bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 1 | /* |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 2 | * virtual page mapping and translated block handling |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, write to the Free Software |
aurel32 | fad6cb1 | 2009-01-04 22:05:52 +0000 | [diff] [blame] | 18 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 19 | */ |
bellard | 67b915a | 2004-03-31 23:37:16 +0000 | [diff] [blame] | 20 | #include "config.h" |
bellard | d5a8f07 | 2004-09-29 21:15:28 +0000 | [diff] [blame] | 21 | #ifdef _WIN32 |
ths | 4fddf62 | 2007-12-17 04:42:29 +0000 | [diff] [blame] | 22 | #define WIN32_LEAN_AND_MEAN |
bellard | d5a8f07 | 2004-09-29 21:15:28 +0000 | [diff] [blame] | 23 | #include <windows.h> |
| 24 | #else |
bellard | a98d49b | 2004-11-14 16:22:05 +0000 | [diff] [blame] | 25 | #include <sys/types.h> |
bellard | d5a8f07 | 2004-09-29 21:15:28 +0000 | [diff] [blame] | 26 | #include <sys/mman.h> |
| 27 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 28 | #include <stdlib.h> |
| 29 | #include <stdio.h> |
| 30 | #include <stdarg.h> |
| 31 | #include <string.h> |
| 32 | #include <errno.h> |
| 33 | #include <unistd.h> |
| 34 | #include <inttypes.h> |
| 35 | |
bellard | 6180a18 | 2003-09-30 21:04:53 +0000 | [diff] [blame] | 36 | #include "cpu.h" |
| 37 | #include "exec-all.h" |
aurel32 | ca10f86 | 2008-04-11 21:35:42 +0000 | [diff] [blame] | 38 | #include "qemu-common.h" |
bellard | b67d9a5 | 2008-05-23 09:57:34 +0000 | [diff] [blame] | 39 | #include "tcg.h" |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 40 | #include "hw/hw.h" |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 41 | #include "osdep.h" |
aliguori | 7ba1e61 | 2008-11-05 16:04:33 +0000 | [diff] [blame] | 42 | #include "kvm.h" |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 43 | #if defined(CONFIG_USER_ONLY) |
| 44 | #include <qemu.h> |
| 45 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 46 | |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 47 | //#define DEBUG_TB_INVALIDATE |
bellard | 66e85a2 | 2003-06-24 13:28:12 +0000 | [diff] [blame] | 48 | //#define DEBUG_FLUSH |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 49 | //#define DEBUG_TLB |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 50 | //#define DEBUG_UNASSIGNED |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 51 | |
| 52 | /* make various TB consistency checks */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 53 | //#define DEBUG_TB_CHECK |
| 54 | //#define DEBUG_TLB_CHECK |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 55 | |
ths | 1196be3 | 2007-03-17 15:17:58 +0000 | [diff] [blame] | 56 | //#define DEBUG_IOPORT |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 57 | //#define DEBUG_SUBPAGE |
ths | 1196be3 | 2007-03-17 15:17:58 +0000 | [diff] [blame] | 58 | |
pbrook | 99773bd | 2006-04-16 15:14:59 +0000 | [diff] [blame] | 59 | #if !defined(CONFIG_USER_ONLY) |
| 60 | /* TB consistency checks only implemented for usermode emulation. */ |
| 61 | #undef DEBUG_TB_CHECK |
| 62 | #endif |
| 63 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 64 | #define SMC_BITMAP_USE_THRESHOLD 10 |
| 65 | |
| 66 | #define MMAP_AREA_START 0x00000000 |
| 67 | #define MMAP_AREA_END 0xa8000000 |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 68 | |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 69 | #if defined(TARGET_SPARC64) |
| 70 | #define TARGET_PHYS_ADDR_SPACE_BITS 41 |
blueswir1 | 5dcb6b9 | 2007-05-19 12:58:30 +0000 | [diff] [blame] | 71 | #elif defined(TARGET_SPARC) |
| 72 | #define TARGET_PHYS_ADDR_SPACE_BITS 36 |
j_mayer | bedb69e | 2007-04-05 20:08:21 +0000 | [diff] [blame] | 73 | #elif defined(TARGET_ALPHA) |
| 74 | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
| 75 | #define TARGET_VIRT_ADDR_SPACE_BITS 42 |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 76 | #elif defined(TARGET_PPC64) |
| 77 | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 78 | #elif defined(TARGET_X86_64) && !defined(USE_KQEMU) |
| 79 | #define TARGET_PHYS_ADDR_SPACE_BITS 42 |
| 80 | #elif defined(TARGET_I386) && !defined(USE_KQEMU) |
| 81 | #define TARGET_PHYS_ADDR_SPACE_BITS 36 |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 82 | #else |
| 83 | /* Note: for compatibility with kqemu, we use 32 bits for x86_64 */ |
| 84 | #define TARGET_PHYS_ADDR_SPACE_BITS 32 |
| 85 | #endif |
| 86 | |
blueswir1 | bdaf78e | 2008-10-04 07:24:27 +0000 | [diff] [blame] | 87 | static TranslationBlock *tbs; |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 88 | int code_gen_max_blocks; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 89 | TranslationBlock *tb_phys_hash[CODE_GEN_PHYS_HASH_SIZE]; |
blueswir1 | bdaf78e | 2008-10-04 07:24:27 +0000 | [diff] [blame] | 90 | static int nb_tbs; |
bellard | eb51d10 | 2003-05-14 21:51:13 +0000 | [diff] [blame] | 91 | /* any access to the tbs or the page table must use this lock */ |
| 92 | spinlock_t tb_lock = SPIN_LOCK_UNLOCKED; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 93 | |
blueswir1 | 141ac46 | 2008-07-26 15:05:57 +0000 | [diff] [blame] | 94 | #if defined(__arm__) || defined(__sparc_v9__) |
| 95 | /* The prologue must be reachable with a direct jump. ARM and Sparc64 |
| 96 | have limited branch ranges (possibly also PPC) so place it in a |
blueswir1 | d03d860 | 2008-07-10 17:21:31 +0000 | [diff] [blame] | 97 | section close to code segment. */ |
| 98 | #define code_gen_section \ |
| 99 | __attribute__((__section__(".gen_code"))) \ |
| 100 | __attribute__((aligned (32))) |
| 101 | #else |
| 102 | #define code_gen_section \ |
| 103 | __attribute__((aligned (32))) |
| 104 | #endif |
| 105 | |
| 106 | uint8_t code_gen_prologue[1024] code_gen_section; |
blueswir1 | bdaf78e | 2008-10-04 07:24:27 +0000 | [diff] [blame] | 107 | static uint8_t *code_gen_buffer; |
| 108 | static unsigned long code_gen_buffer_size; |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 109 | /* threshold to flush the translated code buffer */ |
blueswir1 | bdaf78e | 2008-10-04 07:24:27 +0000 | [diff] [blame] | 110 | static unsigned long code_gen_buffer_max_size; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 111 | uint8_t *code_gen_ptr; |
| 112 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 113 | #if !defined(CONFIG_USER_ONLY) |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 114 | ram_addr_t phys_ram_size; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 115 | int phys_ram_fd; |
| 116 | uint8_t *phys_ram_base; |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 117 | uint8_t *phys_ram_dirty; |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 118 | static int in_migration; |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 119 | static ram_addr_t phys_ram_alloc_offset = 0; |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 120 | #endif |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 121 | |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 122 | CPUState *first_cpu; |
| 123 | /* current CPU in the current thread. It is only valid inside |
| 124 | cpu_exec() */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 125 | CPUState *cpu_single_env; |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 126 | /* 0 = Do not count executed instructions. |
ths | bf20dc0 | 2008-06-30 17:22:19 +0000 | [diff] [blame] | 127 | 1 = Precise instruction counting. |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 128 | 2 = Adaptive rate instruction counting. */ |
| 129 | int use_icount = 0; |
| 130 | /* Current instruction counter. While executing translated code this may |
| 131 | include some instructions that have not yet been executed. */ |
| 132 | int64_t qemu_icount; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 133 | |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 134 | typedef struct PageDesc { |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 135 | /* list of TBs intersecting this ram page */ |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 136 | TranslationBlock *first_tb; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 137 | /* in order to optimize self modifying code, we count the number |
| 138 | of lookups we do to a given page to use a bitmap */ |
| 139 | unsigned int code_write_count; |
| 140 | uint8_t *code_bitmap; |
| 141 | #if defined(CONFIG_USER_ONLY) |
| 142 | unsigned long flags; |
| 143 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 144 | } PageDesc; |
| 145 | |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 146 | typedef struct PhysPageDesc { |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 147 | /* offset in host memory of the page + io_index in the low bits */ |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 148 | ram_addr_t phys_offset; |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 149 | ram_addr_t region_offset; |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 150 | } PhysPageDesc; |
| 151 | |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 152 | #define L2_BITS 10 |
j_mayer | bedb69e | 2007-04-05 20:08:21 +0000 | [diff] [blame] | 153 | #if defined(CONFIG_USER_ONLY) && defined(TARGET_VIRT_ADDR_SPACE_BITS) |
| 154 | /* XXX: this is a temporary hack for alpha target. |
| 155 | * In the future, this is to be replaced by a multi-level table |
| 156 | * to actually be able to handle the complete 64 bits address space. |
| 157 | */ |
| 158 | #define L1_BITS (TARGET_VIRT_ADDR_SPACE_BITS - L2_BITS - TARGET_PAGE_BITS) |
| 159 | #else |
aurel32 | 0387544 | 2008-04-22 20:45:18 +0000 | [diff] [blame] | 160 | #define L1_BITS (32 - L2_BITS - TARGET_PAGE_BITS) |
j_mayer | bedb69e | 2007-04-05 20:08:21 +0000 | [diff] [blame] | 161 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 162 | |
| 163 | #define L1_SIZE (1 << L1_BITS) |
| 164 | #define L2_SIZE (1 << L2_BITS) |
| 165 | |
bellard | 83fb7ad | 2004-07-05 21:25:26 +0000 | [diff] [blame] | 166 | unsigned long qemu_real_host_page_size; |
| 167 | unsigned long qemu_host_page_bits; |
| 168 | unsigned long qemu_host_page_size; |
| 169 | unsigned long qemu_host_page_mask; |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 170 | |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 171 | /* XXX: for system emulation, it could just be an array */ |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 172 | static PageDesc *l1_map[L1_SIZE]; |
blueswir1 | bdaf78e | 2008-10-04 07:24:27 +0000 | [diff] [blame] | 173 | static PhysPageDesc **l1_phys_map; |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 174 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 175 | #if !defined(CONFIG_USER_ONLY) |
| 176 | static void io_mem_init(void); |
| 177 | |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 178 | /* io memory support */ |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 179 | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4]; |
| 180 | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4]; |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 181 | void *io_mem_opaque[IO_MEM_NB_ENTRIES]; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 182 | static int io_mem_nb; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 183 | static int io_mem_watch; |
| 184 | #endif |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 185 | |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 186 | /* log support */ |
blueswir1 | d9b630f | 2008-10-05 09:57:08 +0000 | [diff] [blame] | 187 | static const char *logfilename = "/tmp/qemu.log"; |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 188 | FILE *logfile; |
| 189 | int loglevel; |
pbrook | e735b91 | 2007-06-30 13:53:24 +0000 | [diff] [blame] | 190 | static int log_append = 0; |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 191 | |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 192 | /* statistics */ |
| 193 | static int tlb_flush_count; |
| 194 | static int tb_flush_count; |
| 195 | static int tb_phys_invalidate_count; |
| 196 | |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 197 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK) |
| 198 | typedef struct subpage_t { |
| 199 | target_phys_addr_t base; |
blueswir1 | 3ee8992 | 2008-01-02 19:45:26 +0000 | [diff] [blame] | 200 | CPUReadMemoryFunc **mem_read[TARGET_PAGE_SIZE][4]; |
| 201 | CPUWriteMemoryFunc **mem_write[TARGET_PAGE_SIZE][4]; |
| 202 | void *opaque[TARGET_PAGE_SIZE][2][4]; |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 203 | ram_addr_t region_offset[TARGET_PAGE_SIZE][2][4]; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 204 | } subpage_t; |
| 205 | |
bellard | 7cb69ca | 2008-05-10 10:55:51 +0000 | [diff] [blame] | 206 | #ifdef _WIN32 |
| 207 | static void map_exec(void *addr, long size) |
| 208 | { |
| 209 | DWORD old_protect; |
| 210 | VirtualProtect(addr, size, |
| 211 | PAGE_EXECUTE_READWRITE, &old_protect); |
| 212 | |
| 213 | } |
| 214 | #else |
| 215 | static void map_exec(void *addr, long size) |
| 216 | { |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 217 | unsigned long start, end, page_size; |
bellard | 7cb69ca | 2008-05-10 10:55:51 +0000 | [diff] [blame] | 218 | |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 219 | page_size = getpagesize(); |
bellard | 7cb69ca | 2008-05-10 10:55:51 +0000 | [diff] [blame] | 220 | start = (unsigned long)addr; |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 221 | start &= ~(page_size - 1); |
bellard | 7cb69ca | 2008-05-10 10:55:51 +0000 | [diff] [blame] | 222 | |
| 223 | end = (unsigned long)addr + size; |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 224 | end += page_size - 1; |
| 225 | end &= ~(page_size - 1); |
bellard | 7cb69ca | 2008-05-10 10:55:51 +0000 | [diff] [blame] | 226 | |
| 227 | mprotect((void *)start, end - start, |
| 228 | PROT_READ | PROT_WRITE | PROT_EXEC); |
| 229 | } |
| 230 | #endif |
| 231 | |
bellard | b346ff4 | 2003-06-15 20:05:50 +0000 | [diff] [blame] | 232 | static void page_init(void) |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 233 | { |
bellard | 83fb7ad | 2004-07-05 21:25:26 +0000 | [diff] [blame] | 234 | /* NOTE: we can always suppose that qemu_host_page_size >= |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 235 | TARGET_PAGE_SIZE */ |
aliguori | c2b48b6 | 2008-11-11 22:06:42 +0000 | [diff] [blame] | 236 | #ifdef _WIN32 |
| 237 | { |
| 238 | SYSTEM_INFO system_info; |
| 239 | |
| 240 | GetSystemInfo(&system_info); |
| 241 | qemu_real_host_page_size = system_info.dwPageSize; |
| 242 | } |
| 243 | #else |
| 244 | qemu_real_host_page_size = getpagesize(); |
| 245 | #endif |
bellard | 83fb7ad | 2004-07-05 21:25:26 +0000 | [diff] [blame] | 246 | if (qemu_host_page_size == 0) |
| 247 | qemu_host_page_size = qemu_real_host_page_size; |
| 248 | if (qemu_host_page_size < TARGET_PAGE_SIZE) |
| 249 | qemu_host_page_size = TARGET_PAGE_SIZE; |
| 250 | qemu_host_page_bits = 0; |
| 251 | while ((1 << qemu_host_page_bits) < qemu_host_page_size) |
| 252 | qemu_host_page_bits++; |
| 253 | qemu_host_page_mask = ~(qemu_host_page_size - 1); |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 254 | l1_phys_map = qemu_vmalloc(L1_SIZE * sizeof(void *)); |
| 255 | memset(l1_phys_map, 0, L1_SIZE * sizeof(void *)); |
balrog | 50a9569 | 2007-12-12 01:16:23 +0000 | [diff] [blame] | 256 | |
| 257 | #if !defined(_WIN32) && defined(CONFIG_USER_ONLY) |
| 258 | { |
| 259 | long long startaddr, endaddr; |
| 260 | FILE *f; |
| 261 | int n; |
| 262 | |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 263 | mmap_lock(); |
pbrook | 0776590 | 2008-05-31 16:33:53 +0000 | [diff] [blame] | 264 | last_brk = (unsigned long)sbrk(0); |
balrog | 50a9569 | 2007-12-12 01:16:23 +0000 | [diff] [blame] | 265 | f = fopen("/proc/self/maps", "r"); |
| 266 | if (f) { |
| 267 | do { |
| 268 | n = fscanf (f, "%llx-%llx %*[^\n]\n", &startaddr, &endaddr); |
| 269 | if (n == 2) { |
blueswir1 | e0b8d65 | 2008-05-03 17:51:24 +0000 | [diff] [blame] | 270 | startaddr = MIN(startaddr, |
| 271 | (1ULL << TARGET_PHYS_ADDR_SPACE_BITS) - 1); |
| 272 | endaddr = MIN(endaddr, |
| 273 | (1ULL << TARGET_PHYS_ADDR_SPACE_BITS) - 1); |
pbrook | b5fc909 | 2008-05-29 13:56:10 +0000 | [diff] [blame] | 274 | page_set_flags(startaddr & TARGET_PAGE_MASK, |
balrog | 50a9569 | 2007-12-12 01:16:23 +0000 | [diff] [blame] | 275 | TARGET_PAGE_ALIGN(endaddr), |
| 276 | PAGE_RESERVED); |
| 277 | } |
| 278 | } while (!feof(f)); |
| 279 | fclose(f); |
| 280 | } |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 281 | mmap_unlock(); |
balrog | 50a9569 | 2007-12-12 01:16:23 +0000 | [diff] [blame] | 282 | } |
| 283 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 284 | } |
| 285 | |
aliguori | 434929b | 2008-09-15 15:56:30 +0000 | [diff] [blame] | 286 | static inline PageDesc **page_l1_map(target_ulong index) |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 287 | { |
pbrook | 17e2377 | 2008-06-09 13:47:45 +0000 | [diff] [blame] | 288 | #if TARGET_LONG_BITS > 32 |
| 289 | /* Host memory outside guest VM. For 32-bit targets we have already |
| 290 | excluded high addresses. */ |
ths | d8173e0 | 2008-08-29 13:10:00 +0000 | [diff] [blame] | 291 | if (index > ((target_ulong)L2_SIZE * L1_SIZE)) |
pbrook | 17e2377 | 2008-06-09 13:47:45 +0000 | [diff] [blame] | 292 | return NULL; |
| 293 | #endif |
aliguori | 434929b | 2008-09-15 15:56:30 +0000 | [diff] [blame] | 294 | return &l1_map[index >> L2_BITS]; |
| 295 | } |
| 296 | |
| 297 | static inline PageDesc *page_find_alloc(target_ulong index) |
| 298 | { |
| 299 | PageDesc **lp, *p; |
| 300 | lp = page_l1_map(index); |
| 301 | if (!lp) |
| 302 | return NULL; |
| 303 | |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 304 | p = *lp; |
| 305 | if (!p) { |
| 306 | /* allocate if not found */ |
pbrook | 17e2377 | 2008-06-09 13:47:45 +0000 | [diff] [blame] | 307 | #if defined(CONFIG_USER_ONLY) |
pbrook | 17e2377 | 2008-06-09 13:47:45 +0000 | [diff] [blame] | 308 | size_t len = sizeof(PageDesc) * L2_SIZE; |
| 309 | /* Don't use qemu_malloc because it may recurse. */ |
| 310 | p = mmap(0, len, PROT_READ | PROT_WRITE, |
| 311 | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 312 | *lp = p; |
aurel32 | fb1c2cd | 2008-12-08 18:12:26 +0000 | [diff] [blame] | 313 | if (h2g_valid(p)) { |
| 314 | unsigned long addr = h2g(p); |
pbrook | 17e2377 | 2008-06-09 13:47:45 +0000 | [diff] [blame] | 315 | page_set_flags(addr & TARGET_PAGE_MASK, |
| 316 | TARGET_PAGE_ALIGN(addr + len), |
| 317 | PAGE_RESERVED); |
| 318 | } |
| 319 | #else |
| 320 | p = qemu_mallocz(sizeof(PageDesc) * L2_SIZE); |
| 321 | *lp = p; |
| 322 | #endif |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 323 | } |
| 324 | return p + (index & (L2_SIZE - 1)); |
| 325 | } |
| 326 | |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 327 | static inline PageDesc *page_find(target_ulong index) |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 328 | { |
aliguori | 434929b | 2008-09-15 15:56:30 +0000 | [diff] [blame] | 329 | PageDesc **lp, *p; |
| 330 | lp = page_l1_map(index); |
| 331 | if (!lp) |
| 332 | return NULL; |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 333 | |
aliguori | 434929b | 2008-09-15 15:56:30 +0000 | [diff] [blame] | 334 | p = *lp; |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 335 | if (!p) |
| 336 | return 0; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 337 | return p + (index & (L2_SIZE - 1)); |
bellard | 5493600 | 2003-05-13 00:25:15 +0000 | [diff] [blame] | 338 | } |
| 339 | |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 340 | static PhysPageDesc *phys_page_find_alloc(target_phys_addr_t index, int alloc) |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 341 | { |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 342 | void **lp, **p; |
pbrook | e3f4e2a | 2006-04-08 20:02:06 +0000 | [diff] [blame] | 343 | PhysPageDesc *pd; |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 344 | |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 345 | p = (void **)l1_phys_map; |
| 346 | #if TARGET_PHYS_ADDR_SPACE_BITS > 32 |
| 347 | |
| 348 | #if TARGET_PHYS_ADDR_SPACE_BITS > (32 + L1_BITS) |
| 349 | #error unsupported TARGET_PHYS_ADDR_SPACE_BITS |
| 350 | #endif |
| 351 | lp = p + ((index >> (L1_BITS + L2_BITS)) & (L1_SIZE - 1)); |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 352 | p = *lp; |
| 353 | if (!p) { |
| 354 | /* allocate if not found */ |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 355 | if (!alloc) |
| 356 | return NULL; |
| 357 | p = qemu_vmalloc(sizeof(void *) * L1_SIZE); |
| 358 | memset(p, 0, sizeof(void *) * L1_SIZE); |
| 359 | *lp = p; |
| 360 | } |
| 361 | #endif |
| 362 | lp = p + ((index >> L2_BITS) & (L1_SIZE - 1)); |
pbrook | e3f4e2a | 2006-04-08 20:02:06 +0000 | [diff] [blame] | 363 | pd = *lp; |
| 364 | if (!pd) { |
| 365 | int i; |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 366 | /* allocate if not found */ |
| 367 | if (!alloc) |
| 368 | return NULL; |
pbrook | e3f4e2a | 2006-04-08 20:02:06 +0000 | [diff] [blame] | 369 | pd = qemu_vmalloc(sizeof(PhysPageDesc) * L2_SIZE); |
| 370 | *lp = pd; |
| 371 | for (i = 0; i < L2_SIZE; i++) |
| 372 | pd[i].phys_offset = IO_MEM_UNASSIGNED; |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 373 | } |
pbrook | e3f4e2a | 2006-04-08 20:02:06 +0000 | [diff] [blame] | 374 | return ((PhysPageDesc *)pd) + (index & (L2_SIZE - 1)); |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 375 | } |
| 376 | |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 377 | static inline PhysPageDesc *phys_page_find(target_phys_addr_t index) |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 378 | { |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 379 | return phys_page_find_alloc(index, 0); |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 380 | } |
| 381 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 382 | #if !defined(CONFIG_USER_ONLY) |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 383 | static void tlb_protect_code(ram_addr_t ram_addr); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 384 | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 385 | target_ulong vaddr); |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 386 | #define mmap_lock() do { } while(0) |
| 387 | #define mmap_unlock() do { } while(0) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 388 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 389 | |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 390 | #define DEFAULT_CODE_GEN_BUFFER_SIZE (32 * 1024 * 1024) |
| 391 | |
| 392 | #if defined(CONFIG_USER_ONLY) |
| 393 | /* Currently it is not recommanded to allocate big chunks of data in |
| 394 | user mode. It will change when a dedicated libc will be used */ |
| 395 | #define USE_STATIC_CODE_GEN_BUFFER |
| 396 | #endif |
| 397 | |
| 398 | #ifdef USE_STATIC_CODE_GEN_BUFFER |
| 399 | static uint8_t static_code_gen_buffer[DEFAULT_CODE_GEN_BUFFER_SIZE]; |
| 400 | #endif |
| 401 | |
blueswir1 | 8fcd369 | 2008-08-17 20:26:25 +0000 | [diff] [blame] | 402 | static void code_gen_alloc(unsigned long tb_size) |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 403 | { |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 404 | #ifdef USE_STATIC_CODE_GEN_BUFFER |
| 405 | code_gen_buffer = static_code_gen_buffer; |
| 406 | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
| 407 | map_exec(code_gen_buffer, code_gen_buffer_size); |
| 408 | #else |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 409 | code_gen_buffer_size = tb_size; |
| 410 | if (code_gen_buffer_size == 0) { |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 411 | #if defined(CONFIG_USER_ONLY) |
| 412 | /* in user mode, phys_ram_size is not meaningful */ |
| 413 | code_gen_buffer_size = DEFAULT_CODE_GEN_BUFFER_SIZE; |
| 414 | #else |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 415 | /* XXX: needs ajustments */ |
aliguori | 174a9a1 | 2008-09-24 14:10:36 +0000 | [diff] [blame] | 416 | code_gen_buffer_size = (unsigned long)(phys_ram_size / 4); |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 417 | #endif |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 418 | } |
| 419 | if (code_gen_buffer_size < MIN_CODE_GEN_BUFFER_SIZE) |
| 420 | code_gen_buffer_size = MIN_CODE_GEN_BUFFER_SIZE; |
| 421 | /* The code gen buffer location may have constraints depending on |
| 422 | the host cpu and OS */ |
| 423 | #if defined(__linux__) |
| 424 | { |
| 425 | int flags; |
blueswir1 | 141ac46 | 2008-07-26 15:05:57 +0000 | [diff] [blame] | 426 | void *start = NULL; |
| 427 | |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 428 | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
| 429 | #if defined(__x86_64__) |
| 430 | flags |= MAP_32BIT; |
| 431 | /* Cannot map more than that */ |
| 432 | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
| 433 | code_gen_buffer_size = (800 * 1024 * 1024); |
blueswir1 | 141ac46 | 2008-07-26 15:05:57 +0000 | [diff] [blame] | 434 | #elif defined(__sparc_v9__) |
| 435 | // Map the buffer below 2G, so we can use direct calls and branches |
| 436 | flags |= MAP_FIXED; |
| 437 | start = (void *) 0x60000000UL; |
| 438 | if (code_gen_buffer_size > (512 * 1024 * 1024)) |
| 439 | code_gen_buffer_size = (512 * 1024 * 1024); |
balrog | 1cb0661 | 2008-12-01 02:10:17 +0000 | [diff] [blame] | 440 | #elif defined(__arm__) |
balrog | 63d4124 | 2008-12-01 02:19:41 +0000 | [diff] [blame] | 441 | /* Map the buffer below 32M, so we can use direct calls and branches */ |
balrog | 1cb0661 | 2008-12-01 02:10:17 +0000 | [diff] [blame] | 442 | flags |= MAP_FIXED; |
| 443 | start = (void *) 0x01000000UL; |
| 444 | if (code_gen_buffer_size > 16 * 1024 * 1024) |
| 445 | code_gen_buffer_size = 16 * 1024 * 1024; |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 446 | #endif |
blueswir1 | 141ac46 | 2008-07-26 15:05:57 +0000 | [diff] [blame] | 447 | code_gen_buffer = mmap(start, code_gen_buffer_size, |
| 448 | PROT_WRITE | PROT_READ | PROT_EXEC, |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 449 | flags, -1, 0); |
| 450 | if (code_gen_buffer == MAP_FAILED) { |
| 451 | fprintf(stderr, "Could not allocate dynamic translator buffer\n"); |
| 452 | exit(1); |
| 453 | } |
| 454 | } |
aliguori | 06e67a8 | 2008-09-27 15:32:41 +0000 | [diff] [blame] | 455 | #elif defined(__FreeBSD__) |
| 456 | { |
| 457 | int flags; |
| 458 | void *addr = NULL; |
| 459 | flags = MAP_PRIVATE | MAP_ANONYMOUS; |
| 460 | #if defined(__x86_64__) |
| 461 | /* FreeBSD doesn't have MAP_32BIT, use MAP_FIXED and assume |
| 462 | * 0x40000000 is free */ |
| 463 | flags |= MAP_FIXED; |
| 464 | addr = (void *)0x40000000; |
| 465 | /* Cannot map more than that */ |
| 466 | if (code_gen_buffer_size > (800 * 1024 * 1024)) |
| 467 | code_gen_buffer_size = (800 * 1024 * 1024); |
| 468 | #endif |
| 469 | code_gen_buffer = mmap(addr, code_gen_buffer_size, |
| 470 | PROT_WRITE | PROT_READ | PROT_EXEC, |
| 471 | flags, -1, 0); |
| 472 | if (code_gen_buffer == MAP_FAILED) { |
| 473 | fprintf(stderr, "Could not allocate dynamic translator buffer\n"); |
| 474 | exit(1); |
| 475 | } |
| 476 | } |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 477 | #else |
| 478 | code_gen_buffer = qemu_malloc(code_gen_buffer_size); |
| 479 | if (!code_gen_buffer) { |
| 480 | fprintf(stderr, "Could not allocate dynamic translator buffer\n"); |
| 481 | exit(1); |
| 482 | } |
| 483 | map_exec(code_gen_buffer, code_gen_buffer_size); |
| 484 | #endif |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 485 | #endif /* !USE_STATIC_CODE_GEN_BUFFER */ |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 486 | map_exec(code_gen_prologue, sizeof(code_gen_prologue)); |
| 487 | code_gen_buffer_max_size = code_gen_buffer_size - |
| 488 | code_gen_max_block_size(); |
| 489 | code_gen_max_blocks = code_gen_buffer_size / CODE_GEN_AVG_BLOCK_SIZE; |
| 490 | tbs = qemu_malloc(code_gen_max_blocks * sizeof(TranslationBlock)); |
| 491 | } |
| 492 | |
| 493 | /* Must be called before using the QEMU cpus. 'tb_size' is the size |
| 494 | (in bytes) allocated to the translation buffer. Zero means default |
| 495 | size. */ |
| 496 | void cpu_exec_init_all(unsigned long tb_size) |
| 497 | { |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 498 | cpu_gen_init(); |
| 499 | code_gen_alloc(tb_size); |
| 500 | code_gen_ptr = code_gen_buffer; |
bellard | 4369415 | 2008-05-29 09:35:57 +0000 | [diff] [blame] | 501 | page_init(); |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 502 | #if !defined(CONFIG_USER_ONLY) |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 503 | io_mem_init(); |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 504 | #endif |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 505 | } |
| 506 | |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 507 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
| 508 | |
| 509 | #define CPU_COMMON_SAVE_VERSION 1 |
| 510 | |
| 511 | static void cpu_common_save(QEMUFile *f, void *opaque) |
| 512 | { |
| 513 | CPUState *env = opaque; |
| 514 | |
| 515 | qemu_put_be32s(f, &env->halted); |
| 516 | qemu_put_be32s(f, &env->interrupt_request); |
| 517 | } |
| 518 | |
| 519 | static int cpu_common_load(QEMUFile *f, void *opaque, int version_id) |
| 520 | { |
| 521 | CPUState *env = opaque; |
| 522 | |
| 523 | if (version_id != CPU_COMMON_SAVE_VERSION) |
| 524 | return -EINVAL; |
| 525 | |
| 526 | qemu_get_be32s(f, &env->halted); |
pbrook | 75f482a | 2008-07-01 21:53:33 +0000 | [diff] [blame] | 527 | qemu_get_be32s(f, &env->interrupt_request); |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 528 | tlb_flush(env, 1); |
| 529 | |
| 530 | return 0; |
| 531 | } |
| 532 | #endif |
| 533 | |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 534 | void cpu_exec_init(CPUState *env) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 535 | { |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 536 | CPUState **penv; |
| 537 | int cpu_index; |
| 538 | |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 539 | env->next_cpu = NULL; |
| 540 | penv = &first_cpu; |
| 541 | cpu_index = 0; |
| 542 | while (*penv != NULL) { |
| 543 | penv = (CPUState **)&(*penv)->next_cpu; |
| 544 | cpu_index++; |
| 545 | } |
| 546 | env->cpu_index = cpu_index; |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 547 | TAILQ_INIT(&env->breakpoints); |
| 548 | TAILQ_INIT(&env->watchpoints); |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 549 | *penv = env; |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 550 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
pbrook | 9656f32 | 2008-07-01 20:01:19 +0000 | [diff] [blame] | 551 | register_savevm("cpu_common", cpu_index, CPU_COMMON_SAVE_VERSION, |
| 552 | cpu_common_save, cpu_common_load, env); |
pbrook | b3c7724 | 2008-06-30 16:31:04 +0000 | [diff] [blame] | 553 | register_savevm("cpu", cpu_index, CPU_SAVE_VERSION, |
| 554 | cpu_save, cpu_load, env); |
| 555 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 556 | } |
| 557 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 558 | static inline void invalidate_page_bitmap(PageDesc *p) |
| 559 | { |
| 560 | if (p->code_bitmap) { |
bellard | 59817cc | 2004-02-16 22:01:13 +0000 | [diff] [blame] | 561 | qemu_free(p->code_bitmap); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 562 | p->code_bitmap = NULL; |
| 563 | } |
| 564 | p->code_write_count = 0; |
| 565 | } |
| 566 | |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 567 | /* set to NULL all the 'first_tb' fields in all PageDescs */ |
| 568 | static void page_flush_tb(void) |
| 569 | { |
| 570 | int i, j; |
| 571 | PageDesc *p; |
| 572 | |
| 573 | for(i = 0; i < L1_SIZE; i++) { |
| 574 | p = l1_map[i]; |
| 575 | if (p) { |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 576 | for(j = 0; j < L2_SIZE; j++) { |
| 577 | p->first_tb = NULL; |
| 578 | invalidate_page_bitmap(p); |
| 579 | p++; |
| 580 | } |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 581 | } |
| 582 | } |
| 583 | } |
| 584 | |
| 585 | /* flush all the translation blocks */ |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 586 | /* XXX: tb_flush is currently not thread safe */ |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 587 | void tb_flush(CPUState *env1) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 588 | { |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 589 | CPUState *env; |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 590 | #if defined(DEBUG_FLUSH) |
blueswir1 | ab3d172 | 2007-11-04 07:31:40 +0000 | [diff] [blame] | 591 | printf("qemu: flush code_size=%ld nb_tbs=%d avg_tb_size=%ld\n", |
| 592 | (unsigned long)(code_gen_ptr - code_gen_buffer), |
| 593 | nb_tbs, nb_tbs > 0 ? |
| 594 | ((unsigned long)(code_gen_ptr - code_gen_buffer)) / nb_tbs : 0); |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 595 | #endif |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 596 | if ((unsigned long)(code_gen_ptr - code_gen_buffer) > code_gen_buffer_size) |
pbrook | a208e54 | 2008-03-31 17:07:36 +0000 | [diff] [blame] | 597 | cpu_abort(env1, "Internal error: code buffer overflow\n"); |
| 598 | |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 599 | nb_tbs = 0; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 600 | |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 601 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 602 | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
| 603 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 604 | |
bellard | 8a8a608 | 2004-10-03 13:36:49 +0000 | [diff] [blame] | 605 | memset (tb_phys_hash, 0, CODE_GEN_PHYS_HASH_SIZE * sizeof (void *)); |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 606 | page_flush_tb(); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 607 | |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 608 | code_gen_ptr = code_gen_buffer; |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 609 | /* XXX: flush processor icache at this point if cache flush is |
| 610 | expensive */ |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 611 | tb_flush_count++; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 612 | } |
| 613 | |
| 614 | #ifdef DEBUG_TB_CHECK |
| 615 | |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 616 | static void tb_invalidate_check(target_ulong address) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 617 | { |
| 618 | TranslationBlock *tb; |
| 619 | int i; |
| 620 | address &= TARGET_PAGE_MASK; |
pbrook | 99773bd | 2006-04-16 15:14:59 +0000 | [diff] [blame] | 621 | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
| 622 | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 623 | if (!(address + TARGET_PAGE_SIZE <= tb->pc || |
| 624 | address >= tb->pc + tb->size)) { |
| 625 | printf("ERROR invalidate: address=%08lx PC=%08lx size=%04x\n", |
pbrook | 99773bd | 2006-04-16 15:14:59 +0000 | [diff] [blame] | 626 | address, (long)tb->pc, tb->size); |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 627 | } |
| 628 | } |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | /* verify that all the pages have correct rights for code */ |
| 633 | static void tb_page_check(void) |
| 634 | { |
| 635 | TranslationBlock *tb; |
| 636 | int i, flags1, flags2; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 637 | |
pbrook | 99773bd | 2006-04-16 15:14:59 +0000 | [diff] [blame] | 638 | for(i = 0;i < CODE_GEN_PHYS_HASH_SIZE; i++) { |
| 639 | for(tb = tb_phys_hash[i]; tb != NULL; tb = tb->phys_hash_next) { |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 640 | flags1 = page_get_flags(tb->pc); |
| 641 | flags2 = page_get_flags(tb->pc + tb->size - 1); |
| 642 | if ((flags1 & PAGE_WRITE) || (flags2 & PAGE_WRITE)) { |
| 643 | printf("ERROR page flags: PC=%08lx size=%04x f1=%x f2=%x\n", |
pbrook | 99773bd | 2006-04-16 15:14:59 +0000 | [diff] [blame] | 644 | (long)tb->pc, tb->size, flags1, flags2); |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 645 | } |
| 646 | } |
| 647 | } |
| 648 | } |
| 649 | |
blueswir1 | bdaf78e | 2008-10-04 07:24:27 +0000 | [diff] [blame] | 650 | static void tb_jmp_check(TranslationBlock *tb) |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 651 | { |
| 652 | TranslationBlock *tb1; |
| 653 | unsigned int n1; |
| 654 | |
| 655 | /* suppress any remaining jumps to this TB */ |
| 656 | tb1 = tb->jmp_first; |
| 657 | for(;;) { |
| 658 | n1 = (long)tb1 & 3; |
| 659 | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
| 660 | if (n1 == 2) |
| 661 | break; |
| 662 | tb1 = tb1->jmp_next[n1]; |
| 663 | } |
| 664 | /* check end of list */ |
| 665 | if (tb1 != tb) { |
| 666 | printf("ERROR: jmp_list from 0x%08lx\n", (long)tb); |
| 667 | } |
| 668 | } |
| 669 | |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 670 | #endif |
| 671 | |
| 672 | /* invalidate one TB */ |
| 673 | static inline void tb_remove(TranslationBlock **ptb, TranslationBlock *tb, |
| 674 | int next_offset) |
| 675 | { |
| 676 | TranslationBlock *tb1; |
| 677 | for(;;) { |
| 678 | tb1 = *ptb; |
| 679 | if (tb1 == tb) { |
| 680 | *ptb = *(TranslationBlock **)((char *)tb1 + next_offset); |
| 681 | break; |
| 682 | } |
| 683 | ptb = (TranslationBlock **)((char *)tb1 + next_offset); |
| 684 | } |
| 685 | } |
| 686 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 687 | static inline void tb_page_remove(TranslationBlock **ptb, TranslationBlock *tb) |
| 688 | { |
| 689 | TranslationBlock *tb1; |
| 690 | unsigned int n1; |
| 691 | |
| 692 | for(;;) { |
| 693 | tb1 = *ptb; |
| 694 | n1 = (long)tb1 & 3; |
| 695 | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
| 696 | if (tb1 == tb) { |
| 697 | *ptb = tb1->page_next[n1]; |
| 698 | break; |
| 699 | } |
| 700 | ptb = &tb1->page_next[n1]; |
| 701 | } |
| 702 | } |
| 703 | |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 704 | static inline void tb_jmp_remove(TranslationBlock *tb, int n) |
| 705 | { |
| 706 | TranslationBlock *tb1, **ptb; |
| 707 | unsigned int n1; |
| 708 | |
| 709 | ptb = &tb->jmp_next[n]; |
| 710 | tb1 = *ptb; |
| 711 | if (tb1) { |
| 712 | /* find tb(n) in circular list */ |
| 713 | for(;;) { |
| 714 | tb1 = *ptb; |
| 715 | n1 = (long)tb1 & 3; |
| 716 | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
| 717 | if (n1 == n && tb1 == tb) |
| 718 | break; |
| 719 | if (n1 == 2) { |
| 720 | ptb = &tb1->jmp_first; |
| 721 | } else { |
| 722 | ptb = &tb1->jmp_next[n1]; |
| 723 | } |
| 724 | } |
| 725 | /* now we can suppress tb(n) from the list */ |
| 726 | *ptb = tb->jmp_next[n]; |
| 727 | |
| 728 | tb->jmp_next[n] = NULL; |
| 729 | } |
| 730 | } |
| 731 | |
| 732 | /* reset the jump entry 'n' of a TB so that it is not chained to |
| 733 | another TB */ |
| 734 | static inline void tb_reset_jump(TranslationBlock *tb, int n) |
| 735 | { |
| 736 | tb_set_jmp_target(tb, n, (unsigned long)(tb->tc_ptr + tb->tb_next_offset[n])); |
| 737 | } |
| 738 | |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 739 | void tb_phys_invalidate(TranslationBlock *tb, target_ulong page_addr) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 740 | { |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 741 | CPUState *env; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 742 | PageDesc *p; |
bellard | 8a40a18 | 2005-11-20 10:35:40 +0000 | [diff] [blame] | 743 | unsigned int h, n1; |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 744 | target_phys_addr_t phys_pc; |
bellard | 8a40a18 | 2005-11-20 10:35:40 +0000 | [diff] [blame] | 745 | TranslationBlock *tb1, *tb2; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 746 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 747 | /* remove the TB from the hash list */ |
| 748 | phys_pc = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); |
| 749 | h = tb_phys_hash_func(phys_pc); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 750 | tb_remove(&tb_phys_hash[h], tb, |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 751 | offsetof(TranslationBlock, phys_hash_next)); |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 752 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 753 | /* remove the TB from the page list */ |
| 754 | if (tb->page_addr[0] != page_addr) { |
| 755 | p = page_find(tb->page_addr[0] >> TARGET_PAGE_BITS); |
| 756 | tb_page_remove(&p->first_tb, tb); |
| 757 | invalidate_page_bitmap(p); |
| 758 | } |
| 759 | if (tb->page_addr[1] != -1 && tb->page_addr[1] != page_addr) { |
| 760 | p = page_find(tb->page_addr[1] >> TARGET_PAGE_BITS); |
| 761 | tb_page_remove(&p->first_tb, tb); |
| 762 | invalidate_page_bitmap(p); |
| 763 | } |
| 764 | |
bellard | 8a40a18 | 2005-11-20 10:35:40 +0000 | [diff] [blame] | 765 | tb_invalidated_flag = 1; |
| 766 | |
| 767 | /* remove the TB from the hash list */ |
| 768 | h = tb_jmp_cache_hash_func(tb->pc); |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 769 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 770 | if (env->tb_jmp_cache[h] == tb) |
| 771 | env->tb_jmp_cache[h] = NULL; |
| 772 | } |
bellard | 8a40a18 | 2005-11-20 10:35:40 +0000 | [diff] [blame] | 773 | |
| 774 | /* suppress this TB from the two jump lists */ |
| 775 | tb_jmp_remove(tb, 0); |
| 776 | tb_jmp_remove(tb, 1); |
| 777 | |
| 778 | /* suppress any remaining jumps to this TB */ |
| 779 | tb1 = tb->jmp_first; |
| 780 | for(;;) { |
| 781 | n1 = (long)tb1 & 3; |
| 782 | if (n1 == 2) |
| 783 | break; |
| 784 | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
| 785 | tb2 = tb1->jmp_next[n1]; |
| 786 | tb_reset_jump(tb1, n1); |
| 787 | tb1->jmp_next[n1] = NULL; |
| 788 | tb1 = tb2; |
| 789 | } |
| 790 | tb->jmp_first = (TranslationBlock *)((long)tb | 2); /* fail safe */ |
| 791 | |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 792 | tb_phys_invalidate_count++; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 793 | } |
| 794 | |
| 795 | static inline void set_bits(uint8_t *tab, int start, int len) |
| 796 | { |
| 797 | int end, mask, end1; |
| 798 | |
| 799 | end = start + len; |
| 800 | tab += start >> 3; |
| 801 | mask = 0xff << (start & 7); |
| 802 | if ((start & ~7) == (end & ~7)) { |
| 803 | if (start < end) { |
| 804 | mask &= ~(0xff << (end & 7)); |
| 805 | *tab |= mask; |
| 806 | } |
| 807 | } else { |
| 808 | *tab++ |= mask; |
| 809 | start = (start + 8) & ~7; |
| 810 | end1 = end & ~7; |
| 811 | while (start < end1) { |
| 812 | *tab++ = 0xff; |
| 813 | start += 8; |
| 814 | } |
| 815 | if (start < end) { |
| 816 | mask = ~(0xff << (end & 7)); |
| 817 | *tab |= mask; |
| 818 | } |
| 819 | } |
| 820 | } |
| 821 | |
| 822 | static void build_page_bitmap(PageDesc *p) |
| 823 | { |
| 824 | int n, tb_start, tb_end; |
| 825 | TranslationBlock *tb; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 826 | |
pbrook | b2a7081 | 2008-06-09 13:57:23 +0000 | [diff] [blame] | 827 | p->code_bitmap = qemu_mallocz(TARGET_PAGE_SIZE / 8); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 828 | if (!p->code_bitmap) |
| 829 | return; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 830 | |
| 831 | tb = p->first_tb; |
| 832 | while (tb != NULL) { |
| 833 | n = (long)tb & 3; |
| 834 | tb = (TranslationBlock *)((long)tb & ~3); |
| 835 | /* NOTE: this is subtle as a TB may span two physical pages */ |
| 836 | if (n == 0) { |
| 837 | /* NOTE: tb_end may be after the end of the page, but |
| 838 | it is not a problem */ |
| 839 | tb_start = tb->pc & ~TARGET_PAGE_MASK; |
| 840 | tb_end = tb_start + tb->size; |
| 841 | if (tb_end > TARGET_PAGE_SIZE) |
| 842 | tb_end = TARGET_PAGE_SIZE; |
| 843 | } else { |
| 844 | tb_start = 0; |
| 845 | tb_end = ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
| 846 | } |
| 847 | set_bits(p->code_bitmap, tb_start, tb_end - tb_start); |
| 848 | tb = tb->page_next[n]; |
| 849 | } |
| 850 | } |
| 851 | |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 852 | TranslationBlock *tb_gen_code(CPUState *env, |
| 853 | target_ulong pc, target_ulong cs_base, |
| 854 | int flags, int cflags) |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 855 | { |
| 856 | TranslationBlock *tb; |
| 857 | uint8_t *tc_ptr; |
| 858 | target_ulong phys_pc, phys_page2, virt_page2; |
| 859 | int code_gen_size; |
| 860 | |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 861 | phys_pc = get_phys_addr_code(env, pc); |
| 862 | tb = tb_alloc(pc); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 863 | if (!tb) { |
| 864 | /* flush must be done */ |
| 865 | tb_flush(env); |
| 866 | /* cannot fail at this point */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 867 | tb = tb_alloc(pc); |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 868 | /* Don't forget to invalidate previous TB info. */ |
| 869 | tb_invalidated_flag = 1; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 870 | } |
| 871 | tc_ptr = code_gen_ptr; |
| 872 | tb->tc_ptr = tc_ptr; |
| 873 | tb->cs_base = cs_base; |
| 874 | tb->flags = flags; |
| 875 | tb->cflags = cflags; |
blueswir1 | d07bde8 | 2007-12-11 19:35:45 +0000 | [diff] [blame] | 876 | cpu_gen_code(env, tb, &code_gen_size); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 877 | code_gen_ptr = (void *)(((unsigned long)code_gen_ptr + code_gen_size + CODE_GEN_ALIGN - 1) & ~(CODE_GEN_ALIGN - 1)); |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 878 | |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 879 | /* check next page if needed */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 880 | virt_page2 = (pc + tb->size - 1) & TARGET_PAGE_MASK; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 881 | phys_page2 = -1; |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 882 | if ((pc & TARGET_PAGE_MASK) != virt_page2) { |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 883 | phys_page2 = get_phys_addr_code(env, virt_page2); |
| 884 | } |
| 885 | tb_link_phys(tb, phys_pc, phys_page2); |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 886 | return tb; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 887 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 888 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 889 | /* invalidate all TBs which intersect with the target physical page |
| 890 | starting in range [start;end[. NOTE: start and end must refer to |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 891 | the same physical page. 'is_cpu_write_access' should be true if called |
| 892 | from a real cpu write access: the virtual CPU will exit the current |
| 893 | TB if code is modified inside this TB. */ |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 894 | void tb_invalidate_phys_page_range(target_phys_addr_t start, target_phys_addr_t end, |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 895 | int is_cpu_write_access) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 896 | { |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 897 | TranslationBlock *tb, *tb_next, *saved_tb; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 898 | CPUState *env = cpu_single_env; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 899 | target_ulong tb_start, tb_end; |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 900 | PageDesc *p; |
| 901 | int n; |
| 902 | #ifdef TARGET_HAS_PRECISE_SMC |
| 903 | int current_tb_not_found = is_cpu_write_access; |
| 904 | TranslationBlock *current_tb = NULL; |
| 905 | int current_tb_modified = 0; |
| 906 | target_ulong current_pc = 0; |
| 907 | target_ulong current_cs_base = 0; |
| 908 | int current_flags = 0; |
| 909 | #endif /* TARGET_HAS_PRECISE_SMC */ |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 910 | |
| 911 | p = page_find(start >> TARGET_PAGE_BITS); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 912 | if (!p) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 913 | return; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 914 | if (!p->code_bitmap && |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 915 | ++p->code_write_count >= SMC_BITMAP_USE_THRESHOLD && |
| 916 | is_cpu_write_access) { |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 917 | /* build code bitmap */ |
| 918 | build_page_bitmap(p); |
| 919 | } |
| 920 | |
| 921 | /* we remove all the TBs in the range [start, end[ */ |
| 922 | /* XXX: see if in some cases it could be faster to invalidate all the code */ |
| 923 | tb = p->first_tb; |
| 924 | while (tb != NULL) { |
| 925 | n = (long)tb & 3; |
| 926 | tb = (TranslationBlock *)((long)tb & ~3); |
| 927 | tb_next = tb->page_next[n]; |
| 928 | /* NOTE: this is subtle as a TB may span two physical pages */ |
| 929 | if (n == 0) { |
| 930 | /* NOTE: tb_end may be after the end of the page, but |
| 931 | it is not a problem */ |
| 932 | tb_start = tb->page_addr[0] + (tb->pc & ~TARGET_PAGE_MASK); |
| 933 | tb_end = tb_start + tb->size; |
| 934 | } else { |
| 935 | tb_start = tb->page_addr[1]; |
| 936 | tb_end = tb_start + ((tb->pc + tb->size) & ~TARGET_PAGE_MASK); |
| 937 | } |
| 938 | if (!(tb_end <= start || tb_start >= end)) { |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 939 | #ifdef TARGET_HAS_PRECISE_SMC |
| 940 | if (current_tb_not_found) { |
| 941 | current_tb_not_found = 0; |
| 942 | current_tb = NULL; |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 943 | if (env->mem_io_pc) { |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 944 | /* now we have a real cpu fault */ |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 945 | current_tb = tb_find_pc(env->mem_io_pc); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 946 | } |
| 947 | } |
| 948 | if (current_tb == tb && |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 949 | (current_tb->cflags & CF_COUNT_MASK) != 1) { |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 950 | /* If we are modifying the current TB, we must stop |
| 951 | its execution. We could be more precise by checking |
| 952 | that the modification is after the current PC, but it |
| 953 | would require a specialized function to partially |
| 954 | restore the CPU state */ |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 955 | |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 956 | current_tb_modified = 1; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 957 | cpu_restore_state(current_tb, env, |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 958 | env->mem_io_pc, NULL); |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 959 | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
| 960 | ¤t_flags); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 961 | } |
| 962 | #endif /* TARGET_HAS_PRECISE_SMC */ |
bellard | 6f5a9f7 | 2005-11-26 20:12:28 +0000 | [diff] [blame] | 963 | /* we need to do that to handle the case where a signal |
| 964 | occurs while doing tb_phys_invalidate() */ |
| 965 | saved_tb = NULL; |
| 966 | if (env) { |
| 967 | saved_tb = env->current_tb; |
| 968 | env->current_tb = NULL; |
| 969 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 970 | tb_phys_invalidate(tb, -1); |
bellard | 6f5a9f7 | 2005-11-26 20:12:28 +0000 | [diff] [blame] | 971 | if (env) { |
| 972 | env->current_tb = saved_tb; |
| 973 | if (env->interrupt_request && env->current_tb) |
| 974 | cpu_interrupt(env, env->interrupt_request); |
| 975 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 976 | } |
| 977 | tb = tb_next; |
| 978 | } |
| 979 | #if !defined(CONFIG_USER_ONLY) |
| 980 | /* if no code remaining, no need to continue to use slow writes */ |
| 981 | if (!p->first_tb) { |
| 982 | invalidate_page_bitmap(p); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 983 | if (is_cpu_write_access) { |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 984 | tlb_unprotect_code_phys(env, start, env->mem_io_vaddr); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 985 | } |
| 986 | } |
| 987 | #endif |
| 988 | #ifdef TARGET_HAS_PRECISE_SMC |
| 989 | if (current_tb_modified) { |
| 990 | /* we generate a block containing just the instruction |
| 991 | modifying the memory. It will ensure that it cannot modify |
| 992 | itself */ |
bellard | ea1c180 | 2004-06-14 18:56:36 +0000 | [diff] [blame] | 993 | env->current_tb = NULL; |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 994 | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 995 | cpu_resume_from_signal(env, NULL); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 996 | } |
| 997 | #endif |
| 998 | } |
| 999 | |
| 1000 | /* len must be <= 8 and start must be a multiple of len */ |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 1001 | static inline void tb_invalidate_phys_page_fast(target_phys_addr_t start, int len) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1002 | { |
| 1003 | PageDesc *p; |
| 1004 | int offset, b; |
bellard | 59817cc | 2004-02-16 22:01:13 +0000 | [diff] [blame] | 1005 | #if 0 |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 1006 | if (1) { |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 1007 | qemu_log("modifying code at 0x%x size=%d EIP=%x PC=%08x\n", |
| 1008 | cpu_single_env->mem_io_vaddr, len, |
| 1009 | cpu_single_env->eip, |
| 1010 | cpu_single_env->eip + (long)cpu_single_env->segs[R_CS].base); |
bellard | 59817cc | 2004-02-16 22:01:13 +0000 | [diff] [blame] | 1011 | } |
| 1012 | #endif |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1013 | p = page_find(start >> TARGET_PAGE_BITS); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1014 | if (!p) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1015 | return; |
| 1016 | if (p->code_bitmap) { |
| 1017 | offset = start & ~TARGET_PAGE_MASK; |
| 1018 | b = p->code_bitmap[offset >> 3] >> (offset & 7); |
| 1019 | if (b & ((1 << len) - 1)) |
| 1020 | goto do_invalidate; |
| 1021 | } else { |
| 1022 | do_invalidate: |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1023 | tb_invalidate_phys_page_range(start, start + len, 1); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1024 | } |
| 1025 | } |
| 1026 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1027 | #if !defined(CONFIG_SOFTMMU) |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 1028 | static void tb_invalidate_phys_page(target_phys_addr_t addr, |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1029 | unsigned long pc, void *puc) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1030 | { |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 1031 | TranslationBlock *tb; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1032 | PageDesc *p; |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 1033 | int n; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1034 | #ifdef TARGET_HAS_PRECISE_SMC |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 1035 | TranslationBlock *current_tb = NULL; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1036 | CPUState *env = cpu_single_env; |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 1037 | int current_tb_modified = 0; |
| 1038 | target_ulong current_pc = 0; |
| 1039 | target_ulong current_cs_base = 0; |
| 1040 | int current_flags = 0; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1041 | #endif |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1042 | |
| 1043 | addr &= TARGET_PAGE_MASK; |
| 1044 | p = page_find(addr >> TARGET_PAGE_BITS); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1045 | if (!p) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1046 | return; |
| 1047 | tb = p->first_tb; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1048 | #ifdef TARGET_HAS_PRECISE_SMC |
| 1049 | if (tb && pc != 0) { |
| 1050 | current_tb = tb_find_pc(pc); |
| 1051 | } |
| 1052 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1053 | while (tb != NULL) { |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1054 | n = (long)tb & 3; |
| 1055 | tb = (TranslationBlock *)((long)tb & ~3); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1056 | #ifdef TARGET_HAS_PRECISE_SMC |
| 1057 | if (current_tb == tb && |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1058 | (current_tb->cflags & CF_COUNT_MASK) != 1) { |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1059 | /* If we are modifying the current TB, we must stop |
| 1060 | its execution. We could be more precise by checking |
| 1061 | that the modification is after the current PC, but it |
| 1062 | would require a specialized function to partially |
| 1063 | restore the CPU state */ |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1064 | |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1065 | current_tb_modified = 1; |
| 1066 | cpu_restore_state(current_tb, env, pc, puc); |
aliguori | 6b91754 | 2008-11-18 19:46:41 +0000 | [diff] [blame] | 1067 | cpu_get_tb_cpu_state(env, ¤t_pc, ¤t_cs_base, |
| 1068 | ¤t_flags); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1069 | } |
| 1070 | #endif /* TARGET_HAS_PRECISE_SMC */ |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1071 | tb_phys_invalidate(tb, addr); |
| 1072 | tb = tb->page_next[n]; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1073 | } |
| 1074 | p->first_tb = NULL; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1075 | #ifdef TARGET_HAS_PRECISE_SMC |
| 1076 | if (current_tb_modified) { |
| 1077 | /* we generate a block containing just the instruction |
| 1078 | modifying the memory. It will ensure that it cannot modify |
| 1079 | itself */ |
bellard | ea1c180 | 2004-06-14 18:56:36 +0000 | [diff] [blame] | 1080 | env->current_tb = NULL; |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1081 | tb_gen_code(env, current_pc, current_cs_base, current_flags, 1); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1082 | cpu_resume_from_signal(env, puc); |
| 1083 | } |
| 1084 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1085 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1086 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1087 | |
| 1088 | /* add the tb in the target page and protect it if necessary */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1089 | static inline void tb_alloc_page(TranslationBlock *tb, |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1090 | unsigned int n, target_ulong page_addr) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1091 | { |
| 1092 | PageDesc *p; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1093 | TranslationBlock *last_first_tb; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1094 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1095 | tb->page_addr[n] = page_addr; |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1096 | p = page_find_alloc(page_addr >> TARGET_PAGE_BITS); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1097 | tb->page_next[n] = p->first_tb; |
| 1098 | last_first_tb = p->first_tb; |
| 1099 | p->first_tb = (TranslationBlock *)((long)tb | n); |
| 1100 | invalidate_page_bitmap(p); |
| 1101 | |
bellard | 107db44 | 2004-06-22 18:48:46 +0000 | [diff] [blame] | 1102 | #if defined(TARGET_HAS_SMC) || 1 |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1103 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1104 | #if defined(CONFIG_USER_ONLY) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1105 | if (p->flags & PAGE_WRITE) { |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1106 | target_ulong addr; |
| 1107 | PageDesc *p2; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1108 | int prot; |
| 1109 | |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1110 | /* force the host page as non writable (writes will have a |
| 1111 | page fault + mprotect overhead) */ |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1112 | page_addr &= qemu_host_page_mask; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1113 | prot = 0; |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1114 | for(addr = page_addr; addr < page_addr + qemu_host_page_size; |
| 1115 | addr += TARGET_PAGE_SIZE) { |
| 1116 | |
| 1117 | p2 = page_find (addr >> TARGET_PAGE_BITS); |
| 1118 | if (!p2) |
| 1119 | continue; |
| 1120 | prot |= p2->flags; |
| 1121 | p2->flags &= ~PAGE_WRITE; |
| 1122 | page_get_flags(addr); |
| 1123 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1124 | mprotect(g2h(page_addr), qemu_host_page_size, |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1125 | (prot & PAGE_BITS) & ~PAGE_WRITE); |
| 1126 | #ifdef DEBUG_TB_INVALIDATE |
blueswir1 | ab3d172 | 2007-11-04 07:31:40 +0000 | [diff] [blame] | 1127 | printf("protecting code page: 0x" TARGET_FMT_lx "\n", |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 1128 | page_addr); |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1129 | #endif |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1130 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1131 | #else |
| 1132 | /* if some code is already present, then the pages are already |
| 1133 | protected. So we handle the case where only the first TB is |
| 1134 | allocated in a physical page */ |
| 1135 | if (!last_first_tb) { |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1136 | tlb_protect_code(page_addr); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1137 | } |
| 1138 | #endif |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1139 | |
| 1140 | #endif /* TARGET_HAS_SMC */ |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1141 | } |
| 1142 | |
| 1143 | /* Allocate a new translation block. Flush the translation buffer if |
| 1144 | too many translation blocks or too much generated code. */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1145 | TranslationBlock *tb_alloc(target_ulong pc) |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1146 | { |
| 1147 | TranslationBlock *tb; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1148 | |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 1149 | if (nb_tbs >= code_gen_max_blocks || |
| 1150 | (code_gen_ptr - code_gen_buffer) >= code_gen_buffer_max_size) |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 1151 | return NULL; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1152 | tb = &tbs[nb_tbs++]; |
| 1153 | tb->pc = pc; |
bellard | b448f2f | 2004-02-25 23:24:04 +0000 | [diff] [blame] | 1154 | tb->cflags = 0; |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 1155 | return tb; |
| 1156 | } |
| 1157 | |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1158 | void tb_free(TranslationBlock *tb) |
| 1159 | { |
ths | bf20dc0 | 2008-06-30 17:22:19 +0000 | [diff] [blame] | 1160 | /* In practice this is mostly used for single use temporary TB |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1161 | Ignore the hard cases and just back up if this TB happens to |
| 1162 | be the last one generated. */ |
| 1163 | if (nb_tbs > 0 && tb == &tbs[nb_tbs - 1]) { |
| 1164 | code_gen_ptr = tb->tc_ptr; |
| 1165 | nb_tbs--; |
| 1166 | } |
| 1167 | } |
| 1168 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1169 | /* add a new TB and link it to the physical page tables. phys_page2 is |
| 1170 | (-1) to indicate that only one page contains the TB. */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1171 | void tb_link_phys(TranslationBlock *tb, |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1172 | target_ulong phys_pc, target_ulong phys_page2) |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 1173 | { |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1174 | unsigned int h; |
| 1175 | TranslationBlock **ptb; |
| 1176 | |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 1177 | /* Grab the mmap lock to stop another thread invalidating this TB |
| 1178 | before we are done. */ |
| 1179 | mmap_lock(); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1180 | /* add in the physical hash table */ |
| 1181 | h = tb_phys_hash_func(phys_pc); |
| 1182 | ptb = &tb_phys_hash[h]; |
| 1183 | tb->phys_hash_next = *ptb; |
| 1184 | *ptb = tb; |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1185 | |
| 1186 | /* add in the page list */ |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1187 | tb_alloc_page(tb, 0, phys_pc & TARGET_PAGE_MASK); |
| 1188 | if (phys_page2 != -1) |
| 1189 | tb_alloc_page(tb, 1, phys_page2); |
| 1190 | else |
| 1191 | tb->page_addr[1] = -1; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1192 | |
bellard | d4e8164 | 2003-05-25 16:46:15 +0000 | [diff] [blame] | 1193 | tb->jmp_first = (TranslationBlock *)((long)tb | 2); |
| 1194 | tb->jmp_next[0] = NULL; |
| 1195 | tb->jmp_next[1] = NULL; |
| 1196 | |
| 1197 | /* init original jump addresses */ |
| 1198 | if (tb->tb_next_offset[0] != 0xffff) |
| 1199 | tb_reset_jump(tb, 0); |
| 1200 | if (tb->tb_next_offset[1] != 0xffff) |
| 1201 | tb_reset_jump(tb, 1); |
bellard | 8a40a18 | 2005-11-20 10:35:40 +0000 | [diff] [blame] | 1202 | |
| 1203 | #ifdef DEBUG_TB_CHECK |
| 1204 | tb_page_check(); |
| 1205 | #endif |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 1206 | mmap_unlock(); |
bellard | fd6ce8f | 2003-05-14 19:00:11 +0000 | [diff] [blame] | 1207 | } |
| 1208 | |
bellard | a513fe1 | 2003-05-27 23:29:48 +0000 | [diff] [blame] | 1209 | /* find the TB 'tb' such that tb[0].tc_ptr <= tc_ptr < |
| 1210 | tb[1].tc_ptr. Return NULL if not found */ |
| 1211 | TranslationBlock *tb_find_pc(unsigned long tc_ptr) |
| 1212 | { |
| 1213 | int m_min, m_max, m; |
| 1214 | unsigned long v; |
| 1215 | TranslationBlock *tb; |
| 1216 | |
| 1217 | if (nb_tbs <= 0) |
| 1218 | return NULL; |
| 1219 | if (tc_ptr < (unsigned long)code_gen_buffer || |
| 1220 | tc_ptr >= (unsigned long)code_gen_ptr) |
| 1221 | return NULL; |
| 1222 | /* binary search (cf Knuth) */ |
| 1223 | m_min = 0; |
| 1224 | m_max = nb_tbs - 1; |
| 1225 | while (m_min <= m_max) { |
| 1226 | m = (m_min + m_max) >> 1; |
| 1227 | tb = &tbs[m]; |
| 1228 | v = (unsigned long)tb->tc_ptr; |
| 1229 | if (v == tc_ptr) |
| 1230 | return tb; |
| 1231 | else if (tc_ptr < v) { |
| 1232 | m_max = m - 1; |
| 1233 | } else { |
| 1234 | m_min = m + 1; |
| 1235 | } |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1236 | } |
bellard | a513fe1 | 2003-05-27 23:29:48 +0000 | [diff] [blame] | 1237 | return &tbs[m_max]; |
| 1238 | } |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 1239 | |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1240 | static void tb_reset_jump_recursive(TranslationBlock *tb); |
| 1241 | |
| 1242 | static inline void tb_reset_jump_recursive2(TranslationBlock *tb, int n) |
| 1243 | { |
| 1244 | TranslationBlock *tb1, *tb_next, **ptb; |
| 1245 | unsigned int n1; |
| 1246 | |
| 1247 | tb1 = tb->jmp_next[n]; |
| 1248 | if (tb1 != NULL) { |
| 1249 | /* find head of list */ |
| 1250 | for(;;) { |
| 1251 | n1 = (long)tb1 & 3; |
| 1252 | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
| 1253 | if (n1 == 2) |
| 1254 | break; |
| 1255 | tb1 = tb1->jmp_next[n1]; |
| 1256 | } |
| 1257 | /* we are now sure now that tb jumps to tb1 */ |
| 1258 | tb_next = tb1; |
| 1259 | |
| 1260 | /* remove tb from the jmp_first list */ |
| 1261 | ptb = &tb_next->jmp_first; |
| 1262 | for(;;) { |
| 1263 | tb1 = *ptb; |
| 1264 | n1 = (long)tb1 & 3; |
| 1265 | tb1 = (TranslationBlock *)((long)tb1 & ~3); |
| 1266 | if (n1 == n && tb1 == tb) |
| 1267 | break; |
| 1268 | ptb = &tb1->jmp_next[n1]; |
| 1269 | } |
| 1270 | *ptb = tb->jmp_next[n]; |
| 1271 | tb->jmp_next[n] = NULL; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1272 | |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1273 | /* suppress the jump to next tb in generated code */ |
| 1274 | tb_reset_jump(tb, n); |
| 1275 | |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1276 | /* suppress jumps in the tb on which we could have jumped */ |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1277 | tb_reset_jump_recursive(tb_next); |
| 1278 | } |
| 1279 | } |
| 1280 | |
| 1281 | static void tb_reset_jump_recursive(TranslationBlock *tb) |
| 1282 | { |
| 1283 | tb_reset_jump_recursive2(tb, 0); |
| 1284 | tb_reset_jump_recursive2(tb, 1); |
| 1285 | } |
| 1286 | |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1287 | #if defined(TARGET_HAS_ICE) |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1288 | static void breakpoint_invalidate(CPUState *env, target_ulong pc) |
| 1289 | { |
j_mayer | 9b3c35e | 2007-04-07 11:21:28 +0000 | [diff] [blame] | 1290 | target_phys_addr_t addr; |
| 1291 | target_ulong pd; |
pbrook | c2f07f8 | 2006-04-08 17:14:56 +0000 | [diff] [blame] | 1292 | ram_addr_t ram_addr; |
| 1293 | PhysPageDesc *p; |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1294 | |
pbrook | c2f07f8 | 2006-04-08 17:14:56 +0000 | [diff] [blame] | 1295 | addr = cpu_get_phys_page_debug(env, pc); |
| 1296 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 1297 | if (!p) { |
| 1298 | pd = IO_MEM_UNASSIGNED; |
| 1299 | } else { |
| 1300 | pd = p->phys_offset; |
| 1301 | } |
| 1302 | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); |
pbrook | 706cd4b | 2006-04-08 17:36:21 +0000 | [diff] [blame] | 1303 | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1304 | } |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 1305 | #endif |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1306 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1307 | /* Add a watchpoint. */ |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1308 | int cpu_watchpoint_insert(CPUState *env, target_ulong addr, target_ulong len, |
| 1309 | int flags, CPUWatchpoint **watchpoint) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1310 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1311 | target_ulong len_mask = ~(len - 1); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1312 | CPUWatchpoint *wp; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1313 | |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1314 | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */ |
| 1315 | if ((len != 1 && len != 2 && len != 4 && len != 8) || (addr & ~len_mask)) { |
| 1316 | fprintf(stderr, "qemu: tried to set invalid watchpoint at " |
| 1317 | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
| 1318 | return -EINVAL; |
| 1319 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1320 | wp = qemu_malloc(sizeof(*wp)); |
| 1321 | if (!wp) |
aliguori | 426cd5d | 2008-11-18 21:52:54 +0000 | [diff] [blame] | 1322 | return -ENOMEM; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1323 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1324 | wp->vaddr = addr; |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1325 | wp->len_mask = len_mask; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1326 | wp->flags = flags; |
| 1327 | |
aliguori | 2dc9f41 | 2008-11-18 20:56:59 +0000 | [diff] [blame] | 1328 | /* keep all GDB-injected watchpoints in front */ |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1329 | if (flags & BP_GDB) |
| 1330 | TAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
| 1331 | else |
| 1332 | TAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1333 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1334 | tlb_flush_page(env, addr); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1335 | |
| 1336 | if (watchpoint) |
| 1337 | *watchpoint = wp; |
| 1338 | return 0; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1339 | } |
| 1340 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1341 | /* Remove a specific watchpoint. */ |
| 1342 | int cpu_watchpoint_remove(CPUState *env, target_ulong addr, target_ulong len, |
| 1343 | int flags) |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1344 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1345 | target_ulong len_mask = ~(len - 1); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1346 | CPUWatchpoint *wp; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1347 | |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1348 | TAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 1349 | if (addr == wp->vaddr && len_mask == wp->len_mask |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 1350 | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1351 | cpu_watchpoint_remove_by_ref(env, wp); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1352 | return 0; |
| 1353 | } |
| 1354 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1355 | return -ENOENT; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 1356 | } |
| 1357 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1358 | /* Remove a specific watchpoint by reference. */ |
| 1359 | void cpu_watchpoint_remove_by_ref(CPUState *env, CPUWatchpoint *watchpoint) |
| 1360 | { |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1361 | TAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 1362 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1363 | tlb_flush_page(env, watchpoint->vaddr); |
| 1364 | |
| 1365 | qemu_free(watchpoint); |
edgar_igl | 7d03f82 | 2008-05-17 18:58:29 +0000 | [diff] [blame] | 1366 | } |
| 1367 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1368 | /* Remove all matching watchpoints. */ |
| 1369 | void cpu_watchpoint_remove_all(CPUState *env, int mask) |
| 1370 | { |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1371 | CPUWatchpoint *wp, *next; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1372 | |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1373 | TAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1374 | if (wp->flags & mask) |
| 1375 | cpu_watchpoint_remove_by_ref(env, wp); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1376 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1377 | } |
| 1378 | |
| 1379 | /* Add a breakpoint. */ |
| 1380 | int cpu_breakpoint_insert(CPUState *env, target_ulong pc, int flags, |
| 1381 | CPUBreakpoint **breakpoint) |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1382 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1383 | #if defined(TARGET_HAS_ICE) |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1384 | CPUBreakpoint *bp; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1385 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1386 | bp = qemu_malloc(sizeof(*bp)); |
| 1387 | if (!bp) |
aliguori | 426cd5d | 2008-11-18 21:52:54 +0000 | [diff] [blame] | 1388 | return -ENOMEM; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1389 | |
| 1390 | bp->pc = pc; |
| 1391 | bp->flags = flags; |
| 1392 | |
aliguori | 2dc9f41 | 2008-11-18 20:56:59 +0000 | [diff] [blame] | 1393 | /* keep all GDB-injected breakpoints in front */ |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1394 | if (flags & BP_GDB) |
| 1395 | TAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
| 1396 | else |
| 1397 | TAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1398 | |
| 1399 | breakpoint_invalidate(env, pc); |
| 1400 | |
| 1401 | if (breakpoint) |
| 1402 | *breakpoint = bp; |
| 1403 | return 0; |
| 1404 | #else |
| 1405 | return -ENOSYS; |
| 1406 | #endif |
| 1407 | } |
| 1408 | |
| 1409 | /* Remove a specific breakpoint. */ |
| 1410 | int cpu_breakpoint_remove(CPUState *env, target_ulong pc, int flags) |
| 1411 | { |
| 1412 | #if defined(TARGET_HAS_ICE) |
| 1413 | CPUBreakpoint *bp; |
| 1414 | |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1415 | TAILQ_FOREACH(bp, &env->breakpoints, entry) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1416 | if (bp->pc == pc && bp->flags == flags) { |
| 1417 | cpu_breakpoint_remove_by_ref(env, bp); |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1418 | return 0; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1419 | } |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1420 | } |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1421 | return -ENOENT; |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1422 | #else |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1423 | return -ENOSYS; |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1424 | #endif |
| 1425 | } |
| 1426 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1427 | /* Remove a specific breakpoint by reference. */ |
| 1428 | void cpu_breakpoint_remove_by_ref(CPUState *env, CPUBreakpoint *breakpoint) |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1429 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1430 | #if defined(TARGET_HAS_ICE) |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1431 | TAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 1432 | |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1433 | breakpoint_invalidate(env, breakpoint->pc); |
| 1434 | |
| 1435 | qemu_free(breakpoint); |
| 1436 | #endif |
| 1437 | } |
| 1438 | |
| 1439 | /* Remove all matching breakpoints. */ |
| 1440 | void cpu_breakpoint_remove_all(CPUState *env, int mask) |
| 1441 | { |
| 1442 | #if defined(TARGET_HAS_ICE) |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1443 | CPUBreakpoint *bp, *next; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1444 | |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1445 | TAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1446 | if (bp->flags & mask) |
| 1447 | cpu_breakpoint_remove_by_ref(env, bp); |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 1448 | } |
bellard | 4c3a88a | 2003-07-26 12:06:08 +0000 | [diff] [blame] | 1449 | #endif |
| 1450 | } |
| 1451 | |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 1452 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
| 1453 | CPU loop after each instruction */ |
| 1454 | void cpu_single_step(CPUState *env, int enabled) |
| 1455 | { |
bellard | 1fddef4 | 2005-04-17 19:16:13 +0000 | [diff] [blame] | 1456 | #if defined(TARGET_HAS_ICE) |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 1457 | if (env->singlestep_enabled != enabled) { |
| 1458 | env->singlestep_enabled = enabled; |
| 1459 | /* must flush all the translated code to avoid inconsistancies */ |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1460 | /* XXX: only flush what is necessary */ |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1461 | tb_flush(env); |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 1462 | } |
| 1463 | #endif |
| 1464 | } |
| 1465 | |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 1466 | /* enable or disable low levels log */ |
| 1467 | void cpu_set_log(int log_flags) |
| 1468 | { |
| 1469 | loglevel = log_flags; |
| 1470 | if (loglevel && !logfile) { |
pbrook | 11fcfab | 2007-07-01 18:21:11 +0000 | [diff] [blame] | 1471 | logfile = fopen(logfilename, log_append ? "a" : "w"); |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 1472 | if (!logfile) { |
| 1473 | perror(logfilename); |
| 1474 | _exit(1); |
| 1475 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1476 | #if !defined(CONFIG_SOFTMMU) |
| 1477 | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */ |
| 1478 | { |
blueswir1 | b55266b | 2008-09-20 08:07:15 +0000 | [diff] [blame] | 1479 | static char logfile_buf[4096]; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1480 | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf)); |
| 1481 | } |
| 1482 | #else |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 1483 | setvbuf(logfile, NULL, _IOLBF, 0); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1484 | #endif |
pbrook | e735b91 | 2007-06-30 13:53:24 +0000 | [diff] [blame] | 1485 | log_append = 1; |
| 1486 | } |
| 1487 | if (!loglevel && logfile) { |
| 1488 | fclose(logfile); |
| 1489 | logfile = NULL; |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 1490 | } |
| 1491 | } |
| 1492 | |
| 1493 | void cpu_set_log_filename(const char *filename) |
| 1494 | { |
| 1495 | logfilename = strdup(filename); |
pbrook | e735b91 | 2007-06-30 13:53:24 +0000 | [diff] [blame] | 1496 | if (logfile) { |
| 1497 | fclose(logfile); |
| 1498 | logfile = NULL; |
| 1499 | } |
| 1500 | cpu_set_log(loglevel); |
bellard | 3486513 | 2003-10-05 14:28:56 +0000 | [diff] [blame] | 1501 | } |
bellard | c33a346 | 2003-07-29 20:50:33 +0000 | [diff] [blame] | 1502 | |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1503 | /* mask must never be zero, except for A20 change call */ |
bellard | 68a7931 | 2003-06-30 13:12:32 +0000 | [diff] [blame] | 1504 | void cpu_interrupt(CPUState *env, int mask) |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1505 | { |
pbrook | d597536 | 2008-06-07 20:50:51 +0000 | [diff] [blame] | 1506 | #if !defined(USE_NPTL) |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1507 | TranslationBlock *tb; |
aurel32 | 15a5115 | 2008-03-28 22:29:15 +0000 | [diff] [blame] | 1508 | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED; |
pbrook | d597536 | 2008-06-07 20:50:51 +0000 | [diff] [blame] | 1509 | #endif |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1510 | int old_mask; |
bellard | 59817cc | 2004-02-16 22:01:13 +0000 | [diff] [blame] | 1511 | |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1512 | old_mask = env->interrupt_request; |
pbrook | d597536 | 2008-06-07 20:50:51 +0000 | [diff] [blame] | 1513 | /* FIXME: This is probably not threadsafe. A different thread could |
ths | bf20dc0 | 2008-06-30 17:22:19 +0000 | [diff] [blame] | 1514 | be in the middle of a read-modify-write operation. */ |
bellard | 68a7931 | 2003-06-30 13:12:32 +0000 | [diff] [blame] | 1515 | env->interrupt_request |= mask; |
pbrook | d597536 | 2008-06-07 20:50:51 +0000 | [diff] [blame] | 1516 | #if defined(USE_NPTL) |
| 1517 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the |
| 1518 | problem and hope the cpu will stop of its own accord. For userspace |
| 1519 | emulation this often isn't actually as bad as it sounds. Often |
| 1520 | signals are used primarily to interrupt blocking syscalls. */ |
| 1521 | #else |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1522 | if (use_icount) { |
pbrook | 266910c | 2008-07-09 15:31:50 +0000 | [diff] [blame] | 1523 | env->icount_decr.u16.high = 0xffff; |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 1524 | #ifndef CONFIG_USER_ONLY |
| 1525 | /* CPU_INTERRUPT_EXIT isn't a real interrupt. It just means |
| 1526 | an async event happened and we need to process it. */ |
| 1527 | if (!can_do_io(env) |
| 1528 | && (mask & ~(old_mask | CPU_INTERRUPT_EXIT)) != 0) { |
| 1529 | cpu_abort(env, "Raised interrupt while not in I/O function"); |
| 1530 | } |
| 1531 | #endif |
| 1532 | } else { |
| 1533 | tb = env->current_tb; |
| 1534 | /* if the cpu is currently executing code, we must unlink it and |
| 1535 | all the potentially executing TB */ |
| 1536 | if (tb && !testandset(&interrupt_lock)) { |
| 1537 | env->current_tb = NULL; |
| 1538 | tb_reset_jump_recursive(tb); |
| 1539 | resetlock(&interrupt_lock); |
| 1540 | } |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1541 | } |
pbrook | d597536 | 2008-06-07 20:50:51 +0000 | [diff] [blame] | 1542 | #endif |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1543 | } |
| 1544 | |
bellard | b54ad04 | 2004-05-20 13:42:52 +0000 | [diff] [blame] | 1545 | void cpu_reset_interrupt(CPUState *env, int mask) |
| 1546 | { |
| 1547 | env->interrupt_request &= ~mask; |
| 1548 | } |
| 1549 | |
blueswir1 | c7cd6a3 | 2008-10-02 18:27:46 +0000 | [diff] [blame] | 1550 | const CPULogItem cpu_log_items[] = { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1551 | { CPU_LOG_TB_OUT_ASM, "out_asm", |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1552 | "show generated host assembly code for each compiled TB" }, |
| 1553 | { CPU_LOG_TB_IN_ASM, "in_asm", |
| 1554 | "show target assembly code for each compiled TB" }, |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1555 | { CPU_LOG_TB_OP, "op", |
bellard | 57fec1f | 2008-02-01 10:50:11 +0000 | [diff] [blame] | 1556 | "show micro ops for each compiled TB" }, |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1557 | { CPU_LOG_TB_OP_OPT, "op_opt", |
blueswir1 | e01a115 | 2008-03-14 17:37:11 +0000 | [diff] [blame] | 1558 | "show micro ops " |
| 1559 | #ifdef TARGET_I386 |
| 1560 | "before eflags optimization and " |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1561 | #endif |
blueswir1 | e01a115 | 2008-03-14 17:37:11 +0000 | [diff] [blame] | 1562 | "after liveness analysis" }, |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1563 | { CPU_LOG_INT, "int", |
| 1564 | "show interrupts/exceptions in short format" }, |
| 1565 | { CPU_LOG_EXEC, "exec", |
| 1566 | "show trace before each executed TB (lots of logs)" }, |
bellard | 9fddaa0 | 2004-05-21 12:59:32 +0000 | [diff] [blame] | 1567 | { CPU_LOG_TB_CPU, "cpu", |
ths | e91c8a7 | 2007-06-03 13:35:16 +0000 | [diff] [blame] | 1568 | "show CPU state before block translation" }, |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1569 | #ifdef TARGET_I386 |
| 1570 | { CPU_LOG_PCALL, "pcall", |
| 1571 | "show protected mode far calls/returns/exceptions" }, |
| 1572 | #endif |
bellard | 8e3a9fd | 2004-10-09 17:32:58 +0000 | [diff] [blame] | 1573 | #ifdef DEBUG_IOPORT |
bellard | fd87259 | 2004-05-12 19:11:15 +0000 | [diff] [blame] | 1574 | { CPU_LOG_IOPORT, "ioport", |
| 1575 | "show all i/o ports accesses" }, |
bellard | 8e3a9fd | 2004-10-09 17:32:58 +0000 | [diff] [blame] | 1576 | #endif |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1577 | { 0, NULL, NULL }, |
| 1578 | }; |
| 1579 | |
| 1580 | static int cmp1(const char *s1, int n, const char *s2) |
| 1581 | { |
| 1582 | if (strlen(s2) != n) |
| 1583 | return 0; |
| 1584 | return memcmp(s1, s2, n) == 0; |
| 1585 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1586 | |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1587 | /* takes a comma separated list of log masks. Return 0 if error. */ |
| 1588 | int cpu_str_to_log_mask(const char *str) |
| 1589 | { |
blueswir1 | c7cd6a3 | 2008-10-02 18:27:46 +0000 | [diff] [blame] | 1590 | const CPULogItem *item; |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1591 | int mask; |
| 1592 | const char *p, *p1; |
| 1593 | |
| 1594 | p = str; |
| 1595 | mask = 0; |
| 1596 | for(;;) { |
| 1597 | p1 = strchr(p, ','); |
| 1598 | if (!p1) |
| 1599 | p1 = p + strlen(p); |
bellard | 8e3a9fd | 2004-10-09 17:32:58 +0000 | [diff] [blame] | 1600 | if(cmp1(p,p1-p,"all")) { |
| 1601 | for(item = cpu_log_items; item->mask != 0; item++) { |
| 1602 | mask |= item->mask; |
| 1603 | } |
| 1604 | } else { |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1605 | for(item = cpu_log_items; item->mask != 0; item++) { |
| 1606 | if (cmp1(p, p1 - p, item->name)) |
| 1607 | goto found; |
| 1608 | } |
| 1609 | return 0; |
bellard | 8e3a9fd | 2004-10-09 17:32:58 +0000 | [diff] [blame] | 1610 | } |
bellard | f193c79 | 2004-03-21 17:06:25 +0000 | [diff] [blame] | 1611 | found: |
| 1612 | mask |= item->mask; |
| 1613 | if (*p1 != ',') |
| 1614 | break; |
| 1615 | p = p1 + 1; |
| 1616 | } |
| 1617 | return mask; |
| 1618 | } |
bellard | ea041c0 | 2003-06-25 16:16:50 +0000 | [diff] [blame] | 1619 | |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 1620 | void cpu_abort(CPUState *env, const char *fmt, ...) |
| 1621 | { |
| 1622 | va_list ap; |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 1623 | va_list ap2; |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 1624 | |
| 1625 | va_start(ap, fmt); |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 1626 | va_copy(ap2, ap); |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 1627 | fprintf(stderr, "qemu: fatal: "); |
| 1628 | vfprintf(stderr, fmt, ap); |
| 1629 | fprintf(stderr, "\n"); |
| 1630 | #ifdef TARGET_I386 |
bellard | 7fe4848 | 2004-10-09 18:08:01 +0000 | [diff] [blame] | 1631 | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
| 1632 | #else |
| 1633 | cpu_dump_state(env, stderr, fprintf, 0); |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 1634 | #endif |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 1635 | if (qemu_log_enabled()) { |
| 1636 | qemu_log("qemu: fatal: "); |
| 1637 | qemu_log_vprintf(fmt, ap2); |
| 1638 | qemu_log("\n"); |
j_mayer | f937329 | 2007-09-29 12:18:20 +0000 | [diff] [blame] | 1639 | #ifdef TARGET_I386 |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 1640 | log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP); |
j_mayer | f937329 | 2007-09-29 12:18:20 +0000 | [diff] [blame] | 1641 | #else |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 1642 | log_cpu_state(env, 0); |
j_mayer | f937329 | 2007-09-29 12:18:20 +0000 | [diff] [blame] | 1643 | #endif |
aliguori | 31b1a7b | 2009-01-15 22:35:09 +0000 | [diff] [blame] | 1644 | qemu_log_flush(); |
aliguori | 93fcfe3 | 2009-01-15 22:34:14 +0000 | [diff] [blame] | 1645 | qemu_log_close(); |
balrog | 924edca | 2007-06-10 14:07:13 +0000 | [diff] [blame] | 1646 | } |
pbrook | 493ae1f | 2007-11-23 16:53:59 +0000 | [diff] [blame] | 1647 | va_end(ap2); |
j_mayer | f937329 | 2007-09-29 12:18:20 +0000 | [diff] [blame] | 1648 | va_end(ap); |
bellard | 7501267 | 2003-06-21 13:11:07 +0000 | [diff] [blame] | 1649 | abort(); |
| 1650 | } |
| 1651 | |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 1652 | CPUState *cpu_copy(CPUState *env) |
| 1653 | { |
ths | 01ba981 | 2007-12-09 02:22:57 +0000 | [diff] [blame] | 1654 | CPUState *new_env = cpu_init(env->cpu_model_str); |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 1655 | CPUState *next_cpu = new_env->next_cpu; |
| 1656 | int cpu_index = new_env->cpu_index; |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 1657 | #if defined(TARGET_HAS_ICE) |
| 1658 | CPUBreakpoint *bp; |
| 1659 | CPUWatchpoint *wp; |
| 1660 | #endif |
| 1661 | |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 1662 | memcpy(new_env, env, sizeof(CPUState)); |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 1663 | |
| 1664 | /* Preserve chaining and index. */ |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 1665 | new_env->next_cpu = next_cpu; |
| 1666 | new_env->cpu_index = cpu_index; |
aliguori | 5a38f08 | 2009-01-15 20:16:51 +0000 | [diff] [blame] | 1667 | |
| 1668 | /* Clone all break/watchpoints. |
| 1669 | Note: Once we support ptrace with hw-debug register access, make sure |
| 1670 | BP_CPU break/watchpoints are handled correctly on clone. */ |
| 1671 | TAILQ_INIT(&env->breakpoints); |
| 1672 | TAILQ_INIT(&env->watchpoints); |
| 1673 | #if defined(TARGET_HAS_ICE) |
| 1674 | TAILQ_FOREACH(bp, &env->breakpoints, entry) { |
| 1675 | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL); |
| 1676 | } |
| 1677 | TAILQ_FOREACH(wp, &env->watchpoints, entry) { |
| 1678 | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, |
| 1679 | wp->flags, NULL); |
| 1680 | } |
| 1681 | #endif |
| 1682 | |
ths | c5be9f0 | 2007-02-28 20:20:53 +0000 | [diff] [blame] | 1683 | return new_env; |
| 1684 | } |
| 1685 | |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1686 | #if !defined(CONFIG_USER_ONLY) |
| 1687 | |
edgar_igl | 5c751e9 | 2008-05-06 08:44:21 +0000 | [diff] [blame] | 1688 | static inline void tlb_flush_jmp_cache(CPUState *env, target_ulong addr) |
| 1689 | { |
| 1690 | unsigned int i; |
| 1691 | |
| 1692 | /* Discard jump cache entries for any tb which might potentially |
| 1693 | overlap the flushed page. */ |
| 1694 | i = tb_jmp_cache_hash_page(addr - TARGET_PAGE_SIZE); |
| 1695 | memset (&env->tb_jmp_cache[i], 0, |
| 1696 | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *)); |
| 1697 | |
| 1698 | i = tb_jmp_cache_hash_page(addr); |
| 1699 | memset (&env->tb_jmp_cache[i], 0, |
| 1700 | TB_JMP_PAGE_SIZE * sizeof(TranslationBlock *)); |
| 1701 | } |
| 1702 | |
bellard | ee8b702 | 2004-02-03 23:35:10 +0000 | [diff] [blame] | 1703 | /* NOTE: if flush_global is true, also flush global entries (not |
| 1704 | implemented yet) */ |
| 1705 | void tlb_flush(CPUState *env, int flush_global) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1706 | { |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1707 | int i; |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1708 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1709 | #if defined(DEBUG_TLB) |
| 1710 | printf("tlb_flush:\n"); |
| 1711 | #endif |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1712 | /* must reset current TB so that interrupts cannot modify the |
| 1713 | links while we are modifying them */ |
| 1714 | env->current_tb = NULL; |
| 1715 | |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1716 | for(i = 0; i < CPU_TLB_SIZE; i++) { |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1717 | env->tlb_table[0][i].addr_read = -1; |
| 1718 | env->tlb_table[0][i].addr_write = -1; |
| 1719 | env->tlb_table[0][i].addr_code = -1; |
| 1720 | env->tlb_table[1][i].addr_read = -1; |
| 1721 | env->tlb_table[1][i].addr_write = -1; |
| 1722 | env->tlb_table[1][i].addr_code = -1; |
j_mayer | 6fa4cea | 2007-04-05 06:43:27 +0000 | [diff] [blame] | 1723 | #if (NB_MMU_MODES >= 3) |
| 1724 | env->tlb_table[2][i].addr_read = -1; |
| 1725 | env->tlb_table[2][i].addr_write = -1; |
| 1726 | env->tlb_table[2][i].addr_code = -1; |
| 1727 | #if (NB_MMU_MODES == 4) |
| 1728 | env->tlb_table[3][i].addr_read = -1; |
| 1729 | env->tlb_table[3][i].addr_write = -1; |
| 1730 | env->tlb_table[3][i].addr_code = -1; |
| 1731 | #endif |
| 1732 | #endif |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1733 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1734 | |
bellard | 8a40a18 | 2005-11-20 10:35:40 +0000 | [diff] [blame] | 1735 | memset (env->tb_jmp_cache, 0, TB_JMP_CACHE_SIZE * sizeof (void *)); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1736 | |
bellard | 0a962c0 | 2005-02-10 22:00:27 +0000 | [diff] [blame] | 1737 | #ifdef USE_KQEMU |
| 1738 | if (env->kqemu_enabled) { |
| 1739 | kqemu_flush(env, flush_global); |
| 1740 | } |
| 1741 | #endif |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 1742 | tlb_flush_count++; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1743 | } |
| 1744 | |
bellard | 274da6b | 2004-05-20 21:56:27 +0000 | [diff] [blame] | 1745 | static inline void tlb_flush_entry(CPUTLBEntry *tlb_entry, target_ulong addr) |
bellard | 61382a5 | 2003-10-27 21:22:23 +0000 | [diff] [blame] | 1746 | { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1747 | if (addr == (tlb_entry->addr_read & |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1748 | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1749 | addr == (tlb_entry->addr_write & |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1750 | (TARGET_PAGE_MASK | TLB_INVALID_MASK)) || |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1751 | addr == (tlb_entry->addr_code & |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1752 | (TARGET_PAGE_MASK | TLB_INVALID_MASK))) { |
| 1753 | tlb_entry->addr_read = -1; |
| 1754 | tlb_entry->addr_write = -1; |
| 1755 | tlb_entry->addr_code = -1; |
| 1756 | } |
bellard | 61382a5 | 2003-10-27 21:22:23 +0000 | [diff] [blame] | 1757 | } |
| 1758 | |
bellard | 2e12669 | 2004-04-25 21:28:44 +0000 | [diff] [blame] | 1759 | void tlb_flush_page(CPUState *env, target_ulong addr) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1760 | { |
bellard | 8a40a18 | 2005-11-20 10:35:40 +0000 | [diff] [blame] | 1761 | int i; |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1762 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1763 | #if defined(DEBUG_TLB) |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 1764 | printf("tlb_flush_page: " TARGET_FMT_lx "\n", addr); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1765 | #endif |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1766 | /* must reset current TB so that interrupts cannot modify the |
| 1767 | links while we are modifying them */ |
| 1768 | env->current_tb = NULL; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1769 | |
bellard | 61382a5 | 2003-10-27 21:22:23 +0000 | [diff] [blame] | 1770 | addr &= TARGET_PAGE_MASK; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 1771 | i = (addr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1772 | tlb_flush_entry(&env->tlb_table[0][i], addr); |
| 1773 | tlb_flush_entry(&env->tlb_table[1][i], addr); |
j_mayer | 6fa4cea | 2007-04-05 06:43:27 +0000 | [diff] [blame] | 1774 | #if (NB_MMU_MODES >= 3) |
| 1775 | tlb_flush_entry(&env->tlb_table[2][i], addr); |
| 1776 | #if (NB_MMU_MODES == 4) |
| 1777 | tlb_flush_entry(&env->tlb_table[3][i], addr); |
| 1778 | #endif |
| 1779 | #endif |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 1780 | |
edgar_igl | 5c751e9 | 2008-05-06 08:44:21 +0000 | [diff] [blame] | 1781 | tlb_flush_jmp_cache(env, addr); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1782 | |
bellard | 0a962c0 | 2005-02-10 22:00:27 +0000 | [diff] [blame] | 1783 | #ifdef USE_KQEMU |
| 1784 | if (env->kqemu_enabled) { |
| 1785 | kqemu_flush_page(env, addr); |
| 1786 | } |
| 1787 | #endif |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1788 | } |
| 1789 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1790 | /* update the TLBs so that writes to code in the virtual page 'addr' |
| 1791 | can be detected */ |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1792 | static void tlb_protect_code(ram_addr_t ram_addr) |
bellard | 61382a5 | 2003-10-27 21:22:23 +0000 | [diff] [blame] | 1793 | { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1794 | cpu_physical_memory_reset_dirty(ram_addr, |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1795 | ram_addr + TARGET_PAGE_SIZE, |
| 1796 | CODE_DIRTY_FLAG); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1797 | } |
| 1798 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1799 | /* update the TLB so that writes in physical page 'phys_addr' are no longer |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1800 | tested for self modifying code */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1801 | static void tlb_unprotect_code_phys(CPUState *env, ram_addr_t ram_addr, |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1802 | target_ulong vaddr) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1803 | { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1804 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] |= CODE_DIRTY_FLAG; |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1805 | } |
| 1806 | |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1807 | static inline void tlb_reset_dirty_range(CPUTLBEntry *tlb_entry, |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1808 | unsigned long start, unsigned long length) |
| 1809 | { |
| 1810 | unsigned long addr; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1811 | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
| 1812 | addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + tlb_entry->addend; |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1813 | if ((addr - start) < length) { |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1814 | tlb_entry->addr_write = (tlb_entry->addr_write & TARGET_PAGE_MASK) | TLB_NOTDIRTY; |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1815 | } |
| 1816 | } |
| 1817 | } |
| 1818 | |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1819 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
bellard | 0a962c0 | 2005-02-10 22:00:27 +0000 | [diff] [blame] | 1820 | int dirty_flags) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1821 | { |
| 1822 | CPUState *env; |
bellard | 4f2ac23 | 2004-04-26 19:44:02 +0000 | [diff] [blame] | 1823 | unsigned long length, start1; |
bellard | 0a962c0 | 2005-02-10 22:00:27 +0000 | [diff] [blame] | 1824 | int i, mask, len; |
| 1825 | uint8_t *p; |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1826 | |
| 1827 | start &= TARGET_PAGE_MASK; |
| 1828 | end = TARGET_PAGE_ALIGN(end); |
| 1829 | |
| 1830 | length = end - start; |
| 1831 | if (length == 0) |
| 1832 | return; |
bellard | 0a962c0 | 2005-02-10 22:00:27 +0000 | [diff] [blame] | 1833 | len = length >> TARGET_PAGE_BITS; |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1834 | #ifdef USE_KQEMU |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1835 | /* XXX: should not depend on cpu context */ |
| 1836 | env = first_cpu; |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1837 | if (env->kqemu_enabled) { |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 1838 | ram_addr_t addr; |
| 1839 | addr = start; |
| 1840 | for(i = 0; i < len; i++) { |
| 1841 | kqemu_set_notdirty(env, addr); |
| 1842 | addr += TARGET_PAGE_SIZE; |
| 1843 | } |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1844 | } |
| 1845 | #endif |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 1846 | mask = ~dirty_flags; |
| 1847 | p = phys_ram_dirty + (start >> TARGET_PAGE_BITS); |
| 1848 | for(i = 0; i < len; i++) |
| 1849 | p[i] &= mask; |
| 1850 | |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1851 | /* we modify the TLB cache so that the dirty bit will be set again |
| 1852 | when accessing the range */ |
bellard | 59817cc | 2004-02-16 22:01:13 +0000 | [diff] [blame] | 1853 | start1 = start + (unsigned long)phys_ram_base; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1854 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1855 | for(i = 0; i < CPU_TLB_SIZE; i++) |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1856 | tlb_reset_dirty_range(&env->tlb_table[0][i], start1, length); |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1857 | for(i = 0; i < CPU_TLB_SIZE; i++) |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1858 | tlb_reset_dirty_range(&env->tlb_table[1][i], start1, length); |
j_mayer | 6fa4cea | 2007-04-05 06:43:27 +0000 | [diff] [blame] | 1859 | #if (NB_MMU_MODES >= 3) |
| 1860 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 1861 | tlb_reset_dirty_range(&env->tlb_table[2][i], start1, length); |
| 1862 | #if (NB_MMU_MODES == 4) |
| 1863 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 1864 | tlb_reset_dirty_range(&env->tlb_table[3][i], start1, length); |
| 1865 | #endif |
| 1866 | #endif |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 1867 | } |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1868 | } |
| 1869 | |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 1870 | int cpu_physical_memory_set_dirty_tracking(int enable) |
| 1871 | { |
| 1872 | in_migration = enable; |
| 1873 | return 0; |
| 1874 | } |
| 1875 | |
| 1876 | int cpu_physical_memory_get_dirty_tracking(void) |
| 1877 | { |
| 1878 | return in_migration; |
| 1879 | } |
| 1880 | |
aliguori | 2bec46d | 2008-11-24 20:21:41 +0000 | [diff] [blame] | 1881 | void cpu_physical_sync_dirty_bitmap(target_phys_addr_t start_addr, target_phys_addr_t end_addr) |
| 1882 | { |
| 1883 | if (kvm_enabled()) |
| 1884 | kvm_physical_sync_dirty_bitmap(start_addr, end_addr); |
| 1885 | } |
| 1886 | |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1887 | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
| 1888 | { |
| 1889 | ram_addr_t ram_addr; |
| 1890 | |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1891 | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1892 | ram_addr = (tlb_entry->addr_write & TARGET_PAGE_MASK) + |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1893 | tlb_entry->addend - (unsigned long)phys_ram_base; |
| 1894 | if (!cpu_physical_memory_is_dirty(ram_addr)) { |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1895 | tlb_entry->addr_write |= TLB_NOTDIRTY; |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1896 | } |
| 1897 | } |
| 1898 | } |
| 1899 | |
| 1900 | /* update the TLB according to the current state of the dirty bits */ |
| 1901 | void cpu_tlb_update_dirty(CPUState *env) |
| 1902 | { |
| 1903 | int i; |
| 1904 | for(i = 0; i < CPU_TLB_SIZE; i++) |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1905 | tlb_update_dirty(&env->tlb_table[0][i]); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1906 | for(i = 0; i < CPU_TLB_SIZE; i++) |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1907 | tlb_update_dirty(&env->tlb_table[1][i]); |
j_mayer | 6fa4cea | 2007-04-05 06:43:27 +0000 | [diff] [blame] | 1908 | #if (NB_MMU_MODES >= 3) |
| 1909 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 1910 | tlb_update_dirty(&env->tlb_table[2][i]); |
| 1911 | #if (NB_MMU_MODES == 4) |
| 1912 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 1913 | tlb_update_dirty(&env->tlb_table[3][i]); |
| 1914 | #endif |
| 1915 | #endif |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 1916 | } |
| 1917 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1918 | static inline void tlb_set_dirty1(CPUTLBEntry *tlb_entry, target_ulong vaddr) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1919 | { |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1920 | if (tlb_entry->addr_write == (vaddr | TLB_NOTDIRTY)) |
| 1921 | tlb_entry->addr_write = vaddr; |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1922 | } |
| 1923 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1924 | /* update the TLB corresponding to virtual page vaddr |
| 1925 | so that it is no longer dirty */ |
| 1926 | static inline void tlb_set_dirty(CPUState *env, target_ulong vaddr) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1927 | { |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1928 | int i; |
| 1929 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1930 | vaddr &= TARGET_PAGE_MASK; |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 1931 | i = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1932 | tlb_set_dirty1(&env->tlb_table[0][i], vaddr); |
| 1933 | tlb_set_dirty1(&env->tlb_table[1][i], vaddr); |
j_mayer | 6fa4cea | 2007-04-05 06:43:27 +0000 | [diff] [blame] | 1934 | #if (NB_MMU_MODES >= 3) |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1935 | tlb_set_dirty1(&env->tlb_table[2][i], vaddr); |
j_mayer | 6fa4cea | 2007-04-05 06:43:27 +0000 | [diff] [blame] | 1936 | #if (NB_MMU_MODES == 4) |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1937 | tlb_set_dirty1(&env->tlb_table[3][i], vaddr); |
j_mayer | 6fa4cea | 2007-04-05 06:43:27 +0000 | [diff] [blame] | 1938 | #endif |
| 1939 | #endif |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1940 | } |
| 1941 | |
bellard | 59817cc | 2004-02-16 22:01:13 +0000 | [diff] [blame] | 1942 | /* add a new TLB entry. At most one entry for a given virtual address |
| 1943 | is permitted. Return 0 if OK or 2 if the page could not be mapped |
| 1944 | (can only happen in non SOFTMMU mode for I/O pages or pages |
| 1945 | conflicting with the host address space). */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1946 | int tlb_set_page_exec(CPUState *env, target_ulong vaddr, |
| 1947 | target_phys_addr_t paddr, int prot, |
j_mayer | 6ebbf39 | 2007-10-14 07:07:08 +0000 | [diff] [blame] | 1948 | int mmu_idx, int is_softmmu) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1949 | { |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 1950 | PhysPageDesc *p; |
bellard | 4f2ac23 | 2004-04-26 19:44:02 +0000 | [diff] [blame] | 1951 | unsigned long pd; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1952 | unsigned int index; |
bellard | 4f2ac23 | 2004-04-26 19:44:02 +0000 | [diff] [blame] | 1953 | target_ulong address; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1954 | target_ulong code_address; |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 1955 | target_phys_addr_t addend; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1956 | int ret; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 1957 | CPUTLBEntry *te; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 1958 | CPUWatchpoint *wp; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1959 | target_phys_addr_t iotlb; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1960 | |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 1961 | p = phys_page_find(paddr >> TARGET_PAGE_BITS); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1962 | if (!p) { |
| 1963 | pd = IO_MEM_UNASSIGNED; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1964 | } else { |
| 1965 | pd = p->phys_offset; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1966 | } |
| 1967 | #if defined(DEBUG_TLB) |
j_mayer | 6ebbf39 | 2007-10-14 07:07:08 +0000 | [diff] [blame] | 1968 | printf("tlb_set_page: vaddr=" TARGET_FMT_lx " paddr=0x%08x prot=%x idx=%d smmu=%d pd=0x%08lx\n", |
| 1969 | vaddr, (int)paddr, prot, mmu_idx, is_softmmu, pd); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 1970 | #endif |
| 1971 | |
| 1972 | ret = 0; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1973 | address = vaddr; |
| 1974 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && !(pd & IO_MEM_ROMD)) { |
| 1975 | /* IO memory case (romd handled later) */ |
| 1976 | address |= TLB_MMIO; |
| 1977 | } |
| 1978 | addend = (unsigned long)phys_ram_base + (pd & TARGET_PAGE_MASK); |
| 1979 | if ((pd & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) { |
| 1980 | /* Normal RAM. */ |
| 1981 | iotlb = pd & TARGET_PAGE_MASK; |
| 1982 | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM) |
| 1983 | iotlb |= IO_MEM_NOTDIRTY; |
| 1984 | else |
| 1985 | iotlb |= IO_MEM_ROM; |
| 1986 | } else { |
| 1987 | /* IO handlers are currently passed a phsical address. |
| 1988 | It would be nice to pass an offset from the base address |
| 1989 | of that region. This would avoid having to special case RAM, |
| 1990 | and avoid full address decoding in every device. |
| 1991 | We can't use the high bits of pd for this because |
| 1992 | IO_MEM_ROMD uses these as a ram address. */ |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 1993 | iotlb = (pd & ~TARGET_PAGE_MASK); |
| 1994 | if (p) { |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 1995 | iotlb += p->region_offset; |
| 1996 | } else { |
| 1997 | iotlb += paddr; |
| 1998 | } |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 1999 | } |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2000 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2001 | code_address = address; |
| 2002 | /* Make accesses to pages with watchpoints go via the |
| 2003 | watchpoint trap routines. */ |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 2004 | TAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 2005 | if (vaddr == (wp->vaddr & TARGET_PAGE_MASK)) { |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2006 | iotlb = io_mem_watch + paddr; |
| 2007 | /* TODO: The memory case can be optimized by not trapping |
| 2008 | reads of pages with a write breakpoint. */ |
| 2009 | address |= TLB_MMIO; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2010 | } |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2011 | } |
balrog | d79acba | 2007-06-26 20:01:13 +0000 | [diff] [blame] | 2012 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2013 | index = (vaddr >> TARGET_PAGE_BITS) & (CPU_TLB_SIZE - 1); |
| 2014 | env->iotlb[mmu_idx][index] = iotlb - vaddr; |
| 2015 | te = &env->tlb_table[mmu_idx][index]; |
| 2016 | te->addend = addend - vaddr; |
| 2017 | if (prot & PAGE_READ) { |
| 2018 | te->addr_read = address; |
| 2019 | } else { |
| 2020 | te->addr_read = -1; |
| 2021 | } |
edgar_igl | 5c751e9 | 2008-05-06 08:44:21 +0000 | [diff] [blame] | 2022 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2023 | if (prot & PAGE_EXEC) { |
| 2024 | te->addr_code = code_address; |
| 2025 | } else { |
| 2026 | te->addr_code = -1; |
| 2027 | } |
| 2028 | if (prot & PAGE_WRITE) { |
| 2029 | if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_ROM || |
| 2030 | (pd & IO_MEM_ROMD)) { |
| 2031 | /* Write access calls the I/O callback. */ |
| 2032 | te->addr_write = address | TLB_MMIO; |
| 2033 | } else if ((pd & ~TARGET_PAGE_MASK) == IO_MEM_RAM && |
| 2034 | !cpu_physical_memory_is_dirty(pd)) { |
| 2035 | te->addr_write = address | TLB_NOTDIRTY; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 2036 | } else { |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2037 | te->addr_write = address; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2038 | } |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2039 | } else { |
| 2040 | te->addr_write = -1; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2041 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2042 | return ret; |
| 2043 | } |
| 2044 | |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 2045 | #else |
| 2046 | |
bellard | ee8b702 | 2004-02-03 23:35:10 +0000 | [diff] [blame] | 2047 | void tlb_flush(CPUState *env, int flush_global) |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 2048 | { |
| 2049 | } |
| 2050 | |
bellard | 2e12669 | 2004-04-25 21:28:44 +0000 | [diff] [blame] | 2051 | void tlb_flush_page(CPUState *env, target_ulong addr) |
bellard | 0124311 | 2004-01-04 15:48:17 +0000 | [diff] [blame] | 2052 | { |
| 2053 | } |
| 2054 | |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2055 | int tlb_set_page_exec(CPUState *env, target_ulong vaddr, |
| 2056 | target_phys_addr_t paddr, int prot, |
j_mayer | 6ebbf39 | 2007-10-14 07:07:08 +0000 | [diff] [blame] | 2057 | int mmu_idx, int is_softmmu) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2058 | { |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2059 | return 0; |
| 2060 | } |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2061 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2062 | /* dump memory mappings */ |
| 2063 | void page_dump(FILE *f) |
| 2064 | { |
| 2065 | unsigned long start, end; |
| 2066 | int i, j, prot, prot1; |
| 2067 | PageDesc *p; |
| 2068 | |
| 2069 | fprintf(f, "%-8s %-8s %-8s %s\n", |
| 2070 | "start", "end", "size", "prot"); |
| 2071 | start = -1; |
| 2072 | end = -1; |
| 2073 | prot = 0; |
| 2074 | for(i = 0; i <= L1_SIZE; i++) { |
| 2075 | if (i < L1_SIZE) |
| 2076 | p = l1_map[i]; |
| 2077 | else |
| 2078 | p = NULL; |
| 2079 | for(j = 0;j < L2_SIZE; j++) { |
| 2080 | if (!p) |
| 2081 | prot1 = 0; |
| 2082 | else |
| 2083 | prot1 = p[j].flags; |
| 2084 | if (prot1 != prot) { |
| 2085 | end = (i << (32 - L1_BITS)) | (j << TARGET_PAGE_BITS); |
| 2086 | if (start != -1) { |
| 2087 | fprintf(f, "%08lx-%08lx %08lx %c%c%c\n", |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2088 | start, end, end - start, |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2089 | prot & PAGE_READ ? 'r' : '-', |
| 2090 | prot & PAGE_WRITE ? 'w' : '-', |
| 2091 | prot & PAGE_EXEC ? 'x' : '-'); |
| 2092 | } |
| 2093 | if (prot1 != 0) |
| 2094 | start = end; |
| 2095 | else |
| 2096 | start = -1; |
| 2097 | prot = prot1; |
| 2098 | } |
| 2099 | if (!p) |
| 2100 | break; |
| 2101 | } |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2102 | } |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2103 | } |
| 2104 | |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 2105 | int page_get_flags(target_ulong address) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2106 | { |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2107 | PageDesc *p; |
| 2108 | |
| 2109 | p = page_find(address >> TARGET_PAGE_BITS); |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2110 | if (!p) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2111 | return 0; |
| 2112 | return p->flags; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2113 | } |
| 2114 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2115 | /* modify the flags of a page and invalidate the code if |
| 2116 | necessary. The flag PAGE_WRITE_ORG is positionned automatically |
| 2117 | depending on PAGE_WRITE */ |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 2118 | void page_set_flags(target_ulong start, target_ulong end, int flags) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2119 | { |
| 2120 | PageDesc *p; |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 2121 | target_ulong addr; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2122 | |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 2123 | /* mmap_lock should already be held. */ |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2124 | start = start & TARGET_PAGE_MASK; |
| 2125 | end = TARGET_PAGE_ALIGN(end); |
| 2126 | if (flags & PAGE_WRITE) |
| 2127 | flags |= PAGE_WRITE_ORG; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2128 | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) { |
| 2129 | p = page_find_alloc(addr >> TARGET_PAGE_BITS); |
pbrook | 17e2377 | 2008-06-09 13:47:45 +0000 | [diff] [blame] | 2130 | /* We may be called for host regions that are outside guest |
| 2131 | address space. */ |
| 2132 | if (!p) |
| 2133 | return; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2134 | /* if the write protection is set, then we invalidate the code |
| 2135 | inside */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2136 | if (!(p->flags & PAGE_WRITE) && |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2137 | (flags & PAGE_WRITE) && |
| 2138 | p->first_tb) { |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 2139 | tb_invalidate_phys_page(addr, 0, NULL); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2140 | } |
| 2141 | p->flags = flags; |
| 2142 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2143 | } |
| 2144 | |
ths | 3d97b40 | 2007-11-02 19:02:07 +0000 | [diff] [blame] | 2145 | int page_check_range(target_ulong start, target_ulong len, int flags) |
| 2146 | { |
| 2147 | PageDesc *p; |
| 2148 | target_ulong end; |
| 2149 | target_ulong addr; |
| 2150 | |
balrog | 55f280c | 2008-10-28 10:24:11 +0000 | [diff] [blame] | 2151 | if (start + len < start) |
| 2152 | /* we've wrapped around */ |
| 2153 | return -1; |
| 2154 | |
ths | 3d97b40 | 2007-11-02 19:02:07 +0000 | [diff] [blame] | 2155 | end = TARGET_PAGE_ALIGN(start+len); /* must do before we loose bits in the next step */ |
| 2156 | start = start & TARGET_PAGE_MASK; |
| 2157 | |
ths | 3d97b40 | 2007-11-02 19:02:07 +0000 | [diff] [blame] | 2158 | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) { |
| 2159 | p = page_find(addr >> TARGET_PAGE_BITS); |
| 2160 | if( !p ) |
| 2161 | return -1; |
| 2162 | if( !(p->flags & PAGE_VALID) ) |
| 2163 | return -1; |
| 2164 | |
bellard | dae3270 | 2007-11-14 10:51:00 +0000 | [diff] [blame] | 2165 | if ((flags & PAGE_READ) && !(p->flags & PAGE_READ)) |
ths | 3d97b40 | 2007-11-02 19:02:07 +0000 | [diff] [blame] | 2166 | return -1; |
bellard | dae3270 | 2007-11-14 10:51:00 +0000 | [diff] [blame] | 2167 | if (flags & PAGE_WRITE) { |
| 2168 | if (!(p->flags & PAGE_WRITE_ORG)) |
| 2169 | return -1; |
| 2170 | /* unprotect the page if it was put read-only because it |
| 2171 | contains translated code */ |
| 2172 | if (!(p->flags & PAGE_WRITE)) { |
| 2173 | if (!page_unprotect(addr, 0, NULL)) |
| 2174 | return -1; |
| 2175 | } |
| 2176 | return 0; |
| 2177 | } |
ths | 3d97b40 | 2007-11-02 19:02:07 +0000 | [diff] [blame] | 2178 | } |
| 2179 | return 0; |
| 2180 | } |
| 2181 | |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2182 | /* called from signal handler: invalidate the code and unprotect the |
| 2183 | page. Return TRUE if the fault was succesfully handled. */ |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 2184 | int page_unprotect(target_ulong address, unsigned long pc, void *puc) |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2185 | { |
| 2186 | unsigned int page_index, prot, pindex; |
| 2187 | PageDesc *p, *p1; |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 2188 | target_ulong host_start, host_end, addr; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2189 | |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 2190 | /* Technically this isn't safe inside a signal handler. However we |
| 2191 | know this only ever happens in a synchronous SEGV handler, so in |
| 2192 | practice it seems to be ok. */ |
| 2193 | mmap_lock(); |
| 2194 | |
bellard | 83fb7ad | 2004-07-05 21:25:26 +0000 | [diff] [blame] | 2195 | host_start = address & qemu_host_page_mask; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2196 | page_index = host_start >> TARGET_PAGE_BITS; |
| 2197 | p1 = page_find(page_index); |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 2198 | if (!p1) { |
| 2199 | mmap_unlock(); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2200 | return 0; |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 2201 | } |
bellard | 83fb7ad | 2004-07-05 21:25:26 +0000 | [diff] [blame] | 2202 | host_end = host_start + qemu_host_page_size; |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2203 | p = p1; |
| 2204 | prot = 0; |
| 2205 | for(addr = host_start;addr < host_end; addr += TARGET_PAGE_SIZE) { |
| 2206 | prot |= p->flags; |
| 2207 | p++; |
| 2208 | } |
| 2209 | /* if the page was really writable, then we change its |
| 2210 | protection back to writable */ |
| 2211 | if (prot & PAGE_WRITE_ORG) { |
| 2212 | pindex = (address - host_start) >> TARGET_PAGE_BITS; |
| 2213 | if (!(p1[pindex].flags & PAGE_WRITE)) { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2214 | mprotect((void *)g2h(host_start), qemu_host_page_size, |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2215 | (prot & PAGE_BITS) | PAGE_WRITE); |
| 2216 | p1[pindex].flags |= PAGE_WRITE; |
| 2217 | /* and since the content will be modified, we must invalidate |
| 2218 | the corresponding translated code. */ |
bellard | d720b93 | 2004-04-25 17:57:43 +0000 | [diff] [blame] | 2219 | tb_invalidate_phys_page(address, pc, puc); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2220 | #ifdef DEBUG_TB_CHECK |
| 2221 | tb_invalidate_check(address); |
| 2222 | #endif |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 2223 | mmap_unlock(); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2224 | return 1; |
| 2225 | } |
| 2226 | } |
pbrook | c8a706f | 2008-06-02 16:16:42 +0000 | [diff] [blame] | 2227 | mmap_unlock(); |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2228 | return 0; |
| 2229 | } |
| 2230 | |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 2231 | static inline void tlb_set_dirty(CPUState *env, |
| 2232 | unsigned long addr, target_ulong vaddr) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2233 | { |
| 2234 | } |
bellard | 9fa3e85 | 2004-01-04 18:06:42 +0000 | [diff] [blame] | 2235 | #endif /* defined(CONFIG_USER_ONLY) */ |
| 2236 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 2237 | #if !defined(CONFIG_USER_ONLY) |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2238 | |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2239 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2240 | ram_addr_t memory, ram_addr_t region_offset); |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 2241 | static void *subpage_init (target_phys_addr_t base, ram_addr_t *phys, |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2242 | ram_addr_t orig_memory, ram_addr_t region_offset); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2243 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \ |
| 2244 | need_subpage) \ |
| 2245 | do { \ |
| 2246 | if (addr > start_addr) \ |
| 2247 | start_addr2 = 0; \ |
| 2248 | else { \ |
| 2249 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
| 2250 | if (start_addr2 > 0) \ |
| 2251 | need_subpage = 1; \ |
| 2252 | } \ |
| 2253 | \ |
blueswir1 | 49e9fba | 2007-05-30 17:25:06 +0000 | [diff] [blame] | 2254 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \ |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2255 | end_addr2 = TARGET_PAGE_SIZE - 1; \ |
| 2256 | else { \ |
| 2257 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \ |
| 2258 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
| 2259 | need_subpage = 1; \ |
| 2260 | } \ |
| 2261 | } while (0) |
| 2262 | |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2263 | /* register physical memory. 'size' must be a multiple of the target |
| 2264 | page size. If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2265 | io memory page. The address used when calling the IO function is |
| 2266 | the offset from the start of the region, plus region_offset. Both |
| 2267 | start_region and regon_offset are rounded down to a page boundary |
| 2268 | before calculating this offset. This should not be a problem unless |
| 2269 | the low bits of start_addr and region_offset differ. */ |
| 2270 | void cpu_register_physical_memory_offset(target_phys_addr_t start_addr, |
| 2271 | ram_addr_t size, |
| 2272 | ram_addr_t phys_offset, |
| 2273 | ram_addr_t region_offset) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2274 | { |
bellard | 108c49b | 2005-07-24 12:55:09 +0000 | [diff] [blame] | 2275 | target_phys_addr_t addr, end_addr; |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 2276 | PhysPageDesc *p; |
bellard | 9d42037 | 2006-06-25 22:25:22 +0000 | [diff] [blame] | 2277 | CPUState *env; |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 2278 | ram_addr_t orig_size = size; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2279 | void *subpage; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2280 | |
bellard | da26024 | 2008-05-30 20:48:25 +0000 | [diff] [blame] | 2281 | #ifdef USE_KQEMU |
| 2282 | /* XXX: should not depend on cpu context */ |
| 2283 | env = first_cpu; |
| 2284 | if (env->kqemu_enabled) { |
| 2285 | kqemu_set_phys_mem(start_addr, size, phys_offset); |
| 2286 | } |
| 2287 | #endif |
aliguori | 7ba1e61 | 2008-11-05 16:04:33 +0000 | [diff] [blame] | 2288 | if (kvm_enabled()) |
| 2289 | kvm_set_phys_mem(start_addr, size, phys_offset); |
| 2290 | |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2291 | region_offset &= TARGET_PAGE_MASK; |
bellard | 5fd386f | 2004-05-23 21:11:22 +0000 | [diff] [blame] | 2292 | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; |
blueswir1 | 49e9fba | 2007-05-30 17:25:06 +0000 | [diff] [blame] | 2293 | end_addr = start_addr + (target_phys_addr_t)size; |
| 2294 | for(addr = start_addr; addr != end_addr; addr += TARGET_PAGE_SIZE) { |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2295 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2296 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) { |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 2297 | ram_addr_t orig_memory = p->phys_offset; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2298 | target_phys_addr_t start_addr2, end_addr2; |
| 2299 | int need_subpage = 0; |
| 2300 | |
| 2301 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
| 2302 | need_subpage); |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2303 | if (need_subpage || phys_offset & IO_MEM_SUBWIDTH) { |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2304 | if (!(orig_memory & IO_MEM_SUBPAGE)) { |
| 2305 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2306 | &p->phys_offset, orig_memory, |
| 2307 | p->region_offset); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2308 | } else { |
| 2309 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
| 2310 | >> IO_MEM_SHIFT]; |
| 2311 | } |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2312 | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
| 2313 | region_offset); |
| 2314 | p->region_offset = 0; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2315 | } else { |
| 2316 | p->phys_offset = phys_offset; |
| 2317 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
| 2318 | (phys_offset & IO_MEM_ROMD)) |
| 2319 | phys_offset += TARGET_PAGE_SIZE; |
| 2320 | } |
| 2321 | } else { |
| 2322 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); |
| 2323 | p->phys_offset = phys_offset; |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2324 | p->region_offset = region_offset; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2325 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2326 | (phys_offset & IO_MEM_ROMD)) { |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2327 | phys_offset += TARGET_PAGE_SIZE; |
pbrook | 0e8f096 | 2008-12-02 09:02:15 +0000 | [diff] [blame] | 2328 | } else { |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2329 | target_phys_addr_t start_addr2, end_addr2; |
| 2330 | int need_subpage = 0; |
| 2331 | |
| 2332 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
| 2333 | end_addr2, need_subpage); |
| 2334 | |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2335 | if (need_subpage || phys_offset & IO_MEM_SUBWIDTH) { |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2336 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2337 | &p->phys_offset, IO_MEM_UNASSIGNED, |
| 2338 | 0); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2339 | subpage_register(subpage, start_addr2, end_addr2, |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2340 | phys_offset, region_offset); |
| 2341 | p->region_offset = 0; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2342 | } |
| 2343 | } |
| 2344 | } |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2345 | region_offset += TARGET_PAGE_SIZE; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2346 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2347 | |
bellard | 9d42037 | 2006-06-25 22:25:22 +0000 | [diff] [blame] | 2348 | /* since each CPU stores ram addresses in its TLB cache, we must |
| 2349 | reset the modified entries */ |
| 2350 | /* XXX: slow ! */ |
| 2351 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 2352 | tlb_flush(env, 1); |
| 2353 | } |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2354 | } |
| 2355 | |
bellard | ba86345 | 2006-09-24 18:41:10 +0000 | [diff] [blame] | 2356 | /* XXX: temporary until new memory mapping API */ |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 2357 | ram_addr_t cpu_get_physical_page_desc(target_phys_addr_t addr) |
bellard | ba86345 | 2006-09-24 18:41:10 +0000 | [diff] [blame] | 2358 | { |
| 2359 | PhysPageDesc *p; |
| 2360 | |
| 2361 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2362 | if (!p) |
| 2363 | return IO_MEM_UNASSIGNED; |
| 2364 | return p->phys_offset; |
| 2365 | } |
| 2366 | |
aliguori | f65ed4c | 2008-12-09 20:09:57 +0000 | [diff] [blame] | 2367 | void qemu_register_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size) |
| 2368 | { |
| 2369 | if (kvm_enabled()) |
| 2370 | kvm_coalesce_mmio_region(addr, size); |
| 2371 | } |
| 2372 | |
| 2373 | void qemu_unregister_coalesced_mmio(target_phys_addr_t addr, ram_addr_t size) |
| 2374 | { |
| 2375 | if (kvm_enabled()) |
| 2376 | kvm_uncoalesce_mmio_region(addr, size); |
| 2377 | } |
| 2378 | |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 2379 | /* XXX: better than nothing */ |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 2380 | ram_addr_t qemu_ram_alloc(ram_addr_t size) |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 2381 | { |
| 2382 | ram_addr_t addr; |
balrog | 7fb4fdc | 2008-04-24 17:59:27 +0000 | [diff] [blame] | 2383 | if ((phys_ram_alloc_offset + size) > phys_ram_size) { |
ths | 012a704 | 2008-10-02 17:34:21 +0000 | [diff] [blame] | 2384 | fprintf(stderr, "Not enough memory (requested_size = %" PRIu64 ", max memory = %" PRIu64 ")\n", |
bellard | ed44146 | 2008-05-23 11:56:45 +0000 | [diff] [blame] | 2385 | (uint64_t)size, (uint64_t)phys_ram_size); |
bellard | e9a1ab1 | 2007-02-08 23:08:38 +0000 | [diff] [blame] | 2386 | abort(); |
| 2387 | } |
| 2388 | addr = phys_ram_alloc_offset; |
| 2389 | phys_ram_alloc_offset = TARGET_PAGE_ALIGN(phys_ram_alloc_offset + size); |
| 2390 | return addr; |
| 2391 | } |
| 2392 | |
| 2393 | void qemu_ram_free(ram_addr_t addr) |
| 2394 | { |
| 2395 | } |
| 2396 | |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2397 | static uint32_t unassigned_mem_readb(void *opaque, target_phys_addr_t addr) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2398 | { |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 2399 | #ifdef DEBUG_UNASSIGNED |
blueswir1 | ab3d172 | 2007-11-04 07:31:40 +0000 | [diff] [blame] | 2400 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 2401 | #endif |
edgar_igl | 0a6f8a6 | 2008-12-29 14:39:57 +0000 | [diff] [blame] | 2402 | #if defined(TARGET_SPARC) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2403 | do_unassigned_access(addr, 0, 0, 0, 1); |
| 2404 | #endif |
| 2405 | return 0; |
| 2406 | } |
| 2407 | |
| 2408 | static uint32_t unassigned_mem_readw(void *opaque, target_phys_addr_t addr) |
| 2409 | { |
| 2410 | #ifdef DEBUG_UNASSIGNED |
| 2411 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 2412 | #endif |
edgar_igl | 0a6f8a6 | 2008-12-29 14:39:57 +0000 | [diff] [blame] | 2413 | #if defined(TARGET_SPARC) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2414 | do_unassigned_access(addr, 0, 0, 0, 2); |
| 2415 | #endif |
| 2416 | return 0; |
| 2417 | } |
| 2418 | |
| 2419 | static uint32_t unassigned_mem_readl(void *opaque, target_phys_addr_t addr) |
| 2420 | { |
| 2421 | #ifdef DEBUG_UNASSIGNED |
| 2422 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 2423 | #endif |
edgar_igl | 0a6f8a6 | 2008-12-29 14:39:57 +0000 | [diff] [blame] | 2424 | #if defined(TARGET_SPARC) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2425 | do_unassigned_access(addr, 0, 0, 0, 4); |
blueswir1 | b4f0a31 | 2007-05-06 17:59:24 +0000 | [diff] [blame] | 2426 | #endif |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2427 | return 0; |
| 2428 | } |
| 2429 | |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2430 | static void unassigned_mem_writeb(void *opaque, target_phys_addr_t addr, uint32_t val) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2431 | { |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 2432 | #ifdef DEBUG_UNASSIGNED |
blueswir1 | ab3d172 | 2007-11-04 07:31:40 +0000 | [diff] [blame] | 2433 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
pbrook | 67d3b95 | 2006-12-18 05:03:52 +0000 | [diff] [blame] | 2434 | #endif |
edgar_igl | 0a6f8a6 | 2008-12-29 14:39:57 +0000 | [diff] [blame] | 2435 | #if defined(TARGET_SPARC) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2436 | do_unassigned_access(addr, 1, 0, 0, 1); |
| 2437 | #endif |
| 2438 | } |
| 2439 | |
| 2440 | static void unassigned_mem_writew(void *opaque, target_phys_addr_t addr, uint32_t val) |
| 2441 | { |
| 2442 | #ifdef DEBUG_UNASSIGNED |
| 2443 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 2444 | #endif |
edgar_igl | 0a6f8a6 | 2008-12-29 14:39:57 +0000 | [diff] [blame] | 2445 | #if defined(TARGET_SPARC) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2446 | do_unassigned_access(addr, 1, 0, 0, 2); |
| 2447 | #endif |
| 2448 | } |
| 2449 | |
| 2450 | static void unassigned_mem_writel(void *opaque, target_phys_addr_t addr, uint32_t val) |
| 2451 | { |
| 2452 | #ifdef DEBUG_UNASSIGNED |
| 2453 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 2454 | #endif |
edgar_igl | 0a6f8a6 | 2008-12-29 14:39:57 +0000 | [diff] [blame] | 2455 | #if defined(TARGET_SPARC) |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2456 | do_unassigned_access(addr, 1, 0, 0, 4); |
blueswir1 | b4f0a31 | 2007-05-06 17:59:24 +0000 | [diff] [blame] | 2457 | #endif |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2458 | } |
| 2459 | |
| 2460 | static CPUReadMemoryFunc *unassigned_mem_read[3] = { |
| 2461 | unassigned_mem_readb, |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2462 | unassigned_mem_readw, |
| 2463 | unassigned_mem_readl, |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2464 | }; |
| 2465 | |
| 2466 | static CPUWriteMemoryFunc *unassigned_mem_write[3] = { |
| 2467 | unassigned_mem_writeb, |
blueswir1 | e18231a | 2008-10-06 18:46:28 +0000 | [diff] [blame] | 2468 | unassigned_mem_writew, |
| 2469 | unassigned_mem_writel, |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2470 | }; |
| 2471 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2472 | static void notdirty_mem_writeb(void *opaque, target_phys_addr_t ram_addr, |
| 2473 | uint32_t val) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2474 | { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2475 | int dirty_flags; |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2476 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
| 2477 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 2478 | #if !defined(CONFIG_USER_ONLY) |
| 2479 | tb_invalidate_phys_page_fast(ram_addr, 1); |
| 2480 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
| 2481 | #endif |
| 2482 | } |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2483 | stb_p(phys_ram_base + ram_addr, val); |
bellard | f32fc64 | 2006-02-08 22:43:39 +0000 | [diff] [blame] | 2484 | #ifdef USE_KQEMU |
| 2485 | if (cpu_single_env->kqemu_enabled && |
| 2486 | (dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK) |
| 2487 | kqemu_modify_page(cpu_single_env, ram_addr); |
| 2488 | #endif |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 2489 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
| 2490 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
| 2491 | /* we remove the notdirty callback only if the code has been |
| 2492 | flushed */ |
| 2493 | if (dirty_flags == 0xff) |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 2494 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2495 | } |
| 2496 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2497 | static void notdirty_mem_writew(void *opaque, target_phys_addr_t ram_addr, |
| 2498 | uint32_t val) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2499 | { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2500 | int dirty_flags; |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2501 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
| 2502 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 2503 | #if !defined(CONFIG_USER_ONLY) |
| 2504 | tb_invalidate_phys_page_fast(ram_addr, 2); |
| 2505 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
| 2506 | #endif |
| 2507 | } |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2508 | stw_p(phys_ram_base + ram_addr, val); |
bellard | f32fc64 | 2006-02-08 22:43:39 +0000 | [diff] [blame] | 2509 | #ifdef USE_KQEMU |
| 2510 | if (cpu_single_env->kqemu_enabled && |
| 2511 | (dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK) |
| 2512 | kqemu_modify_page(cpu_single_env, ram_addr); |
| 2513 | #endif |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 2514 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
| 2515 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
| 2516 | /* we remove the notdirty callback only if the code has been |
| 2517 | flushed */ |
| 2518 | if (dirty_flags == 0xff) |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 2519 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2520 | } |
| 2521 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2522 | static void notdirty_mem_writel(void *opaque, target_phys_addr_t ram_addr, |
| 2523 | uint32_t val) |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2524 | { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2525 | int dirty_flags; |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2526 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
| 2527 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 2528 | #if !defined(CONFIG_USER_ONLY) |
| 2529 | tb_invalidate_phys_page_fast(ram_addr, 4); |
| 2530 | dirty_flags = phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS]; |
| 2531 | #endif |
| 2532 | } |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2533 | stl_p(phys_ram_base + ram_addr, val); |
bellard | f32fc64 | 2006-02-08 22:43:39 +0000 | [diff] [blame] | 2534 | #ifdef USE_KQEMU |
| 2535 | if (cpu_single_env->kqemu_enabled && |
| 2536 | (dirty_flags & KQEMU_MODIFY_PAGE_MASK) != KQEMU_MODIFY_PAGE_MASK) |
| 2537 | kqemu_modify_page(cpu_single_env, ram_addr); |
| 2538 | #endif |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 2539 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
| 2540 | phys_ram_dirty[ram_addr >> TARGET_PAGE_BITS] = dirty_flags; |
| 2541 | /* we remove the notdirty callback only if the code has been |
| 2542 | flushed */ |
| 2543 | if (dirty_flags == 0xff) |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 2544 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2545 | } |
| 2546 | |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2547 | static CPUReadMemoryFunc *error_mem_read[3] = { |
| 2548 | NULL, /* never used */ |
| 2549 | NULL, /* never used */ |
| 2550 | NULL, /* never used */ |
| 2551 | }; |
| 2552 | |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2553 | static CPUWriteMemoryFunc *notdirty_mem_write[3] = { |
| 2554 | notdirty_mem_writeb, |
| 2555 | notdirty_mem_writew, |
| 2556 | notdirty_mem_writel, |
| 2557 | }; |
| 2558 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2559 | /* Generate a debug exception if a watchpoint has been hit. */ |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2560 | static void check_watchpoint(int offset, int len_mask, int flags) |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2561 | { |
| 2562 | CPUState *env = cpu_single_env; |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 2563 | target_ulong pc, cs_base; |
| 2564 | TranslationBlock *tb; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2565 | target_ulong vaddr; |
aliguori | a1d1bb3 | 2008-11-18 20:07:32 +0000 | [diff] [blame] | 2566 | CPUWatchpoint *wp; |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 2567 | int cpu_flags; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2568 | |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 2569 | if (env->watchpoint_hit) { |
| 2570 | /* We re-entered the check after replacing the TB. Now raise |
| 2571 | * the debug interrupt so that is will trigger after the |
| 2572 | * current instruction. */ |
| 2573 | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
| 2574 | return; |
| 2575 | } |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 2576 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
aliguori | c0ce998 | 2008-11-25 22:13:57 +0000 | [diff] [blame] | 2577 | TAILQ_FOREACH(wp, &env->watchpoints, entry) { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2578 | if ((vaddr == (wp->vaddr & len_mask) || |
| 2579 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 2580 | wp->flags |= BP_WATCHPOINT_HIT; |
| 2581 | if (!env->watchpoint_hit) { |
| 2582 | env->watchpoint_hit = wp; |
| 2583 | tb = tb_find_pc(env->mem_io_pc); |
| 2584 | if (!tb) { |
| 2585 | cpu_abort(env, "check_watchpoint: could not find TB for " |
| 2586 | "pc=%p", (void *)env->mem_io_pc); |
| 2587 | } |
| 2588 | cpu_restore_state(tb, env, env->mem_io_pc, NULL); |
| 2589 | tb_phys_invalidate(tb, -1); |
| 2590 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { |
| 2591 | env->exception_index = EXCP_DEBUG; |
| 2592 | } else { |
| 2593 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
| 2594 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); |
| 2595 | } |
| 2596 | cpu_resume_from_signal(env, NULL); |
aliguori | 06d55cc | 2008-11-18 20:24:06 +0000 | [diff] [blame] | 2597 | } |
aliguori | 6e140f2 | 2008-11-18 20:37:55 +0000 | [diff] [blame] | 2598 | } else { |
| 2599 | wp->flags &= ~BP_WATCHPOINT_HIT; |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2600 | } |
| 2601 | } |
| 2602 | } |
| 2603 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2604 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
| 2605 | so these check for a hit then pass through to the normal out-of-line |
| 2606 | phys routines. */ |
| 2607 | static uint32_t watch_mem_readb(void *opaque, target_phys_addr_t addr) |
| 2608 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2609 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_READ); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2610 | return ldub_phys(addr); |
| 2611 | } |
| 2612 | |
| 2613 | static uint32_t watch_mem_readw(void *opaque, target_phys_addr_t addr) |
| 2614 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2615 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_READ); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2616 | return lduw_phys(addr); |
| 2617 | } |
| 2618 | |
| 2619 | static uint32_t watch_mem_readl(void *opaque, target_phys_addr_t addr) |
| 2620 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2621 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_READ); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2622 | return ldl_phys(addr); |
| 2623 | } |
| 2624 | |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2625 | static void watch_mem_writeb(void *opaque, target_phys_addr_t addr, |
| 2626 | uint32_t val) |
| 2627 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2628 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_WRITE); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2629 | stb_phys(addr, val); |
| 2630 | } |
| 2631 | |
| 2632 | static void watch_mem_writew(void *opaque, target_phys_addr_t addr, |
| 2633 | uint32_t val) |
| 2634 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2635 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_WRITE); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2636 | stw_phys(addr, val); |
| 2637 | } |
| 2638 | |
| 2639 | static void watch_mem_writel(void *opaque, target_phys_addr_t addr, |
| 2640 | uint32_t val) |
| 2641 | { |
aliguori | b405133 | 2008-11-18 20:14:20 +0000 | [diff] [blame] | 2642 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_WRITE); |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2643 | stl_phys(addr, val); |
| 2644 | } |
| 2645 | |
| 2646 | static CPUReadMemoryFunc *watch_mem_read[3] = { |
| 2647 | watch_mem_readb, |
| 2648 | watch_mem_readw, |
| 2649 | watch_mem_readl, |
| 2650 | }; |
| 2651 | |
| 2652 | static CPUWriteMemoryFunc *watch_mem_write[3] = { |
| 2653 | watch_mem_writeb, |
| 2654 | watch_mem_writew, |
| 2655 | watch_mem_writel, |
| 2656 | }; |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2657 | |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2658 | static inline uint32_t subpage_readlen (subpage_t *mmio, target_phys_addr_t addr, |
| 2659 | unsigned int len) |
| 2660 | { |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2661 | uint32_t ret; |
| 2662 | unsigned int idx; |
| 2663 | |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2664 | idx = SUBPAGE_IDX(addr); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2665 | #if defined(DEBUG_SUBPAGE) |
| 2666 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
| 2667 | mmio, len, addr, idx); |
| 2668 | #endif |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2669 | ret = (**mmio->mem_read[idx][len])(mmio->opaque[idx][0][len], |
| 2670 | addr + mmio->region_offset[idx][0][len]); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2671 | |
| 2672 | return ret; |
| 2673 | } |
| 2674 | |
| 2675 | static inline void subpage_writelen (subpage_t *mmio, target_phys_addr_t addr, |
| 2676 | uint32_t value, unsigned int len) |
| 2677 | { |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2678 | unsigned int idx; |
| 2679 | |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2680 | idx = SUBPAGE_IDX(addr); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2681 | #if defined(DEBUG_SUBPAGE) |
| 2682 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", __func__, |
| 2683 | mmio, len, addr, idx, value); |
| 2684 | #endif |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2685 | (**mmio->mem_write[idx][len])(mmio->opaque[idx][1][len], |
| 2686 | addr + mmio->region_offset[idx][1][len], |
| 2687 | value); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2688 | } |
| 2689 | |
| 2690 | static uint32_t subpage_readb (void *opaque, target_phys_addr_t addr) |
| 2691 | { |
| 2692 | #if defined(DEBUG_SUBPAGE) |
| 2693 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 2694 | #endif |
| 2695 | |
| 2696 | return subpage_readlen(opaque, addr, 0); |
| 2697 | } |
| 2698 | |
| 2699 | static void subpage_writeb (void *opaque, target_phys_addr_t addr, |
| 2700 | uint32_t value) |
| 2701 | { |
| 2702 | #if defined(DEBUG_SUBPAGE) |
| 2703 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 2704 | #endif |
| 2705 | subpage_writelen(opaque, addr, value, 0); |
| 2706 | } |
| 2707 | |
| 2708 | static uint32_t subpage_readw (void *opaque, target_phys_addr_t addr) |
| 2709 | { |
| 2710 | #if defined(DEBUG_SUBPAGE) |
| 2711 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 2712 | #endif |
| 2713 | |
| 2714 | return subpage_readlen(opaque, addr, 1); |
| 2715 | } |
| 2716 | |
| 2717 | static void subpage_writew (void *opaque, target_phys_addr_t addr, |
| 2718 | uint32_t value) |
| 2719 | { |
| 2720 | #if defined(DEBUG_SUBPAGE) |
| 2721 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 2722 | #endif |
| 2723 | subpage_writelen(opaque, addr, value, 1); |
| 2724 | } |
| 2725 | |
| 2726 | static uint32_t subpage_readl (void *opaque, target_phys_addr_t addr) |
| 2727 | { |
| 2728 | #if defined(DEBUG_SUBPAGE) |
| 2729 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 2730 | #endif |
| 2731 | |
| 2732 | return subpage_readlen(opaque, addr, 2); |
| 2733 | } |
| 2734 | |
| 2735 | static void subpage_writel (void *opaque, |
| 2736 | target_phys_addr_t addr, uint32_t value) |
| 2737 | { |
| 2738 | #if defined(DEBUG_SUBPAGE) |
| 2739 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 2740 | #endif |
| 2741 | subpage_writelen(opaque, addr, value, 2); |
| 2742 | } |
| 2743 | |
| 2744 | static CPUReadMemoryFunc *subpage_read[] = { |
| 2745 | &subpage_readb, |
| 2746 | &subpage_readw, |
| 2747 | &subpage_readl, |
| 2748 | }; |
| 2749 | |
| 2750 | static CPUWriteMemoryFunc *subpage_write[] = { |
| 2751 | &subpage_writeb, |
| 2752 | &subpage_writew, |
| 2753 | &subpage_writel, |
| 2754 | }; |
| 2755 | |
| 2756 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2757 | ram_addr_t memory, ram_addr_t region_offset) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2758 | { |
| 2759 | int idx, eidx; |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2760 | unsigned int i; |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2761 | |
| 2762 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) |
| 2763 | return -1; |
| 2764 | idx = SUBPAGE_IDX(start); |
| 2765 | eidx = SUBPAGE_IDX(end); |
| 2766 | #if defined(DEBUG_SUBPAGE) |
| 2767 | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %d\n", __func__, |
| 2768 | mmio, start, end, idx, eidx, memory); |
| 2769 | #endif |
| 2770 | memory >>= IO_MEM_SHIFT; |
| 2771 | for (; idx <= eidx; idx++) { |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2772 | for (i = 0; i < 4; i++) { |
blueswir1 | 3ee8992 | 2008-01-02 19:45:26 +0000 | [diff] [blame] | 2773 | if (io_mem_read[memory][i]) { |
| 2774 | mmio->mem_read[idx][i] = &io_mem_read[memory][i]; |
| 2775 | mmio->opaque[idx][0][i] = io_mem_opaque[memory]; |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2776 | mmio->region_offset[idx][0][i] = region_offset; |
blueswir1 | 3ee8992 | 2008-01-02 19:45:26 +0000 | [diff] [blame] | 2777 | } |
| 2778 | if (io_mem_write[memory][i]) { |
| 2779 | mmio->mem_write[idx][i] = &io_mem_write[memory][i]; |
| 2780 | mmio->opaque[idx][1][i] = io_mem_opaque[memory]; |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2781 | mmio->region_offset[idx][1][i] = region_offset; |
blueswir1 | 3ee8992 | 2008-01-02 19:45:26 +0000 | [diff] [blame] | 2782 | } |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2783 | } |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2784 | } |
| 2785 | |
| 2786 | return 0; |
| 2787 | } |
| 2788 | |
aurel32 | 00f82b8 | 2008-04-27 21:12:55 +0000 | [diff] [blame] | 2789 | static void *subpage_init (target_phys_addr_t base, ram_addr_t *phys, |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2790 | ram_addr_t orig_memory, ram_addr_t region_offset) |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2791 | { |
| 2792 | subpage_t *mmio; |
| 2793 | int subpage_memory; |
| 2794 | |
| 2795 | mmio = qemu_mallocz(sizeof(subpage_t)); |
| 2796 | if (mmio != NULL) { |
| 2797 | mmio->base = base; |
| 2798 | subpage_memory = cpu_register_io_memory(0, subpage_read, subpage_write, mmio); |
| 2799 | #if defined(DEBUG_SUBPAGE) |
| 2800 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
| 2801 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
| 2802 | #endif |
| 2803 | *phys = subpage_memory | IO_MEM_SUBPAGE; |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2804 | subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory, |
| 2805 | region_offset); |
blueswir1 | db7b542 | 2007-05-26 17:36:03 +0000 | [diff] [blame] | 2806 | } |
| 2807 | |
| 2808 | return mmio; |
| 2809 | } |
| 2810 | |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2811 | static void io_mem_init(void) |
| 2812 | { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2813 | cpu_register_io_memory(IO_MEM_ROM >> IO_MEM_SHIFT, error_mem_read, unassigned_mem_write, NULL); |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2814 | cpu_register_io_memory(IO_MEM_UNASSIGNED >> IO_MEM_SHIFT, unassigned_mem_read, unassigned_mem_write, NULL); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2815 | cpu_register_io_memory(IO_MEM_NOTDIRTY >> IO_MEM_SHIFT, error_mem_read, notdirty_mem_write, NULL); |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2816 | io_mem_nb = 5; |
| 2817 | |
pbrook | 0f459d1 | 2008-06-09 00:20:13 +0000 | [diff] [blame] | 2818 | io_mem_watch = cpu_register_io_memory(0, watch_mem_read, |
pbrook | 6658ffb | 2007-03-16 23:58:11 +0000 | [diff] [blame] | 2819 | watch_mem_write, NULL); |
bellard | 1ccde1c | 2004-02-06 19:46:14 +0000 | [diff] [blame] | 2820 | /* alloc dirty bits array */ |
bellard | 0a962c0 | 2005-02-10 22:00:27 +0000 | [diff] [blame] | 2821 | phys_ram_dirty = qemu_vmalloc(phys_ram_size >> TARGET_PAGE_BITS); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2822 | memset(phys_ram_dirty, 0xff, phys_ram_size >> TARGET_PAGE_BITS); |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2823 | } |
| 2824 | |
| 2825 | /* mem_read and mem_write are arrays of functions containing the |
| 2826 | function to access byte (index 0), word (index 1) and dword (index |
blueswir1 | 3ee8992 | 2008-01-02 19:45:26 +0000 | [diff] [blame] | 2827 | 2). Functions can be omitted with a NULL function pointer. The |
| 2828 | registered functions may be modified dynamically later. |
| 2829 | If io_index is non zero, the corresponding io zone is |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2830 | modified. If it is zero, a new io zone is allocated. The return |
| 2831 | value can be used with cpu_register_physical_memory(). (-1) is |
| 2832 | returned if error. */ |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2833 | int cpu_register_io_memory(int io_index, |
| 2834 | CPUReadMemoryFunc **mem_read, |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2835 | CPUWriteMemoryFunc **mem_write, |
| 2836 | void *opaque) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2837 | { |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2838 | int i, subwidth = 0; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2839 | |
| 2840 | if (io_index <= 0) { |
bellard | b5ff1b3 | 2005-11-26 10:38:39 +0000 | [diff] [blame] | 2841 | if (io_mem_nb >= IO_MEM_NB_ENTRIES) |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2842 | return -1; |
| 2843 | io_index = io_mem_nb++; |
| 2844 | } else { |
| 2845 | if (io_index >= IO_MEM_NB_ENTRIES) |
| 2846 | return -1; |
| 2847 | } |
bellard | b5ff1b3 | 2005-11-26 10:38:39 +0000 | [diff] [blame] | 2848 | |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2849 | for(i = 0;i < 3; i++) { |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2850 | if (!mem_read[i] || !mem_write[i]) |
| 2851 | subwidth = IO_MEM_SUBWIDTH; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2852 | io_mem_read[io_index][i] = mem_read[i]; |
| 2853 | io_mem_write[io_index][i] = mem_write[i]; |
| 2854 | } |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2855 | io_mem_opaque[io_index] = opaque; |
blueswir1 | 4254fab | 2008-01-01 16:57:19 +0000 | [diff] [blame] | 2856 | return (io_index << IO_MEM_SHIFT) | subwidth; |
bellard | 33417e7 | 2003-08-10 21:47:01 +0000 | [diff] [blame] | 2857 | } |
bellard | 61382a5 | 2003-10-27 21:22:23 +0000 | [diff] [blame] | 2858 | |
bellard | 8926b51 | 2004-10-10 15:14:20 +0000 | [diff] [blame] | 2859 | CPUWriteMemoryFunc **cpu_get_io_memory_write(int io_index) |
| 2860 | { |
| 2861 | return io_mem_write[io_index >> IO_MEM_SHIFT]; |
| 2862 | } |
| 2863 | |
| 2864 | CPUReadMemoryFunc **cpu_get_io_memory_read(int io_index) |
| 2865 | { |
| 2866 | return io_mem_read[io_index >> IO_MEM_SHIFT]; |
| 2867 | } |
| 2868 | |
pbrook | e2eef17 | 2008-06-08 01:09:01 +0000 | [diff] [blame] | 2869 | #endif /* !defined(CONFIG_USER_ONLY) */ |
| 2870 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2871 | /* physical memory access (slow version, mainly for debug) */ |
| 2872 | #if defined(CONFIG_USER_ONLY) |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2873 | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2874 | int len, int is_write) |
| 2875 | { |
| 2876 | int l, flags; |
| 2877 | target_ulong page; |
pbrook | 53a5960 | 2006-03-25 19:31:22 +0000 | [diff] [blame] | 2878 | void * p; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2879 | |
| 2880 | while (len > 0) { |
| 2881 | page = addr & TARGET_PAGE_MASK; |
| 2882 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2883 | if (l > len) |
| 2884 | l = len; |
| 2885 | flags = page_get_flags(page); |
| 2886 | if (!(flags & PAGE_VALID)) |
| 2887 | return; |
| 2888 | if (is_write) { |
| 2889 | if (!(flags & PAGE_WRITE)) |
| 2890 | return; |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 2891 | /* XXX: this code should not depend on lock_user */ |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 2892 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 2893 | /* FIXME - should this return an error rather than just fail? */ |
| 2894 | return; |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 2895 | memcpy(p, buf, l); |
| 2896 | unlock_user(p, addr, l); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2897 | } else { |
| 2898 | if (!(flags & PAGE_READ)) |
| 2899 | return; |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 2900 | /* XXX: this code should not depend on lock_user */ |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 2901 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
bellard | 579a97f | 2007-11-11 14:26:47 +0000 | [diff] [blame] | 2902 | /* FIXME - should this return an error rather than just fail? */ |
| 2903 | return; |
aurel32 | 72fb7da | 2008-04-27 23:53:45 +0000 | [diff] [blame] | 2904 | memcpy(buf, p, l); |
aurel32 | 5b25757 | 2008-04-28 08:54:59 +0000 | [diff] [blame] | 2905 | unlock_user(p, addr, 0); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2906 | } |
| 2907 | len -= l; |
| 2908 | buf += l; |
| 2909 | addr += l; |
| 2910 | } |
| 2911 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 2912 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2913 | #else |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2914 | void cpu_physical_memory_rw(target_phys_addr_t addr, uint8_t *buf, |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2915 | int len, int is_write) |
| 2916 | { |
| 2917 | int l, io_index; |
| 2918 | uint8_t *ptr; |
| 2919 | uint32_t val; |
bellard | 2e12669 | 2004-04-25 21:28:44 +0000 | [diff] [blame] | 2920 | target_phys_addr_t page; |
| 2921 | unsigned long pd; |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 2922 | PhysPageDesc *p; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2923 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2924 | while (len > 0) { |
| 2925 | page = addr & TARGET_PAGE_MASK; |
| 2926 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2927 | if (l > len) |
| 2928 | l = len; |
bellard | 92e873b | 2004-05-21 14:52:29 +0000 | [diff] [blame] | 2929 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2930 | if (!p) { |
| 2931 | pd = IO_MEM_UNASSIGNED; |
| 2932 | } else { |
| 2933 | pd = p->phys_offset; |
| 2934 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 2935 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2936 | if (is_write) { |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2937 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2938 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2939 | if (p) |
| 2940 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
bellard | 6a00d60 | 2005-11-21 23:25:50 +0000 | [diff] [blame] | 2941 | /* XXX: could force cpu_single_env to NULL to avoid |
| 2942 | potential bugs */ |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2943 | if (l >= 4 && ((addr & 3) == 0)) { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 2944 | /* 32 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 2945 | val = ldl_p(buf); |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2946 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2947 | l = 4; |
| 2948 | } else if (l >= 2 && ((addr & 1) == 0)) { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 2949 | /* 16 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 2950 | val = lduw_p(buf); |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2951 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2952 | l = 2; |
| 2953 | } else { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 2954 | /* 8 bit write access */ |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 2955 | val = ldub_p(buf); |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2956 | io_mem_write[io_index][0](io_mem_opaque[io_index], addr, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2957 | l = 1; |
| 2958 | } |
| 2959 | } else { |
bellard | b448f2f | 2004-02-25 23:24:04 +0000 | [diff] [blame] | 2960 | unsigned long addr1; |
| 2961 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2962 | /* RAM case */ |
bellard | b448f2f | 2004-02-25 23:24:04 +0000 | [diff] [blame] | 2963 | ptr = phys_ram_base + addr1; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2964 | memcpy(ptr, buf, l); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2965 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 2966 | /* invalidate code */ |
| 2967 | tb_invalidate_phys_page_range(addr1, addr1 + l, 0); |
| 2968 | /* set dirty bit */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2969 | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 2970 | (0xff & ~CODE_DIRTY_FLAG); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 2971 | } |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2972 | } |
| 2973 | } else { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2974 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
bellard | 2a4188a | 2006-06-25 21:54:59 +0000 | [diff] [blame] | 2975 | !(pd & IO_MEM_ROMD)) { |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2976 | /* I/O case */ |
| 2977 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 2978 | if (p) |
| 2979 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2980 | if (l >= 4 && ((addr & 3) == 0)) { |
| 2981 | /* 32 bit read access */ |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2982 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 2983 | stl_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2984 | l = 4; |
| 2985 | } else if (l >= 2 && ((addr & 1) == 0)) { |
| 2986 | /* 16 bit read access */ |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2987 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 2988 | stw_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2989 | l = 2; |
| 2990 | } else { |
bellard | 1c213d1 | 2005-09-03 10:49:04 +0000 | [diff] [blame] | 2991 | /* 8 bit read access */ |
bellard | a4193c8 | 2004-06-03 14:01:43 +0000 | [diff] [blame] | 2992 | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr); |
bellard | c27004e | 2005-01-03 23:35:10 +0000 | [diff] [blame] | 2993 | stb_p(buf, val); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2994 | l = 1; |
| 2995 | } |
| 2996 | } else { |
| 2997 | /* RAM case */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 2998 | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 2999 | (addr & ~TARGET_PAGE_MASK); |
| 3000 | memcpy(buf, ptr, l); |
| 3001 | } |
| 3002 | } |
| 3003 | len -= l; |
| 3004 | buf += l; |
| 3005 | addr += l; |
| 3006 | } |
| 3007 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3008 | |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 3009 | /* used for ROM loading : can write in RAM and ROM */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3010 | void cpu_physical_memory_write_rom(target_phys_addr_t addr, |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 3011 | const uint8_t *buf, int len) |
| 3012 | { |
| 3013 | int l; |
| 3014 | uint8_t *ptr; |
| 3015 | target_phys_addr_t page; |
| 3016 | unsigned long pd; |
| 3017 | PhysPageDesc *p; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3018 | |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 3019 | while (len > 0) { |
| 3020 | page = addr & TARGET_PAGE_MASK; |
| 3021 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 3022 | if (l > len) |
| 3023 | l = len; |
| 3024 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 3025 | if (!p) { |
| 3026 | pd = IO_MEM_UNASSIGNED; |
| 3027 | } else { |
| 3028 | pd = p->phys_offset; |
| 3029 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3030 | |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 3031 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM && |
bellard | 2a4188a | 2006-06-25 21:54:59 +0000 | [diff] [blame] | 3032 | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
| 3033 | !(pd & IO_MEM_ROMD)) { |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 3034 | /* do nothing */ |
| 3035 | } else { |
| 3036 | unsigned long addr1; |
| 3037 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 3038 | /* ROM/RAM case */ |
| 3039 | ptr = phys_ram_base + addr1; |
| 3040 | memcpy(ptr, buf, l); |
| 3041 | } |
| 3042 | len -= l; |
| 3043 | buf += l; |
| 3044 | addr += l; |
| 3045 | } |
| 3046 | } |
| 3047 | |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 3048 | typedef struct { |
| 3049 | void *buffer; |
| 3050 | target_phys_addr_t addr; |
| 3051 | target_phys_addr_t len; |
| 3052 | } BounceBuffer; |
| 3053 | |
| 3054 | static BounceBuffer bounce; |
| 3055 | |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame^] | 3056 | typedef struct MapClient { |
| 3057 | void *opaque; |
| 3058 | void (*callback)(void *opaque); |
| 3059 | LIST_ENTRY(MapClient) link; |
| 3060 | } MapClient; |
| 3061 | |
| 3062 | static LIST_HEAD(map_client_list, MapClient) map_client_list |
| 3063 | = LIST_HEAD_INITIALIZER(map_client_list); |
| 3064 | |
| 3065 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
| 3066 | { |
| 3067 | MapClient *client = qemu_malloc(sizeof(*client)); |
| 3068 | |
| 3069 | client->opaque = opaque; |
| 3070 | client->callback = callback; |
| 3071 | LIST_INSERT_HEAD(&map_client_list, client, link); |
| 3072 | return client; |
| 3073 | } |
| 3074 | |
| 3075 | void cpu_unregister_map_client(void *_client) |
| 3076 | { |
| 3077 | MapClient *client = (MapClient *)_client; |
| 3078 | |
| 3079 | LIST_REMOVE(client, link); |
| 3080 | } |
| 3081 | |
| 3082 | static void cpu_notify_map_clients(void) |
| 3083 | { |
| 3084 | MapClient *client; |
| 3085 | |
| 3086 | while (!LIST_EMPTY(&map_client_list)) { |
| 3087 | client = LIST_FIRST(&map_client_list); |
| 3088 | client->callback(client->opaque); |
| 3089 | LIST_REMOVE(client, link); |
| 3090 | } |
| 3091 | } |
| 3092 | |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 3093 | /* Map a physical memory region into a host virtual address. |
| 3094 | * May map a subset of the requested range, given by and returned in *plen. |
| 3095 | * May return NULL if resources needed to perform the mapping are exhausted. |
| 3096 | * Use only for reads OR writes - not for read-modify-write operations. |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame^] | 3097 | * Use cpu_register_map_client() to know when retrying the map operation is |
| 3098 | * likely to succeed. |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 3099 | */ |
| 3100 | void *cpu_physical_memory_map(target_phys_addr_t addr, |
| 3101 | target_phys_addr_t *plen, |
| 3102 | int is_write) |
| 3103 | { |
| 3104 | target_phys_addr_t len = *plen; |
| 3105 | target_phys_addr_t done = 0; |
| 3106 | int l; |
| 3107 | uint8_t *ret = NULL; |
| 3108 | uint8_t *ptr; |
| 3109 | target_phys_addr_t page; |
| 3110 | unsigned long pd; |
| 3111 | PhysPageDesc *p; |
| 3112 | unsigned long addr1; |
| 3113 | |
| 3114 | while (len > 0) { |
| 3115 | page = addr & TARGET_PAGE_MASK; |
| 3116 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 3117 | if (l > len) |
| 3118 | l = len; |
| 3119 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 3120 | if (!p) { |
| 3121 | pd = IO_MEM_UNASSIGNED; |
| 3122 | } else { |
| 3123 | pd = p->phys_offset; |
| 3124 | } |
| 3125 | |
| 3126 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 3127 | if (done || bounce.buffer) { |
| 3128 | break; |
| 3129 | } |
| 3130 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
| 3131 | bounce.addr = addr; |
| 3132 | bounce.len = l; |
| 3133 | if (!is_write) { |
| 3134 | cpu_physical_memory_rw(addr, bounce.buffer, l, 0); |
| 3135 | } |
| 3136 | ptr = bounce.buffer; |
| 3137 | } else { |
| 3138 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 3139 | ptr = phys_ram_base + addr1; |
| 3140 | } |
| 3141 | if (!done) { |
| 3142 | ret = ptr; |
| 3143 | } else if (ret + done != ptr) { |
| 3144 | break; |
| 3145 | } |
| 3146 | |
| 3147 | len -= l; |
| 3148 | addr += l; |
| 3149 | done += l; |
| 3150 | } |
| 3151 | *plen = done; |
| 3152 | return ret; |
| 3153 | } |
| 3154 | |
| 3155 | /* Unmaps a memory region previously mapped by cpu_physical_memory_map(). |
| 3156 | * Will also mark the memory as dirty if is_write == 1. access_len gives |
| 3157 | * the amount of memory that was actually read or written by the caller. |
| 3158 | */ |
| 3159 | void cpu_physical_memory_unmap(void *buffer, target_phys_addr_t len, |
| 3160 | int is_write, target_phys_addr_t access_len) |
| 3161 | { |
| 3162 | if (buffer != bounce.buffer) { |
| 3163 | if (is_write) { |
| 3164 | unsigned long addr1 = (uint8_t *)buffer - phys_ram_base; |
| 3165 | while (access_len) { |
| 3166 | unsigned l; |
| 3167 | l = TARGET_PAGE_SIZE; |
| 3168 | if (l > access_len) |
| 3169 | l = access_len; |
| 3170 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 3171 | /* invalidate code */ |
| 3172 | tb_invalidate_phys_page_range(addr1, addr1 + l, 0); |
| 3173 | /* set dirty bit */ |
| 3174 | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
| 3175 | (0xff & ~CODE_DIRTY_FLAG); |
| 3176 | } |
| 3177 | addr1 += l; |
| 3178 | access_len -= l; |
| 3179 | } |
| 3180 | } |
| 3181 | return; |
| 3182 | } |
| 3183 | if (is_write) { |
| 3184 | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); |
| 3185 | } |
| 3186 | qemu_free(bounce.buffer); |
| 3187 | bounce.buffer = NULL; |
aliguori | ba223c2 | 2009-01-22 16:59:16 +0000 | [diff] [blame^] | 3188 | cpu_notify_map_clients(); |
aliguori | 6d16c2f | 2009-01-22 16:59:11 +0000 | [diff] [blame] | 3189 | } |
bellard | d0ecd2a | 2006-04-23 17:14:48 +0000 | [diff] [blame] | 3190 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3191 | /* warning: addr must be aligned */ |
| 3192 | uint32_t ldl_phys(target_phys_addr_t addr) |
| 3193 | { |
| 3194 | int io_index; |
| 3195 | uint8_t *ptr; |
| 3196 | uint32_t val; |
| 3197 | unsigned long pd; |
| 3198 | PhysPageDesc *p; |
| 3199 | |
| 3200 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 3201 | if (!p) { |
| 3202 | pd = IO_MEM_UNASSIGNED; |
| 3203 | } else { |
| 3204 | pd = p->phys_offset; |
| 3205 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3206 | |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3207 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
bellard | 2a4188a | 2006-06-25 21:54:59 +0000 | [diff] [blame] | 3208 | !(pd & IO_MEM_ROMD)) { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3209 | /* I/O case */ |
| 3210 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 3211 | if (p) |
| 3212 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3213 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
| 3214 | } else { |
| 3215 | /* RAM case */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3216 | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3217 | (addr & ~TARGET_PAGE_MASK); |
| 3218 | val = ldl_p(ptr); |
| 3219 | } |
| 3220 | return val; |
| 3221 | } |
| 3222 | |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 3223 | /* warning: addr must be aligned */ |
| 3224 | uint64_t ldq_phys(target_phys_addr_t addr) |
| 3225 | { |
| 3226 | int io_index; |
| 3227 | uint8_t *ptr; |
| 3228 | uint64_t val; |
| 3229 | unsigned long pd; |
| 3230 | PhysPageDesc *p; |
| 3231 | |
| 3232 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 3233 | if (!p) { |
| 3234 | pd = IO_MEM_UNASSIGNED; |
| 3235 | } else { |
| 3236 | pd = p->phys_offset; |
| 3237 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3238 | |
bellard | 2a4188a | 2006-06-25 21:54:59 +0000 | [diff] [blame] | 3239 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 3240 | !(pd & IO_MEM_ROMD)) { |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 3241 | /* I/O case */ |
| 3242 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 3243 | if (p) |
| 3244 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 3245 | #ifdef TARGET_WORDS_BIGENDIAN |
| 3246 | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; |
| 3247 | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); |
| 3248 | #else |
| 3249 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
| 3250 | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; |
| 3251 | #endif |
| 3252 | } else { |
| 3253 | /* RAM case */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3254 | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
bellard | 84b7b8e | 2005-11-28 21:19:04 +0000 | [diff] [blame] | 3255 | (addr & ~TARGET_PAGE_MASK); |
| 3256 | val = ldq_p(ptr); |
| 3257 | } |
| 3258 | return val; |
| 3259 | } |
| 3260 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 3261 | /* XXX: optimize */ |
| 3262 | uint32_t ldub_phys(target_phys_addr_t addr) |
| 3263 | { |
| 3264 | uint8_t val; |
| 3265 | cpu_physical_memory_read(addr, &val, 1); |
| 3266 | return val; |
| 3267 | } |
| 3268 | |
| 3269 | /* XXX: optimize */ |
| 3270 | uint32_t lduw_phys(target_phys_addr_t addr) |
| 3271 | { |
| 3272 | uint16_t val; |
| 3273 | cpu_physical_memory_read(addr, (uint8_t *)&val, 2); |
| 3274 | return tswap16(val); |
| 3275 | } |
| 3276 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3277 | /* warning: addr must be aligned. The ram page is not masked as dirty |
| 3278 | and the code inside is not invalidated. It is useful if the dirty |
| 3279 | bits are used to track modified PTEs */ |
| 3280 | void stl_phys_notdirty(target_phys_addr_t addr, uint32_t val) |
| 3281 | { |
| 3282 | int io_index; |
| 3283 | uint8_t *ptr; |
| 3284 | unsigned long pd; |
| 3285 | PhysPageDesc *p; |
| 3286 | |
| 3287 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 3288 | if (!p) { |
| 3289 | pd = IO_MEM_UNASSIGNED; |
| 3290 | } else { |
| 3291 | pd = p->phys_offset; |
| 3292 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3293 | |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 3294 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3295 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 3296 | if (p) |
| 3297 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3298 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 3299 | } else { |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 3300 | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 3301 | ptr = phys_ram_base + addr1; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3302 | stl_p(ptr, val); |
aliguori | 7457619 | 2008-10-06 14:02:03 +0000 | [diff] [blame] | 3303 | |
| 3304 | if (unlikely(in_migration)) { |
| 3305 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 3306 | /* invalidate code */ |
| 3307 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
| 3308 | /* set dirty bit */ |
| 3309 | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
| 3310 | (0xff & ~CODE_DIRTY_FLAG); |
| 3311 | } |
| 3312 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3313 | } |
| 3314 | } |
| 3315 | |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 3316 | void stq_phys_notdirty(target_phys_addr_t addr, uint64_t val) |
| 3317 | { |
| 3318 | int io_index; |
| 3319 | uint8_t *ptr; |
| 3320 | unsigned long pd; |
| 3321 | PhysPageDesc *p; |
| 3322 | |
| 3323 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 3324 | if (!p) { |
| 3325 | pd = IO_MEM_UNASSIGNED; |
| 3326 | } else { |
| 3327 | pd = p->phys_offset; |
| 3328 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3329 | |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 3330 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 3331 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 3332 | if (p) |
| 3333 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 3334 | #ifdef TARGET_WORDS_BIGENDIAN |
| 3335 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); |
| 3336 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); |
| 3337 | #else |
| 3338 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 3339 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); |
| 3340 | #endif |
| 3341 | } else { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3342 | ptr = phys_ram_base + (pd & TARGET_PAGE_MASK) + |
j_mayer | bc98a7e | 2007-04-04 07:55:12 +0000 | [diff] [blame] | 3343 | (addr & ~TARGET_PAGE_MASK); |
| 3344 | stq_p(ptr, val); |
| 3345 | } |
| 3346 | } |
| 3347 | |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3348 | /* warning: addr must be aligned */ |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3349 | void stl_phys(target_phys_addr_t addr, uint32_t val) |
| 3350 | { |
| 3351 | int io_index; |
| 3352 | uint8_t *ptr; |
| 3353 | unsigned long pd; |
| 3354 | PhysPageDesc *p; |
| 3355 | |
| 3356 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 3357 | if (!p) { |
| 3358 | pd = IO_MEM_UNASSIGNED; |
| 3359 | } else { |
| 3360 | pd = p->phys_offset; |
| 3361 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3362 | |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 3363 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3364 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
pbrook | 8da3ff1 | 2008-12-01 18:59:50 +0000 | [diff] [blame] | 3365 | if (p) |
| 3366 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3367 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 3368 | } else { |
| 3369 | unsigned long addr1; |
| 3370 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 3371 | /* RAM case */ |
| 3372 | ptr = phys_ram_base + addr1; |
| 3373 | stl_p(ptr, val); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 3374 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 3375 | /* invalidate code */ |
| 3376 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
| 3377 | /* set dirty bit */ |
bellard | f23db16 | 2005-08-21 19:12:28 +0000 | [diff] [blame] | 3378 | phys_ram_dirty[addr1 >> TARGET_PAGE_BITS] |= |
| 3379 | (0xff & ~CODE_DIRTY_FLAG); |
bellard | 3a7d929 | 2005-08-21 09:26:42 +0000 | [diff] [blame] | 3380 | } |
bellard | 8df1cd0 | 2005-01-28 22:37:22 +0000 | [diff] [blame] | 3381 | } |
| 3382 | } |
| 3383 | |
bellard | aab3309 | 2005-10-30 20:48:42 +0000 | [diff] [blame] | 3384 | /* XXX: optimize */ |
| 3385 | void stb_phys(target_phys_addr_t addr, uint32_t val) |
| 3386 | { |
| 3387 | uint8_t v = val; |
| 3388 | cpu_physical_memory_write(addr, &v, 1); |
| 3389 | } |
| 3390 | |
| 3391 | /* XXX: optimize */ |
| 3392 | void stw_phys(target_phys_addr_t addr, uint32_t val) |
| 3393 | { |
| 3394 | uint16_t v = tswap16(val); |
| 3395 | cpu_physical_memory_write(addr, (const uint8_t *)&v, 2); |
| 3396 | } |
| 3397 | |
| 3398 | /* XXX: optimize */ |
| 3399 | void stq_phys(target_phys_addr_t addr, uint64_t val) |
| 3400 | { |
| 3401 | val = tswap64(val); |
| 3402 | cpu_physical_memory_write(addr, (const uint8_t *)&val, 8); |
| 3403 | } |
| 3404 | |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 3405 | #endif |
| 3406 | |
| 3407 | /* virtual memory access for debug */ |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3408 | int cpu_memory_rw_debug(CPUState *env, target_ulong addr, |
bellard | b448f2f | 2004-02-25 23:24:04 +0000 | [diff] [blame] | 3409 | uint8_t *buf, int len, int is_write) |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 3410 | { |
| 3411 | int l; |
j_mayer | 9b3c35e | 2007-04-07 11:21:28 +0000 | [diff] [blame] | 3412 | target_phys_addr_t phys_addr; |
| 3413 | target_ulong page; |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 3414 | |
| 3415 | while (len > 0) { |
| 3416 | page = addr & TARGET_PAGE_MASK; |
| 3417 | phys_addr = cpu_get_phys_page_debug(env, page); |
| 3418 | /* if no physical page mapped, return an error */ |
| 3419 | if (phys_addr == -1) |
| 3420 | return -1; |
| 3421 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 3422 | if (l > len) |
| 3423 | l = len; |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3424 | cpu_physical_memory_rw(phys_addr + (addr & ~TARGET_PAGE_MASK), |
bellard | b448f2f | 2004-02-25 23:24:04 +0000 | [diff] [blame] | 3425 | buf, l, is_write); |
bellard | 13eb76e | 2004-01-24 15:23:36 +0000 | [diff] [blame] | 3426 | len -= l; |
| 3427 | buf += l; |
| 3428 | addr += l; |
| 3429 | } |
| 3430 | return 0; |
| 3431 | } |
| 3432 | |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 3433 | /* in deterministic execution mode, instructions doing device I/Os |
| 3434 | must be at the end of the TB */ |
| 3435 | void cpu_io_recompile(CPUState *env, void *retaddr) |
| 3436 | { |
| 3437 | TranslationBlock *tb; |
| 3438 | uint32_t n, cflags; |
| 3439 | target_ulong pc, cs_base; |
| 3440 | uint64_t flags; |
| 3441 | |
| 3442 | tb = tb_find_pc((unsigned long)retaddr); |
| 3443 | if (!tb) { |
| 3444 | cpu_abort(env, "cpu_io_recompile: could not find TB for pc=%p", |
| 3445 | retaddr); |
| 3446 | } |
| 3447 | n = env->icount_decr.u16.low + tb->icount; |
| 3448 | cpu_restore_state(tb, env, (unsigned long)retaddr, NULL); |
| 3449 | /* Calculate how many instructions had been executed before the fault |
ths | bf20dc0 | 2008-06-30 17:22:19 +0000 | [diff] [blame] | 3450 | occurred. */ |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 3451 | n = n - env->icount_decr.u16.low; |
| 3452 | /* Generate a new TB ending on the I/O insn. */ |
| 3453 | n++; |
| 3454 | /* On MIPS and SH, delay slot instructions can only be restarted if |
| 3455 | they were already the first instruction in the TB. If this is not |
ths | bf20dc0 | 2008-06-30 17:22:19 +0000 | [diff] [blame] | 3456 | the first instruction in a TB then re-execute the preceding |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 3457 | branch. */ |
| 3458 | #if defined(TARGET_MIPS) |
| 3459 | if ((env->hflags & MIPS_HFLAG_BMASK) != 0 && n > 1) { |
| 3460 | env->active_tc.PC -= 4; |
| 3461 | env->icount_decr.u16.low++; |
| 3462 | env->hflags &= ~MIPS_HFLAG_BMASK; |
| 3463 | } |
| 3464 | #elif defined(TARGET_SH4) |
| 3465 | if ((env->flags & ((DELAY_SLOT | DELAY_SLOT_CONDITIONAL))) != 0 |
| 3466 | && n > 1) { |
| 3467 | env->pc -= 2; |
| 3468 | env->icount_decr.u16.low++; |
| 3469 | env->flags &= ~(DELAY_SLOT | DELAY_SLOT_CONDITIONAL); |
| 3470 | } |
| 3471 | #endif |
| 3472 | /* This should never happen. */ |
| 3473 | if (n > CF_COUNT_MASK) |
| 3474 | cpu_abort(env, "TB too big during recompile"); |
| 3475 | |
| 3476 | cflags = n | CF_LAST_IO; |
| 3477 | pc = tb->pc; |
| 3478 | cs_base = tb->cs_base; |
| 3479 | flags = tb->flags; |
| 3480 | tb_phys_invalidate(tb, -1); |
| 3481 | /* FIXME: In theory this could raise an exception. In practice |
| 3482 | we have already translated the block once so it's probably ok. */ |
| 3483 | tb_gen_code(env, pc, cs_base, flags, cflags); |
ths | bf20dc0 | 2008-06-30 17:22:19 +0000 | [diff] [blame] | 3484 | /* TODO: If env->pc != tb->pc (i.e. the faulting instruction was not |
pbrook | 2e70f6e | 2008-06-29 01:03:05 +0000 | [diff] [blame] | 3485 | the first in the TB) then we end up generating a whole new TB and |
| 3486 | repeating the fault, which is horribly inefficient. |
| 3487 | Better would be to execute just this insn uncached, or generate a |
| 3488 | second new TB. */ |
| 3489 | cpu_resume_from_signal(env, NULL); |
| 3490 | } |
| 3491 | |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3492 | void dump_exec_info(FILE *f, |
| 3493 | int (*cpu_fprintf)(FILE *f, const char *fmt, ...)) |
| 3494 | { |
| 3495 | int i, target_code_size, max_target_code_size; |
| 3496 | int direct_jmp_count, direct_jmp2_count, cross_page; |
| 3497 | TranslationBlock *tb; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 3498 | |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3499 | target_code_size = 0; |
| 3500 | max_target_code_size = 0; |
| 3501 | cross_page = 0; |
| 3502 | direct_jmp_count = 0; |
| 3503 | direct_jmp2_count = 0; |
| 3504 | for(i = 0; i < nb_tbs; i++) { |
| 3505 | tb = &tbs[i]; |
| 3506 | target_code_size += tb->size; |
| 3507 | if (tb->size > max_target_code_size) |
| 3508 | max_target_code_size = tb->size; |
| 3509 | if (tb->page_addr[1] != -1) |
| 3510 | cross_page++; |
| 3511 | if (tb->tb_next_offset[0] != 0xffff) { |
| 3512 | direct_jmp_count++; |
| 3513 | if (tb->tb_next_offset[1] != 0xffff) { |
| 3514 | direct_jmp2_count++; |
| 3515 | } |
| 3516 | } |
| 3517 | } |
| 3518 | /* XXX: avoid using doubles ? */ |
bellard | 57fec1f | 2008-02-01 10:50:11 +0000 | [diff] [blame] | 3519 | cpu_fprintf(f, "Translation buffer state:\n"); |
bellard | 26a5f13 | 2008-05-28 12:30:31 +0000 | [diff] [blame] | 3520 | cpu_fprintf(f, "gen code size %ld/%ld\n", |
| 3521 | code_gen_ptr - code_gen_buffer, code_gen_buffer_max_size); |
| 3522 | cpu_fprintf(f, "TB count %d/%d\n", |
| 3523 | nb_tbs, code_gen_max_blocks); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3524 | cpu_fprintf(f, "TB avg target size %d max=%d bytes\n", |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3525 | nb_tbs ? target_code_size / nb_tbs : 0, |
| 3526 | max_target_code_size); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3527 | cpu_fprintf(f, "TB avg host size %d bytes (expansion ratio: %0.1f)\n", |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3528 | nb_tbs ? (code_gen_ptr - code_gen_buffer) / nb_tbs : 0, |
| 3529 | target_code_size ? (double) (code_gen_ptr - code_gen_buffer) / target_code_size : 0); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3530 | cpu_fprintf(f, "cross page TB count %d (%d%%)\n", |
| 3531 | cross_page, |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3532 | nb_tbs ? (cross_page * 100) / nb_tbs : 0); |
| 3533 | cpu_fprintf(f, "direct jump count %d (%d%%) (2 jumps=%d %d%%)\n", |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3534 | direct_jmp_count, |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3535 | nb_tbs ? (direct_jmp_count * 100) / nb_tbs : 0, |
| 3536 | direct_jmp2_count, |
| 3537 | nb_tbs ? (direct_jmp2_count * 100) / nb_tbs : 0); |
bellard | 57fec1f | 2008-02-01 10:50:11 +0000 | [diff] [blame] | 3538 | cpu_fprintf(f, "\nStatistics:\n"); |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3539 | cpu_fprintf(f, "TB flush count %d\n", tb_flush_count); |
| 3540 | cpu_fprintf(f, "TB invalidate count %d\n", tb_phys_invalidate_count); |
| 3541 | cpu_fprintf(f, "TLB flush count %d\n", tlb_flush_count); |
bellard | b67d9a5 | 2008-05-23 09:57:34 +0000 | [diff] [blame] | 3542 | tcg_dump_info(f, cpu_fprintf); |
bellard | e3db722 | 2005-01-26 22:00:47 +0000 | [diff] [blame] | 3543 | } |
| 3544 | |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3545 | #if !defined(CONFIG_USER_ONLY) |
bellard | 61382a5 | 2003-10-27 21:22:23 +0000 | [diff] [blame] | 3546 | |
| 3547 | #define MMUSUFFIX _cmmu |
| 3548 | #define GETPC() NULL |
| 3549 | #define env cpu_single_env |
bellard | b769d8f | 2004-10-03 15:07:13 +0000 | [diff] [blame] | 3550 | #define SOFTMMU_CODE_ACCESS |
bellard | 61382a5 | 2003-10-27 21:22:23 +0000 | [diff] [blame] | 3551 | |
| 3552 | #define SHIFT 0 |
| 3553 | #include "softmmu_template.h" |
| 3554 | |
| 3555 | #define SHIFT 1 |
| 3556 | #include "softmmu_template.h" |
| 3557 | |
| 3558 | #define SHIFT 2 |
| 3559 | #include "softmmu_template.h" |
| 3560 | |
| 3561 | #define SHIFT 3 |
| 3562 | #include "softmmu_template.h" |
| 3563 | |
| 3564 | #undef env |
| 3565 | |
| 3566 | #endif |