| /* |
| * QEMU CPU model |
| * |
| * Copyright (c) 2012 SUSE LINUX Products GmbH |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version 2 |
| * of the License, or (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, see |
| * <http://www.gnu.org/licenses/gpl-2.0.html> |
| */ |
| #ifndef QEMU_CPU_H |
| #define QEMU_CPU_H |
| |
| #include "hw/qdev-core.h" |
| #include "disas/bfd.h" |
| #include "exec/hwaddr.h" |
| #include "exec/memattrs.h" |
| #include "qemu/bitmap.h" |
| #include "qemu/queue.h" |
| #include "qemu/thread.h" |
| #include "trace/generated-events.h" |
| |
| typedef int (*WriteCoreDumpFunction)(const void *buf, size_t size, |
| void *opaque); |
| |
| /** |
| * vaddr: |
| * Type wide enough to contain any #target_ulong virtual address. |
| */ |
| typedef uint64_t vaddr; |
| #define VADDR_PRId PRId64 |
| #define VADDR_PRIu PRIu64 |
| #define VADDR_PRIo PRIo64 |
| #define VADDR_PRIx PRIx64 |
| #define VADDR_PRIX PRIX64 |
| #define VADDR_MAX UINT64_MAX |
| |
| /** |
| * SECTION:cpu |
| * @section_id: QEMU-cpu |
| * @title: CPU Class |
| * @short_description: Base class for all CPUs |
| */ |
| |
| #define TYPE_CPU "cpu" |
| |
| /* Since this macro is used a lot in hot code paths and in conjunction with |
| * FooCPU *foo_env_get_cpu(), we deviate from usual QOM practice by using |
| * an unchecked cast. |
| */ |
| #define CPU(obj) ((CPUState *)(obj)) |
| |
| #define CPU_CLASS(class) OBJECT_CLASS_CHECK(CPUClass, (class), TYPE_CPU) |
| #define CPU_GET_CLASS(obj) OBJECT_GET_CLASS(CPUClass, (obj), TYPE_CPU) |
| |
| typedef enum MMUAccessType { |
| MMU_DATA_LOAD = 0, |
| MMU_DATA_STORE = 1, |
| MMU_INST_FETCH = 2 |
| } MMUAccessType; |
| |
| typedef struct CPUWatchpoint CPUWatchpoint; |
| |
| typedef void (*CPUUnassignedAccess)(CPUState *cpu, hwaddr addr, |
| bool is_write, bool is_exec, int opaque, |
| unsigned size); |
| |
| struct TranslationBlock; |
| |
| /** |
| * CPUClass: |
| * @class_by_name: Callback to map -cpu command line model name to an |
| * instantiatable CPU type. |
| * @parse_features: Callback to parse command line arguments. |
| * @reset: Callback to reset the #CPUState to its initial state. |
| * @reset_dump_flags: #CPUDumpFlags to use for reset logging. |
| * @has_work: Callback for checking if there is work to do. |
| * @do_interrupt: Callback for interrupt handling. |
| * @do_unassigned_access: Callback for unassigned access handling. |
| * @do_unaligned_access: Callback for unaligned access handling, if |
| * the target defines #ALIGNED_ONLY. |
| * @virtio_is_big_endian: Callback to return %true if a CPU which supports |
| * runtime configurable endianness is currently big-endian. Non-configurable |
| * CPUs can use the default implementation of this method. This method should |
| * not be used by any callers other than the pre-1.0 virtio devices. |
| * @memory_rw_debug: Callback for GDB memory access. |
| * @dump_state: Callback for dumping state. |
| * @dump_statistics: Callback for dumping statistics. |
| * @get_arch_id: Callback for getting architecture-dependent CPU ID. |
| * @get_paging_enabled: Callback for inquiring whether paging is enabled. |
| * @get_memory_mapping: Callback for obtaining the memory mappings. |
| * @set_pc: Callback for setting the Program Counter register. |
| * @synchronize_from_tb: Callback for synchronizing state from a TCG |
| * #TranslationBlock. |
| * @handle_mmu_fault: Callback for handling an MMU fault. |
| * @get_phys_page_debug: Callback for obtaining a physical address. |
| * @get_phys_page_attrs_debug: Callback for obtaining a physical address and the |
| * associated memory transaction attributes to use for the access. |
| * CPUs which use memory transaction attributes should implement this |
| * instead of get_phys_page_debug. |
| * @asidx_from_attrs: Callback to return the CPU AddressSpace to use for |
| * a memory access with the specified memory transaction attributes. |
| * @gdb_read_register: Callback for letting GDB read a register. |
| * @gdb_write_register: Callback for letting GDB write a register. |
| * @debug_check_watchpoint: Callback: return true if the architectural |
| * watchpoint whose address has matched should really fire. |
| * @debug_excp_handler: Callback for handling debug exceptions. |
| * @write_elf64_note: Callback for writing a CPU-specific ELF note to a |
| * 64-bit VM coredump. |
| * @write_elf32_qemunote: Callback for writing a CPU- and QEMU-specific ELF |
| * note to a 32-bit VM coredump. |
| * @write_elf32_note: Callback for writing a CPU-specific ELF note to a |
| * 32-bit VM coredump. |
| * @write_elf32_qemunote: Callback for writing a CPU- and QEMU-specific ELF |
| * note to a 32-bit VM coredump. |
| * @vmsd: State description for migration. |
| * @gdb_num_core_regs: Number of core registers accessible to GDB. |
| * @gdb_core_xml_file: File name for core registers GDB XML description. |
| * @gdb_stop_before_watchpoint: Indicates whether GDB expects the CPU to stop |
| * before the insn which triggers a watchpoint rather than after it. |
| * @gdb_arch_name: Optional callback that returns the architecture name known |
| * to GDB. The caller must free the returned string with g_free. |
| * @cpu_exec_enter: Callback for cpu_exec preparation. |
| * @cpu_exec_exit: Callback for cpu_exec cleanup. |
| * @cpu_exec_interrupt: Callback for processing interrupts in cpu_exec. |
| * @disas_set_info: Setup architecture specific components of disassembly info |
| * |
| * Represents a CPU family or model. |
| */ |
| typedef struct CPUClass { |
| /*< private >*/ |
| DeviceClass parent_class; |
| /*< public >*/ |
| |
| ObjectClass *(*class_by_name)(const char *cpu_model); |
| void (*parse_features)(const char *typename, char *str, Error **errp); |
| |
| void (*reset)(CPUState *cpu); |
| int reset_dump_flags; |
| bool (*has_work)(CPUState *cpu); |
| void (*do_interrupt)(CPUState *cpu); |
| CPUUnassignedAccess do_unassigned_access; |
| void (*do_unaligned_access)(CPUState *cpu, vaddr addr, |
| MMUAccessType access_type, |
| int mmu_idx, uintptr_t retaddr, |
| unsigned size); |
| bool (*virtio_is_big_endian)(CPUState *cpu); |
| int (*memory_rw_debug)(CPUState *cpu, vaddr addr, |
| uint8_t *buf, int len, bool is_write); |
| void (*dump_state)(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, |
| int flags); |
| void (*dump_statistics)(CPUState *cpu, FILE *f, |
| fprintf_function cpu_fprintf, int flags); |
| int64_t (*get_arch_id)(CPUState *cpu); |
| bool (*get_paging_enabled)(const CPUState *cpu); |
| void (*get_memory_mapping)(CPUState *cpu, MemoryMappingList *list, |
| Error **errp); |
| void (*set_pc)(CPUState *cpu, vaddr value); |
| void (*synchronize_from_tb)(CPUState *cpu, struct TranslationBlock *tb); |
| int (*handle_mmu_fault)(CPUState *cpu, vaddr address, int rw, |
| int mmu_index); |
| hwaddr (*get_phys_page_debug)(CPUState *cpu, vaddr addr); |
| hwaddr (*get_phys_page_attrs_debug)(CPUState *cpu, vaddr addr, |
| MemTxAttrs *attrs); |
| int (*asidx_from_attrs)(CPUState *cpu, MemTxAttrs attrs); |
| int (*gdb_read_register)(CPUState *cpu, uint8_t *buf, int reg); |
| int (*gdb_write_register)(CPUState *cpu, uint8_t *buf, int reg); |
| bool (*debug_check_watchpoint)(CPUState *cpu, CPUWatchpoint *wp); |
| void (*debug_excp_handler)(CPUState *cpu); |
| |
| int (*write_elf64_note)(WriteCoreDumpFunction f, CPUState *cpu, |
| int cpuid, void *opaque); |
| int (*write_elf64_qemunote)(WriteCoreDumpFunction f, CPUState *cpu, |
| void *opaque); |
| int (*write_elf32_note)(WriteCoreDumpFunction f, CPUState *cpu, |
| int cpuid, void *opaque); |
| int (*write_elf32_qemunote)(WriteCoreDumpFunction f, CPUState *cpu, |
| void *opaque); |
| |
| const struct VMStateDescription *vmsd; |
| int gdb_num_core_regs; |
| const char *gdb_core_xml_file; |
| gchar * (*gdb_arch_name)(CPUState *cpu); |
| bool gdb_stop_before_watchpoint; |
| |
| void (*cpu_exec_enter)(CPUState *cpu); |
| void (*cpu_exec_exit)(CPUState *cpu); |
| bool (*cpu_exec_interrupt)(CPUState *cpu, int interrupt_request); |
| |
| void (*disas_set_info)(CPUState *cpu, disassemble_info *info); |
| } CPUClass; |
| |
| #ifdef HOST_WORDS_BIGENDIAN |
| typedef struct icount_decr_u16 { |
| uint16_t high; |
| uint16_t low; |
| } icount_decr_u16; |
| #else |
| typedef struct icount_decr_u16 { |
| uint16_t low; |
| uint16_t high; |
| } icount_decr_u16; |
| #endif |
| |
| typedef struct CPUBreakpoint { |
| vaddr pc; |
| int flags; /* BP_* */ |
| QTAILQ_ENTRY(CPUBreakpoint) entry; |
| } CPUBreakpoint; |
| |
| struct CPUWatchpoint { |
| vaddr vaddr; |
| vaddr len; |
| vaddr hitaddr; |
| MemTxAttrs hitattrs; |
| int flags; /* BP_* */ |
| QTAILQ_ENTRY(CPUWatchpoint) entry; |
| }; |
| |
| struct KVMState; |
| struct kvm_run; |
| |
| #define TB_JMP_CACHE_BITS 12 |
| #define TB_JMP_CACHE_SIZE (1 << TB_JMP_CACHE_BITS) |
| |
| /* work queue */ |
| struct qemu_work_item { |
| struct qemu_work_item *next; |
| void (*func)(void *data); |
| void *data; |
| int done; |
| bool free; |
| }; |
| |
| /** |
| * CPUState: |
| * @cpu_index: CPU index (informative). |
| * @nr_cores: Number of cores within this CPU package. |
| * @nr_threads: Number of threads within this CPU. |
| * @numa_node: NUMA node this CPU is belonging to. |
| * @host_tid: Host thread ID. |
| * @running: #true if CPU is currently running (usermode). |
| * @created: Indicates whether the CPU thread has been successfully created. |
| * @interrupt_request: Indicates a pending interrupt request. |
| * @halted: Nonzero if the CPU is in suspended state. |
| * @stop: Indicates a pending stop request. |
| * @stopped: Indicates the CPU has been artificially stopped. |
| * @unplug: Indicates a pending CPU unplug request. |
| * @crash_occurred: Indicates the OS reported a crash (panic) for this CPU |
| * @tcg_exit_req: Set to force TCG to stop executing linked TBs for this |
| * CPU and return to its top level loop. |
| * @tb_flushed: Indicates the translation buffer has been flushed. |
| * @singlestep_enabled: Flags for single-stepping. |
| * @icount_extra: Instructions until next timer event. |
| * @icount_decr: Number of cycles left, with interrupt flag in high bit. |
| * This allows a single read-compare-cbranch-write sequence to test |
| * for both decrementer underflow and exceptions. |
| * @can_do_io: Nonzero if memory-mapped IO is safe. Deterministic execution |
| * requires that IO only be performed on the last instruction of a TB |
| * so that interrupts take effect immediately. |
| * @cpu_ases: Pointer to array of CPUAddressSpaces (which define the |
| * AddressSpaces this CPU has) |
| * @num_ases: number of CPUAddressSpaces in @cpu_ases |
| * @as: Pointer to the first AddressSpace, for the convenience of targets which |
| * only have a single AddressSpace |
| * @env_ptr: Pointer to subclass-specific CPUArchState field. |
| * @gdb_regs: Additional GDB registers. |
| * @gdb_num_regs: Number of total registers accessible to GDB. |
| * @gdb_num_g_regs: Number of registers in GDB 'g' packets. |
| * @next_cpu: Next CPU sharing TB cache. |
| * @opaque: User data. |
| * @mem_io_pc: Host Program Counter at which the memory was accessed. |
| * @mem_io_vaddr: Target virtual address at which the memory was accessed. |
| * @kvm_fd: vCPU file descriptor for KVM. |
| * @work_mutex: Lock to prevent multiple access to queued_work_*. |
| * @queued_work_first: First asynchronous work pending. |
| * @trace_dstate: Dynamic tracing state of events for this vCPU (bitmask). |
| * |
| * State of one CPU core or thread. |
| */ |
| struct CPUState { |
| /*< private >*/ |
| DeviceState parent_obj; |
| /*< public >*/ |
| |
| int nr_cores; |
| int nr_threads; |
| int numa_node; |
| |
| struct QemuThread *thread; |
| #ifdef _WIN32 |
| HANDLE hThread; |
| #endif |
| int thread_id; |
| uint32_t host_tid; |
| bool running; |
| struct QemuCond *halt_cond; |
| bool thread_kicked; |
| bool created; |
| bool stop; |
| bool stopped; |
| bool unplug; |
| bool crash_occurred; |
| bool exit_request; |
| bool tb_flushed; |
| uint32_t interrupt_request; |
| int singlestep_enabled; |
| int64_t icount_extra; |
| sigjmp_buf jmp_env; |
| |
| QemuMutex work_mutex; |
| struct qemu_work_item *queued_work_first, *queued_work_last; |
| |
| CPUAddressSpace *cpu_ases; |
| int num_ases; |
| AddressSpace *as; |
| MemoryRegion *memory; |
| |
| void *env_ptr; /* CPUArchState */ |
| struct TranslationBlock *tb_jmp_cache[TB_JMP_CACHE_SIZE]; |
| struct GDBRegisterState *gdb_regs; |
| int gdb_num_regs; |
| int gdb_num_g_regs; |
| QTAILQ_ENTRY(CPUState) node; |
| |
| /* ice debug support */ |
| QTAILQ_HEAD(breakpoints_head, CPUBreakpoint) breakpoints; |
| |
| QTAILQ_HEAD(watchpoints_head, CPUWatchpoint) watchpoints; |
| CPUWatchpoint *watchpoint_hit; |
| |
| void *opaque; |
| |
| /* In order to avoid passing too many arguments to the MMIO helpers, |
| * we store some rarely used information in the CPU context. |
| */ |
| uintptr_t mem_io_pc; |
| vaddr mem_io_vaddr; |
| |
| int kvm_fd; |
| bool kvm_vcpu_dirty; |
| struct KVMState *kvm_state; |
| struct kvm_run *kvm_run; |
| |
| /* Used for events with 'vcpu' and *without* the 'disabled' properties */ |
| DECLARE_BITMAP(trace_dstate, TRACE_VCPU_EVENT_COUNT); |
| |
| /* TODO Move common fields from CPUArchState here. */ |
| int cpu_index; /* used by alpha TCG */ |
| uint32_t halted; /* used by alpha, cris, ppc TCG */ |
| union { |
| uint32_t u32; |
| icount_decr_u16 u16; |
| } icount_decr; |
| uint32_t can_do_io; |
| int32_t exception_index; /* used by m68k TCG */ |
| |
| /* Used to keep track of an outstanding cpu throttle thread for migration |
| * autoconverge |
| */ |
| bool throttle_thread_scheduled; |
| |
| /* Note that this is accessed at the start of every TB via a negative |
| offset from AREG0. Leave this field at the end so as to make the |
| (absolute value) offset as small as possible. This reduces code |
| size, especially for hosts without large memory offsets. */ |
| uint32_t tcg_exit_req; |
| }; |
| |
| QTAILQ_HEAD(CPUTailQ, CPUState); |
| extern struct CPUTailQ cpus; |
| #define CPU_NEXT(cpu) QTAILQ_NEXT(cpu, node) |
| #define CPU_FOREACH(cpu) QTAILQ_FOREACH(cpu, &cpus, node) |
| #define CPU_FOREACH_SAFE(cpu, next_cpu) \ |
| QTAILQ_FOREACH_SAFE(cpu, &cpus, node, next_cpu) |
| #define CPU_FOREACH_REVERSE(cpu) \ |
| QTAILQ_FOREACH_REVERSE(cpu, &cpus, CPUTailQ, node) |
| #define first_cpu QTAILQ_FIRST(&cpus) |
| |
| extern __thread CPUState *current_cpu; |
| |
| /** |
| * cpu_paging_enabled: |
| * @cpu: The CPU whose state is to be inspected. |
| * |
| * Returns: %true if paging is enabled, %false otherwise. |
| */ |
| bool cpu_paging_enabled(const CPUState *cpu); |
| |
| /** |
| * cpu_get_memory_mapping: |
| * @cpu: The CPU whose memory mappings are to be obtained. |
| * @list: Where to write the memory mappings to. |
| * @errp: Pointer for reporting an #Error. |
| */ |
| void cpu_get_memory_mapping(CPUState *cpu, MemoryMappingList *list, |
| Error **errp); |
| |
| /** |
| * cpu_write_elf64_note: |
| * @f: pointer to a function that writes memory to a file |
| * @cpu: The CPU whose memory is to be dumped |
| * @cpuid: ID number of the CPU |
| * @opaque: pointer to the CPUState struct |
| */ |
| int cpu_write_elf64_note(WriteCoreDumpFunction f, CPUState *cpu, |
| int cpuid, void *opaque); |
| |
| /** |
| * cpu_write_elf64_qemunote: |
| * @f: pointer to a function that writes memory to a file |
| * @cpu: The CPU whose memory is to be dumped |
| * @cpuid: ID number of the CPU |
| * @opaque: pointer to the CPUState struct |
| */ |
| int cpu_write_elf64_qemunote(WriteCoreDumpFunction f, CPUState *cpu, |
| void *opaque); |
| |
| /** |
| * cpu_write_elf32_note: |
| * @f: pointer to a function that writes memory to a file |
| * @cpu: The CPU whose memory is to be dumped |
| * @cpuid: ID number of the CPU |
| * @opaque: pointer to the CPUState struct |
| */ |
| int cpu_write_elf32_note(WriteCoreDumpFunction f, CPUState *cpu, |
| int cpuid, void *opaque); |
| |
| /** |
| * cpu_write_elf32_qemunote: |
| * @f: pointer to a function that writes memory to a file |
| * @cpu: The CPU whose memory is to be dumped |
| * @cpuid: ID number of the CPU |
| * @opaque: pointer to the CPUState struct |
| */ |
| int cpu_write_elf32_qemunote(WriteCoreDumpFunction f, CPUState *cpu, |
| void *opaque); |
| |
| /** |
| * CPUDumpFlags: |
| * @CPU_DUMP_CODE: |
| * @CPU_DUMP_FPU: dump FPU register state, not just integer |
| * @CPU_DUMP_CCOP: dump info about TCG QEMU's condition code optimization state |
| */ |
| enum CPUDumpFlags { |
| CPU_DUMP_CODE = 0x00010000, |
| CPU_DUMP_FPU = 0x00020000, |
| CPU_DUMP_CCOP = 0x00040000, |
| }; |
| |
| /** |
| * cpu_dump_state: |
| * @cpu: The CPU whose state is to be dumped. |
| * @f: File to dump to. |
| * @cpu_fprintf: Function to dump with. |
| * @flags: Flags what to dump. |
| * |
| * Dumps CPU state. |
| */ |
| void cpu_dump_state(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, |
| int flags); |
| |
| /** |
| * cpu_dump_statistics: |
| * @cpu: The CPU whose state is to be dumped. |
| * @f: File to dump to. |
| * @cpu_fprintf: Function to dump with. |
| * @flags: Flags what to dump. |
| * |
| * Dumps CPU statistics. |
| */ |
| void cpu_dump_statistics(CPUState *cpu, FILE *f, fprintf_function cpu_fprintf, |
| int flags); |
| |
| #ifndef CONFIG_USER_ONLY |
| /** |
| * cpu_get_phys_page_attrs_debug: |
| * @cpu: The CPU to obtain the physical page address for. |
| * @addr: The virtual address. |
| * @attrs: Updated on return with the memory transaction attributes to use |
| * for this access. |
| * |
| * Obtains the physical page corresponding to a virtual one, together |
| * with the corresponding memory transaction attributes to use for the access. |
| * Use it only for debugging because no protection checks are done. |
| * |
| * Returns: Corresponding physical page address or -1 if no page found. |
| */ |
| static inline hwaddr cpu_get_phys_page_attrs_debug(CPUState *cpu, vaddr addr, |
| MemTxAttrs *attrs) |
| { |
| CPUClass *cc = CPU_GET_CLASS(cpu); |
| |
| if (cc->get_phys_page_attrs_debug) { |
| return cc->get_phys_page_attrs_debug(cpu, addr, attrs); |
| } |
| /* Fallback for CPUs which don't implement the _attrs_ hook */ |
| *attrs = MEMTXATTRS_UNSPECIFIED; |
| return cc->get_phys_page_debug(cpu, addr); |
| } |
| |
| /** |
| * cpu_get_phys_page_debug: |
| * @cpu: The CPU to obtain the physical page address for. |
| * @addr: The virtual address. |
| * |
| * Obtains the physical page corresponding to a virtual one. |
| * Use it only for debugging because no protection checks are done. |
| * |
| * Returns: Corresponding physical page address or -1 if no page found. |
| */ |
| static inline hwaddr cpu_get_phys_page_debug(CPUState *cpu, vaddr addr) |
| { |
| MemTxAttrs attrs = {}; |
| |
| return cpu_get_phys_page_attrs_debug(cpu, addr, &attrs); |
| } |
| |
| /** cpu_asidx_from_attrs: |
| * @cpu: CPU |
| * @attrs: memory transaction attributes |
| * |
| * Returns the address space index specifying the CPU AddressSpace |
| * to use for a memory access with the given transaction attributes. |
| */ |
| static inline int cpu_asidx_from_attrs(CPUState *cpu, MemTxAttrs attrs) |
| { |
| CPUClass *cc = CPU_GET_CLASS(cpu); |
| |
| if (cc->asidx_from_attrs) { |
| return cc->asidx_from_attrs(cpu, attrs); |
| } |
| return 0; |
| } |
| #endif |
| |
| /** |
| * cpu_reset: |
| * @cpu: The CPU whose state is to be reset. |
| */ |
| void cpu_reset(CPUState *cpu); |
| |
| /** |
| * cpu_class_by_name: |
| * @typename: The CPU base type. |
| * @cpu_model: The model string without any parameters. |
| * |
| * Looks up a CPU #ObjectClass matching name @cpu_model. |
| * |
| * Returns: A #CPUClass or %NULL if not matching class is found. |
| */ |
| ObjectClass *cpu_class_by_name(const char *typename, const char *cpu_model); |
| |
| /** |
| * cpu_generic_init: |
| * @typename: The CPU base type. |
| * @cpu_model: The model string including optional parameters. |
| * |
| * Instantiates a CPU, processes optional parameters and realizes the CPU. |
| * |
| * Returns: A #CPUState or %NULL if an error occurred. |
| */ |
| CPUState *cpu_generic_init(const char *typename, const char *cpu_model); |
| |
| /** |
| * cpu_has_work: |
| * @cpu: The vCPU to check. |
| * |
| * Checks whether the CPU has work to do. |
| * |
| * Returns: %true if the CPU has work, %false otherwise. |
| */ |
| static inline bool cpu_has_work(CPUState *cpu) |
| { |
| CPUClass *cc = CPU_GET_CLASS(cpu); |
| |
| g_assert(cc->has_work); |
| return cc->has_work(cpu); |
| } |
| |
| /** |
| * qemu_cpu_is_self: |
| * @cpu: The vCPU to check against. |
| * |
| * Checks whether the caller is executing on the vCPU thread. |
| * |
| * Returns: %true if called from @cpu's thread, %false otherwise. |
| */ |
| bool qemu_cpu_is_self(CPUState *cpu); |
| |
| /** |
| * qemu_cpu_kick: |
| * @cpu: The vCPU to kick. |
| * |
| * Kicks @cpu's thread. |
| */ |
| void qemu_cpu_kick(CPUState *cpu); |
| |
| /** |
| * cpu_is_stopped: |
| * @cpu: The CPU to check. |
| * |
| * Checks whether the CPU is stopped. |
| * |
| * Returns: %true if run state is not running or if artificially stopped; |
| * %false otherwise. |
| */ |
| bool cpu_is_stopped(CPUState *cpu); |
| |
| /** |
| * run_on_cpu: |
| * @cpu: The vCPU to run on. |
| * @func: The function to be executed. |
| * @data: Data to pass to the function. |
| * |
| * Schedules the function @func for execution on the vCPU @cpu. |
| */ |
| void run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data); |
| |
| /** |
| * async_run_on_cpu: |
| * @cpu: The vCPU to run on. |
| * @func: The function to be executed. |
| * @data: Data to pass to the function. |
| * |
| * Schedules the function @func for execution on the vCPU @cpu asynchronously. |
| */ |
| void async_run_on_cpu(CPUState *cpu, void (*func)(void *data), void *data); |
| |
| /** |
| * qemu_get_cpu: |
| * @index: The CPUState@cpu_index value of the CPU to obtain. |
| * |
| * Gets a CPU matching @index. |
| * |
| * Returns: The CPU or %NULL if there is no matching CPU. |
| */ |
| CPUState *qemu_get_cpu(int index); |
| |
| /** |
| * cpu_exists: |
| * @id: Guest-exposed CPU ID to lookup. |
| * |
| * Search for CPU with specified ID. |
| * |
| * Returns: %true - CPU is found, %false - CPU isn't found. |
| */ |
| bool cpu_exists(int64_t id); |
| |
| /** |
| * cpu_throttle_set: |
| * @new_throttle_pct: Percent of sleep time. Valid range is 1 to 99. |
| * |
| * Throttles all vcpus by forcing them to sleep for the given percentage of |
| * time. A throttle_percentage of 25 corresponds to a 75% duty cycle roughly. |
| * (example: 10ms sleep for every 30ms awake). |
| * |
| * cpu_throttle_set can be called as needed to adjust new_throttle_pct. |
| * Once the throttling starts, it will remain in effect until cpu_throttle_stop |
| * is called. |
| */ |
| void cpu_throttle_set(int new_throttle_pct); |
| |
| /** |
| * cpu_throttle_stop: |
| * |
| * Stops the vcpu throttling started by cpu_throttle_set. |
| */ |
| void cpu_throttle_stop(void); |
| |
| /** |
| * cpu_throttle_active: |
| * |
| * Returns: %true if the vcpus are currently being throttled, %false otherwise. |
| */ |
| bool cpu_throttle_active(void); |
| |
| /** |
| * cpu_throttle_get_percentage: |
| * |
| * Returns the vcpu throttle percentage. See cpu_throttle_set for details. |
| * |
| * Returns: The throttle percentage in range 1 to 99. |
| */ |
| int cpu_throttle_get_percentage(void); |
| |
| #ifndef CONFIG_USER_ONLY |
| |
| typedef void (*CPUInterruptHandler)(CPUState *, int); |
| |
| extern CPUInterruptHandler cpu_interrupt_handler; |
| |
| /** |
| * cpu_interrupt: |
| * @cpu: The CPU to set an interrupt on. |
| * @mask: The interupts to set. |
| * |
| * Invokes the interrupt handler. |
| */ |
| static inline void cpu_interrupt(CPUState *cpu, int mask) |
| { |
| cpu_interrupt_handler(cpu, mask); |
| } |
| |
| #else /* USER_ONLY */ |
| |
| void cpu_interrupt(CPUState *cpu, int mask); |
| |
| #endif /* USER_ONLY */ |
| |
| #ifdef CONFIG_SOFTMMU |
| static inline void cpu_unassigned_access(CPUState *cpu, hwaddr addr, |
| bool is_write, bool is_exec, |
| int opaque, unsigned size) |
| { |
| CPUClass *cc = CPU_GET_CLASS(cpu); |
| |
| if (cc->do_unassigned_access) { |
| cc->do_unassigned_access(cpu, addr, is_write, is_exec, opaque, size); |
| } |
| } |
| |
| static inline void cpu_unaligned_access(CPUState *cpu, vaddr addr, |
| MMUAccessType access_type, |
| int mmu_idx, uintptr_t retaddr, |
| unsigned size) |
| { |
| CPUClass *cc = CPU_GET_CLASS(cpu); |
| |
| cc->do_unaligned_access(cpu, addr, access_type, mmu_idx, retaddr, size); |
| } |
| #endif |
| |
| /** |
| * cpu_set_pc: |
| * @cpu: The CPU to set the program counter for. |
| * @addr: Program counter value. |
| * |
| * Sets the program counter for a CPU. |
| */ |
| static inline void cpu_set_pc(CPUState *cpu, vaddr addr) |
| { |
| CPUClass *cc = CPU_GET_CLASS(cpu); |
| |
| cc->set_pc(cpu, addr); |
| } |
| |
| /** |
| * cpu_reset_interrupt: |
| * @cpu: The CPU to clear the interrupt on. |
| * @mask: The interrupt mask to clear. |
| * |
| * Resets interrupts on the vCPU @cpu. |
| */ |
| void cpu_reset_interrupt(CPUState *cpu, int mask); |
| |
| /** |
| * cpu_exit: |
| * @cpu: The CPU to exit. |
| * |
| * Requests the CPU @cpu to exit execution. |
| */ |
| void cpu_exit(CPUState *cpu); |
| |
| /** |
| * cpu_resume: |
| * @cpu: The CPU to resume. |
| * |
| * Resumes CPU, i.e. puts CPU into runnable state. |
| */ |
| void cpu_resume(CPUState *cpu); |
| |
| /** |
| * cpu_remove: |
| * @cpu: The CPU to remove. |
| * |
| * Requests the CPU to be removed. |
| */ |
| void cpu_remove(CPUState *cpu); |
| |
| /** |
| * cpu_remove_sync: |
| * @cpu: The CPU to remove. |
| * |
| * Requests the CPU to be removed and waits till it is removed. |
| */ |
| void cpu_remove_sync(CPUState *cpu); |
| |
| /** |
| * qemu_init_vcpu: |
| * @cpu: The vCPU to initialize. |
| * |
| * Initializes a vCPU. |
| */ |
| void qemu_init_vcpu(CPUState *cpu); |
| |
| #define SSTEP_ENABLE 0x1 /* Enable simulated HW single stepping */ |
| #define SSTEP_NOIRQ 0x2 /* Do not use IRQ while single stepping */ |
| #define SSTEP_NOTIMER 0x4 /* Do not Timers while single stepping */ |
| |
| /** |
| * cpu_single_step: |
| * @cpu: CPU to the flags for. |
| * @enabled: Flags to enable. |
| * |
| * Enables or disables single-stepping for @cpu. |
| */ |
| void cpu_single_step(CPUState *cpu, int enabled); |
| |
| /* Breakpoint/watchpoint flags */ |
| #define BP_MEM_READ 0x01 |
| #define BP_MEM_WRITE 0x02 |
| #define BP_MEM_ACCESS (BP_MEM_READ | BP_MEM_WRITE) |
| #define BP_STOP_BEFORE_ACCESS 0x04 |
| /* 0x08 currently unused */ |
| #define BP_GDB 0x10 |
| #define BP_CPU 0x20 |
| #define BP_ANY (BP_GDB | BP_CPU) |
| #define BP_WATCHPOINT_HIT_READ 0x40 |
| #define BP_WATCHPOINT_HIT_WRITE 0x80 |
| #define BP_WATCHPOINT_HIT (BP_WATCHPOINT_HIT_READ | BP_WATCHPOINT_HIT_WRITE) |
| |
| int cpu_breakpoint_insert(CPUState *cpu, vaddr pc, int flags, |
| CPUBreakpoint **breakpoint); |
| int cpu_breakpoint_remove(CPUState *cpu, vaddr pc, int flags); |
| void cpu_breakpoint_remove_by_ref(CPUState *cpu, CPUBreakpoint *breakpoint); |
| void cpu_breakpoint_remove_all(CPUState *cpu, int mask); |
| |
| /* Return true if PC matches an installed breakpoint. */ |
| static inline bool cpu_breakpoint_test(CPUState *cpu, vaddr pc, int mask) |
| { |
| CPUBreakpoint *bp; |
| |
| if (unlikely(!QTAILQ_EMPTY(&cpu->breakpoints))) { |
| QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) { |
| if (bp->pc == pc && (bp->flags & mask)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| int cpu_watchpoint_insert(CPUState *cpu, vaddr addr, vaddr len, |
| int flags, CPUWatchpoint **watchpoint); |
| int cpu_watchpoint_remove(CPUState *cpu, vaddr addr, |
| vaddr len, int flags); |
| void cpu_watchpoint_remove_by_ref(CPUState *cpu, CPUWatchpoint *watchpoint); |
| void cpu_watchpoint_remove_all(CPUState *cpu, int mask); |
| |
| /** |
| * cpu_get_address_space: |
| * @cpu: CPU to get address space from |
| * @asidx: index identifying which address space to get |
| * |
| * Return the requested address space of this CPU. @asidx |
| * specifies which address space to read. |
| */ |
| AddressSpace *cpu_get_address_space(CPUState *cpu, int asidx); |
| |
| void QEMU_NORETURN cpu_abort(CPUState *cpu, const char *fmt, ...) |
| GCC_FMT_ATTR(2, 3); |
| void cpu_exec_exit(CPUState *cpu); |
| |
| #ifdef CONFIG_SOFTMMU |
| extern const struct VMStateDescription vmstate_cpu_common; |
| #else |
| #define vmstate_cpu_common vmstate_dummy |
| #endif |
| |
| #define VMSTATE_CPU() { \ |
| .name = "parent_obj", \ |
| .size = sizeof(CPUState), \ |
| .vmsd = &vmstate_cpu_common, \ |
| .flags = VMS_STRUCT, \ |
| .offset = 0, \ |
| } |
| |
| #define UNASSIGNED_CPU_INDEX -1 |
| |
| #endif |