| /* |
| * Dummy board with just RAM and CPU for use as an ISS. |
| * |
| * Copyright (c) 2007 CodeSourcery. |
| * |
| * This code is licensed under the GPL |
| */ |
| |
| #include "hw/hw.h" |
| #include "hw/boards.h" |
| #include "hw/loader.h" |
| #include "elf.h" |
| #include "exec/address-spaces.h" |
| |
| #define KERNEL_LOAD_ADDR 0x10000 |
| |
| /* Board init. */ |
| |
| static void dummy_m68k_init(QEMUMachineInitArgs *args) |
| { |
| ram_addr_t ram_size = args->ram_size; |
| const char *cpu_model = args->cpu_model; |
| const char *kernel_filename = args->kernel_filename; |
| CPUM68KState *env; |
| MemoryRegion *address_space_mem = get_system_memory(); |
| MemoryRegion *ram = g_new(MemoryRegion, 1); |
| int kernel_size; |
| uint64_t elf_entry; |
| hwaddr entry; |
| |
| if (!cpu_model) |
| cpu_model = "cfv4e"; |
| env = cpu_init(cpu_model); |
| if (!env) { |
| fprintf(stderr, "Unable to find m68k CPU definition\n"); |
| exit(1); |
| } |
| |
| /* Initialize CPU registers. */ |
| env->vbr = 0; |
| |
| /* RAM at address zero */ |
| memory_region_init_ram(ram, NULL, "dummy_m68k.ram", ram_size); |
| vmstate_register_ram_global(ram); |
| memory_region_add_subregion(address_space_mem, 0, ram); |
| |
| /* Load kernel. */ |
| if (kernel_filename) { |
| kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, |
| NULL, NULL, 1, ELF_MACHINE, 0); |
| entry = elf_entry; |
| if (kernel_size < 0) { |
| kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL); |
| } |
| if (kernel_size < 0) { |
| kernel_size = load_image_targphys(kernel_filename, |
| KERNEL_LOAD_ADDR, |
| ram_size - KERNEL_LOAD_ADDR); |
| entry = KERNEL_LOAD_ADDR; |
| } |
| if (kernel_size < 0) { |
| fprintf(stderr, "qemu: could not load kernel '%s'\n", |
| kernel_filename); |
| exit(1); |
| } |
| } else { |
| entry = 0; |
| } |
| env->pc = entry; |
| } |
| |
| static QEMUMachine dummy_m68k_machine = { |
| .name = "dummy", |
| .desc = "Dummy board", |
| .init = dummy_m68k_init, |
| }; |
| |
| static void dummy_m68k_machine_init(void) |
| { |
| qemu_register_machine(&dummy_m68k_machine); |
| } |
| |
| machine_init(dummy_m68k_machine_init); |