diff options
author | 2015-08-28 09:58:54 +0800 | |
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committer | 2015-09-01 12:44:00 +0800 | |
commit | e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb (patch) | |
tree | 66b09f592c55df2878107a468a91d21506104d3f /qemu/hw/m68k/dummy_m68k.c | |
parent | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (diff) |
Add qemu 2.4.0
Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>
Diffstat (limited to 'qemu/hw/m68k/dummy_m68k.c')
-rw-r--r-- | qemu/hw/m68k/dummy_m68k.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/qemu/hw/m68k/dummy_m68k.c b/qemu/hw/m68k/dummy_m68k.c new file mode 100644 index 000000000..5b77d930e --- /dev/null +++ b/qemu/hw/m68k/dummy_m68k.c @@ -0,0 +1,86 @@ +/* + * 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(MachineState *machine) +{ + ram_addr_t ram_size = machine->ram_size; + const char *cpu_model = machine->cpu_model; + const char *kernel_filename = machine->kernel_filename; + M68kCPU *cpu; + 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"; + cpu = cpu_m68k_init(cpu_model); + if (!cpu) { + fprintf(stderr, "Unable to find m68k CPU definition\n"); + exit(1); + } + env = &cpu->env; + + /* Initialize CPU registers. */ + env->vbr = 0; + + /* RAM at address zero */ + memory_region_allocate_system_memory(ram, NULL, "dummy_m68k.ram", + ram_size); + 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, + 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); |