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Commit | Line | Data |
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ca02f319 PB |
1 | /* |
2 | * Dummy board with just RAM and CPU for use as an ISS. | |
3 | * | |
4 | * Copyright (c) 2007 CodeSourcery. | |
5 | * | |
8e31bf38 | 6 | * This code is licensed under the GPL |
ca02f319 PB |
7 | */ |
8 | ||
83c9f4ca PB |
9 | #include "hw/hw.h" |
10 | #include "hw/boards.h" | |
11 | #include "hw/loader.h" | |
ca20cf32 | 12 | #include "elf.h" |
022c62cb | 13 | #include "exec/address-spaces.h" |
ca02f319 PB |
14 | |
15 | #define KERNEL_LOAD_ADDR 0x10000 | |
16 | ||
17 | /* Board init. */ | |
18 | ||
3ef96221 | 19 | static void dummy_m68k_init(MachineState *machine) |
ca02f319 | 20 | { |
3ef96221 MA |
21 | ram_addr_t ram_size = machine->ram_size; |
22 | const char *cpu_model = machine->cpu_model; | |
23 | const char *kernel_filename = machine->kernel_filename; | |
7927df3a | 24 | CPUM68KState *env; |
cbdea0ca AK |
25 | MemoryRegion *address_space_mem = get_system_memory(); |
26 | MemoryRegion *ram = g_new(MemoryRegion, 1); | |
ca02f319 PB |
27 | int kernel_size; |
28 | uint64_t elf_entry; | |
a8170e5e | 29 | hwaddr entry; |
ca02f319 | 30 | |
ca02f319 PB |
31 | if (!cpu_model) |
32 | cpu_model = "cfv4e"; | |
cd08ce8f PB |
33 | env = cpu_init(cpu_model); |
34 | if (!env) { | |
35 | fprintf(stderr, "Unable to find m68k CPU definition\n"); | |
36 | exit(1); | |
ca02f319 PB |
37 | } |
38 | ||
39 | /* Initialize CPU registers. */ | |
40 | env->vbr = 0; | |
41 | ||
42 | /* RAM at address zero */ | |
49946538 | 43 | memory_region_init_ram(ram, NULL, "dummy_m68k.ram", ram_size, &error_abort); |
c5705a77 | 44 | vmstate_register_ram_global(ram); |
cbdea0ca | 45 | memory_region_add_subregion(address_space_mem, 0, ram); |
ca02f319 PB |
46 | |
47 | /* Load kernel. */ | |
48 | if (kernel_filename) { | |
409dbce5 AJ |
49 | kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, |
50 | NULL, NULL, 1, ELF_MACHINE, 0); | |
ca02f319 PB |
51 | entry = elf_entry; |
52 | if (kernel_size < 0) { | |
25bda50a MF |
53 | kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL, |
54 | NULL, NULL); | |
ca02f319 PB |
55 | } |
56 | if (kernel_size < 0) { | |
dcac9679 PB |
57 | kernel_size = load_image_targphys(kernel_filename, |
58 | KERNEL_LOAD_ADDR, | |
59 | ram_size - KERNEL_LOAD_ADDR); | |
ca02f319 PB |
60 | entry = KERNEL_LOAD_ADDR; |
61 | } | |
62 | if (kernel_size < 0) { | |
63 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
64 | kernel_filename); | |
65 | exit(1); | |
66 | } | |
67 | } else { | |
68 | entry = 0; | |
69 | } | |
70 | env->pc = entry; | |
71 | } | |
72 | ||
f80f9ec9 | 73 | static QEMUMachine dummy_m68k_machine = { |
4b32e168 AL |
74 | .name = "dummy", |
75 | .desc = "Dummy board", | |
76 | .init = dummy_m68k_init, | |
ca02f319 | 77 | }; |
f80f9ec9 AL |
78 | |
79 | static void dummy_m68k_machine_init(void) | |
80 | { | |
81 | qemu_register_machine(&dummy_m68k_machine); | |
82 | } | |
83 | ||
84 | machine_init(dummy_m68k_machine_init); |