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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 | ||
d8416665 | 9 | #include "qemu/osdep.h" |
4771d756 PB |
10 | #include "qemu-common.h" |
11 | #include "cpu.h" | |
83c9f4ca PB |
12 | #include "hw/hw.h" |
13 | #include "hw/boards.h" | |
14 | #include "hw/loader.h" | |
ca20cf32 | 15 | #include "elf.h" |
022c62cb | 16 | #include "exec/address-spaces.h" |
ca02f319 PB |
17 | |
18 | #define KERNEL_LOAD_ADDR 0x10000 | |
19 | ||
20 | /* Board init. */ | |
21 | ||
3ef96221 | 22 | static void dummy_m68k_init(MachineState *machine) |
ca02f319 | 23 | { |
3ef96221 MA |
24 | ram_addr_t ram_size = machine->ram_size; |
25 | const char *cpu_model = machine->cpu_model; | |
26 | const char *kernel_filename = machine->kernel_filename; | |
eeff620f | 27 | M68kCPU *cpu; |
7927df3a | 28 | CPUM68KState *env; |
cbdea0ca AK |
29 | MemoryRegion *address_space_mem = get_system_memory(); |
30 | MemoryRegion *ram = g_new(MemoryRegion, 1); | |
ca02f319 PB |
31 | int kernel_size; |
32 | uint64_t elf_entry; | |
a8170e5e | 33 | hwaddr entry; |
ca02f319 | 34 | |
ca02f319 PB |
35 | if (!cpu_model) |
36 | cpu_model = "cfv4e"; | |
eeff620f EH |
37 | cpu = cpu_m68k_init(cpu_model); |
38 | if (!cpu) { | |
cd08ce8f PB |
39 | fprintf(stderr, "Unable to find m68k CPU definition\n"); |
40 | exit(1); | |
ca02f319 | 41 | } |
eeff620f | 42 | env = &cpu->env; |
ca02f319 PB |
43 | |
44 | /* Initialize CPU registers. */ | |
45 | env->vbr = 0; | |
46 | ||
47 | /* RAM at address zero */ | |
1d5bfde1 DM |
48 | memory_region_allocate_system_memory(ram, NULL, "dummy_m68k.ram", |
49 | ram_size); | |
cbdea0ca | 50 | memory_region_add_subregion(address_space_mem, 0, ram); |
ca02f319 PB |
51 | |
52 | /* Load kernel. */ | |
53 | if (kernel_filename) { | |
409dbce5 | 54 | kernel_size = load_elf(kernel_filename, NULL, NULL, &elf_entry, |
7ef295ea | 55 | NULL, NULL, 1, EM_68K, 0, 0); |
ca02f319 PB |
56 | entry = elf_entry; |
57 | if (kernel_size < 0) { | |
25bda50a MF |
58 | kernel_size = load_uimage(kernel_filename, &entry, NULL, NULL, |
59 | NULL, NULL); | |
ca02f319 PB |
60 | } |
61 | if (kernel_size < 0) { | |
dcac9679 PB |
62 | kernel_size = load_image_targphys(kernel_filename, |
63 | KERNEL_LOAD_ADDR, | |
64 | ram_size - KERNEL_LOAD_ADDR); | |
ca02f319 PB |
65 | entry = KERNEL_LOAD_ADDR; |
66 | } | |
67 | if (kernel_size < 0) { | |
68 | fprintf(stderr, "qemu: could not load kernel '%s'\n", | |
69 | kernel_filename); | |
70 | exit(1); | |
71 | } | |
72 | } else { | |
73 | entry = 0; | |
74 | } | |
75 | env->pc = entry; | |
76 | } | |
77 | ||
e264d29d | 78 | static void dummy_m68k_machine_init(MachineClass *mc) |
f80f9ec9 | 79 | { |
e264d29d EH |
80 | mc->desc = "Dummy board"; |
81 | mc->init = dummy_m68k_init; | |
f80f9ec9 AL |
82 | } |
83 | ||
e264d29d | 84 | DEFINE_MACHINE("dummy", dummy_m68k_machine_init) |