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