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/*
* Dummy board with just RAM and CPU for use as an ISS.
*
* Copyright (c) 2007 CodeSourcery.
*
* This code is licenced under the GPL
*/
#include "hw.h"
#include "sysemu.h"
#include "boards.h"
#include "loader.h"
#include "elf.h"
#define KERNEL_LOAD_ADDR 0x10000
/* Board init. */
static void dummy_m68k_init(ram_addr_t ram_size,
const char *boot_device,
const char *kernel_filename, const char *kernel_cmdline,
const char *initrd_filename, const char *cpu_model)
{
CPUState *env;
int kernel_size;
uint64_t elf_entry;
target_phys_addr_t 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 */
cpu_register_physical_memory(0, ram_size,
qemu_ram_alloc(ram_size) | IO_MEM_RAM);
/* Load kernel. */
if (kernel_filename) {
kernel_size = load_elf(kernel_filename, 0, &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);
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