c165473269
We set default boot order "cad" in every single machine definition except "pseries" and "moxiesim", even though very few boards actually care for boot order, and "cad" makes sense for even fewer. Machines that care: * pc and its variants Accept up to three letters 'a', 'b' (undocumented alias for 'a'), 'c', 'd' and 'n'. Reject all others (fatal with -boot). * nseries (n800, n810) Check whether order starts with 'n'. Silently ignored otherwise. * prep, g3beige, mac99 Extract the first character the machine understands (subset of 'a'..'f'). Silently ignored otherwise. * spapr Accept an arbitrary string (vl.c restricts it to contain only 'a'..'p', no duplicates). * sun4[mdc] Use the first character. Silently ignored otherwise. Strip characters these machines ignore from their default boot order. For all other machines, remove the unused default boot order alltogether. Note that my rename of QEMUMachine member boot_order to default_boot_order and QEMUMachineInitArgs member boot_device to boot_order has a welcome side effect: it makes every use of boot orders visible in this patch, for easy review. Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
84 lines
2.2 KiB
C
84 lines
2.2 KiB
C
/*
|
|
* 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(QEMUMachineInitArgs *args)
|
|
{
|
|
ram_addr_t ram_size = args->ram_size;
|
|
const char *cpu_model = args->cpu_model;
|
|
const char *kernel_filename = args->kernel_filename;
|
|
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";
|
|
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 */
|
|
memory_region_init_ram(ram, NULL, "dummy_m68k.ram", ram_size);
|
|
vmstate_register_ram_global(ram);
|
|
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);
|
|
}
|
|
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);
|