#define BIOS_FILENAME "ppc_rom.bin"
#define VGABIOS_FILENAME "video.x"
#define NVRAM_SIZE 0x2000
+#define PROM_FILENAME "openbios-ppc32"
+#define PROM_ADDR 0xfff00000
#define KERNEL_LOAD_ADDR 0x01000000
#define INITRD_LOAD_ADDR 0x01800000
/* allocate and load BIOS */
bios_offset = qemu_ram_alloc(BIOS_SIZE);
if (bios_name == NULL)
- bios_name = BIOS_FILENAME;
+ bios_name = PROM_FILENAME;
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, bios_name);
- bios_size = load_image(buf, phys_ram_base + bios_offset);
+ cpu_register_physical_memory(PROM_ADDR, BIOS_SIZE, bios_offset | IO_MEM_ROM);
+
+ /* Load OpenBIOS (ELF) */
+ bios_size = load_elf(buf, 0, NULL, NULL, NULL);
if (bios_size < 0 || bios_size > BIOS_SIZE) {
cpu_abort(env, "qemu: could not load PowerPC bios '%s'\n", buf);
exit(1);
}
- if (bios_size > 0x00080000) {
- /* As the NVRAM is located at 0xFFF04000, we cannot use 1 MB BIOSes */
- cpu_abort(env, "G3BW Mac hardware can not handle 1 MB BIOS\n");
- }
- cpu_register_physical_memory((uint32_t)(-bios_size),
- bios_size, bios_offset | IO_MEM_ROM);
/* allocate and load VGA BIOS */
vga_bios_offset = qemu_ram_alloc(VGA_BIOS_SIZE);
QEMU uses the Open Hack'Ware Open Firmware Compatible BIOS available at
@url{http://perso.magic.fr/l_indien/OpenHackWare/index.htm}.
+Since version 0.9.1, QEMU uses OpenBIOS @url{http://www.openbios.org/}
+for the g3bw PowerMac machine. OpenBIOS is a free (GPL v2) portable
+firmware implementation. The goal is to implement a 100% IEEE
+1275-1994 (referred to as Open Firmware) compliant firmware.
+
@c man begin OPTIONS
The following options are specific to the PowerPC emulation: