diff options
| author | BALATON Zoltan <balaton@eik.bme.hu> | 2020-10-17 17:47:29 +0200 |
|---|---|---|
| committer | Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk> | 2020-10-19 08:11:07 +0100 |
| commit | 464c73e8eb0f52b5644768c095e553cf97cb041b (patch) | |
| tree | 9ff5093133c5ffb761f5f6aba6f0a9a690cc1696 /hw/ppc | |
| parent | 3e7e134d827790c3714cae1d5b8aff8612000116 (diff) | |
| download | qemu-464c73e8eb0f52b5644768c095e553cf97cb041b.zip qemu-464c73e8eb0f52b5644768c095e553cf97cb041b.tar.gz qemu-464c73e8eb0f52b5644768c095e553cf97cb041b.tar.bz2 | |
mac_oldworld: Allow loading binary ROM image
The beige G3 Power Macintosh has a 4MB firmware ROM. Fix the size of
the rom region and fall back to loading a binary image with -bios if
loading ELF image failed. This allows testing emulation with a ROM
image from real hardware as well as using an ELF OpenBIOS image.
Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Message-Id: <20201017155139.5A36A746331@zero.eik.bme.hu>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Diffstat (limited to 'hw/ppc')
| -rw-r--r-- | hw/ppc/mac_oldworld.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c index 05e46ee..0117ae1 100644 --- a/hw/ppc/mac_oldworld.c +++ b/hw/ppc/mac_oldworld.c @@ -59,6 +59,8 @@ #define NDRV_VGA_FILENAME "qemu_vga.ndrv" #define GRACKLE_BASE 0xfec00000 +#define PROM_BASE 0xffc00000 +#define PROM_SIZE (4 * MiB) static void fw_cfg_boot_set(void *opaque, const char *boot_device, Error **errp) @@ -100,6 +102,7 @@ static void ppc_heathrow_init(MachineState *machine) SysBusDevice *s; DeviceState *dev, *pic_dev; BusState *adb_bus; + uint64_t bios_addr; int bios_size; unsigned int smp_cpus = machine->smp.cpus; uint16_t ppc_boot_device; @@ -128,24 +131,32 @@ static void ppc_heathrow_init(MachineState *machine) memory_region_add_subregion(sysmem, 0, machine->ram); - /* allocate and load BIOS */ - memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", BIOS_SIZE, + /* allocate and load firmware ROM */ + memory_region_init_rom(bios, NULL, "ppc_heathrow.bios", PROM_SIZE, &error_fatal); + memory_region_add_subregion(sysmem, PROM_BASE, bios); - if (bios_name == NULL) + if (!bios_name) { bios_name = PROM_FILENAME; + } filename = qemu_find_file(QEMU_FILE_TYPE_BIOS, bios_name); - memory_region_add_subregion(sysmem, PROM_ADDR, bios); - - /* Load OpenBIOS (ELF) */ if (filename) { - bios_size = load_elf(filename, NULL, 0, NULL, NULL, NULL, NULL, NULL, - 1, PPC_ELF_MACHINE, 0, 0); + /* Load OpenBIOS (ELF) */ + bios_size = load_elf(filename, NULL, NULL, NULL, NULL, &bios_addr, + NULL, NULL, 1, PPC_ELF_MACHINE, 0, 0); + /* Unfortunately, load_elf sign-extends reading elf32 */ + bios_addr = (uint32_t)bios_addr; + + if (bios_size <= 0) { + /* or load binary ROM image */ + bios_size = load_image_targphys(filename, PROM_BASE, PROM_SIZE); + bios_addr = PROM_BASE; + } g_free(filename); } else { bios_size = -1; } - if (bios_size < 0 || bios_size > BIOS_SIZE) { + if (bios_size < 0 || bios_addr - PROM_BASE + bios_size > PROM_SIZE) { error_report("could not load PowerPC bios '%s'", bios_name); exit(1); } |