Revision f753ff16 hw/pc.c
| b/hw/pc.c | ||
|---|---|---|
| 754 | 754 |
nb_ne2k++; |
| 755 | 755 |
} |
| 756 | 756 |
|
| 757 |
static int load_option_rom(const char *oprom, target_phys_addr_t start, |
|
| 758 |
target_phys_addr_t end) |
|
| 759 |
{
|
|
| 760 |
int size; |
|
| 761 |
|
|
| 762 |
size = get_image_size(oprom); |
|
| 763 |
if (size > 0 && start + size > end) {
|
|
| 764 |
fprintf(stderr, "Not enough space to load option rom '%s'\n", |
|
| 765 |
oprom); |
|
| 766 |
exit(1); |
|
| 767 |
} |
|
| 768 |
size = load_image_targphys(oprom, start, end - start); |
|
| 769 |
if (size < 0) {
|
|
| 770 |
fprintf(stderr, "Could not load option rom '%s'\n", oprom); |
|
| 771 |
exit(1); |
|
| 772 |
} |
|
| 773 |
/* Round up optiom rom size to the next 2k boundary */ |
|
| 774 |
size = (size + 2047) & ~2047; |
|
| 775 |
return size; |
|
| 776 |
} |
|
| 777 |
|
|
| 757 | 778 |
/* PC hardware initialisation */ |
| 758 | 779 |
static void pc_init1(ram_addr_t ram_size, int vga_ram_size, |
| 759 | 780 |
const char *boot_device, |
| ... | ... | |
| 763 | 784 |
{
|
| 764 | 785 |
char buf[1024]; |
| 765 | 786 |
int ret, linux_boot, i; |
| 766 |
ram_addr_t ram_addr, vga_ram_addr, bios_offset, vga_bios_offset, option_rom_start = 0;
|
|
| 787 |
ram_addr_t ram_addr, vga_ram_addr, bios_offset, option_rom_offset;
|
|
| 767 | 788 |
ram_addr_t below_4g_mem_size, above_4g_mem_size = 0; |
| 768 |
int bios_size, isa_bios_size, vga_bios_size;
|
|
| 789 |
int bios_size, isa_bios_size, oprom_area_size;
|
|
| 769 | 790 |
PCIBus *pci_bus; |
| 770 | 791 |
int piix3_devfn = -1; |
| 771 | 792 |
CPUState *env; |
| ... | ... | |
| 856 | 877 |
fprintf(stderr, "qemu: could not load PC BIOS '%s'\n", buf); |
| 857 | 878 |
exit(1); |
| 858 | 879 |
} |
| 859 |
|
|
| 860 |
if (using_vga) {
|
|
| 861 |
/* VGA BIOS load */ |
|
| 862 |
if (cirrus_vga_enabled) {
|
|
| 863 |
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_CIRRUS_FILENAME); |
|
| 864 |
} else {
|
|
| 865 |
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); |
|
| 866 |
} |
|
| 867 |
vga_bios_size = get_image_size(buf); |
|
| 868 |
if (vga_bios_size <= 0 || vga_bios_size > 65536) |
|
| 869 |
goto vga_bios_error; |
|
| 870 |
vga_bios_offset = qemu_ram_alloc(65536); |
|
| 871 |
|
|
| 872 |
ret = load_image(buf, phys_ram_base + vga_bios_offset); |
|
| 873 |
if (ret != vga_bios_size) {
|
|
| 874 |
vga_bios_error: |
|
| 875 |
fprintf(stderr, "qemu: could not load VGA BIOS '%s'\n", buf); |
|
| 876 |
exit(1); |
|
| 877 |
} |
|
| 878 |
/* Round up vga bios size to the next 2k boundary */ |
|
| 879 |
vga_bios_size = (vga_bios_size + 2047) & ~2047; |
|
| 880 |
option_rom_start = 0xc0000 + vga_bios_size; |
|
| 881 |
|
|
| 882 |
/* setup basic memory access */ |
|
| 883 |
cpu_register_physical_memory(0xc0000, vga_bios_size, |
|
| 884 |
vga_bios_offset | IO_MEM_ROM); |
|
| 885 |
} |
|
| 886 |
|
|
| 887 |
/* No point in placing option roms before this address, since bochs bios |
|
| 888 |
* will only start looking for it at 0xc8000 */ |
|
| 889 |
if (option_rom_start < 0xc8000) |
|
| 890 |
option_rom_start = 0xc8000; |
|
| 891 |
|
|
| 892 |
|
|
| 893 | 880 |
/* map the last 128KB of the BIOS in ISA space */ |
| 894 | 881 |
isa_bios_size = bios_size; |
| 895 | 882 |
if (isa_bios_size > (128 * 1024)) |
| ... | ... | |
| 898 | 885 |
isa_bios_size, |
| 899 | 886 |
(bios_offset + bios_size - isa_bios_size) | IO_MEM_ROM); |
| 900 | 887 |
|
| 901 |
{
|
|
| 902 |
ram_addr_t option_rom_offset; |
|
| 903 |
int size, offset; |
|
| 904 |
|
|
| 905 |
offset = option_rom_start; |
|
| 906 |
if (linux_boot) {
|
|
| 907 |
option_rom_offset = qemu_ram_alloc(TARGET_PAGE_SIZE); |
|
| 908 |
load_linux(phys_ram_base + option_rom_offset, |
|
| 909 |
kernel_filename, initrd_filename, kernel_cmdline); |
|
| 910 |
cpu_register_physical_memory(option_rom_start, TARGET_PAGE_SIZE, |
|
| 911 |
option_rom_offset | IO_MEM_ROM); |
|
| 912 |
offset += TARGET_PAGE_SIZE; |
|
| 913 |
} |
|
| 914 | 888 |
|
| 915 |
for (i = 0; i < nb_option_roms; i++) {
|
|
| 916 |
size = get_image_size(option_rom[i]); |
|
| 917 |
if (size < 0) {
|
|
| 918 |
fprintf(stderr, "Could not load option rom '%s'\n", |
|
| 919 |
option_rom[i]); |
|
| 920 |
exit(1); |
|
| 921 |
} |
|
| 922 |
if (size > (0xe0000 - offset)) |
|
| 923 |
goto option_rom_error; |
|
| 924 |
option_rom_offset = qemu_ram_alloc(size); |
|
| 925 |
ret = load_image(option_rom[i], phys_ram_base + option_rom_offset); |
|
| 926 |
if (ret != size) {
|
|
| 927 |
option_rom_error: |
|
| 928 |
fprintf(stderr, "Could not fit %soption roms in available space\n", using_vga ? "VGA bios and " : ""); |
|
| 929 |
exit(1); |
|
| 930 |
} |
|
| 931 |
size = (size + 4095) & ~4095; |
|
| 932 |
cpu_register_physical_memory(offset, size, option_rom_offset | IO_MEM_ROM); |
|
| 933 |
offset += size; |
|
| 889 |
|
|
| 890 |
option_rom_offset = qemu_ram_alloc(0x20000); |
|
| 891 |
oprom_area_size = 0; |
|
| 892 |
cpu_register_physical_memory(0xc0000, 0x20000, |
|
| 893 |
option_rom_offset | IO_MEM_ROM); |
|
| 894 |
|
|
| 895 |
if (using_vga) {
|
|
| 896 |
/* VGA BIOS load */ |
|
| 897 |
if (cirrus_vga_enabled) {
|
|
| 898 |
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, |
|
| 899 |
VGABIOS_CIRRUS_FILENAME); |
|
| 900 |
} else {
|
|
| 901 |
snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_FILENAME); |
|
| 934 | 902 |
} |
| 903 |
oprom_area_size = load_option_rom(buf, 0xc0000, 0xe0000); |
|
| 904 |
} |
|
| 905 |
/* Although video roms can grow larger than 0x8000, the area between |
|
| 906 |
* 0xc0000 - 0xc8000 is reserved for them. It means we won't be looking |
|
| 907 |
* for any other kind of option rom inside this area */ |
|
| 908 |
if (oprom_area_size < 0x8000) |
|
| 909 |
oprom_area_size = 0x8000; |
|
| 910 |
|
|
| 911 |
if (linux_boot) {
|
|
| 912 |
load_linux(phys_ram_base + option_rom_offset + oprom_area_size, |
|
| 913 |
kernel_filename, initrd_filename, kernel_cmdline); |
|
| 914 |
oprom_area_size += 2048; |
|
| 915 |
} |
|
| 916 |
|
|
| 917 |
for (i = 0; i < nb_option_roms; i++) {
|
|
| 918 |
oprom_area_size += load_option_rom(option_rom[i], |
|
| 919 |
0xc0000 + oprom_area_size, 0xe0000); |
|
| 935 | 920 |
} |
| 936 | 921 |
|
| 937 | 922 |
/* map all the bios at the top of memory */ |
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