mirror of
https://github.com/xcat2/xcat-dep.git
synced 2024-11-27 03:39:11 +00:00
92 lines
3.5 KiB
Diff
92 lines
3.5 KiB
Diff
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diff -urN qemu-kvm-0.10.5/hw/pc.c qemu-kvm-0.10.5-extoptrom//hw/pc.c
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--- qemu-kvm-0.10.5/hw/pc.c 2009-05-21 05:05:19.000000000 -0400
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+++ qemu-kvm-0.10.5-extoptrom//hw/pc.c 2009-06-23 09:32:02.000000000 -0400
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@@ -818,7 +818,7 @@
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{
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char buf[1024];
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int ret, linux_boot, i;
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- ram_addr_t ram_addr, vga_ram_addr, bios_offset, vga_bios_offset;
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+ ram_addr_t ram_addr, vga_ram_addr, bios_offset, vga_bios_offset, option_rom_start = 0;
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ram_addr_t below_4g_mem_size, above_4g_mem_size = 0;
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int bios_size, isa_bios_size, vga_bios_size;
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int pci_option_rom_offset;
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@@ -830,6 +830,9 @@
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int index;
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BlockDriverState *hd[MAX_IDE_BUS * MAX_IDE_DEVS];
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BlockDriverState *fd[MAX_FD];
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+ int using_vga = cirrus_vga_enabled || std_vga_enabled || vmsvga_enabled;
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+
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+
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if (ram_size >= 0xe0000000 ) {
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above_4g_mem_size = ram_size - 0xe0000000;
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@@ -905,7 +908,7 @@
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exit(1);
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}
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- if (cirrus_vga_enabled || std_vga_enabled || vmsvga_enabled) {
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+ if (using_vga) {
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/* VGA BIOS load */
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if (cirrus_vga_enabled) {
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snprintf(buf, sizeof(buf), "%s/%s", bios_dir, VGABIOS_CIRRUS_FILENAME);
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@@ -923,11 +926,21 @@
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fprintf(stderr, "qemu: could not load VGA BIOS '%s'\n", buf);
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exit(1);
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}
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+ /* Round up vga bios size to the next 2k boundary */
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+ vga_bios_size = (vga_bios_size + 2047) & ~2047;
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+ option_rom_start = 0xc0000 + vga_bios_size;
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+
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/* setup basic memory access */
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- cpu_register_physical_memory(0xc0000, 0x10000,
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+ cpu_register_physical_memory(0xc0000, vga_bios_size,
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vga_bios_offset | IO_MEM_ROM);
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}
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+ /* No point in placing option roms before this address, since bochs bios
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+ * will only start looking for it at 0xc8000 */
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+ if (option_rom_start < 0xc8000)
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+ option_rom_start = 0xc8000;
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+
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+
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/* map the last 128KB of the BIOS in ISA space */
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isa_bios_size = bios_size;
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@@ -949,14 +962,15 @@
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ram_addr_t option_rom_offset;
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int size, offset;
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- offset = 0;
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+ offset = option_rom_start;
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+
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if (linux_boot) {
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option_rom_offset = qemu_ram_alloc(TARGET_PAGE_SIZE);
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- cpu_register_physical_memory(0xd0000, TARGET_PAGE_SIZE,
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+ cpu_register_physical_memory(option_rom_start, TARGET_PAGE_SIZE,
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option_rom_offset);
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load_linux(0xd0000,
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kernel_filename, initrd_filename, kernel_cmdline, below_4g_mem_size);
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- offset = TARGET_PAGE_SIZE;
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+ offset += TARGET_PAGE_SIZE;
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}
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for (i = 0; i < nb_option_roms; i++) {
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@@ -966,7 +980,7 @@
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option_rom[i]);
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exit(1);
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}
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- if (size > (0x10000 - offset))
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+ if (size > (0xe0000 - offset))
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goto option_rom_error;
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option_rom_offset = qemu_ram_alloc(size);
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ret = load_image(option_rom[i], phys_ram_base + option_rom_offset);
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@@ -980,7 +994,7 @@
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initialization, and (optionally) marked readonly by the BIOS
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before INT 19h. See the PNPBIOS specification, appendix B.
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DDIM support is mandatory for proper PCI expansion ROM support. */
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- cpu_register_physical_memory(0xd0000 + offset,
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+ cpu_register_physical_memory(offset,
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size, option_rom_offset /* | IO_MEM_ROM */);
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option_rom_setup_reset(0xd0000 + offset, size);
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offset += size;
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