@@ -654,8 +654,7 @@ void xen_load_linux(PCMachineState *pcms)
x86_load_linux(x86ms, fw_cfg, PC_FW_DATA, pcmc->pvh_enabled);
for (i = 0; i < nb_option_roms; i++) {
- assert(!strcmp(option_rom[i].name, "linuxboot.bin") ||
- !strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
+ assert(!strcmp(option_rom[i].name, "linuxboot_dma.bin") ||
!strcmp(option_rom[i].name, "pvh.bin") ||
!strcmp(option_rom[i].name, "multiboot_dma.bin"));
rom_add_option(option_rom[i].name, option_rom[i].bootindex);
@@ -63,7 +63,6 @@ blobs = [
'efi-vmxnet3.rom',
'qemu-nsis.bmp',
'multiboot_dma.bin',
- 'linuxboot.bin',
'linuxboot_dma.bin',
'kvmvapic.bin',
'pvh.bin',
@@ -2,7 +2,7 @@ include config.mak
SRC_DIR := $(TOPSRC_DIR)/pc-bios/optionrom
VPATH = $(SRC_DIR)
-all: multiboot_dma.bin linuxboot.bin linuxboot_dma.bin kvmvapic.bin pvh.bin
+all: multiboot_dma.bin linuxboot_dma.bin kvmvapic.bin pvh.bin
# Dummy command so that make thinks it has done something
@true
deleted file mode 100644
@@ -1,195 +0,0 @@
-/*
- * Linux Boot Option ROM
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, see <http://www.gnu.org/licenses/>.
- *
- * Copyright Novell Inc, 2009
- * Authors: Alexander Graf <agraf@suse.de>
- *
- * Based on code in hw/pc.c.
- */
-
-#include "optionrom.h"
-
-#define BOOT_ROM_PRODUCT "Linux loader"
-
-BOOT_ROM_START
-
-run_linuxboot:
-
- cli
- cld
-
- jmp copy_kernel
-boot_kernel:
-
- read_fw FW_CFG_SETUP_ADDR
-
- mov %eax, %ebx
- shr $4, %ebx
-
- /* All segments contain real_addr */
- mov %bx, %ds
- mov %bx, %es
- mov %bx, %fs
- mov %bx, %gs
- mov %bx, %ss
-
- /* CX = CS we want to jump to */
- add $0x20, %bx
- mov %bx, %cx
-
- /* SP = cmdline_addr-real_addr-16 */
- read_fw FW_CFG_CMDLINE_ADDR
- mov %eax, %ebx
- read_fw FW_CFG_SETUP_ADDR
- sub %eax, %ebx
- sub $16, %ebx
- mov %ebx, %esp
-
- /* Build indirect lret descriptor */
- pushw %cx /* CS */
- xor %ax, %ax
- pushw %ax /* IP = 0 */
-
- /* Clear registers */
- xor %eax, %eax
- xor %ebx, %ebx
- xor %ecx, %ecx
- xor %edx, %edx
- xor %edi, %edi
- xor %ebp, %ebp
-
- /* Jump to Linux */
- lret
-
-
-copy_kernel:
- /* Read info block in low memory (0x10000 or 0x90000) */
- read_fw FW_CFG_SETUP_ADDR
- shr $4, %eax
- mov %eax, %es
- xor %edi, %edi
- read_fw_blob_addr32_edi(FW_CFG_SETUP)
-
- cmpw $0x203, %es:0x206 // if protocol >= 0x203
- jae 1f // have initrd_max
- movl $0x37ffffff, %es:0x22c // else assume 0x37ffffff
-1:
-
- /* Check if using kernel-specified initrd address */
- read_fw FW_CFG_INITRD_ADDR
- mov %eax, %edi // (load_kernel wants it in %edi)
- read_fw FW_CFG_INITRD_SIZE // find end of initrd
- add %edi, %eax
- xor %es:0x22c, %eax // if it matches es:0x22c
- and $-4096, %eax // (apart from padding for page)
- jz load_kernel // then initrd is not at top
- // of memory
-
- /* pc.c placed the initrd at end of memory. Compute a better
- * initrd address based on e801 data.
- */
- mov $0xe801, %ax
- xor %cx, %cx
- xor %dx, %dx
- int $0x15
-
- /* Output could be in AX/BX or CX/DX */
- or %cx, %cx
- jnz 1f
- or %dx, %dx
- jnz 1f
- mov %ax, %cx
- mov %bx, %dx
-1:
-
- or %dx, %dx
- jnz 2f
- addw $1024, %cx /* add 1 MB */
- movzwl %cx, %edi
- shll $10, %edi /* convert to bytes */
- jmp 3f
-
-2:
- addw $16777216 >> 16, %dx /* add 16 MB */
- movzwl %dx, %edi
- shll $16, %edi /* convert to bytes */
-
-3:
- read_fw FW_CFG_INITRD_SIZE
- subl %eax, %edi
- andl $-4096, %edi /* EDI = start of initrd */
- movl %edi, %es:0x218 /* put it in the header */
-
-load_kernel:
- /* We need to load the kernel into memory we can't access in 16 bit
- mode, so let's get into 32 bit mode, write the kernel and jump
- back again. */
-
- /* Reserve space on the stack for our GDT descriptor. */
- mov %esp, %ebp
- sub $16, %esp
-
- /* Now create the GDT descriptor */
- movw $((3 * 8) - 1), -16(%bp)
- mov %cs, %eax
- movzwl %ax, %eax
- shl $4, %eax
- addl $gdt, %eax
- movl %eax, -14(%bp)
-
- /* And load the GDT */
- data32 lgdt -16(%bp)
- mov %ebp, %esp
-
- /* Get us to protected mode now */
- mov $1, %eax
- mov %eax, %cr0
-
- /* So we can set ES to a 32-bit segment */
- mov $0x10, %eax
- mov %eax, %es
-
- /* We're now running in 16-bit CS, but 32-bit ES! */
-
- /* Load kernel and initrd */
- read_fw_blob_addr32_edi(FW_CFG_INITRD)
- read_fw_blob_addr32(FW_CFG_KERNEL)
- read_fw_blob_addr32(FW_CFG_CMDLINE)
-
- /* And now jump into Linux! */
- mov $0, %eax
- mov %eax, %cr0
-
- /* ES = CS */
- mov %cs, %ax
- mov %ax, %es
-
- jmp boot_kernel
-
-/* Variables */
-
-.align 4, 0
-gdt:
- /* 0x00 */
-.byte 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
-
- /* 0x08: code segment (base=0, limit=0xfffff, type=32bit code exec/read, DPL=0, 4k) */
-.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x9a, 0xcf, 0x00
-
- /* 0x10: data segment (base=0, limit=0xfffff, type=32bit data read/write, DPL=0, 4k) */
-.byte 0xff, 0xff, 0x00, 0x00, 0x00, 0x92, 0xcf, 0x00
-
-BOOT_ROM_END
All PC machines now use the linuxboot_dma.bin binary, we can remove the non-DMA version (linuxboot.bin). Suggested-by: Thomas Huth <thuth@redhat.com> Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org> --- hw/i386/pc.c | 3 +- pc-bios/meson.build | 1 - pc-bios/optionrom/Makefile | 2 +- pc-bios/optionrom/linuxboot.S | 195 ---------------------------------- 4 files changed, 2 insertions(+), 199 deletions(-) delete mode 100644 pc-bios/optionrom/linuxboot.S