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Coreboot video support.

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* grub-core/Makefile.core.def (vga): Extend to coreboot and multiboot.
	(vbe): Likewise.
	* grub-core/kern/i386/coreboot/startup.S: Include int.S.
	* grub-core/kern/i386/pc/startup.S (grub_bios_interrupt): Moved from
	here ...
	* grub-core/kern/i386/int.S: ... here.
	* grub-core/video/i386/pc/vbe.c: Updated includes.
	* grub-core/video/i386/pc/vga.c: Likewise.
	* include/grub/i386/coreboot/memory.h
	(GRUB_MEMORY_MACHINE_SCRATCH_ADDR): New definition.
	(GRUB_MEMORY_MACHINE_SCRATCH_SEG): Likewise.
	(GRUB_MEMORY_MACHINE_SCRATCH_SIZE): Likewise.
	* include/grub/i386/pc/int.h (GRUB_CPU_INT_FLAGS_DEFAULT) [!PCBIOS]:
	Disable interrupts.
	* include/grub/i386/pc/vga.h: Removed. All users updated.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-06-27 08:54:55 +02:00
parent 41bec7fec9
commit 9fc9ce3795
11 changed files with 184 additions and 136 deletions
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100
grub-core/kern/i386/pc/startup.S
View file

@ -910,102 +910,4 @@ FUNCTION(grub_pxe_call)
popl %ebp
ret
FUNCTION(grub_bios_interrupt)
pushl %ebp
pushl %ecx
pushl %eax
pushl %ebx
pushl %esi
pushl %edi
pushl %edx
movb %al, intno
movl (%edx), %eax
movl %eax, LOCAL(bios_register_eax)
movw 4(%edx), %ax
movw %ax, LOCAL(bios_register_es)
movw 6(%edx), %ax
movw %ax, LOCAL(bios_register_ds)
movw 8(%edx), %ax
movw %ax, LOCAL(bios_register_flags)
movl 12(%edx), %ebx
movl 16(%edx), %ecx
movl 20(%edx), %edi
movl 24(%edx), %esi
movl 28(%edx), %edx
call prot_to_real
.code16
mov %ds, %ax
push %ax
/* movw imm16, %ax*/
.byte 0xb8
LOCAL(bios_register_es):
.short 0
movw %ax, %es
/* movw imm16, %ax*/
.byte 0xb8
LOCAL(bios_register_ds):
.short 0
movw %ax, %ds
/* movw imm16, %ax*/
.byte 0xb8
LOCAL(bios_register_flags):
.short 0
push %ax
popf
/* movl imm32, %eax*/
.byte 0x66, 0xb8
LOCAL(bios_register_eax):
.long 0
/* int imm8. */
.byte 0xcd
intno:
.byte 0
movl %eax, %cs:LOCAL(bios_register_eax)
movw %ds, %ax
movw %ax, %cs:LOCAL(bios_register_ds)
pop %ax
mov %ax, %ds
pushf
pop %ax
movw %ax, LOCAL(bios_register_flags)
mov %es, %ax
movw %ax, LOCAL(bios_register_es)
DATA32 call real_to_prot
.code32
popl %eax
movl %ebx, 12(%eax)
movl %ecx, 16(%eax)
movl %edi, 20(%eax)
movl %esi, 24(%eax)
movl %edx, 28(%eax)
movl %eax, %edx
movl LOCAL(bios_register_eax), %eax
movl %eax, (%edx)
movw LOCAL(bios_register_es), %ax
movw %ax, 4(%edx)
movw LOCAL(bios_register_ds), %ax
movw %ax, 6(%edx)
movw LOCAL(bios_register_flags), %ax
movw %ax, 8(%edx)
popl %edi
popl %esi
popl %ebx
popl %eax
popl %ecx
popl %ebp
ret
#include "../int.S"