diff --git a/ChangeLog b/ChangeLog index df640a0ef..311e65b05 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,23 @@ +2011-06-27 Vladimir Serbinenko + + Coreboot video support. + + * 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. + 2011-06-27 Vladimir Serbinenko * grub-core/disk/ahci.c (grub_ahci_readwrite_real): Use proper diff --git a/grub-core/Makefile.am b/grub-core/Makefile.am index a8862b309..c3ecba9cf 100644 --- a/grub-core/Makefile.am +++ b/grub-core/Makefile.am @@ -100,10 +100,12 @@ endif if COND_i386_coreboot KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/pit.h +KERNEL_HEADER_FILES += $(top_builddir)/include/grub/i386/pc/int.h endif if COND_i386_multiboot KERNEL_HEADER_FILES += $(top_srcdir)/include/grub/i386/pit.h +KERNEL_HEADER_FILES += $(top_builddir)/include/grub/i386/pc/int.h endif if COND_i386_qemu diff --git a/grub-core/Makefile.core.def b/grub-core/Makefile.core.def index 927718359..7a0536b97 100644 --- a/grub-core/Makefile.core.def +++ b/grub-core/Makefile.core.def @@ -1454,8 +1454,10 @@ module = { module = { name = vga; - i386_pc = video/i386/pc/vga.c; + common = video/i386/pc/vga.c; enable = i386_pc; + enable = i386_coreboot; + enable = i386_multiboot; }; module = { @@ -1533,8 +1535,10 @@ module = { module = { name = vbe; - i386_pc = video/i386/pc/vbe.c; + common = video/i386/pc/vbe.c; enable = i386_pc; + enable = i386_coreboot; + enable = i386_multiboot; }; module = { diff --git a/grub-core/kern/i386/coreboot/startup.S b/grub-core/kern/i386/coreboot/startup.S index cac023ddf..07c5437c0 100644 --- a/grub-core/kern/i386/coreboot/startup.S +++ b/grub-core/kern/i386/coreboot/startup.S @@ -87,3 +87,4 @@ codestart: */ #include "../realmode.S" +#include "../int.S" diff --git a/grub-core/kern/i386/int.S b/grub-core/kern/i386/int.S new file mode 100644 index 000000000..58ccfdaab --- /dev/null +++ b/grub-core/kern/i386/int.S @@ -0,0 +1,140 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 2010,2011 Free Software Foundation, Inc. + * + * GRUB 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see . + */ + +FUNCTION(grub_bios_interrupt) + pushf + cli +#ifndef GRUB_MACHINE_PCBIOS + sidt protidt +#endif + popf + 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 + pushf + cli +#ifndef GRUB_MACHINE_PCBIOS + lidt realidt +#endif + + 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) + + popf + 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 +#ifndef GRUB_MACHINE_PCBIOS + lidt protidt +#endif + ret +#ifndef GRUB_MACHINE_PCBIOS +realidt: + .word 0x100 + .long 0 +protidt: + .word 0 + .long 0 +#endif diff --git a/grub-core/kern/i386/pc/startup.S b/grub-core/kern/i386/pc/startup.S index e78a0aa9a..0fe114add 100644 --- a/grub-core/kern/i386/pc/startup.S +++ b/grub-core/kern/i386/pc/startup.S @@ -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" diff --git a/grub-core/video/i386/pc/vbe.c b/grub-core/video/i386/pc/vbe.c index a109bcf43..c11b9a627 100644 --- a/grub-core/video/i386/pc/vbe.c +++ b/grub-core/video/i386/pc/vbe.c @@ -20,15 +20,14 @@ #include #include -#include -#include +#include #include #include #include #include #include #include -#include +#include GRUB_MOD_LICENSE ("GPLv3+"); @@ -377,7 +376,7 @@ grub_vbe_set_video_mode (grub_uint32_t vbe_mode, if (vbe_mode < 0x100) { /* If this is not a VESA mode, guess address. */ - framebuffer.ptr = (grub_uint8_t *) GRUB_MEMORY_MACHINE_VGA_ADDR; + framebuffer.ptr = (grub_uint8_t *) 0xa0000; } else { diff --git a/grub-core/video/i386/pc/vga.c b/grub-core/video/i386/pc/vga.c index fe387a26b..08c9ca37d 100644 --- a/grub-core/video/i386/pc/vga.c +++ b/grub-core/video/i386/pc/vga.c @@ -18,8 +18,7 @@ #define grub_video_render_target grub_video_fbrender_target -#include -#include +#include #include #include #include @@ -34,7 +33,7 @@ GRUB_MOD_LICENSE ("GPLv3+"); #define VGA_WIDTH 640 #define VGA_HEIGHT 350 -#define VGA_MEM ((grub_uint8_t *) GRUB_MEMORY_MACHINE_VGA_ADDR) +#define VGA_MEM ((grub_uint8_t *) 0xa0000) #define PAGE_OFFSET(x) ((x) * (VGA_WIDTH * VGA_HEIGHT / 8)) static unsigned char text_mode; diff --git a/include/grub/i386/coreboot/memory.h b/include/grub/i386/coreboot/memory.h index 0642280b9..2859b1d7c 100644 --- a/include/grub/i386/coreboot/memory.h +++ b/include/grub/i386/coreboot/memory.h @@ -28,6 +28,10 @@ #include #endif +#define GRUB_MEMORY_MACHINE_SCRATCH_ADDR 0x68000 +#define GRUB_MEMORY_MACHINE_SCRATCH_SEG (GRUB_MEMORY_MACHINE_SCRATCH_ADDR >> 4) +#define GRUB_MEMORY_MACHINE_SCRATCH_SIZE 0x10000 + #define GRUB_MEMORY_MACHINE_LOWER_USABLE 0x9fc00 /* 640 kiB - 1 kiB */ #define GRUB_MEMORY_MACHINE_UPPER_START 0x100000 /* 1 MiB */ diff --git a/include/grub/i386/pc/int.h b/include/grub/i386/pc/int.h index de23775d0..337752587 100644 --- a/include/grub/i386/pc/int.h +++ b/include/grub/i386/pc/int.h @@ -45,7 +45,12 @@ struct grub_bios_int_registers #define GRUB_CPU_INT_FLAGS_INTERRUPT 0x200 #define GRUB_CPU_INT_FLAGS_DIRECTION 0x400 #define GRUB_CPU_INT_FLAGS_OVERFLOW 0x800 +#ifdef GRUB_MACHINE_PCBIOS #define GRUB_CPU_INT_FLAGS_DEFAULT GRUB_CPU_INT_FLAGS_INTERRUPT +#else +#define GRUB_CPU_INT_FLAGS_DEFAULT 0 +#endif + void EXPORT_FUNC (grub_bios_interrupt) (grub_uint8_t intno, struct grub_bios_int_registers *regs); diff --git a/include/grub/i386/pc/vga.h b/include/grub/i386/pc/vga.h deleted file mode 100644 index ecc169022..000000000 --- a/include/grub/i386/pc/vga.h +++ /dev/null @@ -1,28 +0,0 @@ -/* - * GRUB -- GRand Unified Bootloader - * Copyright (C) 2003,2007,2008 Free Software Foundation, Inc. - * - * GRUB 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 3 of the License, or - * (at your option) any later version. - * - * GRUB 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 GRUB. If not, see . - */ - -#ifndef GRUB_VGA_MACHINE_HEADER -#define GRUB_VGA_MACHINE_HEADER 1 - -#include -#include - -/* The VGA (at the beginning of upper memory). */ -#define GRUB_MEMORY_MACHINE_VGA_ADDR GRUB_MEMORY_MACHINE_UPPER - -#endif /* ! GRUB_VGA_MACHINE_HEADER */