vbatts/grub
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2008-01-21 Robert Millan <rmh@aybabtu.com>

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* conf/i386-pc.rmk (GRUB_MEMORY_MACHINE_LINK_ADDR): New variable.
        (kernel_img_LDFLAGS): Use `GRUB_MEMORY_MACHINE_LINK_ADDR' as link
        address.
        (grub_mkimage_CFLAGS): Propagate `GRUB_MEMORY_MACHINE_LINK_ADDR' as
        a C macro.
        * include/grub/i386/pc/memory.h (GRUB_MEMORY_MACHINE_UPPER): New macro.
        Indicates start of upper memory.
        * util/i386/pc/grub-mkimage.c: Include `<grub/machine/memory.h>'.
        (generate_image): Abort when image size is big enough to corrupt
        upper memory.

        * include/grub/i386/pc/vga.h: Include `<grub/machine/memory.h>'.
        (GRUB_MEMORY_MACHINE_VGA_ADDR): Alias for `GRUB_MEMORY_MACHINE_UPPER'.
        * term/i386/pc/vga.c (VGA_MEM): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
        instead of hardcoding 0xA0000.
        * video/i386/pc/vbe.c: Include `<grub/machine/vga.h>'.
        (grub_vbe_set_video_mode): Use `GRUB_MEMORY_MACHINE_VGA_ADDR'
        instead of hardcoding 0xA0000.
This commit is contained in:
robertmh 2008-01-21 15:48:27 +00:00
parent f970b55e43
commit 261bd4bc56
8 changed files with 48 additions and 8 deletions
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5
include/grub/i386/pc/memory.h
View file

@ -1,7 +1,7 @@
/* memory.h - describe the memory map */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2007 Free Software Foundation, Inc.
* Copyright (C) 2002,2007,2008 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
@ -36,6 +36,9 @@
/* The size of the protect mode stack. */
#define GRUB_MEMORY_MACHINE_PROT_STACK_SIZE 0x8000
/* The upper memory area (starting at 640 kiB). */
#define GRUB_MEMORY_MACHINE_UPPER 0xa0000
/* The protected mode stack. */
#define GRUB_MEMORY_MACHINE_PROT_STACK \
(GRUB_MEMORY_MACHINE_SCRATCH_ADDR + GRUB_MEMORY_MACHINE_SCRATCH_SIZE \

6
include/grub/i386/pc/vga.h
View file

@ -1,6 +1,6 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2003,2007 Free Software Foundation, Inc.
* 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
@ -20,6 +20,10 @@
#define GRUB_VGA_MACHINE_HEADER 1
#include <grub/symbol.h>
#include <grub/machine/memory.h>
/* The VGA (at the beginning of upper memory). */
#define GRUB_MEMORY_MACHINE_VGA_ADDR GRUB_MEMORY_MACHINE_UPPER
/* Set the video mode to MODE and return the previous mode. */
unsigned char EXPORT_FUNC(grub_vga_set_mode) (unsigned char mode);