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2008-08-17 Robert Millan <rmh@aybabtu.com>

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* conf/i386-pc.rmk (kernel_img_SOURCES): Add `kern/i386/pc/mmap.c'.

        * include/grub/i386/pc/init.h (GRUB_MACHINE_MEMORY_AVAILABLE)
        (GRUB_MACHINE_MEMORY_RESERVED): New macros.
        (grub_machine_mmap_iterate): New function declaration.
        * include/grub/multiboot.h (struct grub_multiboot_mmap_entry): New
        structure.
        (GRUB_MMAP_MEMORY_AVAILABLE, GRUB_MMAP_MEMORY_RESERVED): New
        macros.

        * kern/i386/pc/init.c (grub_machine_init): Replace hardcoded region
        type check value with `GRUB_MACHINE_MEMORY_AVAILABLE'.
        Move e820 parsing from here ...
        * kern/i386/pc/mmap.c: New file.
        (grub_machine_mmap_iterate): ... to here.

        * include/grub/i386/coreboot/memory.h: Remove `<grub/err.h>'.
        (GRUB_LINUXBIOS_MEMORY_AVAILABLE): Rename (for consistency) to ...
        (GRUB_MACHINE_MEMORY_AVAILABLE): ... this.  Update all users.
        (grub_available_iterate): Redeclare to return `void', and redeclare
        its hook to use grub_uint64_t as addr and size parameters, and rename
        to ...
        (grub_machine_mmap_iterate): ... this.  Update all users.

        * kern/i386/coreboot/mmap.c (grub_mmap_iterate): Simplify parser loop
        to make it more readable.  Rename to ...
        (grub_machine_mmap_iterate): ... this.

        * loader/i386/pc/multiboot.c (mmap_addr, mmap_length): New variables.
        (grub_get_multiboot_mmap_len, grub_fill_multiboot_mmap): New functions.
        (grub_multiboot): Allocate an extra region after the payload, and fill
        it with a Multiboot memory map.  Adjust a.out loader to calculate size
        with the extra space.
        (grub_multiboot_load_elf32): Adjust elf32 loader to calculate size
        with the extra space.
This commit is contained in:
robertmh 2008-08-17 16:32:18 +00:00
parent 9807deb97d
commit deceb3ecd3
10 changed files with 289 additions and 70 deletions
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60
kern/i386/pc/mmap.c Normal file
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/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2003,2004,2005,2006,2007,2008 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 <http://www.gnu.org/licenses/>.
*/
#include <grub/machine/init.h>
#include <grub/machine/memory.h>
#include <grub/types.h>
void
grub_machine_mmap_iterate (int NESTED_FUNC_ATTR (*hook) (grub_uint64_t, grub_uint64_t, grub_uint32_t))
{
grub_uint32_t cont;
struct grub_machine_mmap_entry *entry
= (struct grub_machine_mmap_entry *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
/* Check if grub_get_mmap_entry works. */
cont = grub_get_mmap_entry (entry, 0);
if (entry->size)
do
{
if (hook (entry->addr, entry->len,
/* Multiboot mmaps have been defined to match with the E820 definition.
Therefore, we can just pass type through. */
entry->type))
break;
if (! cont)
break;
cont = grub_get_mmap_entry (entry, cont);
}
while (entry->size);
else
{
grub_uint32_t eisa_mmap = grub_get_eisa_mmap ();
if (eisa_mmap)
{
if (hook (0x100000, (eisa_mmap & 0xFFFF) << 10, GRUB_MACHINE_MEMORY_AVAILABLE) == 0)
hook (0x1000000, eisa_mmap & ~0xFFFF, GRUB_MACHINE_MEMORY_AVAILABLE);
}
else
hook (0x100000, grub_get_memsize (1) << 10, GRUB_MACHINE_MEMORY_AVAILABLE);
}
}