103 lines
2.7 KiB
C
103 lines
2.7 KiB
C
/* multiboot2.c - boot a multiboot 2 OS image. */
|
|
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 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 <multiboot2.h>
|
|
#include <grub/multiboot2.h>
|
|
#include <grub/elf.h>
|
|
#include <grub/err.h>
|
|
#include <grub/machine/loader.h>
|
|
#include <grub/mm.h>
|
|
#include <grub/multiboot.h>
|
|
#include <grub/cpu/multiboot.h>
|
|
|
|
grub_err_t
|
|
grub_mb2_arch_elf32_hook (Elf32_Phdr *phdr, UNUSED grub_addr_t *addr)
|
|
{
|
|
Elf32_Addr paddr = phdr->p_paddr;
|
|
|
|
if ((paddr < grub_os_area_addr)
|
|
|| (paddr + phdr->p_memsz > grub_os_area_addr + grub_os_area_size))
|
|
return grub_error(GRUB_ERR_OUT_OF_RANGE,"Address 0x%x is out of range",
|
|
paddr);
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_mb2_arch_elf64_hook (Elf64_Phdr *phdr, UNUSED grub_addr_t *addr)
|
|
{
|
|
Elf64_Addr paddr = phdr->p_paddr;
|
|
|
|
if ((paddr < grub_os_area_addr)
|
|
|| (paddr + phdr->p_memsz > grub_os_area_addr + grub_os_area_size))
|
|
return grub_error (GRUB_ERR_OUT_OF_RANGE, "Address 0x%x is out of range",
|
|
paddr);
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_mb2_arch_module_alloc (grub_size_t size, grub_addr_t *addr)
|
|
{
|
|
grub_addr_t modaddr;
|
|
|
|
modaddr = (grub_addr_t) grub_memalign (MULTIBOOT2_MOD_ALIGN, size);
|
|
if (! modaddr)
|
|
return grub_errno;
|
|
|
|
*addr = modaddr;
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_mb2_arch_module_free (grub_addr_t addr, UNUSED grub_size_t size)
|
|
{
|
|
grub_free((void *) addr);
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
void
|
|
grub_mb2_arch_boot (grub_addr_t entry, void *tags)
|
|
{
|
|
grub_multiboot2_real_boot (entry, tags);
|
|
}
|
|
|
|
void
|
|
grub_mb2_arch_unload (struct multiboot_tag_header *tags)
|
|
{
|
|
struct multiboot_tag_header *tag;
|
|
|
|
/* Free all module memory in the tag list. */
|
|
for_each_tag (tag, tags)
|
|
{
|
|
if (tag->key == MULTIBOOT2_TAG_MODULE)
|
|
{
|
|
struct multiboot_tag_module *module =
|
|
(struct multiboot_tag_module *) tag;
|
|
grub_free((void *) module->addr);
|
|
}
|
|
}
|
|
}
|
|
|
|
grub_err_t
|
|
grub_mb2_tags_arch_create (void)
|
|
{
|
|
/* XXX Create boot device et al. */
|
|
return GRUB_ERR_NONE;
|
|
}
|