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merge mainline into hints

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2010-09-13 02:22:10 +02:00
commit a848c54e34
933 changed files with 126865 additions and 40868 deletions
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174
grub-core/loader/i386/pc/chainloader.c Normal file
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/* chainloader.c - boot another boot loader */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2004,2007,2009,2010 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/loader.h>
#include <grub/machine/loader.h>
#include <grub/machine/chainloader.h>
#include <grub/file.h>
#include <grub/err.h>
#include <grub/device.h>
#include <grub/disk.h>
#include <grub/misc.h>
#include <grub/types.h>
#include <grub/machine/init.h>
#include <grub/partition.h>
#include <grub/machine/memory.h>
#include <grub/dl.h>
#include <grub/command.h>
#include <grub/msdos_partition.h>
#include <grub/machine/biosnum.h>
#include <grub/i18n.h>
#include <grub/video.h>
#include <grub/mm.h>
static grub_dl_t my_mod;
static int boot_drive;
static void *boot_part_addr;
static grub_err_t
grub_chainloader_boot (void)
{
grub_video_set_mode ("text", 0, 0);
grub_chainloader_real_boot (boot_drive, boot_part_addr);
/* Never reach here. */
return GRUB_ERR_NONE;
}
static grub_err_t
grub_chainloader_unload (void)
{
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
}
static void
grub_chainloader_cmd (const char *filename, grub_chainloader_flags_t flags)
{
grub_file_t file = 0;
grub_uint16_t signature;
grub_device_t dev;
int drive = -1;
void *part_addr = 0;
grub_dl_ref (my_mod);
grub_file_filter_disable_compression ();
file = grub_file_open (filename);
if (! file)
goto fail;
/* Read the first block. */
if (grub_file_read (file, (void *) 0x7C00, GRUB_DISK_SECTOR_SIZE)
!= GRUB_DISK_SECTOR_SIZE)
{
if (grub_errno == GRUB_ERR_NONE)
grub_error (GRUB_ERR_BAD_OS, "too small");
goto fail;
}
/* Check the signature. */
signature = *((grub_uint16_t *) (0x7C00 + GRUB_DISK_SECTOR_SIZE - 2));
if (signature != grub_le_to_cpu16 (0xaa55)
&& ! (flags & GRUB_CHAINLOADER_FORCE))
{
grub_error (GRUB_ERR_BAD_OS, "invalid signature");
goto fail;
}
grub_file_close (file);
/* Obtain the partition table from the root device. */
drive = grub_get_root_biosnumber ();
dev = grub_device_open (0);
if (dev && dev->disk && dev->disk->partition)
{
grub_disk_t disk = dev->disk;
if (disk)
{
grub_partition_t p = disk->partition;
if (p && grub_strcmp (p->partmap->name, "msdos") == 0)
{
disk->partition = p->parent;
grub_disk_read (disk, p->offset, 446, 64,
(void *) GRUB_MEMORY_MACHINE_PART_TABLE_ADDR);
part_addr = (void *) (GRUB_MEMORY_MACHINE_PART_TABLE_ADDR
+ (p->index << 4));
disk->partition = p;
}
}
}
if (dev)
grub_device_close (dev);
/* Ignore errors. Perhaps it's not fatal. */
grub_errno = GRUB_ERR_NONE;
boot_drive = drive;
boot_part_addr = part_addr;
grub_loader_set (grub_chainloader_boot, grub_chainloader_unload, 1);
return;
fail:
if (file)
grub_file_close (file);
grub_dl_unref (my_mod);
}
static grub_err_t
grub_cmd_chainloader (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_chainloader_flags_t flags = 0;
if (argc > 0 && grub_strcmp (argv[0], "--force") == 0)
{
flags |= GRUB_CHAINLOADER_FORCE;
argc--;
argv++;
}
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
else
grub_chainloader_cmd (argv[0], flags);
return grub_errno;
}
static grub_command_t cmd;
GRUB_MOD_INIT(chainloader)
{
cmd = grub_register_command ("chainloader", grub_cmd_chainloader,
0, N_("Load another boot loader."));
my_mod = mod;
}
GRUB_MOD_FINI(chainloader)
{
grub_unregister_command (cmd);
}

456
grub-core/loader/i386/pc/linux.c Normal file
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/* linux.c - boot Linux zImage or bzImage */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2007,2008,2009,2010 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/loader.h>
#include <grub/machine/loader.h>
#include <grub/file.h>
#include <grub/err.h>
#include <grub/device.h>
#include <grub/disk.h>
#include <grub/misc.h>
#include <grub/types.h>
#include <grub/machine/init.h>
#include <grub/machine/memory.h>
#include <grub/dl.h>
#include <grub/cpu/linux.h>
#include <grub/command.h>
#include <grub/i18n.h>
#include <grub/mm.h>
#include <grub/cpu/relocator.h>
#include <grub/video.h>
#include <grub/i386/floppy.h>
#define GRUB_LINUX_CL_OFFSET 0x9000
#define GRUB_LINUX_CL_END_OFFSET 0x90FF
static grub_dl_t my_mod;
static grub_size_t linux_mem_size;
static int loaded;
static struct grub_relocator *relocator = NULL;
static grub_addr_t grub_linux_real_target;
static char *grub_linux_real_chunk;
static grub_size_t grub_linux16_prot_size;
static grub_err_t
grub_linux16_boot (void)
{
grub_uint16_t segment;
struct grub_relocator16_state state;
segment = grub_linux_real_target >> 4;
state.gs = state.fs = state.es = state.ds = state.ss = segment;
state.sp = GRUB_LINUX_SETUP_STACK;
state.cs = segment + 0x20;
state.ip = 0;
grub_video_set_mode ("text", 0, 0);
grub_stop_floppy ();
return grub_relocator16_boot (relocator, state);
}
static grub_err_t
grub_linux_unload (void)
{
grub_dl_unref (my_mod);
loaded = 0;
grub_relocator_unload (relocator);
relocator = NULL;
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
struct linux_kernel_header lh;
grub_uint8_t setup_sects;
grub_size_t real_size;
grub_ssize_t len;
int i;
char *dest;
char *grub_linux_prot_chunk;
int grub_linux_is_bzimage;
grub_addr_t grub_linux_prot_target;
grub_err_t err;
grub_dl_ref (my_mod);
if (argc == 0)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "no kernel specified");
goto fail;
}
file = grub_file_open (argv[0]);
if (! file)
goto fail;
if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh))
{
grub_error (GRUB_ERR_READ_ERROR, "cannot read the Linux header");
goto fail;
}
if (lh.boot_flag != grub_cpu_to_le16 (0xaa55))
{
grub_error (GRUB_ERR_BAD_OS, "invalid magic number");
goto fail;
}
if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS)
{
grub_error (GRUB_ERR_BAD_OS, "too many setup sectors");
goto fail;
}
grub_linux_is_bzimage = 0;
setup_sects = lh.setup_sects;
linux_mem_size = 0;
if (lh.header == grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE)
&& grub_le_to_cpu16 (lh.version) >= 0x0200)
{
grub_linux_is_bzimage = (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL);
lh.type_of_loader = GRUB_LINUX_BOOT_LOADER_TYPE;
/* Put the real mode part at as a high location as possible. */
grub_linux_real_target = grub_mmap_get_lower ()
- GRUB_LINUX_SETUP_MOVE_SIZE;
/* But it must not exceed the traditional area. */
if (grub_linux_real_target > GRUB_LINUX_OLD_REAL_MODE_ADDR)
grub_linux_real_target = GRUB_LINUX_OLD_REAL_MODE_ADDR;
if (grub_le_to_cpu16 (lh.version) >= 0x0201)
{
lh.heap_end_ptr = grub_cpu_to_le16 (GRUB_LINUX_HEAP_END_OFFSET);
lh.loadflags |= GRUB_LINUX_FLAG_CAN_USE_HEAP;
}
if (grub_le_to_cpu16 (lh.version) >= 0x0202)
lh.cmd_line_ptr = grub_linux_real_target + GRUB_LINUX_CL_OFFSET;
else
{
lh.cl_magic = grub_cpu_to_le16 (GRUB_LINUX_CL_MAGIC);
lh.cl_offset = grub_cpu_to_le16 (GRUB_LINUX_CL_OFFSET);
lh.setup_move_size = grub_cpu_to_le16 (GRUB_LINUX_SETUP_MOVE_SIZE);
}
}
else
{
/* Your kernel is quite old... */
lh.cl_magic = grub_cpu_to_le16 (GRUB_LINUX_CL_MAGIC);
lh.cl_offset = grub_cpu_to_le16 (GRUB_LINUX_CL_OFFSET);
setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS;
grub_linux_real_target = GRUB_LINUX_OLD_REAL_MODE_ADDR;
}
/* If SETUP_SECTS is not set, set it to the default (4). */
if (! setup_sects)
setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS;
real_size = setup_sects << GRUB_DISK_SECTOR_BITS;
grub_linux16_prot_size = grub_file_size (file)
- real_size - GRUB_DISK_SECTOR_SIZE;
if (! grub_linux_is_bzimage
&& GRUB_LINUX_ZIMAGE_ADDR + grub_linux16_prot_size
> grub_linux_real_target)
{
grub_error (GRUB_ERR_BAD_OS, "too big zImage (0x%x > 0x%x), use bzImage instead",
(char *) GRUB_LINUX_ZIMAGE_ADDR + grub_linux16_prot_size,
(grub_size_t) grub_linux_real_target);
goto fail;
}
if (grub_linux_real_target + GRUB_LINUX_SETUP_MOVE_SIZE
> grub_mmap_get_lower ())
{
grub_error (GRUB_ERR_OUT_OF_RANGE,
"too small lower memory (0x%x > 0x%x)",
grub_linux_real_target + GRUB_LINUX_SETUP_MOVE_SIZE,
(int) grub_mmap_get_lower ());
goto fail;
}
grub_printf (" [Linux-%s, setup=0x%x, size=0x%x]\n",
grub_linux_is_bzimage ? "bzImage" : "zImage", real_size,
grub_linux16_prot_size);
relocator = grub_relocator_new ();
if (!relocator)
goto fail;
for (i = 1; i < argc; i++)
if (grub_memcmp (argv[i], "vga=", 4) == 0)
{
/* Video mode selection support. */
grub_uint16_t vid_mode;
char *val = argv[i] + 4;
if (grub_strcmp (val, "normal") == 0)
vid_mode = GRUB_LINUX_VID_MODE_NORMAL;
else if (grub_strcmp (val, "ext") == 0)
vid_mode = GRUB_LINUX_VID_MODE_EXTENDED;
else if (grub_strcmp (val, "ask") == 0)
vid_mode = GRUB_LINUX_VID_MODE_ASK;
else
vid_mode = (grub_uint16_t) grub_strtoul (val, 0, 0);
if (grub_errno)
goto fail;
lh.vid_mode = grub_cpu_to_le16 (vid_mode);
}
else if (grub_memcmp (argv[i], "mem=", 4) == 0)
{
char *val = argv[i] + 4;
linux_mem_size = grub_strtoul (val, &val, 0);
if (grub_errno)
{
grub_errno = GRUB_ERR_NONE;
linux_mem_size = 0;
}
else
{
int shift = 0;
switch (grub_tolower (val[0]))
{
case 'g':
shift += 10;
case 'm':
shift += 10;
case 'k':
shift += 10;
default:
break;
}
/* Check an overflow. */
if (linux_mem_size > (~0UL >> shift))
linux_mem_size = 0;
else
linux_mem_size <<= shift;
}
}
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
grub_linux_real_target,
GRUB_LINUX_SETUP_MOVE_SIZE);
if (err)
return err;
grub_linux_real_chunk = get_virtual_current_address (ch);
}
/* Put the real mode code at the temporary address. */
grub_memmove (grub_linux_real_chunk, &lh, sizeof (lh));
len = real_size + GRUB_DISK_SECTOR_SIZE - sizeof (lh);
if (grub_file_read (file, grub_linux_real_chunk + sizeof (lh), len) != len)
{
grub_error (GRUB_ERR_FILE_READ_ERROR, "couldn't read file");
goto fail;
}
if (lh.header != grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE)
|| grub_le_to_cpu16 (lh.version) < 0x0200)
/* Clear the heap space. */
grub_memset (grub_linux_real_chunk
+ ((setup_sects + 1) << GRUB_DISK_SECTOR_BITS),
0,
((GRUB_LINUX_MAX_SETUP_SECTS - setup_sects - 1)
<< GRUB_DISK_SECTOR_BITS));
/* Specify the boot file. */
dest = grub_stpcpy (grub_linux_real_chunk + GRUB_LINUX_CL_OFFSET,
"BOOT_IMAGE=");
dest = grub_stpcpy (dest, argv[0]);
/* Copy kernel parameters. */
for (i = 1;
i < argc
&& dest + grub_strlen (argv[i]) + 1 < (grub_linux_real_chunk
+ GRUB_LINUX_CL_END_OFFSET);
i++)
{
*dest++ = ' ';
dest = grub_stpcpy (dest, argv[i]);
}
if (grub_linux_is_bzimage)
grub_linux_prot_target = GRUB_LINUX_BZIMAGE_ADDR;
else
grub_linux_prot_target = GRUB_LINUX_ZIMAGE_ADDR;
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (relocator, &ch,
grub_linux_prot_target,
grub_linux16_prot_size);
if (err)
return err;
grub_linux_prot_chunk = get_virtual_current_address (ch);
}
len = grub_linux16_prot_size;
if (grub_file_read (file, grub_linux_prot_chunk, grub_linux16_prot_size)
!= (grub_ssize_t) grub_linux16_prot_size)
grub_error (GRUB_ERR_FILE_READ_ERROR, "couldn't read file");
if (grub_errno == GRUB_ERR_NONE)
{
grub_loader_set (grub_linux16_boot, grub_linux_unload, 0);
loaded = 1;
}
fail:
if (file)
grub_file_close (file);
if (grub_errno != GRUB_ERR_NONE)
{
grub_dl_unref (my_mod);
loaded = 0;
grub_relocator_unload (relocator);
}
return grub_errno;
}
static grub_err_t
grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_ssize_t size;
grub_addr_t addr_max, addr_min;
struct linux_kernel_header *lh;
grub_uint8_t *initrd_chunk;
grub_addr_t initrd_addr;
grub_err_t err;
if (argc == 0)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified");
goto fail;
}
if (!loaded)
{
grub_error (GRUB_ERR_BAD_ARGUMENT, "you need to load the kernel first");
goto fail;
}
lh = (struct linux_kernel_header *) grub_linux_real_chunk;
if (!(lh->header == grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE)
&& grub_le_to_cpu16 (lh->version) >= 0x0200))
{
grub_error (GRUB_ERR_BAD_OS, "the kernel is too old for initrd");
goto fail;
}
/* Get the highest address available for the initrd. */
if (grub_le_to_cpu16 (lh->version) >= 0x0203)
{
addr_max = grub_cpu_to_le32 (lh->initrd_addr_max);
/* XXX in reality, Linux specifies a bogus value, so
it is necessary to make sure that ADDR_MAX does not exceed
0x3fffffff. */
if (addr_max > GRUB_LINUX_INITRD_MAX_ADDRESS)
addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS;
}
else
addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS;
if (linux_mem_size != 0 && linux_mem_size < addr_max)
addr_max = linux_mem_size;
/* Linux 2.3.xx has a bug in the memory range check, so avoid
the last page.
Linux 2.2.xx has a bug in the memory range check, which is
worse than that of Linux 2.3.xx, so avoid the last 64kb. */
addr_max -= 0x10000;
addr_min = GRUB_LINUX_BZIMAGE_ADDR + grub_linux16_prot_size;
grub_file_filter_disable_compression ();
file = grub_file_open (argv[0]);
if (!file)
goto fail;
size = grub_file_size (file);
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_align (relocator, &ch,
addr_min, addr_max - size,
size, 0x1000,
GRUB_RELOCATOR_PREFERENCE_HIGH);
if (err)
return err;
initrd_chunk = get_virtual_current_address (ch);
initrd_addr = get_physical_target_address (ch);
}
if (grub_file_read (file, initrd_chunk, size) != size)
{
grub_error (GRUB_ERR_FILE_READ_ERROR, "couldn't read file");
goto fail;
}
lh->ramdisk_image = initrd_addr;
lh->ramdisk_size = size;
fail:
if (file)
grub_file_close (file);
return grub_errno;
}
static grub_command_t cmd_linux, cmd_initrd;
GRUB_MOD_INIT(linux16)
{
cmd_linux =
grub_register_command ("linux16", grub_cmd_linux,
0, N_("Load Linux."));
cmd_initrd =
grub_register_command ("initrd16", grub_cmd_initrd,
0, N_("Load initrd."));
my_mod = mod;
}
GRUB_MOD_FINI(linux16)
{
grub_unregister_command (cmd_linux);
grub_unregister_command (cmd_initrd);
}

122
grub-core/loader/i386/pc/multiboot2.c Normal file
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/* 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 <grub/multiboot2.h>
#include <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,
grub_addr_t *addr __attribute__ ((unused)),
int *do_load)
{
Elf32_Addr paddr = phdr->p_paddr;
if (phdr->p_type != PT_LOAD)
{
*do_load = 0;
return 0;
}
*do_load = 1;
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,
grub_addr_t *addr __attribute__ ((unused)),
int *do_load)
{
Elf64_Addr paddr = phdr->p_paddr;
if (phdr->p_type != PT_LOAD)
{
*do_load = 0;
return 0;
}
*do_load = 1;
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,
grub_size_t size __attribute__ ((unused)))
{
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 multiboot2_tag_header *tags)
{
struct multiboot2_tag_header *tag;
/* Free all module memory in the tag list. */
for_each_tag (tag, tags)
{
if (tag->key == MULTIBOOT2_TAG_MODULE)
{
struct multiboot2_tag_module *module =
(struct multiboot2_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;
}

157
grub-core/loader/i386/pc/ntldr.c Normal file
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/* chainloader.c - boot another boot loader */
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2002,2004,2007,2009,2010 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/loader.h>
#include <grub/file.h>
#include <grub/err.h>
#include <grub/device.h>
#include <grub/disk.h>
#include <grub/misc.h>
#include <grub/types.h>
#include <grub/partition.h>
#include <grub/dl.h>
#include <grub/command.h>
#include <grub/machine/biosnum.h>
#include <grub/i18n.h>
#include <grub/video.h>
#include <grub/mm.h>
#include <grub/cpu/relocator.h>
static grub_dl_t my_mod;
static struct grub_relocator *rel;
static grub_uint32_t edx = 0xffffffff;
#define GRUB_NTLDR_SEGMENT 0x2000
static grub_err_t
grub_ntldr_boot (void)
{
struct grub_relocator16_state state = {
.cs = GRUB_NTLDR_SEGMENT,
.ip = 0,
.ds = 0,
.es = 0,
.fs = 0,
.gs = 0,
.ss = 0,
.sp = 0x7c00,
.edx = edx
};
grub_video_set_mode ("text", 0, 0);
return grub_relocator16_boot (rel, state);
}
static grub_err_t
grub_ntldr_unload (void)
{
grub_relocator_unload (rel);
rel = NULL;
grub_dl_unref (my_mod);
return GRUB_ERR_NONE;
}
static grub_err_t
grub_cmd_ntldr (grub_command_t cmd __attribute__ ((unused)),
int argc, char *argv[])
{
grub_file_t file = 0;
grub_err_t err;
void *bs, *ntldr;
grub_size_t ntldrsize;
grub_device_t dev;
if (argc == 0)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no file specified");
grub_dl_ref (my_mod);
rel = grub_relocator_new ();
if (!rel)
goto fail;
file = grub_file_open (argv[0]);
if (! file)
goto fail;
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, 0x7C00,
GRUB_DISK_SECTOR_SIZE);
if (err)
goto fail;
bs = get_virtual_current_address (ch);
}
edx = grub_get_root_biosnumber ();
dev = grub_device_open (0);
if (dev && dev->disk)
{
err = grub_disk_read (dev->disk, 0, 0, GRUB_DISK_SECTOR_SIZE, bs);
if (err)
{
grub_device_close (dev);
goto fail;
}
}
if (dev)
grub_device_close (dev);
ntldrsize = grub_file_size (file);
{
grub_relocator_chunk_t ch;
err = grub_relocator_alloc_chunk_addr (rel, &ch, GRUB_NTLDR_SEGMENT << 4,
ntldrsize);
if (err)
goto fail;
ntldr = get_virtual_current_address (ch);
}
if (grub_file_read (file, ntldr, ntldrsize)
!= (grub_ssize_t) ntldrsize)
goto fail;
grub_loader_set (grub_ntldr_boot, grub_ntldr_unload, 1);
return GRUB_ERR_NONE;
fail:
if (file)
grub_file_close (file);
grub_ntldr_unload ();
return grub_errno;
}
static grub_command_t cmd;
GRUB_MOD_INIT(ntldr)
{
cmd = grub_register_command ("ntldr", grub_cmd_ntldr,
0, N_("Load NTLDR or BootMGR."));
my_mod = mod;
}
GRUB_MOD_FINI(ntldr)
{
grub_unregister_command (cmd);
}

110
grub-core/loader/i386/pc/xnu.c Normal file
View file

@ -0,0 +1,110 @@
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 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/env.h>
#include <grub/misc.h>
#include <grub/xnu.h>
#include <grub/mm.h>
#include <grub/cpu/xnu.h>
#include <grub/video_fb.h>
#define min(a,b) (((a) < (b)) ? (a) : (b))
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define DEFAULT_VIDEO_MODE "1024x768x32,800x600x32,640x480x32"
static int NESTED_FUNC_ATTR video_hook (grub_video_adapter_t p __attribute__ ((unused)),
struct grub_video_mode_info *info)
{
if (info->mode_type & GRUB_VIDEO_MODE_TYPE_PURE_TEXT)
return 0;
return 1;
}
/* Setup video for xnu. */
grub_err_t
grub_xnu_set_video (struct grub_xnu_boot_params *params)
{
struct grub_video_mode_info mode_info;
int ret;
char *tmp, *modevar;
void *framebuffer;
grub_err_t err;
modevar = grub_env_get ("gfxpayload");
if (! modevar || *modevar == 0)
err = grub_video_set_mode (DEFAULT_VIDEO_MODE, video_hook);
else
{
tmp = grub_malloc (grub_strlen (modevar)
+ sizeof (DEFAULT_VIDEO_MODE) + 1);
if (! tmp)
return grub_error (GRUB_ERR_OUT_OF_MEMORY,
"couldn't allocate temporary storag");
grub_sprintf (tmp, "%s;" DEFAULT_VIDEO_MODE, modevar);
err = grub_video_set_mode (tmp, video_hook);
grub_free (tmp);
}
if (err)
return err;
if (grub_xnu_bitmap)
{
int x, y;
x = mode_info.width - grub_xnu_bitmap->mode_info.width;
x /= 2;
y = mode_info.height - grub_xnu_bitmap->mode_info.height;
y /= 2;
err = grub_video_blit_bitmap (grub_xnu_bitmap,
GRUB_VIDEO_BLIT_REPLACE,
x > 0 ? x : 0,
y > 0 ? y : 0,
x < 0 ? -x : 0,
y < 0 ? -y : 0,
min (grub_xnu_bitmap->mode_info.width,
mode_info.width),
min (grub_xnu_bitmap->mode_info.height,
mode_info.height));
if (err)
{
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
grub_xnu_bitmap = 0;
}
err = GRUB_ERR_NONE;
}
ret = grub_video_get_info_and_fini (&mode_info, &framebuffer);
if (ret)
return grub_error (GRUB_ERR_IO, "couldn't retrieve video parameters");
params->lfb_width = mode_info.width;
params->lfb_height = mode_info.height;
params->lfb_depth = mode_info.bpp;
params->lfb_line_len = mode_info.pitch;
params->lfb_base = PTR_TO_UINT32 (framebuffer);
params->lfb_mode = grub_xnu_bitmap
? GRUB_XNU_VIDEO_SPLASH : GRUB_XNU_VIDEO_TEXT_IN_VIDEO;
return GRUB_ERR_NONE;
}