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Support ZFS embedding.

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* grub-core/fs/zfs/zfs.c (grub_zfs_embed): New function.
	(grub_zfs_fs): Register grub_zfs_embed.
This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-11-12 21:46:52 +01:00
parent aa94b87027
commit ba102053ce
2 changed files with 40 additions and 0 deletions
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7
ChangeLog
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@ -1,3 +1,10 @@
2011-11-12 Vladimir Serbinenko <phcoder@gmail.com>
Support ZFS embedding.
* grub-core/fs/zfs/zfs.c (grub_zfs_embed): New function.
(grub_zfs_fs): Register grub_zfs_embed.
2011-11-12 Vladimir Serbinenko <phcoder@gmail.com>
Fix MIPS compilation.

33
grub-core/fs/zfs/zfs.c
View file

@ -3806,6 +3806,35 @@ grub_zfs_dir (grub_device_t device, const char *path,
return grub_errno;
}
#ifdef GRUB_UTIL
static grub_err_t
grub_zfs_embed (grub_device_t device __attribute__ ((unused)),
unsigned int *nsectors,
grub_embed_type_t embed_type,
grub_disk_addr_t **sectors)
{
unsigned i;
if (embed_type != GRUB_EMBED_PCBIOS)
return grub_error (GRUB_ERR_NOT_IMPLEMENTED_YET,
"ZFS currently supports only PC-BIOS embedding");
if ((VDEV_BOOT_SIZE >> GRUB_DISK_SECTOR_BITS) < *nsectors)
return grub_error (GRUB_ERR_OUT_OF_RANGE,
"Your core.img is unusually large. "
"It won't fit in the embedding area.");
*nsectors = (VDEV_BOOT_SIZE >> GRUB_DISK_SECTOR_BITS);
*sectors = grub_malloc (*nsectors * sizeof (**sectors));
if (!*sectors)
return grub_errno;
for (i = 0; i < *nsectors; i++)
(*sectors)[i] = i + (VDEV_BOOT_OFFSET >> GRUB_DISK_SECTOR_BITS);
return GRUB_ERR_NONE;
}
#endif
static struct grub_fs grub_zfs_fs = {
.name = "zfs",
.dir = grub_zfs_dir,
@ -3815,6 +3844,10 @@ static struct grub_fs grub_zfs_fs = {
.label = zfs_label,
.uuid = zfs_uuid,
.mtime = zfs_mtime,
#ifdef GRUB_UTIL
.embed = grub_zfs_embed,
.reserved_first_sector = 1,
#endif
.next = 0
};