ia64/xen-unstable

view tools/libfsimage/zfs/zfs-include/vdev_impl.h @ 19648:f0e2df69a8eb

x86 hvm: Allow cross-vendor migration

Intercept #UD and emulate SYSCALL/SYSENTER/SYSEXIT as necessary.

Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>
Signed-off-by: Keir Fraser <keir.fraser@citrix.com>
author Keir Fraser <keir.fraser@citrix.com>
date Tue May 26 15:01:36 2009 +0100 (2009-05-26)
parents 64f790e90d3d
children
line source
1 /*
2 * GRUB -- GRand Unified Bootloader
3 * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
18 */
19 /*
20 * Copyright 2007 Sun Microsystems, Inc. All rights reserved.
21 * Use is subject to license terms.
22 */
24 #ifndef _SYS_VDEV_IMPL_H
25 #define _SYS_VDEV_IMPL_H
27 #define VDEV_SKIP_SIZE (8 << 10)
28 #define VDEV_BOOT_HEADER_SIZE (8 << 10)
29 #define VDEV_PHYS_SIZE (112 << 10)
30 #define VDEV_UBERBLOCK_RING (128 << 10)
32 /* ZFS boot block */
33 #define VDEV_BOOT_MAGIC 0x2f5b007b10cULL
34 #define VDEV_BOOT_VERSION 1 /* version number */
36 typedef struct vdev_boot_header {
37 uint64_t vb_magic; /* VDEV_BOOT_MAGIC */
38 uint64_t vb_version; /* VDEV_BOOT_VERSION */
39 uint64_t vb_offset; /* start offset (bytes) */
40 uint64_t vb_size; /* size (bytes) */
41 char vb_pad[VDEV_BOOT_HEADER_SIZE - 4 * sizeof (uint64_t)];
42 } vdev_boot_header_t;
44 typedef struct vdev_phys {
45 char vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_block_tail_t)];
46 zio_block_tail_t vp_zbt;
47 } vdev_phys_t;
49 typedef struct vdev_label {
50 char vl_pad[VDEV_SKIP_SIZE]; /* 8K */
51 vdev_boot_header_t vl_boot_header; /* 8K */
52 vdev_phys_t vl_vdev_phys; /* 112K */
53 char vl_uberblock[VDEV_UBERBLOCK_RING]; /* 128K */
54 } vdev_label_t; /* 256K total */
56 /*
57 * Size and offset of embedded boot loader region on each label.
58 * The total size of the first two labels plus the boot area is 4MB.
59 */
60 #define VDEV_BOOT_OFFSET (2 * sizeof (vdev_label_t))
61 #define VDEV_BOOT_SIZE (7ULL << 19) /* 3.5M */
63 /*
64 * Size of label regions at the start and end of each leaf device.
65 */
66 #define VDEV_LABEL_START_SIZE (2 * sizeof (vdev_label_t) + VDEV_BOOT_SIZE)
67 #define VDEV_LABEL_END_SIZE (2 * sizeof (vdev_label_t))
68 #define VDEV_LABELS 4
70 #endif /* _SYS_VDEV_IMPL_H */