1N/A/*
1N/A * GRUB -- GRand Unified Bootloader
1N/A * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
1N/A *
1N/A * This program is free software; you can redistribute it and/or modify
1N/A * it under the terms of the GNU General Public License as published by
1N/A * the Free Software Foundation; either version 2 of the License, or
1N/A * (at your option) any later version.
1N/A *
1N/A * This program is distributed in the hope that it will be useful,
1N/A * but WITHOUT ANY WARRANTY; without even the implied warranty of
1N/A * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1N/A * GNU General Public License for more details.
1N/A *
1N/A * You should have received a copy of the GNU General Public License
1N/A * along with this program; if not, write to the Free Software
1N/A * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
1N/A */
1N/A/*
1N/A * Copyright 2010 Sun Microsystems, Inc. All rights reserved.
1N/A * Use is subject to license terms.
1N/A */
1N/A
1N/A#ifndef _SYS_VDEV_IMPL_H
1N/A#define _SYS_VDEV_IMPL_H
1N/A
1N/A#define VDEV_PAD_SIZE (8 << 10)
1N/A/* 2 padding areas (vl_pad1 and vl_pad2) to skip */
1N/A#define VDEV_SKIP_SIZE VDEV_PAD_SIZE * 2
1N/A#define VDEV_PHYS_SIZE (112 << 10)
1N/A#define VDEV_UBERBLOCK_RING (128 << 10)
1N/A
1N/Atypedef struct vdev_phys {
1N/A char vp_nvlist[VDEV_PHYS_SIZE - sizeof (zio_eck_t)];
1N/A zio_eck_t vp_zbt;
1N/A} vdev_phys_t;
1N/A
1N/Atypedef struct vdev_label {
1N/A char vl_pad1[VDEV_PAD_SIZE]; /* 8K */
1N/A char vl_pad2[VDEV_PAD_SIZE]; /* 8K */
1N/A vdev_phys_t vl_vdev_phys; /* 112K */
1N/A char vl_uberblock[VDEV_UBERBLOCK_RING]; /* 128K */
1N/A} vdev_label_t; /* 256K total */
1N/A
1N/A/*
1N/A * Size and offset of embedded boot loader region on each label.
1N/A * The total size of the first two labels plus the boot area is 4MB.
1N/A */
1N/A#define VDEV_BOOT_OFFSET (2 * sizeof (vdev_label_t))
1N/A#define VDEV_BOOT_SIZE (7ULL << 19) /* 3.5M */
1N/A
1N/A/*
1N/A * Size of label regions at the start and end of each leaf device.
1N/A */
1N/A#define VDEV_LABEL_START_SIZE (2 * sizeof (vdev_label_t) + VDEV_BOOT_SIZE)
1N/A#define VDEV_LABEL_END_SIZE (2 * sizeof (vdev_label_t))
1N/A#define VDEV_LABELS 4
1N/A
1N/A#endif /* _SYS_VDEV_IMPL_H */