mirror of
https://github.com/xen-project/xen.git
synced 2026-10-28 02:01:24 +01:00
Keir Fraser
622e368758
Add support to pygrub and libfsimage to boot ZFS root filesystems. Boot argument of zfs-bootfs is set to describe ZFS root pool and boot filesystem object number. Boot argument bootpath is set to describe the virtual device root mirror components. Signed-off-by: Susan Kamm-Worrell <susan.kamm-worrell@sun.com>
94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
/*
|
|
* GRUB -- GRand Unified Bootloader
|
|
* Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc.
|
|
*
|
|
* This program 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 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program 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 this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
/*
|
|
* Copyright 2007 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
#include "fsys_zfs.h"
|
|
|
|
|
|
void
|
|
fletcher_2_native(const void *buf, uint64_t size, zio_cksum_t *zcp)
|
|
{
|
|
const uint64_t *ip = buf;
|
|
const uint64_t *ipend = ip + (size / sizeof (uint64_t));
|
|
uint64_t a0, b0, a1, b1;
|
|
|
|
for (a0 = b0 = a1 = b1 = 0; ip < ipend; ip += 2) {
|
|
a0 += ip[0];
|
|
a1 += ip[1];
|
|
b0 += a0;
|
|
b1 += a1;
|
|
}
|
|
|
|
ZIO_SET_CHECKSUM(zcp, a0, a1, b0, b1);
|
|
}
|
|
|
|
void
|
|
fletcher_2_byteswap(const void *buf, uint64_t size, zio_cksum_t *zcp)
|
|
{
|
|
const uint64_t *ip = buf;
|
|
const uint64_t *ipend = ip + (size / sizeof (uint64_t));
|
|
uint64_t a0, b0, a1, b1;
|
|
|
|
for (a0 = b0 = a1 = b1 = 0; ip < ipend; ip += 2) {
|
|
a0 += BSWAP_64(ip[0]);
|
|
a1 += BSWAP_64(ip[1]);
|
|
b0 += a0;
|
|
b1 += a1;
|
|
}
|
|
|
|
ZIO_SET_CHECKSUM(zcp, a0, a1, b0, b1);
|
|
}
|
|
|
|
void
|
|
fletcher_4_native(const void *buf, uint64_t size, zio_cksum_t *zcp)
|
|
{
|
|
const uint32_t *ip = buf;
|
|
const uint32_t *ipend = ip + (size / sizeof (uint32_t));
|
|
uint64_t a, b, c, d;
|
|
|
|
for (a = b = c = d = 0; ip < ipend; ip++) {
|
|
a += ip[0];
|
|
b += a;
|
|
c += b;
|
|
d += c;
|
|
}
|
|
|
|
ZIO_SET_CHECKSUM(zcp, a, b, c, d);
|
|
}
|
|
|
|
void
|
|
fletcher_4_byteswap(const void *buf, uint64_t size, zio_cksum_t *zcp)
|
|
{
|
|
const uint32_t *ip = buf;
|
|
const uint32_t *ipend = ip + (size / sizeof (uint32_t));
|
|
uint64_t a, b, c, d;
|
|
|
|
for (a = b = c = d = 0; ip < ipend; ip++) {
|
|
a += BSWAP_32(ip[0]);
|
|
b += a;
|
|
c += b;
|
|
d += c;
|
|
}
|
|
|
|
ZIO_SET_CHECKSUM(zcp, a, b, c, d);
|
|
}
|