mirror of
https://github.com/qemu/qemu.git
synced 2024-11-25 20:03:37 +08:00
05efe46eaa
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@927 c046a42c-6fe2-441c-8c8c-71466251a162
73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/*
|
|
Copyright (C) Matthew Chapman 2003
|
|
|
|
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.
|
|
*/
|
|
|
|
#define SECTOR_BITS 9
|
|
#define SECTOR_SIZE (1 << SECTOR_BITS)
|
|
#define SECTOR_MASK (SECTOR_SIZE - 1)
|
|
|
|
#define L1_BITS (SECTOR_BITS - 3)
|
|
#define L1_SIZE (1 << L1_BITS)
|
|
#define L1_MASK (L1_SIZE - 1)
|
|
|
|
#define L2_BITS SECTOR_BITS
|
|
#define L2_SIZE (1 << L2_BITS)
|
|
#define L2_MASK (L2_SIZE - 1)
|
|
|
|
#define MIN(x,y) (((x) < (y)) ? (x) : (y))
|
|
|
|
struct cowdisk_header
|
|
{
|
|
uint32_t version;
|
|
uint32_t flags;
|
|
uint32_t disk_sectors;
|
|
uint32_t granularity;
|
|
uint32_t l1dir_offset;
|
|
uint32_t l1dir_size;
|
|
uint32_t file_sectors;
|
|
uint32_t cylinders;
|
|
uint32_t heads;
|
|
uint32_t sectors_per_track;
|
|
};
|
|
|
|
struct cowdisk_header2
|
|
{
|
|
uint32_t parent_ts;
|
|
uint32_t timestamp;
|
|
};
|
|
|
|
/* based on vdk 3.1 10-11-2003 by Ken Kato */
|
|
|
|
struct vmdisk_header
|
|
{
|
|
uint32_t version;
|
|
uint32_t flags;
|
|
|
|
int64_t capacity;
|
|
int64_t granularity;
|
|
int64_t desc_offset;
|
|
int64_t desc_size;
|
|
int32_t num_gtes_per_gte;
|
|
int64_t rgd_offset;
|
|
int64_t gd_offset;
|
|
int64_t grain_offset;
|
|
|
|
char filler[1];
|
|
|
|
char check_bytes[4];
|
|
};
|