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block/parallels: move some structures into header
To implement xml format, some defines and structures from parallels.c are required. Signed-off-by: Klim Kireev <klim.kireev@virtuozzo.com> Reviewed-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Denis V. Lunev <den@openvz.org> Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> Signed-off-by: Edgar Kaziakhmedov <edgar.kaziakhmedov@virtuozzo.com> Message-id: 20180112090122.1702-4-klim.kireev@virtuozzo.com CC: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
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/* | ||
* Block driver for Parallels disk image format | ||
* | ||
* Copyright (c) 2015-2017 Virtuozzo, Inc. | ||
* Authors: | ||
* 2016-2017 Klim S. Kireev <klim.kireev@virtuozzo.com> | ||
* 2015 Denis V. Lunev <den@openvz.org> | ||
* | ||
* This code was originally based on comparing different disk images created | ||
* by Parallels. Currently it is based on opened OpenVZ sources | ||
* available at | ||
* https://github.com/OpenVZ/ploop | ||
* | ||
* Permission is hereby granted, free of charge, to any person obtaining a copy | ||
* of this software and associated documentation files (the "Software"), to deal | ||
* in the Software without restriction, including without limitation the rights | ||
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
* copies of the Software, and to permit persons to whom the Software is | ||
* furnished to do so, subject to the following conditions: | ||
* | ||
* The above copyright notice and this permission notice shall be included in | ||
* all copies or substantial portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
* THE SOFTWARE. | ||
*/ | ||
#ifndef BLOCK_PARALLELS_H | ||
#define BLOCK_PARALLELS_H | ||
#include "qemu/coroutine.h" | ||
#include "qemu/typedefs.h" | ||
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#define DEFAULT_CLUSTER_SIZE 1048576 /* 1 MiB */ | ||
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/* always little-endian */ | ||
typedef struct ParallelsHeader { | ||
char magic[16]; /* "WithoutFreeSpace" */ | ||
uint32_t version; | ||
uint32_t heads; | ||
uint32_t cylinders; | ||
uint32_t tracks; | ||
uint32_t bat_entries; | ||
uint64_t nb_sectors; | ||
uint32_t inuse; | ||
uint32_t data_off; | ||
char padding[12]; | ||
} QEMU_PACKED ParallelsHeader; | ||
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typedef enum ParallelsPreallocMode { | ||
PRL_PREALLOC_MODE_FALLOCATE = 0, | ||
PRL_PREALLOC_MODE_TRUNCATE = 1, | ||
PRL_PREALLOC_MODE__MAX = 2, | ||
} ParallelsPreallocMode; | ||
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typedef struct BDRVParallelsState { | ||
/** Locking is conservative, the lock protects | ||
* - image file extending (truncate, fallocate) | ||
* - any access to block allocation table | ||
*/ | ||
CoMutex lock; | ||
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ParallelsHeader *header; | ||
uint32_t header_size; | ||
bool header_unclean; | ||
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unsigned long *bat_dirty_bmap; | ||
unsigned int bat_dirty_block; | ||
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uint32_t *bat_bitmap; | ||
unsigned int bat_size; | ||
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int64_t data_end; | ||
uint64_t prealloc_size; | ||
ParallelsPreallocMode prealloc_mode; | ||
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unsigned int tracks; | ||
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unsigned int off_multiplier; | ||
Error *migration_blocker; | ||
} BDRVParallelsState; | ||
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#endif |