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/*
* qemu_saveimage.h: Infrastructure for saving qemu state to a file
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "virconftypes.h"
#include "qemu_conf.h"
#include "qemu_domain.h"
/* It would be nice to replace 'Qemud' with 'Qemu' but
* this magic string is ABI, so it can't be changed
*/
#define QEMU_SAVE_MAGIC "LibvirtQemudSave"
#define QEMU_SAVE_PARTIAL "LibvirtQemudPart"
#define QEMU_SAVE_VERSION 2
G_STATIC_ASSERT(sizeof(QEMU_SAVE_MAGIC) == sizeof(QEMU_SAVE_PARTIAL));
typedef struct _virQEMUSaveHeader virQEMUSaveHeader;
struct _virQEMUSaveHeader {
char magic[sizeof(QEMU_SAVE_MAGIC)-1];
uint32_t version;
uint32_t data_len;
uint32_t was_running;
uint32_t compressed;
uint32_t cookieOffset;
uint32_t unused[14];
};
typedef struct _virQEMUSaveData virQEMUSaveData;
struct _virQEMUSaveData {
virQEMUSaveHeader header;
char *xml;
char *cookie;
};
virDomainDef *
qemuSaveImageUpdateDef(virQEMUDriver *driver,
virDomainDef *def,
const char *newxml);
int
qemuSaveImageStartVM(virConnectPtr conn,
virQEMUDriver *driver,
virDomainObj *vm,
int *fd,
virQEMUSaveData *data,
const char *path,
bool start_paused,
bool reset_nvram,
virDomainAsyncJob asyncJob)
ATTRIBUTE_NONNULL(4) ATTRIBUTE_NONNULL(5) ATTRIBUTE_NONNULL(6);
int
qemuSaveImageOpen(virQEMUDriver *driver,
virQEMUCaps *qemuCaps,
const char *path,
virDomainDef **ret_def,
virQEMUSaveData **ret_data,
bool bypass_cache,
virFileWrapperFd **wrapperFd,
bool open_write,
bool unlink_corrupt)
ATTRIBUTE_NONNULL(3) ATTRIBUTE_NONNULL(4);
int
qemuSaveImageGetCompressionProgram(const char *imageFormat,
virCommand **compressor,
const char *styleFormat,
bool use_raw_on_fail)
ATTRIBUTE_NONNULL(2);
int
qemuSaveImageCreate(virQEMUDriver *driver,
virDomainObj *vm,
const char *path,
virQEMUSaveData *data,
virCommand *compressor,
unsigned int flags,
virDomainAsyncJob asyncJob);
int
virQEMUSaveDataWrite(virQEMUSaveData *data,
int fd,
const char *path);
virQEMUSaveData *
virQEMUSaveDataNew(char *domXML,
qemuDomainSaveCookie *cookieObj,
bool running,
int compressed,
virDomainXMLOption *xmlopt);
void
virQEMUSaveDataFree(virQEMUSaveData *data);
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