libvirt/src/qemu/qemu_command.h
Peter Krempa dfc980ab97 qemu: Add possibility to prepare top image only for attachment via blockdev
qemuBuildStorageSourceChainAttachPrepareBlockdev prepares the full
backing chain for attachment via blockdev. For snapshots we'll need to
prepare one image only as it needs to be plugged on top of the existing
chain.

This patch introduces qemuBuildStorageSourceChainAttachPrepareBlockdevTop
which prepares only @top similarly to the original function by splitting
out the functionality into an internal function so that the API does not
change.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-07-25 13:21:32 +02:00

243 lines
9.2 KiB
C

/*
* qemu_command.h: QEMU command generation
*
* Copyright (C) 2006-2016 Red Hat, Inc.
* Copyright (C) 2006 Daniel P. Berrange
*
* 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 "domain_addr.h"
#include "domain_conf.h"
#include "vircommand.h"
#include "virenum.h"
#include "capabilities.h"
#include "qemu_block.h"
#include "qemu_conf.h"
#include "qemu_domain.h"
#include "qemu_domain_address.h"
#include "qemu_capabilities.h"
#include "logging/log_manager.h"
/* Config type for XML import/export conversions */
#define QEMU_CONFIG_FORMAT_ARGV "qemu-argv"
#define QEMU_FSDEV_HOST_PREFIX "fsdev-"
#define QEMU_BLOCK_IOTUNE_MAX 1000000000000000LL
VIR_ENUM_DECL(qemuVideo);
virCommandPtr qemuBuildCommandLine(virQEMUDriverPtr driver,
virLogManagerPtr logManager,
virSecurityManagerPtr secManager,
virDomainObjPtr vm,
const char *migrateURI,
virDomainMomentObjPtr snapshot,
virNetDevVPortProfileOp vmop,
bool standalone,
bool enableFips,
size_t *nnicindexes,
int **nicindexes);
/* Generate the object properties for pr-manager */
virJSONValuePtr qemuBuildPRManagerInfoProps(virStorageSourcePtr src);
virJSONValuePtr qemuBuildPRManagedManagerInfoProps(qemuDomainObjPrivatePtr priv);
/* Generate the object properties for a secret */
int qemuBuildSecretInfoProps(qemuDomainSecretInfoPtr secinfo,
virJSONValuePtr *propsret);
/* Generate the object properties for a tls-creds-x509 */
int qemuBuildTLSx509BackendProps(const char *tlspath,
bool isListen,
bool verifypeer,
const char *alias,
const char *secalias,
virQEMUCapsPtr qemuCaps,
virJSONValuePtr *propsret);
/* Open a UNIX socket for chardev FD passing */
int
qemuOpenChrChardevUNIXSocket(const virDomainChrSourceDef *dev);
/* Generate '-device' string for chardev device */
int
qemuBuildChrDeviceStr(char **deviceStr,
const virDomainDef *vmdef,
virDomainChrDefPtr chr,
virQEMUCapsPtr qemuCaps);
char *qemuBuildHostNetStr(virDomainNetDefPtr net,
virQEMUDriverPtr driver,
char **tapfd,
size_t tapfdSize,
char **vhostfd,
size_t vhostfdSize);
/* Current, best practice */
char *qemuBuildNicDevStr(virDomainDefPtr def,
virDomainNetDefPtr net,
unsigned int bootindex,
size_t vhostfdSize,
virQEMUCapsPtr qemuCaps);
char *qemuDeviceDriveHostAlias(virDomainDiskDefPtr disk);
bool qemuDiskBusNeedsDriveArg(int bus);
qemuBlockStorageSourceAttachDataPtr
qemuBuildStorageSourceAttachPrepareDrive(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps);
int
qemuBuildStorageSourceAttachPrepareCommon(virStorageSourcePtr src,
qemuBlockStorageSourceAttachDataPtr data,
virQEMUCapsPtr qemuCaps);
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareDrive(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps);
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareBlockdev(virStorageSourcePtr top,
virQEMUCapsPtr qemuCaps);
qemuBlockStorageSourceChainDataPtr
qemuBuildStorageSourceChainAttachPrepareBlockdevTop(virStorageSourcePtr top,
virQEMUCapsPtr qemuCaps);
char
*qemuBuildDiskDeviceStr(const virDomainDef *def,
virDomainDiskDefPtr disk,
unsigned int bootindex,
virQEMUCapsPtr qemuCaps);
/* Current, best practice */
int qemuBuildControllerDevStr(const virDomainDef *domainDef,
virDomainControllerDefPtr def,
virQEMUCapsPtr qemuCaps,
char **devstr);
int qemuBuildMemoryBackendProps(virJSONValuePtr *backendProps,
const char *alias,
virQEMUDriverConfigPtr cfg,
qemuDomainObjPrivatePtr priv,
virDomainDefPtr def,
virDomainMemoryDefPtr mem,
bool force);
char *qemuBuildMemoryDeviceStr(virDomainMemoryDefPtr mem,
qemuDomainObjPrivatePtr priv);
/* Current, best practice */
char *qemuBuildPCIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
unsigned int bootIndex,
const char *configfd,
virQEMUCapsPtr qemuCaps);
char *qemuBuildRNGDevStr(const virDomainDef *def,
virDomainRNGDefPtr dev,
virQEMUCapsPtr qemuCaps);
int qemuBuildRNGBackendProps(virDomainRNGDefPtr rng,
virQEMUCapsPtr qemuCaps,
virJSONValuePtr *props);
int qemuOpenPCIConfig(virDomainHostdevDefPtr dev);
/* Current, best practice */
char *qemuBuildUSBHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps);
char *qemuBuildSCSIHostdevDrvStr(virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps);
char *qemuBuildSCSIHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev);
char *
qemuBuildSCSIVHostHostdevDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps,
char *vhostfdName);
char *
qemuBuildHostdevMediatedDevStr(const virDomainDef *def,
virDomainHostdevDefPtr dev,
virQEMUCapsPtr qemuCaps);
char *qemuBuildRedirdevDevStr(const virDomainDef *def,
virDomainRedirdevDefPtr dev,
virQEMUCapsPtr qemuCaps);
char *qemuBuildZPCIDevStr(virDomainDeviceInfoPtr dev);
int qemuNetworkPrepareDevices(virDomainDefPtr def);
int qemuGetDriveSourceString(virStorageSourcePtr src,
qemuDomainSecretInfoPtr secinfo,
char **source);
bool
qemuDiskConfigBlkdeviotuneEnabled(virDomainDiskDefPtr disk);
int qemuCheckDiskConfig(virDomainDiskDefPtr disk,
virQEMUCapsPtr qemuCaps);
bool
qemuCheckFips(void);
virJSONValuePtr qemuBuildHotpluggableCPUProps(const virDomainVcpuDef *vcpu)
ATTRIBUTE_NONNULL(1);
virJSONValuePtr qemuBuildShmemBackendMemProps(virDomainShmemDefPtr shmem)
ATTRIBUTE_NONNULL(1);
char *qemuBuildShmemDevStr(virDomainDefPtr def,
virDomainShmemDefPtr shmem,
virQEMUCapsPtr qemuCaps)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3);
char *qemuBuildWatchdogDevStr(const virDomainDef *def,
virDomainWatchdogDefPtr dev,
virQEMUCapsPtr qemuCaps);
int qemuBuildInputDevStr(char **devstr,
const virDomainDef *def,
virDomainInputDefPtr input,
virQEMUCapsPtr qemuCaps)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_NONNULL(4);
char *
qemuBuildVsockDevStr(virDomainDefPtr def,
virDomainVsockDefPtr vsock,
virQEMUCapsPtr qemuCaps,
const char *fdprefix)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_NONNULL(4);
/* this function is exported so that tests can mock the FDs */
int
qemuBuildTPMOpenBackendFDs(const char *tpmdev,
const char *cancel_path,
int *tpmfd,
int *cancelfd)
ATTRIBUTE_NONNULL(1) ATTRIBUTE_NONNULL(2) ATTRIBUTE_NONNULL(3)
ATTRIBUTE_NONNULL(4);