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4d83a6722f
https://bugzilla.redhat.com/show_bug.cgi?id=1461214
Since fec8f9c49a we try to use predictable file names for
'memory-backend-file' objects. But that made us provide full path
to qemu when hot plugging the object while previously we provided
merely a directory. But this makes qemu behave differently. If
qemu sees a path terminated with a directory it calls mkstemp()
and unlinks the file immediately. But if it sees full path it
just calls open(path, O_CREAT ..); and never unlinks the file.
Therefore it's up to libvirt to unlink the file and not leave it
behind.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
211 lines
8.5 KiB
C
211 lines
8.5 KiB
C
/*
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* qemu_process.h: QEMU process management
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*
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* Copyright (C) 2006-2012, 2015 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef __QEMU_PROCESS_H__
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# define __QEMU_PROCESS_H__
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# include "qemu_conf.h"
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# include "qemu_domain.h"
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int qemuProcessPrepareMonitorChr(virDomainChrSourceDefPtr monConfig,
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const char *domainDir);
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int qemuProcessStartCPUs(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virConnectPtr conn,
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virDomainRunningReason reason,
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qemuDomainAsyncJob asyncJob);
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int qemuProcessStopCPUs(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virDomainPausedReason reason,
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qemuDomainAsyncJob asyncJob);
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int qemuProcessBuildDestroyMemoryPaths(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virDomainMemoryDefPtr mem,
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bool build);
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int qemuProcessDestroyMemoryBackingPath(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virDomainMemoryDefPtr mem);
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void qemuProcessAutostartAll(virQEMUDriverPtr driver);
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void qemuProcessReconnectAll(virConnectPtr conn, virQEMUDriverPtr driver);
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typedef struct _qemuProcessIncomingDef qemuProcessIncomingDef;
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typedef qemuProcessIncomingDef *qemuProcessIncomingDefPtr;
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struct _qemuProcessIncomingDef {
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char *address; /* address where QEMU is supposed to listen */
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char *launchURI; /* used as a parameter for -incoming command line option */
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char *deferredURI; /* used when calling migrate-incoming QMP command */
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int fd; /* for fd:N URI */
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const char *path; /* path associated with fd */
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};
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qemuProcessIncomingDefPtr qemuProcessIncomingDefNew(virQEMUCapsPtr qemuCaps,
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const char *listenAddress,
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const char *migrateFrom,
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int fd,
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const char *path);
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void qemuProcessIncomingDefFree(qemuProcessIncomingDefPtr inc);
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int qemuProcessBeginJob(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virDomainJobOperation operation);
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void qemuProcessEndJob(virQEMUDriverPtr driver,
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virDomainObjPtr vm);
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typedef enum {
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VIR_QEMU_PROCESS_START_COLD = 1 << 0,
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VIR_QEMU_PROCESS_START_PAUSED = 1 << 1,
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VIR_QEMU_PROCESS_START_AUTODESTROY = 1 << 2,
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VIR_QEMU_PROCESS_START_PRETEND = 1 << 3,
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VIR_QEMU_PROCESS_START_NEW = 1 << 4, /* internal, new VM is starting */
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} qemuProcessStartFlags;
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int qemuProcessStart(virConnectPtr conn,
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virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virCPUDefPtr updatedCPU,
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qemuDomainAsyncJob asyncJob,
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const char *migrateFrom,
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int stdin_fd,
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const char *stdin_path,
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virDomainSnapshotObjPtr snapshot,
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virNetDevVPortProfileOp vmop,
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unsigned int flags);
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virCommandPtr qemuProcessCreatePretendCmd(virConnectPtr conn,
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virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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const char *migrateURI,
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bool enableFips,
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bool standalone,
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unsigned int flags);
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int qemuProcessInit(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virCPUDefPtr updatedCPU,
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qemuDomainAsyncJob asyncJob,
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bool migration,
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unsigned int flags);
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int qemuProcessPrepareDomain(virConnectPtr conn,
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virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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unsigned int flags);
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int qemuProcessPrepareHost(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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unsigned int flags);
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int qemuProcessLaunch(virConnectPtr conn,
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virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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qemuDomainAsyncJob asyncJob,
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qemuProcessIncomingDefPtr incoming,
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virDomainSnapshotObjPtr snapshot,
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virNetDevVPortProfileOp vmop,
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unsigned int flags);
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int qemuProcessFinishStartup(virConnectPtr conn,
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virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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qemuDomainAsyncJob asyncJob,
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bool startCPUs,
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virDomainPausedReason pausedReason);
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int qemuProcessRefreshState(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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qemuDomainAsyncJob asyncJob);
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typedef enum {
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VIR_QEMU_PROCESS_STOP_MIGRATED = 1 << 0,
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VIR_QEMU_PROCESS_STOP_NO_RELABEL = 1 << 1,
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} qemuProcessStopFlags;
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int qemuProcessBeginStopJob(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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qemuDomainJob job,
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bool forceKill);
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void qemuProcessStop(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virDomainShutoffReason reason,
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qemuDomainAsyncJob asyncJob,
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unsigned int flags);
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int qemuProcessAttach(virConnectPtr conn,
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virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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pid_t pid,
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const char *pidfile,
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virDomainChrSourceDefPtr monConfig,
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bool monJSON);
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typedef enum {
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VIR_QEMU_PROCESS_KILL_FORCE = 1 << 0,
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VIR_QEMU_PROCESS_KILL_NOWAIT = 1 << 1,
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VIR_QEMU_PROCESS_KILL_NOCHECK = 1 << 2, /* bypass the running vm check */
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} virQemuProcessKillMode;
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int qemuProcessKill(virDomainObjPtr vm, unsigned int flags);
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void qemuProcessShutdownOrReboot(virQEMUDriverPtr driver,
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virDomainObjPtr vm);
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int qemuProcessAutoDestroyInit(virQEMUDriverPtr driver);
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void qemuProcessAutoDestroyShutdown(virQEMUDriverPtr driver);
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int qemuProcessAutoDestroyAdd(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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virConnectPtr conn);
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int qemuProcessAutoDestroyRemove(virQEMUDriverPtr driver,
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virDomainObjPtr vm);
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bool qemuProcessAutoDestroyActive(virQEMUDriverPtr driver,
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virDomainObjPtr vm);
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int qemuProcessSetSchedParams(int id, pid_t pid, size_t nsp,
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virDomainThreadSchedParamPtr sp);
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virDomainDiskDefPtr qemuProcessFindDomainDiskByAlias(virDomainObjPtr vm,
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const char *alias);
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int qemuConnectAgent(virQEMUDriverPtr driver, virDomainObjPtr vm);
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int qemuProcessSetupVcpu(virDomainObjPtr vm,
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unsigned int vcpuid);
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int qemuProcessSetupIOThread(virDomainObjPtr vm,
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virDomainIOThreadIDDefPtr iothread);
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int qemuRefreshVirtioChannelState(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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qemuDomainAsyncJob asyncJob);
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int qemuProcessRefreshBalloonState(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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int asyncJob);
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int qemuProcessRefreshDisks(virQEMUDriverPtr driver,
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virDomainObjPtr vm,
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qemuDomainAsyncJob asyncJob);
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#endif /* __QEMU_PROCESS_H__ */
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