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[libvirt] [PATCH 1/4] parallels: remove unused member 'os' from parallelsDomObj
by Dmitry Guryanov 27 Sep '12

27 Sep '12

Signed-off-by: Dmitry Guryanov <dguryanov(a)parallels.com> --- src/parallels/parallels_utils.h | 1 - 1 files changed, 0 insertions(+), 1 deletions(-) diff --git a/src/parallels/parallels_utils.h b/src/parallels/parallels_utils.h index 082ee75..6a27003 100644 --- a/src/parallels/parallels_utils.h +++ b/src/parallels/parallels_utils.h @@ -44,7 +44,6 @@ typedef struct _parallelsConn *parallelsConnPtr; struct parallelsDomObj { int id; char *uuid; - char *os; }; typedef struct parallelsDomObj *parallelsDomObjPtr; -- 1.7.1

3 12

[libvirt] [PATCH] Fix deadlock in handling EOF in LXC monitor
by Daniel P. Berrange 26 Sep '12

26 Sep '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Depending on the scenario in which LXC containers exit, it is possible for the EOF callback of the LXC monitor to deadlock the driver. When the driver calls virLXCMonitorClose, there is really no need for the EOF callback to be invoked in this case, since the caller can easily handle events itself. In changing this, the monitor needs to take a deep copy of the callback list, not merely a reference. Also adds debug statements in various places to aid troubleshooting Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/lxc/lxc_monitor.c | 32 ++++++++++++++++++++++---------- src/lxc/lxc_process.c | 6 +++++- 2 files changed, 27 insertions(+), 11 deletions(-) diff --git a/src/lxc/lxc_monitor.c b/src/lxc/lxc_monitor.c index 772c613..3e00751 100644 --- a/src/lxc/lxc_monitor.c +++ b/src/lxc/lxc_monitor.c @@ -40,7 +40,7 @@ struct _virLXCMonitor { virMutex lock; virDomainObjPtr vm; - virLXCMonitorCallbacksPtr cb; + virLXCMonitorCallbacks cb; virNetClientPtr client; virNetClientProgramPtr program; @@ -83,8 +83,8 @@ virLXCMonitorHandleEventExit(virNetClientProgramPtr prog ATTRIBUTE_UNUSED, virLXCProtocolExitEventMsg *msg = evdata; VIR_DEBUG("Event exit %d", msg->status); - if (mon->cb->exitNotify) - mon->cb->exitNotify(mon, msg->status, mon->vm); + if (mon->cb.exitNotify) + mon->cb.exitNotify(mon, msg->status, mon->vm); } @@ -96,20 +96,25 @@ static void virLXCMonitorEOFNotify(virNetClientPtr client ATTRIBUTE_UNUSED, virLXCMonitorCallbackEOFNotify eofNotify; virDomainObjPtr vm; - VIR_DEBUG("EOF notify"); + VIR_DEBUG("EOF notify mon=%p", mon); virLXCMonitorLock(mon); - eofNotify = mon->cb->eofNotify; + eofNotify = mon->cb.eofNotify; vm = mon->vm; virLXCMonitorUnlock(mon); - eofNotify(mon, vm); + if (eofNotify) { + VIR_DEBUG("EOF callback mon=%p vm=%p", mon, vm); + eofNotify(mon, vm); + } else { + VIR_DEBUG("No EOF callback"); + } } static void virLXCMonitorCloseFreeCallback(void *opaque) { virLXCMonitorPtr mon = opaque; - virObjectUnref(mon);; + virObjectUnref(mon); } @@ -155,7 +160,7 @@ virLXCMonitorPtr virLXCMonitorNew(virDomainObjPtr vm, goto error; mon->vm = vm; - mon->cb = cb; + memcpy(&mon->cb, cb, sizeof(mon->cb)); virObjectRef(mon); virNetClientSetCloseCallback(mon->client, virLXCMonitorEOFNotify, mon, @@ -179,8 +184,8 @@ static void virLXCMonitorDispose(void *opaque) virLXCMonitorPtr mon = opaque; VIR_DEBUG("mon=%p", mon); - if (mon->cb && mon->cb->destroy) - (mon->cb->destroy)(mon, mon->vm); + if (mon->cb.destroy) + (mon->cb.destroy)(mon, mon->vm); virMutexDestroy(&mon->lock); virObjectUnref(mon->program); } @@ -188,7 +193,14 @@ static void virLXCMonitorDispose(void *opaque) void virLXCMonitorClose(virLXCMonitorPtr mon) { + VIR_DEBUG("mon=%p", mon); if (mon->client) { + /* When manually closing the monitor, we don't + * want to have callbacks back into us, since + * the caller is not re-entrant safe + */ + VIR_DEBUG("Clear EOF callback mon=%p", mon); + mon->cb.eofNotify = NULL; virNetClientClose(mon->client); virObjectUnref(mon->client); mon->client = NULL; diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c index b9cff85..079bc3a 100644 --- a/src/lxc/lxc_process.c +++ b/src/lxc/lxc_process.c @@ -169,6 +169,8 @@ virLXCProcessReboot(virLXCDriverPtr driver, int ret = -1; virDomainDefPtr savedDef; + VIR_DEBUG("Faking reboot"); + if (conn) { virConnectRef(conn); autodestroy = true; @@ -555,13 +557,15 @@ cleanup: extern virLXCDriverPtr lxc_driver; -static void virLXCProcessMonitorEOFNotify(virLXCMonitorPtr mon ATTRIBUTE_UNUSED, +static void virLXCProcessMonitorEOFNotify(virLXCMonitorPtr mon, virDomainObjPtr vm) { virLXCDriverPtr driver = lxc_driver; virDomainEventPtr event = NULL; virLXCDomainObjPrivatePtr priv; + VIR_DEBUG("mon=%p vm=%p", mon, vm); + lxcDriverLock(driver); virDomainObjLock(vm); lxcDriverUnlock(driver); -- 1.7.11.2

2 1

[libvirt] [libvirt-glib PATCHv2 1/3] Implement gvir_config_domain_graphics_vnc_set_socket
by Christophe Fergeau 26 Sep '12

26 Sep '12

--- libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c | 10 ++++++++++ libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.h | 3 +++ libvirt-gconfig/libvirt-gconfig.sym | 2 ++ 3 files changed, 15 insertions(+) diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c b/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c index f2fc9d5..c9fc408 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c @@ -76,6 +76,16 @@ gvir_config_domain_graphics_vnc_new_from_xml(const gchar *xml, } +void gvir_config_domain_graphics_vnc_set_socket(GVirConfigDomainGraphicsVnc *graphics, + const char *socket) +{ + g_return_if_fail(GVIR_CONFIG_IS_DOMAIN_GRAPHICS_VNC(graphics)); + + gvir_config_object_set_attribute(GVIR_CONFIG_OBJECT(graphics), + "socket", socket, + NULL); +} + void gvir_config_domain_graphics_vnc_set_autoport(GVirConfigDomainGraphicsVnc *graphics, gboolean autoport) { diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.h b/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.h index e3183d7..0d3173c 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.h +++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.h @@ -62,6 +62,9 @@ GVirConfigDomainGraphicsVnc *gvir_config_domain_graphics_vnc_new(void); GVirConfigDomainGraphicsVnc *gvir_config_domain_graphics_vnc_new_from_xml(const gchar *xml, GError **error); +void gvir_config_domain_graphics_vnc_set_socket(GVirConfigDomainGraphicsVnc *graphics, + const char *socket); + void gvir_config_domain_graphics_vnc_set_autoport(GVirConfigDomainGraphicsVnc *graphics, gboolean autoport); diff --git a/libvirt-gconfig/libvirt-gconfig.sym b/libvirt-gconfig/libvirt-gconfig.sym index f83eabb..c60cc4e 100644 --- a/libvirt-gconfig/libvirt-gconfig.sym +++ b/libvirt-gconfig/libvirt-gconfig.sym @@ -464,6 +464,8 @@ LIBVIRT_GCONFIG_0.1.3 { global: gvir_config_domain_get_current_memory; gvir_config_domain_set_current_memory; + + gvir_config_domain_graphics_vnc_set_socket; } LIBVIRT_GCONFIG_0.1.0; # .... define new API here using predicted next version number .... -- 1.7.11.4

2 5

[libvirt] [PATCH 00/13] parallels: implement operations with hard disks
by Dmitry Guryanov 26 Sep '12

26 Sep '12

This patch series adds ability to list existing disk images, create a new ones and add or remove hard disk devices to the VM. Dmitry Guryanov (13): parallels: add info about hard disk devices parallels: handle disk devices in parallelsDomainDefineXML parallels: split parallelsStorageOpen function parallels: remove unused code from storage driver parallels: create storage pools by VM list parallels: fix leaks in parallelsFindVolumes parallels: add info about volumes parallels: fill volumes capacity parameter parallels: split parallelsStorageVolumeDelete function parallels: add function parallelsGetDiskBusName parallels: add support of disks creation parallels: apply config after VM creation parallels: add support of removing disks src/parallels/parallels_driver.c | 346 +++++++++++++++++++++++++-- src/parallels/parallels_storage.c | 478 +++++++++++++++++++++++++++++++------ src/parallels/parallels_utils.h | 3 + 3 files changed, 731 insertions(+), 96 deletions(-)

1 13

[libvirt] [PATCH] Change qemuSetSchedularParameters to use AFFECT_CURRENT
by Daniel P. Berrange 26 Sep '12

26 Sep '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> When adding variants of parameter setting APIs which accepted flags, the existing APIs were all adapted internally to pass VIR_DOMAIN_AFFECT_CURRENT to the new API. The QEMU impl qemuSetSchedularParameters was an exception, which instead used VIR_DOMAIN_AFFECT_LIVE. Change this to match other compatibility scenarios, so that calling virDomainSetSchedularParameters(dom, params, nparams); Has the same semantics as virDomainSetSchedularParametersFlags(dom, params, nparams, 0); And virDomainSetSchedularParametersFlags(dom, params, nparams, VIR_DOMAIN_AFFECT_CURRENT); Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/qemu/qemu_driver.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 7ac53ac..d6ecde8 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -8007,7 +8007,7 @@ qemuSetSchedulerParameters(virDomainPtr dom, return qemuSetSchedulerParametersFlags(dom, params, nparams, - VIR_DOMAIN_AFFECT_LIVE); + VIR_DOMAIN_AFFECT_CURRENT); } static int -- 1.7.11.2

2 1

[libvirt] [PATCH v4] qemu: wait for SPICE to migrate
by Michal Privoznik 26 Sep '12

26 Sep '12

Recently, there have been some improvements made to qemu so it supports seamless migration or something very close to it. However, it requires libvirt interaction. Once qemu is migrated, the SPICE server needs to send its internal state to the destination. Once it's done, it fires SPICE_MIGRATE_COMPLETED event and this fact is advertised in 'query-spice' output as well. We must not kill qemu until SPICE server finishes the transfer. --- diff to v3: -drop wait_for_spice argument in qemuMigrationUpdateJobStatus -refactor wait_for_spice computation -s/VIR_ERR_CONFIG_UNSUPPORTED/VIR_ERR_OPERATION_UNSUPPORTED src/qemu/qemu_capabilities.c | 3 ++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 8 ++++++ src/qemu/qemu_migration.c | 19 ++++++++++++++- src/qemu/qemu_monitor.c | 24 +++++++++++++++++++ src/qemu/qemu_monitor.h | 2 + src/qemu/qemu_monitor_json.c | 52 ++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 3 ++ 8 files changed, 111 insertions(+), 1 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 3b08ef8..be86014 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -183,6 +183,7 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST, "reboot-timeout", /* 110 */ "dump-guest-core", + "seamless-migration", ); struct _qemuCaps { @@ -1149,6 +1150,8 @@ qemuCapsComputeCmdFlags(const char *help, } if (strstr(help, "-spice")) qemuCapsSet(caps, QEMU_CAPS_SPICE); + if (strstr(help, "seamless-migration=")) + qemuCapsSet(caps, QEMU_CAPS_SEAMLESS_MIGRATION); if (strstr(help, "boot=on")) qemuCapsSet(caps, QEMU_CAPS_DRIVE_BOOT); if (strstr(help, "serial=s")) diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 485c297..9e4543a 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -147,6 +147,7 @@ enum qemuCapsFlags { QEMU_CAPS_SECCOMP_SANDBOX = 109, /* -sandbox */ QEMU_CAPS_REBOOT_TIMEOUT = 110, /* -boot reboot-timeout */ QEMU_CAPS_DUMP_GUEST_CORE = 111, /* dump-guest-core-parameter */ + QEMU_CAPS_SEAMLESS_MIGRATION = 112, /* seamless-migration for SPICE */ QEMU_CAPS_LAST, /* this must always be the last item */ }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index e7bb88e..4e14ae3 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -6150,6 +6150,14 @@ qemuBuildCommandLine(virConnectPtr conn, if (def->graphics[0]->data.spice.copypaste == VIR_DOMAIN_GRAPHICS_SPICE_CLIPBOARD_COPYPASTE_NO) virBufferAddLit(&opt, ",disable-copy-paste"); + if (qemuCapsGet(caps, QEMU_CAPS_SEAMLESS_MIGRATION)) { + /* If qemu supports seamless migration turn it + * unconditionally on. If migration destination + * doesn't support it, it fallbacks to previous + * migration algorithm silently. */ + virBufferAddLit(&opt, ",seamless-migration=on"); + } + virCommandAddArg(cmd, "-spice"); virCommandAddArgBuffer(cmd, &opt); if (def->graphics[0]->data.spice.keymap) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 8e85875..db69a0a 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -896,10 +896,19 @@ qemuMigrationUpdateJobStatus(struct qemud_driver *driver, qemuDomainObjPrivatePtr priv = vm->privateData; int ret; int status; + bool wait_for_spice = false; + bool spice_migrated = false; unsigned long long memProcessed; unsigned long long memRemaining; unsigned long long memTotal; + /* If guest uses SPICE and supports seamles_migration we have to hold up + * migration finish until SPICE server transfers its data */ + if (vm->def->ngraphics == 1 && + vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE && + qemuCapsGet(priv->caps, QEMU_CAPS_SEAMLESS_MIGRATION)) + wait_for_spice = true; + ret = qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob); if (ret < 0) { /* Guest already exited; nothing further to update. */ @@ -910,6 +919,13 @@ qemuMigrationUpdateJobStatus(struct qemud_driver *driver, &memProcessed, &memRemaining, &memTotal); + + /* If qemu says migrated, check spice */ + if (wait_for_spice && (ret == 0) && + (status == QEMU_MONITOR_MIGRATION_STATUS_COMPLETED)) + ret = qemuMonitorGetSpiceMigrationStatus(priv->mon, + &spice_migrated); + qemuDomainObjExitMonitorWithDriver(driver, vm); if (ret < 0 || virTimeMillisNow(&priv->job.info.timeElapsed) < 0) { @@ -939,7 +955,8 @@ qemuMigrationUpdateJobStatus(struct qemud_driver *driver, break; case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED: - priv->job.info.type = VIR_DOMAIN_JOB_COMPLETED; + if ((wait_for_spice && spice_migrated) || (!wait_for_spice)) + priv->job.info.type = VIR_DOMAIN_JOB_COMPLETED; ret = 0; break; diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index fa3b7b2..201b1f4 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -1827,6 +1827,30 @@ int qemuMonitorGetMigrationStatus(qemuMonitorPtr mon, } +int qemuMonitorGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated) +{ + int ret; + VIR_DEBUG("mon=%p", mon); + + if (!mon) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("monitor must not be NULL")); + return -1; + } + + if (mon->json) { + ret = qemuMonitorJSONGetSpiceMigrationStatus(mon, spice_migrated); + } else { + virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s", + _("JSON monitor is required")); + return -1; + } + + return ret; +} + + int qemuMonitorMigrateToFd(qemuMonitorPtr mon, unsigned int flags, int fd) diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index 6b4eb6f..3455ab9 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -343,6 +343,8 @@ int qemuMonitorGetMigrationStatus(qemuMonitorPtr mon, unsigned long long *transferred, unsigned long long *remaining, unsigned long long *total); +int qemuMonitorGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated); typedef enum { QEMU_MONITOR_MIGRATE_BACKGROUND = 1 << 0, diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index f372199..c55ee2b 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -2490,6 +2490,58 @@ int qemuMonitorJSONGetMigrationStatus(qemuMonitorPtr mon, } +static int +qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, + bool *spice_migrated) +{ + virJSONValuePtr ret; + const char *migrated_str; + + if (!(ret = virJSONValueObjectGet(reply, "return"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("query-spice reply was missing return data")); + return -1; + } + + if (!(migrated_str = virJSONValueObjectGetString(ret, "migrated"))) { + /* Deliberately don't report error here as we are + * probably dealing with older qemu which doesn't + * report this yet. Pretend spice is migrated. */ + *spice_migrated = true; + } else { + *spice_migrated = STREQ(migrated_str, "true"); + } + + return 0; +} + + +int qemuMonitorJSONGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated) +{ + int ret; + virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-spice", + NULL); + virJSONValuePtr reply = NULL; + + if (!cmd) + return -1; + + ret = qemuMonitorJSONCommand(mon, cmd, &reply); + + if (ret == 0) + ret = qemuMonitorJSONCheckError(cmd, reply); + + if (ret == 0) + ret = qemuMonitorJSONSpiceGetMigrationStatusReply(reply, + spice_migrated); + + virJSONValueFree(cmd); + virJSONValueFree(reply); + return ret; +} + + int qemuMonitorJSONMigrate(qemuMonitorPtr mon, unsigned int flags, const char *uri) diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h index e531eb1..751b81f 100644 --- a/src/qemu/qemu_monitor_json.h +++ b/src/qemu/qemu_monitor_json.h @@ -134,6 +134,9 @@ int qemuMonitorJSONGetMigrationStatus(qemuMonitorPtr mon, int qemuMonitorJSONMigrate(qemuMonitorPtr mon, unsigned int flags, const char *uri); +int qemuMonitorJSONGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated); + int qemuMonitorJSONMigrateCancel(qemuMonitorPtr mon); -- 1.7.8.6

2 2

[libvirt] [PATCH] Simplify some redundant locking while unref'ing objects
by Daniel P. Berrange 26 Sep '12

26 Sep '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> There is no need to hold the mutex when unref'ing virObject instances Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/conf/domain_conf.c | 4 +--- src/qemu/qemu_driver.c | 4 ++-- src/rpc/virnetserver.c | 3 --- 3 files changed, 3 insertions(+), 8 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 4aa08d0..0514540 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -741,9 +741,7 @@ static void virDomainObjListDataFree(void *payload, const void *name ATTRIBUTE_UNUSED) { virDomainObjPtr obj = payload; - virDomainObjLock(obj); - if (virObjectUnref(obj)) - virDomainObjUnlock(obj); + virObjectUnref(obj); } int virDomainObjListInit(virDomainObjListPtr doms) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 6848924..e963ed3 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -3499,8 +3499,8 @@ endjob: ignore_value(qemuDomainObjEndAsyncJob(driver, wdEvent->vm)); unlock: - if (virObjectUnref(wdEvent->vm)) - virDomainObjUnlock(wdEvent->vm); + virDomainObjUnlock(wdEvent->vm); + virObjectUnref(wdEvent->vm); qemuDriverUnlock(driver); VIR_FREE(wdEvent); } diff --git a/src/rpc/virnetserver.c b/src/rpc/virnetserver.c index 23493bd..ae4ed46 100644 --- a/src/rpc/virnetserver.c +++ b/src/rpc/virnetserver.c @@ -191,10 +191,7 @@ static void virNetServerHandleJob(void *jobOpaque, void *opaque) if (virNetServerProcessMsg(srv, job->client, job->prog, job->msg) < 0) goto error; - virNetServerLock(srv); virObjectUnref(job->prog); - virNetServerUnlock(srv); - virObjectUnref(job->client); VIR_FREE(job); return; -- 1.7.11.2

2 2

[libvirt] [PATCH v3] qemu: wait for SPICE to migrate
by Michal Privoznik 26 Sep '12

26 Sep '12

Recently, there have been some improvements made to qemu so it supports seamless migration or something very close to it. However, it requires libvirt interaction. Once qemu is migrated, the SPICE server needs to send its internal state to the destination. Once it's done, it fires SPICE_MIGRATE_COMPLETED event and this fact is advertised in 'query-spice' output as well. We must not kill qemu until SPICE server finishes the transfer. --- src/qemu/qemu_capabilities.c | 4 +++ src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 8 ++++++ src/qemu/qemu_migration.c | 33 ++++++++++++++++++++++++-- src/qemu/qemu_monitor.c | 24 +++++++++++++++++++ src/qemu/qemu_monitor.h | 2 + src/qemu/qemu_monitor_json.c | 52 ++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 3 ++ 8 files changed, 124 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index 278b550..26364ec 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -180,6 +180,8 @@ VIR_ENUM_IMPL(qemuCaps, QEMU_CAPS_LAST, "ide-drive.wwn", "scsi-disk.wwn", "seccomp-sandbox", + + "seamless-migration", /* 110 */ ); struct _qemuCaps { @@ -1146,6 +1148,8 @@ qemuCapsComputeCmdFlags(const char *help, } if (strstr(help, "-spice")) qemuCapsSet(caps, QEMU_CAPS_SPICE); + if (strstr(help, "seamless-migration=")) + qemuCapsSet(caps, QEMU_CAPS_SEAMLESS_MIGRATION); if (strstr(help, "boot=on")) qemuCapsSet(caps, QEMU_CAPS_DRIVE_BOOT); if (strstr(help, "serial=s")) diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 4da2a29..2567fd7 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -145,6 +145,7 @@ enum qemuCapsFlags { QEMU_CAPS_IDE_DRIVE_WWN = 107, /* Is ide-drive.wwn available? */ QEMU_CAPS_SCSI_DISK_WWN = 108, /* Is scsi-disk.wwn available? */ QEMU_CAPS_SECCOMP_SANDBOX = 109, /* -sandbox */ + QEMU_CAPS_SEAMLESS_MIGRATION = 110, /* seamless-migration for SPICE */ QEMU_CAPS_LAST, /* this must always be the last item */ }; diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index cbf4aee..33f7e55 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -6081,6 +6081,14 @@ qemuBuildCommandLine(virConnectPtr conn, if (def->graphics[0]->data.spice.copypaste == VIR_DOMAIN_GRAPHICS_SPICE_CLIPBOARD_COPYPASTE_NO) virBufferAddLit(&opt, ",disable-copy-paste"); + if (qemuCapsGet(caps, QEMU_CAPS_SEAMLESS_MIGRATION)) { + /* If qemu supports seamless migration turn it + * unconditionally on. If migration destination + * doesn't support it, it fallbacks to previous + * migration algorithm silently. */ + virBufferAddLit(&opt, ",seamless-migration=on"); + } + virCommandAddArg(cmd, "-spice"); virCommandAddArgBuffer(cmd, &opt); if (def->graphics[0]->data.spice.keymap) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 99fc8ce..114d04a 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -891,11 +891,13 @@ static int qemuMigrationUpdateJobStatus(struct qemud_driver *driver, virDomainObjPtr vm, const char *job, - enum qemuDomainAsyncJob asyncJob) + enum qemuDomainAsyncJob asyncJob, + bool wait_for_spice) { qemuDomainObjPrivatePtr priv = vm->privateData; int ret; int status; + bool spice_migrated = true; unsigned long long memProcessed; unsigned long long memRemaining; unsigned long long memTotal; @@ -910,6 +912,13 @@ qemuMigrationUpdateJobStatus(struct qemud_driver *driver, &memProcessed, &memRemaining, &memTotal); + + /* If qemu says migrated, check spice */ + if (wait_for_spice && (ret == 0) && + (status == QEMU_MONITOR_MIGRATION_STATUS_COMPLETED)) + ret = qemuMonitorGetSpiceMigrationStatus(priv->mon, + &spice_migrated); + qemuDomainObjExitMonitorWithDriver(driver, vm); if (ret < 0 || virTimeMillisNow(&priv->job.info.timeElapsed) < 0) { @@ -940,6 +949,8 @@ qemuMigrationUpdateJobStatus(struct qemud_driver *driver, case QEMU_MONITOR_MIGRATION_STATUS_COMPLETED: priv->job.info.type = VIR_DOMAIN_JOB_COMPLETED; + if (spice_migrated) + priv->job.info.type = VIR_DOMAIN_JOB_COMPLETED; ret = 0; break; @@ -967,6 +978,13 @@ qemuMigrationWaitForCompletion(struct qemud_driver *driver, virDomainObjPtr vm, { qemuDomainObjPrivatePtr priv = vm->privateData; const char *job; + bool wait_for_spice; + + /* If guest uses SPICE and supports seamles_migration we have to hold up + * migration finish until SPICE server transfers its data */ + wait_for_spice = (vm->def->ngraphics == 1) && + (vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) && + qemuCapsGet(priv->caps, QEMU_CAPS_SEAMLESS_MIGRATION); switch (priv->job.asyncJob) { case QEMU_ASYNC_JOB_MIGRATION_OUT: @@ -988,7 +1006,8 @@ qemuMigrationWaitForCompletion(struct qemud_driver *driver, virDomainObjPtr vm, /* Poll every 50ms for progress & to allow cancellation */ struct timespec ts = { .tv_sec = 0, .tv_nsec = 50 * 1000 * 1000ull }; - if (qemuMigrationUpdateJobStatus(driver, vm, job, asyncJob) < 0) + if (qemuMigrationUpdateJobStatus(driver, vm, job, + asyncJob, wait_for_spice) < 0) goto cleanup; if (dconn && virConnectIsAlive(dconn) <= 0) { @@ -1840,6 +1859,7 @@ qemuMigrationRun(struct qemud_driver *driver, int fd = -1; unsigned long migrate_speed = resource ? resource : priv->migMaxBandwidth; virErrorPtr orig_err = NULL; + bool wait_for_spice; VIR_DEBUG("driver=%p, vm=%p, cookiein=%s, cookieinlen=%d, " "cookieout=%p, cookieoutlen=%p, flags=%lx, resource=%lu, " @@ -1848,6 +1868,12 @@ qemuMigrationRun(struct qemud_driver *driver, cookieout, cookieoutlen, flags, resource, spec, spec->destType, spec->fwdType); + /* If guest uses SPICE and supports seamless migration we have to hold up + * migration finish until SPICE server transfers its data */ + wait_for_spice = (vm->def->ngraphics == 1) && + (vm->def->graphics[0]->type == VIR_DOMAIN_GRAPHICS_TYPE_SPICE) && + qemuCapsGet(priv->caps, QEMU_CAPS_SEAMLESS_MIGRATION); + if (virLockManagerPluginUsesState(driver->lockManager) && !cookieout) { virReportError(VIR_ERR_INTERNAL_ERROR, @@ -1946,7 +1972,8 @@ qemuMigrationRun(struct qemud_driver *driver, * connection from qemu which may never be initiated. */ if (qemuMigrationUpdateJobStatus(driver, vm, _("migration job"), - QEMU_ASYNC_JOB_MIGRATION_OUT) < 0) + QEMU_ASYNC_JOB_MIGRATION_OUT, + wait_for_spice) < 0) goto cancel; while ((fd = accept(spec->dest.unix_socket.sock, NULL, NULL)) < 0) { diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index f36c8a8..7695a81 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -1827,6 +1827,30 @@ int qemuMonitorGetMigrationStatus(qemuMonitorPtr mon, } +int qemuMonitorGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated) +{ + int ret; + VIR_DEBUG("mon=%p", mon); + + if (!mon) { + virReportError(VIR_ERR_INVALID_ARG, "%s", + _("monitor must not be NULL")); + return -1; + } + + if (mon->json) { + ret = qemuMonitorJSONGetSpiceMigrationStatus(mon, spice_migrated); + } else { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("JSON monitor is required")); + return -1; + } + + return ret; +} + + int qemuMonitorMigrateToFd(qemuMonitorPtr mon, unsigned int flags, int fd) diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index 3ebfa3b..bfbeee8 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -343,6 +343,8 @@ int qemuMonitorGetMigrationStatus(qemuMonitorPtr mon, unsigned long long *transferred, unsigned long long *remaining, unsigned long long *total); +int qemuMonitorGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated); typedef enum { QEMU_MONITOR_MIGRATE_BACKGROUND = 1 << 0, diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index d3a9943..2b77a00 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -2490,6 +2490,58 @@ int qemuMonitorJSONGetMigrationStatus(qemuMonitorPtr mon, } +static int +qemuMonitorJSONSpiceGetMigrationStatusReply(virJSONValuePtr reply, + bool *spice_migrated) +{ + virJSONValuePtr ret; + const char *migrated_str; + + if (!(ret = virJSONValueObjectGet(reply, "return"))) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("query-spice reply was missing return data")); + return -1; + } + + if (!(migrated_str = virJSONValueObjectGetString(ret, "migrated"))) { + /* Deliberately don't report error here as we are + * probably dealing with older qemu which doesn't + * report this yet. Pretend spice is migrated. */ + *spice_migrated = true; + } else { + *spice_migrated = STREQ(migrated_str, "true"); + } + + return 0; +} + + +int qemuMonitorJSONGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated) +{ + int ret; + virJSONValuePtr cmd = qemuMonitorJSONMakeCommand("query-spice", + NULL); + virJSONValuePtr reply = NULL; + + if (!cmd) + return -1; + + ret = qemuMonitorJSONCommand(mon, cmd, &reply); + + if (ret == 0) + ret = qemuMonitorJSONCheckError(cmd, reply); + + if (ret == 0) + ret = qemuMonitorJSONSpiceGetMigrationStatusReply(reply, + spice_migrated); + + virJSONValueFree(cmd); + virJSONValueFree(reply); + return ret; +} + + int qemuMonitorJSONMigrate(qemuMonitorPtr mon, unsigned int flags, const char *uri) diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h index 8e80856..120e2e1 100644 --- a/src/qemu/qemu_monitor_json.h +++ b/src/qemu/qemu_monitor_json.h @@ -134,6 +134,9 @@ int qemuMonitorJSONGetMigrationStatus(qemuMonitorPtr mon, int qemuMonitorJSONMigrate(qemuMonitorPtr mon, unsigned int flags, const char *uri); +int qemuMonitorJSONGetSpiceMigrationStatus(qemuMonitorPtr mon, + bool *spice_migrated); + int qemuMonitorJSONMigrateCancel(qemuMonitorPtr mon); -- 1.7.8.6

2 4

[libvirt] [libvirt-glib PATCHv3] Fix *_new_from_xml
by Christophe Fergeau 26 Sep '12

26 Sep '12

For objects with a subtype 'type' attribute, when the _new_from_xml function was called, the 'type' attribute was forcefully set to the right value rather than checking that the passed-in value matches the type of the subclass we are trying to instantiate. This commit changes this, and returns NULL when the value of the 'type' attribute of the passed-in XML document does not match the expected type. --- libvirt-gconfig/libvirt-gconfig-domain-address-pci.c | 5 ++++- libvirt-gconfig/libvirt-gconfig-domain-address-usb.c | 5 ++++- libvirt-gconfig/libvirt-gconfig-domain-chardev-source-pty.c | 5 ++++- libvirt-gconfig/libvirt-gconfig-domain-chardev-source-spicevmc.c | 5 ++++- libvirt-gconfig/libvirt-gconfig-domain-controller-usb.c | 5 ++++- libvirt-gconfig/libvirt-gconfig-domain-graphics-sdl.c | 5 +++-- libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c | 5 +++-- libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c | 5 +++-- libvirt-gconfig/libvirt-gconfig-domain-interface-bridge.c | 5 +++-- libvirt-gconfig/libvirt-gconfig-domain-interface-network.c | 5 +++-- libvirt-gconfig/libvirt-gconfig-domain-interface-user.c | 5 +++-- libvirt-gconfig/libvirt-gconfig-domain-timer-pit.c | 5 ++++- libvirt-gconfig/libvirt-gconfig-domain-timer-rtc.c | 5 ++++- 13 files changed, 46 insertions(+), 19 deletions(-) diff --git a/libvirt-gconfig/libvirt-gconfig-domain-address-pci.c b/libvirt-gconfig/libvirt-gconfig-domain-address-pci.c index 48e3872..9ad7765 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-address-pci.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-address-pci.c @@ -67,7 +67,10 @@ GVirConfigDomainAddressPci *gvir_config_domain_address_pci_new_from_xml(const gc object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_ADDRESS_PCI, "address", NULL, xml, error); - gvir_config_object_set_attribute(object, "type", "pci", NULL); + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "pci") != 0) { + g_object_unref(G_OBJECT(object)); + g_return_val_if_reached(NULL); + } return GVIR_CONFIG_DOMAIN_ADDRESS_PCI(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-address-usb.c b/libvirt-gconfig/libvirt-gconfig-domain-address-usb.c index 3da5811..cb7a986 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-address-usb.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-address-usb.c @@ -67,7 +67,10 @@ GVirConfigDomainAddressUsb *gvir_config_domain_address_usb_new_from_xml(const gc object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_ADDRESS_USB, "address", NULL, xml, error); - gvir_config_object_set_attribute(object, "type", "usb", NULL); + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "usb") != 0) { + g_object_unref(G_OBJECT(object)); + g_return_val_if_reached(NULL); + } return GVIR_CONFIG_DOMAIN_ADDRESS_USB(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-pty.c b/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-pty.c index 201e123..8b14330 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-pty.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-pty.c @@ -75,7 +75,10 @@ GVirConfigDomainChardevSourcePty *gvir_config_domain_chardev_source_pty_new_from */ object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_CHARDEV_SOURCE_PTY, "dummy", NULL, xml, error); - gvir_config_object_set_attribute(object, "type", "pty", NULL); + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "pty") != 0) { + g_object_unref(G_OBJECT(object)); + g_return_val_if_reached(NULL); + } return GVIR_CONFIG_DOMAIN_CHARDEV_SOURCE_PTY(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-spicevmc.c b/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-spicevmc.c index 22eabf5..10c0ab8 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-spicevmc.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-chardev-source-spicevmc.c @@ -75,6 +75,9 @@ GVirConfigDomainChardevSourceSpiceVmc *gvir_config_domain_chardev_source_spicevm */ object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_CHARDEV_SOURCE_SPICE_VMC, "dummy", NULL, xml, error); - gvir_config_object_set_attribute(object, "type", "spicevmc", NULL); + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "spicevmc") != 0) { + g_object_unref(G_OBJECT(object)); + g_return_val_if_reached(NULL); + } return GVIR_CONFIG_DOMAIN_CHARDEV_SOURCE_SPICE_VMC(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-controller-usb.c b/libvirt-gconfig/libvirt-gconfig-domain-controller-usb.c index 1fd248c..d7d7f65 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-controller-usb.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-controller-usb.c @@ -167,7 +167,10 @@ GVirConfigDomainControllerUsb *gvir_config_domain_controller_usb_new_from_xml(co object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_CONTROLLER_USB, "controller", NULL, xml, error); - gvir_config_object_set_attribute(object, "type", "usb", NULL); + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "usb") != 0) { + g_object_unref(G_OBJECT(object)); + g_return_val_if_reached(NULL); + } return GVIR_CONFIG_DOMAIN_CONTROLLER_USB(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-sdl.c b/libvirt-gconfig/libvirt-gconfig-domain-graphics-sdl.c index 7871ae5..8b22ad0 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-graphics-sdl.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-sdl.c @@ -68,9 +68,10 @@ gvir_config_domain_graphics_sdl_new_from_xml(const gchar *xml, object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SDL, "graphics", NULL, xml, error); - if (object == NULL) + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "sdl") != 0) { + g_object_unref(G_OBJECT(object)); return NULL; - gvir_config_object_set_attribute(object, "type", "sdl", NULL); + } return GVIR_CONFIG_DOMAIN_GRAPHICS_SDL(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c index e60a778..61d3f5b 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c @@ -68,9 +68,10 @@ gvir_config_domain_graphics_spice_new_from_xml(const gchar *xml, object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE, "graphics", NULL, xml, error); - if (object == NULL) + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "spice") != 0) { + g_object_unref(G_OBJECT(object)); return NULL; - gvir_config_object_set_attribute(object, "type", "spice", NULL); + } return GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c b/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c index d9d1303..f2fc9d5 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.c @@ -68,9 +68,10 @@ gvir_config_domain_graphics_vnc_new_from_xml(const gchar *xml, object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_VNC, "graphics", NULL, xml, error); - if (object == NULL) + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "vnc") != 0) { + g_object_unref(G_OBJECT(object)); return NULL; - gvir_config_object_set_attribute(object, "type", "vnc", NULL); + } return GVIR_CONFIG_DOMAIN_GRAPHICS_VNC(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-interface-bridge.c b/libvirt-gconfig/libvirt-gconfig-domain-interface-bridge.c index ea5eafa..09a7efc 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-interface-bridge.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-interface-bridge.c @@ -70,9 +70,10 @@ GVirConfigDomainInterfaceBridge *gvir_config_domain_interface_bridge_new_from_xm object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_INTERFACE_BRIDGE, "interface", NULL, xml, error); - if (object == NULL) + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "bridge") != 0) { + g_object_unref(G_OBJECT(object)); return NULL; - gvir_config_object_set_attribute(object, "type", "bridge", NULL); + } return GVIR_CONFIG_DOMAIN_INTERFACE_BRIDGE(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-interface-network.c b/libvirt-gconfig/libvirt-gconfig-domain-interface-network.c index 1a7bfad..ce39234 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-interface-network.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-interface-network.c @@ -69,9 +69,10 @@ GVirConfigDomainInterfaceNetwork *gvir_config_domain_interface_network_new_from_ object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_INTERFACE_NETWORK, "interface", NULL, xml, error); - if (object == NULL) + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "network") != 0) { + g_object_unref(G_OBJECT(object)); return NULL; - gvir_config_object_set_attribute(object, "type", "network", NULL); + } return GVIR_CONFIG_DOMAIN_INTERFACE_NETWORK(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-interface-user.c b/libvirt-gconfig/libvirt-gconfig-domain-interface-user.c index a455a73..4ede31f 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-interface-user.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-interface-user.c @@ -69,8 +69,9 @@ GVirConfigDomainInterfaceUser *gvir_config_domain_interface_user_new_from_xml(co object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_INTERFACE_USER, "interface", NULL, xml, error); - if (object == NULL) + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "user") != 0) { + g_object_unref(G_OBJECT(object)); return NULL; - gvir_config_object_set_attribute(object, "type", "user", NULL); + } return GVIR_CONFIG_DOMAIN_INTERFACE_USER(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-timer-pit.c b/libvirt-gconfig/libvirt-gconfig-domain-timer-pit.c index d75cd30..d5e57f1 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-timer-pit.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-timer-pit.c @@ -67,6 +67,9 @@ GVirConfigDomainTimerPit *gvir_config_domain_timer_pit_new_from_xml(const gchar object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_TIMER_PIT, "timer", NULL, xml, error); - gvir_config_object_set_attribute(object, "name", "pit", NULL); + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "pit") != 0) { + g_object_unref(G_OBJECT(object)); + g_return_val_if_reached(NULL); + } return GVIR_CONFIG_DOMAIN_TIMER_PIT(object); } diff --git a/libvirt-gconfig/libvirt-gconfig-domain-timer-rtc.c b/libvirt-gconfig/libvirt-gconfig-domain-timer-rtc.c index b99c1e3..64b7f80 100644 --- a/libvirt-gconfig/libvirt-gconfig-domain-timer-rtc.c +++ b/libvirt-gconfig/libvirt-gconfig-domain-timer-rtc.c @@ -67,6 +67,9 @@ GVirConfigDomainTimerRtc *gvir_config_domain_timer_rtc_new_from_xml(const gchar object = gvir_config_object_new_from_xml(GVIR_CONFIG_TYPE_DOMAIN_TIMER_RTC, "timer", NULL, xml, error); - gvir_config_object_set_attribute(object, "name", "rtc", NULL); + if (g_strcmp0(gvir_config_object_get_attribute(object, NULL, "type"), "rtc") != 0) { + g_object_unref(G_OBJECT(object)); + g_return_val_if_reached(NULL); + } return GVIR_CONFIG_DOMAIN_TIMER_RTC(object); } -- 1.7.10.4

2 3

[libvirt] [PATCH] Remove pointless virLXCProcessMonitorDestroy method
by Daniel P. Berrange 26 Sep '12

26 Sep '12

From: "Daniel P. Berrange" <berrange(a)redhat.com> Asynchronously setting priv->mon to NULL was pointless, just remove the destroy callback entirely. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/lxc/lxc_process.c | 15 --------------- 1 file changed, 15 deletions(-) diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c index 15572cd..b9cff85 100644 --- a/src/lxc/lxc_process.c +++ b/src/lxc/lxc_process.c @@ -554,20 +554,6 @@ cleanup: } -static void virLXCProcessMonitorDestroy(virLXCMonitorPtr mon, - virDomainObjPtr vm) -{ - virLXCDomainObjPrivatePtr priv; - - virDomainObjLock(vm); - priv = vm->privateData; - if (priv->monitor == mon) - priv->monitor = NULL; - if (virObjectUnref(vm)) - virDomainObjUnlock(vm); -} - - extern virLXCDriverPtr lxc_driver; static void virLXCProcessMonitorEOFNotify(virLXCMonitorPtr mon ATTRIBUTE_UNUSED, virDomainObjPtr vm) @@ -649,7 +635,6 @@ static void virLXCProcessMonitorExitNotify(virLXCMonitorPtr mon ATTRIBUTE_UNUSED static virLXCMonitorCallbacks monitorCallbacks = { .eofNotify = virLXCProcessMonitorEOFNotify, - .destroy = virLXCProcessMonitorDestroy, .exitNotify = virLXCProcessMonitorExitNotify, }; -- 1.7.11.2

2 1