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[libvirt] Support for kvm=off cpu option
by Alex Williamson 15 Aug '14

15 Aug '14

As of QEMU 2.1 we now have a new -cpu option, kvm=on|off which controls whether we expose KVM as the hypervisor via the MSR hypervisor nodes. The default is on. The off state is meant to hide kvm from standard detection routines. This allows us to disable paravirtualization detection in the guest and can be used to bypass hypervisor checks in certain guest drivers[1]. How would we like to enable this in libvirt? One option would be a processor feature, ex: <feature policy='disable' name='kvm'/> But since this doesn't map to a cpuid feature, I don't know if that would be acceptable. Another option might be to a domain feature, similar to some of the other hyper-v related flags. <domain type='kvm'> <features> <kvm> <kvm state='off'> </kvm> <hyperv> <relaxed state='on'> ... </hyperv> </features> ... </domain> Any other suggestions? Preference? Thanks, Alex [1] http://lists.gnu.org/archive/html/qemu-devel/2014-06/msg00302.html

2 2

[libvirt] Suboptimal default cpu Cgroup
by Radim Krčmář 15 Aug '14

15 Aug '14

Hello, by default, libvirt with KVM creates a Cgroup hierarchy in 'cpu,cpuacct' [1], with 'shares' set to 1024 on every level. This raises two points: 1) Every VM is given an equal amount of CPU time. [2] ($CG/machine.slice/*/shares = 1024) Which means that smaller / less loaded guests are given an advantage. 2) All VMs combined are given 1024 shares. [3] ($CG/machine.slice/shares) This is made even worse on RHEL7, by sched_autogroup_enabled = 0, so every other process in the system is given the same amount of CPU as all VMs combined. It does not seem to be possible to tune shares and get a good general behavior, so the best solution I can see is to disable the cpu cgroup and let users do it when needed. (Keeping all tasks in $CG/tasks.) Do we want cgroups in the default at all? (Is OpenStack dealing with these quirks?) Thanks. --- 1: machine.slice/ machine-qemu\\x2d${name}.scope/ {emulator,vcpu*}/ 2: To reproduce, run two guests with > 1 VCPU and execute two spinners on the first and one on the second. The result will be 50%/50% CPU assignment between guests; 66%/33% seems more natural, but it could still be considered as a feature. 3: Run a guest with $n VCPUs and $n spinners in it, and $n spinners in the host - RHEL7: 1/($n + 1)% CPU for the guest -- I'd expect 50%/50%. - Upstream: 50%/50% between guest and host because of autogrouping; if you run $n more spinners in the host, it will still be 50%/50%, instead of seemingly more fair 33%/66%. (And you can run spinners from different groups, so it would be the same as in RHEL7 then.) And it also works the other way: if the host has $n CPUs, then $n/2 tasks in the host suffice to minimize VMs' performance, regardless of the amount of running VCPUs.

4 9

[libvirt] [PATCH 1/2] conf: make disk source pool translation generic
by Roman Bogorodskiy 15 Aug '14

15 Aug '14

Currently, qemu driver uses qemuTranslateDiskSourcePool() to translate disk volume information. This function is general enough and could be used for other drivers as well, so move it to conf/domain_conf.c along with its helpers. - qemuTranslateDiskSourcePool: move to conf/domain_conf.c and rename to virDomainTranslateDiskSourcePool, - qemuAddISCSIPoolSourceHost: move to conf/domain_conf.c and rename to virDomainAddISCSIPoolSourceHost, - qemuTranslateDiskSourcePoolAuth: move to conf/domain_conf.c and rename to virDomainTranslateDiskSourcePoolAuth, - Expose virDomainTranslateDiskSourcePool through libvirt_private.syms, - Update users of virDomainTranslateDiskSourcePool to use a new name. --- src/conf/domain_conf.c | 245 +++++++++++++++++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 3 + src/libvirt_private.syms | 1 + src/qemu/qemu_conf.c | 243 ---------------------------------------------- src/qemu/qemu_conf.h | 3 - src/qemu/qemu_driver.c | 6 +- src/qemu/qemu_hotplug.c | 2 +- src/qemu/qemu_process.c | 4 +- tests/qemuxml2argvtest.c | 2 +- 9 files changed, 256 insertions(+), 253 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 5c762fa..d5f80e0 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -20045,6 +20045,251 @@ virDomainDiskSourceIsBlockType(virDomainDiskDefPtr def) } +static int +virDomainAddISCSIPoolSourceHost(virDomainDiskDefPtr def, + virStoragePoolDefPtr pooldef) +{ + int ret = -1; + char **tokens = NULL; + + /* Only support one host */ + if (pooldef->source.nhost != 1) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Expected exactly 1 host for the storage pool")); + goto cleanup; + } + + /* iscsi pool only supports one host */ + def->src->nhosts = 1; + + if (VIR_ALLOC_N(def->src->hosts, def->src->nhosts) < 0) + goto cleanup; + + if (VIR_STRDUP(def->src->hosts[0].name, pooldef->source.hosts[0].name) < 0) + goto cleanup; + + if (virAsprintf(&def->src->hosts[0].port, "%d", + pooldef->source.hosts[0].port ? + pooldef->source.hosts[0].port : + 3260) < 0) + goto cleanup; + + /* iscsi volume has name like "unit:0:0:1" */ + if (!(tokens = virStringSplit(def->src->srcpool->volume, ":", 0))) + goto cleanup; + + if (virStringListLength(tokens) != 4) { + virReportError(VIR_ERR_INTERNAL_ERROR, + _("unexpected iscsi volume name '%s'"), + def->src->srcpool->volume); + goto cleanup; + } + + /* iscsi pool has only one source device path */ + if (virAsprintf(&def->src->path, "%s/%s", + pooldef->source.devices[0].path, + tokens[3]) < 0) + goto cleanup; + + /* Storage pool have not supported these 2 attributes yet, + * use the defaults. + */ + def->src->hosts[0].transport = VIR_STORAGE_NET_HOST_TRANS_TCP; + def->src->hosts[0].socket = NULL; + + def->src->protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI; + + ret = 0; + + cleanup: + virStringFreeList(tokens); + return ret; +} + + +static int +virDomainTranslateDiskSourcePoolAuth(virDomainDiskDefPtr def, + virStoragePoolSourcePtr source) +{ + int ret = -1; + + /* Only necessary when authentication set */ + if (!source->auth) { + ret = 0; + goto cleanup; + } + def->src->auth = virStorageAuthDefCopy(source->auth); + if (!def->src->auth) + goto cleanup; + ret = 0; + + cleanup: + return ret; +} + + +int +virDomainTranslateDiskSourcePool(virConnectPtr conn, + virDomainDiskDefPtr def) +{ + virStoragePoolDefPtr pooldef = NULL; + virStoragePoolPtr pool = NULL; + virStorageVolPtr vol = NULL; + char *poolxml = NULL; + virStorageVolInfo info; + int ret = -1; + virErrorPtr savedError = NULL; + + if (def->src->type != VIR_STORAGE_TYPE_VOLUME) + return 0; + + if (!def->src->srcpool) + return 0; + + if (!(pool = virStoragePoolLookupByName(conn, def->src->srcpool->pool))) + return -1; + + if (virStoragePoolIsActive(pool) != 1) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("storage pool '%s' containing volume '%s' " + "is not active"), + def->src->srcpool->pool, def->src->srcpool->volume); + goto cleanup; + } + + if (!(vol = virStorageVolLookupByName(pool, def->src->srcpool->volume))) + goto cleanup; + + if (virStorageVolGetInfo(vol, &info) < 0) + goto cleanup; + + if (!(poolxml = virStoragePoolGetXMLDesc(pool, 0))) + goto cleanup; + + if (!(pooldef = virStoragePoolDefParseString(poolxml))) + goto cleanup; + + def->src->srcpool->pooltype = pooldef->type; + def->src->srcpool->voltype = info.type; + + if (def->src->srcpool->mode && pooldef->type != VIR_STORAGE_POOL_ISCSI) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("disk source mode is only valid when " + "storage pool is of iscsi type")); + goto cleanup; + } + + VIR_FREE(def->src->path); + virStorageNetHostDefFree(def->src->nhosts, def->src->hosts); + virStorageAuthDefFree(def->src->auth); + + switch ((virStoragePoolType) pooldef->type) { + case VIR_STORAGE_POOL_DIR: + case VIR_STORAGE_POOL_FS: + case VIR_STORAGE_POOL_NETFS: + case VIR_STORAGE_POOL_LOGICAL: + case VIR_STORAGE_POOL_DISK: + case VIR_STORAGE_POOL_SCSI: + case VIR_STORAGE_POOL_ZFS: + if (!(def->src->path = virStorageVolGetPath(vol))) + goto cleanup; + + if (def->startupPolicy && info.type != VIR_STORAGE_VOL_FILE) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("'startupPolicy' is only valid for " + "'file' type volume")); + goto cleanup; + } + + + switch (info.type) { + case VIR_STORAGE_VOL_FILE: + def->src->srcpool->actualtype = VIR_STORAGE_TYPE_FILE; + break; + + case VIR_STORAGE_VOL_DIR: + def->src->srcpool->actualtype = VIR_STORAGE_TYPE_DIR; + break; + + case VIR_STORAGE_VOL_BLOCK: + def->src->srcpool->actualtype = VIR_STORAGE_TYPE_BLOCK; + break; + + case VIR_STORAGE_VOL_NETWORK: + case VIR_STORAGE_VOL_NETDIR: + virReportError(VIR_ERR_INTERNAL_ERROR, + _("unexpected storage volume type '%s' " + "for storage pool type '%s'"), + virStorageVolTypeToString(info.type), + virStoragePoolTypeToString(pooldef->type)); + goto cleanup; + } + + break; + + case VIR_STORAGE_POOL_ISCSI: + if (def->startupPolicy) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("'startupPolicy' is only valid for " + "'file' type volume")); + goto cleanup; + } + + switch (def->src->srcpool->mode) { + case VIR_STORAGE_SOURCE_POOL_MODE_DEFAULT: + case VIR_STORAGE_SOURCE_POOL_MODE_LAST: + def->src->srcpool->mode = VIR_STORAGE_SOURCE_POOL_MODE_HOST; + /* fallthrough */ + case VIR_STORAGE_SOURCE_POOL_MODE_HOST: + def->src->srcpool->actualtype = VIR_STORAGE_TYPE_BLOCK; + if (!(def->src->path = virStorageVolGetPath(vol))) + goto cleanup; + break; + + case VIR_STORAGE_SOURCE_POOL_MODE_DIRECT: + def->src->srcpool->actualtype = VIR_STORAGE_TYPE_NETWORK; + def->src->protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI; + + if (virDomainTranslateDiskSourcePoolAuth(def, &pooldef->source) < 0) + goto cleanup; + + if (virDomainAddISCSIPoolSourceHost(def, pooldef) < 0) + goto cleanup; + break; + } + break; + + case VIR_STORAGE_POOL_MPATH: + case VIR_STORAGE_POOL_RBD: + case VIR_STORAGE_POOL_SHEEPDOG: + case VIR_STORAGE_POOL_GLUSTER: + case VIR_STORAGE_POOL_LAST: + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("using '%s' pools for backing 'volume' disks " + "isn't yet supported"), + virStoragePoolTypeToString(pooldef->type)); + goto cleanup; + } + + ret = 0; + cleanup: + if (ret < 0) + savedError = virSaveLastError(); + if (pool) + virStoragePoolFree(pool); + if (vol) + virStorageVolFree(vol); + if (savedError) { + virSetError(savedError); + virFreeError(savedError); + } + + VIR_FREE(poolxml); + virStoragePoolDefFree(pooldef); + return ret; +} + + char * virDomainObjGetMetadata(virDomainObjPtr vm, int type, diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index ff7d640..d745072 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2716,6 +2716,9 @@ int virDomainDefFindDevice(virDomainDefPtr def, bool virDomainDiskSourceIsBlockType(virDomainDiskDefPtr def) ATTRIBUTE_NONNULL(1); +int virDomainTranslateDiskSourcePool(virConnectPtr conn, + virDomainDiskDefPtr def); + void virDomainChrSourceDefClear(virDomainChrSourceDefPtr def); char *virDomainObjGetMetadata(virDomainObjPtr vm, diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 08111d4..975c414 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -407,6 +407,7 @@ virDomainTPMBackendTypeToString; virDomainTPMDefFree; virDomainTPMModelTypeFromString; virDomainTPMModelTypeToString; +virDomainTranslateDiskSourcePool; virDomainVcpuPinAdd; virDomainVcpuPinDefArrayFree; virDomainVcpuPinDefCopy; diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 238d2b1..eef5be1 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -1225,249 +1225,6 @@ int qemuDriverAllocateID(virQEMUDriverPtr driver) return virAtomicIntInc(&driver->nextvmid); } -static int -qemuAddISCSIPoolSourceHost(virDomainDiskDefPtr def, - virStoragePoolDefPtr pooldef) -{ - int ret = -1; - char **tokens = NULL; - - /* Only support one host */ - if (pooldef->source.nhost != 1) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", - _("Expected exactly 1 host for the storage pool")); - goto cleanup; - } - - /* iscsi pool only supports one host */ - def->src->nhosts = 1; - - if (VIR_ALLOC_N(def->src->hosts, def->src->nhosts) < 0) - goto cleanup; - - if (VIR_STRDUP(def->src->hosts[0].name, pooldef->source.hosts[0].name) < 0) - goto cleanup; - - if (virAsprintf(&def->src->hosts[0].port, "%d", - pooldef->source.hosts[0].port ? - pooldef->source.hosts[0].port : - 3260) < 0) - goto cleanup; - - /* iscsi volume has name like "unit:0:0:1" */ - if (!(tokens = virStringSplit(def->src->srcpool->volume, ":", 0))) - goto cleanup; - - if (virStringListLength(tokens) != 4) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("unexpected iscsi volume name '%s'"), - def->src->srcpool->volume); - goto cleanup; - } - - /* iscsi pool has only one source device path */ - if (virAsprintf(&def->src->path, "%s/%s", - pooldef->source.devices[0].path, - tokens[3]) < 0) - goto cleanup; - - /* Storage pool have not supported these 2 attributes yet, - * use the defaults. - */ - def->src->hosts[0].transport = VIR_STORAGE_NET_HOST_TRANS_TCP; - def->src->hosts[0].socket = NULL; - - def->src->protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI; - - ret = 0; - - cleanup: - virStringFreeList(tokens); - return ret; -} - -static int -qemuTranslateDiskSourcePoolAuth(virDomainDiskDefPtr def, - virStoragePoolSourcePtr source) -{ - int ret = -1; - - /* Only necessary when authentication set */ - if (!source->auth) { - ret = 0; - goto cleanup; - } - def->src->auth = virStorageAuthDefCopy(source->auth); - if (!def->src->auth) - goto cleanup; - ret = 0; - - cleanup: - return ret; -} - - -int -qemuTranslateDiskSourcePool(virConnectPtr conn, - virDomainDiskDefPtr def) -{ - virStoragePoolDefPtr pooldef = NULL; - virStoragePoolPtr pool = NULL; - virStorageVolPtr vol = NULL; - char *poolxml = NULL; - virStorageVolInfo info; - int ret = -1; - virErrorPtr savedError = NULL; - - if (def->src->type != VIR_STORAGE_TYPE_VOLUME) - return 0; - - if (!def->src->srcpool) - return 0; - - if (!(pool = virStoragePoolLookupByName(conn, def->src->srcpool->pool))) - return -1; - - if (virStoragePoolIsActive(pool) != 1) { - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("storage pool '%s' containing volume '%s' " - "is not active"), - def->src->srcpool->pool, def->src->srcpool->volume); - goto cleanup; - } - - if (!(vol = virStorageVolLookupByName(pool, def->src->srcpool->volume))) - goto cleanup; - - if (virStorageVolGetInfo(vol, &info) < 0) - goto cleanup; - - if (!(poolxml = virStoragePoolGetXMLDesc(pool, 0))) - goto cleanup; - - if (!(pooldef = virStoragePoolDefParseString(poolxml))) - goto cleanup; - - def->src->srcpool->pooltype = pooldef->type; - def->src->srcpool->voltype = info.type; - - if (def->src->srcpool->mode && pooldef->type != VIR_STORAGE_POOL_ISCSI) { - virReportError(VIR_ERR_XML_ERROR, "%s", - _("disk source mode is only valid when " - "storage pool is of iscsi type")); - goto cleanup; - } - - VIR_FREE(def->src->path); - virStorageNetHostDefFree(def->src->nhosts, def->src->hosts); - virStorageAuthDefFree(def->src->auth); - - switch ((virStoragePoolType) pooldef->type) { - case VIR_STORAGE_POOL_DIR: - case VIR_STORAGE_POOL_FS: - case VIR_STORAGE_POOL_NETFS: - case VIR_STORAGE_POOL_LOGICAL: - case VIR_STORAGE_POOL_DISK: - case VIR_STORAGE_POOL_SCSI: - case VIR_STORAGE_POOL_ZFS: - if (!(def->src->path = virStorageVolGetPath(vol))) - goto cleanup; - - if (def->startupPolicy && info.type != VIR_STORAGE_VOL_FILE) { - virReportError(VIR_ERR_XML_ERROR, "%s", - _("'startupPolicy' is only valid for " - "'file' type volume")); - goto cleanup; - } - - - switch (info.type) { - case VIR_STORAGE_VOL_FILE: - def->src->srcpool->actualtype = VIR_STORAGE_TYPE_FILE; - break; - - case VIR_STORAGE_VOL_DIR: - def->src->srcpool->actualtype = VIR_STORAGE_TYPE_DIR; - break; - - case VIR_STORAGE_VOL_BLOCK: - def->src->srcpool->actualtype = VIR_STORAGE_TYPE_BLOCK; - break; - - case VIR_STORAGE_VOL_NETWORK: - case VIR_STORAGE_VOL_NETDIR: - virReportError(VIR_ERR_INTERNAL_ERROR, - _("unexpected storage volume type '%s' " - "for storage pool type '%s'"), - virStorageVolTypeToString(info.type), - virStoragePoolTypeToString(pooldef->type)); - goto cleanup; - } - - break; - - case VIR_STORAGE_POOL_ISCSI: - if (def->startupPolicy) { - virReportError(VIR_ERR_XML_ERROR, "%s", - _("'startupPolicy' is only valid for " - "'file' type volume")); - goto cleanup; - } - - switch (def->src->srcpool->mode) { - case VIR_STORAGE_SOURCE_POOL_MODE_DEFAULT: - case VIR_STORAGE_SOURCE_POOL_MODE_LAST: - def->src->srcpool->mode = VIR_STORAGE_SOURCE_POOL_MODE_HOST; - /* fallthrough */ - case VIR_STORAGE_SOURCE_POOL_MODE_HOST: - def->src->srcpool->actualtype = VIR_STORAGE_TYPE_BLOCK; - if (!(def->src->path = virStorageVolGetPath(vol))) - goto cleanup; - break; - - case VIR_STORAGE_SOURCE_POOL_MODE_DIRECT: - def->src->srcpool->actualtype = VIR_STORAGE_TYPE_NETWORK; - def->src->protocol = VIR_STORAGE_NET_PROTOCOL_ISCSI; - - if (qemuTranslateDiskSourcePoolAuth(def, &pooldef->source) < 0) - goto cleanup; - - if (qemuAddISCSIPoolSourceHost(def, pooldef) < 0) - goto cleanup; - break; - } - break; - - case VIR_STORAGE_POOL_MPATH: - case VIR_STORAGE_POOL_RBD: - case VIR_STORAGE_POOL_SHEEPDOG: - case VIR_STORAGE_POOL_GLUSTER: - case VIR_STORAGE_POOL_LAST: - virReportError(VIR_ERR_CONFIG_UNSUPPORTED, - _("using '%s' pools for backing 'volume' disks " - "isn't yet supported"), - virStoragePoolTypeToString(pooldef->type)); - goto cleanup; - } - - ret = 0; - cleanup: - if (ret < 0) - savedError = virSaveLastError(); - if (pool) - virStoragePoolFree(pool); - if (vol) - virStorageVolFree(vol); - if (savedError) { - virSetError(savedError); - virFreeError(savedError); - } - - VIR_FREE(poolxml); - virStoragePoolDefFree(pooldef); - return ret; -} - int qemuTranslateSnapshotDiskSourcePool(virConnectPtr conn ATTRIBUTE_UNUSED, diff --git a/src/qemu/qemu_conf.h b/src/qemu/qemu_conf.h index 90aebef..3276412 100644 --- a/src/qemu/qemu_conf.h +++ b/src/qemu/qemu_conf.h @@ -307,9 +307,6 @@ int qemuSetUnprivSGIO(virDomainDeviceDefPtr dev); int qemuDriverAllocateID(virQEMUDriverPtr driver); virDomainXMLOptionPtr virQEMUDriverCreateXMLConf(virQEMUDriverPtr driver); -int qemuTranslateDiskSourcePool(virConnectPtr conn, - virDomainDiskDefPtr def); - int qemuTranslateSnapshotDiskSourcePool(virConnectPtr conn, virDomainSnapshotDiskDefPtr def); diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index ac0717c..e0411b1 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -6635,7 +6635,7 @@ qemuDomainChangeDiskMediaLive(virConnectPtr conn, virCapsPtr caps = NULL; int ret = -1; - if (qemuTranslateDiskSourcePool(conn, disk) < 0) + if (virDomainTranslateDiskSourcePool(conn, disk) < 0) goto end; if (qemuDomainDetermineDiskChain(driver, vm, disk, false) < 0) @@ -12581,7 +12581,7 @@ qemuDomainSnapshotPrepareDiskExternal(virConnectPtr conn, return -1; if (!active) { - if (qemuTranslateDiskSourcePool(conn, disk) < 0) + if (virDomainTranslateDiskSourcePool(conn, disk) < 0) return -1; if (qemuDomainSnapshotPrepareDiskExternalBackingInactive(disk) < 0) @@ -12639,7 +12639,7 @@ qemuDomainSnapshotPrepareDiskInternal(virConnectPtr conn, if (active) return 0; - if (qemuTranslateDiskSourcePool(conn, disk) < 0) + if (virDomainTranslateDiskSourcePool(conn, disk) < 0) return -1; actualType = virStorageSourceGetActualType(disk->src); diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index f7e223a..1d54de6 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -722,7 +722,7 @@ qemuDomainAttachDeviceDiskLive(virConnectPtr conn, goto end; } - if (qemuTranslateDiskSourcePool(conn, disk) < 0) + if (virDomainTranslateDiskSourcePool(conn, disk) < 0) goto end; if (qemuAddSharedDevice(driver, dev, vm->def->name) < 0) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 13c396f..4ceb54e 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -3321,7 +3321,7 @@ qemuProcessReconnect(void *opaque) for (i = 0; i < obj->def->ndisks; i++) { virDomainDeviceDef dev; - if (qemuTranslateDiskSourcePool(conn, obj->def->disks[i]) < 0) + if (virDomainTranslateDiskSourcePool(conn, obj->def->disks[i]) < 0) goto error; /* XXX we should be able to restore all data from XML in the future */ @@ -4000,7 +4000,7 @@ int qemuProcessStart(virConnectPtr conn, * cgroup and security setting. */ for (i = 0; i < vm->def->ndisks; i++) { - if (qemuTranslateDiskSourcePool(conn, vm->def->disks[i]) < 0) + if (virDomainTranslateDiskSourcePool(conn, vm->def->disks[i]) < 0) goto cleanup; } diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 62b969c..7c3eb7c 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -351,7 +351,7 @@ static int testCompareXMLToArgvFiles(const char *xml, } for (i = 0; i < vmdef->ndisks; i++) { - if (qemuTranslateDiskSourcePool(conn, vmdef->disks[i]) < 0) + if (virDomainTranslateDiskSourcePool(conn, vmdef->disks[i]) < 0) goto out; } -- 1.9.0

3 4

[libvirt] [PATCH] daemon: Fix driver registration ordering
by Michal Privoznik 15 Aug '14

15 Aug '14

There are some stateless drivers which implement subdrivers (typically vbox and its own network and storage subdrivers). However, as of ba5f3c7c8ecc10 the vbox driver lives in the daemon, not the client library. This means, in order for vbox (or any stateless domain driver) to use its subdrivers, it must register before the general drivers. Later, when the virConnectOpen function goes through the subdrivers, stateless drivers are searched first. If the connection request is aiming at stateless driver, it will be opened. Otherwise the generic subdriver is opened. The other change done in this commit is moving interface module load a bit earlier to match the ordering in case libvirt is built without driver modules. Reported-by: Taowei Luo <uaedante(a)gmail.com> Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- daemon/libvirtd.c | 31 ++++++++++++++++++------------- 1 file changed, 18 insertions(+), 13 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index a1f64ad..69baef6 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -365,10 +365,15 @@ static void daemonInitialize(void) { /* * Note that the order is important: the first ones have a higher - * priority when calling virStateInitialize. We must register - * the network, storage and nodedev drivers before any domain - * drivers, since their resources must be auto-started before - * any domains can be auto-started. + * priority when calling virStateInitialize. We must register the + * network, storage and nodedev drivers before any stateless + * domain drivers, since their resources must be auto-started + * before any domains can be auto-started. Moreover, some + * stateless drivers implement their own subdrivers (e.g. the vbox + * driver has its own network and storage subdriers) which need to + * have higher priority. Otherwise, when connecting the such + * driver generic subdriver may be opened instead of the one + * corresponding to the stateless driver. */ #ifdef WITH_DRIVER_MODULES /* We don't care if any of these fail, because the whole point @@ -376,9 +381,15 @@ static void daemonInitialize(void) * If they try to open a connection for a module that * is not loaded they'll get a suitable error at that point */ +# ifdef WITH_VBOX + virDriverLoadModule("vbox"); +# endif # ifdef WITH_NETWORK virDriverLoadModule("network"); # endif +# ifdef WITH_INTERFACE + virDriverLoadModule("interface"); +# endif # ifdef WITH_STORAGE virDriverLoadModule("storage"); # endif @@ -391,9 +402,6 @@ static void daemonInitialize(void) # ifdef WITH_NWFILTER virDriverLoadModule("nwfilter"); # endif -# ifdef WITH_INTERFACE - virDriverLoadModule("interface"); -# endif # ifdef WITH_XEN virDriverLoadModule("xen"); # endif @@ -409,13 +417,13 @@ static void daemonInitialize(void) # ifdef WITH_UML virDriverLoadModule("uml"); # endif -# ifdef WITH_VBOX - virDriverLoadModule("vbox"); -# endif # ifdef WITH_BHYVE virDriverLoadModule("bhyve"); # endif #else +# ifdef WITH_VBOX + vboxRegister(); +# endif # ifdef WITH_NETWORK networkRegister(); # endif @@ -449,9 +457,6 @@ static void daemonInitialize(void) # ifdef WITH_UML umlRegister(); # endif -# ifdef WITH_VBOX - vboxRegister(); -# endif # ifdef WITH_BHYVE bhyveRegister(); # endif -- 1.8.5.5

2 1

[libvirt] [PATCHv2] qemu: Redundant listen address entry in quest xml
by Erik Skultety 15 Aug '14

15 Aug '14

When editing guest's XML (on QEMU), it was possible to add multiple listen elements into graphics parent element. However QEMU does not support listening on multiple addresses. Configuration is tested for multiple 'listen address' and if positive, an error is raised. --- src/qemu/qemu_process.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 9e6a9ae..1810e6c 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -3934,6 +3934,14 @@ int qemuProcessStart(virConnectPtr conn, } graphics->listens[0].fromConfig = true; } + /* multiple listen addresses are unsupported configuration in qemu + */ + else if (graphics->nListens > 1) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("QEMU does not support multiple listen " + "addresses for a domain.")); + goto cleanup; + } } } -- 1.9.3

4 3

[libvirt] [PATCH] Error out on missing address in 'server' type interface
by Ján Tomko 15 Aug '14

15 Aug '14

It was possible to add the following interface: <interface type='server'> <source port='5558'/> </interface> Resulting in: error: internal error Process exited while reading console log output: char device redirected to /dev/pts/4 2014-08-15T05:59:17.348271Z qemu-kvm: -netdev socket,listen=(null):5558,id=hostnet0: Device 'socket' could not be initialized We already do this check for NET_TYPE_CLIENT and NET_TYPE_MCAST, do it also for NET_TYPE_SERVER. https://bugzilla.redhat.com/show_bug.cgi?id=1130390 --- src/conf/domain_conf.c | 11 ++++------- 1 file changed, 4 insertions(+), 7 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 5c762fa..7ea628c 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -7118,13 +7118,10 @@ virDomainNetDefParseXML(virDomainXMLOptionPtr xmlopt, } if (address == NULL) { - if (def->type == VIR_DOMAIN_NET_TYPE_CLIENT || - def->type == VIR_DOMAIN_NET_TYPE_MCAST) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("No <source> 'address' attribute " - "specified with socket interface")); - goto error; - } + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("No <source> 'address' attribute " + "specified with socket interface")); + goto error; } else { def->data.socket.address = address; address = NULL; -- 1.8.5.5

3 2

[libvirt] [PATCH] network: fix crash when starting a network with no <pf> element
by Laine Stump 15 Aug '14

15 Aug '14

Martin Kletzander pointed out in email that my commit 2a193f64 introduced a crash in networkCreateInterfacePool() during startup of any network that doesn't have a <pf> subelement of its <forward> element. He also supplied a patch. http://www.redhat.com/archives/libvir-list/2014-August/msg00655.html I expanded on that patch by cleaning uyp now-extraneous checks in the callers of networkCreateInterfacePool(). Fortunately the offending patch hasn't been in any release, and hasn't been (to my knowledge) backported to any other branch. --- src/network/bridge_driver.c | 17 +++++++---------- 1 file changed, 7 insertions(+), 10 deletions(-) diff --git a/src/network/bridge_driver.c b/src/network/bridge_driver.c index 1ba4c3d..fc4c73d 100644 --- a/src/network/bridge_driver.c +++ b/src/network/bridge_driver.c @@ -2196,6 +2196,9 @@ networkCreateInterfacePool(virNetworkDefPtr netdef) int ret = -1; size_t i; + if (!netdef->forward.npfs || netdef->forward.nifs > 0) + return 0; + if ((virNetDevGetVirtualFunctions(netdef->forward.pfs->dev, &vfNames, &virtFns, &numVirtFns)) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, @@ -2204,7 +2207,6 @@ networkCreateInterfacePool(virNetworkDefPtr netdef) goto cleanup; } - netdef->forward.nifs = 0; if (VIR_ALLOC_N(netdef->forward.ifs, numVirtFns) < 0) goto cleanup; @@ -3843,10 +3845,8 @@ networkAllocateActualDevice(virDomainDefPtr dom, virDomainHostdevSubsysPCIBackendType backend; iface->data.network.actual->type = actualType = VIR_DOMAIN_NET_TYPE_HOSTDEV; - if (netdef->forward.npfs > 0 && netdef->forward.nifs <= 0 && - networkCreateInterfacePool(netdef) < 0) { + if (networkCreateInterfacePool(netdef) < 0) goto error; - } /* pick first dev with 0 connections */ for (i = 0; i < netdef->forward.nifs; i++) { @@ -3978,10 +3978,8 @@ networkAllocateActualDevice(virDomainDefPtr dom, } else { /* pick an interface from the pool */ - if (netdef->forward.npfs > 0 && netdef->forward.nifs == 0 && - networkCreateInterfacePool(netdef) < 0) { + if (networkCreateInterfacePool(netdef) < 0) goto error; - } /* PASSTHROUGH mode, and PRIVATE Mode + 802.1Qbh both * require exclusive access to a device, so current @@ -4149,10 +4147,9 @@ networkNotifyActualDevice(virDomainDefPtr dom, goto success; } - if (netdef->forward.npfs > 0 && netdef->forward.nifs == 0 && - networkCreateInterfacePool(netdef) < 0) { + if (networkCreateInterfacePool(netdef) < 0) goto error; - } + if (netdef->forward.nifs == 0) { virReportError(VIR_ERR_INTERNAL_ERROR, _("network '%s' uses a direct or hostdev mode, " -- 1.9.3

2 3

[libvirt] [PATCH v2 1/1] qemu: Tidy up job handling during live migration
by Sam Bobroff 15 Aug '14

15 Aug '14

During a QEMU live migration several warning messages about job handling could be written to syslog on the destination host: "entering monitor without asking for a nested job is dangerous" The messages are written because the job handling during migration uses hard coded asyncJob values in several places that are incorrect. This patch passes the required asyncJob value around and prevents the warnings as well as any issues that the warnings may be referring to. Signed-off-by: Sam Bobroff <sam.bobroff(a)au1.ibm.com> --- v2: * Handle failures from qemuDomainObjEnterMonitorAsync() rather than ignoring them. * Include qemuDomainChangeGraphicsPasswords(). src/qemu/qemu_domain.c | 6 ++++-- src/qemu/qemu_domain.h | 2 +- src/qemu/qemu_driver.c | 21 ++++++++++++--------- src/qemu/qemu_migration.c | 3 ++- src/qemu/qemu_process.c | 46 ++++++++++++++++++++++++++++------------------ src/qemu/qemu_process.h | 1 + 6 files changed, 48 insertions(+), 31 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 4f63c88..59b2647 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -2497,7 +2497,8 @@ qemuDomainDetermineDiskChain(virQEMUDriverPtr driver, int qemuDomainUpdateDeviceList(virQEMUDriverPtr driver, - virDomainObjPtr vm) + virDomainObjPtr vm, + int asyncJob) { qemuDomainObjPrivatePtr priv = vm->privateData; char **aliases; @@ -2505,7 +2506,8 @@ qemuDomainUpdateDeviceList(virQEMUDriverPtr driver, if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_DEL_EVENT)) return 0; - qemuDomainObjEnterMonitor(driver, vm); + if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) + return -1; if (qemuMonitorGetDeviceAliases(priv->mon, &aliases) < 0) { qemuDomainObjExitMonitor(driver, vm); return -1; diff --git a/src/qemu/qemu_domain.h b/src/qemu/qemu_domain.h index 67972b9..8736889 100644 --- a/src/qemu/qemu_domain.h +++ b/src/qemu/qemu_domain.h @@ -369,7 +369,7 @@ extern virDomainXMLNamespace virQEMUDriverDomainXMLNamespace; extern virDomainDefParserConfig virQEMUDriverDomainDefParserConfig; int qemuDomainUpdateDeviceList(virQEMUDriverPtr driver, - virDomainObjPtr vm); + virDomainObjPtr vm, int asyncJob); bool qemuDomainDefCheckABIStability(virQEMUDriverPtr driver, virDomainDefPtr src, diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 33541d3..b0439d2 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -1616,7 +1616,8 @@ static virDomainPtr qemuDomainCreateXML(virConnectPtr conn, goto cleanup; } - if (qemuProcessStart(conn, driver, vm, NULL, -1, NULL, NULL, + if (qemuProcessStart(conn, driver, vm, QEMU_ASYNC_JOB_NONE, + NULL, -1, NULL, NULL, VIR_NETDEV_VPORT_PROFILE_OP_CREATE, start_flags) < 0) { virDomainAuditStart(vm, "booted", false); @@ -5446,7 +5447,8 @@ qemuDomainSaveImageStartVM(virConnectPtr conn, } /* Set the migration source and start it up. */ - ret = qemuProcessStart(conn, driver, vm, "stdio", *fd, path, NULL, + ret = qemuProcessStart(conn, driver, vm, QEMU_ASYNC_JOB_NONE, + "stdio", *fd, path, NULL, VIR_NETDEV_VPORT_PROFILE_OP_RESTORE, VIR_QEMU_PROCESS_START_PAUSED); @@ -6143,7 +6145,8 @@ qemuDomainObjStart(virConnectPtr conn, } } - ret = qemuProcessStart(conn, driver, vm, NULL, -1, NULL, NULL, + ret = qemuProcessStart(conn, driver, vm, QEMU_ASYNC_JOB_NONE, + NULL, -1, NULL, NULL, VIR_NETDEV_VPORT_PROFILE_OP_CREATE, start_flags); virDomainAuditStart(vm, "booted", ret >= 0); if (ret >= 0) { @@ -6500,7 +6503,7 @@ qemuDomainAttachDeviceLive(virDomainObjPtr vm, } if (ret == 0) - qemuDomainUpdateDeviceList(driver, vm); + qemuDomainUpdateDeviceList(driver, vm, QEMU_ASYNC_JOB_NONE); return ret; } @@ -6560,7 +6563,7 @@ qemuDomainDetachDeviceLive(virDomainObjPtr vm, } if (ret == 0) - qemuDomainUpdateDeviceList(driver, vm); + qemuDomainUpdateDeviceList(driver, vm, QEMU_ASYNC_JOB_NONE); return ret; } @@ -14101,8 +14104,8 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, if (config) virDomainObjAssignDef(vm, config, false, NULL); - rc = qemuProcessStart(snapshot->domain->conn, - driver, vm, NULL, -1, NULL, snap, + rc = qemuProcessStart(snapshot->domain->conn, driver, vm, + QEMU_ASYNC_JOB_NONE, NULL, -1, NULL, snap, VIR_NETDEV_VPORT_PROFILE_OP_CREATE, VIR_QEMU_PROCESS_START_PAUSED); virDomainAuditStart(vm, "from-snapshot", rc >= 0); @@ -14195,8 +14198,8 @@ static int qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, if (event) qemuDomainEventQueue(driver, event); - rc = qemuProcessStart(snapshot->domain->conn, - driver, vm, NULL, -1, NULL, NULL, + rc = qemuProcessStart(snapshot->domain->conn, driver, vm, + QEMU_ASYNC_JOB_NONE, NULL, -1, NULL, NULL, VIR_NETDEV_VPORT_PROFILE_OP_CREATE, start_flags); virDomainAuditStart(vm, "from-snapshot", rc >= 0); diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 767d840..1c46b34 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -2480,7 +2480,8 @@ qemuMigrationPrepareAny(virQEMUDriverPtr driver, /* Start the QEMU daemon, with the same command-line arguments plus * -incoming $migrateFrom */ - if (qemuProcessStart(dconn, driver, vm, migrateFrom, dataFD[0], NULL, NULL, + if (qemuProcessStart(dconn, driver, vm, QEMU_ASYNC_JOB_MIGRATION_IN, + migrateFrom, dataFD[0], NULL, NULL, VIR_NETDEV_VPORT_PROFILE_OP_MIGRATE_IN_START, VIR_QEMU_PROCESS_START_PAUSED | VIR_QEMU_PROCESS_START_AUTODESTROY) < 0) { diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 8a6b384..690927e 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -1444,7 +1444,8 @@ static qemuMonitorCallbacks monitorCallbacks = { }; static int -qemuConnectMonitor(virQEMUDriverPtr driver, virDomainObjPtr vm, int logfd) +qemuConnectMonitor(virQEMUDriverPtr driver, virDomainObjPtr vm, int asyncJob, + int logfd) { qemuDomainObjPrivatePtr priv = vm->privateData; int ret = -1; @@ -1495,7 +1496,8 @@ qemuConnectMonitor(virQEMUDriverPtr driver, virDomainObjPtr vm, int logfd) } - qemuDomainObjEnterMonitor(driver, vm); + if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) + goto error; ret = qemuMonitorSetCapabilities(priv->mon); if (ret == 0 && virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_MONITOR_JSON)) @@ -1901,6 +1903,7 @@ qemuProcessFindCharDevicePTYs(virDomainObjPtr vm, static int qemuProcessWaitForMonitor(virQEMUDriverPtr driver, virDomainObjPtr vm, + int asyncJob, virQEMUCapsPtr qemuCaps, off_t pos) { @@ -1926,7 +1929,7 @@ qemuProcessWaitForMonitor(virQEMUDriverPtr driver, } VIR_DEBUG("Connect monitor to %p '%s'", vm, vm->def->name); - if (qemuConnectMonitor(driver, vm, logfd) < 0) + if (qemuConnectMonitor(driver, vm, asyncJob, logfd) < 0) goto cleanup; /* Try to get the pty path mappings again via the monitor. This is much more @@ -1938,7 +1941,8 @@ qemuProcessWaitForMonitor(virQEMUDriverPtr driver, goto cleanup; priv = vm->privateData; - qemuDomainObjEnterMonitor(driver, vm); + if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) + goto cleanup; ret = qemuMonitorGetPtyPaths(priv->mon, paths); qemuDomainObjExitMonitor(driver, vm); @@ -1984,13 +1988,14 @@ qemuProcessWaitForMonitor(virQEMUDriverPtr driver, static int qemuProcessDetectVcpuPIDs(virQEMUDriverPtr driver, - virDomainObjPtr vm) + virDomainObjPtr vm, int asyncJob) { pid_t *cpupids = NULL; int ncpupids; qemuDomainObjPrivatePtr priv = vm->privateData; - qemuDomainObjEnterMonitor(driver, vm); + if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) + return -1; /* failure to get the VCPU<-> PID mapping or to execute the query * command will not be treated fatal as some versions of qemu don't * support this command */ @@ -2213,7 +2218,8 @@ qemuProcessSetEmulatorAffinities(virConnectPtr conn ATTRIBUTE_UNUSED, static int qemuProcessInitPasswords(virConnectPtr conn, virQEMUDriverPtr driver, - virDomainObjPtr vm) + virDomainObjPtr vm, + int asyncJob) { int ret = 0; qemuDomainObjPrivatePtr priv = vm->privateData; @@ -2254,7 +2260,8 @@ qemuProcessInitPasswords(virConnectPtr conn, goto cleanup; alias = vm->def->disks[i]->info.alias; - qemuDomainObjEnterMonitor(driver, vm); + if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) + goto cleanup; ret = qemuMonitorSetDrivePassphrase(priv->mon, alias, secret); VIR_FREE(secret); qemuDomainObjExitMonitor(driver, vm); @@ -3150,7 +3157,7 @@ qemuProcessUpdateDevices(virQEMUDriverPtr driver, old = priv->qemuDevices; priv->qemuDevices = NULL; - if (qemuDomainUpdateDeviceList(driver, vm) < 0) + if (qemuDomainUpdateDeviceList(driver, vm, QEMU_ASYNC_JOB_NONE) < 0) goto cleanup; if ((tmp = old)) { @@ -3216,7 +3223,7 @@ qemuProcessReconnect(void *opaque) virObjectRef(obj); /* XXX check PID liveliness & EXE path */ - if (qemuConnectMonitor(driver, obj, -1) < 0) + if (qemuConnectMonitor(driver, obj, QEMU_ASYNC_JOB_NONE, -1) < 0) goto error; /* Failure to connect to agent shouldn't be fatal */ @@ -3655,6 +3662,7 @@ qemuProcessVerifyGuestCPU(virQEMUDriverPtr driver, virDomainObjPtr vm) int qemuProcessStart(virConnectPtr conn, virQEMUDriverPtr driver, virDomainObjPtr vm, + int asyncJob, const char *migrateFrom, int stdin_fd, const char *stdin_path, @@ -4137,7 +4145,7 @@ int qemuProcessStart(virConnectPtr conn, goto cleanup; VIR_DEBUG("Waiting for monitor to show up"); - if (qemuProcessWaitForMonitor(driver, vm, priv->qemuCaps, pos) < 0) + if (qemuProcessWaitForMonitor(driver, vm, asyncJob, priv->qemuCaps, pos) < 0) goto cleanup; /* Failure to connect to agent shouldn't be fatal */ @@ -4160,7 +4168,7 @@ int qemuProcessStart(virConnectPtr conn, goto cleanup; VIR_DEBUG("Detecting VCPU PIDs"); - if (qemuProcessDetectVcpuPIDs(driver, vm) < 0) + if (qemuProcessDetectVcpuPIDs(driver, vm, asyncJob) < 0) goto cleanup; VIR_DEBUG("Setting cgroup for each VCPU (if required)"); @@ -4180,7 +4188,7 @@ int qemuProcessStart(virConnectPtr conn, goto cleanup; VIR_DEBUG("Setting any required VM passwords"); - if (qemuProcessInitPasswords(conn, driver, vm) < 0) + if (qemuProcessInitPasswords(conn, driver, vm, asyncJob) < 0) goto cleanup; /* If we have -device, then addresses are assigned explicitly. @@ -4195,7 +4203,8 @@ int qemuProcessStart(virConnectPtr conn, /* qemu doesn't support setting this on the command line, so * enter the monitor */ VIR_DEBUG("Setting network link states"); - qemuDomainObjEnterMonitor(driver, vm); + if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) + goto cleanup; if (qemuProcessSetLinkStates(vm) < 0) { qemuDomainObjExitMonitor(driver, vm); goto cleanup; @@ -4204,7 +4213,7 @@ int qemuProcessStart(virConnectPtr conn, qemuDomainObjExitMonitor(driver, vm); VIR_DEBUG("Fetching list of active devices"); - if (qemuDomainUpdateDeviceList(driver, vm) < 0) + if (qemuDomainUpdateDeviceList(driver, vm, asyncJob) < 0) goto cleanup; /* Technically, qemuProcessStart can be called from inside @@ -4219,7 +4228,8 @@ int qemuProcessStart(virConnectPtr conn, vm->def->mem.cur_balloon); goto cleanup; } - qemuDomainObjEnterMonitor(driver, vm); + if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) + goto cleanup; if (vm->def->memballoon && vm->def->memballoon->period) qemuMonitorSetMemoryStatsPeriod(priv->mon, vm->def->memballoon->period); if (qemuMonitorSetBalloon(priv->mon, cur_balloon) < 0) { @@ -4764,7 +4774,7 @@ int qemuProcessAttach(virConnectPtr conn ATTRIBUTE_UNUSED, vm->pid = pid; VIR_DEBUG("Waiting for monitor to show up"); - if (qemuProcessWaitForMonitor(driver, vm, priv->qemuCaps, -1) < 0) + if (qemuProcessWaitForMonitor(driver, vm, QEMU_ASYNC_JOB_NONE, priv->qemuCaps, -1) < 0) goto error; /* Failure to connect to agent shouldn't be fatal */ @@ -4779,7 +4789,7 @@ int qemuProcessAttach(virConnectPtr conn ATTRIBUTE_UNUSED, } VIR_DEBUG("Detecting VCPU PIDs"); - if (qemuProcessDetectVcpuPIDs(driver, vm) < 0) + if (qemuProcessDetectVcpuPIDs(driver, vm, QEMU_ASYNC_JOB_NONE) < 0) goto error; /* If we have -device, then addresses are assigned explicitly. diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h index 9c78736..5948ea4 100644 --- a/src/qemu/qemu_process.h +++ b/src/qemu/qemu_process.h @@ -53,6 +53,7 @@ typedef enum { int qemuProcessStart(virConnectPtr conn, virQEMUDriverPtr driver, virDomainObjPtr vm, + int asyncJob, const char *migrateFrom, int stdin_fd, const char *stdin_path, -- 2.0.2.731.g247b4d5

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[libvirt] [PATCH v2 0/2] bhyve: add volumes support
by Roman Bogorodskiy 15 Aug '14

15 Aug '14

Changes from v1: - Add volume support for the bhyveload command as well to allow booting from a volume Roman Bogorodskiy (2): conf: make disk source pool translation generic bhyve: add volumes support src/bhyve/bhyve_command.c | 16 ++- src/bhyve/bhyve_command.h | 7 +- src/bhyve/bhyve_driver.c | 4 +- src/bhyve/bhyve_process.c | 4 +- src/conf/domain_conf.c | 245 ++++++++++++++++++++++++++++++++++++++++++++++ src/conf/domain_conf.h | 3 + src/libvirt_private.syms | 1 + src/qemu/qemu_conf.c | 243 --------------------------------------------- src/qemu/qemu_conf.h | 3 - src/qemu/qemu_driver.c | 6 +- src/qemu/qemu_hotplug.c | 2 +- src/qemu/qemu_process.c | 4 +- tests/bhyvexml2argvtest.c | 5 +- tests/qemuxml2argvtest.c | 2 +- 14 files changed, 280 insertions(+), 265 deletions(-) -- 1.9.0

1 2

[libvirt] [PATCH 00/66] vbox: Rewrite vbox domain driver
by Taowei 15 Aug '14

15 Aug '14

This series of patches rewrite the vbox's domain driver. The driver is separated into two parts: the version specified and the common part. The common driver use vboxUniformedAPI to build a general driver for all vbox versions. The vboxUniformedAPI take the responsiblity to communicate with virtualbox. Since there are some incompatible changes in virtualbox, vboxUniformedAPI should be aware of these changes and provide a uniformed api for the upper layer. The significant result of this patch is that we replace all vir${vbox_version}Driver into one virCommonDriver. So, we will have only one vbox driver implementation for all vbox versions in libvirt. PS: I have send part of my patches before: https://www.redhat.com/archives/libvir-list/2014-July/msg00937.html But I have to resend it beacuse I did some improvement on previous patches: *Remove the test case for vboxUniformedAPI, because it would raise "break strict-aliasing rules" warning in some distibutions *Merged the flag fdWatchNeedInitialize into domainEventCallbacks, So, we use one flag to indicate whether vbox support callbacks as well as we need to initialize variables for it. Taowei (66): vbox: Begin to rewrite, vboxConnectOpen vbox: Rewrite vboxConnectClose vbox: Rewrite vboxDomainSave vbox: Rewrite vboxConnectGetVersion vbox: Rewrite vboxConnectGetHostname vbox: Rewrite vboxConnectIsSecure vbox: Rewrite vboxConnectIsEncrypted vbox: Rewrite vboxConnectIsAlive vbox: Rewrite vboxConnectGetMaxVcpus vbox: Rewrite vboxConnectGetCapabilities vbox: Rewrite vboxConnectListDomains vbox: Rewrite vboxConnectNumOfDomains vbox: Rewrite vboxDomainLookupById vbox: Rewrite vboxDomainLookupByUUID vbox: Rewrite vboxDomainUndefineFlags vbox: Rewrite vboxDomainDefineXML vbox: Rewrite vboxDomainCreateWithFlags vbox: Rewrite vboxDomainCreate vbox: Rewrite vboxDomainCreateXML vbox: Rewrite vboxDomainLookupByName vbox: Rewrite vboxDomainIsActive vbox: Rewrite vboxDomainIsPersistent vbox: Rewrite vboxDomainIsUpdated vbox: Rewrite vboxDomainSuspend vbox: Rewrite vboxDomainResume vbox: Rewrite vboxDomainShutdownFlags vbox: Rewrite vboxDomainShutdown vbox: Rewrite vboxDomainReboot vbox: Rewrite vboxDomainDestroyFlags vbox: Rewrite vboxDomainDestroy vbox: Rewrite vboxDomainGetOSType vbox: Rewrite vboxDomainSetMemory vbox: Rewrite vboxDomainGetInfo vbox: Rewrite vboxDomainGetState vbox: Rewrite vboxDomainSetVcpusFlags vbox: Rewrite vboxDomainSetVcpus vbox: Rewrite vboxDomainGetVcpusFlags vbox: Rewrite vboxDomainGetMaxVcpus vbox: Add API for vboxDomainGetXMLDesc vbox: Rewrite vboxDomainGetXMLDesc vbox: Rewrite vboxConnectListDefinedDomains vbox: Rewrite vboxConnectNumOfDefinedDomains vbox: Rewrite vboxDomainUndefine vbox: Rewrite vboxDomainAttachDevice vbox: Rewrite vboxDomainAttachDeviceFlags vbox: Rewrite vboxDomainUpdateDeviceFlags vbox: Rewrite vboxDomainDetachDevice vbox: Rewrite vboxDomainDetachDeviceFlags vbox: Add API for vboxDomainSnapshotCreateXML vbox: Rewrite vboxDomainSnapshotCreateXML vbox: Rewrite vboxDomainSnapshotGetXMLDesc vbox: Rewrite vboxDomainSnapshotNum vbox: Rewrite vboxDomainSnapshotListNames vbox: Rewrite vboxSnapshotLookupByName vbox: Rewrite vboxDomainHasCurrentSnapshot vbox: Rewrite vboxDomainSnapshotGetParent vbox: Rewrite vboxDomainSnapshotCurrent vbox: Rewrite vboxDomainSnapshotIsCurrent vbox: Rewrite vboxDomainSnapshotHasMetadata vbox: Rewrite vboxDomainRevertToSnapshot vbox: Rewrite vboxDomainSnapshotDelete vbox: Rewrite vboxDomainScreenshot vbox: Rewrite vboxConnectListAllDomains vbox: Rewrite vboxNode functions vbox: Add registerDomainEvent vbox: Introducing vboxCommonDriver po/POTFILES.in | 1 + src/Makefile.am | 5 +- src/vbox/README | 7 +- src/vbox/vbox_common.c | 7550 +++++++++++++++++++++ src/vbox/vbox_common.h | 306 + src/vbox/vbox_driver.c | 40 +- src/vbox/vbox_install_api.h | 26 + src/vbox/vbox_tmpl.c |14557 +++++++++++++---------------------------- src/vbox/vbox_uniformed_api.h | 551 ++ 9 files changed, 13186 insertions(+), 9857 deletions(-) create mode 100644 src/vbox/vbox_common.c create mode 100644 src/vbox/vbox_common.h create mode 100644 src/vbox/vbox_install_api.h create mode 100644 src/vbox/vbox_uniformed_api.h -- 1.7.9.5

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