March 2015 - Devel - libvirt List Archives

[libvirt] [PATCH v2] doc: Fix doc for backingStore
by Deepak Shetty 19 Mar '15

19 Mar '15

I spent quite some time figuring that backingStore info isn't included in the dom xml, unless guest is up and running. Hopefully putting that in the doc should help. This patch adds that info to the doc. Signed-off-by: Deepak C Shetty <deepakcs(a)redhat.com> --- docs/formatdomain.html.in | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index ab51982..a41c2c6 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -2113,7 +2113,12 @@ and only used for output to describe the detected backing chains. <span class="since">Since 1.2.4</span>. An empty <code>backingStore</code> element means the sibling source is - self-contained and is not based on any backing store. The following + self-contained and is not based on any backing store. Note that + <code>backingStore</code> info is included in the output only when + the guest is up and running, otherwise it's not included. For accurate + <code>backingStore</code> info, when using external snapshot with the + destination of a existing file, the snapshot must be created with + backing file format specified in the metadata. The following attributes and sub-elements are supported in <code>backingStore</code>: <dl> -- 1.9.3

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[libvirt] [PATCH] libxl: Don't overwrite errors from xenconfig
by Jim Fehlig 19 Mar '15

19 Mar '15

When converting domXML from native, the libxl driver was overwriting useful errors from the xenconfig parsing code with a useless, generic error. E.g. "internal error: parsing xm config failed" vs "internal error: config value usbdevice was malformed". Remove the redundant (and useless) error reporting in the libxl driver. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- src/libxl/libxl_driver.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index e555ca4..1c1af79 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -2222,22 +2222,16 @@ libxlConnectDomainXMLFromNative(virConnectPtr conn, goto cleanup; if (!(def = xenParseXL(conf, cfg->caps, - cfg->verInfo->xen_version_major))) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("parsing xl config failed")); + cfg->verInfo->xen_version_major))) goto cleanup; - } } else if (STREQ(nativeFormat, LIBXL_CONFIG_FORMAT_XM)) { if (!(conf = virConfReadMem(nativeConfig, strlen(nativeConfig), 0))) goto cleanup; if (!(def = xenParseXM(conf, cfg->verInfo->xen_version_major, - cfg->caps))) { - virReportError(VIR_ERR_INTERNAL_ERROR, "%s", - _("parsing xm config failed")); + cfg->caps))) goto cleanup; - } } else if (STREQ(nativeFormat, LIBXL_CONFIG_FORMAT_SEXPR)) { /* only support latest xend config format */ if (!(def = xenParseSxprString(nativeConfig, -- 1.8.4.5

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[libvirt] [PATCH] Add vircgroupdata dir to tests/Makefile.am
by Nehal J Wani 18 Mar '15

18 Mar '15

The folder vircgroupdata was introduced in commit 2dbfa716 as part of the test suite for virCgroupDetectMounts --- tests/Makefile.am | 1 + 1 file changed, 1 insertion(+) diff --git a/tests/Makefile.am b/tests/Makefile.am index 9277c13..27cee63 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -128,6 +128,7 @@ EXTRA_DIST = \ storagevolxml2xmlout \ sysinfodata \ test-lib.sh \ + vircgroupdata \ vircaps2xmldata \ vboxsnapshotxmldata \ virsh-uriprecedence \ -- 2.1.0

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[libvirt] [PATCH v3 4/4] migration: Expose 'cancelling' status to user
by zhanghailiang 18 Mar '15

18 Mar '15

'cancelling' status is introduced by commit 51cf4c1a, which is mainly avoid possible starting a new migration process while the previous one still exist. But we don't expose this status to user, instead by return a 'active' state. Here, we expose it to the user (such as libvirt), 'cancelling' status only occurs for a short window before the migration aborts, so for users, if they cancell a migration process, it will observe 'cancelling' status occasionally. Signed-off-by: zhanghailiang <zhang.zhanghailiang(a)huawei.com> Cc: libvir-list(a)redhat.com --- migration/migration.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/migration/migration.c b/migration/migration.c index 035e005..a57928d 100644 --- a/migration/migration.c +++ b/migration/migration.c @@ -179,13 +179,11 @@ MigrationInfo *qmp_query_migrate(Error **errp) break; case MIGRATION_STATUS_SETUP: info->has_status = true; - info->status = MIGRATION_STATUS_SETUP; info->has_total_time = false; break; case MIGRATION_STATUS_ACTIVE: case MIGRATION_STATUS_CANCELLING: info->has_status = true; - info->status = MIGRATION_STATUS_ACTIVE; info->has_total_time = true; info->total_time = qemu_clock_get_ms(QEMU_CLOCK_REALTIME) - s->total_time; @@ -221,7 +219,6 @@ MigrationInfo *qmp_query_migrate(Error **errp) get_xbzrle_cache_stats(info); info->has_status = true; - info->status = MIGRATION_STATUS_COMPLETED; info->has_total_time = true; info->total_time = s->total_time; info->has_downtime = true; @@ -243,13 +240,12 @@ MigrationInfo *qmp_query_migrate(Error **errp) break; case MIGRATION_STATUS_FAILED: info->has_status = true; - info->status = MIGRATION_STATUS_FAILED; break; case MIGRATION_STATUS_CANCELLED: info->has_status = true; - info->status = MIGRATION_STATUS_CANCELLED; break; } + info->status = s->state; return info; } -- 1.7.12.4

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[libvirt] [PATCH] util: more verbose error when failing to create macvtap device
by Laine Stump 18 Mar '15

18 Mar '15

Investigation of a problem with creating passthrough macvtap devices (https://bugzilla.redhat.com/show_bug.cgi?id=1185501) has shown that this slightly more verbose failure message is useful. In particular, the mac address can be used to determine the domain. You could also figure this out by looking at preceding messages in a debug log, but this gets it in a single place. --- src/util/virnetdevmacvlan.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/src/util/virnetdevmacvlan.c b/src/util/virnetdevmacvlan.c index dd66955..5fd2097 100644 --- a/src/util/virnetdevmacvlan.c +++ b/src/util/virnetdevmacvlan.c @@ -107,6 +107,7 @@ virNetDevMacVLanCreate(const char *ifname, unsigned int recvbuflen; struct nl_msg *nl_msg; struct nlattr *linkinfo, *info_data; + char macstr[VIR_MAC_STRING_BUFLEN]; if (virNetDevGetIndex(srcdev, &ifindex) < 0) return -1; @@ -177,8 +178,9 @@ virNetDevMacVLanCreate(const char *ifname, default: virReportSystemError(-err->error, - _("error creating %s type of interface attach to %s"), - type, srcdev); + _("error creating %s interface %s@%s (%s)"), + type, ifname, srcdev, + virMacAddrFormat(macaddress, macstr)); goto cleanup; } break; -- 2.1.0

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[libvirt] [PATCH v4 0/7] bridge network support enhancement and other network fixes
by Maxim Nestratov 18 Mar '15

18 Mar '15

v2-v4 change: Addressed Michal Privoznik's comments Maxim Nestratov (7): parallels: introduce and use string constants for network types and names parallels: fix parallelsLoadNetworks parallels: better bridge network interface support parallels: set correct network adapter device state parallels: make E1000 network adapter model default parallels: switch off offline management feature parallels: don't prevent domain define if VIR_DOMAIN_NET_TYPE_BRIDGE

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[libvirt] [PATCH] util: vhost user: support for bootindex
by zhang bo 18 Mar '15

18 Mar '15

Problem Description: When we set boot order for a vhost-user network interface, we found the boot index doesn't work. Cause of the Problem: In the function qemuBuildVhostuserCommandLine(), it forcely set the arg bootindex of function qemuBuildNicDevStr() to 0. Thus, the bootindex parameter got missing. Solution: Trans the arg bootindex down. Signed-off-by: Gao Haifeng <gaohaifeng.gao(a)huawei.com> Signed-off-by: Zhang Bo <oscar.zhangbo(a)huawei.com> --- src/qemu/qemu_command.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 5303de5..2f37812 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -7767,7 +7767,8 @@ static int qemuBuildVhostuserCommandLine(virCommandPtr cmd, virDomainDefPtr def, virDomainNetDefPtr net, - virQEMUCapsPtr qemuCaps) + virQEMUCapsPtr qemuCaps, + int bootindex) { virBuffer chardev_buf = VIR_BUFFER_INITIALIZER; virBuffer netdev_buf = VIR_BUFFER_INITIALIZER; @@ -7814,7 +7815,7 @@ qemuBuildVhostuserCommandLine(virCommandPtr cmd, virCommandAddArg(cmd, "-netdev"); virCommandAddArgBuffer(cmd, &netdev_buf); - if (!(nic = qemuBuildNicDevStr(def, net, -1, 0, 0, qemuCaps))) { + if (!(nic = qemuBuildNicDevStr(def, net, -1, bootindex, 0, qemuCaps))) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Error generating NIC -device string")); goto error; @@ -7859,8 +7860,12 @@ qemuBuildInterfaceCommandLine(virCommandPtr cmd, virNetDevBandwidthPtr actualBandwidth; size_t i; + + if (!bootindex) + bootindex = net->info.bootIndex; + if (actualType == VIR_DOMAIN_NET_TYPE_VHOSTUSER) - return qemuBuildVhostuserCommandLine(cmd, def, net, qemuCaps); + return qemuBuildVhostuserCommandLine(cmd, def, net, qemuCaps, bootindex); if (actualType == VIR_DOMAIN_NET_TYPE_HOSTDEV) { /* NET_TYPE_HOSTDEV devices are really hostdev devices, so @@ -7869,9 +7874,6 @@ qemuBuildInterfaceCommandLine(virCommandPtr cmd, return 0; } - if (!bootindex) - bootindex = net->info.bootIndex; - /* Currently nothing besides TAP devices supports multiqueue. */ if (net->driver.virtio.queues > 0 && !(actualType == VIR_DOMAIN_NET_TYPE_NETWORK || -- 1.7.12.4

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[libvirt] Domain XML isn't dumping full backing chain
by Deepak Shetty 18 Mar '15

18 Mar '15

Hi, I am using libvirt version 1.2.9.2 on F21 and i am unable to get the complete backing chain info in the virsh dumpxml output. Details below : *My backing chain per qemu-img :* [stack@devstack-f21 test]$ qemu-img info --backing-chain snap4.qcow2 image: snap4.qcow2 file format: qcow2 virtual size: 1.0G (1073741824 bytes) disk size: 196K cluster_size: 65536 backing file: ./snap3.qcow2 Format specific information: compat: 1.1 lazy refcounts: false image: ./snap3.qcow2 file format: qcow2 virtual size: 1.0G (1073741824 bytes) disk size: 196K cluster_size: 65536 backing file: ./snap2.qcow2 (actual path: ././snap2.qcow2) Format specific information: compat: 1.1 lazy refcounts: false image: ././snap2.qcow2 file format: qcow2 virtual size: 1.0G (1073741824 bytes) disk size: 196K cluster_size: 65536 backing file: ./snap1.qcow2 (actual path: ./././snap1.qcow2) Format specific information: compat: 1.1 lazy refcounts: false image: ./././snap1.qcow2 file format: qcow2 virtual size: 1.0G (1073741824 bytes) disk size: 196K cluster_size: 65536 backing file: ./base.qcow2 (actual path: ././././base.qcow2) Format specific information: compat: 1.1 lazy refcounts: false image: ././././base.qcow2 file format: qcow2 virtual size: 1.0G (1073741824 bytes) disk size: 196K cluster_size: 65536 Format specific information: compat: 1.1 lazy refcounts: false I created 4 snapshots using commands (similar to the below, just dumping the last one here ): [stack@devstack-f21 test]$ virsh snapshot-create-as test-domain on-test-snap4 --disk-only --reuse-external --diskspec hda,snapshot=external,file=/home/stack/test/snap4.qcow2 Domain snapshot on-test-snap4 created [stack@devstack-f21 test]$ virsh domblklist test-domain Target Source ------------------------------------------------ hda /home/stack/test/snap4.qcow2 virsh dumpxml test-domain|more .... <disk type='file' device='disk'> <driver name='qemu' type='qcow2' cache='none'/> <source file='/home/stack/test/snap4.qcow2'/> <backingStore type='file' index='1'> <format type='raw'/> <source file='/home/stack/test/./snap3.qcow2'/> <backingStore/> </backingStore> <target dev='hda' bus='ide'/> <alias name='ide0-0-0'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> ..... I think thats happening beccause the backingStore format is coming as 'raw' What am i missing ? thanx, deepak

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[libvirt] [PATCH] maint: Distribute tests/vircgroupdata
by Jiri Denemark 18 Mar '15

18 Mar '15

My commit 2dbfa71 added test data for vircgrouptest but forgot to distribute the new directory. Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- Pushed as a build-breaker. tests/Makefile.am | 1 + 1 file changed, 1 insertion(+) diff --git a/tests/Makefile.am b/tests/Makefile.am index 9277c13..bd2ea16 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -131,6 +131,7 @@ EXTRA_DIST = \ vircaps2xmldata \ vboxsnapshotxmldata \ virsh-uriprecedence \ + vircgroupdata \ virfiledata \ virpcitestdata \ virscsidata \ -- 2.3.3

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[libvirt] [PATCH] doc: Fix doc for backingStore
by Deepak Shetty 18 Mar '15

18 Mar '15

I spent quite some time figuring that backingStore info isn't included in the dom xml, unless guest is up and running. Hopefully putting that in the doc should help. This patch adds that info to the doc. Signed-off-by: Deepak C Shetty <deepakcs(a)redhat.com> --- docs/formatdomain.html.in | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index ab51982..dfd4f3a 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -2113,7 +2113,9 @@ and only used for output to describe the detected backing chains. <span class="since">Since 1.2.4</span>. An empty <code>backingStore</code> element means the sibling source is - self-contained and is not based on any backing store. The following + self-contained and is not based on any backing store. Note that + <code>backingStore</code> info is included in the output only when + the guest is up and running, otherwise its not included. The following attributes and sub-elements are supported in <code>backingStore</code>: <dl> -- 1.9.3

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