August 2011 - Devel - libvirt List Archives

[libvirt] [PATCH] build: simplify use of verify
by Eric Blake 30 Aug '11

30 Aug '11

Back in 2008 when this line of util.h was written, gnulib's verify module didn't allow the use of multiple verify() in one file in combination with our choice of gcc -W options. But that has since been fixed in gnulib, and newer gnulib even maps verify() to the C1x feature of _Static_assert, which gives even nicer diagnostics with a new enough compiler, so we might as well go with the simpler verify(). * src/util/util.h (VIR_ENUM_IMPL): Use simpler verify, now that gnulib module is smarter. --- As pointed out here: https://www.redhat.com/archives/libvir-list/2011-August/msg01348.html src/util/util.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/util/util.h b/src/util/util.h index 6e6265f..908ba7b 100644 --- a/src/util/util.h +++ b/src/util/util.h @@ -202,7 +202,7 @@ const char *virEnumToString(const char *const*types, # define VIR_ENUM_IMPL(name, lastVal, ...) \ static const char *const name ## TypeList[] = { __VA_ARGS__ }; \ - extern int (* name ## Verify (void)) [verify_true (ARRAY_CARDINALITY(name ## TypeList) == lastVal)]; \ + verify(ARRAY_CARDINALITY(name ## TypeList) == lastVal); \ const char *name ## TypeToString(int type) { \ return virEnumToString(name ## TypeList, \ ARRAY_CARDINALITY(name ## TypeList), \ -- 1.7.4.4

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[libvirt] [PATCH 0/6] Use fd: protocol for migration
by Jiri Denemark 30 Aug '11

30 Aug '11

Since qemu doesn't give us any reasonable errors when migration fails because of connection issues, we now create a connection to destination qemu ourselves and just pass the created socket to qemu. Daniel P. Berrange (1): Add API for duplicating a socket/client file descriptor Jiri Denemark (5): Add backlog parameter to virNetSocketListen Support changing UNIX socket owner in virNetSocketNewListenUNIX qemu: Refactor do{Tunnel,Native}Migrate functions qemu: Use virNetSocket for tunneled migration qemu: Use fd: protocol for migration src/qemu/qemu_migration.c | 541 +++++++++++++++++++++-------------------- src/rpc/virnetclient.c | 20 ++ src/rpc/virnetclient.h | 3 + src/rpc/virnetserverservice.c | 6 +- src/rpc/virnetsocket.c | 29 ++- src/rpc/virnetsocket.h | 5 +- tests/virnetsockettest.c | 10 +- 7 files changed, 336 insertions(+), 278 deletions(-) -- 1.7.6

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[libvirt] [PATCH v2 0/5] Virtual interface link state modification
by Peter Krempa 30 Aug '11

30 Aug '11

This patchset adds the ability for libvirt users to control interface link state of the virtual network devices provided by hypervisors. Modification of the link state is accomplished by adding a new XML element <link state"up"> or "down" to the domain XML. The corresponding network interface is thereafter initialised with the desired state. Live modification of the link state is achieved by calling virDomainUpdateDeviceFlags containing a modified interface configuration. Yet, users may modify only link state of an interface. This feature allows propagation of network topology changes to guests, testing scenarios in complex virtual networks, etc ... Future upgrade: - add support for VirtualBox Modifications to v1: - use virUpdateDeviceFlags instead of dedicated API - incorporate helpful comments by Eric Blake https://bugzilla.redhat.com/show_bug.cgi?id=643373 Peter Krempa (5): link-state: util: Add equality comparision functions for structures link-state: conf: Add element to XML for controling link state link-state: qemu: Add monitor handling for link state modification link-state: qemu: Add net intf modification to virUpdateDeviceFlags link-state: virsh: Add wrapper commands for changing link state docs/formatdomain.html.in | 21 +++ docs/schemas/domain.rng | 11 ++ src/conf/domain_conf.c | 24 ++++ src/conf/domain_conf.h | 11 ++ src/qemu/qemu_driver.c | 24 ++++ src/qemu/qemu_hotplug.c | 176 ++++++++++++++++++++++++++ src/qemu/qemu_hotplug.h | 8 ++ src/qemu/qemu_monitor.c | 19 +++ src/qemu/qemu_monitor.h | 4 + src/qemu/qemu_monitor_json.c | 23 ++++ src/qemu/qemu_monitor_json.h | 4 + src/qemu/qemu_monitor_text.c | 46 +++++++ src/qemu/qemu_monitor_text.h | 4 + src/qemu/qemu_process.c | 47 +++++++- src/util/network.c | 62 +++++++++ src/util/network.h | 5 + tools/virsh.c | 286 ++++++++++++++++++++++++++++++++++++++++++ tools/virsh.pod | 11 ++ 18 files changed, 785 insertions(+), 1 deletions(-) -- 1.7.3.4

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[libvirt] Could Libvirt detect the guest's media change and report it?
by Wayne Xia 30 Aug '11

30 Aug '11

There is some request in the management of VMs: If a guest OS give a "eject" command to reject its media, could this action be reported by libvirt? Is this possible or is there any plan to enable this in libvirt? -- Best Regards Wayne Xia mail:xiawenc@linux.vnet.ibm.com tel:86-010-82450803

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[libvirt] The design choice for how to enable block I/O throttling function in libvirt
by Zhi Yong Wu 30 Aug '11

30 Aug '11

HI, folks, I am trying to enable block I/O throttling function in libvirt. But currently i met some design questions, and don't make sure if we should extend blkiotune to support block I/O throttling or introduce one new libvirt command "blkiothrottle" to cover it or not. If you have some better idea, pls don't hesitate to drop your comments. If one new libvirt command "blkiothrottle" is introduced, I plan to design its usage syntax as below: virsh # help blkiothrottle NAME blkiothrottle - Set or display a block disk I/O throttle setting. SYNOPSIS blkiothrottle <domain> <device> [--bps <number>] [--bps_rd <number>] [--bps_wr <number>] [--iops <number>] [--iops_rd <number>] [--iops_wr <number>] DESCRIPTION Set or display a block disk I/O throttle setting. OPTIONS [--domain] <string> domain name, id or uuid [--device] <string> block device --bps <number> total throughput limits in bytes/s --bps_rd <number> read throughput limits in bytes/s --bps_wr <number> write throughput limits in bytes/s --iops <number> total operation limits in numbers/s --iops_rd <number> read operation limits in numbers/s --iops_wr <number> write operation limits in numbers/s virsh # 2.) If blkiotune command is extended to enable block I/O throttling function. virsh # help blkiotune NAME blkiotune - Get or set blkio parameters SYNOPSIS blkiotune <domain> [--weight <number>] [--config] [--live] [--current] [--bps <number>] [--bps_rd <number>] [--bps_wr <number>] [--iops <number>] [--iops_rd <number>] [--iops_wr <number>] DESCRIPTION Get or set the current blkio parameters for a guest domain. To get the blkio parameters use following command: virsh # blkiotune <domain> OPTIONS [--domain] <string> domain name, id or uuid --weight <number> IO Weight in range [100, 1000] --config affect next boot --live affect running domain --current affect current domain Welcome to your suggestions or comments about how to choose it. thanks. -- Regards, Zhi Yong Wu

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[libvirt] [v2 0/4] python-virtinst USB improvements
by Marc-André Lureau 30 Aug '11

30 Aug '11

Hi, Here are a few patches that go with the libvirt series to improve USB support. It adds --controller and --usbredir, as well as providing some new API for virt-manager. The last patch default USB controller to ich9/usb2 on Windows 7 guest. More OS probably support it, since it's been around since early 2007. v2 adds support for USB redirection over Spice. Marc-André Lureau (4): Fix typo s/type/managed Add advanced --controller support, augmenting VirtualController Add --usbredir device RFC: Default to ICH9 USB2 controller for Win7 man/en/virt-clone.1 | 6 ++- man/en/virt-image.1 | 45 ++++++------- man/en/virt-install.1 | 51 +++++++++++++++- man/en/virt-install.pod.in | 59 +++++++++++++++++- tests/cli-test-xml/compare/many-devices.xml | 30 +++++++++ tests/clitest.py | 52 ++++++++++++++++ tests/utils.py | 8 +- tests/xmlparse-xml/change-controllers-in.xml | 4 + tests/xmlparse-xml/change-controllers-out.xml | 4 + tests/xmlparse.py | 9 +++ virt-install | 2 + virtinst/Guest.py | 26 ++++++++ virtinst/VirtualController.py | 78 ++++++++++++++++++++++-- virtinst/VirtualDevice.py | 49 ++++++++++++++- virtinst/VirtualHostDevice.py | 72 +++++++++++++++++++++- virtinst/XMLBuilderDomain.py | 10 +++ virtinst/__init__.py | 5 +- virtinst/cli.py | 82 +++++++++++++++++++++++++ virtinst/osdict.py | 3 + virtinst/support.py | 6 ++ 20 files changed, 557 insertions(+), 44 deletions(-) -- 1.7.6

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[libvirt] [v2 0/3] virt-manager USB improvements
by Marc-André Lureau 29 Aug '11

29 Aug '11

Hi, This is an update of the patch series sent earlier. v2 adds support for USB redirection over Spice channel. Marc-André Lureau (3): virt-manager: Add controller model in details virt-manager: Add redirected devices details virt-manager: Learn to add USB redirection devices src/virtManager/addhardware.py | 66 ++++++++++- src/virtManager/details.py | 33 +++++- src/virtManager/uihelpers.py | 19 +++ src/vmm-add-hardware.glade | 254 +++++++++++++++++++++++++++++++++++++++- src/vmm-details.glade | 118 +++++++++++++++++++ 5 files changed, 482 insertions(+), 8 deletions(-) -- 1.7.6

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[libvirt] [PATCH] Learn to use spicevmc as a redirection type for usb-redir
by Marc-André Lureau 29 Aug '11

29 Aug '11

This patch should be applied on top of "Add usb-redir device" https://www.redhat.com/archives/libvir-list/2011-August/msg01294.html --- src/conf/domain_conf.c | 31 ++++++++++++++++--- src/conf/domain_conf.h | 1 + tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args | 2 + tests/qemuxml2argvdata/qemuxml2argv-usb-redir.xml | 1 + tests/qemuxml2argvtest.c | 3 +- 5 files changed, 32 insertions(+), 6 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 31330a5..1bf893e 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -288,7 +288,8 @@ VIR_ENUM_IMPL(virDomainChrTcpProtocol, VIR_DOMAIN_CHR_TCP_PROTOCOL_LAST, VIR_ENUM_IMPL(virDomainChrSpicevmc, VIR_DOMAIN_CHR_SPICEVMC_LAST, "vdagent", - "smartcard") + "smartcard", + "usbredir") VIR_ENUM_IMPL(virDomainSmartcard, VIR_DOMAIN_SMARTCARD_TYPE_LAST, "host", @@ -5396,11 +5397,16 @@ virDomainHostdevDefParseXML(const xmlNodePtr node, redirection); goto error; } + if (def->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_USB) { virDomainReportError(VIR_ERR_INTERNAL_ERROR, _("only usb redirection is supported")); goto error; } + + if (def->source.subsys.u.chr.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC) { + def->source.subsys.u.chr.data.spicevmc = VIR_DOMAIN_CHR_SPICEVMC_USBREDIR; + } } cur = node->children; @@ -10159,13 +10165,28 @@ virDomainHostdevDefFormat(virBufferPtr buf, mode, type, def->managed ? "yes" : "no"); if (redirection != NULL) { virBufferAsprintf(buf, " redirection='%s'", redirection); + + if (def->source.subsys.u.chr.type == VIR_DOMAIN_CHR_TYPE_SPICEVMC) { + virBufferAddLit(buf, "/>\n"); + return 0; + } } + virBufferAddLit(buf, ">\n"); + virBufferAddLit(buf, " <source"); - if (def->redirection) { - virBufferAsprintf(buf, " mode='connect' host='%s' service='%s'/", - def->source.subsys.u.chr.data.tcp.host, - def->source.subsys.u.chr.data.tcp.service); + if (def->redirection) + switch (def->source.subsys.u.chr.type) { + case VIR_DOMAIN_CHR_TYPE_TCP: + virBufferAsprintf(buf, " mode='connect' host='%s' service='%s'/", + def->source.subsys.u.chr.data.tcp.host, + def->source.subsys.u.chr.data.tcp.service); + break; + default: + virDomainReportError(VIR_ERR_INTERNAL_ERROR, + _("unsupported redirection type %s"), + redirection); + return -1; } virBufferAddLit(buf, ">\n"); diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index ff25743..379332d 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -538,6 +538,7 @@ enum virDomainChrTcpProtocol { enum virDomainChrSpicevmcName { VIR_DOMAIN_CHR_SPICEVMC_VDAGENT, VIR_DOMAIN_CHR_SPICEVMC_SMARTCARD, + VIR_DOMAIN_CHR_SPICEVMC_USBREDIR, VIR_DOMAIN_CHR_SPICEVMC_LAST, }; diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args index 0949585..585ae53 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args +++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.args @@ -5,4 +5,6 @@ LC_ALL=C PATH=/bin HOME=/home/test USER=test LOGNAME=test /usr/bin/qemu -S -M pc -device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pci.0,multifunction=on,addr=0x4.0x2 \ -chardev socket,id=charusbredir0,host=localhost,port=4000 \ -device usb-redir,chardev=charusbredir0,id=usbredir0 \ +-chardev spicevmc,id=charusbredir1,name=usbredir \ +-device usb-redir,chardev=charusbredir1,id=usbredir1 \ -device virtio-balloon-pci,id=balloon0,bus=pci.0,multifunction=on,addr=0x3.0x0 diff --git a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.xml b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.xml index bb50b81..a67facc 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-usb-redir.xml @@ -28,6 +28,7 @@ <hostdev mode='subsystem' type='usb' redirection='tcp'> <source mode='connect' host='localhost' service='4000'/> </hostdev> + <hostdev mode='subsystem' type='usb' redirection='spicevmc'/> <memballoon model='virtio'/> </devices> </domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index 35e6d27..090ec7a 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -511,7 +511,8 @@ mymain(void) DO_TEST("usb-redir", false, QEMU_CAPS_CHARDEV, QEMU_CAPS_DEVICE, QEMU_CAPS_NODEFCONFIG, QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_USB_HUB, - QEMU_CAPS_ICH9_USB_EHCI1, QEMU_CAPS_USB_REDIR); + QEMU_CAPS_ICH9_USB_EHCI1, QEMU_CAPS_USB_REDIR, + QEMU_CAPS_SPICE, QEMU_CAPS_CHARDEV_SPICEVMC); DO_TEST("smbios", false, QEMU_CAPS_SMBIOS_TYPE); -- 1.7.6

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[libvirt] [PATCH] rpc: fix a typo in debugging log in virNetServerProgramSendStreamData
by Guannan Ren 29 Aug '11

29 Aug '11

The bufferOffset has been initialized to zero in virNetMessageEncodePayloadRaw(), so, we use bufferLength to represent the length of message which is going to be sent to client side. --- src/rpc/virnetserverprogram.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/rpc/virnetserverprogram.c b/src/rpc/virnetserverprogram.c index ac3f0fd..2e9e3f7 100644 --- a/src/rpc/virnetserverprogram.c +++ b/src/rpc/virnetserverprogram.c @@ -468,7 +468,7 @@ int virNetServerProgramSendStreamData(virNetServerProgramPtr prog, if (virNetMessageEncodePayloadEmpty(msg) < 0) return -1; } - VIR_DEBUG("Total %zu", msg->bufferOffset); + VIR_DEBUG("Total %zu", msg->bufferLength); return virNetServerClientSendMessage(client, msg); } -- 1.7.1

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[libvirt] [PATCH] virsh: Add more human-friendly output of domblkstat command
by Peter Krempa 29 Aug '11

29 Aug '11

Users of virsh complain that output of the domblkstat command is not intuitive enough. This patch adds explanation of fields returned by this command to the help section for domblkstat and the man page of virsh. Also a switch --human is added for domblkstat that prints the fields with more descriptive texts. https://bugzilla.redhat.com/show_bug.cgi?id=731656 --- tools/virsh.c | 52 +++++++++++++++++++++++++++++++++++++++++----------- tools/virsh.pod | 11 ++++++++++- 2 files changed, 51 insertions(+), 12 deletions(-) diff --git a/tools/virsh.c b/tools/virsh.c index 15b9bdd..41ba1e4 100644 --- a/tools/virsh.c +++ b/tools/virsh.c @@ -1054,13 +1054,21 @@ cleanup: */ static const vshCmdInfo info_domblkstat[] = { {"help", N_("get device block stats for a domain")}, - {"desc", N_("Get device block stats for a running domain.")}, + {"desc", N_("Get device block stats for a running domain.\n\n" + " Explanation of fields:\n" + " rd_req - count of read requests\n" + " rd_bytes - count of read bytes\n" + " wr_req - count of write requests\n" + " wr_bytes - count of written bytes\n" + " errs - error count")}, {NULL,NULL} }; static const vshCmdOptDef opts_domblkstat[] = { {"domain", VSH_OT_DATA, VSH_OFLAG_REQ, N_("domain name, id or uuid")}, {"device", VSH_OT_DATA, VSH_OFLAG_REQ, N_("block device")}, + {"human", VSH_OT_BOOL, 0, N_("print a more human readable output")}, + {NULL, 0, 0, NULL} }; @@ -1070,6 +1078,7 @@ cmdDomblkstat (vshControl *ctl, const vshCmd *cmd) virDomainPtr dom; const char *name = NULL, *device = NULL; struct _virDomainBlockStats stats; + int humanReadable = vshCommandOptBool(cmd, "human"); if (!vshConnectionUsability (ctl, ctl->conn)) return false; @@ -1088,20 +1097,41 @@ cmdDomblkstat (vshControl *ctl, const vshCmd *cmd) return false; } - if (stats.rd_req >= 0) - vshPrint (ctl, "%s rd_req %lld\n", device, stats.rd_req); + if (humanReadable) { + /* human friendly output */ + vshPrint(ctl, N_("Device: %s\n"), device); + + if (stats.rd_req >= 0) + vshPrint (ctl, N_("read request count: %lld\n"), stats.rd_req); + + if (stats.rd_bytes >= 0) + vshPrint (ctl, N_("number of read bytes: %lld\n"), stats.rd_bytes); + + if (stats.wr_req >= 0) + vshPrint (ctl, N_("write request count: %lld\n"), stats.wr_req); - if (stats.rd_bytes >= 0) - vshPrint (ctl, "%s rd_bytes %lld\n", device, stats.rd_bytes); + if (stats.wr_bytes >= 0) + vshPrint (ctl, N_("number of written bytes: %lld\n"), stats.wr_bytes); - if (stats.wr_req >= 0) - vshPrint (ctl, "%s wr_req %lld\n", device, stats.wr_req); + if (stats.errs >= 0) + vshPrint (ctl, N_("error count: %lld\n"), stats.errs); + } else { + /* script friendly output */ + if (stats.rd_req >= 0) + vshPrint (ctl, "%s rd_req %lld\n", device, stats.rd_req); + + if (stats.rd_bytes >= 0) + vshPrint (ctl, "%s rd_bytes %lld\n", device, stats.rd_bytes); - if (stats.wr_bytes >= 0) - vshPrint (ctl, "%s wr_bytes %lld\n", device, stats.wr_bytes); + if (stats.wr_req >= 0) + vshPrint (ctl, "%s wr_req %lld\n", device, stats.wr_req); - if (stats.errs >= 0) - vshPrint (ctl, "%s errs %lld\n", device, stats.errs); + if (stats.wr_bytes >= 0) + vshPrint (ctl, "%s wr_bytes %lld\n", device, stats.wr_bytes); + + if (stats.errs >= 0) + vshPrint (ctl, "%s errs %lld\n", device, stats.errs); + } virDomainFree(dom); return true; diff --git a/tools/virsh.pod b/tools/virsh.pod index 81d7a1e..620097d 100644 --- a/tools/virsh.pod +++ b/tools/virsh.pod @@ -419,10 +419,19 @@ the B<shutdown> command instead. However, this does not delete any storage volumes used by the guest, and if the domain is persistent, it can be restarted later. -=item B<domblkstat> I<domain> I<block-device> +=item B<domblkstat> I<domain> I<block-device> [I<--human>] Get device block stats for a running domain. +Use I<--human> for a more human readable output. + +B<Explanation of fields:> + rd_req - count of read requests + rd_bytes - count of read bytes + wr_req - count of write requests + wr_bytes - count of written bytes + errs - error count + =item B<domifstat> I<domain> I<interface-device> Get network interface stats for a running domain. -- 1.7.3.4

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