November 2016 - Devel - libvirt List Archives

[libvirt] [RFC 0/5] Qemu: s390: Cpu Model Support
by Jason J. Herne 05 Nov '16

05 Nov '16

Thanks for all your feedback up to this point. We've made some progress on this and we also have a few questions. Please let us know if we're on the right track or if we're off in the weeds on this. Here is what we have so far. Patch #1 updates s390's cpu driver to support some operations needed for cpu model support within Libvirt's existing infrastructure. Patch #2 removes s390's hard coded "host" model string. Jiri thought it made more sense to simply leave this blank. Path #3 adds qmp query-cpu-model-expansion command. Patch #4 probes Qemu's view of the host model (query-cpu-model-expansion), caches the response and uses it to fill in qemuCaps->hostCpuModel. Archs that do not implement query-cpu-model-expansion will continue to fill in qemuCaps->hostCpuModel from caps->host.cpu. Patch #5 updates qemuBuildCpuModelArgStr's VIR_CPU_MODE_HOST_MODEL case. It seems like all archs except PPC64 do not support host model mode. We add an s390 path here and get the guest cpu model from virQEMUCapsGetHostModel() which will get the model name from qemuCaps->hostCpuModel. NOTE: I just realized we'll need need to handle the case where virQEMUCapsGetHostModel returns NULL or the model is NULL or "". We probably should just throw an error and give up in that case. Here is a list of outstanding things to do and some questions. 1. virsh domcapabilities --emulatorbin flag This works today if the command is passed --emulatorbin /usr/bin/qemu-kvm. If no emulatorbin is given then Libvirt seems to choose /usr/bin/qemu-system-s390x my system which does not have kvm enabled. A kvm session is needed for s390 to properly compute the host model. A kvm session is only available for the qemu-kvm binary. Is the answer to tell our users to always supply --emulatorbin with /usr/bin/qemu-kvm argument? Or is there a more user friendly solution to this? 2. virsh baseline and compare support. Both of these commands, for s390 at least, will need to spin up a Qemu session with monitor to compute the result. The only place I see this done today is qemu_capabilities. Rather than blindly duplicate the code, I guess we should carve out some type of api for spinning up a monitor backed Qemu instance, yes? Also, neither compare nor baseline have the --emulatorbin flag. So we'll either need to add them or find an alternate solution. Any thoughts on this? 3.Support host passthrough mode. This essentially just means passing -cpu host to qemu. We know Qemu supports this for s390 today. But Libvirt claims it is not supported due to the following: In virQEMUCapsIsCPUModeSupported, our virt "type" is VIR_DOMAIN_VIRT_QEMU, and not VIR_DOMAIN_VIRT_KVM. virttype comes from domCaps and is set here: qemuConnectGetDomainCapabilities() The relevant code is: if (qemuHostdevHostSupportsPassthroughLegacy() || qemuHostdevHostSupportsPassthroughVFIO()) virttype = VIR_DOMAIN_VIRT_KVM; else virttype = VIR_DOMAIN_VIRT_QEMU; I'll admit, I have not been able to figure out why these checks are failing in my test environment, when I suspect they should be passing. But in my case it seems as though these relate to host device passthrough. How do they apply to cpu model passthrough. What am I missing? Thanks for your time. Collin L. Walling (3): s390: Report blank host model instead of "host" qemu: qmp query-cpu-model-expansion command qemu-caps: Get host model directly from Qemu when available Jason J. Herne (2): s390: Cpu driver support for getModels, update and compare s390: qemu: Support cpu host-model mode src/cpu/cpu_s390.c | 33 +++++++++++++-- src/qemu/qemu_capabilities.c | 88 ++++++++++++++++++++++++++++++++++++++- src/qemu/qemu_command.c | 3 ++ src/qemu/qemu_monitor.c | 28 +++++++++++++ src/qemu/qemu_monitor.h | 19 +++++++++ src/qemu/qemu_monitor_json.c | 98 ++++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 6 +++ 7 files changed, 271 insertions(+), 4 deletions(-) -- 1.9.1

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[libvirt] [PATCH glib] Add missing dep on intltool
by Daniel P. Berrange 05 Nov '16

05 Nov '16

Libvirt-glib requires intltool at build time. Previously it was pulled in transitively via another RPM dependancy. As of Fedora 26, this no longer happens, exposing the missing RPM dep. Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- Pushed as a build fix for rawhide libvirt-glib.spec.in | 1 + 1 file changed, 1 insertion(+) diff --git a/libvirt-glib.spec.in b/libvirt-glib.spec.in index 2ec8337..a1ca11f 100644 --- a/libvirt-glib.spec.in +++ b/libvirt-glib.spec.in @@ -37,6 +37,7 @@ BuildRequires: libtool %if %{with_vala} BuildRequires: vala-tools %endif +BuildRequires: intltool %package devel Group: Development/Libraries -- 2.9.3

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[libvirt] ANNOUNCE: libvirt-glib release 1.0.0
by Daniel P. Berrange 05 Nov '16

05 Nov '16

I am pleased to announce that a new release of the libvirt-glib package, version 1.0.0, is now available from ftp://libvirt.org/libvirt/glib/ The packages are GPG signed with Key fingerprint: DAF3 A6FD B26B 6291 2D0E 8E3F BE86 EBB4 1510 4FDF (4096R) Changes in this release: - Switch to new release numbering scheme, major digit incremented each year, minor for each release, micro for stable branches (if any) - Fix Libs.private variable in pkg-config file - Fix git introspection warnings - Add ability to set SPICE gl property - Add support for virtio video model - Add support for 3d accel property - Add support for querying video model - Add support for host device config for PCI devs - Add docs for more APIs - Avoid unused variable warnings - Fix check for libvirt optional features to use pkg-config - Delete manually written python binding. All apps should use PyGObject with gobjection introspection. - Add schema to be NULL on config objects - Preserve unknown devices listed in XML - Add further test coverage libvirt-glib comprises three distinct libraries: - libvirt-glib - Integrate with the GLib event loop and error handling - libvirt-gconfig - Representation of libvirt XML documents as GObjects - libvirt-gobject - Mapping of libvirt APIs into the GObject type system NB: While libvirt aims to be API/ABI stable forever, with libvirt-glib we are not currently guaranteeing that libvirt-glib libraries are permanently API/ABI stable. That said we do not expect to break the API/ABI for the forseeable future and will always strive avoid it. Follow up comments about libvirt-glib should be directed to the regular libvir-list(a)redhat.com development list. Thanks to all the people involved in contributing to this release. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://entangle-photo.org -o- http://search.cpan.org/~danberr/ :|

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[libvirt] [PATCH] qemu: Fix build on RHEL-6
by Jiri Denemark 04 Nov '16

04 Nov '16

Commit c29e6d4805 cause build failure on RHEL-6: ../../src/qemu/qemu_capabilities.c: In function 'virQEMUCapsIsValid': ../../src/qemu/qemu_capabilities.c:4085: error: declaration of 'ctime' shadows a global declaration [-Wshadow] /usr/include/time.h:258: error: shadowed declaration is here [-Wshadow] Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/qemu/qemu_capabilities.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index ffe7bcd..747226c 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -4082,12 +4082,12 @@ virQEMUCapsNewForBinary(virCapsPtr caps, bool virQEMUCapsIsValid(virQEMUCapsPtr qemuCaps, - time_t ctime) + time_t qemuctime) { if (!qemuCaps->binary) return true; - if (!ctime) { + if (!qemuctime) { struct stat sb; if (stat(qemuCaps->binary, &sb) < 0) { @@ -4097,14 +4097,14 @@ virQEMUCapsIsValid(virQEMUCapsPtr qemuCaps, virStrerror(errno, ebuf, sizeof(ebuf))); return false; } - ctime = sb.st_ctime; + qemuctime = sb.st_ctime; } - if (ctime != qemuCaps->ctime) { + if (qemuctime != qemuCaps->ctime) { VIR_DEBUG("Outdated capabilities for '%s': QEMU binary changed " "(%lld vs %lld)", qemuCaps->binary, - (long long) ctime, (long long) qemuCaps->ctime); + (long long) qemuctime, (long long) qemuCaps->ctime); return false; } -- 2.10.2

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[libvirt] [libvirt-glib] tests: Don't leak xml data in test-gconfig-device-unknown
by Christophe Fergeau 04 Nov '16

04 Nov '16

--- tests/test-gconfig.c | 1 + 1 file changed, 1 insertion(+) diff --git a/tests/test-gconfig.c b/tests/test-gconfig.c index 9cf3f12..2c98c25 100644 --- a/tests/test-gconfig.c +++ b/tests/test-gconfig.c @@ -782,6 +782,7 @@ static void test_domain_device_unknown(void) g_list_free_full(devices, g_object_unref); g_object_unref(G_OBJECT(domain)); + g_free(xml); } -- 2.9.3

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[libvirt] [PATCH v2 00/19] Avoid races with udev
by Michal Privoznik 04 Nov '16

04 Nov '16

This is v2 of: https://www.redhat.com/archives/libvir-list/2016-October/msg01151.html diff to v1: - Added udev rule (patch 18/19) - Wire the beast into spec file - Introduced a configure argument that suppress installation of this feature One of the problems here is that this requires patched udev: https://github.com/systemd/systemd/commit/4f985bd80278972912b80df1390f84d7a… This is going to be part of systemd-232 release. Therefore, in my code I've put checks for 232 version. Michal Privoznik (19): virseclabel.h: Include stdbool.h virseclabel: Introduce virSecurityDeviceLabelDefNewLabel security_dac: Pass manager to virSecurityDACSetImageLabel security_dac: Pass manager to virSecurityDACRestoreFileLabelInternal virudev: Introduce basic skeleton virudev: Implement virUdevMgrAddLabel and virUdevMgrRemoveAllLabels virudev: Introduce virUdevMgrDump tests: Introduce virudevtest virudev: Parse virUdevMgr from JSON virudev: Introduce virUdevMgrLookupLabels util: Introduce libvirt_udevhelper security: Wire up virUdevMgr qemu.conf: Introduce write_udev qemu: Wire up virUdevMgr qemu: Reload virUdevMgr on start virudevtest: Introduce device filtering qemu: Filter uninteresting paths for virUdevMgr udev: Introduce rule spec: Install udev helper/rule more cleanly daemon/99-libvirt.rules | 12 + daemon/Makefile.am | 22 +- libvirt.spec.in | 26 ++ m4/virt-udev.m4 | 26 ++ po/POTFILES.in | 2 + src/Makefile.am | 25 ++ src/libvirt_private.syms | 15 + src/qemu/libvirtd_qemu.aug | 1 + src/qemu/qemu.conf | 5 + src/qemu/qemu_conf.c | 3 + src/qemu/qemu_conf.h | 5 + src/qemu/qemu_domain.c | 12 +- src/qemu/qemu_domain.h | 3 +- src/qemu/qemu_driver.c | 40 +- src/qemu/qemu_hotplug.c | 35 +- src/qemu/qemu_process.c | 47 ++- src/qemu/qemu_process.h | 3 + src/qemu/test_libvirtd_qemu.aug.in | 1 + src/security/security_dac.c | 103 ++++-- src/security/security_manager.c | 16 + src/security/security_manager.h | 5 + src/security/security_selinux.c | 47 ++- src/util/udevhelper.c | 137 +++++++ src/util/virseclabel.c | 14 + src/util/virseclabel.h | 6 + src/util/virudev.c | 588 ++++++++++++++++++++++++++++++ src/util/virudev.h | 63 ++++ tests/Makefile.am | 12 + tests/virudevmock.c | 29 ++ tests/virudevtest.c | 312 ++++++++++++++++ tests/virudevtestdata/complex.json | 30 ++ tests/virudevtestdata/empty.json | 5 + tests/virudevtestdata/simple-dac.json | 13 + tests/virudevtestdata/simple-selinux.json | 13 + 34 files changed, 1619 insertions(+), 57 deletions(-) create mode 100644 daemon/99-libvirt.rules create mode 100644 src/util/udevhelper.c create mode 100644 src/util/virudev.c create mode 100644 src/util/virudev.h create mode 100644 tests/virudevmock.c create mode 100644 tests/virudevtest.c create mode 100644 tests/virudevtestdata/complex.json create mode 100644 tests/virudevtestdata/empty.json create mode 100644 tests/virudevtestdata/simple-dac.json create mode 100644 tests/virudevtestdata/simple-selinux.json -- 2.8.4

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[libvirt] [glib v3] Allow unknown devices in domain XML config
by Zeeshan Ali 04 Nov '16

04 Nov '16

Changes in this version of series: In the newly added test case, ensure: * all device objects are freed * devices XML tree remains the same.

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[libvirt] [PATCH] docs: Add Qt Virtual machines manager and Qt Remote viewer
by Alexander Vasilenko 04 Nov '16

04 Nov '16

--- docs/apps.html.in | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/docs/apps.html.in b/docs/apps.html.in index 1a138b3..4efb318 100644 --- a/docs/apps.html.in +++ b/docs/apps.html.in @@ -208,6 +208,17 @@ to remote consoles supporting the VNC protocol. Also provides an optional mozilla browser plugin. </dd> + <dt><a href="http://f1ash.github.io/qt-virt-manager">qt-virt-manager</a></dt> + <dd> + The Qt GUI for create and control VMs and another virtual entities + (aka networks, storages, interfaces, secrets, network filters). + Contains integrated LXC/SPICE/VNC viewer for accessing the graphical or + text console associated with a virtual machine or container. + </dd> + <dt><a href="http://f1ash.github.io/qt-virt-manager/#virtual-machines-viewer">qt-remote-viewer</a></dt> + <dd> + The Qt VNC/SPICE viewer for access to remote desktops or VMs. + </dd> </dl> <h2><a name="iaas">Infrastructure as a Service (IaaS)</a></h2> -- 2.10.1

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[libvirt] [PATCH] vshReadlineParse: Remove unused variable
by Michal Privoznik 04 Nov '16

04 Nov '16

After 06a7b1ff4 the @&opts_need_arg is not used anywhere. Well, it is set but never read: vsh.c: In function 'vshReadlineParse': vsh.c:2658:14: warning: variable 'opts_need_arg' set but not used [-Wunused-but-set-variable] uint64_t opts_need_arg, opts_seen; ^~~~~~~~~~~~~ Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- tools/vsh.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/tools/vsh.c b/tools/vsh.c index 17199ae..f7ba070 100644 --- a/tools/vsh.c +++ b/tools/vsh.c @@ -2655,7 +2655,7 @@ vshReadlineParse(const char *text, int state) static char **completed_list; static unsigned int completed_list_index; static uint64_t const_opts_need_arg, const_opts_required, const_opts_seen; - uint64_t opts_need_arg, opts_seen; + uint64_t opts_seen; size_t opt_index; static bool cmd_exists, opts_filled, opt_exists; static bool non_bool_opt_exists, data_complete; @@ -2728,7 +2728,6 @@ vshReadlineParse(const char *text, int state) if (vshCmddefOptParse(cmd, &const_opts_need_arg, &const_opts_required) < 0) goto error; - opts_need_arg = const_opts_need_arg; opts_seen = const_opts_seen; opts_filled = true; } else if (tkdata[0] == '-' && tkdata[1] == '-' && @@ -2793,7 +2792,6 @@ vshReadlineParse(const char *text, int state) || opt->type == VSH_OT_BOOL) goto error; opt_exists = true; - opts_need_arg = const_opts_need_arg; opts_seen = const_opts_seen; } else { /* In every other case, return NULL */ -- 2.8.4

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[libvirt] Libvirt build broken
by Wei Liu 04 Nov '16

04 Nov '16

Hi Xen Project's CI system found a build failure between libvirt changes 06a7b1ff..478ddedc. I don't think this is Xen specific FWIW. The build log can be found at: http://logs.test-lab.xenproject.org/osstest/logs/101868/build-amd64-libvirt… The first error: CC libvirt_driver_la-libvirt-host.lo libvirt.c:320:15: error: variable 'virTLSThreadImpl' has initializer but incomplete type static struct gcry_thread_cbs virTLSThreadImpl = { ^ Earlier in configure: configure: gnutls: no >From the look of it configure doesn't work properly anymore. Wei.

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