April 2018 - Devel - libvirt List Archives

[libvirt] [PATCH v1 0/4] CPU Model Comparsion via QEMU
by Collin Walling 18 Apr '18

18 Apr '18

[Overview] This patch series implements an interface to "query-cpu-model-comparison" (available QEMU ~2.8.0) via virsh cpu-compare. [Using This Feature] Run virsh cpu-compare (ensure you are running the virsh in your build dir) and pass it an xml file describing a cpu definition. You can copy the cpu xml from virsh capabilities (if you want to compare the host cpu to itself), or a cpu defined in any guest xml. Additionally, you can create a cpu xml as such (e.g. for s390x): <cpu> <arch>s390x</arch> <model fallback='forbid'>model_name</model> <feature policy='require|disable' name='feature_name'/> </cpu> NOTE: the presence of <arch> is optional and it will treat the cpu defined in the xml as a host cpu. This will disregard all feature policies (i.e. all features listed will behave with policy='require', even if disable is specified). NOTE: as s390x only supports feature policies 'require' and 'disable', I am uncertain how to handle the other policies when parsing CPUDef to JSON. [Example Output] On an s390x system running a z13.2, this is the expected output (where each file describes a CPU model corresponding to the name of the file): $ virsh cpu-compare zEC12.xml Host CPU is a superset of CPU described in zEC12.xml $ virsh cpu-compare z13.2.xml CPU described in z13.2.xml is identical to host CPU $ virsh cpu-compare z14.xml CPU described in z14.xml is incompatible with host CPU $ virsh cpu-compare z14.xml --error error: Failed to compare host CPU with z14.xml error: the CPU is incompatible with host CPU $ virsh cpu-compare z12345.xml error: Failed to compare host CPU with z12345cpu.xml error: internal error: unable to execute QEMU command 'query-cpu-model-comparison': The CPU definition 'z12345-base' is unknown. [Patch Rundown] The first patch copies the host CPU definition from qemuCaps to virCaps so we can easily access the host CPU model and features when we handle the CPU comparison in qemu_driver. Note that we take care to not clobber anything already stored in the host CPU definition until we have successfully constructed a new host CPU definition. The second patch refactors the xml -> CPUDef code. This is used in virCPUCompareXML, qemuCompareCPU (and potentially for baseline). The third patch creates the interface from libvirt to QEMU and handles parsing the CPUDef -> JSON and JSON -> CPUModelInfo. In order to respect the data returned from this command, we capture the "responsible_properties" field from the comparison command even though it is not entirely necessary for what we are trying to accomplish here (which is to simply report if the comparison result is "incompatible", "superset", or "identical"). The fourth patch creates the interface from virsh cpu-compare to the qemu driver. The qemu driver will handle parsing the xml passed to the virsh command and parsing the result of the QMP command. Note that the "incompatible" and "subset" results are grouped together (and report "incompatible"). TODO: - implement cpu-baseline (I've noted Chris Venteicher's current progress on this): https://www.redhat.com/archives/libvir-list/2018-April/msg01274.html - update qemucapabilitiestest files for qemu >= 2.8.0 (need to add comparison command) - consider adding a new test file for comparing cpu models via QEMU if necessary Collin Walling (4): qemu: place qemuCaps host cpu model in virCaps cpu_conf: xml to cpu definition parse helper qemu: implement query-cpu-model-comparison via qemu qemu: hook up cpu-comparison to qemu driver src/conf/cpu_conf.c | 30 ++++++++++ src/conf/cpu_conf.h | 6 ++ src/cpu/cpu.c | 14 +---- src/libvirt_private.syms | 1 + src/qemu/qemu_capabilities.c | 108 +++++++++++++++++++++++++++++++++++- src/qemu/qemu_capabilities.h | 9 +++ src/qemu/qemu_driver.c | 96 ++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor.c | 14 +++++ src/qemu/qemu_monitor.h | 6 ++ src/qemu/qemu_monitor_json.c | 128 +++++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_monitor_json.h | 6 ++ 11 files changed, 404 insertions(+), 14 deletions(-) -- 2.7.4

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[libvirt] [PATCH] vz: build fix
by Nikolay Shirokovskiy 18 Apr '18

18 Apr '18

Broken by [1] commit - trailing comma instead of semicolon. Fortunately the issue did not get sneak in released 4.2 version. Note that uriSchemes for parallelsConnectDriver should not be allocated on stack. [1] 8e4f9a27: "driver: declare supported URI schemes in virConnectDriver struct" --- src/vz/vz_driver.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/src/vz/vz_driver.c b/src/vz/vz_driver.c index 4c30ee1..a9ee773 100644 --- a/src/vz/vz_driver.c +++ b/src/vz/vz_driver.c @@ -4163,7 +4163,11 @@ static virStateDriver vzStateDriver = { /* Parallels domain type backward compatibility*/ static virHypervisorDriver parallelsHypervisorDriver; -static virConnectDriver parallelsConnectDriver; +static virConnectDriver parallelsConnectDriver = { + .localOnly = true, + .uriSchemes = (const char *[]){ "parallels", NULL }, + .hypervisorDriver = &parallelsHypervisorDriver, +}; /** * vzRegister: @@ -4186,9 +4190,6 @@ vzRegister(void) /* Backward compatibility with Parallels domain type */ parallelsHypervisorDriver = vzHypervisorDriver; parallelsHypervisorDriver.name = "Parallels"; - parallelsConnectDriver = vzConnectDriver; - parallelsConnectDriver.hypervisorDriver = &parallelsHypervisorDriver; - parallelsConnectDriver.uriSchemes = (const char *[]){ "parallels", NULL }, if (virRegisterConnectDriver(&parallelsConnectDriver, true) < 0) return -1; -- 1.8.3.1

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[libvirt] [dbus PATCH 00/25] Introduce more Domain* APIs
by Katerina Koukiou 18 Apr '18

18 Apr '18

Katerina Koukiou (25): Implement GetControlInfo method for Domain Interface Implement SendKey method for Domain Interface Implement InjectNMI method for Domain Interface Implement BlockPeek metohd for Domain Interface Implement MemoryPeek method for Domain Interface Add AddIOThread method for Domain Interface Implement BlockCommit method for Domain Interface Implement BlockJobAbort method for Domain Interface Implement BlockPull method for Domain Interface Implement BlockRebase method for Domain Interface Implement BlockResize method for Domain Interface Implement CoreDumpWithFormat method for Domain Interface Implement DelIOThread method for Domain Interface Implement FSFreeze method for Domain Interface Implement FSThaw method for Domain Interface Implement FSTrim method for Domain Interface Implement MigrateStartPostCopy method for Domain Interface Implement PinEmulator method for Domain Interface Implement PinIOThread method for Domain Interface Implement Rename method for Domain Interface Implement DomainRestore method for Connect Interface Implement Save method for Domain Interface Implement DomainSaveImageDefineXML method for Connect Interface Implement SendProcessSignal method for Domain Interface Implement UpdateDevice method for Domain Interface data/org.libvirt.Connect.xml | 14 + data/org.libvirt.Domain.xml | 157 ++++++++++ src/connect.c | 52 ++++ src/domain.c | 723 +++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 946 insertions(+) -- 2.15.0

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[libvirt] [dbus PATCH] connect: remove unused domain variables
by Ján Tomko 18 Apr '18

18 Apr '18

Neither virDomainRestoreFlags nor virDomainSaveImageDefineXML take a virDomain argument. Remove the unused domain variables. Introduced by commits 1ce556b and 2597d41 respectively. Signed-off-by: Ján Tomko <jtomko(a)redhat.com> --- src/connect.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/src/connect.c b/src/connect.c index 8faaeaf..3a563bb 100644 --- a/src/connect.c +++ b/src/connect.c @@ -357,7 +357,6 @@ virtDBusConnectDomainRestoreFlags(GVariant *inArgs, GError **error) { virtDBusConnect *connect = userData; - g_autoptr(virDomain) domain = NULL; const gchar *from; const gchar *xml; guint flags; @@ -383,7 +382,6 @@ virtDBusConnectDomainSaveImageDefineXML(GVariant *inArgs, GError **error) { virtDBusConnect *connect = userData; - g_autoptr(virDomain) domain = NULL; const gchar *file; const gchar *xml; guint flags; -- 2.16.1

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[libvirt] [PATCH 0/6] Various disk-related fixes/cleanups
by Peter Krempa 18 Apr '18

18 Apr '18

noticed while doing blockdev work but didn't turn out to be relevant. Peter Krempa (6): conf: Make argument of virDomainDiskGetDriver const qemu: Move disk driver name validation into disk validation callback conf, qemu: Replace access to disk driver name with accessors conf: Punt 'driverName' back to disk definition structure conf: Disk 'shared' state is not guest ABI qemu: driver: Fix error message in qemuDomainBlockCommit src/conf/domain_conf.c | 20 ++++++++++---------- src/conf/domain_conf.h | 4 +++- src/qemu/qemu_command.c | 12 ------------ src/qemu/qemu_domain.c | 9 +++++++++ src/qemu/qemu_driver.c | 2 +- src/qemu/qemu_hotplug.c | 7 ------- src/qemu/qemu_parse_command.c | 2 +- src/util/virstoragefile.c | 6 ------ src/util/virstoragefile.h | 1 - 9 files changed, 24 insertions(+), 39 deletions(-) -- 2.16.2

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[libvirt] [PATCH] conf: Reindent virDomainObjCheckActive
by Jiri Denemark 18 Apr '18

18 Apr '18

Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- Pushed as trivial. src/conf/domain_conf.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index ae2135263e..5f1af911b7 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -6001,9 +6001,9 @@ int virDomainObjCheckActive(virDomainObjPtr dom) { if (!virDomainObjIsActive(dom)) { - virReportError(VIR_ERR_OPERATION_INVALID, - "%s", _("domain is not running")); - return -1; + virReportError(VIR_ERR_OPERATION_INVALID, + "%s", _("domain is not running")); + return -1; } return 0; } -- 2.17.0

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[libvirt] [PATCH v2 0/2] qemu: cpu: fix "full" CPU to include all "reported" CPU features
by Nikolay Shirokovskiy 18 Apr '18

18 Apr '18

diff from v1: - add test data for CPU for which issue was triggered Patch 1 adds tests for CPU on which problem was detected. However we don't test <cpu mode='host-model' check='partial'> case which have issue. Patch 2 is actual fix. Nikolay Shirokovskiy (2): cputest: New test for Intel Core i5-650 qemu: cpu: fix "full" CPU to include all "reported" CPU features src/qemu/qemu_capabilities.c | 12 +- tests/cputest.c | 1 + .../x86_64-cpuid-Core-i5-650-disabled.xml | 5 + .../x86_64-cpuid-Core-i5-650-enabled.xml | 7 + .../cputestdata/x86_64-cpuid-Core-i5-650-guest.xml | 24 + .../cputestdata/x86_64-cpuid-Core-i5-650-host.xml | 25 + .../cputestdata/x86_64-cpuid-Core-i5-650-json.xml | 12 + tests/cputestdata/x86_64-cpuid-Core-i5-650.json | 1068 ++++++++++++++++++++ tests/cputestdata/x86_64-cpuid-Core-i5-650.xml | 30 + 9 files changed, 1181 insertions(+), 3 deletions(-) create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i5-650-disabled.xml create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i5-650-enabled.xml create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i5-650-guest.xml create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i5-650-host.xml create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i5-650-json.xml create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i5-650.json create mode 100644 tests/cputestdata/x86_64-cpuid-Core-i5-650.xml -- 1.8.3.1

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[libvirt] [PATCH] qemuDomainObjPrivateDataClear: Don't leak @migParams
by Michal Privoznik 18 Apr '18

18 Apr '18

Allocated in qemuMigrationParamsNew() we need to free priv->job.migParams when no longer needed. ==8061== 234 (192 direct, 42 indirect) bytes in 1 blocks are definitely lost in loss record 112 of 123 ==8061== at 0x4C2CF26: calloc (vg_replace_malloc.c:711) ==8061== by 0x5325D05: virAlloc (viralloc.c:144) ==8061== by 0x1984F9: qemuMigrationParamsNew (qemu_migration_params.c:218) ==8061== by 0x19A352: qemuMigrationParamsParse (qemu_migration_params.c:1185) ==8061== by 0x1604D8: qemuDomainObjPrivateXMLParseJob (qemu_domain.c:2390) ==8061== by 0x160AE9: qemuDomainObjPrivateXMLParse (qemu_domain.c:2517) ==8061== by 0x5419EAE: virDomainObjParseXML (domain_conf.c:20442) ==8061== by 0x541A25E: virDomainObjParseNode (domain_conf.c:20555) ==8061== by 0x541A2FC: virDomainObjParseFile (domain_conf.c:20574) ==8061== by 0x13607D: testCompareStatusXMLToXMLFiles (qemuxml2xmltest.c:75) ==8061== by 0x14F3E8: virTestRun (testutils.c:180) ==8061== by 0x14DCD0: mymain (qemuxml2xmltest.c:1200) Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/qemu/qemu_domain.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index 672f08b442..47595e244a 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -1895,6 +1895,8 @@ qemuDomainObjPrivateDataClear(qemuDomainObjPrivatePtr priv) virBitmapFree(priv->migrationCaps); priv->migrationCaps = NULL; + + qemuMigrationParamsFree(priv->job.migParams); } -- 2.16.1

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[libvirt] [PATCH] news: Xen: announce support for setting CPU features
by Jim Fehlig 18 Apr '18

18 Apr '18

Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- docs/news.xml | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/docs/news.xml b/docs/news.xml index a5c489151..dec3f134c 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -44,6 +44,18 @@ add this controller when traditional PCI devices are in use. </description> </change> + <change> + <summary> + Xen: Support setting CPU features for host-passthrough model + </summary> + <description> + The CPU model presented to Xen HVM domains is equivalent to libvirt's + host-passthrough model, although individual features can be enabled + and disabled via the cpuid setting. The libvirt libxl driver now + supports enabling and disabling individual features of the + host-passthrough CPU model. + </description> + </change> </section> <section title="Removed features"> <change> -- 2.16.3

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[libvirt] [PATCH v2 0/9] Add function that raises error if domain is not active
by Clementine Hayat 18 Apr '18

18 Apr '18

This is my GSOC patch contribution. This change was suggested on BiteSizedTasks in the libvirt wiki[1]. in libvirt there is lots of occurences of this same pattern: if (!virDomainObjIsActive(vm)) { virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("domain is not running")); goto out; } This series replace these calls with a new function that check if the domain is active and log directly the error. This allows to remove almost 300 lines of code in the code base. [1] https://wiki.libvirt.org/page/BiteSizedTasks#Add_function_that_raises_error… Changes since v2: * renamed virDomainObjCheckIsActive into virDomainObjCheckActive * add the remaining occurences Clementine Hayat (9): Add function that raises error if domain is not active qemu: start using virDomainObjCheckActive test: start using virDomainObjCheckActive libxl: start using virDomainObjCheckActive bhyve: start using virDomainObjCheckActive lxc: start using virDomainObjCheckActive openvz: start using virDomainObjCheckActive uml: start using virDomainObjCheckActive vz: start using virDomainObjCheckActive src/bhyve/bhyve_driver.c | 20 +-- src/conf/domain_conf.c | 11 ++ src/conf/domain_conf.h | 2 + src/libvirt_private.syms | 1 + src/libxl/libxl_driver.c | 97 +++---------- src/lxc/lxc_driver.c | 60 ++------ src/openvz/openvz_driver.c | 20 +-- src/qemu/qemu_domain.c | 5 +- src/qemu/qemu_driver.c | 271 ++++++++----------------------------- src/test/test_driver.c | 35 +---- src/uml/uml_driver.c | 5 +- src/vz/vz_driver.c | 5 +- 12 files changed, 120 insertions(+), 412 deletions(-) -- 2.17.0

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