https://bugzilla.redhat.com/show_bug.cgi?id=1170492 In one of our previous commits (dc8b7ce7) we've obsoleted <cputune/> in favor of <numatune/> and others. If old element was passed it was basically ignored and interesting settings were copied from the new one. Well with one exception we'd forgotten about: emulatorpin. Imagine that domain is configured as follows: <vcpu placement='static' current='2'>6</vcpu> <cputune> <emulatorpin cpuset='1-3'/> </cputune> This is perfectly valid as only old style elements are used. However, adding new style elements messes up the XML: <vcpu placement='auto' current='2'>6</vcpu> <cputune> <emulatorpin cpuset='1-3'/> </cputune> <numatune> <memory mode='strict' placement='auto'/> </numatune> Since <numatune/> is auto, <vcpu/> becomes auto as well. However in that case we can't guarantee that emulator will be pinned onto selected nodes. Signed-off-by: Michal Privoznik <mprivozn@xxxxxxxxxx> --- src/conf/domain_conf.c | 12 +++++++- .../qemuxml2argv-cputune-numatune.xml | 35 ++++++++++++++++++++++ .../qemuxml2xmlout-cputune-numatune.xml | 32 ++++++++++++++++++++ tests/qemuxml2xmltest.c | 1 + 4 files changed, 79 insertions(+), 1 deletion(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-cputune-numatune.xml create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-cputune-numatune.xml diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 8792f5e..0b8af6d 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -13173,8 +13173,18 @@ virDomainDefParseXML(xmlDocPtr xml, ctxt) < 0) goto error; - if (virDomainNumatuneHasPlacementAuto(def->numatune) && !def->cpumask) + if (virDomainNumatuneHasPlacementAuto(def->numatune) && !def->cpumask) { + /* If numatune is used, it obsoletes some older settings + * like /domain/vcpu/@placement or + * /domain/cputune/emulatorpin. For more info see comment + * a few lines above where emulatorpin is parsed. */ def->placement_mode = VIR_DOMAIN_CPU_PLACEMENT_MODE_AUTO; + if (def->cputune.emulatorpin) { + VIR_WARN("Ignore emulatorpin for <numatune> placement is 'auto'"); + virDomainVcpuPinDefFree(def->cputune.emulatorpin); + def->cputune.emulatorpin = NULL; + } + } if ((n = virXPathNodeSet("./resource", ctxt, &nodes)) < 0) { virReportError(VIR_ERR_INTERNAL_ERROR, diff --git a/tests/qemuxml2argvdata/qemuxml2argv-cputune-numatune.xml b/tests/qemuxml2argvdata/qemuxml2argv-cputune-numatune.xml new file mode 100644 index 0000000..9759b48 --- /dev/null +++ b/tests/qemuxml2argvdata/qemuxml2argv-cputune-numatune.xml @@ -0,0 +1,35 @@ +<domain type='kvm'> + <name>dummy2</name> + <uuid>4d92ec27-9ebf-400b-ae91-20c71c647c19</uuid> + <memory unit='KiB'>131072</memory> + <currentMemory unit='KiB'>65536</currentMemory> + <vcpu placement='auto' current='2'>6</vcpu> + <cputune> + <emulatorpin cpuset='1-3'/> + </cputune> + <numatune> + <memory mode='strict' placement='auto'/> + </numatune> + <os> + <type arch='x86_64' machine='pc-q35-2.3'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-x86_64</emulator> + <controller type='sata' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/> + </controller> + <controller type='pci' index='0' model='pcie-root'/> + <controller type='pci' index='1' model='dmi-to-pci-bridge'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/> + </controller> + <controller type='pci' index='2' model='pci-bridge'> + <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/> + </controller> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-cputune-numatune.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-cputune-numatune.xml new file mode 100644 index 0000000..b33f57f --- /dev/null +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-cputune-numatune.xml @@ -0,0 +1,32 @@ +<domain type='kvm'> + <name>dummy2</name> + <uuid>4d92ec27-9ebf-400b-ae91-20c71c647c19</uuid> + <memory unit='KiB'>131072</memory> + <currentMemory unit='KiB'>65536</currentMemory> + <vcpu placement='auto' current='2'>6</vcpu> + <numatune> + <memory mode='strict' placement='auto'/> + </numatune> + <os> + <type arch='x86_64' machine='pc-q35-2.3'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-x86_64</emulator> + <controller type='sata' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/> + </controller> + <controller type='pci' index='0' model='pcie-root'/> + <controller type='pci' index='1' model='dmi-to-pci-bridge'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/> + </controller> + <controller type='pci' index='2' model='pci-bridge'> + <address type='pci' domain='0x0000' bus='0x01' slot='0x01' function='0x0'/> + </controller> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 4abb303..9ceda58 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -310,6 +310,7 @@ mymain(void) DO_TEST("blkiotune-device"); DO_TEST("cputune"); DO_TEST("cputune-zero-shares"); + DO_TEST_DIFFERENT("cputune-numatune"); DO_TEST("smp"); DO_TEST("iothreads"); -- 2.0.5 -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list