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[libvirt] [PATCH] domain_conf: Use virDomainParseMemory more widely
by Michal Privoznik 07 Nov '14

07 Nov '14

As reviewing patches upstream it occurred to me, that we have two functions doing nearly the same: virDomainParseMemory which expects XML in the following format: <memory unit='MiB'>1337</memory> The other function being virDomainHugepagesParseXML expecting the following format: <someElement memory='1337' unit='MiB'/> It wouldn't matter to have two functions handle two different scenarios like this if we could only not copy code that handles 32bit arches around. So this code merges the common parts into one by inventing new @units_xpath argument to virDomainParseMemory which allows overriding the default location of @unit attribute in XML. With this change both scenarios above can be parsed with virDomainParseMemory. Sweet. Of course, everything is commented as it should be. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/conf/domain_conf.c | 137 +++++++++++++++++++++++++++++-------------------- 1 file changed, 80 insertions(+), 57 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 21309b0..e097af7 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -6318,14 +6318,30 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt, goto cleanup; } - -/* Parse a value located at XPATH within CTXT, and store the - * result into val. If REQUIRED, then the value must exist; - * otherwise, the value is optional. The value is in bytes. - * Return 1 on success, 0 if the value was not present and - * is not REQUIRED, -1 on failure after issuing error. */ +/** + * virDomainParseScaledValue: + * @bytes_xpath: XPath to memory amount + * @units_xpath: XPath to units attribute + * @ctxt: XPath context + * @val: scaled value is stored here + * @scale: default scale for @val + * @max: maximal @val allowed + * @required: is the value required? + * + * Parse a value located at @bytes_xpath within @ctxt, and store + * the result into @val. By default, if @units_xpath is NULL the + * unit attribute must be an attribute to @bytes_xpath. + * Otherwise, the unit attribute is looked for under specified + * path. If @required is set, then the value must exist; + * otherwise, the value is optional. The value is in bytes. + * + * Returns 1 on success, + * 0 if the value was not present and !@required, + * -1 on failure after issuing error. + */ static int -virDomainParseScaledValue(const char *xpath, +virDomainParseScaledValue(const char *bytes_xpath, + const char *units_xpath, xmlXPathContextPtr ctxt, unsigned long long *val, unsigned long long scale, @@ -6339,7 +6355,7 @@ virDomainParseScaledValue(const char *xpath, unsigned long long bytes; *val = 0; - if (virAsprintf(&xpath_full, "string(%s)", xpath) < 0) + if (virAsprintf(&xpath_full, "string(%s)", bytes_xpath) < 0) goto cleanup; bytes_str = virXPathString(xpath_full, ctxt); @@ -6348,8 +6364,8 @@ virDomainParseScaledValue(const char *xpath, ret = 0; } else { virReportError(VIR_ERR_XML_ERROR, - _("missing element %s"), - xpath); + _("missing element or attribute '%s'"), + bytes_xpath); } goto cleanup; } @@ -6357,12 +6373,15 @@ virDomainParseScaledValue(const char *xpath, if (virStrToLong_ullp(bytes_str, NULL, 10, &bytes) < 0) { virReportError(VIR_ERR_XML_ERROR, - _("Invalid value '%s' for element '%s'"), - bytes_str, xpath); + _("Invalid value '%s' for element or attribute '%s'"), + bytes_str, bytes_xpath); goto cleanup; } - if (virAsprintf(&xpath_full, "string(%s/@unit)", xpath) < 0) + if ((units_xpath && + virAsprintf(&xpath_full, "string(%s)", units_xpath) < 0) || + (!units_xpath && + virAsprintf(&xpath_full, "string(%s/@unit)", bytes_xpath) < 0)) goto cleanup; unit = virXPathString(xpath_full, ctxt); @@ -6379,17 +6398,35 @@ virDomainParseScaledValue(const char *xpath, } -/* Parse a memory element located at XPATH within CTXT, and store the - * result into MEM, in blocks of 1024. If REQUIRED, then the value - * must exist; otherwise, the value is optional. The value must not - * exceed VIR_DOMAIN_MEMORY_PARAM_UNLIMITED once scaled; additionally, - * if CAPPED is true, the value must fit within an unsigned long (only - * matters on 32-bit platforms). +/** + * virDomainParseMemory: + * @bytes_xpath: XPath to memory amount + * @units_xpath: XPath to units attribute + * @ctxt: XPath context + * @mem: scaled memory amount is stored here + * @required: whether value is required + * @capped: whether scaled value must fit within unsigned long * - * Return 0 on success, -1 on failure after issuing error. */ + * Parse a memory element or attribute located at @bytes_xpath + * within @ctxt, and store the result into @mem, in blocks of + * 1024. By default, if @units_xpath is NULL the unit attribute + * must be an attribute to @bytes_xpath. Otherwise, the unit + * attribute is looked for under specified path. If @required is + * set, then the value must exist; otherwise, the value is + * optional. The value must not exceed + * VIR_DOMAIN_MEMORY_PARAM_UNLIMITED once scaled; additionally, + * if @capped is true, the value must fit within an unsigned long + * (only matters on 32-bit platforms). + * + * Return 0 on success, -1 on failure after issuing error. + */ static int -virDomainParseMemory(const char *xpath, xmlXPathContextPtr ctxt, - unsigned long long *mem, bool required, bool capped) +virDomainParseMemory(const char *bytes_xpath, + const char *units_xpath, + xmlXPathContextPtr ctxt, + unsigned long long *mem, + bool required, + bool capped) { int ret = -1; unsigned long long bytes, max; @@ -6401,7 +6438,8 @@ virDomainParseMemory(const char *xpath, xmlXPathContextPtr ctxt, else max = LLONG_MAX; - ret = virDomainParseScaledValue(xpath, ctxt, &bytes, 1024, max, required); + ret = virDomainParseScaledValue(bytes_xpath, units_xpath, ctxt, + &bytes, 1024, max, required); if (ret < 0) goto cleanup; @@ -6585,8 +6623,8 @@ virDomainControllerDefParseXML(xmlNodePtr node, "should have index 0")); goto error; } - if ((rc = virDomainParseScaledValue("./pcihole64", ctxt, - &bytes, 1024, + if ((rc = virDomainParseScaledValue("./pcihole64", NULL, + ctxt, &bytes, 1024, 1024ULL * ULONG_MAX, false)) < 0) goto error; @@ -6684,14 +6722,14 @@ virDomainFSDefParseXML(xmlNodePtr node, def->accessmode = VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH; } - if (virDomainParseScaledValue("./space_hard_limit[1]", ctxt, - &def->space_hard_limit, 1, - ULLONG_MAX, false) < 0) + if (virDomainParseScaledValue("./space_hard_limit[1]", + NULL, ctxt, &def->space_hard_limit, + 1, ULLONG_MAX, false) < 0) goto error; - if (virDomainParseScaledValue("./space_soft_limit[1]", ctxt, - &def->space_soft_limit, 1, - ULLONG_MAX, false) < 0) + if (virDomainParseScaledValue("./space_soft_limit[1]", + NULL, ctxt, &def->space_soft_limit, + 1, ULLONG_MAX, false) < 0) goto error; cur = node->children; @@ -9824,8 +9862,8 @@ virDomainShmemDefParseXML(xmlNodePtr node, goto cleanup; } - if (virDomainParseScaledValue("./size[1]", ctxt, &def->size, - 1, ULLONG_MAX, false) < 0) + if (virDomainParseScaledValue("./size[1]", NULL, ctxt, + &def->size, 1, ULLONG_MAX, false) < 0) goto cleanup; if ((server = virXPathNode("./server[1]", ctxt))) { @@ -11965,30 +12003,15 @@ virDomainHugepagesParseXML(xmlNodePtr node, { int ret = -1; xmlNodePtr oldnode = ctxt->node; - unsigned long long bytes, max; char *unit = NULL, *nodeset = NULL; ctxt->node = node; - /* On 32-bit machines, our bound is 0xffffffff * KiB. On 64-bit - * machines, our bound is off_t (2^63). */ - if (sizeof(unsigned long) < sizeof(long long)) - max = 1024ull * ULONG_MAX; - else - max = LLONG_MAX; - - if (virXPathULongLong("string(./@size)", ctxt, &bytes) < 0) { - virReportError(VIR_ERR_XML_DETAIL, "%s", - _("unable to parse size attribute")); - goto cleanup; - } - - unit = virXPathString("string(./@unit)", ctxt); - - if (virScaleInteger(&bytes, unit, 1024, max) < 0) + if (virDomainParseMemory("./@size", "./@unit", ctxt, + &hugepage->size, true, false) < 0) goto cleanup; - if (!(hugepage->size = VIR_DIV_UP(bytes, 1024))) { + if (!hugepage->size) { virReportError(VIR_ERR_XML_DETAIL, "%s", _("hugepage size can't be zero")); goto cleanup; @@ -12225,11 +12248,11 @@ virDomainDefParseXML(xmlDocPtr xml, goto error; /* Extract domain memory */ - if (virDomainParseMemory("./memory[1]", ctxt, + if (virDomainParseMemory("./memory[1]", NULL, ctxt, &def->mem.max_balloon, true, true) < 0) goto error; - if (virDomainParseMemory("./currentMemory[1]", ctxt, + if (virDomainParseMemory("./currentMemory[1]", NULL, ctxt, &def->mem.cur_balloon, false, true) < 0) goto error; @@ -12349,19 +12372,19 @@ virDomainDefParseXML(xmlDocPtr xml, VIR_FREE(nodes); /* Extract other memory tunables */ - if (virDomainParseMemory("./memtune/hard_limit[1]", ctxt, + if (virDomainParseMemory("./memtune/hard_limit[1]", NULL, ctxt, &def->mem.hard_limit, false, false) < 0) goto error; - if (virDomainParseMemory("./memtune/soft_limit[1]", ctxt, + if (virDomainParseMemory("./memtune/soft_limit[1]", NULL, ctxt, &def->mem.soft_limit, false, false) < 0) goto error; - if (virDomainParseMemory("./memtune/min_guarantee[1]", ctxt, + if (virDomainParseMemory("./memtune/min_guarantee[1]", NULL, ctxt, &def->mem.min_guarantee, false, false) < 0) goto error; - if (virDomainParseMemory("./memtune/swap_hard_limit[1]", ctxt, + if (virDomainParseMemory("./memtune/swap_hard_limit[1]", NULL, ctxt, &def->mem.swap_hard_limit, false, false) < 0) goto error; -- 2.0.4

3 2

[libvirt] [PATCH 00/15] Cleanup some curly braces
by Martin Kletzander 07 Nov '14

07 Nov '14

5 25

[libvirt] [PATCH] Transform VIR_ERROR into VIR_WARN in detect_scsi_host_caps
by Cédric Bosdonnat 07 Nov '14

07 Nov '14

If detect_scsi_host_caps reports errors but keeps libvirtd going on startup, the user is mislead by the error messages. Transforming them into warning still shows the problems, but indicates this is not fatal. --- po/POTFILES.in | 1 - src/node_device/node_device_linux_sysfs.c | 22 +++++++++++----------- 2 files changed, 11 insertions(+), 12 deletions(-) diff --git a/po/POTFILES.in b/po/POTFILES.in index 89c6a44..1439ae4 100644 --- a/po/POTFILES.in +++ b/po/POTFILES.in @@ -92,7 +92,6 @@ src/network/bridge_driver_linux.c src/network/leaseshelper.c src/node_device/node_device_driver.c src/node_device/node_device_hal.c -src/node_device/node_device_linux_sysfs.c src/node_device/node_device_udev.c src/nodeinfo.c src/nwfilter/nwfilter_dhcpsnoop.c diff --git a/src/node_device/node_device_linux_sysfs.c b/src/node_device/node_device_linux_sysfs.c index be95e51..4a95b2b 100644 --- a/src/node_device/node_device_linux_sysfs.c +++ b/src/node_device/node_device_linux_sysfs.c @@ -62,7 +62,7 @@ detect_scsi_host_caps(union _virNodeDevCapData *d) d->scsi_host.host, "port_name", &d->scsi_host.wwpn) < 0) { - VIR_ERROR(_("Failed to read WWPN for host%d"), d->scsi_host.host); + VIR_WARN("Failed to read WWPN for host%d", d->scsi_host.host); goto cleanup; } @@ -70,7 +70,7 @@ detect_scsi_host_caps(union _virNodeDevCapData *d) d->scsi_host.host, "node_name", &d->scsi_host.wwnn) < 0) { - VIR_ERROR(_("Failed to read WWNN for host%d"), d->scsi_host.host); + VIR_WARN("Failed to read WWNN for host%d", d->scsi_host.host); goto cleanup; } @@ -78,8 +78,8 @@ detect_scsi_host_caps(union _virNodeDevCapData *d) d->scsi_host.host, "fabric_name", &d->scsi_host.fabric_wwn) < 0) { - VIR_ERROR(_("Failed to read fabric WWN for host%d"), - d->scsi_host.host); + VIR_WARN("Failed to read fabric WWN for host%d", + d->scsi_host.host); goto cleanup; } } @@ -91,8 +91,8 @@ detect_scsi_host_caps(union _virNodeDevCapData *d) d->scsi_host.host, "max_npiv_vports", &max_vports) < 0) { - VIR_ERROR(_("Failed to read max_npiv_vports for host%d"), - d->scsi_host.host); + VIR_WARN("Failed to read max_npiv_vports for host%d", + d->scsi_host.host); goto cleanup; } @@ -100,22 +100,22 @@ detect_scsi_host_caps(union _virNodeDevCapData *d) d->scsi_host.host, "npiv_vports_inuse", &vports) < 0) { - VIR_ERROR(_("Failed to read npiv_vports_inuse for host%d"), - d->scsi_host.host); + VIR_WARN("Failed to read npiv_vports_inuse for host%d", + d->scsi_host.host); goto cleanup; } if (virStrToLong_i(max_vports, NULL, 10, &d->scsi_host.max_vports) < 0) { - VIR_ERROR(_("Failed to parse value of max_npiv_vports '%s'"), + VIR_WARN("Failed to parse value of max_npiv_vports '%s'", max_vports); goto cleanup; } if (virStrToLong_i(vports, NULL, 10, &d->scsi_host.vports) < 0) { - VIR_ERROR(_("Failed to parse value of npiv_vports_inuse '%s'"), - vports); + VIR_WARN("Failed to parse value of npiv_vports_inuse '%s'", + vports); goto cleanup; } } -- 1.8.4.5

3 2

[libvirt] [PATCH v2] Memory : Allow specification of 'units' for numa nodes.
by Prerna Saxena 07 Nov '14

07 Nov '14

Reference : ======= v1: http://www.spinics.net/linux/fedora/libvir/msg105516.html Changes since v1: =========== 1) As suggested by Michal, a new function "virCPUNumaCellMemoryParseXML" has been introduced for neat computation of NUMA memory. 2) Patches 2 & 3 of v1 have been merged together into this cumulative patch. 3) Corresponding documentation added. >From 2199d97b88cf9eab29788fb0e440c4b0a0bb23ec Mon Sep 17 00:00:00 2001 From: Prerna Saxena <prerna(a)linux.vnet.ibm.com> Date: Mon, 3 Nov 2014 07:53:59 +0530 CPU numa topology implicitly allows memory specification in 'KiB'. Enabling this to accept the 'unit' in which memory needs to be specified. This now allows users to specify memory in units of choice, and lists the same in 'KiB' -- just like other 'memory' elements in XML. <numa> <cell cpus='0-3' memory='1024' unit='MiB' /> <cell cpus='4-7' memory='1024' unit='MiB' /> </numa> Also augment test cases to correctly model NUMA memory specification. This adds the tag 'unit="KiB"' for memory attribute in NUMA cells. Signed-off-by: Prerna Saxena <prerna(a)linux.vnet.ibm.com> --- docs/formatdomain.html.in | 6 ++- docs/schemas/domaincommon.rng | 5 ++ src/conf/cpu_conf.c | 62 ++++++++++++++++------ .../qemuxml2argv-cpu-numa-disjoint.xml | 4 +- .../qemuxml2argv-cpu-numa-memshared.xml | 4 +- tests/qemuxml2argvdata/qemuxml2argv-cpu-numa1.xml | 4 +- tests/qemuxml2argvdata/qemuxml2argv-cpu-numa2.xml | 4 +- tests/qemuxml2argvdata/qemuxml2argv-cpu-numa3.xml | 4 +- .../qemuxml2argv-hugepages-pages.xml | 8 +-- .../qemuxml2argv-hugepages-pages2.xml | 4 +- .../qemuxml2argv-hugepages-pages3.xml | 4 +- .../qemuxml2argv-hugepages-pages4.xml | 8 +-- .../qemuxml2argv-hugepages-shared.xml | 8 +-- .../qemuxml2argv-numatune-auto-prefer.xml | 2 +- .../qemuxml2argv-numatune-memnode-no-memory.xml | 4 +- .../qemuxml2argv-numatune-memnode.xml | 6 +-- .../qemuxml2argv-numatune-memnodes-problematic.xml | 4 +- .../qemuxml2xmlout-cpu-numa1.xml | 4 +- .../qemuxml2xmlout-cpu-numa2.xml | 4 +- .../qemuxml2xmlout-numatune-auto-prefer.xml | 2 +- .../qemuxml2xmlout-numatune-memnode.xml | 6 +-- 21 files changed, 97 insertions(+), 60 deletions(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 0099ce7..24afc87 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1140,8 +1140,8 @@ <cpu> ... <numa> - <cell id='0' cpus='0-3' memory='512000'/> - <cell id='1' cpus='4-7' memory='512000' memAccess='shared'/> + <cell id='0' cpus='0-3' memory='512000' unit='KiB'/> + <cell id='1' cpus='4-7' memory='512000' unit='KiB' memAccess='shared'/> </numa> ... </cpu> @@ -1152,6 +1152,8 @@ <code>cpus</code> specifies the CPU or range of CPUs that are part of the node. <code>memory</code> specifies the node memory in kibibytes (i.e. blocks of 1024 bytes). + <span class="since">Since 1.2.11</span> one can specify an additional + <code>unit</code> attribute to describe the node memory unit. <span class="since">Since 1.2.7</span> all cells should have <code>id</code> attribute in case referring to some cell is necessary in the code, otherwise the cells are diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index 20d81ae..44cabad 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -4144,6 +4144,11 @@ <ref name="memoryKB"/> </attribute> <optional> + <attribute name="unit"> + <ref name="unit"/> + </attribute> + </optional> + <optional> <attribute name="memAccess"> <choice> <value>shared</value> diff --git a/src/conf/cpu_conf.c b/src/conf/cpu_conf.c index 5475c07..a0a60c8 100644 --- a/src/conf/cpu_conf.c +++ b/src/conf/cpu_conf.c @@ -177,6 +177,48 @@ virCPUDefCopy(const virCPUDef *cpu) return NULL; } +static int +virCPUNumaCellMemoryParseXML(xmlNodePtr node, + xmlXPathContextPtr ctxt, + unsigned long long* cellMemory) +{ + int ret = -1; + xmlNodePtr oldnode = ctxt->node; + unsigned long long bytes, max; + char *unit = NULL; + + ctxt->node = node; + + /* 32 vs 64 bit will differ in value of upper memory bound. + * On 32-bit machines, our bound is 0xffffffff * KiB. On 64-bit + * machines, our bound is off_t (2^63). + */ + if (sizeof(unsigned long) < sizeof(long long)) + max = 1024ull * ULONG_MAX; + else + max = LLONG_MAX; + + if (virXPathULongLong("string(./@memory)", ctxt, &bytes) < 0) { + virReportError(VIR_ERR_XML_DETAIL, "%s", + _("unable to parse memory size attribute")); + goto cleanup; + } + + unit = virXPathString("string(./@unit)", ctxt); + + if (virScaleInteger(&bytes, unit, 1024, max) < 0) + goto cleanup; + + *cellMemory = VIR_DIV_UP(bytes, 1024); + + ret = 0; + cleanup: + VIR_FREE(unit); + ctxt->node = oldnode; + return ret; + +} + virCPUDefPtr virCPUDefParseXML(xmlNodePtr node, xmlXPathContextPtr ctxt, @@ -440,7 +482,7 @@ virCPUDefParseXML(xmlNodePtr node, def->ncells = n; for (i = 0; i < n; i++) { - char *cpus, *memory, *memAccessStr; + char *cpus, *memAccessStr; int ret, ncpus = 0; unsigned int cur_cell; char *tmp = NULL; @@ -489,21 +531,8 @@ virCPUDefParseXML(xmlNodePtr node, goto error; def->cells_cpus += ncpus; - memory = virXMLPropString(nodes[i], "memory"); - if (!memory) { - virReportError(VIR_ERR_XML_ERROR, "%s", - _("Missing 'memory' attribute in NUMA cell")); - goto error; - } - - ret = virStrToLong_ull(memory, NULL, 10, &def->cells[cur_cell].mem); - if (ret == -1) { - virReportError(VIR_ERR_XML_ERROR, "%s", - _("Invalid 'memory' attribute in NUMA cell")); - VIR_FREE(memory); - goto error; - } - VIR_FREE(memory); + virCPUNumaCellMemoryParseXML(nodes[i], + ctxt, &def->cells[cur_cell].mem); memAccessStr = virXMLPropString(nodes[i], "memAccess"); if (memAccessStr) { @@ -703,6 +732,7 @@ virCPUDefFormatBuf(virBufferPtr buf, virBufferAsprintf(buf, " id='%zu'", i); virBufferAsprintf(buf, " cpus='%s'", def->cells[i].cpustr); virBufferAsprintf(buf, " memory='%llu'", def->cells[i].mem); + virBufferAddLit(buf, " unit='KiB'"); if (memAccess) virBufferAsprintf(buf, " memAccess='%s'", virMemAccessTypeToString(memAccess)); diff --git a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-disjoint.xml b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-disjoint.xml index 474a238..bdffcd1 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-disjoint.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-disjoint.xml @@ -11,8 +11,8 @@ <cpu> <topology sockets='2' cores='4' threads='2'/> <numa> - <cell id='0' cpus='0-3,8-11' memory='109550'/> - <cell id='1' cpus='4-7,12-15' memory='109550'/> + <cell id='0' cpus='0-3,8-11' memory='109550' unit='KiB'/> + <cell id='1' cpus='4-7,12-15' memory='109550' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.xml b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.xml index cf7c040..c638ffa 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa-memshared.xml @@ -11,8 +11,8 @@ <cpu> <topology sockets='2' cores='4' threads='2'/> <numa> - <cell id='0' cpus='0-7' memory='109550' memAccess='shared'/> - <cell id='1' cpus='8-15' memory='109550' memAccess='private'/> + <cell id='0' cpus='0-7' memory='109550' unit='KiB' memAccess='shared'/> + <cell id='1' cpus='8-15' memory='109550' unit='KiB' memAccess='private'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa1.xml b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa1.xml index 0543f7f..20120e9 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa1.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa1.xml @@ -11,8 +11,8 @@ <cpu> <topology sockets='2' cores='4' threads='2'/> <numa> - <cell cpus='0-7' memory='109550'/> - <cell cpus='8-15' memory='109550'/> + <cell cpus='0-7' memory='109550' unit='KiB'/> + <cell cpus='8-15' memory='109550' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa2.xml b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa2.xml index 0a5f9fc..a90e7a2 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa2.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa2.xml @@ -11,8 +11,8 @@ <cpu> <topology sockets='2' cores='4' threads='2'/> <numa> - <cell id='1' cpus='8-15' memory='109550'/> - <cell id='0' cpus='0-7' memory='109550'/> + <cell id='1' cpus='8-15' memory='109550' unit='KiB'/> + <cell id='0' cpus='0-7' memory='109550' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa3.xml b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa3.xml index fa3070d..ea2dc81 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa3.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-cpu-numa3.xml @@ -11,8 +11,8 @@ <cpu> <topology sockets='2' cores='4' threads='2'/> <numa> - <cell id='1' cpus='0-7' memory='109550'/> - <cell id='2' cpus='8-15' memory='109550'/> + <cell id='1' cpus='0-7' memory='109550' unit='KiB'/> + <cell id='2' cpus='8-15' memory='109550' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages.xml b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages.xml index 5ad0695..b67df2f 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages.xml @@ -20,10 +20,10 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='1048576'/> - <cell id='1' cpus='1' memory='1048576'/> - <cell id='2' cpus='2' memory='1048576'/> - <cell id='3' cpus='3' memory='1048576'/> + <cell id='0' cpus='0' memory='1048576' unit='KiB'/> + <cell id='1' cpus='1' memory='1048576' unit='KiB'/> + <cell id='2' cpus='2' memory='1048576' unit='KiB'/> + <cell id='3' cpus='3' memory='1048576' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages2.xml b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages2.xml index 3df870b..6afa6ef 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages2.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages2.xml @@ -15,8 +15,8 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='262144'/> - <cell id='1' cpus='1' memory='786432'/> + <cell id='0' cpus='0' memory='262144' unit='KiB'/> + <cell id='1' cpus='1' memory='786432' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages3.xml b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages3.xml index 35aa2cf..21f4985 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages3.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages3.xml @@ -15,8 +15,8 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='262144'/> - <cell id='1' cpus='1' memory='786432'/> + <cell id='0' cpus='0' memory='262144' unit='KiB'/> + <cell id='1' cpus='1' memory='786432' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages4.xml b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages4.xml index a3ed29b..eb18f24 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages4.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-pages4.xml @@ -20,10 +20,10 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='1048576'/> - <cell id='1' cpus='1' memory='1048576'/> - <cell id='2' cpus='2' memory='1048576'/> - <cell id='3' cpus='3' memory='1048576'/> + <cell id='0' cpus='0' memory='1048576' unit='KiB'/> + <cell id='1' cpus='1' memory='1048576' unit='KiB'/> + <cell id='2' cpus='2' memory='1048576' unit='KiB'/> + <cell id='3' cpus='3' memory='1048576' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-shared.xml b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-shared.xml index e7db69c..52ca2f9 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-hugepages-shared.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-hugepages-shared.xml @@ -20,10 +20,10 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='1048576'/> - <cell id='1' cpus='1' memory='1048576' memAccess='shared'/> - <cell id='2' cpus='2' memory='1048576' memAccess='private'/> - <cell id='3' cpus='3' memory='1048576'/> + <cell id='0' cpus='0' memory='1048576' unit='KiB'/> + <cell id='1' cpus='1' memory='1048576' unit='KiB' memAccess='shared'/> + <cell id='2' cpus='2' memory='1048576' unit='KiB' memAccess='private'/> + <cell id='3' cpus='3' memory='1048576' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-numatune-auto-prefer.xml b/tests/qemuxml2argvdata/qemuxml2argv-numatune-auto-prefer.xml index 63f0d1f..8f80962 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-numatune-auto-prefer.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-numatune-auto-prefer.xml @@ -13,7 +13,7 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='65536'/> + <cell id='0' cpus='0' memory='65536' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode-no-memory.xml b/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode-no-memory.xml index 4b2efa2..886a07a 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode-no-memory.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode-no-memory.xml @@ -13,8 +13,8 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='32768'/> - <cell id='1' cpus='1' memory='32768'/> + <cell id='0' cpus='0' memory='32768' unit='KiB'/> + <cell id='1' cpus='1' memory='32768' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode.xml b/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode.xml index 440413b..8912017 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnode.xml @@ -15,9 +15,9 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='20002'/> - <cell id='1' cpus='1-27,29' memory='660066'/> - <cell id='2' cpus='28-31,^29' memory='24002400'/> + <cell id='0' cpus='0' memory='20002' unit='KiB'/> + <cell id='1' cpus='1-27,29' memory='660066' unit='KiB'/> + <cell id='2' cpus='28-31,^29' memory='24002400' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnodes-problematic.xml b/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnodes-problematic.xml index bb4e4af..e1d115c 100644 --- a/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnodes-problematic.xml +++ b/tests/qemuxml2argvdata/qemuxml2argv-numatune-memnodes-problematic.xml @@ -14,8 +14,8 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='32768'/> - <cell id='1' cpus='1' memory='32768'/> + <cell id='0' cpus='0' memory='32768' unit='KiB'/> + <cell id='1' cpus='1' memory='32768' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa1.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa1.xml index 227bf1c..58f40b9 100644 --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa1.xml +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa1.xml @@ -11,8 +11,8 @@ <cpu> <topology sockets='2' cores='4' threads='2'/> <numa> - <cell id='0' cpus='0-7' memory='109550'/> - <cell id='1' cpus='8-15' memory='109550'/> + <cell id='0' cpus='0-7' memory='109550' unit='KiB'/> + <cell id='1' cpus='8-15' memory='109550' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa2.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa2.xml index 227bf1c..58f40b9 100644 --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa2.xml +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-cpu-numa2.xml @@ -11,8 +11,8 @@ <cpu> <topology sockets='2' cores='4' threads='2'/> <numa> - <cell id='0' cpus='0-7' memory='109550'/> - <cell id='1' cpus='8-15' memory='109550'/> + <cell id='0' cpus='0-7' memory='109550' unit='KiB'/> + <cell id='1' cpus='8-15' memory='109550' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-auto-prefer.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-auto-prefer.xml index 19761b4..1000e9f 100644 --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-auto-prefer.xml +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-auto-prefer.xml @@ -13,7 +13,7 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='65536'/> + <cell id='0' cpus='0' memory='65536' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-memnode.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-memnode.xml index 82b5f61..ffc57cf 100644 --- a/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-memnode.xml +++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-numatune-memnode.xml @@ -15,9 +15,9 @@ </os> <cpu> <numa> - <cell id='0' cpus='0' memory='20002'/> - <cell id='1' cpus='1-27,29' memory='660066'/> - <cell id='2' cpus='28-31,^29' memory='24002400'/> + <cell id='0' cpus='0' memory='20002' unit='KiB'/> + <cell id='1' cpus='1-27,29' memory='660066' unit='KiB'/> + <cell id='2' cpus='28-31,^29' memory='24002400' unit='KiB'/> </numa> </cpu> <clock offset='utc'/> -- 1.9.3 -- Prerna Saxena Linux Technology Centre, IBM Systems and Technology Lab, Bangalore, India

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[libvirt] is there a notification when watchdog triggers?
by Chris Friesen 07 Nov '14

07 Nov '14

The libvirt.org docs say "A virtual hardware watchdog device can be added to the guest via the watchdog element....Currently libvirt does not support notification when the watchdog fires. This feature is planned for a future version of libvirt." Is that still accurate? Or does libvirt now support notifications? Chris

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[libvirt] [PATCH] qemu: don't setup cpuset.mems if memory mode in numatune is 'preferred'
by Wang Rui 07 Nov '14

07 Nov '14

If the memory mode is specified as preferred, we get the following error when starting domain. error: Unable to write to '$my_cgroup_path/cpuset.mems': Device or resource busy XML is configured with numatune as follows: <numatune> <memory mode='preferred' nodeset='0'/> </numatune> If memory mode is 'preferred', cpuset.mems in cgroup shouldn't be set to 'nodeset'. I find that maybe commit 1a7be8c600905aa07ac2d78293336ba8523ad48e changes the former logic of checking mode in virDomainNumatuneGetNodeset. Signed-off-by: Wang Rui <moon.wangrui(a)huawei.com> --- src/qemu/qemu_cgroup.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/qemu/qemu_cgroup.c b/src/qemu/qemu_cgroup.c index b5bdb36..8685d6f 100644 --- a/src/qemu/qemu_cgroup.c +++ b/src/qemu/qemu_cgroup.c @@ -618,6 +618,11 @@ qemuSetupCpusetMems(virDomainObjPtr vm, if (!virCgroupHasController(priv->cgroup, VIR_CGROUP_CONTROLLER_CPUSET)) return 0; + if (virDomainNumatuneGetMode(vm->def->numatune, -1) != + VIR_DOMAIN_NUMATUNE_MEM_STRICT) { + return 0; + } + if (virDomainNumatuneMaybeFormatNodeset(vm->def->numatune, nodemask, &mem_mask, -1) < 0) -- 1.7.12.4

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[libvirt] [PATCH] virnuma: add notset NULL check in virNumaSetupMemoryPolicy
by Chen Fan 07 Nov '14

07 Nov '14

introduce by commit c63ef0452b, when nodeset is NULL, validation will pass in virNumaSetupMemoryPolicy, but virBitmapNextSetBit must ensure bitmap is not Null. there will cause a segmentation fault. this patch fixed it. Signed-off-by: Chen Fan <chen.fan.fnst(a)cn.fujitsu.com> --- src/util/virnuma.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/src/util/virnuma.c b/src/util/virnuma.c index 06520f7..b8d76f4 100644 --- a/src/util/virnuma.c +++ b/src/util/virnuma.c @@ -97,6 +97,9 @@ virNumaSetupMemoryPolicy(virDomainNumatuneMemMode mode, size_t i; int maxnode = 0; + if (!nodeset) + return 0; + if (!virNumaNodesetIsAvailable(nodeset)) return -1; -- 1.9.3

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[libvirt] [v2 PATCH] doc: Fix a mismatch attribute name
by Luyao Huang 07 Nov '14

07 Nov '14

>From virAccessDriverPolkitCheckInterface function, we know this attribute should named: interface_macaddr Signed-off-by: Luyao Huang <lhuang(a)redhat.com> --- docs/aclpolkit.html.in | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/docs/aclpolkit.html.in b/docs/aclpolkit.html.in index 91b5296..e5a9b16 100644 --- a/docs/aclpolkit.html.in +++ b/docs/aclpolkit.html.in @@ -121,7 +121,7 @@ <td>Name of the network interface, unique to the local host</td> </tr> <tr> - <td>interface_mac</td> + <td>interface_macaddr</td> <td>MAC address of the network interface, not unique</td> </tr> </tbody> -- 1.8.3.1

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[libvirt] [PATCH] Fix a mismatch attribute name
by Luyao Huang 07 Nov '14

07 Nov '14

>From libvirt.org we know this attribute named: interface_mac MAC address of the network interface, not unique Signed-off-by: Luyao Huang <lhuang(a)redhat.com> --- src/access/viraccessdriverpolkit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/access/viraccessdriverpolkit.c b/src/access/viraccessdriverpolkit.c index 3136be7..0e07053 100644 --- a/src/access/viraccessdriverpolkit.c +++ b/src/access/viraccessdriverpolkit.c @@ -206,7 +206,7 @@ virAccessDriverPolkitCheckInterface(virAccessManagerPtr manager, const char *attrs[] = { "connect_driver", driverName, "interface_name", iface->name, - "interface_macaddr", iface->mac, + "interface_mac", iface->mac, NULL, }; -- 1.8.3.1

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[libvirt] [Patch v6 0/5] Libvirt CPU enhancements for Power KVM
by Prerna Saxena 07 Nov '14

07 Nov '14

This patch series is a collection of enhancements for PowerPC CPUs on PowerKVM. The v5 of this series has been acked. I have just rebased the patches on top of latest master and added a testcase. Series Summary: ========== Patch 1/5 : Introduce a new architecture 'ppc64le' for libvirt. Patch 2/5 : Add libvirt support for VMs running in 'compat' mode on Power KVM. Patch 3/5 : Improve PVR handling to fall back to cpu generation. Patch 4/5 : Add documentation describing compat mode usage for PowerPC guests. Patch 5/5 : Add a test case for compat mode. Detail: ==== * PowerPC has traditionally been a Big-endian architecture. However, with PowerPC ISA version 2.07, it can run in Little-endian mode as well. IBM Power8 processors, compliant with ISA 2.07 allow launching VMs in little-endian mode. This is signified by 'ppc64le' architecture. Patch 1 adds this support to libvirt, to allow running VMs based on ppc64le architecture. * Patch 2,3 tweak libvirt to correctly model PowerPC CPUs based on recent PowerKVM implementation. PowerKVM permits VMs with vcpus in the following allowed modes : i) Host native mode: where the vcpu seen in the VM belongs to the same processor generation as the host. Example: A POWER7 host, conforming to PowerISA version 2.06, will run VMs with "power7" vcpus. ii) Binary Compatibility ("compat") mode: PowerISA allows processors to run VMs in binary compatibility ("compat") mode supporting an older version of ISA. As an example: In compatibility mode, a POWER7 host can run a "power6" VM, conforming to power ISA v2.05. Similarly, a POWER8 host can run a "power7" VM conforming to PowerISA v2.06. QEMU has recently added support to explicitly denote a VM running in compatibility mode through commits 6d9412ea & 8dfa3a5e85. Henceforth, VMs of type (i) will be invoked with the QEMU invocation "-cpu host", while VMs of type (ii) will be invoked using "-cpu host, compat=power6". Now, an explicit cpu selection using "-cpu POWER6" is not valid. Instead, the recommended practice is to use the matching compat mode, if the requested cpu type differs from the host. Patches 2-3 address various aspects of this change. * Patch 2 : Adds support for generating the correct command line for QEMU. Existing xml semantics of 'host-model' are interpreted differently on PowerPc architecture to signify this type. * Patch 3 : PowerKVM vCPUs differ uniquely across generations ( such as power6, power7, power8). Each generation signifies a new PowerISA version that exhibits features unique to that generation. The higher order 16 bits of PVR denote the processor generation and the lower order 16 bits denote the cpu chip (sub)version. For all practical purposes of launching a VM, we care about the generation the vCPU will belong to, and not specifically the chip version. In fact, PowerKVM does not seek out specification of a unique chip version(such as POWER7_v2.3) for running a vCPU. This patch updates the libvirt PVR check to reflect this relationship. * Patch 4 : Documentation is added to explain functionality introduced by Patch 2. * Patch 5 : Added a test case for patch 2. Changelog: ========= v1 : https://www.redhat.com/archives/libvir-list/2014-June/msg01338.html v2 : http://www.redhat.com/archives/libvir-list/2014-October/msg00351.html v3 : http://www.mail-archive.com/libvir-list@redhat.com/msg104010.html v4 : http://www.mail-archive.com/libvir-list@redhat.com/msg104067.html v5 : http://www.mail-archive.com/libvir-list@redhat.com/msg104311.html Changes since v5: ================ * Added a new patch which introduces a test case for compat mode. * Fixed a whitespace in documentation patch #4. * Added listing for Power8e cpu model in cpu_map.xml Regards, -- Prerna Saxena Linux Technology Centre, IBM Systems and Technology Lab, Bangalore, India

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