The VM Generation ID is a mechanism to provide a unique 128-bit, cryptographically random, and integer value identifier known as the GUID (Globally Unique Identifier) to the guest OS. The value is used to help notify the guest operating system when the virtual machine is executed with a different configuration. This patch adds support for a new "genid" XML element similar to the "uuid" element. The "genid" element can have two forms "<genid/>" or "<genid>$GUID</genid>". If the $GUID is not provided, libvirt will generate one and save it in the XML. Since adding support for a generated GUID (or UUID like) value to be displayed modifying the xml2xml test to include virrandommock.so is necessary since it will generate a "known" value. Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- docs/formatdomain.html.in | 27 ++++++++++++ docs/schemas/domaincommon.rng | 8 ++++ src/conf/domain_conf.c | 54 ++++++++++++++++++++++++ src/conf/domain_conf.h | 5 +++ tests/qemuxml2argvdata/genid-auto.xml | 32 ++++++++++++++ tests/qemuxml2argvdata/genid.xml | 32 ++++++++++++++ tests/qemuxml2xmloutdata/genid-active.xml | 32 ++++++++++++++ tests/qemuxml2xmloutdata/genid-auto-active.xml | 32 ++++++++++++++ tests/qemuxml2xmloutdata/genid-auto-inactive.xml | 32 ++++++++++++++ tests/qemuxml2xmloutdata/genid-inactive.xml | 32 ++++++++++++++ tests/qemuxml2xmltest.c | 5 ++- 11 files changed, 290 insertions(+), 1 deletion(-) create mode 100644 tests/qemuxml2argvdata/genid-auto.xml create mode 100644 tests/qemuxml2argvdata/genid.xml create mode 100644 tests/qemuxml2xmloutdata/genid-active.xml create mode 100644 tests/qemuxml2xmloutdata/genid-auto-active.xml create mode 100644 tests/qemuxml2xmloutdata/genid-auto-inactive.xml create mode 100644 tests/qemuxml2xmloutdata/genid-inactive.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index 665d0f2529..9f6e8ee732 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -34,6 +34,7 @@ &lt;domain type='kvm' id='1'&gt; &lt;name&gt;MyGuest&lt;/name&gt; &lt;uuid&gt;4dea22b3-1d52-d8f3-2516-782e98ab3fa0&lt;/uuid&gt; + &lt;genid&gt;43dc0cf8-809b-4adb-9bea-a9abb5f3d90e&lt;/genid&gt; &lt;title&gt;A short description - title - of the domain&lt;/title&gt; &lt;description&gt;Some human readable description&lt;/description&gt; &lt;metadata&gt; @@ -61,6 +62,32 @@ specification. <span class="since">Since 0.0.1, sysinfo since 0.8.7</span></dd> + <dt><code>genid</code></dt> + <dd><span class="since">Since 4.4.0</span>, the <code>genid</code> + element can be used to add a Virtual Machine Generation ID which + exposes a 128-bit, cryptographically random, integer value identifier, + referred to as a Globally Unique Identifier (GUID) using the same + format as the <code>uuid</code>. The value is used to help notify + the guest operating system when the virtual machine is re-executing + something that has already executed before, such as: + + <ul> + <li>VM starts executing a snapshot</li> + <li>VM is recovered from backup</li> + <li>VM is failover in a disaster recovery environment</li> + <li>VM is imported, copied, or cloned</li> + </ul> + + The guest operating system notices the change and is then able to + react as appropriate by marking its copies of distributed databases + as dirty, re-initializing its random number generator, etc. + + <p> + The libvirt XML parser will accept both a provided GUID value + or just &lt;genid/&gt; in which case a GUID will be generated + and saved in the XML. For the transitions such as above, libvirt + will change the GUID before re-executing.</p></dd> + <dt><code>title</code></dt> <dd>The optional element <code>title</code> provides space for a short description of the domain. The title should not contain diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index f16e157397..2cb9bfea98 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -502,6 +502,14 @@ <ref name="UUID"/> </element> </optional> + <optional> + <element name="genid"> + <choice> + <ref name="UUID"/> + <empty/> + </choice> + </element> + </optional> </interleave> </define> <define name="idmap"> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 2253098090..1ff2b2ac19 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -18920,6 +18920,34 @@ virDomainDefParseXML(xmlDocPtr xml, VIR_FREE(tmp); } + /* Extract domain genid - a genid can either be provided or generated */ + if ((n = virXPathNodeSet("./genid", ctxt, &nodes)) < 0) + goto error; + + if (n > 0) { + if (n != 1) { + virReportError(VIR_ERR_XML_ERROR, "%s", + _("element 'genid' can only appear once")); + goto error; + } + def->genidRequested = true; + if (!(tmp = virXPathString("string(./genid[1])", ctxt))) { + if (virUUIDGenerate(def->genid) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + "%s", _("Failed to generate genid")); + goto error; + } + def->genidGenerated = true; + } else { + if (virUUIDParse(tmp, def->genid) < 0) { + virReportError(VIR_ERR_INTERNAL_ERROR, + "%s", _("malformed genid element")); + goto error; + } + } + } + VIR_FREE(nodes); + /* Extract short description of domain (title) */ def->title = virXPathString("string(./title[1])", ctxt); if (def->title && strchr(def->title, '\n')) { @@ -22034,6 +22062,25 @@ virDomainDefCheckABIStabilityFlags(virDomainDefPtr src, goto error; } + if (src->genidRequested != dst->genidRequested) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("Target domain requested genid does not match source")); + goto error; + } + + if (src->genidRequested && + memcmp(src->genid, dst->genid, VIR_UUID_BUFLEN) != 0) { + char guidsrc[VIR_UUID_STRING_BUFLEN]; + char guiddst[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(src->genid, guidsrc); + virUUIDFormat(dst->genid, guiddst); + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, + _("Target domain genid %s does not match source %s"), + guiddst, guidsrc); + goto error; + } + /* Not strictly ABI related, but we want to make sure domains * don't get silently re-named through the backdoor when passing * custom XML into various APIs, since this would create havoc @@ -26752,6 +26799,13 @@ virDomainDefFormatInternal(virDomainDefPtr def, virUUIDFormat(uuid, uuidstr); virBufferAsprintf(buf, "<uuid>%s</uuid>\n", uuidstr); + if (def->genidRequested) { + char genidstr[VIR_UUID_STRING_BUFLEN]; + + virUUIDFormat(def->genid, genidstr); + virBufferAsprintf(buf, "<genid>%s</genid>\n", genidstr); + } + virBufferEscapeString(buf, "<title>%s</title>\n", def->title); virBufferEscapeString(buf, "<description>%s</description>\n", diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 37356df42d..b7e52a1e03 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2328,6 +2328,11 @@ struct _virDomainDef { virDomainVirtType virtType; int id; unsigned char uuid[VIR_UUID_BUFLEN]; + + unsigned char genid[VIR_UUID_BUFLEN]; + bool genidRequested; + bool genidGenerated; + char *name; char *title; char *description; diff --git a/tests/qemuxml2argvdata/genid-auto.xml b/tests/qemuxml2argvdata/genid-auto.xml new file mode 100644 index 0000000000..96ad9ddda8 --- /dev/null +++ b/tests/qemuxml2argvdata/genid-auto.xml @@ -0,0 +1,32 @@ +<domain type='qemu' id='1'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <genid/> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <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='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2argvdata/genid.xml b/tests/qemuxml2argvdata/genid.xml new file mode 100644 index 0000000000..fc41f2dd28 --- /dev/null +++ b/tests/qemuxml2argvdata/genid.xml @@ -0,0 +1,32 @@ +<domain type='qemu' id='1'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <genid>e9392370-2917-565e-692b-d057f46512d6</genid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <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='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/genid-active.xml b/tests/qemuxml2xmloutdata/genid-active.xml new file mode 100644 index 0000000000..fc41f2dd28 --- /dev/null +++ b/tests/qemuxml2xmloutdata/genid-active.xml @@ -0,0 +1,32 @@ +<domain type='qemu' id='1'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <genid>e9392370-2917-565e-692b-d057f46512d6</genid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <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='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/genid-auto-active.xml b/tests/qemuxml2xmloutdata/genid-auto-active.xml new file mode 100644 index 0000000000..aeca0d7fc0 --- /dev/null +++ b/tests/qemuxml2xmloutdata/genid-auto-active.xml @@ -0,0 +1,32 @@ +<domain type='qemu' id='1'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <genid>00010203-0405-4607-8809-0a0b0c0d0e0f</genid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <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='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/genid-auto-inactive.xml b/tests/qemuxml2xmloutdata/genid-auto-inactive.xml new file mode 100644 index 0000000000..a7b711d469 --- /dev/null +++ b/tests/qemuxml2xmloutdata/genid-auto-inactive.xml @@ -0,0 +1,32 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <genid>00010203-0405-4607-8809-0a0b0c0d0e0f</genid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <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='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmloutdata/genid-inactive.xml b/tests/qemuxml2xmloutdata/genid-inactive.xml new file mode 100644 index 0000000000..8bd526a7a9 --- /dev/null +++ b/tests/qemuxml2xmloutdata/genid-inactive.xml @@ -0,0 +1,32 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <genid>e9392370-2917-565e-692b-d057f46512d6</genid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='x86_64' machine='pc'>hvm</type> + <boot dev='hd'/> + </os> + <features> + <acpi/> + </features> + <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='usb' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/> + </controller> + <controller type='ide' index='0'> + <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> + </controller> + <controller type='pci' index='0' model='pci-root'/> + <input type='mouse' bus='ps2'/> + <input type='keyboard' bus='ps2'/> + <memballoon model='none'/> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index e31d8212fe..bd7433dce4 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -276,6 +276,8 @@ mymain(void) setenv("PATH", "/bin", 1); DO_TEST("minimal", NONE); + DO_TEST("genid", NONE); + DO_TEST("genid-auto", NONE); DO_TEST("machine-core-on", NONE); DO_TEST("machine-core-off", NONE); DO_TEST("machine-loadparm-multiple-disks-nets-s390", NONE); @@ -1220,7 +1222,8 @@ mymain(void) } VIR_TEST_MAIN_PRELOAD(mymain, - abs_builddir "/.libs/virpcimock.so") + abs_builddir "/.libs/virpcimock.so", + abs_builddir "/.libs/virrandommock.so") #else -- 2.14.3

Before we generate the command line for qemu, if the domain about to be launched desires to utilize the VM Generation ID functionality, then handle both the regenerating the GUID value for backup recovery (restore operation) and the startup after snapshot as both require a new GUID to be generated to allow the guest operating system to recognize the VM is re-executing something that has already executed before. Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- src/qemu/qemu_driver.c | 17 ++++++++++++++--- src/qemu/qemu_process.c | 46 ++++++++++++++++++++++++++++++++++++++++++++-- src/qemu/qemu_process.h | 1 + 3 files changed, 59 insertions(+), 5 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 3a328e5d46..4a8059ebd1 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -6578,7 +6578,8 @@ qemuDomainSaveImageStartVM(virConnectPtr conn, if (qemuProcessStart(conn, driver, vm, cookie ? cookie->cpu : NULL, asyncJob, "stdio", *fd, path, NULL, VIR_NETDEV_VPORT_PROFILE_OP_RESTORE, - VIR_QEMU_PROCESS_START_PAUSED) == 0) + VIR_QEMU_PROCESS_START_PAUSED | + VIR_QEMU_PROCESS_START_GEN_VMID) == 0) restored = true; if (intermediatefd != -1) { @@ -15852,6 +15853,15 @@ qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, compatible = qemuDomainCheckABIStability(driver, vm, config); } + /* If using VM GenID, there is no way currently to change + * the genid for the running guest, so set an error and + * mark as incompatible. */ + if (compatible && config->genidRequested) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("domain genid update requires restart")); + compatible = false; + } + if (!compatible) { virErrorPtr err = virGetLastError(); @@ -15932,7 +15942,8 @@ qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, cookie ? cookie->cpu : NULL, QEMU_ASYNC_JOB_START, NULL, -1, NULL, snap, VIR_NETDEV_VPORT_PROFILE_OP_CREATE, - VIR_QEMU_PROCESS_START_PAUSED); + VIR_QEMU_PROCESS_START_PAUSED | + VIR_QEMU_PROCESS_START_GEN_VMID); virDomainAuditStart(vm, "from-snapshot", rc >= 0); detail = VIR_DOMAIN_EVENT_STARTED_FROM_SNAPSHOT; event = virDomainEventLifecycleNewFromObj(vm, @@ -16018,7 +16029,7 @@ qemuDomainRevertToSnapshot(virDomainSnapshotPtr snapshot, VIR_DOMAIN_SNAPSHOT_REVERT_PAUSED)) { /* Flush first event, now do transition 2 or 3 */ bool paused = (flags & VIR_DOMAIN_SNAPSHOT_REVERT_PAUSED) != 0; - unsigned int start_flags = 0; + unsigned int start_flags = VIR_QEMU_PROCESS_START_GEN_VMID; start_flags |= paused ? VIR_QEMU_PROCESS_START_PAUSED : 0; diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index ac2049b95d..13b12fdd00 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -6050,6 +6050,43 @@ qemuProcessPrepareHost(virQEMUDriverPtr driver, } +/** + * qemuProcessGenID: + * @vm: Pointer to domain object + * @flags: qemuProcessStartFlags + * + * If this domain is requesting to use genid + */ +static int +qemuProcessGenID(virDomainObjPtr vm, + unsigned int flags) +{ + qemuDomainObjPrivatePtr priv = vm->privateData; + + if (!vm->def->genidRequested) + return 0; + + if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_DEVICE_VMGENID)) { + virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", + _("this QEMU does not support the 'genid' capability")); + return -1; + } + + /* If we are coming from a path where we must provide a new gen id + * value regardless of whether it was previously generated or provided, + * then generate a new GUID value before we build the command line. */ + if (flags & VIR_QEMU_PROCESS_START_GEN_VMID) { + if (virUUIDGenerate(vm->def->genid)) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("failed to regenerate genid")); + return -1; + } + } + + return 0; +} + + /** * qemuProcessLaunch: * @@ -6102,7 +6139,8 @@ qemuProcessLaunch(virConnectPtr conn, virCheckFlags(VIR_QEMU_PROCESS_START_COLD | VIR_QEMU_PROCESS_START_PAUSED | VIR_QEMU_PROCESS_START_AUTODESTROY | - VIR_QEMU_PROCESS_START_NEW, -1); + VIR_QEMU_PROCESS_START_NEW | + VIR_QEMU_PROCESS_START_GEN_VMID, -1); cfg = virQEMUDriverGetConfig(driver); @@ -6126,6 +6164,9 @@ qemuProcessLaunch(virConnectPtr conn, goto cleanup; logfile = qemuDomainLogContextGetWriteFD(logCtxt); + if (qemuProcessGenID(vm, flags) < 0) + goto cleanup; + VIR_DEBUG("Building emulator command line"); if (!(cmd = qemuBuildCommandLine(driver, qemuDomainLogContextGetManager(logCtxt), @@ -6491,7 +6532,8 @@ qemuProcessStart(virConnectPtr conn, virCheckFlagsGoto(VIR_QEMU_PROCESS_START_COLD | VIR_QEMU_PROCESS_START_PAUSED | - VIR_QEMU_PROCESS_START_AUTODESTROY, cleanup); + VIR_QEMU_PROCESS_START_AUTODESTROY | + VIR_QEMU_PROCESS_START_GEN_VMID, cleanup); if (!migrateFrom && !snapshot) flags |= VIR_QEMU_PROCESS_START_NEW; diff --git a/src/qemu/qemu_process.h b/src/qemu/qemu_process.h index a0e34b1c85..5098eacfe8 100644 --- a/src/qemu/qemu_process.h +++ b/src/qemu/qemu_process.h @@ -80,6 +80,7 @@ typedef enum { VIR_QEMU_PROCESS_START_AUTODESTROY = 1 << 2, VIR_QEMU_PROCESS_START_PRETEND = 1 << 3, VIR_QEMU_PROCESS_START_NEW = 1 << 4, /* internal, new VM is starting */ + VIR_QEMU_PROCESS_START_GEN_VMID = 1 << 5, /* Generate a new VMID */ } qemuProcessStartFlags; int qemuProcessStart(virConnectPtr conn, -- 2.14.3

Report domaincaps <features><genid supported='yes'/> if the guest config accepts <genid/> or <genid>$GUID</genid>. Signed-off-by: John Ferlan <jferlan(a)redhat.com&gt; --- docs/formatdomaincaps.html.in | 7 ++++++- docs/schemas/domaincaps.rng | 7 +++++++ src/conf/domain_capabilities.c | 3 +++ src/conf/domain_capabilities.h | 1 + src/qemu/qemu_capabilities.c | 2 ++ tests/domaincapsschemadata/basic.xml | 1 + tests/domaincapsschemadata/bhyve_basic.x86_64.xml | 1 + tests/domaincapsschemadata/bhyve_fbuf.x86_64.xml | 1 + tests/domaincapsschemadata/bhyve_uefi.x86_64.xml | 1 + tests/domaincapsschemadata/full.xml | 1 + tests/domaincapsschemadata/libxl-xenfv-usb.xml | 1 + tests/domaincapsschemadata/libxl-xenfv.xml | 1 + tests/domaincapsschemadata/libxl-xenpv-usb.xml | 1 + tests/domaincapsschemadata/libxl-xenpv.xml | 1 + tests/domaincapsschemadata/qemu_1.7.0.x86_64.xml | 1 + tests/domaincapsschemadata/qemu_2.12.0-virt.aarch64.xml | 1 + tests/domaincapsschemadata/qemu_2.12.0.ppc64.xml | 1 + tests/domaincapsschemadata/qemu_2.12.0.s390x.xml | 1 + tests/domaincapsschemadata/qemu_2.12.0.x86_64.xml | 1 + tests/domaincapsschemadata/qemu_2.6.0-virt.aarch64.xml | 1 + tests/domaincapsschemadata/qemu_2.6.0.aarch64.xml | 1 + tests/domaincapsschemadata/qemu_2.6.0.ppc64.xml | 1 + tests/domaincapsschemadata/qemu_2.6.0.x86_64.xml | 1 + tests/domaincapsschemadata/qemu_2.7.0.s390x.xml | 1 + tests/domaincapsschemadata/qemu_2.8.0-tcg.x86_64.xml | 1 + tests/domaincapsschemadata/qemu_2.8.0.s390x.xml | 1 + tests/domaincapsschemadata/qemu_2.8.0.x86_64.xml | 1 + tests/domaincapsschemadata/qemu_2.9.0-q35.x86_64.xml | 1 + tests/domaincapsschemadata/qemu_2.9.0-tcg.x86_64.xml | 1 + tests/domaincapsschemadata/qemu_2.9.0.x86_64.xml | 1 + 30 files changed, 44 insertions(+), 1 deletion(-) diff --git a/docs/formatdomaincaps.html.in b/docs/formatdomaincaps.html.in index b68ae4b4f1..e0814cb9a2 100644 --- a/docs/formatdomaincaps.html.in +++ b/docs/formatdomaincaps.html.in @@ -434,6 +434,7 @@ &lt;/enum&gt; &lt;/gic&gt; &lt;vmcoreinfo supported='yes'/&gt; + &lt;genid supported='yes'/&gt; &lt;/features&gt; &lt;/domainCapabilities&gt; </pre> @@ -460,7 +461,11 @@ <h4><a id="elementsvmcoreinfo">vmcoreinfo</a></h4> - <p>Reports whether the vmcoreinfo feature can be enabled</p> + <p>Reports whether the vmcoreinfo feature can be enabled.</p> + + <h4><a id="elementsgenid">genid</a></h4> + + <p>Reports whether the genid feature can be used by the domain.</p> </body> </html> diff --git a/docs/schemas/domaincaps.rng b/docs/schemas/domaincaps.rng index 5913d711a3..5ceabb0a80 100644 --- a/docs/schemas/domaincaps.rng +++ b/docs/schemas/domaincaps.rng @@ -184,6 +184,7 @@ <interleave> <ref name='gic'/> <ref name='vmcoreinfo'/> + <ref name='vmgenid'/> </interleave> </element> </define> @@ -201,6 +202,12 @@ </element> </define> + <define name='vmgenid'> + <element name='genid'> + <ref name='supported'/> + </element> + </define> + <define name='value'> <zeroOrMore> <element name='value'> diff --git a/src/conf/domain_capabilities.c b/src/conf/domain_capabilities.c index 6e2ab0a287..c20358e916 100644 --- a/src/conf/domain_capabilities.c +++ b/src/conf/domain_capabilities.c @@ -586,6 +586,9 @@ virDomainCapsFormat(virDomainCapsPtr const caps) virBufferAsprintf(&buf, "<vmcoreinfo supported='%s'/>\n", caps->vmcoreinfo ? "yes" : "no"); + virBufferAsprintf(&buf, "<genid supported='%s'/>\n", + caps->genid ? "yes" : "no"); + virBufferAdjustIndent(&buf, -2); virBufferAddLit(&buf, "</features>\n"); diff --git a/src/conf/domain_capabilities.h b/src/conf/domain_capabilities.h index 9b852e8649..b0eb4aa7e3 100644 --- a/src/conf/domain_capabilities.h +++ b/src/conf/domain_capabilities.h @@ -159,6 +159,7 @@ struct _virDomainCaps { virDomainCapsFeatureGIC gic; bool vmcoreinfo; + bool genid; /* add new domain features here */ }; diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index e755edf5ec..40f49a8d9e 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -4943,6 +4943,8 @@ virQEMUCapsFillDomainCaps(virCapsPtr caps, domCaps->vmcoreinfo = virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMCOREINFO); + domCaps->genid = virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMGENID); + if (virQEMUCapsFillDomainOSCaps(os, firmwares, nfirmwares) < 0 || virQEMUCapsFillDomainCPUCaps(caps, qemuCaps, domCaps) < 0 || virQEMUCapsFillDomainIOThreadCaps(qemuCaps, domCaps) < 0 || diff --git a/tests/domaincapsschemadata/basic.xml b/tests/domaincapsschemadata/basic.xml index 09e9376585..acc4a4d7d7 100644 --- a/tests/domaincapsschemadata/basic.xml +++ b/tests/domaincapsschemadata/basic.xml @@ -19,5 +19,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/bhyve_basic.x86_64.xml b/tests/domaincapsschemadata/bhyve_basic.x86_64.xml index 055d05b568..c4e8477055 100644 --- a/tests/domaincapsschemadata/bhyve_basic.x86_64.xml +++ b/tests/domaincapsschemadata/bhyve_basic.x86_64.xml @@ -29,5 +29,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/bhyve_fbuf.x86_64.xml b/tests/domaincapsschemadata/bhyve_fbuf.x86_64.xml index b22ca43ba0..0ba46b2c5e 100644 --- a/tests/domaincapsschemadata/bhyve_fbuf.x86_64.xml +++ b/tests/domaincapsschemadata/bhyve_fbuf.x86_64.xml @@ -46,5 +46,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/bhyve_uefi.x86_64.xml b/tests/domaincapsschemadata/bhyve_uefi.x86_64.xml index 625a55e70c..80318c78d8 100644 --- a/tests/domaincapsschemadata/bhyve_uefi.x86_64.xml +++ b/tests/domaincapsschemadata/bhyve_uefi.x86_64.xml @@ -38,5 +38,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/full.xml b/tests/domaincapsschemadata/full.xml index 47017c6fd1..9866886303 100644 --- a/tests/domaincapsschemadata/full.xml +++ b/tests/domaincapsschemadata/full.xml @@ -109,5 +109,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/libxl-xenfv-usb.xml b/tests/domaincapsschemadata/libxl-xenfv-usb.xml index 3f245e8961..6b56419ee1 100644 --- a/tests/domaincapsschemadata/libxl-xenfv-usb.xml +++ b/tests/domaincapsschemadata/libxl-xenfv-usb.xml @@ -72,5 +72,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/libxl-xenfv.xml b/tests/domaincapsschemadata/libxl-xenfv.xml index a81ce3310c..65dbc5aaf4 100644 --- a/tests/domaincapsschemadata/libxl-xenfv.xml +++ b/tests/domaincapsschemadata/libxl-xenfv.xml @@ -71,5 +71,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/libxl-xenpv-usb.xml b/tests/domaincapsschemadata/libxl-xenpv-usb.xml index 2bcd588c0f..92e54bae07 100644 --- a/tests/domaincapsschemadata/libxl-xenpv-usb.xml +++ b/tests/domaincapsschemadata/libxl-xenpv-usb.xml @@ -62,5 +62,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/libxl-xenpv.xml b/tests/domaincapsschemadata/libxl-xenpv.xml index e856ed00c6..741fd2d9d6 100644 --- a/tests/domaincapsschemadata/libxl-xenpv.xml +++ b/tests/domaincapsschemadata/libxl-xenpv.xml @@ -61,5 +61,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_1.7.0.x86_64.xml b/tests/domaincapsschemadata/qemu_1.7.0.x86_64.xml index 88c087549d..236d0de8f1 100644 --- a/tests/domaincapsschemadata/qemu_1.7.0.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_1.7.0.x86_64.xml @@ -110,5 +110,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.12.0-virt.aarch64.xml b/tests/domaincapsschemadata/qemu_2.12.0-virt.aarch64.xml index 69d9968064..4d7056162e 100644 --- a/tests/domaincapsschemadata/qemu_2.12.0-virt.aarch64.xml +++ b/tests/domaincapsschemadata/qemu_2.12.0-virt.aarch64.xml @@ -117,5 +117,6 @@ </enum> </gic> <vmcoreinfo supported='yes'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.12.0.ppc64.xml b/tests/domaincapsschemadata/qemu_2.12.0.ppc64.xml index 5fac2ed772..8d7fd64f65 100644 --- a/tests/domaincapsschemadata/qemu_2.12.0.ppc64.xml +++ b/tests/domaincapsschemadata/qemu_2.12.0.ppc64.xml @@ -79,5 +79,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.12.0.s390x.xml b/tests/domaincapsschemadata/qemu_2.12.0.s390x.xml index 1475451e68..dac3df28da 100644 --- a/tests/domaincapsschemadata/qemu_2.12.0.s390x.xml +++ b/tests/domaincapsschemadata/qemu_2.12.0.s390x.xml @@ -171,5 +171,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.12.0.x86_64.xml b/tests/domaincapsschemadata/qemu_2.12.0.x86_64.xml index d0e2866c49..a8e3174dd6 100644 --- a/tests/domaincapsschemadata/qemu_2.12.0.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_2.12.0.x86_64.xml @@ -141,5 +141,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='yes'/> + <genid supported='yes'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.6.0-virt.aarch64.xml b/tests/domaincapsschemadata/qemu_2.6.0-virt.aarch64.xml index a4290ddc22..709a14d7fe 100644 --- a/tests/domaincapsschemadata/qemu_2.6.0-virt.aarch64.xml +++ b/tests/domaincapsschemadata/qemu_2.6.0-virt.aarch64.xml @@ -114,5 +114,6 @@ </enum> </gic> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.6.0.aarch64.xml b/tests/domaincapsschemadata/qemu_2.6.0.aarch64.xml index 943d978682..a4789a532c 100644 --- a/tests/domaincapsschemadata/qemu_2.6.0.aarch64.xml +++ b/tests/domaincapsschemadata/qemu_2.6.0.aarch64.xml @@ -110,5 +110,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.6.0.ppc64.xml b/tests/domaincapsschemadata/qemu_2.6.0.ppc64.xml index 86985a5856..79f4a06769 100644 --- a/tests/domaincapsschemadata/qemu_2.6.0.ppc64.xml +++ b/tests/domaincapsschemadata/qemu_2.6.0.ppc64.xml @@ -83,5 +83,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.6.0.x86_64.xml b/tests/domaincapsschemadata/qemu_2.6.0.x86_64.xml index 04be214659..55edf1b221 100644 --- a/tests/domaincapsschemadata/qemu_2.6.0.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_2.6.0.x86_64.xml @@ -115,5 +115,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.7.0.s390x.xml b/tests/domaincapsschemadata/qemu_2.7.0.s390x.xml index 6b2d81520e..d18e05e53c 100644 --- a/tests/domaincapsschemadata/qemu_2.7.0.s390x.xml +++ b/tests/domaincapsschemadata/qemu_2.7.0.s390x.xml @@ -76,5 +76,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.8.0-tcg.x86_64.xml b/tests/domaincapsschemadata/qemu_2.8.0-tcg.x86_64.xml index eadcc3c8e4..825f1f97f8 100644 --- a/tests/domaincapsschemadata/qemu_2.8.0-tcg.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_2.8.0-tcg.x86_64.xml @@ -116,5 +116,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.8.0.s390x.xml b/tests/domaincapsschemadata/qemu_2.8.0.s390x.xml index 0a71be4244..d524bb8970 100644 --- a/tests/domaincapsschemadata/qemu_2.8.0.s390x.xml +++ b/tests/domaincapsschemadata/qemu_2.8.0.s390x.xml @@ -157,5 +157,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.8.0.x86_64.xml b/tests/domaincapsschemadata/qemu_2.8.0.x86_64.xml index 243d84fd0d..a0d9e11522 100644 --- a/tests/domaincapsschemadata/qemu_2.8.0.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_2.8.0.x86_64.xml @@ -116,5 +116,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='no'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.9.0-q35.x86_64.xml b/tests/domaincapsschemadata/qemu_2.9.0-q35.x86_64.xml index d7cb1dc5ee..254ee01049 100644 --- a/tests/domaincapsschemadata/qemu_2.9.0-q35.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_2.9.0-q35.x86_64.xml @@ -124,5 +124,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='yes'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.9.0-tcg.x86_64.xml b/tests/domaincapsschemadata/qemu_2.9.0-tcg.x86_64.xml index 09457e4be6..478133693f 100644 --- a/tests/domaincapsschemadata/qemu_2.9.0-tcg.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_2.9.0-tcg.x86_64.xml @@ -148,5 +148,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='yes'/> </features> </domainCapabilities> diff --git a/tests/domaincapsschemadata/qemu_2.9.0.x86_64.xml b/tests/domaincapsschemadata/qemu_2.9.0.x86_64.xml index f8337d8dd4..058e624ed3 100644 --- a/tests/domaincapsschemadata/qemu_2.9.0.x86_64.xml +++ b/tests/domaincapsschemadata/qemu_2.9.0.x86_64.xml @@ -125,5 +125,6 @@ <features> <gic supported='no'/> <vmcoreinfo supported='no'/> + <genid supported='yes'/> </features> </domainCapabilities> -- 2.14.3