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qemu: Pass correct qemuCaps to virDomainDefPostParse
Since qemuDomainDefPostParse callback requires qemuCaps, we need to make sure it gets the capabilities stored in the domain's private data if the domain is running. Passing NULL may cause QEMU capabilities probing to be triggered in case QEMU binary changed in the meantime. When this happens while a running domain object is locked, QMP event delivered to the domain before QEMU capabilities probing finishes will deadlock the event loop. This patch fixes all paths leading to virDomainDefPostParse. Signed-off-by: Jiri Denemark <jdenemar@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
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@ -8326,6 +8326,7 @@ static int
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qemuDomainAttachDeviceConfig(virDomainDefPtr vmdef,
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virDomainDeviceDefPtr dev,
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virCapsPtr caps,
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virQEMUCapsPtr qemuCaps,
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unsigned int parse_flags,
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virDomainXMLOptionPtr xmlopt)
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{
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@ -8517,7 +8518,7 @@ qemuDomainAttachDeviceConfig(virDomainDefPtr vmdef,
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return -1;
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}
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if (virDomainDefPostParse(vmdef, caps, parse_flags, xmlopt, NULL) < 0)
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if (virDomainDefPostParse(vmdef, caps, parse_flags, xmlopt, qemuCaps) < 0)
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return -1;
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return 0;
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@ -8528,6 +8529,7 @@ static int
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qemuDomainDetachDeviceConfig(virDomainDefPtr vmdef,
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virDomainDeviceDefPtr dev,
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virCapsPtr caps,
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virQEMUCapsPtr qemuCaps,
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unsigned int parse_flags,
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virDomainXMLOptionPtr xmlopt)
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{
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@ -8709,7 +8711,7 @@ qemuDomainDetachDeviceConfig(virDomainDefPtr vmdef,
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return -1;
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}
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if (virDomainDefPostParse(vmdef, caps, parse_flags, xmlopt, NULL) < 0)
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if (virDomainDefPostParse(vmdef, caps, parse_flags, xmlopt, qemuCaps) < 0)
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return -1;
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return 0;
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@ -8719,6 +8721,7 @@ static int
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qemuDomainUpdateDeviceConfig(virDomainDefPtr vmdef,
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virDomainDeviceDefPtr dev,
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virCapsPtr caps,
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virQEMUCapsPtr qemuCaps,
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unsigned int parse_flags,
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virDomainXMLOptionPtr xmlopt)
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{
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@ -8814,7 +8817,7 @@ qemuDomainUpdateDeviceConfig(virDomainDefPtr vmdef,
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return -1;
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}
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if (virDomainDefPostParse(vmdef, caps, parse_flags, xmlopt, NULL) < 0)
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if (virDomainDefPostParse(vmdef, caps, parse_flags, xmlopt, qemuCaps) < 0)
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return -1;
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return 0;
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@ -8866,7 +8869,7 @@ qemuDomainAttachDeviceLiveAndConfig(virDomainObjPtr vm,
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false) < 0)
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goto cleanup;
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if (qemuDomainAttachDeviceConfig(vmdef, devConf, caps,
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if (qemuDomainAttachDeviceConfig(vmdef, devConf, caps, priv->qemuCaps,
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parse_flags,
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driver->xmlopt) < 0)
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goto cleanup;
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@ -9031,7 +9034,7 @@ static int qemuDomainUpdateDeviceFlags(virDomainPtr dom,
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/* virDomainDefCompatibleDevice call is delayed until we know the
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* device we're going to update. */
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if ((ret = qemuDomainUpdateDeviceConfig(vmdef, dev, caps,
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if ((ret = qemuDomainUpdateDeviceConfig(vmdef, dev, caps, priv->qemuCaps,
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parse_flags,
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driver->xmlopt)) < 0)
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goto endjob;
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@ -9126,7 +9129,7 @@ qemuDomainDetachDeviceLiveAndConfig(virQEMUDriverPtr driver,
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if (!vmdef)
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goto cleanup;
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if (qemuDomainDetachDeviceConfig(vmdef, dev, caps,
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if (qemuDomainDetachDeviceConfig(vmdef, dev, caps, priv->qemuCaps,
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parse_flags,
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driver->xmlopt) < 0)
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goto cleanup;
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@ -9212,7 +9215,7 @@ qemuDomainDetachDeviceAliasLiveAndConfig(virQEMUDriverPtr driver,
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if (virDomainDefFindDevice(vmdef, alias, &dev, true) < 0)
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goto cleanup;
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if (qemuDomainDetachDeviceConfig(vmdef, &dev, caps,
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if (qemuDomainDetachDeviceConfig(vmdef, &dev, caps, priv->qemuCaps,
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parse_flags, driver->xmlopt) < 0)
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goto cleanup;
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}
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@ -5615,7 +5615,7 @@ qemuProcessInit(virQEMUDriverPtr driver,
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if (vm->def->postParseFailed) {
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VIR_DEBUG("re-running the post parse callback");
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if (virDomainDefPostParse(vm->def, caps, 0, driver->xmlopt, NULL) < 0)
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if (virDomainDefPostParse(vm->def, caps, 0, driver->xmlopt, priv->qemuCaps) < 0)
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goto cleanup;
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}
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