[PATCH v4 1/4] qemu: capablities: detect presence of acpi-root-pci-hotplug for i440fx machines

The following change in qemu added support for a global boolean flag specific to i440fx machines that would turn off or on acpi based hotplug for pci root bus: 3d7e78aa7777f ("Introduce a new flag for i440fx to disable PCI hotplug on the root bus") The option is passed as "-global PIIX4_PM.acpi-root-pci-hotplug=on" etc in qemu commandline. It is enabled by default. This patch adds the corresponding qemu capabilities in libvirt as QEMU_CAPS_PIIX_ACPI_ROOT_PCI_HOTPLUG. Please note that the test specific qemu capabilities .replies files has already been updated as a part of regular refreshing them when a new qemu version is released. Hence, no updates to those files are required. Signed-off-by: Ani Sinha <ani(a)anisinha.ca&gt; Reviewed-by: Laine Stump <laine(a)redhat.com&gt; --- src/qemu/qemu_capabilities.c | 4 ++++ src/qemu/qemu_capabilities.h | 3 +++ tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml | 1 + 5 files changed, 10 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index db5432c9fc..71aca20c4c 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -639,6 +639,9 @@ VIR_ENUM_IMPL(virQEMUCaps, "s390-pv-guest", /* QEMU_CAPS_S390_PV_GUEST */ "set-action", /* QEMU_CAPS_SET_ACTION */ "virtio-blk.queue-size", /* QEMU_CAPS_VIRTIO_BLK_QUEUE_SIZE */ + + /* 410 */ + "piix4-acpi-root-hotplug-en", /* QEMU_CAPS_PIIX_ACPI_ROOT_PCI_HOTPLUG */ ); @@ -1465,6 +1468,7 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsIDEDrive[] = { static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsPiix4PM[] = { { "disable_s3", QEMU_CAPS_PIIX_DISABLE_S3, NULL }, { "disable_s4", QEMU_CAPS_PIIX_DISABLE_S4, NULL }, + { "acpi-root-pci-hotplug", QEMU_CAPS_PIIX_ACPI_ROOT_PCI_HOTPLUG, NULL }, }; static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsUSBRedir[] = { diff --git a/src/qemu/qemu_capabilities.h b/src/qemu/qemu_capabilities.h index 097f28bd40..c2d1e352bd 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -620,6 +620,9 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */ QEMU_CAPS_SET_ACTION, /* 'set-action' QMP command */ QEMU_CAPS_VIRTIO_BLK_QUEUE_SIZE, /* virtio-blk-*.queue-size */ + /* 410 */ + QEMU_CAPS_PIIX_ACPI_ROOT_PCI_HOTPLUG, /* -M pc PIIX4_PM.acpi-root-pci-hotplug */ + QEMU_CAPS_LAST /* this must always be the last item */ } virQEMUCapsFlags; diff --git a/tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml index e09880e937..ffd0e66d00 100644 --- a/tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml @@ -233,6 +233,7 @@ <flag name='input-linux'/> <flag name='query-display-options'/> <flag name='virtio-blk.queue-size'/> + <flag name='piix4-acpi-root-hotplug-en'/> <version>5002000</version> <kvmVersion>0</kvmVersion> <microcodeVersion>43100243</microcodeVersion> diff --git a/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml index 571336c1fa..658a1e742f 100644 --- a/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml @@ -241,6 +241,7 @@ <flag name='query-display-options'/> <flag name='set-action'/> <flag name='virtio-blk.queue-size'/> + <flag name='piix4-acpi-root-hotplug-en'/> <version>6000000</version> <kvmVersion>0</kvmVersion> <microcodeVersion>43100242</microcodeVersion> diff --git a/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml b/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml index 74b87847d0..5bb21fec47 100644 --- a/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml @@ -243,6 +243,7 @@ <flag name='query-display-options'/> <flag name='set-action'/> <flag name='virtio-blk.queue-size'/> + <flag name='piix4-acpi-root-hotplug-en'/> <version>6001000</version> <kvmVersion>0</kvmVersion> <microcodeVersion>43100243</microcodeVersion> -- 2.25.1