Re: [PATCH v3 2/5] 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;

--- src/qemu/qemu_capabilities.c | 2 ++ src/qemu/qemu_capabilities.h | 1 + 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, 6 insertions(+) diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c index c954e42382..706169a5cf 100644 --- a/src/qemu/qemu_capabilities.c +++ b/src/qemu/qemu_capabilities.c @@ -642,6 +642,7 @@ VIR_ENUM_IMPL(virQEMUCaps, /* 410 */ "ich9-acpi-hotplug-bridge", /* QEMU_CAPS_ICH9_ACPI_HOTPLUG_BRIDGE */ + "piix4-acpi-root-hotplug-en", /* QEMU_CAPS_PIIX_ACPI_ROOT_PCI_HOTPLUG */ ); @@ -1470,6 +1471,7 @@ static struct virQEMUCapsDevicePropsFlags virQEMUCapsDevicePropsPiix4PM[] = { { "disable_s3", QEMU_CAPS_PIIX_DISABLE_S3, NULL }, { "disable_s4", QEMU_CAPS_PIIX_DISABLE_S4, NULL }, { "acpi-pci-hotplug-with-bridge-support", QEMU_CAPS_PIIX_ACPI_HOTPLUG_BRIDGE, 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 f53009b6e9..b0f9559d95 100644 --- a/src/qemu/qemu_capabilities.h +++ b/src/qemu/qemu_capabilities.h @@ -622,6 +622,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */ /* 410 */ QEMU_CAPS_ICH9_ACPI_HOTPLUG_BRIDGE, /* -M q35 ICH9-LPC.acpi-pci-hotplug-with-bridge-support */ + 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 126bae2401..da52eda200 100644 --- a/tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_5.2.0.x86_64.xml @@ -247,6 +247,7 @@ <flag name='input-linux'/> <flag name='query-display-options'/> <flag name='piix4-acpi-hotplug-bridge'/> + <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 b01db2dfbe..d75760f1f8 100644 --- a/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_6.0.0.x86_64.xml @@ -255,6 +255,7 @@ <flag name='query-display-options'/> <flag name='set-action'/> <flag name='piix4-acpi-hotplug-bridge'/> + <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 b136853aba..8fd3c51f4e 100644 --- a/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml +++ b/tests/qemucapabilitiesdata/caps_6.1.0.x86_64.xml @@ -258,6 +258,7 @@ <flag name='set-action'/> <flag name='piix4-acpi-hotplug-bridge'/> <flag name='ich9-acpi-hotplug-bridge'/> + <flag name='piix4-acpi-root-hotplug-en'/> <version>6001000</version> <kvmVersion>0</kvmVersion> <microcodeVersion>43100243</microcodeVersion>