qemu: Add the QEMU_CAPS_CPU_KVM_NO_ADJVTIME capability

We will use this capability to detect whether the QEMU binary
supports the kvm-no-adjvtime CPU feature.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>

src/qemu/qemu_capabilities.c

@@ -559,6 +559,7 @@ VIR_ENUM_IMPL(virQEMUCaps,
               "rng-builtin",
               "virtio-net.failover",
               "tpm-spapr",
+              "cpu.kvm-no-adjvtime",
     );
 
 
@@ -1562,6 +1563,7 @@ static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsMemoryBackendMemfd[]
 
 static struct virQEMUCapsStringFlags virQEMUCapsObjectPropsMaxCPU[] = {
     { "unavailable-features", QEMU_CAPS_CPU_UNAVAILABLE_FEATURES },
+    { "kvm-no-adjvtime", QEMU_CAPS_CPU_KVM_NO_ADJVTIME },
 };
 
 static virQEMUCapsObjectTypeProps virQEMUCapsObjectProps[] = {

src/qemu/qemu_capabilities.h

@@ -541,6 +541,7 @@ typedef enum { /* virQEMUCapsFlags grouping marker for syntax-check */
     QEMU_CAPS_OBJECT_RNG_BUILTIN, /* -object rng-builtin */
     QEMU_CAPS_VIRTIO_NET_FAILOVER, /* virtio-net-*.failover */
     QEMU_CAPS_DEVICE_TPM_SPAPR, /* -device tpm-spapr */
+    QEMU_CAPS_CPU_KVM_NO_ADJVTIME, /* cpu.kvm-no-adjvtime */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;

tests/qemucapabilitiesdata/caps_5.0.0.aarch64.xml

@@ -179,6 +179,7 @@
   <flag name='smp-dies'/>
   <flag name='rng-builtin'/>
   <flag name='virtio-net.failover'/>
+  <flag name='cpu.kvm-no-adjvtime'/>
   <version>4002050</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>61700241</microcodeVersion>