qemu: Add capability for pseries machine's max-cpu-compat= parameter

Signed-off-by: NShivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Reviewed-by: NAndrea Bolognani <abologna@redhat.com>

src/qemu/qemu_capabilities.c

@@ -456,6 +456,7 @@ VIR_ENUM_IMPL(virQEMUCaps, QEMU_CAPS_LAST,
 
               /* 280 */
               "pl011",
+              "machine.pseries.max-cpu-compat",
     );
 
 
@@ -4859,6 +4860,12 @@ virQEMUCapsInitQMPMonitor(virQEMUCapsPtr qemuCaps,
     if (qemuCaps->version >= 2010000)
         virQEMUCapsSet(qemuCaps, QEMU_CAPS_NUMA_DIST);
 
+    /* no way to query max-cpu-compat */
+    if (qemuCaps->version >= 2010000 &&
+        ARCH_IS_PPC64(qemuCaps->arch)) {
+        virQEMUCapsSet(qemuCaps, QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT);
+    }
+
     if (virQEMUCapsProbeQMPCommands(qemuCaps, mon) < 0)
         goto cleanup;
 

src/qemu/qemu_capabilities.h

@@ -442,6 +442,7 @@ typedef enum {
 
     /* 280 */
     QEMU_CAPS_DEVICE_PL011, /* -device pl011 (not user-instantiable) */
+    QEMU_CAPS_MACHINE_PSERIES_MAX_CPU_COMPAT, /* -machine pseries,max-cpu-compat= */
 
     QEMU_CAPS_LAST /* this must always be the last item */
 } virQEMUCapsFlags;

tests/qemucapabilitiesdata/caps_2.10.0.ppc64.xml

@@ -183,6 +183,7 @@
   <flag name='disk-share-rw'/>
   <flag name='iscsi.password-secret'/>
   <flag name='isa-serial'/>
+  <flag name='machine.pseries.max-cpu-compat'/>
   <version>2010000</version>
   <kvmVersion>0</kvmVersion>
   <microcodeVersion>383421</microcodeVersion>