[libvirt] [PATCH 8/8] qemu: domcaps: Simplify adding new domaincaps based on qemu caps
Add a helper which converts qemu emulator capabilities to the domain
capability XML. This will simplify future additions of new features.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/qemu/qemu_capabilities.c | 39 ++++++++++++++++++++++++++----------
1 file changed, 28 insertions(+), 11 deletions(-)
diff --git a/src/qemu/qemu_capabilities.c b/src/qemu/qemu_capabilities.c
index a1fbf0da34..483c3fcf0f 100644
--- a/src/qemu/qemu_capabilities.c
+++ b/src/qemu/qemu_capabilities.c
@@ -5281,12 +5281,35 @@ virQEMUCapsFillDomainCPUCaps(virCapsPtr caps,
}
+struct virQEMUCapsDomainFeatureCapabilityTuple {
+ virDomainCapsFeature domcap;
+ virQEMUCapsFlags qemucap;
+};
+
+/**
+ * This maps the qemu features to the entries in <features> of the domain
+ * capability XML. Use QEMU_CAPS_LAST as qemucap to always enable the feature.
+ */
+static const struct virQEMUCapsDomainFeatureCapabilityTuple domCapsTuples[] = {
+ { VIR_DOMAIN_CAPS_FEATURE_IOTHREADS, QEMU_CAPS_OBJECT_IOTHREAD },
+ { VIR_DOMAIN_CAPS_FEATURE_VMCOREINFO, QEMU_CAPS_DEVICE_VMCOREINFO },
+ { VIR_DOMAIN_CAPS_FEATURE_GENID, QEMU_CAPS_DEVICE_VMGENID },
+};
+
+
static void
-virQEMUCapsFillDomainIOThreadCaps(virQEMUCapsPtr qemuCaps,
- virDomainCapsPtr domCaps)
+virQEMUCapsFillDomainFeaturesFromQEMUCaps(virQEMUCapsPtr qemuCaps,
+ virDomainCapsPtr domCaps)
{
- domCaps->features[VIR_DOMAIN_CAPS_FEATURE_IOTHREADS] = virTristateBoolFromBool(
- virQEMUCapsGet(qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD));
+ size_t i;
+
+ virDomainCapsFeaturesInitUnsupported(domCaps);
+
+ for (i = 0; i < G_N_ELEMENTS(domCapsTuples); i++) {
+ if (domCapsTuples[i].qemucap == QEMU_CAPS_LAST ||
+ virQEMUCapsGet(qemuCaps, domCapsTuples[i].qemucap))
+ domCaps->features[domCapsTuples[i].domcap] = VIR_TRISTATE_BOOL_YES;
+ }
}
@@ -5572,6 +5595,7 @@ virQEMUCapsFillDomainCaps(virCapsPtr caps,
virDomainCapsDeviceRNGPtr rng = &domCaps->rng;
virDomainCapsFeaturesInitUnsupported(domCaps);
+ virQEMUCapsFillDomainFeaturesFromQEMUCaps(qemuCaps, domCaps);
domCaps->maxvcpus = virQEMUCapsGetMachineMaxCpus(qemuCaps,
domCaps->machine);
@@ -5584,12 +5608,6 @@ virQEMUCapsFillDomainCaps(virCapsPtr caps,
domCaps->maxvcpus = MIN(domCaps->maxvcpus, hostmaxvcpus);
}
- domCaps->features[VIR_DOMAIN_CAPS_FEATURE_VMCOREINFO] = virTristateBoolFromBool(
- virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMCOREINFO));
-
- domCaps->features[VIR_DOMAIN_CAPS_FEATURE_GENID] = virTristateBoolFromBool(
- virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VMGENID));
-
if (virQEMUCapsFillDomainOSCaps(os,
domCaps->machine,
domCaps->arch,
@@ -5598,7 +5616,6 @@ virQEMUCapsFillDomainCaps(virCapsPtr caps,
return -1;
virQEMUCapsFillDomainCPUCaps(caps, qemuCaps, domCaps);
- virQEMUCapsFillDomainIOThreadCaps(qemuCaps, domCaps);
virQEMUCapsFillDomainDeviceDiskCaps(qemuCaps, domCaps->machine, disk);
virQEMUCapsFillDomainDeviceGraphicsCaps(qemuCaps, graphics);
virQEMUCapsFillDomainDeviceVideoCaps(qemuCaps, video);
--
2.23.0