[libvirt] [PATCH 8/9] cpu: Introduce virCPUGetHostIsSupported
Sometimes we want to call virCPUGetHost only when it is implemented for
a given architecture to avoid logging expected and possibly misleading
errors. The new virCPUGetHostIsSupported API may be used to guard such
calls to virCPUGetHost.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
---
src/cpu/cpu.c | 20 ++++++++++++++++++++
src/cpu/cpu.h | 3 +++
src/libvirt_private.syms | 1 +
3 files changed, 24 insertions(+)
diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
index 8a407ac18..702b14dbb 100644
--- a/src/cpu/cpu.c
+++ b/src/cpu/cpu.c
@@ -358,6 +358,26 @@ virCPUDataFree(virCPUDataPtr data)
/**
+ * virCPUGetHostIsSupported:
+ *
+ * @arch: CPU architecture
+ *
+ * Check whether virCPUGetHost is supported for @arch.
+ *
+ * Returns true if virCPUGetHost is supported, false otherwise.
+ */
+bool
+virCPUGetHostIsSupported(virArch arch)
+{
+ struct cpuArchDriver *driver;
+
+ VIR_DEBUG("arch=%s", virArchToString(arch));
+
+ return (driver = cpuGetSubDriver(arch)) && driver->getHost;
+}
+
+
+/**
* virCPUGetHost:
*
* @arch: CPU architecture
diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
index 352445c40..c6ca111e9 100644
--- a/src/cpu/cpu.h
+++ b/src/cpu/cpu.h
@@ -183,6 +183,9 @@ virCPUDataNew(virArch arch);
void
virCPUDataFree(virCPUDataPtr data);
+bool
+virCPUGetHostIsSupported(virArch arch);
+
virCPUDefPtr
virCPUGetHost(virArch arch,
virCPUType type,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 8509f639e..d2b7b5cd1 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1033,6 +1033,7 @@ virCPUDataNew;
virCPUDataParse;
virCPUExpandFeatures;
virCPUGetHost;
+virCPUGetHostIsSupported;
virCPUGetModels;
virCPUProbeHost;
virCPUTranslate;
--
2.12.2