qemu: Do not fail virConnectCompareCPU if host CPU is not known

When host CPU could not be properly detected, virConnectCompareCPU will
just report that any CPU is incompatible with host CPU instead of
failing.

diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 29ebb4c5402c20dd49ceb92e71928ede7c38a3fa..451159abd81c30806003c3cbe1051a38214dc5d3 100644 (file)
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -9423,9 +9423,12 @@ qemuCPUCompare(virConnectPtr conn,
 
     qemuDriverLock(driver);
 
-    if (!driver->caps || !driver->caps->host.cpu) {
-        qemuReportError(VIR_ERR_OPERATION_INVALID,
-                        "%s", _("cannot get host CPU capabilities"));
+    if (!driver->caps) {
+        qemuReportError(VIR_ERR_INTERNAL_ERROR,
+                        "%s", _("cannot get host capabilities"));
+    } else if (!driver->caps->host.cpu) {
+        VIR_WARN("cannot get host CPU capabilities");
+        ret = VIR_CPU_COMPARE_INCOMPATIBLE;
     } else {
         ret = cpuCompareXML(driver->caps->host.cpu, xmlDesc);
     }