After live change of cpu counts, the number of processor threads is
verified. This patch makes use of this approach to check if qemu ignored
the request for cpu hot-unplug and report an appropriate message.
---
src/qemu/qemu_driver.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index 39175f4..c4be130 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3697,6 +3697,15 @@ static int qemuDomainHotplugVcpus(virQEMUDriverPtr
driver,
goto cleanup;
}
+ /* check if hotplug has failed */
+ if (vcpus < oldvcpus && ncpupids == oldvcpus) {
+ virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
+ _("qemu didn't unplug the vCPUs properly"));
+ vcpus = oldvcpus;
+ ret = -1;
+ goto cleanup;
+ }
+
if (ncpupids != vcpus) {
virReportError(VIR_ERR_INTERNAL_ERROR,
_("got wrong number of vCPU pids from QEMU monitor. "
--
1.8.1
--
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