[libvirt] [PATCH] qemu: Limit refresh of CPU halted state to s390
Refreshing the halted state can cause VM performance issues. Since
s390 is currently the only architecture with a known interest in
the halted state, we're avoiding to call QEMU on other platforms.
Signed-off-by: Viktor Mihajlovski <mihajlov(a)linux.vnet.ibm.com>
---
src/qemu/qemu_domain.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c
index df433c2..d2c833f 100644
--- a/src/qemu/qemu_domain.c
+++ b/src/qemu/qemu_domain.c
@@ -8634,6 +8634,10 @@ qemuDomainRefreshVcpuHalted(virQEMUDriverPtr driver,
if (vm->def->virtType == VIR_DOMAIN_VIRT_QEMU)
return 0;
+ /* Only supported on s390(x) */
+ if (!ARCH_IS_S390(vm->def->os.arch))
+ return 0;
+
if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0)
return -1;
--
1.9.1