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authorBharata B Rao <bharata@linux.vnet.ibm.com>2016-07-27 10:44:42 +0530
committerDavid Gibson <david@gibson.dropbear.id.au>2016-07-29 12:02:31 +1000
commit62be8b044adf47327ebefdefb25f28a40316ebd0 (patch)
tree2240ff0961d54240786ce98dfe9a474960da4d9a
parentbcd510b141eee18b7fcd445f8c9ea3be347d16fc (diff)
downloadqemu-62be8b044adf47327ebefdefb25f28a40316ebd0.tar.gz
spapr: Prevent boot CPU core removal
Boot CPU is assumed to be always present in QEMU code. So until that assumptions are gone, deny removal request. In another words, QEMU won't support boot CPU core hot-unplug. Signed-off-by: Bharata B Rao <bharata@linux.vnet.ibm.com> [dwg: Tweaked error message for clarity] Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
-rw-r--r--hw/ppc/spapr_cpu_core.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 5a132bfa1a..ec81ee6088 100644
--- a/hw/ppc/spapr_cpu_core.c
+++ b/hw/ppc/spapr_cpu_core.c
@@ -133,6 +133,11 @@ void spapr_core_unplug(HotplugHandler *hotplug_dev, DeviceState *dev,
sPAPRDRConnectorClass *drck;
Error *local_err = NULL;
+ if (index == 0) {
+ error_setg(errp, "Boot CPU core may not be unplugged");
+ return;
+ }
+
g_assert(drc);
drck = SPAPR_DR_CONNECTOR_GET_CLASS(drc);