From: Bharata B Rao <bhar...@linux.vnet.ibm.com>
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 <bhar...@linux.vnet.ibm.com>
[dwg: Tweaked error message for clarity]
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
hw/ppc/spapr_cpu_core.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/hw/ppc/spapr_cpu_core.c b/hw/ppc/spapr_cpu_core.c
index 5a132bf..ec81ee6 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);
--
2.7.4
