From: Peng Hao <peng.hao2@zte.com.cn>

Add the option to turn on/off the pvpanic-mmio device in virt machine.

Signed-off-by: Peng Hao <peng.hao2@zte.com.cn>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Signed-off-by: Mihai Carabas <mihai.carabas@oracle.com>
---
 hw/arm/virt.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 63f09a6..7548977 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -2161,6 +2161,20 @@ static void virt_set_mte(Object *obj, bool value, Error **errp)
     vms->mte = value;
 }
 
+static bool virt_get_pvpanic(Object *obj, Error **errp)
+{
+    VirtMachineState *vms = VIRT_MACHINE(obj);
+
+    return vms->pvpanic;
+}
+
+static void virt_set_pvpanic(Object *obj, bool value, Error **errp)
+{
+    VirtMachineState *vms = VIRT_MACHINE(obj);
+
+    vms->pvpanic = value;
+}
+
 static char *virt_get_gic_version(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2594,6 +2608,14 @@ static void virt_instance_init(Object *obj)
                                     "guest CPU which implements the ARM "
                                     "Memory Tagging Extension");
 
+    /* Default disallows pvpanic-mmio instantiation */
+    vms->pvpanic = false;
+    object_property_add_bool(obj, "pvpanic", virt_get_pvpanic,
+                             virt_set_pvpanic);
+    object_property_set_description(obj, "pvpanic",
+                                    "Set on/off to enable/disable "
+                                    "PVPANIC MMIO device");
+
     vms->irqmap = a15irqmap;
 
     virt_flash_create(vms);
-- 
1.8.3.1