hw/arm/virt: Introduce a RAS machine option

RAS Virtualization feature is not supported now, so add a RAS machine option and disable it by default. Reviewed-by: Peter Maydell <[email protected]> Signed-off-by: Dongjiu Geng <[email protected]> Signed-off-by: Xiang Zheng <[email protected]> Reviewed-by: Jonathan Cameron <[email protected]> Reviewed-by: Igor Mammedov <[email protected]> Message-id: [email protected] Signed-off-by: Peter Maydell <[email protected]>
dreddy · May 14, 2020 · 2afa8c8 · 2afa8c8
1 parent 1439f21
commit 2afa8c8
Show file tree

Hide file tree

Showing 2 changed files with 24 additions and 0 deletions.
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
@@ -1995,6 +1995,20 @@ static void virt_set_acpi(Object *obj, Visitor *v, const char *name,
     visit_type_OnOffAuto(v, name, &vms->acpi, errp);
 }
 
+static bool virt_get_ras(Object *obj, Error **errp)
+{
+    VirtMachineState *vms = VIRT_MACHINE(obj);
+
+    return vms->ras;
+}
+
+static void virt_set_ras(Object *obj, bool value, Error **errp)
+{
+    VirtMachineState *vms = VIRT_MACHINE(obj);
+
+    vms->ras = value;
+}
+
 static char *virt_get_gic_version(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2327,6 +2341,15 @@ static void virt_instance_init(Object *obj)
                                     "Valid values are none and smmuv3",
                                     NULL);
 
+    /* Default disallows RAS instantiation */
+    vms->ras = false;
+    object_property_add_bool(obj, "ras", virt_get_ras,
+                             virt_set_ras, NULL);
+    object_property_set_description(obj, "ras",
+                                    "Set on/off to enable/disable reporting host memory errors "
+                                    "to a KVM guest using ACPI and guest external abort exceptions",
+                                    NULL);
+
     vms->irqmap = a15irqmap;
 
     virt_flash_create(vms);

diff --git a/include/hw/arm/virt.h b/include/hw/arm/virt.h
@@ -132,6 +132,7 @@ typedef struct {
     bool highmem_ecam;
     bool its;
     bool virt;
+    bool ras;
     OnOffAuto acpi;
     VirtGICType gic_version;
     VirtIOMMUType iommu;