From 170a9c7dc044a0094b48c658e0d57c97c4b854e0 Mon Sep 17 00:00:00 2001
From: Eric Auger <eric.auger@redhat.com>
Date: Wed, 30 Jun 2021 13:38:03 +0200
Subject: [PATCH 03/13] arm/virt: Enable ARM RAS support

RH-Author: Eric Auger <eric.auger@redhat.com>
RH-MergeRequest: 19: arm/virt: Support RAS
RH-Commit: [3/3] 1572368bb0f47463a1f6ffa3f5baa97242440c98 (eauger1/centos-qemu-kvm)
RH-Bugzilla: 1838608
RH-Acked-by: Gavin Shan <gshan@redhat.com>
RH-Acked-by: Andrew Jones <drjones@redhat.com>
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>

We want to support ARM RAS (Reliability, Availability & Serviceability).
So let's register the RAS property as a class property. It is
unset by default.

Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
---
 hw/arm/virt.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index fe1111d527..0084935ec8 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -2281,7 +2281,6 @@ static void virt_set_acpi(Object *obj, Visitor *v, const char *name,
     visit_type_OnOffAuto(v, name, &vms->acpi, errp);
 }
 
-#if 0 /* Disabled for Red Hat Enterprise Linux */
 static bool virt_get_ras(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -2296,6 +2295,7 @@ static void virt_set_ras(Object *obj, bool value, Error **errp)
     vms->ras = value;
 }
 
+#if 0 /* Disabled for Red Hat Enterprise Linux */
 static bool virt_get_mte(Object *obj, Error **errp)
 {
     VirtMachineState *vms = VIRT_MACHINE(obj);
@@ -3013,6 +3013,12 @@ static void rhel_machine_class_init(ObjectClass *oc, void *data)
                                           "Set the IOMMU type. "
                                           "Valid values are none and smmuv3");
 
+    object_class_property_add_bool(oc, "ras", virt_get_ras,
+                                   virt_set_ras);
+    object_class_property_set_description(oc, "ras",
+                                          "Set on/off to enable/disable reporting host memory errors "
+                                          "to a KVM guest using ACPI and guest external abort exceptions");
+
     object_class_property_add_bool(oc, "its", virt_get_its,
                                    virt_set_its);
     object_class_property_set_description(oc, "its",
@@ -3063,7 +3069,7 @@ static void rhel_virt_instance_init(Object *obj)
     /* Default disallows iommu instantiation */
     vms->iommu = VIRT_IOMMU_NONE;
 
-    /* Default disallows RAS instantiation and is non-configurable for RHEL */
+    /* Default disallows RAS instantiation */
     vms->ras = false;
 
     /* MTE is disabled by default and non-configurable for RHEL */
-- 
2.27.0