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-rw-r--r--hw/arm/virt.c3
-rw-r--r--hw/intc/arm_gicv3_common.c1
-rw-r--r--hw/intc/arm_gicv3_kvm.c21
3 files changed, 25 insertions, 0 deletions
diff --git a/hw/arm/virt.c b/hw/arm/virt.c
index 394e8b5301..c9f3991937 100644
--- a/hw/arm/virt.c
+++ b/hw/arm/virt.c
@@ -833,6 +833,9 @@ static void create_gic(VirtMachineState *vms, MemoryRegion *mem)
                                          OBJECT(mem), &error_fatal);
                 qdev_prop_set_bit(vms->gic, "has-lpi", true);
             }
+        } else if (vms->virt) {
+            qdev_prop_set_uint32(vms->gic, "maintenance-interrupt-id",
+                                 ARCH_GIC_MAINT_IRQ);
         }
     } else {
         if (!kvm_irqchip_in_kernel()) {
diff --git a/hw/intc/arm_gicv3_common.c b/hw/intc/arm_gicv3_common.c
index 1cee68193c..e438d8c042 100644
--- a/hw/intc/arm_gicv3_common.c
+++ b/hw/intc/arm_gicv3_common.c
@@ -612,6 +612,7 @@ static const Property arm_gicv3_common_properties[] = {
     DEFINE_PROP_BOOL("has-lpi", GICv3State, lpi_enable, 0),
     DEFINE_PROP_BOOL("has-nmi", GICv3State, nmi_support, 0),
     DEFINE_PROP_BOOL("has-security-extensions", GICv3State, security_extn, 0),
+    DEFINE_PROP_UINT32("maintenance-interrupt-id", GICv3State, maint_irq, 0),
     /*
      * Compatibility property: force 8 bits of physical priority, even
      * if the CPU being emulated should have fewer.
diff --git a/hw/intc/arm_gicv3_kvm.c b/hw/intc/arm_gicv3_kvm.c
index 3be3bf6c28..b30aac7aee 100644
--- a/hw/intc/arm_gicv3_kvm.c
+++ b/hw/intc/arm_gicv3_kvm.c
@@ -22,6 +22,7 @@
 #include "qemu/osdep.h"
 #include "qapi/error.h"
 #include "hw/intc/arm_gicv3_common.h"
+#include "hw/arm/virt.h"
 #include "qemu/error-report.h"
 #include "qemu/module.h"
 #include "system/kvm.h"
@@ -825,6 +826,26 @@ static void kvm_arm_gicv3_realize(DeviceState *dev, Error **errp)
         return;
     }
 
+    if (s->maint_irq) {
+        int ret;
+
+        ret = kvm_device_check_attr(s->dev_fd,
+                                    KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ, 0);
+        if (!ret) {
+            error_setg_errno(errp, errno,
+                             "VGICv3 setting maintenance IRQ is not "
+                             "supported by this host kernel");
+            return;
+        }
+
+        ret = kvm_device_access(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_MAINT_IRQ, 0,
+                                &s->maint_irq, true, errp);
+        if (ret) {
+            error_setg_errno(errp, errno, "Failed to set VGIC maintenance IRQ");
+            return;
+       }
+    }
+
     multiple_redist_region_allowed =
         kvm_device_check_attr(s->dev_fd, KVM_DEV_ARM_VGIC_GRP_ADDR,
                               KVM_VGIC_V3_ADDR_TYPE_REDIST_REGION);