1 files changed, 61 insertions, 0 deletions
diff --git a/pkg/sentry/platform/kvm/machine_arm64.go b/pkg/sentry/platform/kvm/machine_arm64.go
new file mode 100644
index 000000000..b7e2cfb9d
--- /dev/null
+++ b/pkg/sentry/platform/kvm/machine_arm64.go
@@ -0,0 +1,61 @@
+// Copyright 2019 The gVisor Authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package kvm
+
+// Get all read-only physicalRegions.
+func rdonlyRegionsForSetMem() (phyRegions []physicalRegion) {
+	var rdonlyRegions []region
+
+	applyVirtualRegions(func(vr virtualRegion) {
+		if excludeVirtualRegion(vr) {
+			return
+		}
+
+		if !vr.accessType.Write && vr.accessType.Read {
+			rdonlyRegions = append(rdonlyRegions, vr.region)
+		}
+	})
+
+	for _, r := range rdonlyRegions {
+		physical, _, ok := translateToPhysical(r.virtual)
+		if !ok {
+			continue
+		}
+
+		phyRegions = append(phyRegions, physicalRegion{
+			region: region{
+				virtual: r.virtual,
+				length:  r.length,
+			},
+			physical: physical,
+		})
+	}
+
+	return phyRegions
+}
+
+// Get all available physicalRegions.
+func availableRegionsForSetMem() (phyRegions []physicalRegion) {
+	var excludeRegions []region
+	applyVirtualRegions(func(vr virtualRegion) {
+		if !vr.accessType.Write {
+			excludeRegions = append(excludeRegions, vr.region)
+		}
+	})
+
+	phyRegions = computePhysicalRegions(excludeRegions)
+
+	return phyRegions
+}