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-rw-r--r--virt/kvm/arm/pvtime.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/virt/kvm/arm/pvtime.c b/virt/kvm/arm/pvtime.c
new file mode 100644
index 000000000000..9fc69fc2d683
--- /dev/null
+++ b/virt/kvm/arm/pvtime.c
@@ -0,0 +1,20 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2019 Arm Ltd.
+
+#include <linux/arm-smccc.h>
+
+#include <kvm/arm_hypercalls.h>
+
+long kvm_hypercall_pv_features(struct kvm_vcpu *vcpu)
+{
+ u32 feature = smccc_get_arg1(vcpu);
+ long val = SMCCC_RET_NOT_SUPPORTED;
+
+ switch (feature) {
+ case ARM_SMCCC_HV_PV_TIME_FEATURES:
+ val = SMCCC_RET_SUCCESS;
+ break;
+ }
+
+ return val;
+}