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-rw-r--r--arch/arm64/kvm/hyp.S7
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S
index 0ccdcbbef3c2..0689a74e6ba0 100644
--- a/arch/arm64/kvm/hyp.S
+++ b/arch/arm64/kvm/hyp.S
@@ -17,7 +17,9 @@
#include <linux/linkage.h>
+#include <asm/alternative.h>
#include <asm/assembler.h>
+#include <asm/cpufeature.h>
/*
* u64 kvm_call_hyp(void *hypfn, ...);
@@ -38,6 +40,11 @@
* arch/arm64/kernel/hyp_stub.S.
*/
ENTRY(kvm_call_hyp)
+alternative_if_not ARM64_HAS_VIRT_HOST_EXTN
hvc #0
ret
+alternative_else
+ b __vhe_hyp_call
+ nop
+alternative_endif
ENDPROC(kvm_call_hyp)