diff options
Diffstat (limited to 'arch/arm64/kvm/hyp.S')
| -rw-r--r-- | arch/arm64/kvm/hyp.S | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S index 0ccdcbbef3c2..48f19a37b3df 100644 --- a/arch/arm64/kvm/hyp.S +++ b/arch/arm64/kvm/hyp.S @@ -17,10 +17,12 @@ #include <linux/linkage.h> +#include <asm/alternative.h> #include <asm/assembler.h> +#include <asm/cpufeature.h> /* - * u64 kvm_call_hyp(void *hypfn, ...); + * u64 __kvm_call_hyp(void *hypfn, ...); * * This is not really a variadic function in the classic C-way and care must * be taken when calling this to ensure parameters are passed in registers @@ -37,7 +39,12 @@ * used to implement __hyp_get_vectors in the same way as in * arch/arm64/kernel/hyp_stub.S. */ -ENTRY(kvm_call_hyp) +ENTRY(__kvm_call_hyp) +alternative_if_not ARM64_HAS_VIRT_HOST_EXTN hvc #0 ret -ENDPROC(kvm_call_hyp) +alternative_else + b __vhe_hyp_call + nop +alternative_endif +ENDPROC(__kvm_call_hyp) |