On 3/5/2025 11:59 PM, Pratik R. Sampat wrote:
Abstract rep vmmcall coded into the vmgexit helper for the sev library.
No functional change intended.
Signed-off-by: Pratik R. Sampat prsampat@amd.com
Reviewed-by: Pankaj Gupta pankaj.gupta@amd.com
tools/testing/selftests/kvm/include/x86/sev.h | 5 +++++ tools/testing/selftests/kvm/x86/sev_smoke_test.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kvm/include/x86/sev.h b/tools/testing/selftests/kvm/include/x86/sev.h index 82c11c81a956..3003dc837fb7 100644 --- a/tools/testing/selftests/kvm/include/x86/sev.h +++ b/tools/testing/selftests/kvm/include/x86/sev.h @@ -71,6 +71,11 @@ kvm_static_assert(SEV_RET_SUCCESS == 0); void sev_vm_init(struct kvm_vm *vm); void sev_es_vm_init(struct kvm_vm *vm); +static inline void vmgexit(void) +{
- __asm__ __volatile__("rep; vmmcall");
+}
- static inline void sev_register_encrypted_memory(struct kvm_vm *vm, struct userspace_mem_region *region) {
diff --git a/tools/testing/selftests/kvm/x86/sev_smoke_test.c b/tools/testing/selftests/kvm/x86/sev_smoke_test.c index a1a688e75266..6812b94bf5b6 100644 --- a/tools/testing/selftests/kvm/x86/sev_smoke_test.c +++ b/tools/testing/selftests/kvm/x86/sev_smoke_test.c @@ -27,7 +27,7 @@ static void guest_sev_es_code(void) * force "termination" to signal "done" via the GHCB MSR protocol. */ wrmsr(MSR_AMD64_SEV_ES_GHCB, GHCB_MSR_TERM_REQ);
- __asm__ __volatile__("rep; vmmcall");
- vmgexit(); }
static void guest_sev_code(void)