diff options
Diffstat (limited to 'tools/testing/selftests/kvm/x86_64/sev_smoke_test.c')
| -rw-r--r-- | tools/testing/selftests/kvm/x86_64/sev_smoke_test.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/x86_64/sev_smoke_test.c b/tools/testing/selftests/kvm/x86_64/sev_smoke_test.c index 54d72efd9b4d..026779f3ed06 100644 --- a/tools/testing/selftests/kvm/x86_64/sev_smoke_test.c +++ b/tools/testing/selftests/kvm/x86_64/sev_smoke_test.c @@ -12,6 +12,21 @@ #include "linux/psp-sev.h" #include "sev.h" + +static void guest_sev_es_code(void) +{ + /* TODO: Check CPUID after GHCB-based hypercall support is added. */ + GUEST_ASSERT(rdmsr(MSR_AMD64_SEV) & MSR_AMD64_SEV_ENABLED); + GUEST_ASSERT(rdmsr(MSR_AMD64_SEV) & MSR_AMD64_SEV_ES_ENABLED); + + /* + * TODO: Add GHCB and ucall support for SEV-ES guests. For now, simply + * force "termination" to signal "done" via the GHCB MSR protocol. + */ + wrmsr(MSR_AMD64_SEV_ES_GHCB, GHCB_MSR_TERM_REQ); + __asm__ __volatile__("rep; vmmcall"); +} + static void guest_sev_code(void) { GUEST_ASSERT(this_cpu_has(X86_FEATURE_SEV)); @@ -31,6 +46,16 @@ static void test_sev(void *guest_code, uint64_t policy) for (;;) { vcpu_run(vcpu); + if (policy & SEV_POLICY_ES) { + TEST_ASSERT(vcpu->run->exit_reason == KVM_EXIT_SYSTEM_EVENT, + "Wanted SYSTEM_EVENT, got %s", + exit_reason_str(vcpu->run->exit_reason)); + TEST_ASSERT_EQ(vcpu->run->system_event.type, KVM_SYSTEM_EVENT_SEV_TERM); + TEST_ASSERT_EQ(vcpu->run->system_event.ndata, 1); + TEST_ASSERT_EQ(vcpu->run->system_event.data[0], GHCB_MSR_TERM_REQ); + break; + } + switch (get_ucall(vcpu, &uc)) { case UCALL_SYNC: continue; @@ -54,5 +79,10 @@ int main(int argc, char *argv[]) test_sev(guest_sev_code, SEV_POLICY_NO_DBG); test_sev(guest_sev_code, 0); + if (kvm_cpu_has(X86_FEATURE_SEV_ES)) { + test_sev(guest_sev_es_code, SEV_POLICY_ES | SEV_POLICY_NO_DBG); + test_sev(guest_sev_es_code, SEV_POLICY_ES); + } + return 0; } |