KVM: selftests: Make test skipping consistent

Signed-off-by: Andrew Jones <drjones@redhat.com>
Message-Id: <20201111122636.73346-12-drjones@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

tools/testing/selftests/kvm/x86_64/kvm_pv_test.c

@@ -211,8 +211,8 @@ int main(void)
 	struct kvm_vm *vm;
 
 	if (!kvm_check_cap(KVM_CAP_ENFORCE_PV_FEATURE_CPUID)) {
-		pr_info("will skip kvm paravirt restriction tests.\n");
-		return 0;
+		print_skip("KVM_CAP_ENFORCE_PV_FEATURE_CPUID not supported");
+		exit(KSFT_SKIP);
 	}
 
 	vm = vm_create_default(VCPU_ID, 0, guest_main);

tools/testing/selftests/kvm/x86_64/user_msr_test.c

@@ -209,7 +209,11 @@ int main(int argc, char *argv[])
 	run = vcpu_state(vm, VCPU_ID);
 
 	rc = kvm_check_cap(KVM_CAP_X86_USER_SPACE_MSR);
-	TEST_ASSERT(rc, "KVM_CAP_X86_USER_SPACE_MSR is available");
+	if (!rc) {
+		print_skip("KVM_CAP_X86_USER_SPACE_MSR not supported");
+		exit(KSFT_SKIP);
+	}
+
 	vm_enable_cap(vm, &cap);
 
 	rc = kvm_check_cap(KVM_CAP_X86_MSR_FILTER);

tools/testing/selftests/kvm/x86_64/vmx_preemption_timer_test.c

@@ -169,6 +169,11 @@ int main(int argc, char *argv[])
 	 */
 	nested_vmx_check_supported();
 
+	if (!kvm_check_cap(KVM_CAP_NESTED_STATE)) {
+		print_skip("KVM_CAP_NESTED_STATE not supported");
+		exit(KSFT_SKIP);
+	}
+
 	/* Create VM */
 	vm = vm_create_default(VCPU_ID, 0, guest_code);
 	vcpu_set_cpuid(vm, VCPU_ID, kvm_get_supported_cpuid());
@@ -176,13 +181,8 @@ int main(int argc, char *argv[])
 
 	vcpu_regs_get(vm, VCPU_ID, &regs1);
 
-	if (kvm_check_cap(KVM_CAP_NESTED_STATE)) {
 	vcpu_alloc_vmx(vm, &vmx_pages_gva);
 	vcpu_args_set(vm, VCPU_ID, 1, vmx_pages_gva);
-	} else {
-		pr_info("will skip vmx preemption timer checks\n");
-		goto done;
-	}
 
 	for (stage = 1;; stage++) {
 		_vcpu_run(vm, VCPU_ID);