KVM: selftests: Fix filename reporting in guest asserts

Fix filename reporting in guest asserts by ensuring the GUEST_ASSERT
macro records __FILE__ and substituting REPORT_GUEST_ASSERT for many
repetitive calls to TEST_FAIL.

Previously filename was reported by using __FILE__ directly in the
selftest, wrongly assuming it would always be the same as where the
assertion failed.
Signed-off-by: NColton Lewis <coltonlewis@google.com>
Reported-by: NRicardo Koller <ricarkol@google.com>
Fixes: 4e18bccc
Link: https://lore.kernel.org/r/20220615193116.806312-5-coltonlewis@google.com
[sean: convert more TEST_FAIL => REPORT_GUEST_ASSERT instances]
Signed-off-by: NSean Christopherson <seanjc@google.com>

tools/testing/selftests/kvm/aarch64/arch_timer.c

@@ -231,10 +231,13 @@ static void *test_vcpu_run(void *arg)
 		break;
 	case UCALL_ABORT:
 		sync_global_from_guest(vm, *shared_data);
-		TEST_FAIL("%s at %s:%ld\n\tvalues: %lu, %lu; %lu, vcpu: %u; stage: %u; iter: %u",
-			(const char *)uc.args[0], __FILE__, uc.args[1],
-			uc.args[2], uc.args[3], uc.args[4], vcpu_idx,
-			shared_data->guest_stage, shared_data->nr_iter);
+		REPORT_GUEST_ASSERT_N(uc, "values: %lu, %lu; %lu, vcpu %u; stage; %u; iter: %u",
+				      GUEST_ASSERT_ARG(uc, 0),
+				      GUEST_ASSERT_ARG(uc, 1),
+				      GUEST_ASSERT_ARG(uc, 2),
+				      vcpu_idx,
+				      shared_data->guest_stage,
+				      shared_data->nr_iter);
 		break;
 	default:
 		TEST_FAIL("Unexpected guest exit\n");

tools/testing/selftests/kvm/aarch64/debug-exceptions.c

@@ -283,9 +283,7 @@ int main(int argc, char *argv[])
 				stage, (ulong)uc.args[1]);
 			break;
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld\n\tvalues: %#lx, %#lx",
-				(const char *)uc.args[0],
-				__FILE__, uc.args[1], uc.args[2], uc.args[3]);
+			REPORT_GUEST_ASSERT_2(uc, "values: %#lx, %#lx");
 			break;
 		case UCALL_DONE:
 			goto done;

tools/testing/selftests/kvm/aarch64/hypercalls.c

@@ -291,9 +291,10 @@ static void test_run(void)
 			guest_done = true;
 			break;
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld\n\tvalues: 0x%lx, 0x%lx; 0x%lx, stage: %u",
-			(const char *)uc.args[0], __FILE__, uc.args[1],
-			uc.args[2], uc.args[3], uc.args[4], stage);
+			REPORT_GUEST_ASSERT_N(uc, "values: 0x%lx, 0x%lx; 0x%lx, stage: %u",
+					      GUEST_ASSERT_ARG(uc, 0),
+					      GUEST_ASSERT_ARG(uc, 1),
+					      GUEST_ASSERT_ARG(uc, 2), stage);
 			break;
 		default:
 			TEST_FAIL("Unexpected guest exit\n");

tools/testing/selftests/kvm/aarch64/psci_test.c

@@ -94,8 +94,7 @@ static void enter_guest(struct kvm_vcpu *vcpu)
 
 	vcpu_run(vcpu);
 	if (get_ucall(vcpu, &uc) == UCALL_ABORT)
-		TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0], __FILE__,
-			  uc.args[1]);
+		REPORT_GUEST_ASSERT(uc);
 }
 
 static void assert_vcpu_reset(struct kvm_vcpu *vcpu)

tools/testing/selftests/kvm/aarch64/vgic_irq.c

@@ -782,9 +782,7 @@ static void test_vgic(uint32_t nr_irqs, bool level_sensitive, bool eoi_split)
 			run_guest_cmd(vcpu, gic_fd, &inject_args, &args);
 			break;
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld\n\tvalues: %#lx, %#lx",
-					(const char *)uc.args[0],
-					__FILE__, uc.args[1], uc.args[2], uc.args[3]);
+			REPORT_GUEST_ASSERT_2(uc, "values: %#lx, %#lx");
 			break;
 		case UCALL_DONE:
 			goto done;

tools/testing/selftests/kvm/include/ucall_common.h

@@ -41,11 +41,12 @@ enum guest_assert_builtin_args {
 	GUEST_ASSERT_BUILTIN_NARGS
 };
 
-#define __GUEST_ASSERT(_condition, _condstr, _nargs, _args...) do {    \
+#define __GUEST_ASSERT(_condition, _condstr, _nargs, _args...)		\
+do {									\
 	if (!(_condition))						\
-		ucall(UCALL_ABORT, 2 + _nargs,                          \
-			"Failed guest assert: "                         \
-			_condstr, __LINE__, _args);                     \
+		ucall(UCALL_ABORT, GUEST_ASSERT_BUILTIN_NARGS + _nargs,	\
+		      "Failed guest assert: " _condstr,			\
+		      __FILE__, __LINE__, ##_args);			\
 } while (0)
 
 #define GUEST_ASSERT(_condition) \

tools/testing/selftests/kvm/memslot_perf_test.c

@@ -162,9 +162,7 @@ static void *vcpu_worker(void *__data)
 				goto done;
 			break;
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld, val = %lu",
-					(const char *)uc.args[0],
-					__FILE__, uc.args[1], uc.args[2]);
+			REPORT_GUEST_ASSERT_1(uc, "val = %lu");
 			break;
 		case UCALL_DONE:
 			goto done;

tools/testing/selftests/kvm/s390x/tprot.c

@@ -189,10 +189,8 @@ static void guest_code(void)
 								\
 	vcpu_run(__vcpu);					\
 	get_ucall(__vcpu, &uc);					\
-	if (uc.cmd == UCALL_ABORT) {						\
-		TEST_FAIL("line %lu: %s, hints: %lu, %lu", uc.args[1],		\
-			  (const char *)uc.args[0], uc.args[2], uc.args[3]);	\
-	}									\
+	if (uc.cmd == UCALL_ABORT)				\
+		REPORT_GUEST_ASSERT_2(uc, "hints: %lu, %lu");	\
 	ASSERT_EQ(uc.cmd, UCALL_SYNC);				\
 	ASSERT_EQ(uc.args[1], __stage);				\
 })

tools/testing/selftests/kvm/set_memory_region_test.c

@@ -88,8 +88,7 @@ static void *vcpu_worker(void *data)
 	}
 
 	if (run->exit_reason == KVM_EXIT_IO && cmd == UCALL_ABORT)
-		TEST_FAIL("%s at %s:%ld, val = %lu", (const char *)uc.args[0],
-			  __FILE__, uc.args[1], uc.args[2]);
+		REPORT_GUEST_ASSERT_1(uc, "val = %lu");
 
 	return NULL;
 }

tools/testing/selftests/kvm/steal_time.c

@@ -234,8 +234,7 @@ static void run_vcpu(struct kvm_vcpu *vcpu)
 	case UCALL_DONE:
 		break;
 	case UCALL_ABORT:
-		TEST_ASSERT(false, "%s at %s:%ld", (const char *)uc.args[0],
-			    __FILE__, uc.args[1]);
+		REPORT_GUEST_ASSERT(uc);
 	default:
 		TEST_ASSERT(false, "Unexpected exit: %s",
 			    exit_reason_str(vcpu->run->exit_reason));

tools/testing/selftests/kvm/system_counter_offset_test.c

@@ -83,8 +83,7 @@ static void handle_sync(struct ucall *uc, uint64_t start, uint64_t end)
 
 static void handle_abort(struct ucall *uc)
 {
-	TEST_FAIL("%s at %s:%ld", (const char *)uc->args[0],
-		  __FILE__, uc->args[1]);
+	REPORT_GUEST_ASSERT(*uc);
 }
 
 static void enter_guest(struct kvm_vcpu *vcpu)

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

@@ -373,8 +373,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-				  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			switch (uc.args[1]) {

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

@@ -132,8 +132,7 @@ static void run_vcpu(struct kvm_vcpu *vcpu, int stage)
 	case UCALL_DONE:
 		return;
 	case UCALL_ABORT:
-		TEST_ASSERT(false, "%s at %s:%ld\n\tvalues: %#lx, %#lx", (const char *)uc.args[0],
-			    __FILE__, uc.args[1], uc.args[2], uc.args[3]);
+		REPORT_GUEST_ASSERT_2(uc, "values: %#lx, %#lx");
 	default:
 		TEST_ASSERT(false, "Unexpected exit: %s",
 			    exit_reason_str(vcpu->run->exit_reason));

tools/testing/selftests/kvm/x86_64/cr4_cpuid_sync_test.c

@@ -94,7 +94,7 @@ int main(int argc, char *argv[])
 			vcpu_sregs_set(vcpu, &sregs);
 			break;
 		case UCALL_ABORT:
-			TEST_FAIL("Guest CR4 bit (OSXSAVE) unsynchronized with CPUID bit.");
+			REPORT_GUEST_ASSERT(uc);
 			break;
 		case UCALL_DONE:
 			goto done;

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

@@ -92,8 +92,7 @@ static void process_exit_on_emulation_error(struct kvm_vcpu *vcpu)
 
 static void do_guest_assert(struct ucall *uc)
 {
-	TEST_FAIL("%s at %s:%ld", (const char *)uc->args[0], __FILE__,
-		  uc->args[1]);
+	REPORT_GUEST_ASSERT(*uc);
 }
 
 static void check_for_guest_assert(struct kvm_vcpu *vcpu)

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

@@ -236,8 +236,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-		      		  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			break;

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

@@ -112,7 +112,7 @@ static void enter_guest(struct kvm_vcpu *vcpu)
 	case UCALL_DONE:
 		return;
 	case UCALL_ABORT:
-		TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0], __FILE__, uc.args[1]);
+		REPORT_GUEST_ASSERT(uc);
 	default:
 		TEST_FAIL("Unhandled ucall: %ld\nexit_reason: %u (%s)",
 			  uc.cmd, run->exit_reason, exit_reason_str(run->exit_reason));

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

@@ -234,8 +234,7 @@ int main(void)
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-				  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			break;

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

@@ -447,9 +447,7 @@ static void guest_test_msrs_access(void)
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld, MSR = %lx, vector = %lx",
-				  (const char *)uc.args[0], __FILE__,
-				  uc.args[1], uc.args[2], uc.args[3]);
+			REPORT_GUEST_ASSERT_2(uc, "MSR = %lx, vector = %lx");
 			return;
 		case UCALL_DONE:
 			break;
@@ -618,9 +616,7 @@ static void guest_test_hcalls_access(void)
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld, arg1 = %lx, arg2 = %lx",
-				  (const char *)uc.args[0], __FILE__,
-				  uc.args[1], uc.args[2], uc.args[3]);
+			REPORT_GUEST_ASSERT_2(uc, "arg1 = %lx, arg2 = %lx");
 			return;
 		case UCALL_DONE:
 			break;

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

@@ -145,8 +145,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-				  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			break;

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

@@ -71,8 +71,7 @@ static void handle_sync(struct ucall *uc, struct kvm_clock_data *start,
 
 static void handle_abort(struct ucall *uc)
 {
-	TEST_FAIL("%s at %s:%ld", (const char *)uc->args[0],
-		  __FILE__, uc->args[1]);
+	REPORT_GUEST_ASSERT(*uc);
 }
 
 static void setup_clock(struct kvm_vm *vm, struct test_case *test_case)

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

@@ -137,9 +137,7 @@ static void enter_guest(struct kvm_vcpu *vcpu)
 			pr_hcall(&uc);
 			break;
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld, vector = %lu",
-				  (const char *)uc.args[0], __FILE__,
-				  uc.args[1], uc.args[2]);
+			REPORT_GUEST_ASSERT_1(uc, "vector = %lu");
 			return;
 		case UCALL_DONE:
 			return;

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

@@ -100,9 +100,7 @@ int main(int argc, char *argv[])
 			testcase = uc.args[1];
 			break;
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld, testcase = %lx, vector = %ld",
-				  (const char *)uc.args[0], __FILE__,
-				  uc.args[1], uc.args[2], uc.args[3]);
+			REPORT_GUEST_ASSERT_2(uc, "testcase = %lx, vector = %ld");
 			goto done;
 		case UCALL_DONE:
 			goto done;

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

@@ -65,9 +65,7 @@ static void run_vcpu(struct kvm_vcpu *vcpu)
 					stage);
 			break;
 		case UCALL_ABORT:
-			TEST_ASSERT(false, "%s at %s:%ld\n\tvalues: %#lx, %#lx",
-						(const char *)uc.args[0], __FILE__,
-						uc.args[1], uc.args[2], uc.args[3]);
+			REPORT_GUEST_ASSERT_2(uc, "values: %#lx, %#lx");
 		default:
 			TEST_ASSERT(false, "Unexpected exit: %s",
 				    exit_reason_str(vcpu->run->exit_reason));

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

@@ -190,8 +190,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-			       	  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			break;

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

@@ -113,7 +113,7 @@ int main(int argc, char *argv[])
 
 	switch (get_ucall(vcpu, &uc)) {
 	case UCALL_ABORT:
-		TEST_FAIL("%s", (const char *)uc.args[0]);
+		REPORT_GUEST_ASSERT(uc);
 		break;
 		/* NOT REACHED */
 	case UCALL_DONE:

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

@@ -181,8 +181,7 @@ static void run_test(bool is_nmi)
 
 	switch (get_ucall(vcpu, &uc)) {
 	case UCALL_ABORT:
-		TEST_FAIL("%s at %s:%ld, vals = 0x%lx 0x%lx 0x%lx", (const char *)uc.args[0],
-			  __FILE__, uc.args[1], uc.args[2], uc.args[3], uc.args[4]);
+		REPORT_GUEST_ASSERT_3(uc, "vals = 0x%lx 0x%lx 0x%lx");
 		break;
 		/* NOT REACHED */
 	case UCALL_DONE:

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

@@ -58,7 +58,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s", (const char *)uc.args[0]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			break;

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

@@ -82,7 +82,7 @@ int main(void)
 	case UCALL_DONE:
 		break;
 	case UCALL_ABORT:
-		TEST_FAIL("%s", (const char *)uc.args[0]);
+		REPORT_GUEST_ASSERT(uc);
 	default:
 		TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
 	}

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

@@ -79,9 +79,7 @@ static void run_vcpu(struct kvm_vcpu *vcpu, int stage)
 	case UCALL_DONE:
 		return;
 	case UCALL_ABORT:
-		TEST_ASSERT(false, "%s at %s:%ld\n" \
-			    "\tvalues: %#lx, %#lx", (const char *)uc.args[0],
-			    __FILE__, uc.args[1], uc.args[2], uc.args[3]);
+		REPORT_GUEST_ASSERT_2(uc, "values: %#lx, %#lx");
 	default:
 		TEST_ASSERT(false, "Unexpected exit: %s",
 			    exit_reason_str(vcpu->run->exit_reason));

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

@@ -98,9 +98,7 @@ int main(int argc, char *argv[])
 	case UCALL_DONE:
 		break;
 	case UCALL_ABORT:
-		TEST_FAIL("%s at %s:%ld : argN+1 = 0x%lx, argN+2 = 0x%lx",
-			  (const char *)uc.args[0], __FILE__, uc.args[1],
-			  uc.args[2], uc.args[3]);
+		REPORT_GUEST_ASSERT_2(uc, "argN+1 = 0x%lx, argN+2 = 0x%lx");
 	default:
 		TEST_FAIL("Unknown ucall %lu", uc.cmd);
 	}

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

@@ -400,8 +400,7 @@ static void check_for_guest_assert(struct kvm_vcpu *vcpu)
 
 	if (vcpu->run->exit_reason == KVM_EXIT_IO &&
 	    get_ucall(vcpu, &uc) == UCALL_ABORT) {
-		TEST_FAIL("%s at %s:%ld",
-			  (const char *)uc.args[0], __FILE__, uc.args[1]);
+		REPORT_GUEST_ASSERT(uc);
 	}
 }
 
@@ -610,7 +609,7 @@ static int handle_ucall(struct kvm_vcpu *vcpu)
 
 	switch (get_ucall(vcpu, &uc)) {
 	case UCALL_ABORT:
-		TEST_FAIL("Guest assertion not met");
+		REPORT_GUEST_ASSERT(uc);
 		break;
 	case UCALL_SYNC:
 		vm_ioctl(vcpu->vm, KVM_X86_SET_MSR_FILTER, &no_filter_deny);

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

@@ -114,8 +114,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-				  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			apic_access_addr = uc.args[1];

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

@@ -74,7 +74,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s", (const char *)uc.args[0]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		default:
 			TEST_FAIL("Unknown ucall %lu", uc.cmd);

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

@@ -123,8 +123,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-			       	  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			/*

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

@@ -98,7 +98,7 @@ int main(int argc, char *argv[])
 	case UCALL_DONE:
 		break;
 	case UCALL_ABORT:
-		TEST_FAIL("%s", (const char *)uc.args[0]);
+		REPORT_GUEST_ASSERT(uc);
 	default:
 		TEST_FAIL("Unexpected ucall: %lu", uc.cmd);
 	}

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

@@ -194,7 +194,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s", (const char *) uc.args[0]);
+			REPORT_GUEST_ASSERT(uc);
 		case UCALL_SYNC:
 			switch (uc.args[0]) {
 			case USLEEP:

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

@@ -189,8 +189,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s at %s:%ld", (const char *)uc.args[0],
-				  __FILE__, uc.args[1]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			break;

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

@@ -147,7 +147,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s", (const char *)uc.args[0]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			report(uc.args[1]);

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

@@ -542,7 +542,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s", (const char *)uc.args[0]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC: {
 			struct kvm_xen_vcpu_attr rst;

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

@@ -129,7 +129,7 @@ int main(int argc, char *argv[])
 
 		switch (get_ucall(vcpu, &uc)) {
 		case UCALL_ABORT:
-			TEST_FAIL("%s", (const char *)uc.args[0]);
+			REPORT_GUEST_ASSERT(uc);
 			/* NOT REACHED */
 		case UCALL_SYNC:
 			break;