linux-kernel - [PATCH v2 3/4] KVM: selftests: Fix broken assert messages in Hyper-V features test

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Date:   Wed, 29 Nov 2023 14:49:15 -0800
From:   Sean Christopherson <seanjc@...gle.com>
To:     Paolo Bonzini <pbonzini@...hat.com>,
        Sean Christopherson <seanjc@...gle.com>
Cc:     kvm@...r.kernel.org, linux-kernel@...r.kernel.org,
        Maxim Levitsky <mlevitsk@...hat.com>
Subject: [PATCH v2 3/4] KVM: selftests: Fix broken assert messages in Hyper-V
 features test

Swap the ordering of parameters to guest asserts related to {RD,WR}MSR
success/failure in the Hyper-V features test.  As is, the output will
be mangled and broken due to passing an integer as a string and vice
versa.

Opportunistically fix a benign %u vs. %lu issue as well.

Signed-off-by: Sean Christopherson <seanjc@...gle.com>
---
 tools/testing/selftests/kvm/x86_64/hyperv_features.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/testing/selftests/kvm/x86_64/hyperv_features.c b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
index 4bb63b6ee4a0..29f6bdbce817 100644
--- a/tools/testing/selftests/kvm/x86_64/hyperv_features.c
+++ b/tools/testing/selftests/kvm/x86_64/hyperv_features.c
@@ -55,11 +55,11 @@ static void guest_msr(struct msr_data *msr)
 	if (msr->fault_expected)
 		__GUEST_ASSERT(vector == GP_VECTOR,
 			       "Expected #GP on %sMSR(0x%x), got vector '0x%x'",
-			       msr->idx, msr->write ? "WR" : "RD", vector);
+			       msr->write ? "WR" : "RD", msr->idx, vector);
 	else
 		__GUEST_ASSERT(!vector,
 			       "Expected success on %sMSR(0x%x), got vector '0x%x'",
-			       msr->idx, msr->write ? "WR" : "RD", vector);
+			       msr->write ? "WR" : "RD", msr->idx, vector);
 
 	if (vector || is_write_only_msr(msr->idx))
 		goto done;
@@ -102,11 +102,11 @@ static void guest_hcall(vm_vaddr_t pgs_gpa, struct hcall_data *hcall)
 	vector = __hyperv_hypercall(hcall->control, input, output, &res);
 	if (hcall->ud_expected) {
 		__GUEST_ASSERT(vector == UD_VECTOR,
-			       "Expected #UD for control '%u', got vector '0x%x'",
+			       "Expected #UD for control '%lu', got vector '0x%x'",
 			       hcall->control, vector);
 	} else {
 		__GUEST_ASSERT(!vector,
-			       "Expected no exception for control '%u', got vector '0x%x'",
+			       "Expected no exception for control '%lu', got vector '0x%x'",
 			       hcall->control, vector);
 		GUEST_ASSERT_EQ(res, hcall->expect);
 	}
-- 
2.43.0.rc1.413.gea7ed67945-goog