KVM: selftests: Use vcpu_arch_put_guest() in mmu_stress_test

Use vcpu_arch_put_guest() to write memory from the guest in
mmu_stress_test as an easy way to provide a bit of extra coverage.

Reviewed-by: James Houghton <[email protected]>
Reviewed-by: Andrew Jones <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Sean Christopherson <[email protected]>

Author: sean-jc

tools/testing/selftests/kvm/mmu_stress_test.c

@@ -23,7 +23,7 @@ static void guest_code(uint64_t start_gpa, uint64_t end_gpa, uint64_t stride)
 
 	for (;;) {
 		for (gpa = start_gpa; gpa < end_gpa; gpa += stride)
-			*((volatile uint64_t *)gpa) = gpa;
+			vcpu_arch_put_guest(*((volatile uint64_t *)gpa), gpa);
 		GUEST_SYNC(0);
 	}
 }