Commit d49b11f0 authored by Jing Zhang's avatar Jing Zhang Committed by Paolo Bonzini
Browse files

KVM: selftests: Add checks for histogram stats bucket_size field 



The bucket_size field should be non-zero for linear histogram stats and
should be zero for other stats types.

Reviewed-by: default avatarDavid Matlack <dmatlack@google.com>
Signed-off-by: default avatarJing Zhang <jingzhangos@google.com>
Message-Id: <20210802165633.1866976-4-jingzhangos@google.com>
Signed-off-by: default avatarPaolo Bonzini <pbonzini@redhat.com>
parent 0176ec51

tools/testing/selftests/kvm/kvm_binary_stats_test.c

+12 −0
Original line number Diff line number Diff line
@@ -109,6 +109,18 @@ static void stats_test(int stats_fd) 
		/* Check size field, which should not be zero */

		TEST_ASSERT(pdesc->size, "KVM descriptor(%s) with size of 0",

				pdesc->name);

		/* Check bucket_size field */

		switch (pdesc->flags & KVM_STATS_TYPE_MASK) {

		case KVM_STATS_TYPE_LINEAR_HIST:

			TEST_ASSERT(pdesc->bucket_size,

			    "Bucket size of Linear Histogram stats (%s) is zero",

			    pdesc->name);

			break;

		default:

			TEST_ASSERT(!pdesc->bucket_size,

			    "Bucket size of stats (%s) is not zero",

			    pdesc->name);

		}

		size_data += pdesc->size * sizeof(*stats_data);

	}

	/* Check overlap */