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authorJing Zhang <[email protected]>2021-08-02 16:56:31 +0000
committerPaolo Bonzini <[email protected]>2021-08-20 16:06:32 -0400
commitd49b11f080b77f5bd66eec938e01b87a16ef201f (patch)
tree222f061c4ba72555f997ebed3a52e9405a5b2ea6
parent0176ec51290f8ef543a8c18a02e932d6ccedbbc5 (diff)
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: David Matlack <[email protected]> Signed-off-by: Jing Zhang <[email protected]> Message-Id: <[email protected]> Signed-off-by: Paolo Bonzini <[email protected]>
-rw-r--r--tools/testing/selftests/kvm/kvm_binary_stats_test.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/testing/selftests/kvm/kvm_binary_stats_test.c b/tools/testing/selftests/kvm/kvm_binary_stats_test.c
index 5906bbc08483..17f65d514915 100644
--- a/tools/testing/selftests/kvm/kvm_binary_stats_test.c
+++ b/tools/testing/selftests/kvm/kvm_binary_stats_test.c
@@ -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 */