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selftests: KVM: Add exponent check for boolean stats

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The only sensible exponent for a boolean stat is 0. Add a test assertion
requiring all boolean statistics to have an exponent of 0.

Signed-off-by: Oliver Upton <oupton@google.com>
Reviewed-by: Andrew Jones <andrew.jones@linux.dev>
Message-Id: <20220719143134.3246798-4-oliver.upton@linux.dev>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Oliver Upton
2022-07-19 14:31:34 +00:00
committed by Paolo Bonzini
parent 7eebae78bc
commit dd4d1c3bb3
1 changed files with 6 additions and 0 deletions
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tools/testing/selftests/kvm/kvm_binary_stats_test.c
+6
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@@ -96,6 +96,7 @@ static void stats_test(int stats_fd)
* Exponent for unit seconds should be less than or equal to 0 * Exponent for unit seconds should be less than or equal to 0
* Exponent for unit clock cycles should be greater than or * Exponent for unit clock cycles should be greater than or
* equal to 0 * equal to 0
* Exponent for unit boolean should be 0
*/ */
switch (pdesc->flags & KVM_STATS_UNIT_MASK) { switch (pdesc->flags & KVM_STATS_UNIT_MASK) {
case KVM_STATS_UNIT_NONE: case KVM_STATS_UNIT_NONE:
@@ -110,6 +111,11 @@ static void stats_test(int stats_fd)
"Unsupported KVM stats (%s) exponent: %i", "Unsupported KVM stats (%s) exponent: %i",
pdesc->name, pdesc->exponent); pdesc->name, pdesc->exponent);
break; break;
case KVM_STATS_UNIT_BOOLEAN:
TEST_ASSERT(pdesc->exponent == 0,
"Unsupported KVM stats (%s) exponent: %d",
pdesc->name, pdesc->exponent);
break;
} }
/* Check size field, which should not be zero */ /* Check size field, which should not be zero */