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[PULL,04/20] tests: Test CPUID level handling for old machines

Message ID 1475007150-14665-5-git-send-email-ehabkost@redhat.com (mailing list archive)
State New, archived
Headers show

Commit Message

Eduardo Habkost Sept. 27, 2016, 8:12 p.m. UTC 
We're going to change the way level/xlevel/xlevel2 are handled
when enabling features, but we need to keep the old behavior on
existing machine types. Add test cases for that.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
---
 tests/test-x86-cpuid-compat.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)
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Patch

diff --git a/tests/test-x86-cpuid-compat.c b/tests/test-x86-cpuid-compat.c
index b81cfeb..f7003ee 100644
--- a/tests/test-x86-cpuid-compat.c
+++ b/tests/test-x86-cpuid-compat.c
@@ -104,5 +104,18 @@  int main(int argc, char **argv)
                    "-cpu 486,xlevel2=0xC0000002,+xstore",
                    "xlevel2", 0xC0000002);
 
+    /* Check compatibility of old machine-types that didn't
+     * auto-increase level/xlevel/xlevel2: */
+
+    add_cpuid_test("x86/cpuid/auto-level/pc-2.7",
+                   "-machine pc-i440fx-2.7 -cpu 486,+arat,+avx512vbmi,+xsaveopt",
+                   "level", 1);
+    add_cpuid_test("x86/cpuid/auto-xlevel/pc-2.7",
+                   "-machine pc-i440fx-2.7 -cpu 486,+3dnow,+sse4a,+invtsc,+npt",
+                   "xlevel", 0);
+    add_cpuid_test("x86/cpuid/auto-xlevel2/pc-2.7",
+                   "-machine pc-i440fx-2.7 -cpu 486,+xstore",
+                   "xlevel2", 0);
+
     return g_test_run();
 }