Re: [PATCH v6 0/9] target/arm/kvm: enable SVE in guests

[Andrew Jones]

On Mon, Oct 21, 2019 at 04:43:22PM +0100, Peter Maydell wrote:
> On Mon, 21 Oct 2019 at 15:23, Andrew Jones <address@hidden> wrote:
> > Peter, would you mind running your test on the kvm32 machine with this
> > change before I send a v7?
> 
> Still fails:
> 
> pm215@pm-ct:~/qemu/build/arm$
> QTEST_QEMU_BINARY=arm-softmmu/qemu-system-arm tests/arm-cpu-features
> /arm/arm/query-cpu-model-expansion: OK
> /arm/arm/kvm/query-cpu-model-expansion: **
> ERROR:/home/pm215/qemu/tests/arm-cpu-features.c:498:test_query_cpu_model_expansion_kvm:
> assertion failed: (resp_has_props(_resp))
> Aborted
> 
> This is asserting on the line:
> 498             assert_has_not_feature(qts, "host", "sve");
>

Oh, I see. It's not failing the specific absence of 'sve', but the test
code (assert_has_not_feature()) is assuming at least one property is
present. This isn't the case for kvm32 'host' cpus. They apparently
have none. We need this patch too, then

diff --git a/tests/arm-cpu-features.c b/tests/arm-cpu-features.c
index 14100ebd8521..9aa728ed8469 100644
--- a/tests/arm-cpu-features.c
+++ b/tests/arm-cpu-features.c
@@ -136,8 +136,8 @@ static bool resp_get_feature(QDict *resp, const char 
*feature)
 ({                                                                     \
     QDict *_resp = do_query_no_props(qts, cpu_type);                   \
     g_assert(_resp);                                                   \
-    g_assert(resp_has_props(_resp));                                   \
-    g_assert(!qdict_get(resp_get_props(_resp), feature));              \
+    g_assert(!resp_has_props(_resp) ||                                 \
+             !qdict_get(resp_get_props(_resp), feature));              \
     qobject_unref(_resp);                                              \
 })
 

Thanks,
drew