| Message ID | 20221026160511.37162-3-cohuck@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | arm: enable MTE for QEMU + kvm | expand |
On 26/10/2022 18.05, Cornelia Huck wrote: > Signed-off-by: Cornelia Huck <cohuck@redhat.com> > --- > tests/qtest/arm-cpu-features.c | 76 ++++++++++++++++++++++++++++++++++ > 1 file changed, 76 insertions(+) > > diff --git a/tests/qtest/arm-cpu-features.c b/tests/qtest/arm-cpu-features.c > index 5a145273860c..e264d2178a8b 100644 > --- a/tests/qtest/arm-cpu-features.c > +++ b/tests/qtest/arm-cpu-features.c > @@ -22,6 +22,7 @@ > > #define MACHINE "-machine virt,gic-version=max -accel tcg " > #define MACHINE_KVM "-machine virt,gic-version=max -accel kvm -accel tcg " > +#define MACHINE_MTE "-machine virt,gic-version=max,mte=on -accel tcg " > #define QUERY_HEAD "{ 'execute': 'query-cpu-model-expansion', " \ > " 'arguments': { 'type': 'full', " > #define QUERY_TAIL "}}" > @@ -155,6 +156,18 @@ static bool resp_get_feature(QDict *resp, const char *feature) > g_assert(qdict_get_bool(_props, feature) == (expected_value)); \ > }) > > +#define resp_assert_feature_str(resp, feature, expected_value) \ > +({ \ > + QDict *_props; \ > + \ > + g_assert(_resp); \ > + g_assert(resp_has_props(_resp)); \ > + _props = resp_get_props(_resp); \ > + g_assert(qdict_get(_props, feature)); \ > + g_assert_cmpstr(qdict_get_try_str(_props, feature), ==, \ > + expected_value); \ > +}) > + > #define assert_feature(qts, cpu_type, feature, expected_value) \ > ({ \ > QDict *_resp; \ > @@ -165,6 +178,16 @@ static bool resp_get_feature(QDict *resp, const char *feature) > qobject_unref(_resp); \ > }) > > +#define assert_feature_str(qts, cpu_type, feature, expected_value) \ > +({ \ > + QDict *_resp; \ > + \ > + _resp = do_query_no_props(qts, cpu_type); \ > + g_assert(_resp); \ > + resp_assert_feature_str(_resp, feature, expected_value); \ > + qobject_unref(_resp); \ > +}) > + > #define assert_set_feature(qts, cpu_type, feature, value) \ > ({ \ > const char *_fmt = (value) ? "{ %s: true }" : "{ %s: false }"; \ > @@ -176,6 +199,16 @@ static bool resp_get_feature(QDict *resp, const char *feature) > qobject_unref(_resp); \ > }) > > +#define assert_set_feature_str(qts, cpu_type, feature, value, _fmt) \ > +({ \ > + QDict *_resp; \ > + \ > + _resp = do_query(qts, cpu_type, _fmt, feature); \ > + g_assert(_resp); \ > + resp_assert_feature_str(_resp, feature, value); \ > + qobject_unref(_resp); \ > +}) > + > #define assert_has_feature_enabled(qts, cpu_type, feature) \ > assert_feature(qts, cpu_type, feature, true) > > @@ -412,6 +445,24 @@ static void sve_tests_sve_off_kvm(const void *data) > qtest_quit(qts); > } > > +static void mte_tests_tag_memory_on(const void *data) > +{ > + QTestState *qts; > + > + qts = qtest_init(MACHINE_MTE "-cpu max"); > + > + /* > + * With tag memory, "mte" should default to on, and explicitly specifying > + * either on or off should be fine. > + */ > + assert_has_feature(qts, "max", "mte"); > + > + assert_set_feature_str(qts, "max", "mte", "off", "{ 'mte': 'off' }"); > + assert_set_feature_str(qts, "max", "mte", "on", "{ 'mte': 'on' }"); > + > + qtest_quit(qts); > +} > + > static void pauth_tests_default(QTestState *qts, const char *cpu_type) > { > assert_has_feature_enabled(qts, cpu_type, "pauth"); > @@ -424,6 +475,21 @@ static void pauth_tests_default(QTestState *qts, const char *cpu_type) > "{ 'pauth': false, 'pauth-impdef': true }"); > } > > +static void mte_tests_default(QTestState *qts, const char *cpu_type) > +{ > + assert_has_feature(qts, cpu_type, "mte"); > + > + /* > + * Without tag memory, mte will be off under tcg. > + * Explicitly enabling it yields an error. > + */ > + assert_has_feature(qts, cpu_type, "mte"); > + > + assert_set_feature_str(qts, "max", "mte", "off", "{ 'mte': 'off' }"); > + assert_error(qts, cpu_type, "mte=on requires tag memory", > + "{ 'mte': 'on' }"); > +} > + > static void test_query_cpu_model_expansion(const void *data) > { > QTestState *qts; > @@ -473,6 +539,7 @@ static void test_query_cpu_model_expansion(const void *data) > > sve_tests_default(qts, "max"); > pauth_tests_default(qts, "max"); > + mte_tests_default(qts, "max"); > > /* Test that features that depend on KVM generate errors without. */ > assert_error(qts, "max", > @@ -516,6 +583,13 @@ static void test_query_cpu_model_expansion_kvm(const void *data) > assert_set_feature(qts, "host", "pmu", false); > assert_set_feature(qts, "host", "pmu", true); > > + /* > + * Unfortunately, there's no easy way to test whether this instance > + * of KVM supports MTE. So we can only assert that the feature > + * is present, but not whether it can be toggled. > + */ > + assert_has_feature(qts, "host", "mte"); > + > /* > * Some features would be enabled by default, but they're disabled > * because this instance of KVM doesn't support them. Test that the > @@ -630,6 +704,8 @@ int main(int argc, char **argv) > NULL, sve_tests_sve_off); > qtest_add_data_func("/arm/kvm/query-cpu-model-expansion/sve-off", > NULL, sve_tests_sve_off_kvm); > + qtest_add_data_func("/arm/max/query-cpu-model-expansion/tag-memory", > + NULL, mte_tests_tag_memory_on); Is it already possible to compile qemu-system-aarch64 with --disable-tcg ? If so, I'd recommend a qtest_has_accel("tcg") here ... but apart from that: Acked-by: Thomas Huth <thuth@redhat.com>
On Thu, Oct 27 2022, Thomas Huth <thuth@redhat.com> wrote: > On 26/10/2022 18.05, Cornelia Huck wrote: >> + qtest_add_data_func("/arm/max/query-cpu-model-expansion/tag-memory", >> + NULL, mte_tests_tag_memory_on); > > Is it already possible to compile qemu-system-aarch64 with --disable-tcg ? Not yet, the code is too entangled... I tried a bit ago, but didn't make much progress (on my todo list, but won't mind someone else doing it :) > If so, I'd recommend a qtest_has_accel("tcg") here ... but apart from that: > > Acked-by: Thomas Huth <thuth@redhat.com> Thanks!
diff --git a/tests/qtest/arm-cpu-features.c b/tests/qtest/arm-cpu-features.c index 5a145273860c..e264d2178a8b 100644 --- a/tests/qtest/arm-cpu-features.c +++ b/tests/qtest/arm-cpu-features.c @@ -22,6 +22,7 @@ #define MACHINE "-machine virt,gic-version=max -accel tcg " #define MACHINE_KVM "-machine virt,gic-version=max -accel kvm -accel tcg " +#define MACHINE_MTE "-machine virt,gic-version=max,mte=on -accel tcg " #define QUERY_HEAD "{ 'execute': 'query-cpu-model-expansion', " \ " 'arguments': { 'type': 'full', " #define QUERY_TAIL "}}" @@ -155,6 +156,18 @@ static bool resp_get_feature(QDict *resp, const char *feature) g_assert(qdict_get_bool(_props, feature) == (expected_value)); \ }) +#define resp_assert_feature_str(resp, feature, expected_value) \ +({ \ + QDict *_props; \ + \ + g_assert(_resp); \ + g_assert(resp_has_props(_resp)); \ + _props = resp_get_props(_resp); \ + g_assert(qdict_get(_props, feature)); \ + g_assert_cmpstr(qdict_get_try_str(_props, feature), ==, \ + expected_value); \ +}) + #define assert_feature(qts, cpu_type, feature, expected_value) \ ({ \ QDict *_resp; \ @@ -165,6 +178,16 @@ static bool resp_get_feature(QDict *resp, const char *feature) qobject_unref(_resp); \ }) +#define assert_feature_str(qts, cpu_type, feature, expected_value) \ +({ \ + QDict *_resp; \ + \ + _resp = do_query_no_props(qts, cpu_type); \ + g_assert(_resp); \ + resp_assert_feature_str(_resp, feature, expected_value); \ + qobject_unref(_resp); \ +}) + #define assert_set_feature(qts, cpu_type, feature, value) \ ({ \ const char *_fmt = (value) ? "{ %s: true }" : "{ %s: false }"; \ @@ -176,6 +199,16 @@ static bool resp_get_feature(QDict *resp, const char *feature) qobject_unref(_resp); \ }) +#define assert_set_feature_str(qts, cpu_type, feature, value, _fmt) \ +({ \ + QDict *_resp; \ + \ + _resp = do_query(qts, cpu_type, _fmt, feature); \ + g_assert(_resp); \ + resp_assert_feature_str(_resp, feature, value); \ + qobject_unref(_resp); \ +}) + #define assert_has_feature_enabled(qts, cpu_type, feature) \ assert_feature(qts, cpu_type, feature, true) @@ -412,6 +445,24 @@ static void sve_tests_sve_off_kvm(const void *data) qtest_quit(qts); } +static void mte_tests_tag_memory_on(const void *data) +{ + QTestState *qts; + + qts = qtest_init(MACHINE_MTE "-cpu max"); + + /* + * With tag memory, "mte" should default to on, and explicitly specifying + * either on or off should be fine. + */ + assert_has_feature(qts, "max", "mte"); + + assert_set_feature_str(qts, "max", "mte", "off", "{ 'mte': 'off' }"); + assert_set_feature_str(qts, "max", "mte", "on", "{ 'mte': 'on' }"); + + qtest_quit(qts); +} + static void pauth_tests_default(QTestState *qts, const char *cpu_type) { assert_has_feature_enabled(qts, cpu_type, "pauth"); @@ -424,6 +475,21 @@ static void pauth_tests_default(QTestState *qts, const char *cpu_type) "{ 'pauth': false, 'pauth-impdef': true }"); } +static void mte_tests_default(QTestState *qts, const char *cpu_type) +{ + assert_has_feature(qts, cpu_type, "mte"); + + /* + * Without tag memory, mte will be off under tcg. + * Explicitly enabling it yields an error. + */ + assert_has_feature(qts, cpu_type, "mte"); + + assert_set_feature_str(qts, "max", "mte", "off", "{ 'mte': 'off' }"); + assert_error(qts, cpu_type, "mte=on requires tag memory", + "{ 'mte': 'on' }"); +} + static void test_query_cpu_model_expansion(const void *data) { QTestState *qts; @@ -473,6 +539,7 @@ static void test_query_cpu_model_expansion(const void *data) sve_tests_default(qts, "max"); pauth_tests_default(qts, "max"); + mte_tests_default(qts, "max"); /* Test that features that depend on KVM generate errors without. */ assert_error(qts, "max", @@ -516,6 +583,13 @@ static void test_query_cpu_model_expansion_kvm(const void *data) assert_set_feature(qts, "host", "pmu", false); assert_set_feature(qts, "host", "pmu", true); + /* + * Unfortunately, there's no easy way to test whether this instance + * of KVM supports MTE. So we can only assert that the feature + * is present, but not whether it can be toggled. + */ + assert_has_feature(qts, "host", "mte"); + /* * Some features would be enabled by default, but they're disabled * because this instance of KVM doesn't support them. Test that the @@ -630,6 +704,8 @@ int main(int argc, char **argv) NULL, sve_tests_sve_off); qtest_add_data_func("/arm/kvm/query-cpu-model-expansion/sve-off", NULL, sve_tests_sve_off_kvm); + qtest_add_data_func("/arm/max/query-cpu-model-expansion/tag-memory", + NULL, mte_tests_tag_memory_on); } return g_test_run();
Signed-off-by: Cornelia Huck <cohuck@redhat.com> --- tests/qtest/arm-cpu-features.c | 76 ++++++++++++++++++++++++++++++++++ 1 file changed, 76 insertions(+)