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/*
* Arm CPU feature test cases
*
* Copyright (c) 2019 Red Hat Inc.
* Authors:
* Andrew Jones <drjones@redhat.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or later.
* See the COPYING file in the top-level directory.
*/
#include "qemu/osdep.h"
#include "libqtest.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qjson.h"
#define MACHINE "-machine virt,gic-version=max,accel=tcg "
#define MACHINE_KVM "-machine virt,gic-version=max,accel=kvm:tcg "
#define QUERY_HEAD "{ 'execute': 'query-cpu-model-expansion', " \
" 'arguments': { 'type': 'full', "
#define QUERY_TAIL "}}"
static bool kvm_enabled(QTestState *qts)
{
QDict *resp, *qdict;
bool enabled;
resp = qtest_qmp(qts, "{ 'execute': 'query-kvm' }");
g_assert(qdict_haskey(resp, "return"));
qdict = qdict_get_qdict(resp, "return");
g_assert(qdict_haskey(qdict, "enabled"));
enabled = qdict_get_bool(qdict, "enabled");
qobject_unref(resp);
return enabled;
}
static QDict *do_query_no_props(QTestState *qts, const char *cpu_type)
{
return qtest_qmp(qts, QUERY_HEAD "'model': { 'name': %s }"
QUERY_TAIL, cpu_type);
}
static QDict *do_query(QTestState *qts, const char *cpu_type,
const char *fmt, ...)
{
QDict *resp;
if (fmt) {
QDict *args;
va_list ap;
va_start(ap, fmt);
args = qdict_from_vjsonf_nofail(fmt, ap);
va_end(ap);
resp = qtest_qmp(qts, QUERY_HEAD "'model': { 'name': %s, "
"'props': %p }"
QUERY_TAIL, cpu_type, args);
} else {
resp = do_query_no_props(qts, cpu_type);
}
return resp;
}
static const char *resp_get_error(QDict *resp)
{
QDict *qdict;
g_assert(resp);
qdict = qdict_get_qdict(resp, "error");
if (qdict) {
return qdict_get_str(qdict, "desc");
}
return NULL;
}
#define assert_error(qts, cpu_type, expected_error, fmt, ...) \
({ \
QDict *_resp; \
const char *_error; \
\
_resp = do_query(qts, cpu_type, fmt, ##__VA_ARGS__); \
g_assert(_resp); \
_error = resp_get_error(_resp); \
g_assert(_error); \
g_assert(g_str_equal(_error, expected_error)); \
qobject_unref(_resp); \
})
static bool resp_has_props(QDict *resp)
{
QDict *qdict;
g_assert(resp);
if (!qdict_haskey(resp, "return")) {
return false;
}
qdict = qdict_get_qdict(resp, "return");
if (!qdict_haskey(qdict, "model")) {
return false;
}
qdict = qdict_get_qdict(qdict, "model");
return qdict_haskey(qdict, "props");
}
static QDict *resp_get_props(QDict *resp)
{
QDict *qdict;
g_assert(resp);
g_assert(resp_has_props(resp));
qdict = qdict_get_qdict(resp, "return");
qdict = qdict_get_qdict(qdict, "model");
qdict = qdict_get_qdict(qdict, "props");
return qdict;
}
#define assert_has_feature(qts, cpu_type, 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)); \
qobject_unref(_resp); \
})
#define assert_has_not_feature(qts, cpu_type, feature) \
({ \
QDict *_resp = do_query_no_props(qts, cpu_type); \
g_assert(_resp); \
g_assert(!resp_has_props(_resp) || \
!qdict_get(resp_get_props(_resp), feature)); \
qobject_unref(_resp); \
})
static void assert_type_full(QTestState *qts)
{
const char *error;
QDict *resp;
resp = qtest_qmp(qts, "{ 'execute': 'query-cpu-model-expansion', "
"'arguments': { 'type': 'static', "
"'model': { 'name': 'foo' }}}");
g_assert(resp);
error = resp_get_error(resp);
g_assert(error);
g_assert(g_str_equal(error,
"The requested expansion type is not supported"));
qobject_unref(resp);
}
static void assert_bad_props(QTestState *qts, const char *cpu_type)
{
const char *error;
QDict *resp;
resp = qtest_qmp(qts, "{ 'execute': 'query-cpu-model-expansion', "
"'arguments': { 'type': 'full', "
"'model': { 'name': %s, "
"'props': false }}}",
cpu_type);
g_assert(resp);
error = resp_get_error(resp);
g_assert(error);
g_assert(g_str_equal(error,
"Invalid parameter type for 'props', expected: dict"));
qobject_unref(resp);
}
static void test_query_cpu_model_expansion(const void *data)
{
QTestState *qts;
qts = qtest_init(MACHINE "-cpu max");
/* Test common query-cpu-model-expansion input validation */
assert_type_full(qts);
assert_bad_props(qts, "max");
assert_error(qts, "foo", "The CPU type 'foo' is not a recognized "
"ARM CPU type", NULL);
assert_error(qts, "max", "Parameter 'not-a-prop' is unexpected",
"{ 'not-a-prop': false }");
assert_error(qts, "host", "The CPU type 'host' requires KVM", NULL);
/* Test expected feature presence/absence for some cpu types */
assert_has_feature(qts, "max", "pmu");
assert_has_feature(qts, "cortex-a15", "pmu");
assert_has_not_feature(qts, "cortex-a15", "aarch64");
if (g_str_equal(qtest_get_arch(), "aarch64")) {
assert_has_feature(qts, "max", "aarch64");
assert_has_feature(qts, "max", "sve");
assert_has_feature(qts, "cortex-a57", "pmu");
assert_has_feature(qts, "cortex-a57", "aarch64");
/* Test that features that depend on KVM generate errors without. */
assert_error(qts, "max",
"'aarch64' feature cannot be disabled "
"unless KVM is enabled and 32-bit EL1 "
"is supported",
"{ 'aarch64': false }");
}
qtest_quit(qts);
}
static void test_query_cpu_model_expansion_kvm(const void *data)
{
QTestState *qts;
qts = qtest_init(MACHINE_KVM "-cpu max");
/*
* These tests target the 'host' CPU type, so KVM must be enabled.
*/
if (!kvm_enabled(qts)) {
qtest_quit(qts);
return;
}
if (g_str_equal(qtest_get_arch(), "aarch64")) {
assert_has_feature(qts, "host", "aarch64");
assert_has_feature(qts, "host", "pmu");
assert_error(qts, "cortex-a15",
"We cannot guarantee the CPU type 'cortex-a15' works "
"with KVM on this host", NULL);
} else {
assert_has_not_feature(qts, "host", "aarch64");
assert_has_not_feature(qts, "host", "pmu");
}
qtest_quit(qts);
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
qtest_add_data_func("/arm/query-cpu-model-expansion",
NULL, test_query_cpu_model_expansion);
/*
* For now we only run KVM specific tests with AArch64 QEMU in
* order avoid attempting to run an AArch32 QEMU with KVM on
* AArch64 hosts. That won't work and isn't easy to detect.
*/
if (g_str_equal(qtest_get_arch(), "aarch64")) {
qtest_add_data_func("/arm/kvm/query-cpu-model-expansion",
NULL, test_query_cpu_model_expansion_kvm);
}
return g_test_run();
}
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