/* * Arm CPU feature test cases * * Copyright (c) 2019 Red Hat Inc. * Authors: * Andrew Jones * * 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, "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(); }