For the beginning, just test 'hv-passthrough' and a couple of custom Hyper-V enlightenments configurations through QMP. Later, it would be great to complement this by checking CPUID values from within the guest.
Signed-off-by: Vitaly Kuznetsov <vkuzn...@redhat.com> --- MAINTAINERS | 1 + tests/qtest/hyperv-test.c | 225 ++++++++++++++++++++++++++++++++++++++ tests/qtest/meson.build | 3 +- 3 files changed, 228 insertions(+), 1 deletion(-) create mode 100644 tests/qtest/hyperv-test.c diff --git a/MAINTAINERS b/MAINTAINERS index 5f55404f2fae..862720016b3a 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1537,6 +1537,7 @@ F: hw/isa/apm.c F: include/hw/isa/apm.h F: tests/unit/test-x86-cpuid.c F: tests/qtest/test-x86-cpuid-compat.c +F: tests/qtest/hyperv-test.c PC Chipset M: Michael S. Tsirkin <m...@redhat.com> diff --git a/tests/qtest/hyperv-test.c b/tests/qtest/hyperv-test.c new file mode 100644 index 000000000000..0be689548e18 --- /dev/null +++ b/tests/qtest/hyperv-test.c @@ -0,0 +1,225 @@ +/* + * Hyper-V emulation CPU feature test cases + * + * Copyright (c) 2021 Red Hat Inc. + * Authors: + * Vitaly Kuznetsov <vkuzn...@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 <linux/kvm.h> +#include <sys/ioctl.h> + +#include "qemu/osdep.h" +#include "qemu/bitops.h" +#include "libqos/libqtest.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qmp/qjson.h" + +#define MACHINE_KVM "-machine pc-q35-5.2 -accel kvm " +#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 bool kvm_has_sys_hyperv_cpuid(void) +{ + int fd = open("/dev/kvm", O_RDWR); + int ret; + + g_assert(fd > 0); + + ret = ioctl(fd, KVM_CHECK_EXTENSION, KVM_CAP_SYS_HYPERV_CPUID); + + close(fd); + + return ret > 0; +} + +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 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; +} + +static bool resp_get_feature(QDict *resp, const char *feature) +{ + QDict *props; + + g_assert(resp); + g_assert(resp_has_props(resp)); + props = resp_get_props(resp); + g_assert(qdict_get(props, feature)); + return qdict_get_bool(props, feature); +} + +#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 resp_assert_feature(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(qdict_get_bool(_props, feature) == (expected_value)); \ +}) + +#define assert_feature(qts, cpu_type, feature, expected_value) \ +({ \ + QDict *_resp; \ + \ + _resp = do_query_no_props(qts, cpu_type); \ + g_assert(_resp); \ + resp_assert_feature(_resp, feature, expected_value); \ + qobject_unref(_resp); \ +}) + +#define assert_has_feature_enabled(qts, cpu_type, feature) \ + assert_feature(qts, cpu_type, feature, true) + +#define assert_has_feature_disabled(qts, cpu_type, feature) \ + assert_feature(qts, cpu_type, feature, false) + +static void test_assert_hyperv_all_but_evmcs(QTestState *qts) +{ + assert_has_feature_enabled(qts, "host", "hv-relaxed"); + assert_has_feature_enabled(qts, "host", "hv-vapic"); + assert_has_feature_enabled(qts, "host", "hv-vpindex"); + assert_has_feature_enabled(qts, "host", "hv-runtime"); + assert_has_feature_enabled(qts, "host", "hv-crash"); + assert_has_feature_enabled(qts, "host", "hv-time"); + assert_has_feature_enabled(qts, "host", "hv-synic"); + assert_has_feature_enabled(qts, "host", "hv-stimer"); + assert_has_feature_enabled(qts, "host", "hv-tlbflush"); + assert_has_feature_enabled(qts, "host", "hv-ipi"); + assert_has_feature_enabled(qts, "host", "hv-reset"); + assert_has_feature_enabled(qts, "host", "hv-frequencies"); + assert_has_feature_enabled(qts, "host", "hv-reenlightenment"); + assert_has_feature_enabled(qts, "host", "hv-stimer-direct"); +} + +static void test_query_cpu_hv_all_but_evmcs(const void *data) +{ + QTestState *qts; + + qts = qtest_init(MACHINE_KVM "-cpu host,hv-relaxed,hv-vapic,hv-vpindex," + "hv-runtime,hv-crash,hv-time,hv-synic,hv-stimer," + "hv-tlbflush,hv-ipi,hv-reset,hv-frequencies," + "hv-reenlightenment,hv-stimer-direct"); + + test_assert_hyperv_all_but_evmcs(qts); + + qtest_quit(qts); +} + +static void test_query_cpu_hv_custom(const void *data) +{ + QTestState *qts; + + qts = qtest_init(MACHINE_KVM "-cpu host,hv-vpindex"); + + assert_has_feature_enabled(qts, "host", "hv-vpindex"); + assert_has_feature_disabled(qts, "host", "hv-synic"); + + qtest_quit(qts); +} + +static void test_query_cpu_hv_passthrough(const void *data) +{ + QTestState *qts; + QDict *resp; + + qts = qtest_init(MACHINE_KVM "-cpu host,hv-passthrough"); + if (!kvm_enabled(qts)) { + qtest_quit(qts); + return; + } + + test_assert_hyperv_all_but_evmcs(qts); + + resp = do_query_no_props(qts, "host"); + if (resp_get_feature(resp, "vmx")) { + assert_has_feature_enabled(qts, "host", "hv-evmcs"); + } else { + assert_has_feature_disabled(qts, "host", "hv-evmcs"); + } + + qtest_quit(qts); +} + +int main(int argc, char **argv) +{ + const char *arch = qtest_get_arch(); + + g_test_init(&argc, &argv, NULL); + + if (!strcmp(arch, "i386") || !strcmp(arch, "x86_64")) { + qtest_add_data_func("/hyperv/hv-all-but-evmcs", + NULL, test_query_cpu_hv_all_but_evmcs); + qtest_add_data_func("/hyperv/hv-custom", + NULL, test_query_cpu_hv_custom); + if (kvm_has_sys_hyperv_cpuid()) { + qtest_add_data_func("/hyperv/hv-passthrough", + NULL, test_query_cpu_hv_passthrough); + } + } + + return g_test_run(); +} diff --git a/tests/qtest/meson.build b/tests/qtest/meson.build index c3a223a83d6a..958a88d0c8b4 100644 --- a/tests/qtest/meson.build +++ b/tests/qtest/meson.build @@ -83,7 +83,8 @@ qtests_i386 = \ 'vmgenid-test', 'migration-test', 'test-x86-cpuid-compat', - 'numa-test'] + 'numa-test', + 'hyperv-test'] dbus_daemon = find_program('dbus-daemon', required: false) if dbus_daemon.found() and config_host.has_key('GDBUS_CODEGEN') -- 2.31.1