Commit 6efef58e authored by Eduardo Habkost's avatar Eduardo Habkost
Browse files

tests: Add test code for CPUID level/xlevel handling 



Add test code that will check if the automatic CPUID level
changes are working as expected.

Reviewed-by: default avatarRichard Henderson <rth@twiddle.net>
Signed-off-by: default avatarEduardo Habkost <ehabkost@redhat.com>
parent 5e992a8e

tests/.gitignore

+1 −0
Original line number Diff line number Diff line
@@ -75,6 +75,7 @@ test-visitor-serialization 
test-vmstate

test-write-threshold

test-x86-cpuid

test-x86-cpuid-compat

test-xbzrle

test-netfilter

test-filter-mirror

tests/Makefile.include

+2 −0
Original line number Diff line number Diff line
@@ -243,6 +243,7 @@ check-qtest-i386-y += tests/test-netfilter$(EXESUF) 
check-qtest-i386-y += tests/test-filter-mirror$(EXESUF)

check-qtest-i386-y += tests/test-filter-redirector$(EXESUF)

check-qtest-i386-y += tests/postcopy-test$(EXESUF)

check-qtest-i386-y += tests/test-x86-cpuid-compat$(EXESUF)

check-qtest-x86_64-y += $(check-qtest-i386-y)

gcov-files-i386-y += i386-softmmu/hw/timer/mc146818rtc.c

gcov-files-x86_64-y = $(subst i386-softmmu/,x86_64-softmmu/,$(gcov-files-i386-y))
@@ -663,6 +664,7 @@ tests/test-write-threshold$(EXESUF): tests/test-write-threshold.o $(test-block-o 
tests/test-netfilter$(EXESUF): tests/test-netfilter.o $(qtest-obj-y)

tests/test-filter-mirror$(EXESUF): tests/test-filter-mirror.o $(qtest-obj-y)

tests/test-filter-redirector$(EXESUF): tests/test-filter-redirector.o $(qtest-obj-y)

tests/test-x86-cpuid-compat$(EXESUF): tests/test-x86-cpuid-compat.o $(qtest-obj-y)

tests/ivshmem-test$(EXESUF): tests/ivshmem-test.o contrib/ivshmem-server/ivshmem-server.o $(libqos-pc-obj-y)

tests/vhost-user-bridge$(EXESUF): tests/vhost-user-bridge.o

tests/ptimer-test$(EXESUF): tests/ptimer-test.o tests/ptimer-test-stubs.o hw/core/ptimer.o

tests/test-x86-cpuid-compat.c

0 → 100644
+108 −0
Original line number Diff line number Diff line 
#include "qemu/osdep.h"

#include "qemu-common.h"

#include "qapi/qmp/qlist.h"

#include "qapi/qmp/qdict.h"

#include "qapi/qmp/qint.h"

#include "libqtest.h"



static char *get_cpu0_qom_path(void)

{

    QDict *resp;

    QList *ret;

    QDict *cpu0;

    char *path;



    resp = qmp("{'execute': 'query-cpus', 'arguments': {}}");

    g_assert(qdict_haskey(resp, "return"));

    ret = qdict_get_qlist(resp, "return");



    cpu0 = qobject_to_qdict(qlist_peek(ret));

    path = g_strdup(qdict_get_str(cpu0, "qom_path"));

    QDECREF(resp);

    return path;

}



static QObject *qom_get(const char *path, const char *prop)

{

    QDict *resp = qmp("{ 'execute': 'qom-get',"

                      "  'arguments': { 'path': %s,"

                      "                 'property': %s } }",

                      path, prop);

    QObject *ret = qdict_get(resp, "return");

    qobject_incref(ret);

    QDECREF(resp);

    return ret;

}



typedef struct CpuidTestArgs {

    const char *cmdline;

    const char *property;

    int64_t expected_value;

} CpuidTestArgs;



static void test_cpuid_prop(const void *data)

{

    const CpuidTestArgs *args = data;

    char *path;

    QInt *value;



    qtest_start(args->cmdline);

    path = get_cpu0_qom_path();

    value = qobject_to_qint(qom_get(path, args->property));

    g_assert_cmpint(qint_get_int(value), ==, args->expected_value);

    qtest_end();



    QDECREF(value);

    g_free(path);

}



static void add_cpuid_test(const char *name, const char *cmdline,

                           const char *property, int64_t expected_value)

{

    CpuidTestArgs *args = g_new0(CpuidTestArgs, 1);

    args->cmdline = cmdline;

    args->property = property;

    args->expected_value = expected_value;

    qtest_add_data_func(name, args, test_cpuid_prop);

}



int main(int argc, char **argv)

{

    g_test_init(&argc, &argv, NULL);



    /* Original level values for CPU models: */

    add_cpuid_test("x86/cpuid/phenom/level",

                   "-cpu phenom", "level", 5);

    add_cpuid_test("x86/cpuid/Conroe/level",

                   "-cpu Conroe", "level", 10);

    add_cpuid_test("x86/cpuid/SandyBridge/level",

                   "-cpu SandyBridge", "level", 0xd);

    add_cpuid_test("x86/cpuid/486/xlevel",

                   "-cpu 486", "xlevel", 0);

    add_cpuid_test("x86/cpuid/core2duo/xlevel",

                   "-cpu core2duo", "xlevel", 0x80000008);

    add_cpuid_test("x86/cpuid/phenom/xlevel",

                   "-cpu phenom", "xlevel", 0x8000001A);



    /* If level is not large enough, it should increase automatically: */

    /* CPUID[EAX=7,ECX=0].EBX: */

    add_cpuid_test("x86/cpuid/auto-level/phenom/fsgsbase",

                   "-cpu phenom,+fsgsbase", "level", 7);



    /* If level is already large enough, it shouldn't change: */

    add_cpuid_test("x86/cpuid/auto-level/SandyBridge/multiple",

                   "-cpu SandyBridge,+arat,+fsgsbase,+avx512vbmi",

                   "level", 0xd);



    /* if xlevel is already large enough, it shouldn't change: */

    add_cpuid_test("x86/cpuid/auto-xlevel/phenom/3dnow",

                   "-cpu phenom,+3dnow,+sse4a,+invtsc,+npt",

                   "xlevel", 0x8000001A);



    /* if xlevel2 is already large enough, it shouldn't change: */

    add_cpuid_test("x86/cpuid/auto-xlevel2/486/fixed",

                   "-cpu 486,xlevel2=0xC0000002,+xstore",

                   "xlevel2", 0xC0000002);



    return g_test_run();

}