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#include "qemu/osdep.h"
#include "qapi/qmp/qdict.h"
#include "qapi/qmp/qlist.h"
#include "qapi/qmp/qnum.h"
#include "qapi/qmp/qbool.h"
#include "libqtest-single.h"
static char *get_cpu0_qom_path(void)
{
QDict *resp;
QList *ret;
QDict *cpu0;
char *path;
resp = qmp("{'execute': 'query-cpus-fast', '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"));
qobject_unref(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_ref(ret);
qobject_unref(resp);
return ret;
}
static bool qom_get_bool(const char *path, const char *prop)
{
QBool *value = qobject_to(QBool, qom_get(path, prop));
bool b = qbool_get_bool(value);
qobject_unref(value);
return b;
}
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;
QNum *value;
int64_t val;
qtest_start(args->cmdline);
path = get_cpu0_qom_path();
value = qobject_to(QNum, qom_get(path, args->property));
g_assert(qnum_get_try_int(value, &val));
g_assert_cmpint(val, ==, args->expected_value);
qtest_end();
qobject_unref(value);
g_free(path);
}
static void add_cpuid_test(const char *name, const char *cpu,
const char *cpufeat, const char *machine,
const char *property, int64_t expected_value)
{
CpuidTestArgs *args = g_new0(CpuidTestArgs, 1);
char *cmdline;
char *save;
if (!qtest_has_cpu_model(cpu)) {
return;
}
cmdline = g_strdup_printf("-cpu %s", cpu);
if (cpufeat) {
save = cmdline;
cmdline = g_strdup_printf("%s,%s", cmdline, cpufeat);
g_free(save);
}
if (machine) {
save = cmdline;
cmdline = g_strdup_printf("-machine %s %s", machine, cmdline);
g_free(save);
}
args->cmdline = cmdline;
args->property = property;
args->expected_value = expected_value;
qtest_add_data_func(name, args, test_cpuid_prop);
}
/* Parameters to a add_feature_test() test case */
typedef struct FeatureTestArgs {
/* cmdline to start QEMU */
const char *cmdline;
/*
* cpuid-input-eax and cpuid-input-ecx values to look for,
* in "feature-words" and "filtered-features" properties.
*/
uint32_t in_eax, in_ecx;
/* The register name to look for, in the X86CPUFeatureWordInfo array */
const char *reg;
/* The bit to check in X86CPUFeatureWordInfo.features */
int bitnr;
/* The expected value for the bit in (X86CPUFeatureWordInfo.features) */
bool expected_value;
} FeatureTestArgs;
/* Get the value for a feature word in a X86CPUFeatureWordInfo list */
static uint32_t get_feature_word(QList *features, uint32_t eax, uint32_t ecx,
const char *reg)
{
const QListEntry *e;
for (e = qlist_first(features); e; e = qlist_next(e)) {
QDict *w = qobject_to(QDict, qlist_entry_obj(e));
const char *rreg = qdict_get_str(w, "cpuid-register");
uint32_t reax = qdict_get_int(w, "cpuid-input-eax");
bool has_ecx = qdict_haskey(w, "cpuid-input-ecx");
uint32_t recx = 0;
int64_t val;
if (has_ecx) {
recx = qdict_get_int(w, "cpuid-input-ecx");
}
if (eax == reax && (!has_ecx || ecx == recx) && !strcmp(rreg, reg)) {
g_assert(qnum_get_try_int(qobject_to(QNum,
qdict_get(w, "features")),
&val));
return val;
}
}
return 0;
}
static void test_feature_flag(const void *data)
{
const FeatureTestArgs *args = data;
char *path;
QList *present, *filtered;
uint32_t value;
qtest_start(args->cmdline);
path = get_cpu0_qom_path();
present = qobject_to(QList, qom_get(path, "feature-words"));
filtered = qobject_to(QList, qom_get(path, "filtered-features"));
value = get_feature_word(present, args->in_eax, args->in_ecx, args->reg);
value |= get_feature_word(filtered, args->in_eax, args->in_ecx, args->reg);
qtest_end();
g_assert(!!(value & (1U << args->bitnr)) == args->expected_value);
qobject_unref(present);
qobject_unref(filtered);
g_free(path);
}
/*
* Add test case to ensure that a given feature flag is set in
* either "feature-words" or "filtered-features", when running QEMU
* using cmdline
*/
static void add_feature_test(const char *name, const char *cpu,
const char *cpufeat, uint32_t eax,
uint32_t ecx, const char *reg,
int bitnr, bool expected_value)
{
FeatureTestArgs *args = g_new0(FeatureTestArgs, 1);
char *cmdline;
if (!qtest_has_cpu_model(cpu)) {
return;
}
if (cpufeat) {
cmdline = g_strdup_printf("-cpu %s,%s", cpu, cpufeat);
} else {
cmdline = g_strdup_printf("-cpu %s", cpu);
}
args->cmdline = cmdline;
args->in_eax = eax;
args->in_ecx = ecx;
args->reg = reg;
args->bitnr = bitnr;
args->expected_value = expected_value;
qtest_add_data_func(name, args, test_feature_flag);
return;
}
static void test_plus_minus_subprocess(void)
{
char *path;
if (!qtest_has_cpu_model("pentium")) {
return;
}
/* Rules:
* 1)"-foo" overrides "+foo"
* 2) "[+-]foo" overrides "foo=..."
* 3) Old feature names with underscores (e.g. "sse4_2")
* should keep working
*
* Note: rules 1 and 2 are planned to be removed soon, and
* should generate a warning.
*/
qtest_start("-cpu pentium,-fpu,+fpu,-mce,mce=on,+cx8,cx8=off,+sse4_1,sse4_2=on");
path = get_cpu0_qom_path();
g_assert_false(qom_get_bool(path, "fpu"));
g_assert_false(qom_get_bool(path, "mce"));
g_assert_true(qom_get_bool(path, "cx8"));
/* Test both the original and the alias feature names: */
g_assert_true(qom_get_bool(path, "sse4-1"));
g_assert_true(qom_get_bool(path, "sse4.1"));
g_assert_true(qom_get_bool(path, "sse4-2"));
g_assert_true(qom_get_bool(path, "sse4.2"));
qtest_end();
g_free(path);
}
static void test_plus_minus(void)
{
if (!qtest_has_cpu_model("pentium")) {
return;
}
g_test_trap_subprocess("/x86/cpuid/parsing-plus-minus/subprocess", 0, 0);
g_test_trap_assert_passed();
g_test_trap_assert_stderr("*Ambiguous CPU model string. "
"Don't mix both \"-mce\" and \"mce=on\"*");
g_test_trap_assert_stderr("*Ambiguous CPU model string. "
"Don't mix both \"+cx8\" and \"cx8=off\"*");
g_test_trap_assert_stdout("");
}
int main(int argc, char **argv)
{
g_test_init(&argc, &argv, NULL);
g_test_add_func("/x86/cpuid/parsing-plus-minus/subprocess",
test_plus_minus_subprocess);
g_test_add_func("/x86/cpuid/parsing-plus-minus", test_plus_minus);
/* Original level values for CPU models: */
add_cpuid_test("x86/cpuid/phenom/level",
"phenom", NULL, NULL, "level", 5);
add_cpuid_test("x86/cpuid/Conroe/level",
"Conroe", NULL, NULL, "level", 10);
add_cpuid_test("x86/cpuid/SandyBridge/level",
"SandyBridge", NULL, NULL, "level", 0xd);
add_cpuid_test("x86/cpuid/486/xlevel",
"486", NULL, NULL, "xlevel", 0);
add_cpuid_test("x86/cpuid/core2duo/xlevel",
"core2duo", NULL, NULL, "xlevel", 0x80000008);
add_cpuid_test("x86/cpuid/phenom/xlevel",
"phenom", NULL, NULL, "xlevel", 0x8000001A);
add_cpuid_test("x86/cpuid/athlon/xlevel",
"athlon", NULL, NULL, "xlevel", 0x80000008);
/* If level is not large enough, it should increase automatically: */
/* CPUID[6].EAX: */
add_cpuid_test("x86/cpuid/auto-level/486/arat",
"486", "arat=on", NULL, "level", 6);
/* CPUID[EAX=7,ECX=0].EBX: */
add_cpuid_test("x86/cpuid/auto-level/phenom/fsgsbase",
"phenom", "fsgsbase=on", NULL, "level", 7);
/* CPUID[EAX=7,ECX=0].ECX: */
add_cpuid_test("x86/cpuid/auto-level/phenom/avx512vbmi",
"phenom", "avx512vbmi=on", NULL, "level", 7);
/* CPUID[EAX=0xd,ECX=1].EAX: */
add_cpuid_test("x86/cpuid/auto-level/phenom/xsaveopt",
"phenom", "xsaveopt=on", NULL, "level", 0xd);
/* CPUID[8000_0001].EDX: */
add_cpuid_test("x86/cpuid/auto-xlevel/486/3dnow",
"486", "3dnow=on", NULL, "xlevel", 0x80000001);
/* CPUID[8000_0001].ECX: */
add_cpuid_test("x86/cpuid/auto-xlevel/486/sse4a",
"486", "sse4a=on", NULL, "xlevel", 0x80000001);
/* CPUID[8000_0007].EDX: */
add_cpuid_test("x86/cpuid/auto-xlevel/486/invtsc",
"486", "invtsc=on", NULL, "xlevel", 0x80000007);
/* CPUID[8000_000A].EDX: */
add_cpuid_test("x86/cpuid/auto-xlevel/486/npt",
"486", "svm=on,npt=on", NULL, "xlevel", 0x8000000A);
/* CPUID[C000_0001].EDX: */
add_cpuid_test("x86/cpuid/auto-xlevel2/phenom/xstore",
"phenom", "xstore=on", NULL, "xlevel2", 0xC0000001);
/* SVM needs CPUID[0x8000000A] */
add_cpuid_test("x86/cpuid/auto-xlevel/athlon/svm",
"athlon", "svm=on", NULL, "xlevel", 0x8000000A);
/* If level is already large enough, it shouldn't change: */
add_cpuid_test("x86/cpuid/auto-level/SandyBridge/multiple",
"SandyBridge", "arat=on,fsgsbase=on,avx512vbmi=on",
NULL, "level", 0xd);
/* If level is explicitly set, it shouldn't change: */
add_cpuid_test("x86/cpuid/auto-level/486/fixed/0xF",
"486",
"level=0xF,arat=on,fsgsbase=on,avx512vbmi=on,xsaveopt=on",
NULL, "level", 0xF);
add_cpuid_test("x86/cpuid/auto-level/486/fixed/2",
"486",
"level=2,arat=on,fsgsbase=on,avx512vbmi=on,xsaveopt=on",
NULL, "level", 2);
add_cpuid_test("x86/cpuid/auto-level/486/fixed/0",
"486",
"level=0,arat=on,fsgsbase=on,avx512vbmi=on,xsaveopt=on",
NULL, "level", 0);
/* if xlevel is already large enough, it shouldn't change: */
add_cpuid_test("x86/cpuid/auto-xlevel/phenom/3dnow",
"phenom", "3dnow=on,sse4a=on,invtsc=on,npt=on,svm=on",
NULL, "xlevel", 0x8000001A);
/* If xlevel is explicitly set, it shouldn't change: */
add_cpuid_test("x86/cpuid/auto-xlevel/486/fixed/80000002",
"486",
"xlevel=0x80000002,3dnow=on,sse4a=on,invtsc=on,npt=on,svm=on",
NULL, "xlevel", 0x80000002);
add_cpuid_test("x86/cpuid/auto-xlevel/486/fixed/8000001A",
"486",
"xlevel=0x8000001A,3dnow=on,sse4a=on,invtsc=on,npt=on,svm=on",
NULL, "xlevel", 0x8000001A);
add_cpuid_test("x86/cpuid/auto-xlevel/phenom/fixed/0",
"486",
"xlevel=0,3dnow=on,sse4a=on,invtsc=on,npt=on,svm=on",
NULL, "xlevel", 0);
/* if xlevel2 is already large enough, it shouldn't change: */
add_cpuid_test("x86/cpuid/auto-xlevel2/486/fixed",
"486", "xlevel2=0xC0000002,xstore=on",
NULL, "xlevel2", 0xC0000002);
/* Check compatibility of old machine-types that didn't
* auto-increase level/xlevel/xlevel2: */
if (qtest_has_machine("pc-i440fx-2.7")) {
add_cpuid_test("x86/cpuid/auto-level/pc-2.7",
"486", "arat=on,avx512vbmi=on,xsaveopt=on",
"pc-i440fx-2.7", "level", 1);
add_cpuid_test("x86/cpuid/auto-xlevel/pc-2.7",
"486", "3dnow=on,sse4a=on,invtsc=on,npt=on,svm=on",
"pc-i440fx-2.7", "xlevel", 0);
add_cpuid_test("x86/cpuid/auto-xlevel2/pc-2.7",
"486", "xstore=on", "pc-i440fx-2.7",
"xlevel2", 0);
}
/*
* QEMU 2.3.0 had auto-level enabled for CPUID[7], already,
* and the compat code that sets default level shouldn't
* disable the auto-level=7 code:
*/
if (qtest_has_machine("pc-i440fx-2.3")) {
add_cpuid_test("x86/cpuid/auto-level7/pc-i440fx-2.3/off",
"Penryn", NULL, "pc-i440fx-2.3",
"level", 4);
add_cpuid_test("x86/cpuid/auto-level7/pc-i440fx-2.3/on",
"Penryn", "erms=on", "pc-i440fx-2.3",
"level", 7);
}
if (qtest_has_machine("pc-i440fx-2.9")) {
add_cpuid_test("x86/cpuid/auto-level7/pc-i440fx-2.9/off",
"Conroe", NULL, "pc-i440fx-2.9",
"level", 10);
add_cpuid_test("x86/cpuid/auto-level7/pc-i440fx-2.9/on",
"Conroe", "erms=on", "pc-i440fx-2.9",
"level", 10);
}
/*
* xlevel doesn't have any feature that triggers auto-level
* code on old machine-types. Just check that the compat code
* is working correctly:
*/
if (qtest_has_machine("pc-i440fx-2.3")) {
add_cpuid_test("x86/cpuid/xlevel-compat/pc-i440fx-2.3",
"SandyBridge", NULL, "pc-i440fx-2.3",
"xlevel", 0x8000000a);
}
if (qtest_has_machine("pc-i440fx-2.4")) {
add_cpuid_test("x86/cpuid/xlevel-compat/pc-i440fx-2.4/npt-off",
"SandyBridge", NULL, "pc-i440fx-2.4",
"xlevel", 0x80000008);
add_cpuid_test("x86/cpuid/xlevel-compat/pc-i440fx-2.4/npt-on",
"SandyBridge", "svm=on,npt=on", "pc-i440fx-2.4",
"xlevel", 0x80000008);
}
/* Test feature parsing */
add_feature_test("x86/cpuid/features/plus",
"486", "+arat",
6, 0, "EAX", 2, true);
add_feature_test("x86/cpuid/features/minus",
"pentium", "-mmx",
1, 0, "EDX", 23, false);
add_feature_test("x86/cpuid/features/on",
"486", "arat=on",
6, 0, "EAX", 2, true);
add_feature_test("x86/cpuid/features/off",
"pentium", "mmx=off",
1, 0, "EDX", 23, false);
add_feature_test("x86/cpuid/features/max-plus-invtsc",
"max" , "+invtsc",
0x80000007, 0, "EDX", 8, true);
add_feature_test("x86/cpuid/features/max-invtsc-on",
"max", "invtsc=on",
0x80000007, 0, "EDX", 8, true);
add_feature_test("x86/cpuid/features/max-minus-mmx",
"max", "-mmx",
1, 0, "EDX", 23, false);
add_feature_test("x86/cpuid/features/max-invtsc-on,mmx=off",
"max", "mmx=off",
1, 0, "EDX", 23, false);
return g_test_run();
}
|
