tco-test.c 12.1 KB
Newer Older
1 2 3 4 5 6 7 8
/*
 * QEMU ICH9 TCO emulation tests
 *
 * Copyright (c) 2015 Paulo Alcantara <pcacjr@zytor.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.
 */
P
Peter Maydell 已提交
9
#include "qemu/osdep.h"
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

#include "libqtest.h"
#include "libqos/pci.h"
#include "libqos/pci-pc.h"
#include "hw/pci/pci_regs.h"
#include "hw/i386/ich9.h"
#include "hw/acpi/ich9.h"
#include "hw/acpi/tco.h"

#define RCBA_BASE_ADDR    0xfed1c000
#define PM_IO_BASE_ADDR   0xb000

enum {
    TCO_RLD_DEFAULT         = 0x0000,
    TCO_DAT_IN_DEFAULT      = 0x00,
    TCO_DAT_OUT_DEFAULT     = 0x00,
    TCO1_STS_DEFAULT        = 0x0000,
    TCO2_STS_DEFAULT        = 0x0000,
    TCO1_CNT_DEFAULT        = 0x0000,
    TCO2_CNT_DEFAULT        = 0x0008,
    TCO_MESSAGE1_DEFAULT    = 0x00,
    TCO_MESSAGE2_DEFAULT    = 0x00,
    TCO_WDCNT_DEFAULT       = 0x00,
    TCO_TMR_DEFAULT         = 0x0004,
    SW_IRQ_GEN_DEFAULT      = 0x03,
};

#define TCO_SECS_TO_TICKS(secs)     (((secs) * 10) / 6)
#define TCO_TICKS_TO_SECS(ticks)    (((ticks) * 6) / 10)

typedef struct {
    const char *args;
42
    bool noreboot;
43 44 45 46 47 48 49 50 51 52
    QPCIDevice *dev;
    void *tco_io_base;
} TestData;

static void test_init(TestData *d)
{
    QPCIBus *bus;
    QTestState *qs;
    char *s;

53 54 55
    s = g_strdup_printf("-machine q35 %s %s",
                        d->noreboot ? "" : "-global ICH9-LPC.noreboot=false",
                        !d->args ? "" : d->args);
56 57 58 59 60 61 62 63 64 65 66
    qs = qtest_start(s);
    qtest_irq_intercept_in(qs, "ioapic");
    g_free(s);

    bus = qpci_init_pc();
    d->dev = qpci_device_find(bus, QPCI_DEVFN(0x1f, 0x00));
    g_assert(d->dev != NULL);

    qpci_device_enable(d->dev);

    /* set ACPI PM I/O space base address */
67
    qpci_config_writel(d->dev, ICH9_LPC_PMBASE, PM_IO_BASE_ADDR | 0x1);
68
    /* enable ACPI I/O */
69
    qpci_config_writeb(d->dev, ICH9_LPC_ACPI_CTRL, 0x80);
70
    /* set Root Complex BAR */
71
    qpci_config_writel(d->dev, ICH9_LPC_RCBA, RCBA_BASE_ADDR | 0x1);
72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128

    d->tco_io_base = (void *)((uintptr_t)PM_IO_BASE_ADDR + 0x60);
}

static void stop_tco(const TestData *d)
{
    uint32_t val;

    val = qpci_io_readw(d->dev, d->tco_io_base + TCO1_CNT);
    val |= TCO_TMR_HLT;
    qpci_io_writew(d->dev, d->tco_io_base + TCO1_CNT, val);
}

static void start_tco(const TestData *d)
{
    uint32_t val;

    val = qpci_io_readw(d->dev, d->tco_io_base + TCO1_CNT);
    val &= ~TCO_TMR_HLT;
    qpci_io_writew(d->dev, d->tco_io_base + TCO1_CNT, val);
}

static void load_tco(const TestData *d)
{
    qpci_io_writew(d->dev, d->tco_io_base + TCO_RLD, 4);
}

static void set_tco_timeout(const TestData *d, uint16_t ticks)
{
    qpci_io_writew(d->dev, d->tco_io_base + TCO_TMR, ticks);
}

static void clear_tco_status(const TestData *d)
{
    qpci_io_writew(d->dev, d->tco_io_base + TCO1_STS, 0x0008);
    qpci_io_writew(d->dev, d->tco_io_base + TCO2_STS, 0x0002);
    qpci_io_writew(d->dev, d->tco_io_base + TCO2_STS, 0x0004);
}

static void reset_on_second_timeout(bool enable)
{
    uint32_t val;

    val = readl(RCBA_BASE_ADDR + ICH9_CC_GCS);
    if (enable) {
        val &= ~ICH9_CC_GCS_NO_REBOOT;
    } else {
        val |= ICH9_CC_GCS_NO_REBOOT;
    }
    writel(RCBA_BASE_ADDR + ICH9_CC_GCS, val);
}

static void test_tco_defaults(void)
{
    TestData d;

    d.args = NULL;
129
    d.noreboot = true;
130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161
    test_init(&d);
    g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD), ==,
                    TCO_RLD_DEFAULT);
    /* TCO_DAT_IN & TCO_DAT_OUT */
    g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_DAT_IN), ==,
                    (TCO_DAT_OUT_DEFAULT << 8) | TCO_DAT_IN_DEFAULT);
    /* TCO1_STS & TCO2_STS */
    g_assert_cmpint(qpci_io_readl(d.dev, d.tco_io_base + TCO1_STS), ==,
                    (TCO2_STS_DEFAULT << 16) | TCO1_STS_DEFAULT);
    /* TCO1_CNT & TCO2_CNT */
    g_assert_cmpint(qpci_io_readl(d.dev, d.tco_io_base + TCO1_CNT), ==,
                    (TCO2_CNT_DEFAULT << 16) | TCO1_CNT_DEFAULT);
    /* TCO_MESSAGE1 & TCO_MESSAGE2 */
    g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_MESSAGE1), ==,
                    (TCO_MESSAGE2_DEFAULT << 8) | TCO_MESSAGE1_DEFAULT);
    g_assert_cmpint(qpci_io_readb(d.dev, d.tco_io_base + TCO_WDCNT), ==,
                    TCO_WDCNT_DEFAULT);
    g_assert_cmpint(qpci_io_readb(d.dev, d.tco_io_base + SW_IRQ_GEN), ==,
                    SW_IRQ_GEN_DEFAULT);
    g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_TMR), ==,
                    TCO_TMR_DEFAULT);
    qtest_end();
}

static void test_tco_timeout(void)
{
    TestData d;
    const uint16_t ticks = TCO_SECS_TO_TICKS(4);
    uint32_t val;
    int ret;

    d.args = NULL;
162
    d.noreboot = true;
163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205
    test_init(&d);

    stop_tco(&d);
    clear_tco_status(&d);
    reset_on_second_timeout(false);
    set_tco_timeout(&d, ticks);
    load_tco(&d);
    start_tco(&d);
    clock_step(ticks * TCO_TICK_NSEC);

    /* test first timeout */
    val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
    ret = val & TCO_TIMEOUT ? 1 : 0;
    g_assert(ret == 1);

    /* test clearing timeout bit */
    val |= TCO_TIMEOUT;
    qpci_io_writew(d.dev, d.tco_io_base + TCO1_STS, val);
    val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
    ret = val & TCO_TIMEOUT ? 1 : 0;
    g_assert(ret == 0);

    /* test second timeout */
    clock_step(ticks * TCO_TICK_NSEC);
    val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
    ret = val & TCO_TIMEOUT ? 1 : 0;
    g_assert(ret == 1);
    val = qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS);
    ret = val & TCO_SECOND_TO_STS ? 1 : 0;
    g_assert(ret == 1);

    stop_tco(&d);
    qtest_end();
}

static void test_tco_max_timeout(void)
{
    TestData d;
    const uint16_t ticks = 0xffff;
    uint32_t val;
    int ret;

    d.args = NULL;
206
    d.noreboot = true;
207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249
    test_init(&d);

    stop_tco(&d);
    clear_tco_status(&d);
    reset_on_second_timeout(false);
    set_tco_timeout(&d, ticks);
    load_tco(&d);
    start_tco(&d);
    clock_step(((ticks & TCO_TMR_MASK) - 1) * TCO_TICK_NSEC);

    val = qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD);
    g_assert_cmpint(val & TCO_RLD_MASK, ==, 1);
    val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
    ret = val & TCO_TIMEOUT ? 1 : 0;
    g_assert(ret == 0);
    clock_step(TCO_TICK_NSEC);
    val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
    ret = val & TCO_TIMEOUT ? 1 : 0;
    g_assert(ret == 1);

    stop_tco(&d);
    qtest_end();
}

static QDict *get_watchdog_action(void)
{
    QDict *ev = qmp("");
    QDict *data;
    g_assert(!strcmp(qdict_get_str(ev, "event"), "WATCHDOG"));

    data = qdict_get_qdict(ev, "data");
    QINCREF(data);
    QDECREF(ev);
    return data;
}

static void test_tco_second_timeout_pause(void)
{
    TestData td;
    const uint16_t ticks = TCO_SECS_TO_TICKS(32);
    QDict *ad;

    td.args = "-watchdog-action pause";
250
    td.noreboot = false;
251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274
    test_init(&td);

    stop_tco(&td);
    clear_tco_status(&td);
    reset_on_second_timeout(true);
    set_tco_timeout(&td, TCO_SECS_TO_TICKS(16));
    load_tco(&td);
    start_tco(&td);
    clock_step(ticks * TCO_TICK_NSEC * 2);
    ad = get_watchdog_action();
    g_assert(!strcmp(qdict_get_str(ad, "action"), "pause"));
    QDECREF(ad);

    stop_tco(&td);
    qtest_end();
}

static void test_tco_second_timeout_reset(void)
{
    TestData td;
    const uint16_t ticks = TCO_SECS_TO_TICKS(16);
    QDict *ad;

    td.args = "-watchdog-action reset";
275
    td.noreboot = false;
276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299
    test_init(&td);

    stop_tco(&td);
    clear_tco_status(&td);
    reset_on_second_timeout(true);
    set_tco_timeout(&td, TCO_SECS_TO_TICKS(16));
    load_tco(&td);
    start_tco(&td);
    clock_step(ticks * TCO_TICK_NSEC * 2);
    ad = get_watchdog_action();
    g_assert(!strcmp(qdict_get_str(ad, "action"), "reset"));
    QDECREF(ad);

    stop_tco(&td);
    qtest_end();
}

static void test_tco_second_timeout_shutdown(void)
{
    TestData td;
    const uint16_t ticks = TCO_SECS_TO_TICKS(128);
    QDict *ad;

    td.args = "-watchdog-action shutdown";
300
    td.noreboot = false;
301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324
    test_init(&td);

    stop_tco(&td);
    clear_tco_status(&td);
    reset_on_second_timeout(true);
    set_tco_timeout(&td, ticks);
    load_tco(&td);
    start_tco(&td);
    clock_step(ticks * TCO_TICK_NSEC * 2);
    ad = get_watchdog_action();
    g_assert(!strcmp(qdict_get_str(ad, "action"), "shutdown"));
    QDECREF(ad);

    stop_tco(&td);
    qtest_end();
}

static void test_tco_second_timeout_none(void)
{
    TestData td;
    const uint16_t ticks = TCO_SECS_TO_TICKS(256);
    QDict *ad;

    td.args = "-watchdog-action none";
325
    td.noreboot = false;
326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349
    test_init(&td);

    stop_tco(&td);
    clear_tco_status(&td);
    reset_on_second_timeout(true);
    set_tco_timeout(&td, ticks);
    load_tco(&td);
    start_tco(&td);
    clock_step(ticks * TCO_TICK_NSEC * 2);
    ad = get_watchdog_action();
    g_assert(!strcmp(qdict_get_str(ad, "action"), "none"));
    QDECREF(ad);

    stop_tco(&td);
    qtest_end();
}

static void test_tco_ticks_counter(void)
{
    TestData d;
    uint16_t ticks = TCO_SECS_TO_TICKS(8);
    uint16_t rld;

    d.args = NULL;
350
    d.noreboot = true;
351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376
    test_init(&d);

    stop_tco(&d);
    clear_tco_status(&d);
    reset_on_second_timeout(false);
    set_tco_timeout(&d, ticks);
    load_tco(&d);
    start_tco(&d);

    do {
        rld = qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD) & TCO_RLD_MASK;
        g_assert_cmpint(rld, ==, ticks);
        clock_step(TCO_TICK_NSEC);
        ticks--;
    } while (!(qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS) & TCO_TIMEOUT));

    stop_tco(&d);
    qtest_end();
}

static void test_tco1_control_bits(void)
{
    TestData d;
    uint16_t val;

    d.args = NULL;
377
    d.noreboot = true;
378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396
    test_init(&d);

    val = TCO_LOCK;
    qpci_io_writew(d.dev, d.tco_io_base + TCO1_CNT, val);
    val &= ~TCO_LOCK;
    qpci_io_writew(d.dev, d.tco_io_base + TCO1_CNT, val);
    g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO1_CNT), ==,
                    TCO_LOCK);
    qtest_end();
}

static void test_tco1_status_bits(void)
{
    TestData d;
    uint16_t ticks = 8;
    uint16_t val;
    int ret;

    d.args = NULL;
397
    d.noreboot = true;
398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424
    test_init(&d);

    stop_tco(&d);
    clear_tco_status(&d);
    reset_on_second_timeout(false);
    set_tco_timeout(&d, ticks);
    load_tco(&d);
    start_tco(&d);
    clock_step(ticks * TCO_TICK_NSEC);

    qpci_io_writeb(d.dev, d.tco_io_base + TCO_DAT_IN, 0);
    qpci_io_writeb(d.dev, d.tco_io_base + TCO_DAT_OUT, 0);
    val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
    ret = val & (TCO_TIMEOUT | SW_TCO_SMI | TCO_INT_STS) ? 1 : 0;
    g_assert(ret == 1);
    qpci_io_writew(d.dev, d.tco_io_base + TCO1_STS, val);
    g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS), ==, 0);
    qtest_end();
}

static void test_tco2_status_bits(void)
{
    TestData d;
    uint16_t ticks = 8;
    uint16_t val;
    int ret;

425 426
    d.args = NULL;
    d.noreboot = true;
427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462
    test_init(&d);

    stop_tco(&d);
    clear_tco_status(&d);
    reset_on_second_timeout(true);
    set_tco_timeout(&d, ticks);
    load_tco(&d);
    start_tco(&d);
    clock_step(ticks * TCO_TICK_NSEC * 2);

    val = qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS);
    ret = val & (TCO_SECOND_TO_STS | TCO_BOOT_STS) ? 1 : 0;
    g_assert(ret == 1);
    qpci_io_writew(d.dev, d.tco_io_base + TCO2_STS, val);
    g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS), ==, 0);
    qtest_end();
}

int main(int argc, char **argv)
{
    g_test_init(&argc, &argv, NULL);

    qtest_add_func("tco/defaults", test_tco_defaults);
    qtest_add_func("tco/timeout/no_action", test_tco_timeout);
    qtest_add_func("tco/timeout/no_action/max", test_tco_max_timeout);
    qtest_add_func("tco/second_timeout/pause", test_tco_second_timeout_pause);
    qtest_add_func("tco/second_timeout/reset", test_tco_second_timeout_reset);
    qtest_add_func("tco/second_timeout/shutdown",
                   test_tco_second_timeout_shutdown);
    qtest_add_func("tco/second_timeout/none", test_tco_second_timeout_none);
    qtest_add_func("tco/counter", test_tco_ticks_counter);
    qtest_add_func("tco/tco1_control/bits", test_tco1_control_bits);
    qtest_add_func("tco/tco1_status/bits", test_tco1_status_bits);
    qtest_add_func("tco/tco2_status/bits", test_tco2_status_bits);
    return g_test_run();
}