2 * QEMU ICH9 TCO emulation tests
6 * This work is licensed under the terms of the GNU GPL, version 2 or later.
7 * See the COPYING file in the top-level directory.
9 #include "qemu/osdep.h"
12 #include "libqos/pci.h"
13 #include "libqos/pci-pc.h"
14 #include "hw/pci/pci_regs.h"
15 #include "hw/i386/ich9.h"
16 #include "hw/acpi/ich9.h"
17 #include "hw/acpi/tco.h"
19 #define RCBA_BASE_ADDR 0xfed1c000
20 #define PM_IO_BASE_ADDR 0xb000
23 TCO_RLD_DEFAULT = 0x0000,
24 TCO_DAT_IN_DEFAULT = 0x00,
25 TCO_DAT_OUT_DEFAULT = 0x00,
26 TCO1_STS_DEFAULT = 0x0000,
27 TCO2_STS_DEFAULT = 0x0000,
28 TCO1_CNT_DEFAULT = 0x0000,
29 TCO2_CNT_DEFAULT = 0x0008,
30 TCO_MESSAGE1_DEFAULT = 0x00,
31 TCO_MESSAGE2_DEFAULT = 0x00,
32 TCO_WDCNT_DEFAULT = 0x00,
33 TCO_TMR_DEFAULT = 0x0004,
34 SW_IRQ_GEN_DEFAULT = 0x03,
37 #define TCO_SECS_TO_TICKS(secs) (((secs) * 10) / 6)
38 #define TCO_TICKS_TO_SECS(ticks) (((ticks) * 6) / 10)
47 static void test_init(TestData *d)
53 s = g_strdup_printf("-machine q35 %s %s",
54 d->noreboot ? "" : "-global ICH9-LPC.noreboot=false",
55 !d->args ? "" : d->args);
57 qtest_irq_intercept_in(qs, "ioapic");
61 d->dev = qpci_device_find(bus, QPCI_DEVFN(0x1f, 0x00));
62 g_assert(d->dev != NULL);
64 qpci_device_enable(d->dev);
66 /* set ACPI PM I/O space base address */
67 qpci_config_writel(d->dev, ICH9_LPC_PMBASE, PM_IO_BASE_ADDR | 0x1);
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);
73 d->tco_io_base = (void *)((uintptr_t)PM_IO_BASE_ADDR + 0x60);
76 static void stop_tco(const TestData *d)
80 val = qpci_io_readw(d->dev, d->tco_io_base + TCO1_CNT);
82 qpci_io_writew(d->dev, d->tco_io_base + TCO1_CNT, val);
85 static void start_tco(const TestData *d)
89 val = qpci_io_readw(d->dev, d->tco_io_base + TCO1_CNT);
91 qpci_io_writew(d->dev, d->tco_io_base + TCO1_CNT, val);
94 static void load_tco(const TestData *d)
96 qpci_io_writew(d->dev, d->tco_io_base + TCO_RLD, 4);
99 static void set_tco_timeout(const TestData *d, uint16_t ticks)
101 qpci_io_writew(d->dev, d->tco_io_base + TCO_TMR, ticks);
104 static void clear_tco_status(const TestData *d)
106 qpci_io_writew(d->dev, d->tco_io_base + TCO1_STS, 0x0008);
107 qpci_io_writew(d->dev, d->tco_io_base + TCO2_STS, 0x0002);
108 qpci_io_writew(d->dev, d->tco_io_base + TCO2_STS, 0x0004);
111 static void reset_on_second_timeout(bool enable)
115 val = readl(RCBA_BASE_ADDR + ICH9_CC_GCS);
117 val &= ~ICH9_CC_GCS_NO_REBOOT;
119 val |= ICH9_CC_GCS_NO_REBOOT;
121 writel(RCBA_BASE_ADDR + ICH9_CC_GCS, val);
124 static void test_tco_defaults(void)
131 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD), ==,
133 /* TCO_DAT_IN & TCO_DAT_OUT */
134 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_DAT_IN), ==,
135 (TCO_DAT_OUT_DEFAULT << 8) | TCO_DAT_IN_DEFAULT);
136 /* TCO1_STS & TCO2_STS */
137 g_assert_cmpint(qpci_io_readl(d.dev, d.tco_io_base + TCO1_STS), ==,
138 (TCO2_STS_DEFAULT << 16) | TCO1_STS_DEFAULT);
139 /* TCO1_CNT & TCO2_CNT */
140 g_assert_cmpint(qpci_io_readl(d.dev, d.tco_io_base + TCO1_CNT), ==,
141 (TCO2_CNT_DEFAULT << 16) | TCO1_CNT_DEFAULT);
142 /* TCO_MESSAGE1 & TCO_MESSAGE2 */
143 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_MESSAGE1), ==,
144 (TCO_MESSAGE2_DEFAULT << 8) | TCO_MESSAGE1_DEFAULT);
145 g_assert_cmpint(qpci_io_readb(d.dev, d.tco_io_base + TCO_WDCNT), ==,
147 g_assert_cmpint(qpci_io_readb(d.dev, d.tco_io_base + SW_IRQ_GEN), ==,
149 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_TMR), ==,
154 static void test_tco_timeout(void)
157 const uint16_t ticks = TCO_SECS_TO_TICKS(4);
166 clear_tco_status(&d);
167 reset_on_second_timeout(false);
168 set_tco_timeout(&d, ticks);
171 clock_step(ticks * TCO_TICK_NSEC);
173 /* test first timeout */
174 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
175 ret = val & TCO_TIMEOUT ? 1 : 0;
178 /* test clearing timeout bit */
180 qpci_io_writew(d.dev, d.tco_io_base + TCO1_STS, val);
181 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
182 ret = val & TCO_TIMEOUT ? 1 : 0;
185 /* test second timeout */
186 clock_step(ticks * TCO_TICK_NSEC);
187 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
188 ret = val & TCO_TIMEOUT ? 1 : 0;
190 val = qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS);
191 ret = val & TCO_SECOND_TO_STS ? 1 : 0;
198 static void test_tco_max_timeout(void)
201 const uint16_t ticks = 0xffff;
210 clear_tco_status(&d);
211 reset_on_second_timeout(false);
212 set_tco_timeout(&d, ticks);
215 clock_step(((ticks & TCO_TMR_MASK) - 1) * TCO_TICK_NSEC);
217 val = qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD);
218 g_assert_cmpint(val & TCO_RLD_MASK, ==, 1);
219 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
220 ret = val & TCO_TIMEOUT ? 1 : 0;
222 clock_step(TCO_TICK_NSEC);
223 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
224 ret = val & TCO_TIMEOUT ? 1 : 0;
231 static QDict *get_watchdog_action(void)
235 g_assert(!strcmp(qdict_get_str(ev, "event"), "WATCHDOG"));
237 data = qdict_get_qdict(ev, "data");
243 static void test_tco_second_timeout_pause(void)
246 const uint16_t ticks = TCO_SECS_TO_TICKS(32);
249 td.args = "-watchdog-action pause";
254 clear_tco_status(&td);
255 reset_on_second_timeout(true);
256 set_tco_timeout(&td, TCO_SECS_TO_TICKS(16));
259 clock_step(ticks * TCO_TICK_NSEC * 2);
260 ad = get_watchdog_action();
261 g_assert(!strcmp(qdict_get_str(ad, "action"), "pause"));
268 static void test_tco_second_timeout_reset(void)
271 const uint16_t ticks = TCO_SECS_TO_TICKS(16);
274 td.args = "-watchdog-action reset";
279 clear_tco_status(&td);
280 reset_on_second_timeout(true);
281 set_tco_timeout(&td, TCO_SECS_TO_TICKS(16));
284 clock_step(ticks * TCO_TICK_NSEC * 2);
285 ad = get_watchdog_action();
286 g_assert(!strcmp(qdict_get_str(ad, "action"), "reset"));
293 static void test_tco_second_timeout_shutdown(void)
296 const uint16_t ticks = TCO_SECS_TO_TICKS(128);
299 td.args = "-watchdog-action shutdown";
304 clear_tco_status(&td);
305 reset_on_second_timeout(true);
306 set_tco_timeout(&td, ticks);
309 clock_step(ticks * TCO_TICK_NSEC * 2);
310 ad = get_watchdog_action();
311 g_assert(!strcmp(qdict_get_str(ad, "action"), "shutdown"));
318 static void test_tco_second_timeout_none(void)
321 const uint16_t ticks = TCO_SECS_TO_TICKS(256);
324 td.args = "-watchdog-action none";
329 clear_tco_status(&td);
330 reset_on_second_timeout(true);
331 set_tco_timeout(&td, ticks);
334 clock_step(ticks * TCO_TICK_NSEC * 2);
335 ad = get_watchdog_action();
336 g_assert(!strcmp(qdict_get_str(ad, "action"), "none"));
343 static void test_tco_ticks_counter(void)
346 uint16_t ticks = TCO_SECS_TO_TICKS(8);
354 clear_tco_status(&d);
355 reset_on_second_timeout(false);
356 set_tco_timeout(&d, ticks);
361 rld = qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD) & TCO_RLD_MASK;
362 g_assert_cmpint(rld, ==, ticks);
363 clock_step(TCO_TICK_NSEC);
365 } while (!(qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS) & TCO_TIMEOUT));
371 static void test_tco1_control_bits(void)
381 qpci_io_writew(d.dev, d.tco_io_base + TCO1_CNT, val);
383 qpci_io_writew(d.dev, d.tco_io_base + TCO1_CNT, val);
384 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO1_CNT), ==,
389 static void test_tco1_status_bits(void)
401 clear_tco_status(&d);
402 reset_on_second_timeout(false);
403 set_tco_timeout(&d, ticks);
406 clock_step(ticks * TCO_TICK_NSEC);
408 qpci_io_writeb(d.dev, d.tco_io_base + TCO_DAT_IN, 0);
409 qpci_io_writeb(d.dev, d.tco_io_base + TCO_DAT_OUT, 0);
410 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
411 ret = val & (TCO_TIMEOUT | SW_TCO_SMI | TCO_INT_STS) ? 1 : 0;
413 qpci_io_writew(d.dev, d.tco_io_base + TCO1_STS, val);
414 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS), ==, 0);
418 static void test_tco2_status_bits(void)
430 clear_tco_status(&d);
431 reset_on_second_timeout(true);
432 set_tco_timeout(&d, ticks);
435 clock_step(ticks * TCO_TICK_NSEC * 2);
437 val = qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS);
438 ret = val & (TCO_SECOND_TO_STS | TCO_BOOT_STS) ? 1 : 0;
440 qpci_io_writew(d.dev, d.tco_io_base + TCO2_STS, val);
441 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS), ==, 0);
445 int main(int argc, char **argv)
447 g_test_init(&argc, &argv, NULL);
449 qtest_add_func("tco/defaults", test_tco_defaults);
450 qtest_add_func("tco/timeout/no_action", test_tco_timeout);
451 qtest_add_func("tco/timeout/no_action/max", test_tco_max_timeout);
452 qtest_add_func("tco/second_timeout/pause", test_tco_second_timeout_pause);
453 qtest_add_func("tco/second_timeout/reset", test_tco_second_timeout_reset);
454 qtest_add_func("tco/second_timeout/shutdown",
455 test_tco_second_timeout_shutdown);
456 qtest_add_func("tco/second_timeout/none", test_tco_second_timeout_none);
457 qtest_add_func("tco/counter", test_tco_ticks_counter);
458 qtest_add_func("tco/tco1_control/bits", test_tco1_control_bits);
459 qtest_add_func("tco/tco1_status/bits", test_tco1_status_bits);
460 qtest_add_func("tco/tco2_status/bits", test_tco2_status_bits);