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.
15 #include "libqos/pci.h"
16 #include "libqos/pci-pc.h"
17 #include "hw/pci/pci_regs.h"
18 #include "hw/i386/ich9.h"
19 #include "hw/acpi/ich9.h"
20 #include "hw/acpi/tco.h"
22 #define RCBA_BASE_ADDR 0xfed1c000
23 #define PM_IO_BASE_ADDR 0xb000
26 TCO_RLD_DEFAULT = 0x0000,
27 TCO_DAT_IN_DEFAULT = 0x00,
28 TCO_DAT_OUT_DEFAULT = 0x00,
29 TCO1_STS_DEFAULT = 0x0000,
30 TCO2_STS_DEFAULT = 0x0000,
31 TCO1_CNT_DEFAULT = 0x0000,
32 TCO2_CNT_DEFAULT = 0x0008,
33 TCO_MESSAGE1_DEFAULT = 0x00,
34 TCO_MESSAGE2_DEFAULT = 0x00,
35 TCO_WDCNT_DEFAULT = 0x00,
36 TCO_TMR_DEFAULT = 0x0004,
37 SW_IRQ_GEN_DEFAULT = 0x03,
40 #define TCO_SECS_TO_TICKS(secs) (((secs) * 10) / 6)
41 #define TCO_TICKS_TO_SECS(ticks) (((ticks) * 6) / 10)
50 static void test_init(TestData *d)
56 s = g_strdup_printf("-machine q35 %s %s",
57 d->noreboot ? "" : "-global ICH9-LPC.noreboot=false",
58 !d->args ? "" : d->args);
60 qtest_irq_intercept_in(qs, "ioapic");
64 d->dev = qpci_device_find(bus, QPCI_DEVFN(0x1f, 0x00));
65 g_assert(d->dev != NULL);
67 qpci_device_enable(d->dev);
69 /* set ACPI PM I/O space base address */
70 qpci_config_writel(d->dev, ICH9_LPC_PMBASE, PM_IO_BASE_ADDR | 0x1);
72 qpci_config_writeb(d->dev, ICH9_LPC_ACPI_CTRL, 0x80);
73 /* set Root Complex BAR */
74 qpci_config_writel(d->dev, ICH9_LPC_RCBA, RCBA_BASE_ADDR | 0x1);
76 d->tco_io_base = (void *)((uintptr_t)PM_IO_BASE_ADDR + 0x60);
79 static void stop_tco(const TestData *d)
83 val = qpci_io_readw(d->dev, d->tco_io_base + TCO1_CNT);
85 qpci_io_writew(d->dev, d->tco_io_base + TCO1_CNT, val);
88 static void start_tco(const TestData *d)
92 val = qpci_io_readw(d->dev, d->tco_io_base + TCO1_CNT);
94 qpci_io_writew(d->dev, d->tco_io_base + TCO1_CNT, val);
97 static void load_tco(const TestData *d)
99 qpci_io_writew(d->dev, d->tco_io_base + TCO_RLD, 4);
102 static void set_tco_timeout(const TestData *d, uint16_t ticks)
104 qpci_io_writew(d->dev, d->tco_io_base + TCO_TMR, ticks);
107 static void clear_tco_status(const TestData *d)
109 qpci_io_writew(d->dev, d->tco_io_base + TCO1_STS, 0x0008);
110 qpci_io_writew(d->dev, d->tco_io_base + TCO2_STS, 0x0002);
111 qpci_io_writew(d->dev, d->tco_io_base + TCO2_STS, 0x0004);
114 static void reset_on_second_timeout(bool enable)
118 val = readl(RCBA_BASE_ADDR + ICH9_CC_GCS);
120 val &= ~ICH9_CC_GCS_NO_REBOOT;
122 val |= ICH9_CC_GCS_NO_REBOOT;
124 writel(RCBA_BASE_ADDR + ICH9_CC_GCS, val);
127 static void test_tco_defaults(void)
134 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD), ==,
136 /* TCO_DAT_IN & TCO_DAT_OUT */
137 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_DAT_IN), ==,
138 (TCO_DAT_OUT_DEFAULT << 8) | TCO_DAT_IN_DEFAULT);
139 /* TCO1_STS & TCO2_STS */
140 g_assert_cmpint(qpci_io_readl(d.dev, d.tco_io_base + TCO1_STS), ==,
141 (TCO2_STS_DEFAULT << 16) | TCO1_STS_DEFAULT);
142 /* TCO1_CNT & TCO2_CNT */
143 g_assert_cmpint(qpci_io_readl(d.dev, d.tco_io_base + TCO1_CNT), ==,
144 (TCO2_CNT_DEFAULT << 16) | TCO1_CNT_DEFAULT);
145 /* TCO_MESSAGE1 & TCO_MESSAGE2 */
146 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_MESSAGE1), ==,
147 (TCO_MESSAGE2_DEFAULT << 8) | TCO_MESSAGE1_DEFAULT);
148 g_assert_cmpint(qpci_io_readb(d.dev, d.tco_io_base + TCO_WDCNT), ==,
150 g_assert_cmpint(qpci_io_readb(d.dev, d.tco_io_base + SW_IRQ_GEN), ==,
152 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO_TMR), ==,
157 static void test_tco_timeout(void)
160 const uint16_t ticks = TCO_SECS_TO_TICKS(4);
169 clear_tco_status(&d);
170 reset_on_second_timeout(false);
171 set_tco_timeout(&d, ticks);
174 clock_step(ticks * TCO_TICK_NSEC);
176 /* test first timeout */
177 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
178 ret = val & TCO_TIMEOUT ? 1 : 0;
181 /* test clearing timeout bit */
183 qpci_io_writew(d.dev, d.tco_io_base + TCO1_STS, val);
184 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
185 ret = val & TCO_TIMEOUT ? 1 : 0;
188 /* test second timeout */
189 clock_step(ticks * TCO_TICK_NSEC);
190 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
191 ret = val & TCO_TIMEOUT ? 1 : 0;
193 val = qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS);
194 ret = val & TCO_SECOND_TO_STS ? 1 : 0;
201 static void test_tco_max_timeout(void)
204 const uint16_t ticks = 0xffff;
213 clear_tco_status(&d);
214 reset_on_second_timeout(false);
215 set_tco_timeout(&d, ticks);
218 clock_step(((ticks & TCO_TMR_MASK) - 1) * TCO_TICK_NSEC);
220 val = qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD);
221 g_assert_cmpint(val & TCO_RLD_MASK, ==, 1);
222 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
223 ret = val & TCO_TIMEOUT ? 1 : 0;
225 clock_step(TCO_TICK_NSEC);
226 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
227 ret = val & TCO_TIMEOUT ? 1 : 0;
234 static QDict *get_watchdog_action(void)
238 g_assert(!strcmp(qdict_get_str(ev, "event"), "WATCHDOG"));
240 data = qdict_get_qdict(ev, "data");
246 static void test_tco_second_timeout_pause(void)
249 const uint16_t ticks = TCO_SECS_TO_TICKS(32);
252 td.args = "-watchdog-action pause";
257 clear_tco_status(&td);
258 reset_on_second_timeout(true);
259 set_tco_timeout(&td, TCO_SECS_TO_TICKS(16));
262 clock_step(ticks * TCO_TICK_NSEC * 2);
263 ad = get_watchdog_action();
264 g_assert(!strcmp(qdict_get_str(ad, "action"), "pause"));
271 static void test_tco_second_timeout_reset(void)
274 const uint16_t ticks = TCO_SECS_TO_TICKS(16);
277 td.args = "-watchdog-action reset";
282 clear_tco_status(&td);
283 reset_on_second_timeout(true);
284 set_tco_timeout(&td, TCO_SECS_TO_TICKS(16));
287 clock_step(ticks * TCO_TICK_NSEC * 2);
288 ad = get_watchdog_action();
289 g_assert(!strcmp(qdict_get_str(ad, "action"), "reset"));
296 static void test_tco_second_timeout_shutdown(void)
299 const uint16_t ticks = TCO_SECS_TO_TICKS(128);
302 td.args = "-watchdog-action shutdown";
307 clear_tco_status(&td);
308 reset_on_second_timeout(true);
309 set_tco_timeout(&td, ticks);
312 clock_step(ticks * TCO_TICK_NSEC * 2);
313 ad = get_watchdog_action();
314 g_assert(!strcmp(qdict_get_str(ad, "action"), "shutdown"));
321 static void test_tco_second_timeout_none(void)
324 const uint16_t ticks = TCO_SECS_TO_TICKS(256);
327 td.args = "-watchdog-action none";
332 clear_tco_status(&td);
333 reset_on_second_timeout(true);
334 set_tco_timeout(&td, ticks);
337 clock_step(ticks * TCO_TICK_NSEC * 2);
338 ad = get_watchdog_action();
339 g_assert(!strcmp(qdict_get_str(ad, "action"), "none"));
346 static void test_tco_ticks_counter(void)
349 uint16_t ticks = TCO_SECS_TO_TICKS(8);
357 clear_tco_status(&d);
358 reset_on_second_timeout(false);
359 set_tco_timeout(&d, ticks);
364 rld = qpci_io_readw(d.dev, d.tco_io_base + TCO_RLD) & TCO_RLD_MASK;
365 g_assert_cmpint(rld, ==, ticks);
366 clock_step(TCO_TICK_NSEC);
368 } while (!(qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS) & TCO_TIMEOUT));
374 static void test_tco1_control_bits(void)
384 qpci_io_writew(d.dev, d.tco_io_base + TCO1_CNT, val);
386 qpci_io_writew(d.dev, d.tco_io_base + TCO1_CNT, val);
387 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO1_CNT), ==,
392 static void test_tco1_status_bits(void)
404 clear_tco_status(&d);
405 reset_on_second_timeout(false);
406 set_tco_timeout(&d, ticks);
409 clock_step(ticks * TCO_TICK_NSEC);
411 qpci_io_writeb(d.dev, d.tco_io_base + TCO_DAT_IN, 0);
412 qpci_io_writeb(d.dev, d.tco_io_base + TCO_DAT_OUT, 0);
413 val = qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS);
414 ret = val & (TCO_TIMEOUT | SW_TCO_SMI | TCO_INT_STS) ? 1 : 0;
416 qpci_io_writew(d.dev, d.tco_io_base + TCO1_STS, val);
417 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO1_STS), ==, 0);
421 static void test_tco2_status_bits(void)
433 clear_tco_status(&d);
434 reset_on_second_timeout(true);
435 set_tco_timeout(&d, ticks);
438 clock_step(ticks * TCO_TICK_NSEC * 2);
440 val = qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS);
441 ret = val & (TCO_SECOND_TO_STS | TCO_BOOT_STS) ? 1 : 0;
443 qpci_io_writew(d.dev, d.tco_io_base + TCO2_STS, val);
444 g_assert_cmpint(qpci_io_readw(d.dev, d.tco_io_base + TCO2_STS), ==, 0);
448 int main(int argc, char **argv)
450 g_test_init(&argc, &argv, NULL);
452 qtest_add_func("tco/defaults", test_tco_defaults);
453 qtest_add_func("tco/timeout/no_action", test_tco_timeout);
454 qtest_add_func("tco/timeout/no_action/max", test_tco_max_timeout);
455 qtest_add_func("tco/second_timeout/pause", test_tco_second_timeout_pause);
456 qtest_add_func("tco/second_timeout/reset", test_tco_second_timeout_reset);
457 qtest_add_func("tco/second_timeout/shutdown",
458 test_tco_second_timeout_shutdown);
459 qtest_add_func("tco/second_timeout/none", test_tco_second_timeout_none);
460 qtest_add_func("tco/counter", test_tco_ticks_counter);
461 qtest_add_func("tco/tco1_control/bits", test_tco1_control_bits);
462 qtest_add_func("tco/tco1_status/bits", test_tco1_status_bits);
463 qtest_add_func("tco/tco2_status/bits", test_tco2_status_bits);