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6515b203 FB |
1 | /* |
2 | * ACPI implementation | |
5fafdf24 | 3 | * |
6515b203 | 4 | * Copyright (c) 2006 Fabrice Bellard |
5fafdf24 | 5 | * |
6515b203 FB |
6 | * This library is free software; you can redistribute it and/or |
7 | * modify it under the terms of the GNU Lesser General Public | |
8 | * License version 2 as published by the Free Software Foundation. | |
9 | * | |
10 | * This library is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * Lesser General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU Lesser General Public | |
8167ee88 | 16 | * License along with this library; if not, see <http://www.gnu.org/licenses/> |
6b620ca3 PB |
17 | * |
18 | * Contributions after 2012-01-13 are licensed under the terms of the | |
19 | * GNU GPL, version 2 or (at your option) any later version. | |
6515b203 | 20 | */ |
9c17d615 | 21 | #include "sysemu/sysemu.h" |
83c9f4ca | 22 | #include "hw/hw.h" |
0d09e41a PB |
23 | #include "hw/i386/pc.h" |
24 | #include "hw/acpi/acpi.h" | |
83c9089e | 25 | #include "monitor/monitor.h" |
0c764a9d LE |
26 | #include "qemu/config-file.h" |
27 | #include "qapi/opts-visitor.h" | |
28 | #include "qapi/dealloc-visitor.h" | |
29 | #include "qapi-visit.h" | |
6515b203 | 30 | |
104bf02e MT |
31 | struct acpi_table_header { |
32 | uint16_t _length; /* our length, not actual part of the hdr */ | |
e980f2bf | 33 | /* allows easier parsing for fw_cfg clients */ |
104bf02e | 34 | char sig[4]; /* ACPI signature (4 ASCII characters) */ |
8a92ea2f AL |
35 | uint32_t length; /* Length of table, in bytes, including header */ |
36 | uint8_t revision; /* ACPI Specification minor version # */ | |
37 | uint8_t checksum; /* To make sum of entire table == 0 */ | |
104bf02e MT |
38 | char oem_id[6]; /* OEM identification */ |
39 | char oem_table_id[8]; /* OEM table identification */ | |
8a92ea2f | 40 | uint32_t oem_revision; /* OEM revision number */ |
104bf02e | 41 | char asl_compiler_id[4]; /* ASL compiler vendor ID */ |
8a92ea2f | 42 | uint32_t asl_compiler_revision; /* ASL compiler revision number */ |
541dc0d4 | 43 | } QEMU_PACKED; |
8a92ea2f | 44 | |
104bf02e MT |
45 | #define ACPI_TABLE_HDR_SIZE sizeof(struct acpi_table_header) |
46 | #define ACPI_TABLE_PFX_SIZE sizeof(uint16_t) /* size of the extra prefix */ | |
47 | ||
e980f2bf | 48 | static const char unsigned dfl_hdr[ACPI_TABLE_HDR_SIZE - ACPI_TABLE_PFX_SIZE] = |
104bf02e MT |
49 | "QEMU\0\0\0\0\1\0" /* sig (4), len(4), revno (1), csum (1) */ |
50 | "QEMUQEQEMUQEMU\1\0\0\0" /* OEM id (6), table (8), revno (4) */ | |
51 | "QEMU\1\0\0\0" /* ASL compiler ID (4), version (4) */ | |
52 | ; | |
53 | ||
cb88a4ea | 54 | char unsigned *acpi_tables; |
8a92ea2f AL |
55 | size_t acpi_tables_len; |
56 | ||
0c764a9d LE |
57 | static QemuOptsList qemu_acpi_opts = { |
58 | .name = "acpi", | |
59 | .implied_opt_name = "data", | |
60 | .head = QTAILQ_HEAD_INITIALIZER(qemu_acpi_opts.head), | |
61 | .desc = { { 0 } } /* validated with OptsVisitor */ | |
62 | }; | |
63 | ||
64 | static void acpi_register_config(void) | |
65 | { | |
66 | qemu_add_opts(&qemu_acpi_opts); | |
67 | } | |
68 | ||
69 | machine_init(acpi_register_config); | |
70 | ||
8a92ea2f AL |
71 | static int acpi_checksum(const uint8_t *data, int len) |
72 | { | |
73 | int sum, i; | |
74 | sum = 0; | |
104bf02e | 75 | for (i = 0; i < len; i++) { |
8a92ea2f | 76 | sum += data[i]; |
104bf02e | 77 | } |
8a92ea2f AL |
78 | return (-sum) & 0xff; |
79 | } | |
80 | ||
e980f2bf LE |
81 | |
82 | /* Install a copy of the ACPI table specified in @blob. | |
83 | * | |
84 | * If @has_header is set, @blob starts with the System Description Table Header | |
85 | * structure. Otherwise, "dfl_hdr" is prepended. In any case, each header field | |
86 | * is optionally overwritten from @hdrs. | |
87 | * | |
88 | * It is valid to call this function with | |
89 | * (@blob == NULL && bloblen == 0 && !has_header). | |
90 | * | |
91 | * @hdrs->file and @hdrs->data are ignored. | |
92 | * | |
93 | * SIZE_MAX is considered "infinity" in this function. | |
94 | * | |
95 | * The number of tables that can be installed is not limited, but the 16-bit | |
96 | * counter at the beginning of "acpi_tables" wraps around after UINT16_MAX. | |
97 | */ | |
98 | static void acpi_table_install(const char unsigned *blob, size_t bloblen, | |
99 | bool has_header, | |
100 | const struct AcpiTableOptions *hdrs, | |
101 | Error **errp) | |
102 | { | |
103 | size_t body_start; | |
104 | const char unsigned *hdr_src; | |
105 | size_t body_size, acpi_payload_size; | |
106 | struct acpi_table_header *ext_hdr; | |
107 | unsigned changed_fields; | |
108 | ||
109 | /* Calculate where the ACPI table body starts within the blob, plus where | |
110 | * to copy the ACPI table header from. | |
111 | */ | |
112 | if (has_header) { | |
113 | /* _length | ACPI header in blob | blob body | |
114 | * ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^ | |
115 | * ACPI_TABLE_PFX_SIZE sizeof dfl_hdr body_size | |
116 | * == body_start | |
117 | * | |
118 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
119 | * acpi_payload_size == bloblen | |
120 | */ | |
121 | body_start = sizeof dfl_hdr; | |
122 | ||
123 | if (bloblen < body_start) { | |
124 | error_setg(errp, "ACPI table claiming to have header is too " | |
125 | "short, available: %zu, expected: %zu", bloblen, | |
126 | body_start); | |
127 | return; | |
128 | } | |
129 | hdr_src = blob; | |
130 | } else { | |
131 | /* _length | ACPI header in template | blob body | |
132 | * ^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^ | |
133 | * ACPI_TABLE_PFX_SIZE sizeof dfl_hdr body_size | |
134 | * == bloblen | |
135 | * | |
136 | * ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | |
137 | * acpi_payload_size | |
138 | */ | |
139 | body_start = 0; | |
140 | hdr_src = dfl_hdr; | |
141 | } | |
142 | body_size = bloblen - body_start; | |
143 | acpi_payload_size = sizeof dfl_hdr + body_size; | |
144 | ||
145 | if (acpi_payload_size > UINT16_MAX) { | |
146 | error_setg(errp, "ACPI table too big, requested: %zu, max: %u", | |
147 | acpi_payload_size, (unsigned)UINT16_MAX); | |
148 | return; | |
149 | } | |
150 | ||
151 | /* We won't fail from here on. Initialize / extend the globals. */ | |
152 | if (acpi_tables == NULL) { | |
153 | acpi_tables_len = sizeof(uint16_t); | |
154 | acpi_tables = g_malloc0(acpi_tables_len); | |
155 | } | |
156 | ||
157 | acpi_tables = g_realloc(acpi_tables, acpi_tables_len + | |
158 | ACPI_TABLE_PFX_SIZE + | |
159 | sizeof dfl_hdr + body_size); | |
160 | ||
161 | ext_hdr = (struct acpi_table_header *)(acpi_tables + acpi_tables_len); | |
162 | acpi_tables_len += ACPI_TABLE_PFX_SIZE; | |
163 | ||
164 | memcpy(acpi_tables + acpi_tables_len, hdr_src, sizeof dfl_hdr); | |
165 | acpi_tables_len += sizeof dfl_hdr; | |
166 | ||
167 | if (blob != NULL) { | |
168 | memcpy(acpi_tables + acpi_tables_len, blob + body_start, body_size); | |
169 | acpi_tables_len += body_size; | |
170 | } | |
171 | ||
172 | /* increase number of tables */ | |
173 | cpu_to_le16wu((uint16_t *)acpi_tables, | |
174 | le16_to_cpupu((uint16_t *)acpi_tables) + 1u); | |
175 | ||
176 | /* Update the header fields. The strings need not be NUL-terminated. */ | |
177 | changed_fields = 0; | |
178 | ext_hdr->_length = cpu_to_le16(acpi_payload_size); | |
179 | ||
180 | if (hdrs->has_sig) { | |
181 | strncpy(ext_hdr->sig, hdrs->sig, sizeof ext_hdr->sig); | |
182 | ++changed_fields; | |
183 | } | |
184 | ||
185 | if (has_header && le32_to_cpu(ext_hdr->length) != acpi_payload_size) { | |
186 | fprintf(stderr, | |
187 | "warning: ACPI table has wrong length, header says " | |
188 | "%" PRIu32 ", actual size %zu bytes\n", | |
189 | le32_to_cpu(ext_hdr->length), acpi_payload_size); | |
190 | } | |
191 | ext_hdr->length = cpu_to_le32(acpi_payload_size); | |
192 | ||
193 | if (hdrs->has_rev) { | |
194 | ext_hdr->revision = hdrs->rev; | |
195 | ++changed_fields; | |
196 | } | |
197 | ||
198 | ext_hdr->checksum = 0; | |
199 | ||
200 | if (hdrs->has_oem_id) { | |
201 | strncpy(ext_hdr->oem_id, hdrs->oem_id, sizeof ext_hdr->oem_id); | |
202 | ++changed_fields; | |
203 | } | |
204 | if (hdrs->has_oem_table_id) { | |
205 | strncpy(ext_hdr->oem_table_id, hdrs->oem_table_id, | |
206 | sizeof ext_hdr->oem_table_id); | |
207 | ++changed_fields; | |
208 | } | |
209 | if (hdrs->has_oem_rev) { | |
210 | ext_hdr->oem_revision = cpu_to_le32(hdrs->oem_rev); | |
211 | ++changed_fields; | |
212 | } | |
213 | if (hdrs->has_asl_compiler_id) { | |
214 | strncpy(ext_hdr->asl_compiler_id, hdrs->asl_compiler_id, | |
215 | sizeof ext_hdr->asl_compiler_id); | |
216 | ++changed_fields; | |
217 | } | |
218 | if (hdrs->has_asl_compiler_rev) { | |
219 | ext_hdr->asl_compiler_revision = cpu_to_le32(hdrs->asl_compiler_rev); | |
220 | ++changed_fields; | |
221 | } | |
222 | ||
223 | if (!has_header && changed_fields == 0) { | |
224 | fprintf(stderr, "warning: ACPI table: no headers are specified\n"); | |
225 | } | |
226 | ||
227 | /* recalculate checksum */ | |
228 | ext_hdr->checksum = acpi_checksum((const char unsigned *)ext_hdr + | |
229 | ACPI_TABLE_PFX_SIZE, acpi_payload_size); | |
230 | } | |
231 | ||
23084327 | 232 | void acpi_table_add(const QemuOpts *opts, Error **errp) |
8a92ea2f | 233 | { |
0c764a9d | 234 | AcpiTableOptions *hdrs = NULL; |
445d9cae | 235 | Error *err = NULL; |
0c764a9d LE |
236 | char **pathnames = NULL; |
237 | char **cur; | |
e980f2bf LE |
238 | size_t bloblen = 0; |
239 | char unsigned *blob = NULL; | |
8a92ea2f | 240 | |
0c764a9d LE |
241 | { |
242 | OptsVisitor *ov; | |
243 | ||
244 | ov = opts_visitor_new(opts); | |
245 | visit_type_AcpiTableOptions(opts_get_visitor(ov), &hdrs, NULL, &err); | |
246 | opts_visitor_cleanup(ov); | |
247 | } | |
248 | ||
249 | if (err) { | |
250 | goto out; | |
251 | } | |
252 | if (hdrs->has_file == hdrs->has_data) { | |
253 | error_setg(&err, "'-acpitable' requires one of 'data' or 'file'"); | |
254 | goto out; | |
255 | } | |
0c764a9d LE |
256 | |
257 | pathnames = g_strsplit(hdrs->has_file ? hdrs->file : hdrs->data, ":", 0); | |
258 | if (pathnames == NULL || pathnames[0] == NULL) { | |
259 | error_setg(&err, "'-acpitable' requires at least one pathname"); | |
445d9cae | 260 | goto out; |
104bf02e MT |
261 | } |
262 | ||
104bf02e | 263 | /* now read in the data files, reallocating buffer as needed */ |
0c764a9d LE |
264 | for (cur = pathnames; *cur; ++cur) { |
265 | int fd = open(*cur, O_RDONLY | O_BINARY); | |
104bf02e MT |
266 | |
267 | if (fd < 0) { | |
0c764a9d | 268 | error_setg(&err, "can't open file %s: %s", *cur, strerror(errno)); |
445d9cae | 269 | goto out; |
104bf02e MT |
270 | } |
271 | ||
272 | for (;;) { | |
cb88a4ea | 273 | char unsigned data[8192]; |
e980f2bf LE |
274 | ssize_t r; |
275 | ||
276 | r = read(fd, data, sizeof data); | |
104bf02e MT |
277 | if (r == 0) { |
278 | break; | |
279 | } else if (r > 0) { | |
e980f2bf LE |
280 | blob = g_realloc(blob, bloblen + r); |
281 | memcpy(blob + bloblen, data, r); | |
282 | bloblen += r; | |
104bf02e | 283 | } else if (errno != EINTR) { |
445d9cae | 284 | error_setg(&err, "can't read file %s: %s", |
0c764a9d | 285 | *cur, strerror(errno)); |
104bf02e | 286 | close(fd); |
445d9cae | 287 | goto out; |
104bf02e MT |
288 | } |
289 | } | |
290 | ||
291 | close(fd); | |
292 | } | |
293 | ||
e980f2bf | 294 | acpi_table_install(blob, bloblen, hdrs->has_file, hdrs, &err); |
104bf02e | 295 | |
445d9cae | 296 | out: |
e980f2bf | 297 | g_free(blob); |
0c764a9d LE |
298 | g_strfreev(pathnames); |
299 | ||
300 | if (hdrs != NULL) { | |
301 | QapiDeallocVisitor *dv; | |
302 | ||
303 | dv = qapi_dealloc_visitor_new(); | |
304 | visit_type_AcpiTableOptions(qapi_dealloc_get_visitor(dv), &hdrs, NULL, | |
305 | NULL); | |
306 | qapi_dealloc_visitor_cleanup(dv); | |
307 | } | |
308 | ||
23084327 | 309 | error_propagate(errp, err); |
8a92ea2f | 310 | } |
a54d41a8 | 311 | |
da98c8eb GH |
312 | static void acpi_notify_wakeup(Notifier *notifier, void *data) |
313 | { | |
314 | ACPIREGS *ar = container_of(notifier, ACPIREGS, wakeup); | |
315 | WakeupReason *reason = data; | |
316 | ||
317 | switch (*reason) { | |
62aeb0f7 GH |
318 | case QEMU_WAKEUP_REASON_RTC: |
319 | ar->pm1.evt.sts |= | |
320 | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_RT_CLOCK_STATUS); | |
321 | break; | |
6595abc0 GH |
322 | case QEMU_WAKEUP_REASON_PMTIMER: |
323 | ar->pm1.evt.sts |= | |
324 | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_TIMER_STATUS); | |
325 | break; | |
da98c8eb GH |
326 | case QEMU_WAKEUP_REASON_OTHER: |
327 | default: | |
328 | /* ACPI_BITMASK_WAKE_STATUS should be set on resume. | |
329 | Pretend that resume was caused by power button */ | |
330 | ar->pm1.evt.sts |= | |
331 | (ACPI_BITMASK_WAKE_STATUS | ACPI_BITMASK_POWER_BUTTON_STATUS); | |
332 | break; | |
333 | } | |
334 | } | |
335 | ||
04dc308f | 336 | /* ACPI PM1a EVT */ |
2886be1b | 337 | uint16_t acpi_pm1_evt_get_sts(ACPIREGS *ar) |
04dc308f IY |
338 | { |
339 | int64_t d = acpi_pm_tmr_get_clock(); | |
2886be1b | 340 | if (d >= ar->tmr.overflow_time) { |
355bf2e5 | 341 | ar->pm1.evt.sts |= ACPI_BITMASK_TIMER_STATUS; |
04dc308f | 342 | } |
355bf2e5 | 343 | return ar->pm1.evt.sts; |
04dc308f IY |
344 | } |
345 | ||
b5a7c024 | 346 | static void acpi_pm1_evt_write_sts(ACPIREGS *ar, uint16_t val) |
04dc308f | 347 | { |
2886be1b | 348 | uint16_t pm1_sts = acpi_pm1_evt_get_sts(ar); |
04dc308f IY |
349 | if (pm1_sts & val & ACPI_BITMASK_TIMER_STATUS) { |
350 | /* if TMRSTS is reset, then compute the new overflow time */ | |
355bf2e5 | 351 | acpi_pm_tmr_calc_overflow_time(ar); |
04dc308f | 352 | } |
355bf2e5 | 353 | ar->pm1.evt.sts &= ~val; |
04dc308f IY |
354 | } |
355 | ||
b5a7c024 | 356 | static void acpi_pm1_evt_write_en(ACPIREGS *ar, uint16_t val) |
8283c4f5 GH |
357 | { |
358 | ar->pm1.evt.en = val; | |
62aeb0f7 GH |
359 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_RTC, |
360 | val & ACPI_BITMASK_RT_CLOCK_ENABLE); | |
6595abc0 GH |
361 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_PMTIMER, |
362 | val & ACPI_BITMASK_TIMER_ENABLE); | |
8283c4f5 GH |
363 | } |
364 | ||
355bf2e5 | 365 | void acpi_pm1_evt_power_down(ACPIREGS *ar) |
04dc308f | 366 | { |
355bf2e5 GH |
367 | if (ar->pm1.evt.en & ACPI_BITMASK_POWER_BUTTON_ENABLE) { |
368 | ar->pm1.evt.sts |= ACPI_BITMASK_POWER_BUTTON_STATUS; | |
369 | ar->tmr.update_sci(ar); | |
04dc308f IY |
370 | } |
371 | } | |
372 | ||
355bf2e5 | 373 | void acpi_pm1_evt_reset(ACPIREGS *ar) |
04dc308f | 374 | { |
355bf2e5 GH |
375 | ar->pm1.evt.sts = 0; |
376 | ar->pm1.evt.en = 0; | |
62aeb0f7 | 377 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_RTC, 0); |
6595abc0 | 378 | qemu_system_wakeup_enable(QEMU_WAKEUP_REASON_PMTIMER, 0); |
04dc308f IY |
379 | } |
380 | ||
b5a7c024 GH |
381 | static uint64_t acpi_pm_evt_read(void *opaque, hwaddr addr, unsigned width) |
382 | { | |
383 | ACPIREGS *ar = opaque; | |
384 | switch (addr) { | |
385 | case 0: | |
386 | return acpi_pm1_evt_get_sts(ar); | |
387 | case 2: | |
388 | return ar->pm1.evt.en; | |
389 | default: | |
390 | return 0; | |
391 | } | |
392 | } | |
393 | ||
394 | static void acpi_pm_evt_write(void *opaque, hwaddr addr, uint64_t val, | |
395 | unsigned width) | |
396 | { | |
397 | ACPIREGS *ar = opaque; | |
398 | switch (addr) { | |
399 | case 0: | |
400 | acpi_pm1_evt_write_sts(ar, val); | |
401 | ar->pm1.evt.update_sci(ar); | |
402 | break; | |
403 | case 2: | |
404 | acpi_pm1_evt_write_en(ar, val); | |
405 | ar->pm1.evt.update_sci(ar); | |
406 | break; | |
407 | } | |
408 | } | |
409 | ||
410 | static const MemoryRegionOps acpi_pm_evt_ops = { | |
411 | .read = acpi_pm_evt_read, | |
412 | .write = acpi_pm_evt_write, | |
413 | .valid.min_access_size = 2, | |
414 | .valid.max_access_size = 2, | |
415 | .endianness = DEVICE_LITTLE_ENDIAN, | |
416 | }; | |
417 | ||
418 | void acpi_pm1_evt_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, | |
419 | MemoryRegion *parent) | |
420 | { | |
421 | ar->pm1.evt.update_sci = update_sci; | |
422 | memory_region_init_io(&ar->pm1.evt.io, &acpi_pm_evt_ops, ar, "acpi-evt", 4); | |
423 | memory_region_add_subregion(parent, 0, &ar->pm1.evt.io); | |
424 | } | |
425 | ||
a54d41a8 | 426 | /* ACPI PM_TMR */ |
355bf2e5 | 427 | void acpi_pm_tmr_update(ACPIREGS *ar, bool enable) |
a54d41a8 IY |
428 | { |
429 | int64_t expire_time; | |
430 | ||
431 | /* schedule a timer interruption if needed */ | |
432 | if (enable) { | |
355bf2e5 | 433 | expire_time = muldiv64(ar->tmr.overflow_time, get_ticks_per_sec(), |
a54d41a8 | 434 | PM_TIMER_FREQUENCY); |
355bf2e5 | 435 | qemu_mod_timer(ar->tmr.timer, expire_time); |
a54d41a8 | 436 | } else { |
355bf2e5 | 437 | qemu_del_timer(ar->tmr.timer); |
a54d41a8 IY |
438 | } |
439 | } | |
440 | ||
355bf2e5 | 441 | void acpi_pm_tmr_calc_overflow_time(ACPIREGS *ar) |
a54d41a8 IY |
442 | { |
443 | int64_t d = acpi_pm_tmr_get_clock(); | |
355bf2e5 | 444 | ar->tmr.overflow_time = (d + 0x800000LL) & ~0x7fffffLL; |
a54d41a8 IY |
445 | } |
446 | ||
77d58b1e | 447 | static uint32_t acpi_pm_tmr_get(ACPIREGS *ar) |
a54d41a8 | 448 | { |
3a93113a | 449 | uint32_t d = acpi_pm_tmr_get_clock(); |
a54d41a8 IY |
450 | return d & 0xffffff; |
451 | } | |
452 | ||
453 | static void acpi_pm_tmr_timer(void *opaque) | |
454 | { | |
355bf2e5 | 455 | ACPIREGS *ar = opaque; |
6595abc0 | 456 | qemu_system_wakeup_request(QEMU_WAKEUP_REASON_PMTIMER); |
355bf2e5 | 457 | ar->tmr.update_sci(ar); |
a54d41a8 IY |
458 | } |
459 | ||
77d58b1e GH |
460 | static uint64_t acpi_pm_tmr_read(void *opaque, hwaddr addr, unsigned width) |
461 | { | |
462 | return acpi_pm_tmr_get(opaque); | |
463 | } | |
464 | ||
465 | static const MemoryRegionOps acpi_pm_tmr_ops = { | |
466 | .read = acpi_pm_tmr_read, | |
467 | .valid.min_access_size = 4, | |
468 | .valid.max_access_size = 4, | |
469 | .endianness = DEVICE_LITTLE_ENDIAN, | |
470 | }; | |
471 | ||
472 | void acpi_pm_tmr_init(ACPIREGS *ar, acpi_update_sci_fn update_sci, | |
473 | MemoryRegion *parent) | |
a54d41a8 | 474 | { |
355bf2e5 GH |
475 | ar->tmr.update_sci = update_sci; |
476 | ar->tmr.timer = qemu_new_timer_ns(vm_clock, acpi_pm_tmr_timer, ar); | |
77d58b1e GH |
477 | memory_region_init_io(&ar->tmr.io, &acpi_pm_tmr_ops, ar, "acpi-tmr", 4); |
478 | memory_region_add_subregion(parent, 8, &ar->tmr.io); | |
a54d41a8 IY |
479 | } |
480 | ||
355bf2e5 | 481 | void acpi_pm_tmr_reset(ACPIREGS *ar) |
a54d41a8 | 482 | { |
355bf2e5 GH |
483 | ar->tmr.overflow_time = 0; |
484 | qemu_del_timer(ar->tmr.timer); | |
a54d41a8 | 485 | } |
eaba51c5 IY |
486 | |
487 | /* ACPI PM1aCNT */ | |
afafe4bb | 488 | static void acpi_pm1_cnt_write(ACPIREGS *ar, uint16_t val) |
eaba51c5 | 489 | { |
355bf2e5 | 490 | ar->pm1.cnt.cnt = val & ~(ACPI_BITMASK_SLEEP_ENABLE); |
eaba51c5 IY |
491 | |
492 | if (val & ACPI_BITMASK_SLEEP_ENABLE) { | |
493 | /* change suspend type */ | |
494 | uint16_t sus_typ = (val >> 10) & 7; | |
495 | switch(sus_typ) { | |
496 | case 0: /* soft power off */ | |
497 | qemu_system_shutdown_request(); | |
498 | break; | |
499 | case 1: | |
da98c8eb GH |
500 | qemu_system_suspend_request(); |
501 | break; | |
eaba51c5 | 502 | default: |
afafe4bb | 503 | if (sus_typ == ar->pm1.cnt.s4_val) { /* S4 request */ |
25df49f6 | 504 | monitor_protocol_event(QEVENT_SUSPEND_DISK, NULL); |
459ae5ea GN |
505 | qemu_system_shutdown_request(); |
506 | } | |
eaba51c5 IY |
507 | break; |
508 | } | |
509 | } | |
510 | } | |
511 | ||
355bf2e5 | 512 | void acpi_pm1_cnt_update(ACPIREGS *ar, |
eaba51c5 IY |
513 | bool sci_enable, bool sci_disable) |
514 | { | |
515 | /* ACPI specs 3.0, 4.7.2.5 */ | |
516 | if (sci_enable) { | |
355bf2e5 | 517 | ar->pm1.cnt.cnt |= ACPI_BITMASK_SCI_ENABLE; |
eaba51c5 | 518 | } else if (sci_disable) { |
355bf2e5 | 519 | ar->pm1.cnt.cnt &= ~ACPI_BITMASK_SCI_ENABLE; |
eaba51c5 IY |
520 | } |
521 | } | |
522 | ||
afafe4bb GH |
523 | static uint64_t acpi_pm_cnt_read(void *opaque, hwaddr addr, unsigned width) |
524 | { | |
525 | ACPIREGS *ar = opaque; | |
526 | return ar->pm1.cnt.cnt; | |
527 | } | |
528 | ||
529 | static void acpi_pm_cnt_write(void *opaque, hwaddr addr, uint64_t val, | |
530 | unsigned width) | |
531 | { | |
532 | acpi_pm1_cnt_write(opaque, val); | |
533 | } | |
534 | ||
535 | static const MemoryRegionOps acpi_pm_cnt_ops = { | |
536 | .read = acpi_pm_cnt_read, | |
537 | .write = acpi_pm_cnt_write, | |
538 | .valid.min_access_size = 2, | |
539 | .valid.max_access_size = 2, | |
540 | .endianness = DEVICE_LITTLE_ENDIAN, | |
541 | }; | |
542 | ||
560e6396 | 543 | void acpi_pm1_cnt_init(ACPIREGS *ar, MemoryRegion *parent, uint8_t s4_val) |
afafe4bb | 544 | { |
560e6396 | 545 | ar->pm1.cnt.s4_val = s4_val; |
afafe4bb GH |
546 | ar->wakeup.notify = acpi_notify_wakeup; |
547 | qemu_register_wakeup_notifier(&ar->wakeup); | |
548 | memory_region_init_io(&ar->pm1.cnt.io, &acpi_pm_cnt_ops, ar, "acpi-cnt", 2); | |
549 | memory_region_add_subregion(parent, 4, &ar->pm1.cnt.io); | |
550 | } | |
551 | ||
355bf2e5 | 552 | void acpi_pm1_cnt_reset(ACPIREGS *ar) |
eaba51c5 | 553 | { |
355bf2e5 | 554 | ar->pm1.cnt.cnt = 0; |
eaba51c5 | 555 | } |
23910d3f IY |
556 | |
557 | /* ACPI GPE */ | |
355bf2e5 | 558 | void acpi_gpe_init(ACPIREGS *ar, uint8_t len) |
23910d3f | 559 | { |
355bf2e5 GH |
560 | ar->gpe.len = len; |
561 | ar->gpe.sts = g_malloc0(len / 2); | |
562 | ar->gpe.en = g_malloc0(len / 2); | |
23910d3f IY |
563 | } |
564 | ||
355bf2e5 | 565 | void acpi_gpe_reset(ACPIREGS *ar) |
23910d3f | 566 | { |
355bf2e5 GH |
567 | memset(ar->gpe.sts, 0, ar->gpe.len / 2); |
568 | memset(ar->gpe.en, 0, ar->gpe.len / 2); | |
23910d3f IY |
569 | } |
570 | ||
355bf2e5 | 571 | static uint8_t *acpi_gpe_ioport_get_ptr(ACPIREGS *ar, uint32_t addr) |
23910d3f IY |
572 | { |
573 | uint8_t *cur = NULL; | |
574 | ||
355bf2e5 GH |
575 | if (addr < ar->gpe.len / 2) { |
576 | cur = ar->gpe.sts + addr; | |
577 | } else if (addr < ar->gpe.len) { | |
578 | cur = ar->gpe.en + addr - ar->gpe.len / 2; | |
23910d3f IY |
579 | } else { |
580 | abort(); | |
581 | } | |
582 | ||
583 | return cur; | |
584 | } | |
585 | ||
355bf2e5 | 586 | void acpi_gpe_ioport_writeb(ACPIREGS *ar, uint32_t addr, uint32_t val) |
23910d3f IY |
587 | { |
588 | uint8_t *cur; | |
589 | ||
355bf2e5 GH |
590 | cur = acpi_gpe_ioport_get_ptr(ar, addr); |
591 | if (addr < ar->gpe.len / 2) { | |
23910d3f IY |
592 | /* GPE_STS */ |
593 | *cur = (*cur) & ~val; | |
355bf2e5 | 594 | } else if (addr < ar->gpe.len) { |
23910d3f IY |
595 | /* GPE_EN */ |
596 | *cur = val; | |
597 | } else { | |
598 | abort(); | |
599 | } | |
600 | } | |
601 | ||
355bf2e5 | 602 | uint32_t acpi_gpe_ioport_readb(ACPIREGS *ar, uint32_t addr) |
23910d3f IY |
603 | { |
604 | uint8_t *cur; | |
605 | uint32_t val; | |
606 | ||
355bf2e5 | 607 | cur = acpi_gpe_ioport_get_ptr(ar, addr); |
23910d3f IY |
608 | val = 0; |
609 | if (cur != NULL) { | |
610 | val = *cur; | |
611 | } | |
612 | ||
613 | return val; | |
614 | } |