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e516572f JB |
1 | /* |
2 | * ACPI implementation | |
3 | * | |
4 | * Copyright (c) 2006 Fabrice Bellard | |
6f918e40 JB |
5 | * Copyright (c) 2009 Isaku Yamahata <yamahata at valinux co jp> |
6 | * VA Linux Systems Japan K.K. | |
7 | * Copyright (C) 2012 Jason Baron <jbaron@redhat.com> | |
8 | * | |
9 | * This is based on acpi.c. | |
e516572f JB |
10 | * |
11 | * This library is free software; you can redistribute it and/or | |
12 | * modify it under the terms of the GNU Lesser General Public | |
13 | * License version 2 as published by the Free Software Foundation. | |
14 | * | |
15 | * This library is distributed in the hope that it will be useful, | |
16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | * Lesser General Public License for more details. | |
19 | * | |
20 | * You should have received a copy of the GNU Lesser General Public | |
21 | * License along with this library; if not, see <http://www.gnu.org/licenses/> | |
e516572f | 22 | * |
6f918e40 JB |
23 | * Contributions after 2012-01-13 are licensed under the terms of the |
24 | * GNU GPL, version 2 or (at your option) any later version. | |
e516572f | 25 | */ |
83c9f4ca | 26 | #include "hw/hw.h" |
6f1426ab | 27 | #include "qapi/visitor.h" |
0d09e41a | 28 | #include "hw/i386/pc.h" |
83c9f4ca | 29 | #include "hw/pci/pci.h" |
1de7afc9 | 30 | #include "qemu/timer.h" |
9c17d615 | 31 | #include "sysemu/sysemu.h" |
0d09e41a | 32 | #include "hw/acpi/acpi.h" |
9c17d615 | 33 | #include "sysemu/kvm.h" |
022c62cb | 34 | #include "exec/address-spaces.h" |
e516572f | 35 | |
0d09e41a | 36 | #include "hw/i386/ich9.h" |
1f862184 | 37 | #include "hw/mem/pc-dimm.h" |
e516572f JB |
38 | |
39 | //#define DEBUG | |
40 | ||
41 | #ifdef DEBUG | |
42 | #define ICH9_DEBUG(fmt, ...) \ | |
43 | do { printf("%s "fmt, __func__, ## __VA_ARGS__); } while (0) | |
44 | #else | |
45 | #define ICH9_DEBUG(fmt, ...) do { } while (0) | |
46 | #endif | |
47 | ||
e516572f JB |
48 | static void ich9_pm_update_sci_fn(ACPIREGS *regs) |
49 | { | |
50 | ICH9LPCPMRegs *pm = container_of(regs, ICH9LPCPMRegs, acpi_regs); | |
06313503 | 51 | acpi_update_sci(&pm->acpi_regs, pm->irq); |
e516572f JB |
52 | } |
53 | ||
76a7daf9 GH |
54 | static uint64_t ich9_gpe_readb(void *opaque, hwaddr addr, unsigned width) |
55 | { | |
56 | ICH9LPCPMRegs *pm = opaque; | |
57 | return acpi_gpe_ioport_readb(&pm->acpi_regs, addr); | |
58 | } | |
59 | ||
60 | static void ich9_gpe_writeb(void *opaque, hwaddr addr, uint64_t val, | |
61 | unsigned width) | |
62 | { | |
63 | ICH9LPCPMRegs *pm = opaque; | |
64 | acpi_gpe_ioport_writeb(&pm->acpi_regs, addr, val); | |
2c047956 | 65 | acpi_update_sci(&pm->acpi_regs, pm->irq); |
76a7daf9 GH |
66 | } |
67 | ||
68 | static const MemoryRegionOps ich9_gpe_ops = { | |
69 | .read = ich9_gpe_readb, | |
70 | .write = ich9_gpe_writeb, | |
71 | .valid.min_access_size = 1, | |
72 | .valid.max_access_size = 4, | |
73 | .impl.min_access_size = 1, | |
74 | .impl.max_access_size = 1, | |
75 | .endianness = DEVICE_LITTLE_ENDIAN, | |
76 | }; | |
77 | ||
10cc69b0 GH |
78 | static uint64_t ich9_smi_readl(void *opaque, hwaddr addr, unsigned width) |
79 | { | |
80 | ICH9LPCPMRegs *pm = opaque; | |
81 | switch (addr) { | |
82 | case 0: | |
83 | return pm->smi_en; | |
84 | case 4: | |
85 | return pm->smi_sts; | |
86 | default: | |
87 | return 0; | |
88 | } | |
89 | } | |
90 | ||
91 | static void ich9_smi_writel(void *opaque, hwaddr addr, uint64_t val, | |
92 | unsigned width) | |
93 | { | |
94 | ICH9LPCPMRegs *pm = opaque; | |
95 | switch (addr) { | |
96 | case 0: | |
11e66a15 GH |
97 | pm->smi_en &= ~pm->smi_en_wmask; |
98 | pm->smi_en |= (val & pm->smi_en_wmask); | |
10cc69b0 GH |
99 | break; |
100 | } | |
101 | } | |
102 | ||
103 | static const MemoryRegionOps ich9_smi_ops = { | |
104 | .read = ich9_smi_readl, | |
105 | .write = ich9_smi_writel, | |
106 | .valid.min_access_size = 4, | |
107 | .valid.max_access_size = 4, | |
108 | .endianness = DEVICE_LITTLE_ENDIAN, | |
109 | }; | |
110 | ||
e516572f JB |
111 | void ich9_pm_iospace_update(ICH9LPCPMRegs *pm, uint32_t pm_io_base) |
112 | { | |
113 | ICH9_DEBUG("to 0x%x\n", pm_io_base); | |
114 | ||
115 | assert((pm_io_base & ICH9_PMIO_MASK) == 0); | |
116 | ||
e516572f | 117 | pm->pm_io_base = pm_io_base; |
cacaab8b GH |
118 | memory_region_transaction_begin(); |
119 | memory_region_set_enabled(&pm->io, pm->pm_io_base != 0); | |
120 | memory_region_set_address(&pm->io, pm->pm_io_base); | |
121 | memory_region_transaction_commit(); | |
e516572f JB |
122 | } |
123 | ||
124 | static int ich9_pm_post_load(void *opaque, int version_id) | |
125 | { | |
126 | ICH9LPCPMRegs *pm = opaque; | |
127 | uint32_t pm_io_base = pm->pm_io_base; | |
128 | pm->pm_io_base = 0; | |
129 | ich9_pm_iospace_update(pm, pm_io_base); | |
130 | return 0; | |
131 | } | |
132 | ||
133 | #define VMSTATE_GPE_ARRAY(_field, _state) \ | |
134 | { \ | |
135 | .name = (stringify(_field)), \ | |
136 | .version_id = 0, \ | |
137 | .num = ICH9_PMIO_GPE0_LEN, \ | |
138 | .info = &vmstate_info_uint8, \ | |
139 | .size = sizeof(uint8_t), \ | |
140 | .flags = VMS_ARRAY | VMS_POINTER, \ | |
141 | .offset = vmstate_offset_pointer(_state, _field, uint8_t), \ | |
142 | } | |
143 | ||
f816a62d IM |
144 | static bool vmstate_test_use_memhp(void *opaque) |
145 | { | |
146 | ICH9LPCPMRegs *s = opaque; | |
147 | return s->acpi_memory_hotplug.is_enabled; | |
148 | } | |
149 | ||
150 | static const VMStateDescription vmstate_memhp_state = { | |
151 | .name = "ich9_pm/memhp", | |
152 | .version_id = 1, | |
153 | .minimum_version_id = 1, | |
154 | .minimum_version_id_old = 1, | |
5cd8cada | 155 | .needed = vmstate_test_use_memhp, |
f816a62d IM |
156 | .fields = (VMStateField[]) { |
157 | VMSTATE_MEMORY_HOTPLUG(acpi_memory_hotplug, ICH9LPCPMRegs), | |
158 | VMSTATE_END_OF_LIST() | |
159 | } | |
160 | }; | |
161 | ||
e516572f JB |
162 | const VMStateDescription vmstate_ich9_pm = { |
163 | .name = "ich9_pm", | |
164 | .version_id = 1, | |
165 | .minimum_version_id = 1, | |
e516572f JB |
166 | .post_load = ich9_pm_post_load, |
167 | .fields = (VMStateField[]) { | |
168 | VMSTATE_UINT16(acpi_regs.pm1.evt.sts, ICH9LPCPMRegs), | |
169 | VMSTATE_UINT16(acpi_regs.pm1.evt.en, ICH9LPCPMRegs), | |
170 | VMSTATE_UINT16(acpi_regs.pm1.cnt.cnt, ICH9LPCPMRegs), | |
e720677e | 171 | VMSTATE_TIMER_PTR(acpi_regs.tmr.timer, ICH9LPCPMRegs), |
e516572f JB |
172 | VMSTATE_INT64(acpi_regs.tmr.overflow_time, ICH9LPCPMRegs), |
173 | VMSTATE_GPE_ARRAY(acpi_regs.gpe.sts, ICH9LPCPMRegs), | |
174 | VMSTATE_GPE_ARRAY(acpi_regs.gpe.en, ICH9LPCPMRegs), | |
175 | VMSTATE_UINT32(smi_en, ICH9LPCPMRegs), | |
176 | VMSTATE_UINT32(smi_sts, ICH9LPCPMRegs), | |
177 | VMSTATE_END_OF_LIST() | |
f816a62d | 178 | }, |
5cd8cada JQ |
179 | .subsections = (const VMStateDescription*[]) { |
180 | &vmstate_memhp_state, | |
181 | NULL | |
e516572f JB |
182 | } |
183 | }; | |
184 | ||
185 | static void pm_reset(void *opaque) | |
186 | { | |
187 | ICH9LPCPMRegs *pm = opaque; | |
188 | ich9_pm_iospace_update(pm, 0); | |
189 | ||
190 | acpi_pm1_evt_reset(&pm->acpi_regs); | |
191 | acpi_pm1_cnt_reset(&pm->acpi_regs); | |
192 | acpi_pm_tmr_reset(&pm->acpi_regs); | |
193 | acpi_gpe_reset(&pm->acpi_regs); | |
194 | ||
21bcfdd9 JK |
195 | if (kvm_enabled()) { |
196 | /* Mark SMM as already inited to prevent SMM from running. KVM does not | |
197 | * support SMM mode. */ | |
198 | pm->smi_en |= ICH9_PMIO_SMI_EN_APMC_EN; | |
199 | } | |
11e66a15 | 200 | pm->smi_en_wmask = ~0; |
21bcfdd9 | 201 | |
06313503 | 202 | acpi_update_sci(&pm->acpi_regs, pm->irq); |
e516572f JB |
203 | } |
204 | ||
205 | static void pm_powerdown_req(Notifier *n, void *opaque) | |
206 | { | |
207 | ICH9LPCPMRegs *pm = container_of(n, ICH9LPCPMRegs, powerdown_notifier); | |
208 | ||
209 | acpi_pm1_evt_power_down(&pm->acpi_regs); | |
210 | } | |
211 | ||
503b19fc | 212 | void ich9_pm_init(PCIDevice *lpc_pci, ICH9LPCPMRegs *pm, |
a3ac6b53 | 213 | qemu_irq sci_irq) |
e516572f | 214 | { |
64bde0f3 | 215 | memory_region_init(&pm->io, OBJECT(lpc_pci), "ich9-pm", ICH9_PMIO_SIZE); |
cacaab8b | 216 | memory_region_set_enabled(&pm->io, false); |
503b19fc GH |
217 | memory_region_add_subregion(pci_address_space_io(lpc_pci), |
218 | 0, &pm->io); | |
cacaab8b | 219 | |
77d58b1e | 220 | acpi_pm_tmr_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io); |
b5a7c024 | 221 | acpi_pm1_evt_init(&pm->acpi_regs, ich9_pm_update_sci_fn, &pm->io); |
9a10bbb4 LE |
222 | acpi_pm1_cnt_init(&pm->acpi_regs, &pm->io, pm->disable_s3, pm->disable_s4, |
223 | pm->s4_val); | |
76a7daf9 | 224 | |
e516572f | 225 | acpi_gpe_init(&pm->acpi_regs, ICH9_PMIO_GPE0_LEN); |
64bde0f3 | 226 | memory_region_init_io(&pm->io_gpe, OBJECT(lpc_pci), &ich9_gpe_ops, pm, |
75902802 | 227 | "acpi-gpe0", ICH9_PMIO_GPE0_LEN); |
76a7daf9 | 228 | memory_region_add_subregion(&pm->io, ICH9_PMIO_GPE0_STS, &pm->io_gpe); |
e516572f | 229 | |
64bde0f3 | 230 | memory_region_init_io(&pm->io_smi, OBJECT(lpc_pci), &ich9_smi_ops, pm, |
75902802 | 231 | "acpi-smi", 8); |
10cc69b0 GH |
232 | memory_region_add_subregion(&pm->io, ICH9_PMIO_SMI_EN, &pm->io_smi); |
233 | ||
e516572f JB |
234 | pm->irq = sci_irq; |
235 | qemu_register_reset(pm_reset, pm); | |
236 | pm->powerdown_notifier.notify = pm_powerdown_req; | |
237 | qemu_register_powerdown_notifier(&pm->powerdown_notifier); | |
d6610bc2 | 238 | |
411b5db8 GZ |
239 | acpi_cpu_hotplug_init(pci_address_space_io(lpc_pci), OBJECT(lpc_pci), |
240 | &pm->gpe_cpu, ICH9_CPU_HOTPLUG_IO_BASE); | |
1f862184 IM |
241 | |
242 | if (pm->acpi_memory_hotplug.is_enabled) { | |
243 | acpi_memory_hotplug_init(pci_address_space_io(lpc_pci), OBJECT(lpc_pci), | |
244 | &pm->acpi_memory_hotplug); | |
245 | } | |
e516572f | 246 | } |
6f1426ab MT |
247 | |
248 | static void ich9_pm_get_gpe0_blk(Object *obj, Visitor *v, | |
249 | void *opaque, const char *name, | |
250 | Error **errp) | |
251 | { | |
252 | ICH9LPCPMRegs *pm = opaque; | |
253 | uint32_t value = pm->pm_io_base + ICH9_PMIO_GPE0_STS; | |
254 | ||
255 | visit_type_uint32(v, &value, name, errp); | |
256 | } | |
257 | ||
1f862184 IM |
258 | static bool ich9_pm_get_memory_hotplug_support(Object *obj, Error **errp) |
259 | { | |
260 | ICH9LPCState *s = ICH9_LPC_DEVICE(obj); | |
261 | ||
262 | return s->pm.acpi_memory_hotplug.is_enabled; | |
263 | } | |
264 | ||
265 | static void ich9_pm_set_memory_hotplug_support(Object *obj, bool value, | |
266 | Error **errp) | |
267 | { | |
268 | ICH9LPCState *s = ICH9_LPC_DEVICE(obj); | |
269 | ||
270 | s->pm.acpi_memory_hotplug.is_enabled = value; | |
271 | } | |
272 | ||
6ac0d8d4 AS |
273 | static void ich9_pm_get_disable_s3(Object *obj, Visitor *v, |
274 | void *opaque, const char *name, | |
275 | Error **errp) | |
276 | { | |
277 | ICH9LPCPMRegs *pm = opaque; | |
278 | uint8_t value = pm->disable_s3; | |
279 | ||
280 | visit_type_uint8(v, &value, name, errp); | |
281 | } | |
282 | ||
283 | static void ich9_pm_set_disable_s3(Object *obj, Visitor *v, | |
284 | void *opaque, const char *name, | |
285 | Error **errp) | |
286 | { | |
287 | ICH9LPCPMRegs *pm = opaque; | |
288 | Error *local_err = NULL; | |
289 | uint8_t value; | |
290 | ||
291 | visit_type_uint8(v, &value, name, &local_err); | |
292 | if (local_err) { | |
293 | goto out; | |
294 | } | |
295 | pm->disable_s3 = value; | |
296 | out: | |
297 | error_propagate(errp, local_err); | |
298 | } | |
299 | ||
300 | static void ich9_pm_get_disable_s4(Object *obj, Visitor *v, | |
301 | void *opaque, const char *name, | |
302 | Error **errp) | |
303 | { | |
304 | ICH9LPCPMRegs *pm = opaque; | |
305 | uint8_t value = pm->disable_s4; | |
306 | ||
307 | visit_type_uint8(v, &value, name, errp); | |
308 | } | |
309 | ||
310 | static void ich9_pm_set_disable_s4(Object *obj, Visitor *v, | |
311 | void *opaque, const char *name, | |
312 | Error **errp) | |
313 | { | |
314 | ICH9LPCPMRegs *pm = opaque; | |
315 | Error *local_err = NULL; | |
316 | uint8_t value; | |
317 | ||
318 | visit_type_uint8(v, &value, name, &local_err); | |
319 | if (local_err) { | |
320 | goto out; | |
321 | } | |
322 | pm->disable_s4 = value; | |
323 | out: | |
324 | error_propagate(errp, local_err); | |
325 | } | |
326 | ||
327 | static void ich9_pm_get_s4_val(Object *obj, Visitor *v, | |
328 | void *opaque, const char *name, | |
329 | Error **errp) | |
330 | { | |
331 | ICH9LPCPMRegs *pm = opaque; | |
332 | uint8_t value = pm->s4_val; | |
333 | ||
334 | visit_type_uint8(v, &value, name, errp); | |
335 | } | |
336 | ||
337 | static void ich9_pm_set_s4_val(Object *obj, Visitor *v, | |
338 | void *opaque, const char *name, | |
339 | Error **errp) | |
340 | { | |
341 | ICH9LPCPMRegs *pm = opaque; | |
342 | Error *local_err = NULL; | |
343 | uint8_t value; | |
344 | ||
345 | visit_type_uint8(v, &value, name, &local_err); | |
346 | if (local_err) { | |
347 | goto out; | |
348 | } | |
349 | pm->s4_val = value; | |
350 | out: | |
351 | error_propagate(errp, local_err); | |
352 | } | |
353 | ||
6f1426ab MT |
354 | void ich9_pm_add_properties(Object *obj, ICH9LPCPMRegs *pm, Error **errp) |
355 | { | |
356 | static const uint32_t gpe0_len = ICH9_PMIO_GPE0_LEN; | |
1f862184 | 357 | pm->acpi_memory_hotplug.is_enabled = true; |
6ac0d8d4 AS |
358 | pm->disable_s3 = 0; |
359 | pm->disable_s4 = 0; | |
360 | pm->s4_val = 2; | |
6f1426ab MT |
361 | |
362 | object_property_add_uint32_ptr(obj, ACPI_PM_PROP_PM_IO_BASE, | |
363 | &pm->pm_io_base, errp); | |
364 | object_property_add(obj, ACPI_PM_PROP_GPE0_BLK, "uint32", | |
365 | ich9_pm_get_gpe0_blk, | |
366 | NULL, NULL, pm, NULL); | |
367 | object_property_add_uint32_ptr(obj, ACPI_PM_PROP_GPE0_BLK_LEN, | |
368 | &gpe0_len, errp); | |
1f862184 IM |
369 | object_property_add_bool(obj, "memory-hotplug-support", |
370 | ich9_pm_get_memory_hotplug_support, | |
371 | ich9_pm_set_memory_hotplug_support, | |
372 | NULL); | |
6ac0d8d4 AS |
373 | object_property_add(obj, ACPI_PM_PROP_S3_DISABLED, "uint8", |
374 | ich9_pm_get_disable_s3, | |
375 | ich9_pm_set_disable_s3, | |
376 | NULL, pm, NULL); | |
377 | object_property_add(obj, ACPI_PM_PROP_S4_DISABLED, "uint8", | |
378 | ich9_pm_get_disable_s4, | |
379 | ich9_pm_set_disable_s4, | |
380 | NULL, pm, NULL); | |
381 | object_property_add(obj, ACPI_PM_PROP_S4_VAL, "uint8", | |
382 | ich9_pm_get_s4_val, | |
383 | ich9_pm_set_s4_val, | |
384 | NULL, pm, NULL); | |
1f862184 IM |
385 | } |
386 | ||
387 | void ich9_pm_device_plug_cb(ICH9LPCPMRegs *pm, DeviceState *dev, Error **errp) | |
388 | { | |
389 | if (pm->acpi_memory_hotplug.is_enabled && | |
390 | object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { | |
391 | acpi_memory_plug_cb(&pm->acpi_regs, pm->irq, &pm->acpi_memory_hotplug, | |
392 | dev, errp); | |
c5171ed0 GZ |
393 | } else if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { |
394 | acpi_cpu_plug_cb(&pm->acpi_regs, pm->irq, &pm->gpe_cpu, dev, errp); | |
1f862184 IM |
395 | } else { |
396 | error_setg(errp, "acpi: device plug request for not supported device" | |
397 | " type: %s", object_get_typename(OBJECT(dev))); | |
398 | } | |
6f1426ab | 399 | } |
43f50410 | 400 | |
469b8ad2 TC |
401 | void ich9_pm_device_unplug_request_cb(ICH9LPCPMRegs *pm, DeviceState *dev, |
402 | Error **errp) | |
403 | { | |
64fec58e TC |
404 | if (pm->acpi_memory_hotplug.is_enabled && |
405 | object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { | |
406 | acpi_memory_unplug_request_cb(&pm->acpi_regs, pm->irq, | |
407 | &pm->acpi_memory_hotplug, dev, errp); | |
408 | } else { | |
409 | error_setg(errp, "acpi: device unplug request for not supported device" | |
410 | " type: %s", object_get_typename(OBJECT(dev))); | |
411 | } | |
469b8ad2 TC |
412 | } |
413 | ||
91a734a6 TC |
414 | void ich9_pm_device_unplug_cb(ICH9LPCPMRegs *pm, DeviceState *dev, |
415 | Error **errp) | |
416 | { | |
f7d3e29d TC |
417 | if (pm->acpi_memory_hotplug.is_enabled && |
418 | object_dynamic_cast(OBJECT(dev), TYPE_PC_DIMM)) { | |
419 | acpi_memory_unplug_cb(&pm->acpi_memory_hotplug, dev, errp); | |
420 | } else { | |
421 | error_setg(errp, "acpi: device unplug for not supported device" | |
422 | " type: %s", object_get_typename(OBJECT(dev))); | |
423 | } | |
91a734a6 TC |
424 | } |
425 | ||
43f50410 IM |
426 | void ich9_pm_ospm_status(AcpiDeviceIf *adev, ACPIOSTInfoList ***list) |
427 | { | |
428 | ICH9LPCState *s = ICH9_LPC_DEVICE(adev); | |
429 | ||
430 | acpi_memory_ospm_status(&s->pm.acpi_memory_hotplug, list); | |
431 | } |