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Merge remote-tracking branch 'remotes/bonzini-gitlab/tags/for-upstream' into staging
[qemu/ar7.git] / hw / i386 / acpi-build.c
blobde98750aeff6bdec266a85c38357b7e8a1517061
1 /* Support for generating ACPI tables and passing them to Guests
2 *
3 * Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
4 * Copyright (C) 2006 Fabrice Bellard
5 * Copyright (C) 2013 Red Hat Inc
6 *
7 * Author: Michael S. Tsirkin <mst@redhat.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, see <http://www.gnu.org/licenses/>.
21 */
22
23 #include "qemu/osdep.h"
24 #include "qapi/error.h"
25 #include "qapi/qmp/qnum.h"
26 #include "acpi-build.h"
27 #include "acpi-common.h"
28 #include "qemu/bitmap.h"
29 #include "qemu/error-report.h"
30 #include "hw/pci/pci.h"
31 #include "hw/core/cpu.h"
32 #include "target/i386/cpu.h"
33 #include "hw/misc/pvpanic.h"
34 #include "hw/timer/hpet.h"
35 #include "hw/acpi/acpi-defs.h"
36 #include "hw/acpi/acpi.h"
37 #include "hw/acpi/cpu.h"
38 #include "hw/nvram/fw_cfg.h"
39 #include "hw/acpi/bios-linker-loader.h"
40 #include "hw/isa/isa.h"
41 #include "hw/block/fdc.h"
42 #include "hw/acpi/memory_hotplug.h"
43 #include "sysemu/tpm.h"
44 #include "hw/acpi/tpm.h"
45 #include "hw/acpi/vmgenid.h"
46 #include "hw/boards.h"
47 #include "sysemu/tpm_backend.h"
48 #include "hw/rtc/mc146818rtc_regs.h"
49 #include "migration/vmstate.h"
50 #include "hw/mem/memory-device.h"
51 #include "hw/mem/nvdimm.h"
52 #include "sysemu/numa.h"
53 #include "sysemu/reset.h"
54 #include "hw/hyperv/vmbus-bridge.h"
55
56 /* Supported chipsets: */
57 #include "hw/southbridge/piix.h"
58 #include "hw/acpi/pcihp.h"
59 #include "hw/i386/fw_cfg.h"
60 #include "hw/i386/ich9.h"
61 #include "hw/pci/pci_bus.h"
62 #include "hw/pci-host/q35.h"
63 #include "hw/i386/x86-iommu.h"
64
65 #include "hw/acpi/aml-build.h"
66 #include "hw/acpi/utils.h"
67 #include "hw/acpi/pci.h"
68
69 #include "qom/qom-qobject.h"
70 #include "hw/i386/amd_iommu.h"
71 #include "hw/i386/intel_iommu.h"
72
73 #include "hw/acpi/ipmi.h"
74 #include "hw/acpi/hmat.h"
75
76 /* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
77 * -M pc-i440fx-2.0. Even if the actual amount of AML generated grows
78 * a little bit, there should be plenty of free space since the DSDT
79 * shrunk by ~1.5k between QEMU 2.0 and QEMU 2.1.
80 */
81 #define ACPI_BUILD_LEGACY_CPU_AML_SIZE 97
82 #define ACPI_BUILD_ALIGN_SIZE 0x1000
83
84 #define ACPI_BUILD_TABLE_SIZE 0x20000
85
86 /* #define DEBUG_ACPI_BUILD */
87 #ifdef DEBUG_ACPI_BUILD
88 #define ACPI_BUILD_DPRINTF(fmt, ...) \
89 do {printf("ACPI_BUILD: " fmt, ## __VA_ARGS__); } while (0)
90 #else
91 #define ACPI_BUILD_DPRINTF(fmt, ...)
92 #endif
93
94 typedef struct AcpiPmInfo {
95 bool s3_disabled;
96 bool s4_disabled;
97 bool pcihp_bridge_en;
98 bool smi_on_cpuhp;
99 bool smi_on_cpu_unplug;
100 bool pcihp_root_en;
101 uint8_t s4_val;
102 AcpiFadtData fadt;
103 uint16_t cpu_hp_io_base;
104 uint16_t pcihp_io_base;
105 uint16_t pcihp_io_len;
106 } AcpiPmInfo;
107
108 typedef struct AcpiMiscInfo {
109 bool is_piix4;
110 bool has_hpet;
111 TPMVersion tpm_version;
112 const unsigned char *dsdt_code;
113 unsigned dsdt_size;
114 uint16_t pvpanic_port;
115 uint16_t applesmc_io_base;
116 } AcpiMiscInfo;
117
118 typedef struct AcpiBuildPciBusHotplugState {
119 GArray *device_table;
120 GArray *notify_table;
121 struct AcpiBuildPciBusHotplugState *parent;
122 bool pcihp_bridge_en;
123 } AcpiBuildPciBusHotplugState;
124
125 typedef struct FwCfgTPMConfig {
126 uint32_t tpmppi_address;
127 uint8_t tpm_version;
128 uint8_t tpmppi_version;
129 } QEMU_PACKED FwCfgTPMConfig;
130
131 static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg);
132
133 const struct AcpiGenericAddress x86_nvdimm_acpi_dsmio = {
134 .space_id = AML_AS_SYSTEM_IO,
135 .address = NVDIMM_ACPI_IO_BASE,
136 .bit_width = NVDIMM_ACPI_IO_LEN << 3
137 };
138
139 static void init_common_fadt_data(MachineState *ms, Object *o,
140 AcpiFadtData *data)
141 {
142 X86MachineState *x86ms = X86_MACHINE(ms);
143 /*
144 * "ICH9-LPC" or "PIIX4_PM" has "smm-compat" property to keep the old
145 * behavior for compatibility irrelevant to smm_enabled, which doesn't
146 * comforms to ACPI spec.
147 */
148 bool smm_enabled = object_property_get_bool(o, "smm-compat", NULL) ?
149 true : x86_machine_is_smm_enabled(x86ms);
150 uint32_t io = object_property_get_uint(o, ACPI_PM_PROP_PM_IO_BASE, NULL);
151 AmlAddressSpace as = AML_AS_SYSTEM_IO;
152 AcpiFadtData fadt = {
153 .rev = 3,
154 .flags =
155 (1 << ACPI_FADT_F_WBINVD) |
156 (1 << ACPI_FADT_F_PROC_C1) |
157 (1 << ACPI_FADT_F_SLP_BUTTON) |
158 (1 << ACPI_FADT_F_RTC_S4) |
159 (1 << ACPI_FADT_F_USE_PLATFORM_CLOCK) |
160 /* APIC destination mode ("Flat Logical") has an upper limit of 8
161 * CPUs for more than 8 CPUs, "Clustered Logical" mode has to be
162 * used
163 */
164 ((ms->smp.max_cpus > 8) ?
165 (1 << ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL) : 0),
166 .int_model = 1 /* Multiple APIC */,
167 .rtc_century = RTC_CENTURY,
168 .plvl2_lat = 0xfff /* C2 state not supported */,
169 .plvl3_lat = 0xfff /* C3 state not supported */,
170 .smi_cmd = smm_enabled ? ACPI_PORT_SMI_CMD : 0,
171 .sci_int = object_property_get_uint(o, ACPI_PM_PROP_SCI_INT, NULL),
172 .acpi_enable_cmd =
173 smm_enabled ?
174 object_property_get_uint(o, ACPI_PM_PROP_ACPI_ENABLE_CMD, NULL) :
175 0,
176 .acpi_disable_cmd =
177 smm_enabled ?
178 object_property_get_uint(o, ACPI_PM_PROP_ACPI_DISABLE_CMD, NULL) :
179 0,
180 .pm1a_evt = { .space_id = as, .bit_width = 4 * 8, .address = io },
181 .pm1a_cnt = { .space_id = as, .bit_width = 2 * 8,
182 .address = io + 0x04 },
183 .pm_tmr = { .space_id = as, .bit_width = 4 * 8, .address = io + 0x08 },
184 .gpe0_blk = { .space_id = as, .bit_width =
185 object_property_get_uint(o, ACPI_PM_PROP_GPE0_BLK_LEN, NULL) * 8,
186 .address = object_property_get_uint(o, ACPI_PM_PROP_GPE0_BLK, NULL)
187 },
188 };
189 *data = fadt;
190 }
191
192 static Object *object_resolve_type_unambiguous(const char *typename)
193 {
194 bool ambig;
195 Object *o = object_resolve_path_type("", typename, &ambig);
196
197 if (ambig || !o) {
198 return NULL;
199 }
200 return o;
201 }
202
203 static void acpi_get_pm_info(MachineState *machine, AcpiPmInfo *pm)
204 {
205 Object *piix = object_resolve_type_unambiguous(TYPE_PIIX4_PM);
206 Object *lpc = object_resolve_type_unambiguous(TYPE_ICH9_LPC_DEVICE);
207 Object *obj = piix ? piix : lpc;
208 QObject *o;
209 pm->cpu_hp_io_base = 0;
210 pm->pcihp_io_base = 0;
211 pm->pcihp_io_len = 0;
212 pm->smi_on_cpuhp = false;
213 pm->smi_on_cpu_unplug = false;
214
215 assert(obj);
216 init_common_fadt_data(machine, obj, &pm->fadt);
217 if (piix) {
218 /* w2k requires FADT(rev1) or it won't boot, keep PC compatible */
219 pm->fadt.rev = 1;
220 pm->cpu_hp_io_base = PIIX4_CPU_HOTPLUG_IO_BASE;
221 pm->pcihp_io_base =
222 object_property_get_uint(obj, ACPI_PCIHP_IO_BASE_PROP, NULL);
223 pm->pcihp_io_len =
224 object_property_get_uint(obj, ACPI_PCIHP_IO_LEN_PROP, NULL);
225 }
226 if (lpc) {
227 uint64_t smi_features = object_property_get_uint(lpc,
228 ICH9_LPC_SMI_NEGOTIATED_FEAT_PROP, NULL);
229 struct AcpiGenericAddress r = { .space_id = AML_AS_SYSTEM_IO,
230 .bit_width = 8, .address = ICH9_RST_CNT_IOPORT };
231 pm->fadt.reset_reg = r;
232 pm->fadt.reset_val = 0xf;
233 pm->fadt.flags |= 1 << ACPI_FADT_F_RESET_REG_SUP;
234 pm->cpu_hp_io_base = ICH9_CPU_HOTPLUG_IO_BASE;
235 pm->smi_on_cpuhp =
236 !!(smi_features & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOTPLUG_BIT));
237 pm->smi_on_cpu_unplug =
238 !!(smi_features & BIT_ULL(ICH9_LPC_SMI_F_CPU_HOT_UNPLUG_BIT));
239 }
240
241 /* The above need not be conditional on machine type because the reset port
242 * happens to be the same on PIIX (pc) and ICH9 (q35). */
243 QEMU_BUILD_BUG_ON(ICH9_RST_CNT_IOPORT != PIIX_RCR_IOPORT);
244
245 /* Fill in optional s3/s4 related properties */
246 o = object_property_get_qobject(obj, ACPI_PM_PROP_S3_DISABLED, NULL);
247 if (o) {
248 pm->s3_disabled = qnum_get_uint(qobject_to(QNum, o));
249 } else {
250 pm->s3_disabled = false;
251 }
252 qobject_unref(o);
253 o = object_property_get_qobject(obj, ACPI_PM_PROP_S4_DISABLED, NULL);
254 if (o) {
255 pm->s4_disabled = qnum_get_uint(qobject_to(QNum, o));
256 } else {
257 pm->s4_disabled = false;
258 }
259 qobject_unref(o);
260 o = object_property_get_qobject(obj, ACPI_PM_PROP_S4_VAL, NULL);
261 if (o) {
262 pm->s4_val = qnum_get_uint(qobject_to(QNum, o));
263 } else {
264 pm->s4_val = false;
265 }
266 qobject_unref(o);
267
268 pm->pcihp_bridge_en =
269 object_property_get_bool(obj, "acpi-pci-hotplug-with-bridge-support",
270 NULL);
271 pm->pcihp_root_en =
272 object_property_get_bool(obj, "acpi-root-pci-hotplug",
273 NULL);
274 }
275
276 static void acpi_get_misc_info(AcpiMiscInfo *info)
277 {
278 Object *piix = object_resolve_type_unambiguous(TYPE_PIIX4_PM);
279 Object *lpc = object_resolve_type_unambiguous(TYPE_ICH9_LPC_DEVICE);
280 assert(!!piix != !!lpc);
281
282 if (piix) {
283 info->is_piix4 = true;
284 }
285 if (lpc) {
286 info->is_piix4 = false;
287 }
288
289 info->has_hpet = hpet_find();
290 info->tpm_version = tpm_get_version(tpm_find());
291 info->pvpanic_port = pvpanic_port();
292 info->applesmc_io_base = applesmc_port();
293 }
294
295 /*
296 * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
297 * On i386 arch we only have two pci hosts, so we can look only for them.
298 */
299 static Object *acpi_get_i386_pci_host(void)
300 {
301 PCIHostState *host;
302
303 host = OBJECT_CHECK(PCIHostState,
304 object_resolve_path("/machine/i440fx", NULL),
305 TYPE_PCI_HOST_BRIDGE);
306 if (!host) {
307 host = OBJECT_CHECK(PCIHostState,
308 object_resolve_path("/machine/q35", NULL),
309 TYPE_PCI_HOST_BRIDGE);
310 }
311
312 return OBJECT(host);
313 }
314
315 static void acpi_get_pci_holes(Range *hole, Range *hole64)
316 {
317 Object *pci_host;
318
319 pci_host = acpi_get_i386_pci_host();
320 g_assert(pci_host);
321
322 range_set_bounds1(hole,
323 object_property_get_uint(pci_host,
324 PCI_HOST_PROP_PCI_HOLE_START,
325 NULL),
326 object_property_get_uint(pci_host,
327 PCI_HOST_PROP_PCI_HOLE_END,
328 NULL));
329 range_set_bounds1(hole64,
330 object_property_get_uint(pci_host,
331 PCI_HOST_PROP_PCI_HOLE64_START,
332 NULL),
333 object_property_get_uint(pci_host,
334 PCI_HOST_PROP_PCI_HOLE64_END,
335 NULL));
336 }
337
338 static void acpi_align_size(GArray *blob, unsigned align)
339 {
340 /* Align size to multiple of given size. This reduces the chance
341 * we need to change size in the future (breaking cross version migration).
342 */
343 g_array_set_size(blob, ROUND_UP(acpi_data_len(blob), align));
344 }
345
346 /* FACS */
347 static void
348 build_facs(GArray *table_data)
349 {
350 AcpiFacsDescriptorRev1 *facs = acpi_data_push(table_data, sizeof *facs);
351 memcpy(&facs->signature, "FACS", 4);
352 facs->length = cpu_to_le32(sizeof(*facs));
353 }
354
355 static void build_append_pcihp_notify_entry(Aml *method, int slot)
356 {
357 Aml *if_ctx;
358 int32_t devfn = PCI_DEVFN(slot, 0);
359
360 if_ctx = aml_if(aml_and(aml_arg(0), aml_int(0x1U << slot), NULL));
361 aml_append(if_ctx, aml_notify(aml_name("S%.02X", devfn), aml_arg(1)));
362 aml_append(method, if_ctx);
363 }
364
365 static void build_append_pci_bus_devices(Aml *parent_scope, PCIBus *bus,
366 bool pcihp_bridge_en)
367 {
368 Aml *dev, *notify_method = NULL, *method;
369 QObject *bsel;
370 PCIBus *sec;
371 int i;
372
373 bsel = object_property_get_qobject(OBJECT(bus), ACPI_PCIHP_PROP_BSEL, NULL);
374 if (bsel) {
375 uint64_t bsel_val = qnum_get_uint(qobject_to(QNum, bsel));
376
377 aml_append(parent_scope, aml_name_decl("BSEL", aml_int(bsel_val)));
378 notify_method = aml_method("DVNT", 2, AML_NOTSERIALIZED);
379 }
380
381 for (i = 0; i < ARRAY_SIZE(bus->devices); i += PCI_FUNC_MAX) {
382 DeviceClass *dc;
383 PCIDeviceClass *pc;
384 PCIDevice *pdev = bus->devices[i];
385 int slot = PCI_SLOT(i);
386 bool hotplug_enabled_dev;
387 bool bridge_in_acpi;
388 bool cold_plugged_bridge;
389
390 if (!pdev) {
391 if (bsel) { /* add hotplug slots for non present devices */
392 dev = aml_device("S%.02X", PCI_DEVFN(slot, 0));
393 aml_append(dev, aml_name_decl("_SUN", aml_int(slot)));
394 aml_append(dev, aml_name_decl("_ADR", aml_int(slot << 16)));
395 method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
396 aml_append(method,
397 aml_call2("PCEJ", aml_name("BSEL"), aml_name("_SUN"))
398 );
399 aml_append(dev, method);
400 method = aml_method("_DSM", 4, AML_SERIALIZED);
401 aml_append(method,
402 aml_return(aml_call6("PDSM", aml_arg(0), aml_arg(1),
403 aml_arg(2), aml_arg(3),
404 aml_name("BSEL"), aml_name("_SUN")))
405 );
406 aml_append(dev, method);
407 aml_append(parent_scope, dev);
408
409 build_append_pcihp_notify_entry(notify_method, slot);
410 }
411 continue;
412 }
413
414 pc = PCI_DEVICE_GET_CLASS(pdev);
415 dc = DEVICE_GET_CLASS(pdev);
416
417 /*
418 * Cold plugged bridges aren't themselves hot-pluggable.
419 * Hotplugged bridges *are* hot-pluggable.
420 */
421 cold_plugged_bridge = pc->is_bridge && !DEVICE(pdev)->hotplugged;
422 bridge_in_acpi = cold_plugged_bridge && pcihp_bridge_en;
423
424 hotplug_enabled_dev = bsel && dc->hotpluggable && !cold_plugged_bridge;
425
426 if (pc->class_id == PCI_CLASS_BRIDGE_ISA) {
427 continue;
428 }
429
430 /* start to compose PCI slot descriptor */
431 dev = aml_device("S%.02X", PCI_DEVFN(slot, 0));
432 aml_append(dev, aml_name_decl("_ADR", aml_int(slot << 16)));
433
434 if (bsel) {
435 aml_append(dev, aml_name_decl("_SUN", aml_int(slot)));
436 method = aml_method("_DSM", 4, AML_SERIALIZED);
437 aml_append(method, aml_return(
438 aml_call6("PDSM", aml_arg(0), aml_arg(1), aml_arg(2),
439 aml_arg(3), aml_name("BSEL"), aml_name("_SUN"))
440 ));
441 aml_append(dev, method);
442 }
443
444 if (pc->class_id == PCI_CLASS_DISPLAY_VGA) {
445 /* add VGA specific AML methods */
446 int s3d;
447
448 if (object_dynamic_cast(OBJECT(pdev), "qxl-vga")) {
449 s3d = 3;
450 } else {
451 s3d = 0;
452 }
453
454 method = aml_method("_S1D", 0, AML_NOTSERIALIZED);
455 aml_append(method, aml_return(aml_int(0)));
456 aml_append(dev, method);
457
458 method = aml_method("_S2D", 0, AML_NOTSERIALIZED);
459 aml_append(method, aml_return(aml_int(0)));
460 aml_append(dev, method);
461
462 method = aml_method("_S3D", 0, AML_NOTSERIALIZED);
463 aml_append(method, aml_return(aml_int(s3d)));
464 aml_append(dev, method);
465 } else if (hotplug_enabled_dev) {
466 /* add _EJ0 to make slot hotpluggable */
467 method = aml_method("_EJ0", 1, AML_NOTSERIALIZED);
468 aml_append(method,
469 aml_call2("PCEJ", aml_name("BSEL"), aml_name("_SUN"))
470 );
471 aml_append(dev, method);
472
473 if (bsel) {
474 build_append_pcihp_notify_entry(notify_method, slot);
475 }
476 } else if (bridge_in_acpi) {
477 /*
478 * device is coldplugged bridge,
479 * add child device descriptions into its scope
480 */
481 PCIBus *sec_bus = pci_bridge_get_sec_bus(PCI_BRIDGE(pdev));
482
483 build_append_pci_bus_devices(dev, sec_bus, pcihp_bridge_en);
484 }
485 /* slot descriptor has been composed, add it into parent context */
486 aml_append(parent_scope, dev);
487 }
488
489 if (bsel) {
490 aml_append(parent_scope, notify_method);
491 }
492
493 /* Append PCNT method to notify about events on local and child buses.
494 * Add this method for root bus only when hotplug is enabled since DSDT
495 * expects it.
496 */
497 if (bsel || pcihp_bridge_en) {
498 method = aml_method("PCNT", 0, AML_NOTSERIALIZED);
499
500 /* If bus supports hotplug select it and notify about local events */
501 if (bsel) {
502 uint64_t bsel_val = qnum_get_uint(qobject_to(QNum, bsel));
503
504 aml_append(method, aml_store(aml_int(bsel_val), aml_name("BNUM")));
505 aml_append(method, aml_call2("DVNT", aml_name("PCIU"),
506 aml_int(1))); /* Device Check */
507 aml_append(method, aml_call2("DVNT", aml_name("PCID"),
508 aml_int(3))); /* Eject Request */
509 }
510
511 /* Notify about child bus events in any case */
512 if (pcihp_bridge_en) {
513 QLIST_FOREACH(sec, &bus->child, sibling) {
514 int32_t devfn = sec->parent_dev->devfn;
515
516 if (pci_bus_is_root(sec) || pci_bus_is_express(sec)) {
517 continue;
518 }
519
520 aml_append(method, aml_name("^S%.02X.PCNT", devfn));
521 }
522 }
523
524 aml_append(parent_scope, method);
525 }
526 qobject_unref(bsel);
527 }
528
529 Aml *aml_pci_device_dsm(void)
530 {
531 Aml *method, *UUID, *ifctx, *ifctx1, *ifctx2, *ifctx3, *elsectx;
532 Aml *acpi_index = aml_local(0);
533 Aml *zero = aml_int(0);
534 Aml *bnum = aml_arg(4);
535 Aml *func = aml_arg(2);
536 Aml *rev = aml_arg(1);
537 Aml *sun = aml_arg(5);
538
539 method = aml_method("PDSM", 6, AML_SERIALIZED);
540
541 /*
542 * PCI Firmware Specification 3.1
543 * 4.6. _DSM Definitions for PCI
544 */
545 UUID = aml_touuid("E5C937D0-3553-4D7A-9117-EA4D19C3434D");
546 ifctx = aml_if(aml_equal(aml_arg(0), UUID));
547 {
548 aml_append(ifctx, aml_store(aml_call2("AIDX", bnum, sun), acpi_index));
549 ifctx1 = aml_if(aml_equal(func, zero));
550 {
551 uint8_t byte_list[1];
552
553 ifctx2 = aml_if(aml_equal(rev, aml_int(2)));
554 {
555 /*
556 * advertise function 7 if device has acpi-index
557 * acpi_index values:
558 * 0: not present (default value)
559 * FFFFFFFF: not supported (old QEMU without PIDX reg)
560 * other: device's acpi-index
561 */
562 ifctx3 = aml_if(aml_lnot(
563 aml_or(aml_equal(acpi_index, zero),
564 aml_equal(acpi_index, aml_int(0xFFFFFFFF)), NULL)
565 ));
566 {
567 byte_list[0] =
568 1 /* have supported functions */ |
569 1 << 7 /* support for function 7 */
570 ;
571 aml_append(ifctx3, aml_return(aml_buffer(1, byte_list)));
572 }
573 aml_append(ifctx2, ifctx3);
574 }
575 aml_append(ifctx1, ifctx2);
576
577 byte_list[0] = 0; /* nothing supported */
578 aml_append(ifctx1, aml_return(aml_buffer(1, byte_list)));
579 }
580 aml_append(ifctx, ifctx1);
581 elsectx = aml_else();
582 /*
583 * PCI Firmware Specification 3.1
584 * 4.6.7. _DSM for Naming a PCI or PCI Express Device Under
585 * Operating Systems
586 */
587 ifctx1 = aml_if(aml_equal(func, aml_int(7)));
588 {
589 Aml *pkg = aml_package(2);
590 Aml *ret = aml_local(1);
591
592 aml_append(pkg, zero);
593 /*
594 * optional, if not impl. should return null string
595 */
596 aml_append(pkg, aml_string("%s", ""));
597 aml_append(ifctx1, aml_store(pkg, ret));
598 /*
599 * update acpi-index to actual value
600 */
601 aml_append(ifctx1, aml_store(acpi_index, aml_index(ret, zero)));
602 aml_append(ifctx1, aml_return(ret));
603 }
604 aml_append(elsectx, ifctx1);
605 aml_append(ifctx, elsectx);
606 }
607 aml_append(method, ifctx);
608 return method;
609 }
610
611 /**
612 * build_prt_entry:
613 * @link_name: link name for PCI route entry
614 *
615 * build AML package containing a PCI route entry for @link_name
616 */
617 static Aml *build_prt_entry(const char *link_name)
618 {
619 Aml *a_zero = aml_int(0);
620 Aml *pkg = aml_package(4);
621 aml_append(pkg, a_zero);
622 aml_append(pkg, a_zero);
623 aml_append(pkg, aml_name("%s", link_name));
624 aml_append(pkg, a_zero);
625 return pkg;
626 }
627
628 /*
629 * initialize_route - Initialize the interrupt routing rule
630 * through a specific LINK:
631 * if (lnk_idx == idx)
632 * route using link 'link_name'
633 */
634 static Aml *initialize_route(Aml *route, const char *link_name,
635 Aml *lnk_idx, int idx)
636 {
637 Aml *if_ctx = aml_if(aml_equal(lnk_idx, aml_int(idx)));
638 Aml *pkg = build_prt_entry(link_name);
639
640 aml_append(if_ctx, aml_store(pkg, route));
641
642 return if_ctx;
643 }
644
645 /*
646 * build_prt - Define interrupt rounting rules
647 *
648 * Returns an array of 128 routes, one for each device,
649 * based on device location.
650 * The main goal is to equaly distribute the interrupts
651 * over the 4 existing ACPI links (works only for i440fx).
652 * The hash function is (slot + pin) & 3 -> "LNK[D|A|B|C]".
653 *
654 */
655 static Aml *build_prt(bool is_pci0_prt)
656 {
657 Aml *method, *while_ctx, *pin, *res;
658
659 method = aml_method("_PRT", 0, AML_NOTSERIALIZED);
660 res = aml_local(0);
661 pin = aml_local(1);
662 aml_append(method, aml_store(aml_package(128), res));
663 aml_append(method, aml_store(aml_int(0), pin));
664
665 /* while (pin < 128) */
666 while_ctx = aml_while(aml_lless(pin, aml_int(128)));
667 {
668 Aml *slot = aml_local(2);
669 Aml *lnk_idx = aml_local(3);
670 Aml *route = aml_local(4);
671
672 /* slot = pin >> 2 */
673 aml_append(while_ctx,
674 aml_store(aml_shiftright(pin, aml_int(2), NULL), slot));
675 /* lnk_idx = (slot + pin) & 3 */
676 aml_append(while_ctx,
677 aml_store(aml_and(aml_add(pin, slot, NULL), aml_int(3), NULL),
678 lnk_idx));
679
680 /* route[2] = "LNK[D|A|B|C]", selection based on pin % 3 */
681 aml_append(while_ctx, initialize_route(route, "LNKD", lnk_idx, 0));
682 if (is_pci0_prt) {
683 Aml *if_device_1, *if_pin_4, *else_pin_4;
684
685 /* device 1 is the power-management device, needs SCI */
686 if_device_1 = aml_if(aml_equal(lnk_idx, aml_int(1)));
687 {
688 if_pin_4 = aml_if(aml_equal(pin, aml_int(4)));
689 {
690 aml_append(if_pin_4,
691 aml_store(build_prt_entry("LNKS"), route));
692 }
693 aml_append(if_device_1, if_pin_4);
694 else_pin_4 = aml_else();
695 {
696 aml_append(else_pin_4,
697 aml_store(build_prt_entry("LNKA"), route));
698 }
699 aml_append(if_device_1, else_pin_4);
700 }
701 aml_append(while_ctx, if_device_1);
702 } else {
703 aml_append(while_ctx, initialize_route(route, "LNKA", lnk_idx, 1));
704 }
705 aml_append(while_ctx, initialize_route(route, "LNKB", lnk_idx, 2));
706 aml_append(while_ctx, initialize_route(route, "LNKC", lnk_idx, 3));
707
708 /* route[0] = 0x[slot]FFFF */
709 aml_append(while_ctx,
710 aml_store(aml_or(aml_shiftleft(slot, aml_int(16)), aml_int(0xFFFF),
711 NULL),
712 aml_index(route, aml_int(0))));
713 /* route[1] = pin & 3 */
714 aml_append(while_ctx,
715 aml_store(aml_and(pin, aml_int(3), NULL),
716 aml_index(route, aml_int(1))));
717 /* res[pin] = route */
718 aml_append(while_ctx, aml_store(route, aml_index(res, pin)));
719 /* pin++ */
720 aml_append(while_ctx, aml_increment(pin));
721 }
722 aml_append(method, while_ctx);
723 /* return res*/
724 aml_append(method, aml_return(res));
725
726 return method;
727 }
728
729 static void build_hpet_aml(Aml *table)
730 {
731 Aml *crs;
732 Aml *field;
733 Aml *method;
734 Aml *if_ctx;
735 Aml *scope = aml_scope("_SB");
736 Aml *dev = aml_device("HPET");
737 Aml *zero = aml_int(0);
738 Aml *id = aml_local(0);
739 Aml *period = aml_local(1);
740
741 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0103")));
742 aml_append(dev, aml_name_decl("_UID", zero));
743
744 aml_append(dev,
745 aml_operation_region("HPTM", AML_SYSTEM_MEMORY, aml_int(HPET_BASE),
746 HPET_LEN));
747 field = aml_field("HPTM", AML_DWORD_ACC, AML_LOCK, AML_PRESERVE);
748 aml_append(field, aml_named_field("VEND", 32));
749 aml_append(field, aml_named_field("PRD", 32));
750 aml_append(dev, field);
751
752 method = aml_method("_STA", 0, AML_NOTSERIALIZED);
753 aml_append(method, aml_store(aml_name("VEND"), id));
754 aml_append(method, aml_store(aml_name("PRD"), period));
755 aml_append(method, aml_shiftright(id, aml_int(16), id));
756 if_ctx = aml_if(aml_lor(aml_equal(id, zero),
757 aml_equal(id, aml_int(0xffff))));
758 {
759 aml_append(if_ctx, aml_return(zero));
760 }
761 aml_append(method, if_ctx);
762
763 if_ctx = aml_if(aml_lor(aml_equal(period, zero),
764 aml_lgreater(period, aml_int(100000000))));
765 {
766 aml_append(if_ctx, aml_return(zero));
767 }
768 aml_append(method, if_ctx);
769
770 aml_append(method, aml_return(aml_int(0x0F)));
771 aml_append(dev, method);
772
773 crs = aml_resource_template();
774 aml_append(crs, aml_memory32_fixed(HPET_BASE, HPET_LEN, AML_READ_ONLY));
775 aml_append(dev, aml_name_decl("_CRS", crs));
776
777 aml_append(scope, dev);
778 aml_append(table, scope);
779 }
780
781 static Aml *build_vmbus_device_aml(VMBusBridge *vmbus_bridge)
782 {
783 Aml *dev;
784 Aml *method;
785 Aml *crs;
786
787 dev = aml_device("VMBS");
788 aml_append(dev, aml_name_decl("STA", aml_int(0xF)));
789 aml_append(dev, aml_name_decl("_HID", aml_string("VMBus")));
790 aml_append(dev, aml_name_decl("_UID", aml_int(0x0)));
791 aml_append(dev, aml_name_decl("_DDN", aml_string("VMBUS")));
792
793 method = aml_method("_DIS", 0, AML_NOTSERIALIZED);
794 aml_append(method, aml_store(aml_and(aml_name("STA"), aml_int(0xD), NULL),
795 aml_name("STA")));
796 aml_append(dev, method);
797
798 method = aml_method("_PS0", 0, AML_NOTSERIALIZED);
799 aml_append(method, aml_store(aml_or(aml_name("STA"), aml_int(0xF), NULL),
800 aml_name("STA")));
801 aml_append(dev, method);
802
803 method = aml_method("_STA", 0, AML_NOTSERIALIZED);
804 aml_append(method, aml_return(aml_name("STA")));
805 aml_append(dev, method);
806
807 aml_append(dev, aml_name_decl("_PS3", aml_int(0x0)));
808
809 crs = aml_resource_template();
810 aml_append(crs, aml_irq_no_flags(vmbus_bridge->irq));
811 aml_append(dev, aml_name_decl("_CRS", crs));
812
813 return dev;
814 }
815
816 static void build_isa_devices_aml(Aml *table)
817 {
818 bool ambiguous;
819 Object *obj = object_resolve_path_type("", TYPE_ISA_BUS, &ambiguous);
820 Aml *scope;
821
822 assert(obj && !ambiguous);
823
824 scope = aml_scope("_SB.PCI0.ISA");
825 build_acpi_ipmi_devices(scope, BUS(obj), "\\_SB.PCI0.ISA");
826 isa_build_aml(ISA_BUS(obj), scope);
827
828 aml_append(table, scope);
829 }
830
831 static void build_dbg_aml(Aml *table)
832 {
833 Aml *field;
834 Aml *method;
835 Aml *while_ctx;
836 Aml *scope = aml_scope("\\");
837 Aml *buf = aml_local(0);
838 Aml *len = aml_local(1);
839 Aml *idx = aml_local(2);
840
841 aml_append(scope,
842 aml_operation_region("DBG", AML_SYSTEM_IO, aml_int(0x0402), 0x01));
843 field = aml_field("DBG", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
844 aml_append(field, aml_named_field("DBGB", 8));
845 aml_append(scope, field);
846
847 method = aml_method("DBUG", 1, AML_NOTSERIALIZED);
848
849 aml_append(method, aml_to_hexstring(aml_arg(0), buf));
850 aml_append(method, aml_to_buffer(buf, buf));
851 aml_append(method, aml_subtract(aml_sizeof(buf), aml_int(1), len));
852 aml_append(method, aml_store(aml_int(0), idx));
853
854 while_ctx = aml_while(aml_lless(idx, len));
855 aml_append(while_ctx,
856 aml_store(aml_derefof(aml_index(buf, idx)), aml_name("DBGB")));
857 aml_append(while_ctx, aml_increment(idx));
858 aml_append(method, while_ctx);
859
860 aml_append(method, aml_store(aml_int(0x0A), aml_name("DBGB")));
861 aml_append(scope, method);
862
863 aml_append(table, scope);
864 }
865
866 static Aml *build_link_dev(const char *name, uint8_t uid, Aml *reg)
867 {
868 Aml *dev;
869 Aml *crs;
870 Aml *method;
871 uint32_t irqs[] = {5, 10, 11};
872
873 dev = aml_device("%s", name);
874 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C0F")));
875 aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
876
877 crs = aml_resource_template();
878 aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH,
879 AML_SHARED, irqs, ARRAY_SIZE(irqs)));
880 aml_append(dev, aml_name_decl("_PRS", crs));
881
882 method = aml_method("_STA", 0, AML_NOTSERIALIZED);
883 aml_append(method, aml_return(aml_call1("IQST", reg)));
884 aml_append(dev, method);
885
886 method = aml_method("_DIS", 0, AML_NOTSERIALIZED);
887 aml_append(method, aml_or(reg, aml_int(0x80), reg));
888 aml_append(dev, method);
889
890 method = aml_method("_CRS", 0, AML_NOTSERIALIZED);
891 aml_append(method, aml_return(aml_call1("IQCR", reg)));
892 aml_append(dev, method);
893
894 method = aml_method("_SRS", 1, AML_NOTSERIALIZED);
895 aml_append(method, aml_create_dword_field(aml_arg(0), aml_int(5), "PRRI"));
896 aml_append(method, aml_store(aml_name("PRRI"), reg));
897 aml_append(dev, method);
898
899 return dev;
900 }
901
902 static Aml *build_gsi_link_dev(const char *name, uint8_t uid, uint8_t gsi)
903 {
904 Aml *dev;
905 Aml *crs;
906 Aml *method;
907 uint32_t irqs;
908
909 dev = aml_device("%s", name);
910 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C0F")));
911 aml_append(dev, aml_name_decl("_UID", aml_int(uid)));
912
913 crs = aml_resource_template();
914 irqs = gsi;
915 aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL, AML_ACTIVE_HIGH,
916 AML_SHARED, &irqs, 1));
917 aml_append(dev, aml_name_decl("_PRS", crs));
918
919 aml_append(dev, aml_name_decl("_CRS", crs));
920
921 /*
922 * _DIS can be no-op because the interrupt cannot be disabled.
923 */
924 method = aml_method("_DIS", 0, AML_NOTSERIALIZED);
925 aml_append(dev, method);
926
927 method = aml_method("_SRS", 1, AML_NOTSERIALIZED);
928 aml_append(dev, method);
929
930 return dev;
931 }
932
933 /* _CRS method - get current settings */
934 static Aml *build_iqcr_method(bool is_piix4)
935 {
936 Aml *if_ctx;
937 uint32_t irqs;
938 Aml *method = aml_method("IQCR", 1, AML_SERIALIZED);
939 Aml *crs = aml_resource_template();
940
941 irqs = 0;
942 aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL,
943 AML_ACTIVE_HIGH, AML_SHARED, &irqs, 1));
944 aml_append(method, aml_name_decl("PRR0", crs));
945
946 aml_append(method,
947 aml_create_dword_field(aml_name("PRR0"), aml_int(5), "PRRI"));
948
949 if (is_piix4) {
950 if_ctx = aml_if(aml_lless(aml_arg(0), aml_int(0x80)));
951 aml_append(if_ctx, aml_store(aml_arg(0), aml_name("PRRI")));
952 aml_append(method, if_ctx);
953 } else {
954 aml_append(method,
955 aml_store(aml_and(aml_arg(0), aml_int(0xF), NULL),
956 aml_name("PRRI")));
957 }
958
959 aml_append(method, aml_return(aml_name("PRR0")));
960 return method;
961 }
962
963 /* _STA method - get status */
964 static Aml *build_irq_status_method(void)
965 {
966 Aml *if_ctx;
967 Aml *method = aml_method("IQST", 1, AML_NOTSERIALIZED);
968
969 if_ctx = aml_if(aml_and(aml_int(0x80), aml_arg(0), NULL));
970 aml_append(if_ctx, aml_return(aml_int(0x09)));
971 aml_append(method, if_ctx);
972 aml_append(method, aml_return(aml_int(0x0B)));
973 return method;
974 }
975
976 static void build_piix4_pci0_int(Aml *table)
977 {
978 Aml *dev;
979 Aml *crs;
980 Aml *field;
981 Aml *method;
982 uint32_t irqs;
983 Aml *sb_scope = aml_scope("_SB");
984 Aml *pci0_scope = aml_scope("PCI0");
985
986 aml_append(pci0_scope, build_prt(true));
987 aml_append(sb_scope, pci0_scope);
988
989 field = aml_field("PCI0.ISA.P40C", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
990 aml_append(field, aml_named_field("PRQ0", 8));
991 aml_append(field, aml_named_field("PRQ1", 8));
992 aml_append(field, aml_named_field("PRQ2", 8));
993 aml_append(field, aml_named_field("PRQ3", 8));
994 aml_append(sb_scope, field);
995
996 aml_append(sb_scope, build_irq_status_method());
997 aml_append(sb_scope, build_iqcr_method(true));
998
999 aml_append(sb_scope, build_link_dev("LNKA", 0, aml_name("PRQ0")));
1000 aml_append(sb_scope, build_link_dev("LNKB", 1, aml_name("PRQ1")));
1001 aml_append(sb_scope, build_link_dev("LNKC", 2, aml_name("PRQ2")));
1002 aml_append(sb_scope, build_link_dev("LNKD", 3, aml_name("PRQ3")));
1003
1004 dev = aml_device("LNKS");
1005 {
1006 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0C0F")));
1007 aml_append(dev, aml_name_decl("_UID", aml_int(4)));
1008
1009 crs = aml_resource_template();
1010 irqs = 9;
1011 aml_append(crs, aml_interrupt(AML_CONSUMER, AML_LEVEL,
1012 AML_ACTIVE_HIGH, AML_SHARED,
1013 &irqs, 1));
1014 aml_append(dev, aml_name_decl("_PRS", crs));
1015
1016 /* The SCI cannot be disabled and is always attached to GSI 9,
1017 * so these are no-ops. We only need this link to override the
1018 * polarity to active high and match the content of the MADT.
1019 */
1020 method = aml_method("_STA", 0, AML_NOTSERIALIZED);
1021 aml_append(method, aml_return(aml_int(0x0b)));
1022 aml_append(dev, method);
1023
1024 method = aml_method("_DIS", 0, AML_NOTSERIALIZED);
1025 aml_append(dev, method);
1026
1027 method = aml_method("_CRS", 0, AML_NOTSERIALIZED);
1028 aml_append(method, aml_return(aml_name("_PRS")));
1029 aml_append(dev, method);
1030
1031 method = aml_method("_SRS", 1, AML_NOTSERIALIZED);
1032 aml_append(dev, method);
1033 }
1034 aml_append(sb_scope, dev);
1035
1036 aml_append(table, sb_scope);
1037 }
1038
1039 static void append_q35_prt_entry(Aml *ctx, uint32_t nr, const char *name)
1040 {
1041 int i;
1042 int head;
1043 Aml *pkg;
1044 char base = name[3] < 'E' ? 'A' : 'E';
1045 char *s = g_strdup(name);
1046 Aml *a_nr = aml_int((nr << 16) | 0xffff);
1047
1048 assert(strlen(s) == 4);
1049
1050 head = name[3] - base;
1051 for (i = 0; i < 4; i++) {
1052 if (head + i > 3) {
1053 head = i * -1;
1054 }
1055 s[3] = base + head + i;
1056 pkg = aml_package(4);
1057 aml_append(pkg, a_nr);
1058 aml_append(pkg, aml_int(i));
1059 aml_append(pkg, aml_name("%s", s));
1060 aml_append(pkg, aml_int(0));
1061 aml_append(ctx, pkg);
1062 }
1063 g_free(s);
1064 }
1065
1066 static Aml *build_q35_routing_table(const char *str)
1067 {
1068 int i;
1069 Aml *pkg;
1070 char *name = g_strdup_printf("%s ", str);
1071
1072 pkg = aml_package(128);
1073 for (i = 0; i < 0x18; i++) {
1074 name[3] = 'E' + (i & 0x3);
1075 append_q35_prt_entry(pkg, i, name);
1076 }
1077
1078 name[3] = 'E';
1079 append_q35_prt_entry(pkg, 0x18, name);
1080
1081 /* INTA -> PIRQA for slot 25 - 31, see the default value of D<N>IR */
1082 for (i = 0x0019; i < 0x1e; i++) {
1083 name[3] = 'A';
1084 append_q35_prt_entry(pkg, i, name);
1085 }
1086
1087 /* PCIe->PCI bridge. use PIRQ[E-H] */
1088 name[3] = 'E';
1089 append_q35_prt_entry(pkg, 0x1e, name);
1090 name[3] = 'A';
1091 append_q35_prt_entry(pkg, 0x1f, name);
1092
1093 g_free(name);
1094 return pkg;
1095 }
1096
1097 static void build_q35_pci0_int(Aml *table)
1098 {
1099 Aml *field;
1100 Aml *method;
1101 Aml *sb_scope = aml_scope("_SB");
1102 Aml *pci0_scope = aml_scope("PCI0");
1103
1104 /* Zero => PIC mode, One => APIC Mode */
1105 aml_append(table, aml_name_decl("PICF", aml_int(0)));
1106 method = aml_method("_PIC", 1, AML_NOTSERIALIZED);
1107 {
1108 aml_append(method, aml_store(aml_arg(0), aml_name("PICF")));
1109 }
1110 aml_append(table, method);
1111
1112 aml_append(pci0_scope,
1113 aml_name_decl("PRTP", build_q35_routing_table("LNK")));
1114 aml_append(pci0_scope,
1115 aml_name_decl("PRTA", build_q35_routing_table("GSI")));
1116
1117 method = aml_method("_PRT", 0, AML_NOTSERIALIZED);
1118 {
1119 Aml *if_ctx;
1120 Aml *else_ctx;
1121
1122 /* PCI IRQ routing table, example from ACPI 2.0a specification,
1123 section 6.2.8.1 */
1124 /* Note: we provide the same info as the PCI routing
1125 table of the Bochs BIOS */
1126 if_ctx = aml_if(aml_equal(aml_name("PICF"), aml_int(0)));
1127 aml_append(if_ctx, aml_return(aml_name("PRTP")));
1128 aml_append(method, if_ctx);
1129 else_ctx = aml_else();
1130 aml_append(else_ctx, aml_return(aml_name("PRTA")));
1131 aml_append(method, else_ctx);
1132 }
1133 aml_append(pci0_scope, method);
1134 aml_append(sb_scope, pci0_scope);
1135
1136 field = aml_field("PCI0.ISA.PIRQ", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
1137 aml_append(field, aml_named_field("PRQA", 8));
1138 aml_append(field, aml_named_field("PRQB", 8));
1139 aml_append(field, aml_named_field("PRQC", 8));
1140 aml_append(field, aml_named_field("PRQD", 8));
1141 aml_append(field, aml_reserved_field(0x20));
1142 aml_append(field, aml_named_field("PRQE", 8));
1143 aml_append(field, aml_named_field("PRQF", 8));
1144 aml_append(field, aml_named_field("PRQG", 8));
1145 aml_append(field, aml_named_field("PRQH", 8));
1146 aml_append(sb_scope, field);
1147
1148 aml_append(sb_scope, build_irq_status_method());
1149 aml_append(sb_scope, build_iqcr_method(false));
1150
1151 aml_append(sb_scope, build_link_dev("LNKA", 0, aml_name("PRQA")));
1152 aml_append(sb_scope, build_link_dev("LNKB", 1, aml_name("PRQB")));
1153 aml_append(sb_scope, build_link_dev("LNKC", 2, aml_name("PRQC")));
1154 aml_append(sb_scope, build_link_dev("LNKD", 3, aml_name("PRQD")));
1155 aml_append(sb_scope, build_link_dev("LNKE", 4, aml_name("PRQE")));
1156 aml_append(sb_scope, build_link_dev("LNKF", 5, aml_name("PRQF")));
1157 aml_append(sb_scope, build_link_dev("LNKG", 6, aml_name("PRQG")));
1158 aml_append(sb_scope, build_link_dev("LNKH", 7, aml_name("PRQH")));
1159
1160 aml_append(sb_scope, build_gsi_link_dev("GSIA", 0x10, 0x10));
1161 aml_append(sb_scope, build_gsi_link_dev("GSIB", 0x11, 0x11));
1162 aml_append(sb_scope, build_gsi_link_dev("GSIC", 0x12, 0x12));
1163 aml_append(sb_scope, build_gsi_link_dev("GSID", 0x13, 0x13));
1164 aml_append(sb_scope, build_gsi_link_dev("GSIE", 0x14, 0x14));
1165 aml_append(sb_scope, build_gsi_link_dev("GSIF", 0x15, 0x15));
1166 aml_append(sb_scope, build_gsi_link_dev("GSIG", 0x16, 0x16));
1167 aml_append(sb_scope, build_gsi_link_dev("GSIH", 0x17, 0x17));
1168
1169 aml_append(table, sb_scope);
1170 }
1171
1172 static Aml *build_q35_dram_controller(const AcpiMcfgInfo *mcfg)
1173 {
1174 Aml *dev;
1175 Aml *resource_template;
1176
1177 /* DRAM controller */
1178 dev = aml_device("DRAC");
1179 aml_append(dev, aml_name_decl("_HID", aml_string("PNP0C01")));
1180
1181 resource_template = aml_resource_template();
1182 if (mcfg->base + mcfg->size - 1 >= (1ULL << 32)) {
1183 aml_append(resource_template,
1184 aml_qword_memory(AML_POS_DECODE,
1185 AML_MIN_FIXED,
1186 AML_MAX_FIXED,
1187 AML_NON_CACHEABLE,
1188 AML_READ_WRITE,
1189 0x0000000000000000,
1190 mcfg->base,
1191 mcfg->base + mcfg->size - 1,
1192 0x0000000000000000,
1193 mcfg->size));
1194 } else {
1195 aml_append(resource_template,
1196 aml_dword_memory(AML_POS_DECODE,
1197 AML_MIN_FIXED,
1198 AML_MAX_FIXED,
1199 AML_NON_CACHEABLE,
1200 AML_READ_WRITE,
1201 0x0000000000000000,
1202 mcfg->base,
1203 mcfg->base + mcfg->size - 1,
1204 0x0000000000000000,
1205 mcfg->size));
1206 }
1207 aml_append(dev, aml_name_decl("_CRS", resource_template));
1208
1209 return dev;
1210 }
1211
1212 static void build_q35_isa_bridge(Aml *table)
1213 {
1214 Aml *dev;
1215 Aml *scope;
1216
1217 scope = aml_scope("_SB.PCI0");
1218 dev = aml_device("ISA");
1219 aml_append(dev, aml_name_decl("_ADR", aml_int(0x001F0000)));
1220
1221 /* ICH9 PCI to ISA irq remapping */
1222 aml_append(dev, aml_operation_region("PIRQ", AML_PCI_CONFIG,
1223 aml_int(0x60), 0x0C));
1224
1225 aml_append(scope, dev);
1226 aml_append(table, scope);
1227 }
1228
1229 static void build_piix4_isa_bridge(Aml *table)
1230 {
1231 Aml *dev;
1232 Aml *scope;
1233
1234 scope = aml_scope("_SB.PCI0");
1235 dev = aml_device("ISA");
1236 aml_append(dev, aml_name_decl("_ADR", aml_int(0x00010000)));
1237
1238 /* PIIX PCI to ISA irq remapping */
1239 aml_append(dev, aml_operation_region("P40C", AML_PCI_CONFIG,
1240 aml_int(0x60), 0x04));
1241
1242 aml_append(scope, dev);
1243 aml_append(table, scope);
1244 }
1245
1246 static void build_piix4_pci_hotplug(Aml *table)
1247 {
1248 Aml *scope;
1249 Aml *field;
1250 Aml *method;
1251
1252 scope = aml_scope("_SB.PCI0");
1253
1254 aml_append(scope,
1255 aml_operation_region("PCST", AML_SYSTEM_IO, aml_int(0xae00), 0x08));
1256 field = aml_field("PCST", AML_DWORD_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS);
1257 aml_append(field, aml_named_field("PCIU", 32));
1258 aml_append(field, aml_named_field("PCID", 32));
1259 aml_append(scope, field);
1260
1261 aml_append(scope,
1262 aml_operation_region("SEJ", AML_SYSTEM_IO, aml_int(0xae08), 0x04));
1263 field = aml_field("SEJ", AML_DWORD_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS);
1264 aml_append(field, aml_named_field("B0EJ", 32));
1265 aml_append(scope, field);
1266
1267 aml_append(scope,
1268 aml_operation_region("BNMR", AML_SYSTEM_IO, aml_int(0xae10), 0x08));
1269 field = aml_field("BNMR", AML_DWORD_ACC, AML_NOLOCK, AML_WRITE_AS_ZEROS);
1270 aml_append(field, aml_named_field("BNUM", 32));
1271 aml_append(field, aml_named_field("PIDX", 32));
1272 aml_append(scope, field);
1273
1274 aml_append(scope, aml_mutex("BLCK", 0));
1275
1276 method = aml_method("PCEJ", 2, AML_NOTSERIALIZED);
1277 aml_append(method, aml_acquire(aml_name("BLCK"), 0xFFFF));
1278 aml_append(method, aml_store(aml_arg(0), aml_name("BNUM")));
1279 aml_append(method,
1280 aml_store(aml_shiftleft(aml_int(1), aml_arg(1)), aml_name("B0EJ")));
1281 aml_append(method, aml_release(aml_name("BLCK")));
1282 aml_append(method, aml_return(aml_int(0)));
1283 aml_append(scope, method);
1284
1285 method = aml_method("AIDX", 2, AML_NOTSERIALIZED);
1286 aml_append(method, aml_acquire(aml_name("BLCK"), 0xFFFF));
1287 aml_append(method, aml_store(aml_arg(0), aml_name("BNUM")));
1288 aml_append(method,
1289 aml_store(aml_shiftleft(aml_int(1), aml_arg(1)), aml_name("PIDX")));
1290 aml_append(method, aml_store(aml_name("PIDX"), aml_local(0)));
1291 aml_append(method, aml_release(aml_name("BLCK")));
1292 aml_append(method, aml_return(aml_local(0)));
1293 aml_append(scope, method);
1294
1295 aml_append(scope, aml_pci_device_dsm());
1296
1297 aml_append(table, scope);
1298 }
1299
1300 static Aml *build_q35_osc_method(void)
1301 {
1302 Aml *if_ctx;
1303 Aml *if_ctx2;
1304 Aml *else_ctx;
1305 Aml *method;
1306 Aml *a_cwd1 = aml_name("CDW1");
1307 Aml *a_ctrl = aml_local(0);
1308
1309 method = aml_method("_OSC", 4, AML_NOTSERIALIZED);
1310 aml_append(method, aml_create_dword_field(aml_arg(3), aml_int(0), "CDW1"));
1311
1312 if_ctx = aml_if(aml_equal(
1313 aml_arg(0), aml_touuid("33DB4D5B-1FF7-401C-9657-7441C03DD766")));
1314 aml_append(if_ctx, aml_create_dword_field(aml_arg(3), aml_int(4), "CDW2"));
1315 aml_append(if_ctx, aml_create_dword_field(aml_arg(3), aml_int(8), "CDW3"));
1316
1317 aml_append(if_ctx, aml_store(aml_name("CDW3"), a_ctrl));
1318
1319 /*
1320 * Always allow native PME, AER (no dependencies)
1321 * Allow SHPC (PCI bridges can have SHPC controller)
1322 */
1323 aml_append(if_ctx, aml_and(a_ctrl, aml_int(0x1F), a_ctrl));
1324
1325 if_ctx2 = aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(1))));
1326 /* Unknown revision */
1327 aml_append(if_ctx2, aml_or(a_cwd1, aml_int(0x08), a_cwd1));
1328 aml_append(if_ctx, if_ctx2);
1329
1330 if_ctx2 = aml_if(aml_lnot(aml_equal(aml_name("CDW3"), a_ctrl)));
1331 /* Capabilities bits were masked */
1332 aml_append(if_ctx2, aml_or(a_cwd1, aml_int(0x10), a_cwd1));
1333 aml_append(if_ctx, if_ctx2);
1334
1335 /* Update DWORD3 in the buffer */
1336 aml_append(if_ctx, aml_store(a_ctrl, aml_name("CDW3")));
1337 aml_append(method, if_ctx);
1338
1339 else_ctx = aml_else();
1340 /* Unrecognized UUID */
1341 aml_append(else_ctx, aml_or(a_cwd1, aml_int(4), a_cwd1));
1342 aml_append(method, else_ctx);
1343
1344 aml_append(method, aml_return(aml_arg(3)));
1345 return method;
1346 }
1347
1348 static void build_smb0(Aml *table, I2CBus *smbus, int devnr, int func)
1349 {
1350 Aml *scope = aml_scope("_SB.PCI0");
1351 Aml *dev = aml_device("SMB0");
1352
1353 aml_append(dev, aml_name_decl("_ADR", aml_int(devnr << 16 | func)));
1354 build_acpi_ipmi_devices(dev, BUS(smbus), "\\_SB.PCI0.SMB0");
1355 aml_append(scope, dev);
1356 aml_append(table, scope);
1357 }
1358
1359 static void
1360 build_dsdt(GArray *table_data, BIOSLinker *linker,
1361 AcpiPmInfo *pm, AcpiMiscInfo *misc,
1362 Range *pci_hole, Range *pci_hole64, MachineState *machine)
1363 {
1364 CrsRangeEntry *entry;
1365 Aml *dsdt, *sb_scope, *scope, *dev, *method, *field, *pkg, *crs;
1366 CrsRangeSet crs_range_set;
1367 PCMachineState *pcms = PC_MACHINE(machine);
1368 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(machine);
1369 X86MachineState *x86ms = X86_MACHINE(machine);
1370 AcpiMcfgInfo mcfg;
1371 bool mcfg_valid = !!acpi_get_mcfg(&mcfg);
1372 uint32_t nr_mem = machine->ram_slots;
1373 int root_bus_limit = 0xFF;
1374 PCIBus *bus = NULL;
1375 TPMIf *tpm = tpm_find();
1376 int i;
1377 VMBusBridge *vmbus_bridge = vmbus_bridge_find();
1378
1379 dsdt = init_aml_allocator();
1380
1381 /* Reserve space for header */
1382 acpi_data_push(dsdt->buf, sizeof(AcpiTableHeader));
1383
1384 build_dbg_aml(dsdt);
1385 if (misc->is_piix4) {
1386 sb_scope = aml_scope("_SB");
1387 dev = aml_device("PCI0");
1388 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
1389 aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
1390 aml_append(dev, aml_name_decl("_UID", aml_int(pcmc->pci_root_uid)));
1391 aml_append(sb_scope, dev);
1392 aml_append(dsdt, sb_scope);
1393
1394 if (misc->has_hpet) {
1395 build_hpet_aml(dsdt);
1396 }
1397 build_piix4_isa_bridge(dsdt);
1398 build_isa_devices_aml(dsdt);
1399 if (pm->pcihp_bridge_en || pm->pcihp_root_en) {
1400 build_piix4_pci_hotplug(dsdt);
1401 }
1402 build_piix4_pci0_int(dsdt);
1403 } else {
1404 sb_scope = aml_scope("_SB");
1405 dev = aml_device("PCI0");
1406 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
1407 aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
1408 aml_append(dev, aml_name_decl("_ADR", aml_int(0)));
1409 aml_append(dev, aml_name_decl("_UID", aml_int(pcmc->pci_root_uid)));
1410 aml_append(dev, build_q35_osc_method());
1411 aml_append(sb_scope, dev);
1412 if (mcfg_valid) {
1413 aml_append(sb_scope, build_q35_dram_controller(&mcfg));
1414 }
1415
1416 if (pm->smi_on_cpuhp) {
1417 /* reserve SMI block resources, IO ports 0xB2, 0xB3 */
1418 dev = aml_device("PCI0.SMI0");
1419 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A06")));
1420 aml_append(dev, aml_name_decl("_UID", aml_string("SMI resources")));
1421 crs = aml_resource_template();
1422 aml_append(crs,
1423 aml_io(
1424 AML_DECODE16,
1425 ACPI_PORT_SMI_CMD,
1426 ACPI_PORT_SMI_CMD,
1427 1,
1428 2)
1429 );
1430 aml_append(dev, aml_name_decl("_CRS", crs));
1431 aml_append(dev, aml_operation_region("SMIR", AML_SYSTEM_IO,
1432 aml_int(ACPI_PORT_SMI_CMD), 2));
1433 field = aml_field("SMIR", AML_BYTE_ACC, AML_NOLOCK,
1434 AML_WRITE_AS_ZEROS);
1435 aml_append(field, aml_named_field("SMIC", 8));
1436 aml_append(field, aml_reserved_field(8));
1437 aml_append(dev, field);
1438 aml_append(sb_scope, dev);
1439 }
1440
1441 aml_append(dsdt, sb_scope);
1442
1443 if (misc->has_hpet) {
1444 build_hpet_aml(dsdt);
1445 }
1446 build_q35_isa_bridge(dsdt);
1447 build_isa_devices_aml(dsdt);
1448 build_q35_pci0_int(dsdt);
1449 if (pcms->smbus && !pcmc->do_not_add_smb_acpi) {
1450 build_smb0(dsdt, pcms->smbus, ICH9_SMB_DEV, ICH9_SMB_FUNC);
1451 }
1452 }
1453
1454 if (vmbus_bridge) {
1455 sb_scope = aml_scope("_SB");
1456 aml_append(sb_scope, build_vmbus_device_aml(vmbus_bridge));
1457 aml_append(dsdt, sb_scope);
1458 }
1459
1460 if (pcmc->legacy_cpu_hotplug) {
1461 build_legacy_cpu_hotplug_aml(dsdt, machine, pm->cpu_hp_io_base);
1462 } else {
1463 CPUHotplugFeatures opts = {
1464 .acpi_1_compatible = true, .has_legacy_cphp = true,
1465 .smi_path = pm->smi_on_cpuhp ? "\\_SB.PCI0.SMI0.SMIC" : NULL,
1466 .fw_unplugs_cpu = pm->smi_on_cpu_unplug,
1467 };
1468 build_cpus_aml(dsdt, machine, opts, pm->cpu_hp_io_base,
1469 "\\_SB.PCI0", "\\_GPE._E02");
1470 }
1471
1472 if (pcms->memhp_io_base && nr_mem) {
1473 build_memory_hotplug_aml(dsdt, nr_mem, "\\_SB.PCI0",
1474 "\\_GPE._E03", AML_SYSTEM_IO,
1475 pcms->memhp_io_base);
1476 }
1477
1478 scope = aml_scope("_GPE");
1479 {
1480 aml_append(scope, aml_name_decl("_HID", aml_string("ACPI0006")));
1481
1482 if (misc->is_piix4 && (pm->pcihp_bridge_en || pm->pcihp_root_en)) {
1483 method = aml_method("_E01", 0, AML_NOTSERIALIZED);
1484 aml_append(method,
1485 aml_acquire(aml_name("\\_SB.PCI0.BLCK"), 0xFFFF));
1486 aml_append(method, aml_call0("\\_SB.PCI0.PCNT"));
1487 aml_append(method, aml_release(aml_name("\\_SB.PCI0.BLCK")));
1488 aml_append(scope, method);
1489 }
1490
1491 if (machine->nvdimms_state->is_enabled) {
1492 method = aml_method("_E04", 0, AML_NOTSERIALIZED);
1493 aml_append(method, aml_notify(aml_name("\\_SB.NVDR"),
1494 aml_int(0x80)));
1495 aml_append(scope, method);
1496 }
1497 }
1498 aml_append(dsdt, scope);
1499
1500 crs_range_set_init(&crs_range_set);
1501 bus = PC_MACHINE(machine)->bus;
1502 if (bus) {
1503 QLIST_FOREACH(bus, &bus->child, sibling) {
1504 uint8_t bus_num = pci_bus_num(bus);
1505 uint8_t numa_node = pci_bus_numa_node(bus);
1506
1507 /* look only for expander root buses */
1508 if (!pci_bus_is_root(bus)) {
1509 continue;
1510 }
1511
1512 if (bus_num < root_bus_limit) {
1513 root_bus_limit = bus_num - 1;
1514 }
1515
1516 scope = aml_scope("\\_SB");
1517 dev = aml_device("PC%.02X", bus_num);
1518 aml_append(dev, aml_name_decl("_UID", aml_int(bus_num)));
1519 aml_append(dev, aml_name_decl("_BBN", aml_int(bus_num)));
1520 if (pci_bus_is_express(bus)) {
1521 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
1522 aml_append(dev, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
1523 aml_append(dev, build_q35_osc_method());
1524 } else {
1525 aml_append(dev, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
1526 }
1527
1528 if (numa_node != NUMA_NODE_UNASSIGNED) {
1529 aml_append(dev, aml_name_decl("_PXM", aml_int(numa_node)));
1530 }
1531
1532 aml_append(dev, build_prt(false));
1533 crs = build_crs(PCI_HOST_BRIDGE(BUS(bus)->parent), &crs_range_set,
1534 0, 0, 0, 0);
1535 aml_append(dev, aml_name_decl("_CRS", crs));
1536 aml_append(scope, dev);
1537 aml_append(dsdt, scope);
1538 }
1539 }
1540
1541 /*
1542 * At this point crs_range_set has all the ranges used by pci
1543 * busses *other* than PCI0. These ranges will be excluded from
1544 * the PCI0._CRS. Add mmconfig to the set so it will be excluded
1545 * too.
1546 */
1547 if (mcfg_valid) {
1548 crs_range_insert(crs_range_set.mem_ranges,
1549 mcfg.base, mcfg.base + mcfg.size - 1);
1550 }
1551
1552 scope = aml_scope("\\_SB.PCI0");
1553 /* build PCI0._CRS */
1554 crs = aml_resource_template();
1555 aml_append(crs,
1556 aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE,
1557 0x0000, 0x0, root_bus_limit,
1558 0x0000, root_bus_limit + 1));
1559 aml_append(crs, aml_io(AML_DECODE16, 0x0CF8, 0x0CF8, 0x01, 0x08));
1560
1561 aml_append(crs,
1562 aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,
1563 AML_POS_DECODE, AML_ENTIRE_RANGE,
1564 0x0000, 0x0000, 0x0CF7, 0x0000, 0x0CF8));
1565
1566 crs_replace_with_free_ranges(crs_range_set.io_ranges, 0x0D00, 0xFFFF);
1567 for (i = 0; i < crs_range_set.io_ranges->len; i++) {
1568 entry = g_ptr_array_index(crs_range_set.io_ranges, i);
1569 aml_append(crs,
1570 aml_word_io(AML_MIN_FIXED, AML_MAX_FIXED,
1571 AML_POS_DECODE, AML_ENTIRE_RANGE,
1572 0x0000, entry->base, entry->limit,
1573 0x0000, entry->limit - entry->base + 1));
1574 }
1575
1576 aml_append(crs,
1577 aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,
1578 AML_CACHEABLE, AML_READ_WRITE,
1579 0, 0x000A0000, 0x000BFFFF, 0, 0x00020000));
1580
1581 crs_replace_with_free_ranges(crs_range_set.mem_ranges,
1582 range_lob(pci_hole),
1583 range_upb(pci_hole));
1584 for (i = 0; i < crs_range_set.mem_ranges->len; i++) {
1585 entry = g_ptr_array_index(crs_range_set.mem_ranges, i);
1586 aml_append(crs,
1587 aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED, AML_MAX_FIXED,
1588 AML_NON_CACHEABLE, AML_READ_WRITE,
1589 0, entry->base, entry->limit,
1590 0, entry->limit - entry->base + 1));
1591 }
1592
1593 if (!range_is_empty(pci_hole64)) {
1594 crs_replace_with_free_ranges(crs_range_set.mem_64bit_ranges,
1595 range_lob(pci_hole64),
1596 range_upb(pci_hole64));
1597 for (i = 0; i < crs_range_set.mem_64bit_ranges->len; i++) {
1598 entry = g_ptr_array_index(crs_range_set.mem_64bit_ranges, i);
1599 aml_append(crs,
1600 aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED,
1601 AML_MAX_FIXED,
1602 AML_CACHEABLE, AML_READ_WRITE,
1603 0, entry->base, entry->limit,
1604 0, entry->limit - entry->base + 1));
1605 }
1606 }
1607
1608 if (TPM_IS_TIS_ISA(tpm_find())) {
1609 aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
1610 TPM_TIS_ADDR_SIZE, AML_READ_WRITE));
1611 }
1612 aml_append(scope, aml_name_decl("_CRS", crs));
1613
1614 /* reserve GPE0 block resources */
1615 dev = aml_device("GPE0");
1616 aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A06")));
1617 aml_append(dev, aml_name_decl("_UID", aml_string("GPE0 resources")));
1618 /* device present, functioning, decoding, not shown in UI */
1619 aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
1620 crs = aml_resource_template();
1621 aml_append(crs,
1622 aml_io(
1623 AML_DECODE16,
1624 pm->fadt.gpe0_blk.address,
1625 pm->fadt.gpe0_blk.address,
1626 1,
1627 pm->fadt.gpe0_blk.bit_width / 8)
1628 );
1629 aml_append(dev, aml_name_decl("_CRS", crs));
1630 aml_append(scope, dev);
1631
1632 crs_range_set_free(&crs_range_set);
1633
1634 /* reserve PCIHP resources */
1635 if (pm->pcihp_io_len && (pm->pcihp_bridge_en || pm->pcihp_root_en)) {
1636 dev = aml_device("PHPR");
1637 aml_append(dev, aml_name_decl("_HID", aml_string("PNP0A06")));
1638 aml_append(dev,
1639 aml_name_decl("_UID", aml_string("PCI Hotplug resources")));
1640 /* device present, functioning, decoding, not shown in UI */
1641 aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
1642 crs = aml_resource_template();
1643 aml_append(crs,
1644 aml_io(AML_DECODE16, pm->pcihp_io_base, pm->pcihp_io_base, 1,
1645 pm->pcihp_io_len)
1646 );
1647 aml_append(dev, aml_name_decl("_CRS", crs));
1648 aml_append(scope, dev);
1649 }
1650 aml_append(dsdt, scope);
1651
1652 /* create S3_ / S4_ / S5_ packages if necessary */
1653 scope = aml_scope("\\");
1654 if (!pm->s3_disabled) {
1655 pkg = aml_package(4);
1656 aml_append(pkg, aml_int(1)); /* PM1a_CNT.SLP_TYP */
1657 aml_append(pkg, aml_int(1)); /* PM1b_CNT.SLP_TYP, FIXME: not impl. */
1658 aml_append(pkg, aml_int(0)); /* reserved */
1659 aml_append(pkg, aml_int(0)); /* reserved */
1660 aml_append(scope, aml_name_decl("_S3", pkg));
1661 }
1662
1663 if (!pm->s4_disabled) {
1664 pkg = aml_package(4);
1665 aml_append(pkg, aml_int(pm->s4_val)); /* PM1a_CNT.SLP_TYP */
1666 /* PM1b_CNT.SLP_TYP, FIXME: not impl. */
1667 aml_append(pkg, aml_int(pm->s4_val));
1668 aml_append(pkg, aml_int(0)); /* reserved */
1669 aml_append(pkg, aml_int(0)); /* reserved */
1670 aml_append(scope, aml_name_decl("_S4", pkg));
1671 }
1672
1673 pkg = aml_package(4);
1674 aml_append(pkg, aml_int(0)); /* PM1a_CNT.SLP_TYP */
1675 aml_append(pkg, aml_int(0)); /* PM1b_CNT.SLP_TYP not impl. */
1676 aml_append(pkg, aml_int(0)); /* reserved */
1677 aml_append(pkg, aml_int(0)); /* reserved */
1678 aml_append(scope, aml_name_decl("_S5", pkg));
1679 aml_append(dsdt, scope);
1680
1681 /* create fw_cfg node, unconditionally */
1682 {
1683 scope = aml_scope("\\_SB.PCI0");
1684 fw_cfg_add_acpi_dsdt(scope, x86ms->fw_cfg);
1685 aml_append(dsdt, scope);
1686 }
1687
1688 if (misc->applesmc_io_base) {
1689 scope = aml_scope("\\_SB.PCI0.ISA");
1690 dev = aml_device("SMC");
1691
1692 aml_append(dev, aml_name_decl("_HID", aml_eisaid("APP0001")));
1693 /* device present, functioning, decoding, not shown in UI */
1694 aml_append(dev, aml_name_decl("_STA", aml_int(0xB)));
1695
1696 crs = aml_resource_template();
1697 aml_append(crs,
1698 aml_io(AML_DECODE16, misc->applesmc_io_base, misc->applesmc_io_base,
1699 0x01, APPLESMC_MAX_DATA_LENGTH)
1700 );
1701 aml_append(crs, aml_irq_no_flags(6));
1702 aml_append(dev, aml_name_decl("_CRS", crs));
1703
1704 aml_append(scope, dev);
1705 aml_append(dsdt, scope);
1706 }
1707
1708 if (misc->pvpanic_port) {
1709 scope = aml_scope("\\_SB.PCI0.ISA");
1710
1711 dev = aml_device("PEVT");
1712 aml_append(dev, aml_name_decl("_HID", aml_string("QEMU0001")));
1713
1714 crs = aml_resource_template();
1715 aml_append(crs,
1716 aml_io(AML_DECODE16, misc->pvpanic_port, misc->pvpanic_port, 1, 1)
1717 );
1718 aml_append(dev, aml_name_decl("_CRS", crs));
1719
1720 aml_append(dev, aml_operation_region("PEOR", AML_SYSTEM_IO,
1721 aml_int(misc->pvpanic_port), 1));
1722 field = aml_field("PEOR", AML_BYTE_ACC, AML_NOLOCK, AML_PRESERVE);
1723 aml_append(field, aml_named_field("PEPT", 8));
1724 aml_append(dev, field);
1725
1726 /* device present, functioning, decoding, shown in UI */
1727 aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
1728
1729 method = aml_method("RDPT", 0, AML_NOTSERIALIZED);
1730 aml_append(method, aml_store(aml_name("PEPT"), aml_local(0)));
1731 aml_append(method, aml_return(aml_local(0)));
1732 aml_append(dev, method);
1733
1734 method = aml_method("WRPT", 1, AML_NOTSERIALIZED);
1735 aml_append(method, aml_store(aml_arg(0), aml_name("PEPT")));
1736 aml_append(dev, method);
1737
1738 aml_append(scope, dev);
1739 aml_append(dsdt, scope);
1740 }
1741
1742 sb_scope = aml_scope("\\_SB");
1743 {
1744 Object *pci_host;
1745 PCIBus *bus = NULL;
1746
1747 pci_host = acpi_get_i386_pci_host();
1748 if (pci_host) {
1749 bus = PCI_HOST_BRIDGE(pci_host)->bus;
1750 }
1751
1752 if (bus) {
1753 Aml *scope = aml_scope("PCI0");
1754 /* Scan all PCI buses. Generate tables to support hotplug. */
1755 build_append_pci_bus_devices(scope, bus, pm->pcihp_bridge_en);
1756
1757 if (TPM_IS_TIS_ISA(tpm)) {
1758 if (misc->tpm_version == TPM_VERSION_2_0) {
1759 dev = aml_device("TPM");
1760 aml_append(dev, aml_name_decl("_HID",
1761 aml_string("MSFT0101")));
1762 } else {
1763 dev = aml_device("ISA.TPM");
1764 aml_append(dev, aml_name_decl("_HID",
1765 aml_eisaid("PNP0C31")));
1766 }
1767
1768 aml_append(dev, aml_name_decl("_STA", aml_int(0xF)));
1769 crs = aml_resource_template();
1770 aml_append(crs, aml_memory32_fixed(TPM_TIS_ADDR_BASE,
1771 TPM_TIS_ADDR_SIZE, AML_READ_WRITE));
1772 /*
1773 FIXME: TPM_TIS_IRQ=5 conflicts with PNP0C0F irqs,
1774 Rewrite to take IRQ from TPM device model and
1775 fix default IRQ value there to use some unused IRQ
1776 */
1777 /* aml_append(crs, aml_irq_no_flags(TPM_TIS_IRQ)); */
1778 aml_append(dev, aml_name_decl("_CRS", crs));
1779
1780 tpm_build_ppi_acpi(tpm, dev);
1781
1782 aml_append(scope, dev);
1783 }
1784
1785 aml_append(sb_scope, scope);
1786 }
1787 }
1788
1789 if (TPM_IS_CRB(tpm)) {
1790 dev = aml_device("TPM");
1791 aml_append(dev, aml_name_decl("_HID", aml_string("MSFT0101")));
1792 crs = aml_resource_template();
1793 aml_append(crs, aml_memory32_fixed(TPM_CRB_ADDR_BASE,
1794 TPM_CRB_ADDR_SIZE, AML_READ_WRITE));
1795 aml_append(dev, aml_name_decl("_CRS", crs));
1796
1797 aml_append(dev, aml_name_decl("_STA", aml_int(0xf)));
1798
1799 tpm_build_ppi_acpi(tpm, dev);
1800
1801 aml_append(sb_scope, dev);
1802 }
1803
1804 aml_append(dsdt, sb_scope);
1805
1806 /* copy AML table into ACPI tables blob and patch header there */
1807 g_array_append_vals(table_data, dsdt->buf->data, dsdt->buf->len);
1808 build_header(linker, table_data,
1809 (void *)(table_data->data + table_data->len - dsdt->buf->len),
1810 "DSDT", dsdt->buf->len, 1, x86ms->oem_id, x86ms->oem_table_id);
1811 free_aml_allocator();
1812 }
1813
1814 static void
1815 build_hpet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
1816 const char *oem_table_id)
1817 {
1818 Acpi20Hpet *hpet;
1819
1820 hpet = acpi_data_push(table_data, sizeof(*hpet));
1821 /* Note timer_block_id value must be kept in sync with value advertised by
1822 * emulated hpet
1823 */
1824 hpet->timer_block_id = cpu_to_le32(0x8086a201);
1825 hpet->addr.address = cpu_to_le64(HPET_BASE);
1826 build_header(linker, table_data,
1827 (void *)hpet, "HPET", sizeof(*hpet), 1, oem_id, oem_table_id);
1828 }
1829
1830 static void
1831 build_tpm_tcpa(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
1832 const char *oem_id, const char *oem_table_id)
1833 {
1834 Acpi20Tcpa *tcpa = acpi_data_push(table_data, sizeof *tcpa);
1835 unsigned log_addr_size = sizeof(tcpa->log_area_start_address);
1836 unsigned log_addr_offset =
1837 (char *)&tcpa->log_area_start_address - table_data->data;
1838
1839 tcpa->platform_class = cpu_to_le16(TPM_TCPA_ACPI_CLASS_CLIENT);
1840 tcpa->log_area_minimum_length = cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE);
1841 acpi_data_push(tcpalog, le32_to_cpu(tcpa->log_area_minimum_length));
1842
1843 bios_linker_loader_alloc(linker, ACPI_BUILD_TPMLOG_FILE, tcpalog, 1,
1844 false /* high memory */);
1845
1846 /* log area start address to be filled by Guest linker */
1847 bios_linker_loader_add_pointer(linker,
1848 ACPI_BUILD_TABLE_FILE, log_addr_offset, log_addr_size,
1849 ACPI_BUILD_TPMLOG_FILE, 0);
1850
1851 build_header(linker, table_data,
1852 (void *)tcpa, "TCPA", sizeof(*tcpa), 2, oem_id, oem_table_id);
1853 }
1854
1855 #define HOLE_640K_START (640 * KiB)
1856 #define HOLE_640K_END (1 * MiB)
1857
1858 static void
1859 build_srat(GArray *table_data, BIOSLinker *linker, MachineState *machine)
1860 {
1861 AcpiSystemResourceAffinityTable *srat;
1862 AcpiSratMemoryAffinity *numamem;
1863
1864 int i;
1865 int srat_start, numa_start, slots;
1866 uint64_t mem_len, mem_base, next_base;
1867 MachineClass *mc = MACHINE_GET_CLASS(machine);
1868 X86MachineState *x86ms = X86_MACHINE(machine);
1869 const CPUArchIdList *apic_ids = mc->possible_cpu_arch_ids(machine);
1870 PCMachineState *pcms = PC_MACHINE(machine);
1871 ram_addr_t hotplugabble_address_space_size =
1872 object_property_get_int(OBJECT(pcms), PC_MACHINE_DEVMEM_REGION_SIZE,
1873 NULL);
1874
1875 srat_start = table_data->len;
1876
1877 srat = acpi_data_push(table_data, sizeof *srat);
1878 srat->reserved1 = cpu_to_le32(1);
1879
1880 for (i = 0; i < apic_ids->len; i++) {
1881 int node_id = apic_ids->cpus[i].props.node_id;
1882 uint32_t apic_id = apic_ids->cpus[i].arch_id;
1883
1884 if (apic_id < 255) {
1885 AcpiSratProcessorAffinity *core;
1886
1887 core = acpi_data_push(table_data, sizeof *core);
1888 core->type = ACPI_SRAT_PROCESSOR_APIC;
1889 core->length = sizeof(*core);
1890 core->local_apic_id = apic_id;
1891 core->proximity_lo = node_id;
1892 memset(core->proximity_hi, 0, 3);
1893 core->local_sapic_eid = 0;
1894 core->flags = cpu_to_le32(1);
1895 } else {
1896 AcpiSratProcessorX2ApicAffinity *core;
1897
1898 core = acpi_data_push(table_data, sizeof *core);
1899 core->type = ACPI_SRAT_PROCESSOR_x2APIC;
1900 core->length = sizeof(*core);
1901 core->x2apic_id = cpu_to_le32(apic_id);
1902 core->proximity_domain = cpu_to_le32(node_id);
1903 core->flags = cpu_to_le32(1);
1904 }
1905 }
1906
1907
1908 /* the memory map is a bit tricky, it contains at least one hole
1909 * from 640k-1M and possibly another one from 3.5G-4G.
1910 */
1911 next_base = 0;
1912 numa_start = table_data->len;
1913
1914 for (i = 1; i < pcms->numa_nodes + 1; ++i) {
1915 mem_base = next_base;
1916 mem_len = pcms->node_mem[i - 1];
1917 next_base = mem_base + mem_len;
1918
1919 /* Cut out the 640K hole */
1920 if (mem_base <= HOLE_640K_START &&
1921 next_base > HOLE_640K_START) {
1922 mem_len -= next_base - HOLE_640K_START;
1923 if (mem_len > 0) {
1924 numamem = acpi_data_push(table_data, sizeof *numamem);
1925 build_srat_memory(numamem, mem_base, mem_len, i - 1,
1926 MEM_AFFINITY_ENABLED);
1927 }
1928
1929 /* Check for the rare case: 640K < RAM < 1M */
1930 if (next_base <= HOLE_640K_END) {
1931 next_base = HOLE_640K_END;
1932 continue;
1933 }
1934 mem_base = HOLE_640K_END;
1935 mem_len = next_base - HOLE_640K_END;
1936 }
1937
1938 /* Cut out the ACPI_PCI hole */
1939 if (mem_base <= x86ms->below_4g_mem_size &&
1940 next_base > x86ms->below_4g_mem_size) {
1941 mem_len -= next_base - x86ms->below_4g_mem_size;
1942 if (mem_len > 0) {
1943 numamem = acpi_data_push(table_data, sizeof *numamem);
1944 build_srat_memory(numamem, mem_base, mem_len, i - 1,
1945 MEM_AFFINITY_ENABLED);
1946 }
1947 mem_base = 1ULL << 32;
1948 mem_len = next_base - x86ms->below_4g_mem_size;
1949 next_base = mem_base + mem_len;
1950 }
1951
1952 if (mem_len > 0) {
1953 numamem = acpi_data_push(table_data, sizeof *numamem);
1954 build_srat_memory(numamem, mem_base, mem_len, i - 1,
1955 MEM_AFFINITY_ENABLED);
1956 }
1957 }
1958
1959 if (machine->nvdimms_state->is_enabled) {
1960 nvdimm_build_srat(table_data);
1961 }
1962
1963 slots = (table_data->len - numa_start) / sizeof *numamem;
1964 for (; slots < pcms->numa_nodes + 2; slots++) {
1965 numamem = acpi_data_push(table_data, sizeof *numamem);
1966 build_srat_memory(numamem, 0, 0, 0, MEM_AFFINITY_NOFLAGS);
1967 }
1968
1969 /*
1970 * Entry is required for Windows to enable memory hotplug in OS
1971 * and for Linux to enable SWIOTLB when booted with less than
1972 * 4G of RAM. Windows works better if the entry sets proximity
1973 * to the highest NUMA node in the machine.
1974 * Memory devices may override proximity set by this entry,
1975 * providing _PXM method if necessary.
1976 */
1977 if (hotplugabble_address_space_size) {
1978 numamem = acpi_data_push(table_data, sizeof *numamem);
1979 build_srat_memory(numamem, machine->device_memory->base,
1980 hotplugabble_address_space_size, pcms->numa_nodes - 1,
1981 MEM_AFFINITY_HOTPLUGGABLE | MEM_AFFINITY_ENABLED);
1982 }
1983
1984 build_header(linker, table_data,
1985 (void *)(table_data->data + srat_start),
1986 "SRAT",
1987 table_data->len - srat_start, 1, x86ms->oem_id,
1988 x86ms->oem_table_id);
1989 }
1990
1991 /*
1992 * VT-d spec 8.1 DMA Remapping Reporting Structure
1993 * (version Oct. 2014 or later)
1994 */
1995 static void
1996 build_dmar_q35(GArray *table_data, BIOSLinker *linker, const char *oem_id,
1997 const char *oem_table_id)
1998 {
1999 int dmar_start = table_data->len;
2000
2001 AcpiTableDmar *dmar;
2002 AcpiDmarHardwareUnit *drhd;
2003 AcpiDmarRootPortATS *atsr;
2004 uint8_t dmar_flags = 0;
2005 X86IOMMUState *iommu = x86_iommu_get_default();
2006 AcpiDmarDeviceScope *scope = NULL;
2007 /* Root complex IOAPIC use one path[0] only */
2008 size_t ioapic_scope_size = sizeof(*scope) + sizeof(scope->path[0]);
2009 IntelIOMMUState *intel_iommu = INTEL_IOMMU_DEVICE(iommu);
2010
2011 assert(iommu);
2012 if (x86_iommu_ir_supported(iommu)) {
2013 dmar_flags |= 0x1; /* Flags: 0x1: INT_REMAP */
2014 }
2015
2016 dmar = acpi_data_push(table_data, sizeof(*dmar));
2017 dmar->host_address_width = intel_iommu->aw_bits - 1;
2018 dmar->flags = dmar_flags;
2019
2020 /* DMAR Remapping Hardware Unit Definition structure */
2021 drhd = acpi_data_push(table_data, sizeof(*drhd) + ioapic_scope_size);
2022 drhd->type = cpu_to_le16(ACPI_DMAR_TYPE_HARDWARE_UNIT);
2023 drhd->length = cpu_to_le16(sizeof(*drhd) + ioapic_scope_size);
2024 drhd->flags = ACPI_DMAR_INCLUDE_PCI_ALL;
2025 drhd->pci_segment = cpu_to_le16(0);
2026 drhd->address = cpu_to_le64(Q35_HOST_BRIDGE_IOMMU_ADDR);
2027
2028 /* Scope definition for the root-complex IOAPIC. See VT-d spec
2029 * 8.3.1 (version Oct. 2014 or later). */
2030 scope = &drhd->scope[0];
2031 scope->entry_type = 0x03; /* Type: 0x03 for IOAPIC */
2032 scope->length = ioapic_scope_size;
2033 scope->enumeration_id = ACPI_BUILD_IOAPIC_ID;
2034 scope->bus = Q35_PSEUDO_BUS_PLATFORM;
2035 scope->path[0].device = PCI_SLOT(Q35_PSEUDO_DEVFN_IOAPIC);
2036 scope->path[0].function = PCI_FUNC(Q35_PSEUDO_DEVFN_IOAPIC);
2037
2038 if (iommu->dt_supported) {
2039 atsr = acpi_data_push(table_data, sizeof(*atsr));
2040 atsr->type = cpu_to_le16(ACPI_DMAR_TYPE_ATSR);
2041 atsr->length = cpu_to_le16(sizeof(*atsr));
2042 atsr->flags = ACPI_DMAR_ATSR_ALL_PORTS;
2043 atsr->pci_segment = cpu_to_le16(0);
2044 }
2045
2046 build_header(linker, table_data, (void *)(table_data->data + dmar_start),
2047 "DMAR", table_data->len - dmar_start, 1, oem_id, oem_table_id);
2048 }
2049
2050 /*
2051 * Windows ACPI Emulated Devices Table
2052 * (Version 1.0 - April 6, 2009)
2053 * Spec: http://download.microsoft.com/download/7/E/7/7E7662CF-CBEA-470B-A97E-CE7CE0D98DC2/WAET.docx
2054 *
2055 * Helpful to speedup Windows guests and ignored by others.
2056 */
2057 static void
2058 build_waet(GArray *table_data, BIOSLinker *linker, const char *oem_id,
2059 const char *oem_table_id)
2060 {
2061 int waet_start = table_data->len;
2062
2063 /* WAET header */
2064 acpi_data_push(table_data, sizeof(AcpiTableHeader));
2065 /*
2066 * Set "ACPI PM timer good" flag.
2067 *
2068 * Tells Windows guests that our ACPI PM timer is reliable in the
2069 * sense that guest can read it only once to obtain a reliable value.
2070 * Which avoids costly VMExits caused by guest re-reading it unnecessarily.
2071 */
2072 build_append_int_noprefix(table_data, 1 << 1 /* ACPI PM timer good */, 4);
2073
2074 build_header(linker, table_data, (void *)(table_data->data + waet_start),
2075 "WAET", table_data->len - waet_start, 1, oem_id, oem_table_id);
2076 }
2077
2078 /*
2079 * IVRS table as specified in AMD IOMMU Specification v2.62, Section 5.2
2080 * accessible here http://support.amd.com/TechDocs/48882_IOMMU.pdf
2081 */
2082 #define IOAPIC_SB_DEVID (uint64_t)PCI_BUILD_BDF(0, PCI_DEVFN(0x14, 0))
2083
2084 /*
2085 * Insert IVHD entry for device and recurse, insert alias, or insert range as
2086 * necessary for the PCI topology.
2087 */
2088 static void
2089 insert_ivhd(PCIBus *bus, PCIDevice *dev, void *opaque)
2090 {
2091 GArray *table_data = opaque;
2092 uint32_t entry;
2093
2094 /* "Select" IVHD entry, type 0x2 */
2095 entry = PCI_BUILD_BDF(pci_bus_num(bus), dev->devfn) << 8 | 0x2;
2096 build_append_int_noprefix(table_data, entry, 4);
2097
2098 if (object_dynamic_cast(OBJECT(dev), TYPE_PCI_BRIDGE)) {
2099 PCIBus *sec_bus = pci_bridge_get_sec_bus(PCI_BRIDGE(dev));
2100 uint8_t sec = pci_bus_num(sec_bus);
2101 uint8_t sub = dev->config[PCI_SUBORDINATE_BUS];
2102
2103 if (pci_bus_is_express(sec_bus)) {
2104 /*
2105 * Walk the bus if there are subordinates, otherwise use a range
2106 * to cover an entire leaf bus. We could potentially also use a
2107 * range for traversed buses, but we'd need to take care not to
2108 * create both Select and Range entries covering the same device.
2109 * This is easier and potentially more compact.
2110 *
2111 * An example bare metal system seems to use Select entries for
2112 * root ports without a slot (ie. built-ins) and Range entries
2113 * when there is a slot. The same system also only hard-codes
2114 * the alias range for an onboard PCIe-to-PCI bridge, apparently
2115 * making no effort to support nested bridges. We attempt to
2116 * be more thorough here.
2117 */
2118 if (sec == sub) { /* leaf bus */
2119 /* "Start of Range" IVHD entry, type 0x3 */
2120 entry = PCI_BUILD_BDF(sec, PCI_DEVFN(0, 0)) << 8 | 0x3;
2121 build_append_int_noprefix(table_data, entry, 4);
2122 /* "End of Range" IVHD entry, type 0x4 */
2123 entry = PCI_BUILD_BDF(sub, PCI_DEVFN(31, 7)) << 8 | 0x4;
2124 build_append_int_noprefix(table_data, entry, 4);
2125 } else {
2126 pci_for_each_device(sec_bus, sec, insert_ivhd, table_data);
2127 }
2128 } else {
2129 /*
2130 * If the secondary bus is conventional, then we need to create an
2131 * Alias range for everything downstream. The range covers the
2132 * first devfn on the secondary bus to the last devfn on the
2133 * subordinate bus. The alias target depends on legacy versus
2134 * express bridges, just as in pci_device_iommu_address_space().
2135 * DeviceIDa vs DeviceIDb as per the AMD IOMMU spec.
2136 */
2137 uint16_t dev_id_a, dev_id_b;
2138
2139 dev_id_a = PCI_BUILD_BDF(sec, PCI_DEVFN(0, 0));
2140
2141 if (pci_is_express(dev) &&
2142 pcie_cap_get_type(dev) == PCI_EXP_TYPE_PCI_BRIDGE) {
2143 dev_id_b = dev_id_a;
2144 } else {
2145 dev_id_b = PCI_BUILD_BDF(pci_bus_num(bus), dev->devfn);
2146 }
2147
2148 /* "Alias Start of Range" IVHD entry, type 0x43, 8 bytes */
2149 build_append_int_noprefix(table_data, dev_id_a << 8 | 0x43, 4);
2150 build_append_int_noprefix(table_data, dev_id_b << 8 | 0x0, 4);
2151
2152 /* "End of Range" IVHD entry, type 0x4 */
2153 entry = PCI_BUILD_BDF(sub, PCI_DEVFN(31, 7)) << 8 | 0x4;
2154 build_append_int_noprefix(table_data, entry, 4);
2155 }
2156 }
2157 }
2158
2159 /* For all PCI host bridges, walk and insert IVHD entries */
2160 static int
2161 ivrs_host_bridges(Object *obj, void *opaque)
2162 {
2163 GArray *ivhd_blob = opaque;
2164
2165 if (object_dynamic_cast(obj, TYPE_PCI_HOST_BRIDGE)) {
2166 PCIBus *bus = PCI_HOST_BRIDGE(obj)->bus;
2167
2168 if (bus) {
2169 pci_for_each_device(bus, pci_bus_num(bus), insert_ivhd, ivhd_blob);
2170 }
2171 }
2172
2173 return 0;
2174 }
2175
2176 static void
2177 build_amd_iommu(GArray *table_data, BIOSLinker *linker, const char *oem_id,
2178 const char *oem_table_id)
2179 {
2180 int ivhd_table_len = 24;
2181 int iommu_start = table_data->len;
2182 AMDVIState *s = AMD_IOMMU_DEVICE(x86_iommu_get_default());
2183 GArray *ivhd_blob = g_array_new(false, true, 1);
2184
2185 /* IVRS header */
2186 acpi_data_push(table_data, sizeof(AcpiTableHeader));
2187 /* IVinfo - IO virtualization information common to all
2188 * IOMMU units in a system
2189 */
2190 build_append_int_noprefix(table_data, 40UL << 8/* PASize */, 4);
2191 /* reserved */
2192 build_append_int_noprefix(table_data, 0, 8);
2193
2194 /* IVHD definition - type 10h */
2195 build_append_int_noprefix(table_data, 0x10, 1);
2196 /* virtualization flags */
2197 build_append_int_noprefix(table_data,
2198 (1UL << 0) | /* HtTunEn */
2199 (1UL << 4) | /* iotblSup */
2200 (1UL << 6) | /* PrefSup */
2201 (1UL << 7), /* PPRSup */
2202 1);
2203
2204 /*
2205 * A PCI bus walk, for each PCI host bridge, is necessary to create a
2206 * complete set of IVHD entries. Do this into a separate blob so that we
2207 * can calculate the total IVRS table length here and then append the new
2208 * blob further below. Fall back to an entry covering all devices, which
2209 * is sufficient when no aliases are present.
2210 */
2211 object_child_foreach_recursive(object_get_root(),
2212 ivrs_host_bridges, ivhd_blob);
2213
2214 if (!ivhd_blob->len) {
2215 /*
2216 * Type 1 device entry reporting all devices
2217 * These are 4-byte device entries currently reporting the range of
2218 * Refer to Spec - Table 95:IVHD Device Entry Type Codes(4-byte)
2219 */
2220 build_append_int_noprefix(ivhd_blob, 0x0000001, 4);
2221 }
2222
2223 ivhd_table_len += ivhd_blob->len;
2224
2225 /*
2226 * When interrupt remapping is supported, we add a special IVHD device
2227 * for type IO-APIC.
2228 */
2229 if (x86_iommu_ir_supported(x86_iommu_get_default())) {
2230 ivhd_table_len += 8;
2231 }
2232
2233 /* IVHD length */
2234 build_append_int_noprefix(table_data, ivhd_table_len, 2);
2235 /* DeviceID */
2236 build_append_int_noprefix(table_data, s->devid, 2);
2237 /* Capability offset */
2238 build_append_int_noprefix(table_data, s->capab_offset, 2);
2239 /* IOMMU base address */
2240 build_append_int_noprefix(table_data, s->mmio.addr, 8);
2241 /* PCI Segment Group */
2242 build_append_int_noprefix(table_data, 0, 2);
2243 /* IOMMU info */
2244 build_append_int_noprefix(table_data, 0, 2);
2245 /* IOMMU Feature Reporting */
2246 build_append_int_noprefix(table_data,
2247 (48UL << 30) | /* HATS */
2248 (48UL << 28) | /* GATS */
2249 (1UL << 2) | /* GTSup */
2250 (1UL << 6), /* GASup */
2251 4);
2252
2253 /* IVHD entries as found above */
2254 g_array_append_vals(table_data, ivhd_blob->data, ivhd_blob->len);
2255 g_array_free(ivhd_blob, TRUE);
2256
2257 /*
2258 * Add a special IVHD device type.
2259 * Refer to spec - Table 95: IVHD device entry type codes
2260 *
2261 * Linux IOMMU driver checks for the special IVHD device (type IO-APIC).
2262 * See Linux kernel commit 'c2ff5cf5294bcbd7fa50f7d860e90a66db7e5059'
2263 */
2264 if (x86_iommu_ir_supported(x86_iommu_get_default())) {
2265 build_append_int_noprefix(table_data,
2266 (0x1ull << 56) | /* type IOAPIC */
2267 (IOAPIC_SB_DEVID << 40) | /* IOAPIC devid */
2268 0x48, /* special device */
2269 8);
2270 }
2271
2272 build_header(linker, table_data, (void *)(table_data->data + iommu_start),
2273 "IVRS", table_data->len - iommu_start, 1, oem_id,
2274 oem_table_id);
2275 }
2276
2277 typedef
2278 struct AcpiBuildState {
2279 /* Copy of table in RAM (for patching). */
2280 MemoryRegion *table_mr;
2281 /* Is table patched? */
2282 uint8_t patched;
2283 void *rsdp;
2284 MemoryRegion *rsdp_mr;
2285 MemoryRegion *linker_mr;
2286 } AcpiBuildState;
2287
2288 static bool acpi_get_mcfg(AcpiMcfgInfo *mcfg)
2289 {
2290 Object *pci_host;
2291 QObject *o;
2292
2293 pci_host = acpi_get_i386_pci_host();
2294 g_assert(pci_host);
2295
2296 o = object_property_get_qobject(pci_host, PCIE_HOST_MCFG_BASE, NULL);
2297 if (!o) {
2298 return false;
2299 }
2300 mcfg->base = qnum_get_uint(qobject_to(QNum, o));
2301 qobject_unref(o);
2302 if (mcfg->base == PCIE_BASE_ADDR_UNMAPPED) {
2303 return false;
2304 }
2305
2306 o = object_property_get_qobject(pci_host, PCIE_HOST_MCFG_SIZE, NULL);
2307 assert(o);
2308 mcfg->size = qnum_get_uint(qobject_to(QNum, o));
2309 qobject_unref(o);
2310 return true;
2311 }
2312
2313 static
2314 void acpi_build(AcpiBuildTables *tables, MachineState *machine)
2315 {
2316 PCMachineState *pcms = PC_MACHINE(machine);
2317 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
2318 X86MachineState *x86ms = X86_MACHINE(machine);
2319 GArray *table_offsets;
2320 unsigned facs, dsdt, rsdt, fadt;
2321 AcpiPmInfo pm;
2322 AcpiMiscInfo misc;
2323 AcpiMcfgInfo mcfg;
2324 Range pci_hole, pci_hole64;
2325 uint8_t *u;
2326 size_t aml_len = 0;
2327 GArray *tables_blob = tables->table_data;
2328 AcpiSlicOem slic_oem = { .id = NULL, .table_id = NULL };
2329 Object *vmgenid_dev;
2330 char *oem_id;
2331 char *oem_table_id;
2332
2333 acpi_get_pm_info(machine, &pm);
2334 acpi_get_misc_info(&misc);
2335 acpi_get_pci_holes(&pci_hole, &pci_hole64);
2336 acpi_get_slic_oem(&slic_oem);
2337
2338 if (slic_oem.id) {
2339 oem_id = slic_oem.id;
2340 } else {
2341 oem_id = x86ms->oem_id;
2342 }
2343
2344 if (slic_oem.table_id) {
2345 oem_table_id = slic_oem.table_id;
2346 } else {
2347 oem_table_id = x86ms->oem_table_id;
2348 }
2349
2350 table_offsets = g_array_new(false, true /* clear */,
2351 sizeof(uint32_t));
2352 ACPI_BUILD_DPRINTF("init ACPI tables\n");
2353
2354 bios_linker_loader_alloc(tables->linker,
2355 ACPI_BUILD_TABLE_FILE, tables_blob,
2356 64 /* Ensure FACS is aligned */,
2357 false /* high memory */);
2358
2359 /*
2360 * FACS is pointed to by FADT.
2361 * We place it first since it's the only table that has alignment
2362 * requirements.
2363 */
2364 facs = tables_blob->len;
2365 build_facs(tables_blob);
2366
2367 /* DSDT is pointed to by FADT */
2368 dsdt = tables_blob->len;
2369 build_dsdt(tables_blob, tables->linker, &pm, &misc,
2370 &pci_hole, &pci_hole64, machine);
2371
2372 /* Count the size of the DSDT and SSDT, we will need it for legacy
2373 * sizing of ACPI tables.
2374 */
2375 aml_len += tables_blob->len - dsdt;
2376
2377 /* ACPI tables pointed to by RSDT */
2378 fadt = tables_blob->len;
2379 acpi_add_table(table_offsets, tables_blob);
2380 pm.fadt.facs_tbl_offset = &facs;
2381 pm.fadt.dsdt_tbl_offset = &dsdt;
2382 pm.fadt.xdsdt_tbl_offset = &dsdt;
2383 build_fadt(tables_blob, tables->linker, &pm.fadt, oem_id, oem_table_id);
2384 aml_len += tables_blob->len - fadt;
2385
2386 acpi_add_table(table_offsets, tables_blob);
2387 acpi_build_madt(tables_blob, tables->linker, x86ms,
2388 ACPI_DEVICE_IF(x86ms->acpi_dev), x86ms->oem_id,
2389 x86ms->oem_table_id);
2390
2391 vmgenid_dev = find_vmgenid_dev();
2392 if (vmgenid_dev) {
2393 acpi_add_table(table_offsets, tables_blob);
2394 vmgenid_build_acpi(VMGENID(vmgenid_dev), tables_blob,
2395 tables->vmgenid, tables->linker, x86ms->oem_id);
2396 }
2397
2398 if (misc.has_hpet) {
2399 acpi_add_table(table_offsets, tables_blob);
2400 build_hpet(tables_blob, tables->linker, x86ms->oem_id,
2401 x86ms->oem_table_id);
2402 }
2403 if (misc.tpm_version != TPM_VERSION_UNSPEC) {
2404 if (misc.tpm_version == TPM_VERSION_1_2) {
2405 acpi_add_table(table_offsets, tables_blob);
2406 build_tpm_tcpa(tables_blob, tables->linker, tables->tcpalog,
2407 x86ms->oem_id, x86ms->oem_table_id);
2408 } else { /* TPM_VERSION_2_0 */
2409 acpi_add_table(table_offsets, tables_blob);
2410 build_tpm2(tables_blob, tables->linker, tables->tcpalog,
2411 x86ms->oem_id, x86ms->oem_table_id);
2412 }
2413 }
2414 if (pcms->numa_nodes) {
2415 acpi_add_table(table_offsets, tables_blob);
2416 build_srat(tables_blob, tables->linker, machine);
2417 if (machine->numa_state->have_numa_distance) {
2418 acpi_add_table(table_offsets, tables_blob);
2419 build_slit(tables_blob, tables->linker, machine, x86ms->oem_id,
2420 x86ms->oem_table_id);
2421 }
2422 if (machine->numa_state->hmat_enabled) {
2423 acpi_add_table(table_offsets, tables_blob);
2424 build_hmat(tables_blob, tables->linker, machine->numa_state,
2425 x86ms->oem_id, x86ms->oem_table_id);
2426 }
2427 }
2428 if (acpi_get_mcfg(&mcfg)) {
2429 acpi_add_table(table_offsets, tables_blob);
2430 build_mcfg(tables_blob, tables->linker, &mcfg, x86ms->oem_id,
2431 x86ms->oem_table_id);
2432 }
2433 if (x86_iommu_get_default()) {
2434 IommuType IOMMUType = x86_iommu_get_type();
2435 if (IOMMUType == TYPE_AMD) {
2436 acpi_add_table(table_offsets, tables_blob);
2437 build_amd_iommu(tables_blob, tables->linker, x86ms->oem_id,
2438 x86ms->oem_table_id);
2439 } else if (IOMMUType == TYPE_INTEL) {
2440 acpi_add_table(table_offsets, tables_blob);
2441 build_dmar_q35(tables_blob, tables->linker, x86ms->oem_id,
2442 x86ms->oem_table_id);
2443 }
2444 }
2445 if (machine->nvdimms_state->is_enabled) {
2446 nvdimm_build_acpi(table_offsets, tables_blob, tables->linker,
2447 machine->nvdimms_state, machine->ram_slots,
2448 x86ms->oem_id, x86ms->oem_table_id);
2449 }
2450
2451 acpi_add_table(table_offsets, tables_blob);
2452 build_waet(tables_blob, tables->linker, x86ms->oem_id, x86ms->oem_table_id);
2453
2454 /* Add tables supplied by user (if any) */
2455 for (u = acpi_table_first(); u; u = acpi_table_next(u)) {
2456 unsigned len = acpi_table_len(u);
2457
2458 acpi_add_table(table_offsets, tables_blob);
2459 g_array_append_vals(tables_blob, u, len);
2460 }
2461
2462 /* RSDT is pointed to by RSDP */
2463 rsdt = tables_blob->len;
2464 build_rsdt(tables_blob, tables->linker, table_offsets,
2465 oem_id, oem_table_id);
2466
2467 /* RSDP is in FSEG memory, so allocate it separately */
2468 {
2469 AcpiRsdpData rsdp_data = {
2470 .revision = 0,
2471 .oem_id = x86ms->oem_id,
2472 .xsdt_tbl_offset = NULL,
2473 .rsdt_tbl_offset = &rsdt,
2474 };
2475 build_rsdp(tables->rsdp, tables->linker, &rsdp_data);
2476 if (!pcmc->rsdp_in_ram) {
2477 /* We used to allocate some extra space for RSDP revision 2 but
2478 * only used the RSDP revision 0 space. The extra bytes were
2479 * zeroed out and not used.
2480 * Here we continue wasting those extra 16 bytes to make sure we
2481 * don't break migration for machine types 2.2 and older due to
2482 * RSDP blob size mismatch.
2483 */
2484 build_append_int_noprefix(tables->rsdp, 0, 16);
2485 }
2486 }
2487
2488 /* We'll expose it all to Guest so we want to reduce
2489 * chance of size changes.
2490 *
2491 * We used to align the tables to 4k, but of course this would
2492 * too simple to be enough. 4k turned out to be too small an
2493 * alignment very soon, and in fact it is almost impossible to
2494 * keep the table size stable for all (max_cpus, max_memory_slots)
2495 * combinations. So the table size is always 64k for pc-i440fx-2.1
2496 * and we give an error if the table grows beyond that limit.
2497 *
2498 * We still have the problem of migrating from "-M pc-i440fx-2.0". For
2499 * that, we exploit the fact that QEMU 2.1 generates _smaller_ tables
2500 * than 2.0 and we can always pad the smaller tables with zeros. We can
2501 * then use the exact size of the 2.0 tables.
2502 *
2503 * All this is for PIIX4, since QEMU 2.0 didn't support Q35 migration.
2504 */
2505 if (pcmc->legacy_acpi_table_size) {
2506 /* Subtracting aml_len gives the size of fixed tables. Then add the
2507 * size of the PIIX4 DSDT/SSDT in QEMU 2.0.
2508 */
2509 int legacy_aml_len =
2510 pcmc->legacy_acpi_table_size +
2511 ACPI_BUILD_LEGACY_CPU_AML_SIZE * x86ms->apic_id_limit;
2512 int legacy_table_size =
2513 ROUND_UP(tables_blob->len - aml_len + legacy_aml_len,
2514 ACPI_BUILD_ALIGN_SIZE);
2515 if (tables_blob->len > legacy_table_size) {
2516 /* Should happen only with PCI bridges and -M pc-i440fx-2.0. */
2517 warn_report("ACPI table size %u exceeds %d bytes,"
2518 " migration may not work",
2519 tables_blob->len, legacy_table_size);
2520 error_printf("Try removing CPUs, NUMA nodes, memory slots"
2521 " or PCI bridges.");
2522 }
2523 g_array_set_size(tables_blob, legacy_table_size);
2524 } else {
2525 /* Make sure we have a buffer in case we need to resize the tables. */
2526 if (tables_blob->len > ACPI_BUILD_TABLE_SIZE / 2) {
2527 /* As of QEMU 2.1, this fires with 160 VCPUs and 255 memory slots. */
2528 warn_report("ACPI table size %u exceeds %d bytes,"
2529 " migration may not work",
2530 tables_blob->len, ACPI_BUILD_TABLE_SIZE / 2);
2531 error_printf("Try removing CPUs, NUMA nodes, memory slots"
2532 " or PCI bridges.");
2533 }
2534 acpi_align_size(tables_blob, ACPI_BUILD_TABLE_SIZE);
2535 }
2536
2537 acpi_align_size(tables->linker->cmd_blob, ACPI_BUILD_ALIGN_SIZE);
2538
2539 /* Cleanup memory that's no longer used. */
2540 g_array_free(table_offsets, true);
2541 }
2542
2543 static void acpi_ram_update(MemoryRegion *mr, GArray *data)
2544 {
2545 uint32_t size = acpi_data_len(data);
2546
2547 /* Make sure RAM size is correct - in case it got changed e.g. by migration */
2548 memory_region_ram_resize(mr, size, &error_abort);
2549
2550 memcpy(memory_region_get_ram_ptr(mr), data->data, size);
2551 memory_region_set_dirty(mr, 0, size);
2552 }
2553
2554 static void acpi_build_update(void *build_opaque)
2555 {
2556 AcpiBuildState *build_state = build_opaque;
2557 AcpiBuildTables tables;
2558
2559 /* No state to update or already patched? Nothing to do. */
2560 if (!build_state || build_state->patched) {
2561 return;
2562 }
2563 build_state->patched = 1;
2564
2565 acpi_build_tables_init(&tables);
2566
2567 acpi_build(&tables, MACHINE(qdev_get_machine()));
2568
2569 acpi_ram_update(build_state->table_mr, tables.table_data);
2570
2571 if (build_state->rsdp) {
2572 memcpy(build_state->rsdp, tables.rsdp->data, acpi_data_len(tables.rsdp));
2573 } else {
2574 acpi_ram_update(build_state->rsdp_mr, tables.rsdp);
2575 }
2576
2577 acpi_ram_update(build_state->linker_mr, tables.linker->cmd_blob);
2578 acpi_build_tables_cleanup(&tables, true);
2579 }
2580
2581 static void acpi_build_reset(void *build_opaque)
2582 {
2583 AcpiBuildState *build_state = build_opaque;
2584 build_state->patched = 0;
2585 }
2586
2587 static const VMStateDescription vmstate_acpi_build = {
2588 .name = "acpi_build",
2589 .version_id = 1,
2590 .minimum_version_id = 1,
2591 .fields = (VMStateField[]) {
2592 VMSTATE_UINT8(patched, AcpiBuildState),
2593 VMSTATE_END_OF_LIST()
2594 },
2595 };
2596
2597 void acpi_setup(void)
2598 {
2599 PCMachineState *pcms = PC_MACHINE(qdev_get_machine());
2600 PCMachineClass *pcmc = PC_MACHINE_GET_CLASS(pcms);
2601 X86MachineState *x86ms = X86_MACHINE(pcms);
2602 AcpiBuildTables tables;
2603 AcpiBuildState *build_state;
2604 Object *vmgenid_dev;
2605 TPMIf *tpm;
2606 static FwCfgTPMConfig tpm_config;
2607
2608 if (!x86ms->fw_cfg) {
2609 ACPI_BUILD_DPRINTF("No fw cfg. Bailing out.\n");
2610 return;
2611 }
2612
2613 if (!pcms->acpi_build_enabled) {
2614 ACPI_BUILD_DPRINTF("ACPI build disabled. Bailing out.\n");
2615 return;
2616 }
2617
2618 if (!x86_machine_is_acpi_enabled(X86_MACHINE(pcms))) {
2619 ACPI_BUILD_DPRINTF("ACPI disabled. Bailing out.\n");
2620 return;
2621 }
2622
2623 build_state = g_malloc0(sizeof *build_state);
2624
2625 acpi_build_tables_init(&tables);
2626 acpi_build(&tables, MACHINE(pcms));
2627
2628 /* Now expose it all to Guest */
2629 build_state->table_mr = acpi_add_rom_blob(acpi_build_update,
2630 build_state, tables.table_data,
2631 ACPI_BUILD_TABLE_FILE);
2632 assert(build_state->table_mr != NULL);
2633
2634 build_state->linker_mr =
2635 acpi_add_rom_blob(acpi_build_update, build_state,
2636 tables.linker->cmd_blob, ACPI_BUILD_LOADER_FILE);
2637
2638 fw_cfg_add_file(x86ms->fw_cfg, ACPI_BUILD_TPMLOG_FILE,
2639 tables.tcpalog->data, acpi_data_len(tables.tcpalog));
2640
2641 tpm = tpm_find();
2642 if (tpm && object_property_get_bool(OBJECT(tpm), "ppi", &error_abort)) {
2643 tpm_config = (FwCfgTPMConfig) {
2644 .tpmppi_address = cpu_to_le32(TPM_PPI_ADDR_BASE),
2645 .tpm_version = tpm_get_version(tpm),
2646 .tpmppi_version = TPM_PPI_VERSION_1_30
2647 };
2648 fw_cfg_add_file(x86ms->fw_cfg, "etc/tpm/config",
2649 &tpm_config, sizeof tpm_config);
2650 }
2651
2652 vmgenid_dev = find_vmgenid_dev();
2653 if (vmgenid_dev) {
2654 vmgenid_add_fw_cfg(VMGENID(vmgenid_dev), x86ms->fw_cfg,
2655 tables.vmgenid);
2656 }
2657
2658 if (!pcmc->rsdp_in_ram) {
2659 /*
2660 * Keep for compatibility with old machine types.
2661 * Though RSDP is small, its contents isn't immutable, so
2662 * we'll update it along with the rest of tables on guest access.
2663 */
2664 uint32_t rsdp_size = acpi_data_len(tables.rsdp);
2665
2666 build_state->rsdp = g_memdup(tables.rsdp->data, rsdp_size);
2667 fw_cfg_add_file_callback(x86ms->fw_cfg, ACPI_BUILD_RSDP_FILE,
2668 acpi_build_update, NULL, build_state,
2669 build_state->rsdp, rsdp_size, true);
2670 build_state->rsdp_mr = NULL;
2671 } else {
2672 build_state->rsdp = NULL;
2673 build_state->rsdp_mr = acpi_add_rom_blob(acpi_build_update,
2674 build_state, tables.rsdp,
2675 ACPI_BUILD_RSDP_FILE);
2676 }
2677
2678 qemu_register_reset(acpi_build_reset, build_state);
2679 acpi_build_reset(build_state);
2680 vmstate_register(NULL, 0, &vmstate_acpi_build, build_state);
2681
2682 /* Cleanup tables but don't free the memory: we track it
2683 * in build_state.
2684 */
2685 acpi_build_tables_cleanup(&tables, false);
2686 }
AR7 emulation for QEMU