1 /* Support for generating ACPI tables and passing them to Guests
3 * Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
4 * Copyright (C) 2006 Fabrice Bellard
5 * Copyright (C) 2013 Red Hat Inc
7 * Author: Michael S. Tsirkin <mst@redhat.com>
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.
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.
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/>.
23 #include "qemu/osdep.h"
24 #include "acpi-build.h"
26 #include "qemu-common.h"
27 #include "qemu/bitmap.h"
28 #include "qemu/error-report.h"
29 #include "hw/pci/pci.h"
31 #include "hw/i386/pc.h"
32 #include "target-i386/cpu.h"
33 #include "hw/timer/hpet.h"
34 #include "hw/acpi/acpi-defs.h"
35 #include "hw/acpi/acpi.h"
36 #include "hw/nvram/fw_cfg.h"
37 #include "hw/acpi/bios-linker-loader.h"
38 #include "hw/loader.h"
39 #include "hw/isa/isa.h"
40 #include "hw/acpi/memory_hotplug.h"
41 #include "hw/mem/nvdimm.h"
42 #include "sysemu/tpm.h"
43 #include "hw/acpi/tpm.h"
44 #include "sysemu/tpm_backend.h"
45 #include "hw/timer/mc146818rtc_regs.h"
47 /* Supported chipsets: */
48 #include "hw/acpi/piix4.h"
49 #include "hw/acpi/pcihp.h"
50 #include "hw/i386/ich9.h"
51 #include "hw/pci/pci_bus.h"
52 #include "hw/pci-host/q35.h"
53 #include "hw/i386/intel_iommu.h"
54 #include "hw/timer/hpet.h"
56 #include "hw/acpi/aml-build.h"
58 #include "qapi/qmp/qint.h"
59 #include "qom/qom-qobject.h"
61 /* These are used to size the ACPI tables for -M pc-i440fx-1.7 and
62 * -M pc-i440fx-2.0. Even if the actual amount of AML generated grows
63 * a little bit, there should be plenty of free space since the DSDT
64 * shrunk by ~1.5k between QEMU 2.0 and QEMU 2.1.
66 #define ACPI_BUILD_LEGACY_CPU_AML_SIZE 97
67 #define ACPI_BUILD_ALIGN_SIZE 0x1000
69 #define ACPI_BUILD_TABLE_SIZE 0x20000
71 /* #define DEBUG_ACPI_BUILD */
72 #ifdef DEBUG_ACPI_BUILD
73 #define ACPI_BUILD_DPRINTF(fmt, ...) \
74 do {printf("ACPI_BUILD: " fmt, ## __VA_ARGS__); } while (0)
76 #define ACPI_BUILD_DPRINTF(fmt, ...)
79 typedef struct AcpiCpuInfo
{
80 DECLARE_BITMAP(found_cpus
, ACPI_CPU_HOTPLUG_ID_LIMIT
);
83 typedef struct AcpiMcfgInfo
{
88 typedef struct AcpiPmInfo
{
94 uint8_t acpi_enable_cmd
;
95 uint8_t acpi_disable_cmd
;
97 uint32_t gpe0_blk_len
;
99 uint16_t cpu_hp_io_base
;
100 uint16_t cpu_hp_io_len
;
101 uint16_t mem_hp_io_base
;
102 uint16_t mem_hp_io_len
;
103 uint16_t pcihp_io_base
;
104 uint16_t pcihp_io_len
;
107 typedef struct AcpiMiscInfo
{
110 TPMVersion tpm_version
;
111 const unsigned char *dsdt_code
;
113 uint16_t pvpanic_port
;
114 uint16_t applesmc_io_base
;
117 typedef struct AcpiBuildPciBusHotplugState
{
118 GArray
*device_table
;
119 GArray
*notify_table
;
120 struct AcpiBuildPciBusHotplugState
*parent
;
121 bool pcihp_bridge_en
;
122 } AcpiBuildPciBusHotplugState
;
125 int acpi_add_cpu_info(Object
*o
, void *opaque
)
127 AcpiCpuInfo
*cpu
= opaque
;
130 if (object_dynamic_cast(o
, TYPE_CPU
)) {
131 apic_id
= object_property_get_int(o
, "apic-id", NULL
);
132 assert(apic_id
< ACPI_CPU_HOTPLUG_ID_LIMIT
);
134 set_bit(apic_id
, cpu
->found_cpus
);
137 object_child_foreach(o
, acpi_add_cpu_info
, opaque
);
141 static void acpi_get_cpu_info(AcpiCpuInfo
*cpu
)
143 Object
*root
= object_get_root();
145 memset(cpu
->found_cpus
, 0, sizeof cpu
->found_cpus
);
146 object_child_foreach(root
, acpi_add_cpu_info
, cpu
);
149 static void acpi_get_pm_info(AcpiPmInfo
*pm
)
151 Object
*piix
= piix4_pm_find();
152 Object
*lpc
= ich9_lpc_find();
156 pm
->cpu_hp_io_base
= 0;
157 pm
->pcihp_io_base
= 0;
158 pm
->pcihp_io_len
= 0;
161 pm
->cpu_hp_io_base
= PIIX4_CPU_HOTPLUG_IO_BASE
;
163 object_property_get_int(obj
, ACPI_PCIHP_IO_BASE_PROP
, NULL
);
165 object_property_get_int(obj
, ACPI_PCIHP_IO_LEN_PROP
, NULL
);
169 pm
->cpu_hp_io_base
= ICH9_CPU_HOTPLUG_IO_BASE
;
173 pm
->cpu_hp_io_len
= ACPI_GPE_PROC_LEN
;
174 pm
->mem_hp_io_base
= ACPI_MEMORY_HOTPLUG_BASE
;
175 pm
->mem_hp_io_len
= ACPI_MEMORY_HOTPLUG_IO_LEN
;
177 /* Fill in optional s3/s4 related properties */
178 o
= object_property_get_qobject(obj
, ACPI_PM_PROP_S3_DISABLED
, NULL
);
180 pm
->s3_disabled
= qint_get_int(qobject_to_qint(o
));
182 pm
->s3_disabled
= false;
185 o
= object_property_get_qobject(obj
, ACPI_PM_PROP_S4_DISABLED
, NULL
);
187 pm
->s4_disabled
= qint_get_int(qobject_to_qint(o
));
189 pm
->s4_disabled
= false;
192 o
= object_property_get_qobject(obj
, ACPI_PM_PROP_S4_VAL
, NULL
);
194 pm
->s4_val
= qint_get_int(qobject_to_qint(o
));
200 /* Fill in mandatory properties */
201 pm
->sci_int
= object_property_get_int(obj
, ACPI_PM_PROP_SCI_INT
, NULL
);
203 pm
->acpi_enable_cmd
= object_property_get_int(obj
,
204 ACPI_PM_PROP_ACPI_ENABLE_CMD
,
206 pm
->acpi_disable_cmd
= object_property_get_int(obj
,
207 ACPI_PM_PROP_ACPI_DISABLE_CMD
,
209 pm
->io_base
= object_property_get_int(obj
, ACPI_PM_PROP_PM_IO_BASE
,
211 pm
->gpe0_blk
= object_property_get_int(obj
, ACPI_PM_PROP_GPE0_BLK
,
213 pm
->gpe0_blk_len
= object_property_get_int(obj
, ACPI_PM_PROP_GPE0_BLK_LEN
,
215 pm
->pcihp_bridge_en
=
216 object_property_get_bool(obj
, "acpi-pci-hotplug-with-bridge-support",
220 static void acpi_get_misc_info(AcpiMiscInfo
*info
)
222 Object
*piix
= piix4_pm_find();
223 Object
*lpc
= ich9_lpc_find();
224 assert(!!piix
!= !!lpc
);
227 info
->is_piix4
= true;
230 info
->is_piix4
= false;
233 info
->has_hpet
= hpet_find();
234 info
->tpm_version
= tpm_get_version();
235 info
->pvpanic_port
= pvpanic_port();
236 info
->applesmc_io_base
= applesmc_port();
240 * Because of the PXB hosts we cannot simply query TYPE_PCI_HOST_BRIDGE.
241 * On i386 arch we only have two pci hosts, so we can look only for them.
243 static Object
*acpi_get_i386_pci_host(void)
247 host
= OBJECT_CHECK(PCIHostState
,
248 object_resolve_path("/machine/i440fx", NULL
),
249 TYPE_PCI_HOST_BRIDGE
);
251 host
= OBJECT_CHECK(PCIHostState
,
252 object_resolve_path("/machine/q35", NULL
),
253 TYPE_PCI_HOST_BRIDGE
);
259 static void acpi_get_pci_info(PcPciInfo
*info
)
264 pci_host
= acpi_get_i386_pci_host();
267 info
->w32
.begin
= object_property_get_int(pci_host
,
268 PCI_HOST_PROP_PCI_HOLE_START
,
270 info
->w32
.end
= object_property_get_int(pci_host
,
271 PCI_HOST_PROP_PCI_HOLE_END
,
273 info
->w64
.begin
= object_property_get_int(pci_host
,
274 PCI_HOST_PROP_PCI_HOLE64_START
,
276 info
->w64
.end
= object_property_get_int(pci_host
,
277 PCI_HOST_PROP_PCI_HOLE64_END
,
281 #define ACPI_PORT_SMI_CMD 0x00b2 /* TODO: this is APM_CNT_IOPORT */
283 static void acpi_align_size(GArray
*blob
, unsigned align
)
285 /* Align size to multiple of given size. This reduces the chance
286 * we need to change size in the future (breaking cross version migration).
288 g_array_set_size(blob
, ROUND_UP(acpi_data_len(blob
), align
));
293 build_facs(GArray
*table_data
, GArray
*linker
)
295 AcpiFacsDescriptorRev1
*facs
= acpi_data_push(table_data
, sizeof *facs
);
296 memcpy(&facs
->signature
, "FACS", 4);
297 facs
->length
= cpu_to_le32(sizeof(*facs
));
300 /* Load chipset information in FADT */
301 static void fadt_setup(AcpiFadtDescriptorRev1
*fadt
, AcpiPmInfo
*pm
)
305 fadt
->sci_int
= cpu_to_le16(pm
->sci_int
);
306 fadt
->smi_cmd
= cpu_to_le32(ACPI_PORT_SMI_CMD
);
307 fadt
->acpi_enable
= pm
->acpi_enable_cmd
;
308 fadt
->acpi_disable
= pm
->acpi_disable_cmd
;
309 /* EVT, CNT, TMR offset matches hw/acpi/core.c */
310 fadt
->pm1a_evt_blk
= cpu_to_le32(pm
->io_base
);
311 fadt
->pm1a_cnt_blk
= cpu_to_le32(pm
->io_base
+ 0x04);
312 fadt
->pm_tmr_blk
= cpu_to_le32(pm
->io_base
+ 0x08);
313 fadt
->gpe0_blk
= cpu_to_le32(pm
->gpe0_blk
);
314 /* EVT, CNT, TMR length matches hw/acpi/core.c */
315 fadt
->pm1_evt_len
= 4;
316 fadt
->pm1_cnt_len
= 2;
317 fadt
->pm_tmr_len
= 4;
318 fadt
->gpe0_blk_len
= pm
->gpe0_blk_len
;
319 fadt
->plvl2_lat
= cpu_to_le16(0xfff); /* C2 state not supported */
320 fadt
->plvl3_lat
= cpu_to_le16(0xfff); /* C3 state not supported */
321 fadt
->flags
= cpu_to_le32((1 << ACPI_FADT_F_WBINVD
) |
322 (1 << ACPI_FADT_F_PROC_C1
) |
323 (1 << ACPI_FADT_F_SLP_BUTTON
) |
324 (1 << ACPI_FADT_F_RTC_S4
));
325 fadt
->flags
|= cpu_to_le32(1 << ACPI_FADT_F_USE_PLATFORM_CLOCK
);
326 /* APIC destination mode ("Flat Logical") has an upper limit of 8 CPUs
327 * For more than 8 CPUs, "Clustered Logical" mode has to be used
330 fadt
->flags
|= cpu_to_le32(1 << ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL
);
332 fadt
->century
= RTC_CENTURY
;
338 build_fadt(GArray
*table_data
, GArray
*linker
, AcpiPmInfo
*pm
,
339 unsigned facs
, unsigned dsdt
,
340 const char *oem_id
, const char *oem_table_id
)
342 AcpiFadtDescriptorRev1
*fadt
= acpi_data_push(table_data
, sizeof(*fadt
));
344 fadt
->firmware_ctrl
= cpu_to_le32(facs
);
345 /* FACS address to be filled by Guest linker */
346 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_TABLE_FILE
,
347 ACPI_BUILD_TABLE_FILE
,
348 table_data
, &fadt
->firmware_ctrl
,
349 sizeof fadt
->firmware_ctrl
);
351 fadt
->dsdt
= cpu_to_le32(dsdt
);
352 /* DSDT address to be filled by Guest linker */
353 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_TABLE_FILE
,
354 ACPI_BUILD_TABLE_FILE
,
355 table_data
, &fadt
->dsdt
,
358 fadt_setup(fadt
, pm
);
360 build_header(linker
, table_data
,
361 (void *)fadt
, "FACP", sizeof(*fadt
), 1, oem_id
, oem_table_id
);
365 build_madt(GArray
*table_data
, GArray
*linker
, AcpiCpuInfo
*cpu
)
367 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
368 int madt_start
= table_data
->len
;
370 AcpiMultipleApicTable
*madt
;
371 AcpiMadtIoApic
*io_apic
;
372 AcpiMadtIntsrcovr
*intsrcovr
;
373 AcpiMadtLocalNmi
*local_nmi
;
376 madt
= acpi_data_push(table_data
, sizeof *madt
);
377 madt
->local_apic_address
= cpu_to_le32(APIC_DEFAULT_ADDRESS
);
378 madt
->flags
= cpu_to_le32(1);
380 for (i
= 0; i
< pcms
->apic_id_limit
; i
++) {
381 AcpiMadtProcessorApic
*apic
= acpi_data_push(table_data
, sizeof *apic
);
382 apic
->type
= ACPI_APIC_PROCESSOR
;
383 apic
->length
= sizeof(*apic
);
384 apic
->processor_id
= i
;
385 apic
->local_apic_id
= i
;
386 if (test_bit(i
, cpu
->found_cpus
)) {
387 apic
->flags
= cpu_to_le32(1);
389 apic
->flags
= cpu_to_le32(0);
392 io_apic
= acpi_data_push(table_data
, sizeof *io_apic
);
393 io_apic
->type
= ACPI_APIC_IO
;
394 io_apic
->length
= sizeof(*io_apic
);
395 #define ACPI_BUILD_IOAPIC_ID 0x0
396 io_apic
->io_apic_id
= ACPI_BUILD_IOAPIC_ID
;
397 io_apic
->address
= cpu_to_le32(IO_APIC_DEFAULT_ADDRESS
);
398 io_apic
->interrupt
= cpu_to_le32(0);
400 if (pcms
->apic_xrupt_override
) {
401 intsrcovr
= acpi_data_push(table_data
, sizeof *intsrcovr
);
402 intsrcovr
->type
= ACPI_APIC_XRUPT_OVERRIDE
;
403 intsrcovr
->length
= sizeof(*intsrcovr
);
404 intsrcovr
->source
= 0;
405 intsrcovr
->gsi
= cpu_to_le32(2);
406 intsrcovr
->flags
= cpu_to_le16(0); /* conforms to bus specifications */
408 for (i
= 1; i
< 16; i
++) {
409 #define ACPI_BUILD_PCI_IRQS ((1<<5) | (1<<9) | (1<<10) | (1<<11))
410 if (!(ACPI_BUILD_PCI_IRQS
& (1 << i
))) {
411 /* No need for a INT source override structure. */
414 intsrcovr
= acpi_data_push(table_data
, sizeof *intsrcovr
);
415 intsrcovr
->type
= ACPI_APIC_XRUPT_OVERRIDE
;
416 intsrcovr
->length
= sizeof(*intsrcovr
);
417 intsrcovr
->source
= i
;
418 intsrcovr
->gsi
= cpu_to_le32(i
);
419 intsrcovr
->flags
= cpu_to_le16(0xd); /* active high, level triggered */
422 local_nmi
= acpi_data_push(table_data
, sizeof *local_nmi
);
423 local_nmi
->type
= ACPI_APIC_LOCAL_NMI
;
424 local_nmi
->length
= sizeof(*local_nmi
);
425 local_nmi
->processor_id
= 0xff; /* all processors */
426 local_nmi
->flags
= cpu_to_le16(0);
427 local_nmi
->lint
= 1; /* ACPI_LINT1 */
429 build_header(linker
, table_data
,
430 (void *)(table_data
->data
+ madt_start
), "APIC",
431 table_data
->len
- madt_start
, 1, NULL
, NULL
);
434 /* Assign BSEL property to all buses. In the future, this can be changed
435 * to only assign to buses that support hotplug.
437 static void *acpi_set_bsel(PCIBus
*bus
, void *opaque
)
439 unsigned *bsel_alloc
= opaque
;
442 if (qbus_is_hotpluggable(BUS(bus
))) {
443 bus_bsel
= g_malloc(sizeof *bus_bsel
);
445 *bus_bsel
= (*bsel_alloc
)++;
446 object_property_add_uint32_ptr(OBJECT(bus
), ACPI_PCIHP_PROP_BSEL
,
453 static void acpi_set_pci_info(void)
455 PCIBus
*bus
= find_i440fx(); /* TODO: Q35 support */
456 unsigned bsel_alloc
= 0;
459 /* Scan all PCI buses. Set property to enable acpi based hotplug. */
460 pci_for_each_bus_depth_first(bus
, acpi_set_bsel
, NULL
, &bsel_alloc
);
464 static void build_append_pcihp_notify_entry(Aml
*method
, int slot
)
467 int32_t devfn
= PCI_DEVFN(slot
, 0);
469 if_ctx
= aml_if(aml_and(aml_arg(0), aml_int(0x1U
<< slot
), NULL
));
470 aml_append(if_ctx
, aml_notify(aml_name("S%.02X", devfn
), aml_arg(1)));
471 aml_append(method
, if_ctx
);
474 static void build_append_pci_bus_devices(Aml
*parent_scope
, PCIBus
*bus
,
475 bool pcihp_bridge_en
)
477 Aml
*dev
, *notify_method
, *method
;
482 bsel
= object_property_get_qobject(OBJECT(bus
), ACPI_PCIHP_PROP_BSEL
, NULL
);
484 int64_t bsel_val
= qint_get_int(qobject_to_qint(bsel
));
486 aml_append(parent_scope
, aml_name_decl("BSEL", aml_int(bsel_val
)));
487 notify_method
= aml_method("DVNT", 2, AML_NOTSERIALIZED
);
490 for (i
= 0; i
< ARRAY_SIZE(bus
->devices
); i
+= PCI_FUNC_MAX
) {
493 PCIDevice
*pdev
= bus
->devices
[i
];
494 int slot
= PCI_SLOT(i
);
495 bool hotplug_enabled_dev
;
499 if (bsel
) { /* add hotplug slots for non present devices */
500 dev
= aml_device("S%.02X", PCI_DEVFN(slot
, 0));
501 aml_append(dev
, aml_name_decl("_SUN", aml_int(slot
)));
502 aml_append(dev
, aml_name_decl("_ADR", aml_int(slot
<< 16)));
503 method
= aml_method("_EJ0", 1, AML_NOTSERIALIZED
);
505 aml_call2("PCEJ", aml_name("BSEL"), aml_name("_SUN"))
507 aml_append(dev
, method
);
508 aml_append(parent_scope
, dev
);
510 build_append_pcihp_notify_entry(notify_method
, slot
);
515 pc
= PCI_DEVICE_GET_CLASS(pdev
);
516 dc
= DEVICE_GET_CLASS(pdev
);
518 /* When hotplug for bridges is enabled, bridges are
519 * described in ACPI separately (see build_pci_bus_end).
520 * In this case they aren't themselves hot-pluggable.
521 * Hotplugged bridges *are* hot-pluggable.
523 bridge_in_acpi
= pc
->is_bridge
&& pcihp_bridge_en
&&
524 !DEVICE(pdev
)->hotplugged
;
526 hotplug_enabled_dev
= bsel
&& dc
->hotpluggable
&& !bridge_in_acpi
;
528 if (pc
->class_id
== PCI_CLASS_BRIDGE_ISA
) {
532 /* start to compose PCI slot descriptor */
533 dev
= aml_device("S%.02X", PCI_DEVFN(slot
, 0));
534 aml_append(dev
, aml_name_decl("_ADR", aml_int(slot
<< 16)));
536 if (pc
->class_id
== PCI_CLASS_DISPLAY_VGA
) {
537 /* add VGA specific AML methods */
540 if (object_dynamic_cast(OBJECT(pdev
), "qxl-vga")) {
546 method
= aml_method("_S1D", 0, AML_NOTSERIALIZED
);
547 aml_append(method
, aml_return(aml_int(0)));
548 aml_append(dev
, method
);
550 method
= aml_method("_S2D", 0, AML_NOTSERIALIZED
);
551 aml_append(method
, aml_return(aml_int(0)));
552 aml_append(dev
, method
);
554 method
= aml_method("_S3D", 0, AML_NOTSERIALIZED
);
555 aml_append(method
, aml_return(aml_int(s3d
)));
556 aml_append(dev
, method
);
557 } else if (hotplug_enabled_dev
) {
558 /* add _SUN/_EJ0 to make slot hotpluggable */
559 aml_append(dev
, aml_name_decl("_SUN", aml_int(slot
)));
561 method
= aml_method("_EJ0", 1, AML_NOTSERIALIZED
);
563 aml_call2("PCEJ", aml_name("BSEL"), aml_name("_SUN"))
565 aml_append(dev
, method
);
568 build_append_pcihp_notify_entry(notify_method
, slot
);
570 } else if (bridge_in_acpi
) {
572 * device is coldplugged bridge,
573 * add child device descriptions into its scope
575 PCIBus
*sec_bus
= pci_bridge_get_sec_bus(PCI_BRIDGE(pdev
));
577 build_append_pci_bus_devices(dev
, sec_bus
, pcihp_bridge_en
);
579 /* slot descriptor has been composed, add it into parent context */
580 aml_append(parent_scope
, dev
);
584 aml_append(parent_scope
, notify_method
);
587 /* Append PCNT method to notify about events on local and child buses.
588 * Add unconditionally for root since DSDT expects it.
590 method
= aml_method("PCNT", 0, AML_NOTSERIALIZED
);
592 /* If bus supports hotplug select it and notify about local events */
594 int64_t bsel_val
= qint_get_int(qobject_to_qint(bsel
));
595 aml_append(method
, aml_store(aml_int(bsel_val
), aml_name("BNUM")));
597 aml_call2("DVNT", aml_name("PCIU"), aml_int(1) /* Device Check */)
600 aml_call2("DVNT", aml_name("PCID"), aml_int(3)/* Eject Request */)
604 /* Notify about child bus events in any case */
605 if (pcihp_bridge_en
) {
606 QLIST_FOREACH(sec
, &bus
->child
, sibling
) {
607 int32_t devfn
= sec
->parent_dev
->devfn
;
609 aml_append(method
, aml_name("^S%.02X.PCNT", devfn
));
612 aml_append(parent_scope
, method
);
613 qobject_decref(bsel
);
618 * @link_name: link name for PCI route entry
620 * build AML package containing a PCI route entry for @link_name
622 static Aml
*build_prt_entry(const char *link_name
)
624 Aml
*a_zero
= aml_int(0);
625 Aml
*pkg
= aml_package(4);
626 aml_append(pkg
, a_zero
);
627 aml_append(pkg
, a_zero
);
628 aml_append(pkg
, aml_name("%s", link_name
));
629 aml_append(pkg
, a_zero
);
634 * initialize_route - Initialize the interrupt routing rule
635 * through a specific LINK:
636 * if (lnk_idx == idx)
637 * route using link 'link_name'
639 static Aml
*initialize_route(Aml
*route
, const char *link_name
,
640 Aml
*lnk_idx
, int idx
)
642 Aml
*if_ctx
= aml_if(aml_equal(lnk_idx
, aml_int(idx
)));
643 Aml
*pkg
= build_prt_entry(link_name
);
645 aml_append(if_ctx
, aml_store(pkg
, route
));
651 * build_prt - Define interrupt rounting rules
653 * Returns an array of 128 routes, one for each device,
654 * based on device location.
655 * The main goal is to equaly distribute the interrupts
656 * over the 4 existing ACPI links (works only for i440fx).
657 * The hash function is (slot + pin) & 3 -> "LNK[D|A|B|C]".
660 static Aml
*build_prt(bool is_pci0_prt
)
662 Aml
*method
, *while_ctx
, *pin
, *res
;
664 method
= aml_method("_PRT", 0, AML_NOTSERIALIZED
);
667 aml_append(method
, aml_store(aml_package(128), res
));
668 aml_append(method
, aml_store(aml_int(0), pin
));
670 /* while (pin < 128) */
671 while_ctx
= aml_while(aml_lless(pin
, aml_int(128)));
673 Aml
*slot
= aml_local(2);
674 Aml
*lnk_idx
= aml_local(3);
675 Aml
*route
= aml_local(4);
677 /* slot = pin >> 2 */
678 aml_append(while_ctx
,
679 aml_store(aml_shiftright(pin
, aml_int(2), NULL
), slot
));
680 /* lnk_idx = (slot + pin) & 3 */
681 aml_append(while_ctx
,
682 aml_store(aml_and(aml_add(pin
, slot
, NULL
), aml_int(3), NULL
),
685 /* route[2] = "LNK[D|A|B|C]", selection based on pin % 3 */
686 aml_append(while_ctx
, initialize_route(route
, "LNKD", lnk_idx
, 0));
688 Aml
*if_device_1
, *if_pin_4
, *else_pin_4
;
690 /* device 1 is the power-management device, needs SCI */
691 if_device_1
= aml_if(aml_equal(lnk_idx
, aml_int(1)));
693 if_pin_4
= aml_if(aml_equal(pin
, aml_int(4)));
696 aml_store(build_prt_entry("LNKS"), route
));
698 aml_append(if_device_1
, if_pin_4
);
699 else_pin_4
= aml_else();
701 aml_append(else_pin_4
,
702 aml_store(build_prt_entry("LNKA"), route
));
704 aml_append(if_device_1
, else_pin_4
);
706 aml_append(while_ctx
, if_device_1
);
708 aml_append(while_ctx
, initialize_route(route
, "LNKA", lnk_idx
, 1));
710 aml_append(while_ctx
, initialize_route(route
, "LNKB", lnk_idx
, 2));
711 aml_append(while_ctx
, initialize_route(route
, "LNKC", lnk_idx
, 3));
713 /* route[0] = 0x[slot]FFFF */
714 aml_append(while_ctx
,
715 aml_store(aml_or(aml_shiftleft(slot
, aml_int(16)), aml_int(0xFFFF),
717 aml_index(route
, aml_int(0))));
718 /* route[1] = pin & 3 */
719 aml_append(while_ctx
,
720 aml_store(aml_and(pin
, aml_int(3), NULL
),
721 aml_index(route
, aml_int(1))));
722 /* res[pin] = route */
723 aml_append(while_ctx
, aml_store(route
, aml_index(res
, pin
)));
725 aml_append(while_ctx
, aml_increment(pin
));
727 aml_append(method
, while_ctx
);
729 aml_append(method
, aml_return(res
));
734 typedef struct CrsRangeEntry
{
739 static void crs_range_insert(GPtrArray
*ranges
, uint64_t base
, uint64_t limit
)
741 CrsRangeEntry
*entry
;
743 entry
= g_malloc(sizeof(*entry
));
745 entry
->limit
= limit
;
747 g_ptr_array_add(ranges
, entry
);
750 static void crs_range_free(gpointer data
)
752 CrsRangeEntry
*entry
= (CrsRangeEntry
*)data
;
756 static gint
crs_range_compare(gconstpointer a
, gconstpointer b
)
758 CrsRangeEntry
*entry_a
= *(CrsRangeEntry
**)a
;
759 CrsRangeEntry
*entry_b
= *(CrsRangeEntry
**)b
;
761 return (int64_t)entry_a
->base
- (int64_t)entry_b
->base
;
765 * crs_replace_with_free_ranges - given the 'used' ranges within [start - end]
766 * interval, computes the 'free' ranges from the same interval.
767 * Example: If the input array is { [a1 - a2],[b1 - b2] }, the function
768 * will return { [base - a1], [a2 - b1], [b2 - limit] }.
770 static void crs_replace_with_free_ranges(GPtrArray
*ranges
,
771 uint64_t start
, uint64_t end
)
773 GPtrArray
*free_ranges
= g_ptr_array_new_with_free_func(crs_range_free
);
774 uint64_t free_base
= start
;
777 g_ptr_array_sort(ranges
, crs_range_compare
);
778 for (i
= 0; i
< ranges
->len
; i
++) {
779 CrsRangeEntry
*used
= g_ptr_array_index(ranges
, i
);
781 if (free_base
< used
->base
) {
782 crs_range_insert(free_ranges
, free_base
, used
->base
- 1);
785 free_base
= used
->limit
+ 1;
788 if (free_base
< end
) {
789 crs_range_insert(free_ranges
, free_base
, end
);
792 g_ptr_array_set_size(ranges
, 0);
793 for (i
= 0; i
< free_ranges
->len
; i
++) {
794 g_ptr_array_add(ranges
, g_ptr_array_index(free_ranges
, i
));
797 g_ptr_array_free(free_ranges
, false);
801 * crs_range_merge - merges adjacent ranges in the given array.
802 * Array elements are deleted and replaced with the merged ranges.
804 static void crs_range_merge(GPtrArray
*range
)
806 GPtrArray
*tmp
= g_ptr_array_new_with_free_func(crs_range_free
);
807 CrsRangeEntry
*entry
;
808 uint64_t range_base
, range_limit
;
815 g_ptr_array_sort(range
, crs_range_compare
);
817 entry
= g_ptr_array_index(range
, 0);
818 range_base
= entry
->base
;
819 range_limit
= entry
->limit
;
820 for (i
= 1; i
< range
->len
; i
++) {
821 entry
= g_ptr_array_index(range
, i
);
822 if (entry
->base
- 1 == range_limit
) {
823 range_limit
= entry
->limit
;
825 crs_range_insert(tmp
, range_base
, range_limit
);
826 range_base
= entry
->base
;
827 range_limit
= entry
->limit
;
830 crs_range_insert(tmp
, range_base
, range_limit
);
832 g_ptr_array_set_size(range
, 0);
833 for (i
= 0; i
< tmp
->len
; i
++) {
834 entry
= g_ptr_array_index(tmp
, i
);
835 crs_range_insert(range
, entry
->base
, entry
->limit
);
837 g_ptr_array_free(tmp
, true);
840 static Aml
*build_crs(PCIHostState
*host
,
841 GPtrArray
*io_ranges
, GPtrArray
*mem_ranges
)
843 Aml
*crs
= aml_resource_template();
844 GPtrArray
*host_io_ranges
= g_ptr_array_new_with_free_func(crs_range_free
);
845 GPtrArray
*host_mem_ranges
= g_ptr_array_new_with_free_func(crs_range_free
);
846 CrsRangeEntry
*entry
;
847 uint8_t max_bus
= pci_bus_num(host
->bus
);
852 for (devfn
= 0; devfn
< ARRAY_SIZE(host
->bus
->devices
); devfn
++) {
853 uint64_t range_base
, range_limit
;
854 PCIDevice
*dev
= host
->bus
->devices
[devfn
];
860 for (i
= 0; i
< PCI_NUM_REGIONS
; i
++) {
861 PCIIORegion
*r
= &dev
->io_regions
[i
];
863 range_base
= r
->addr
;
864 range_limit
= r
->addr
+ r
->size
- 1;
867 * Work-around for old bioses
868 * that do not support multiple root buses
870 if (!range_base
|| range_base
> range_limit
) {
874 if (r
->type
& PCI_BASE_ADDRESS_SPACE_IO
) {
875 crs_range_insert(host_io_ranges
, range_base
, range_limit
);
876 } else { /* "memory" */
877 crs_range_insert(host_mem_ranges
, range_base
, range_limit
);
881 type
= dev
->config
[PCI_HEADER_TYPE
] & ~PCI_HEADER_TYPE_MULTI_FUNCTION
;
882 if (type
== PCI_HEADER_TYPE_BRIDGE
) {
883 uint8_t subordinate
= dev
->config
[PCI_SUBORDINATE_BUS
];
884 if (subordinate
> max_bus
) {
885 max_bus
= subordinate
;
888 range_base
= pci_bridge_get_base(dev
, PCI_BASE_ADDRESS_SPACE_IO
);
889 range_limit
= pci_bridge_get_limit(dev
, PCI_BASE_ADDRESS_SPACE_IO
);
892 * Work-around for old bioses
893 * that do not support multiple root buses
895 if (range_base
&& range_base
<= range_limit
) {
896 crs_range_insert(host_io_ranges
, range_base
, range_limit
);
900 pci_bridge_get_base(dev
, PCI_BASE_ADDRESS_SPACE_MEMORY
);
902 pci_bridge_get_limit(dev
, PCI_BASE_ADDRESS_SPACE_MEMORY
);
905 * Work-around for old bioses
906 * that do not support multiple root buses
908 if (range_base
&& range_base
<= range_limit
) {
909 crs_range_insert(host_mem_ranges
, range_base
, range_limit
);
913 pci_bridge_get_base(dev
, PCI_BASE_ADDRESS_MEM_PREFETCH
);
915 pci_bridge_get_limit(dev
, PCI_BASE_ADDRESS_MEM_PREFETCH
);
918 * Work-around for old bioses
919 * that do not support multiple root buses
921 if (range_base
&& range_base
<= range_limit
) {
922 crs_range_insert(host_mem_ranges
, range_base
, range_limit
);
927 crs_range_merge(host_io_ranges
);
928 for (i
= 0; i
< host_io_ranges
->len
; i
++) {
929 entry
= g_ptr_array_index(host_io_ranges
, i
);
931 aml_word_io(AML_MIN_FIXED
, AML_MAX_FIXED
,
932 AML_POS_DECODE
, AML_ENTIRE_RANGE
,
933 0, entry
->base
, entry
->limit
, 0,
934 entry
->limit
- entry
->base
+ 1));
935 crs_range_insert(io_ranges
, entry
->base
, entry
->limit
);
937 g_ptr_array_free(host_io_ranges
, true);
939 crs_range_merge(host_mem_ranges
);
940 for (i
= 0; i
< host_mem_ranges
->len
; i
++) {
941 entry
= g_ptr_array_index(host_mem_ranges
, i
);
943 aml_dword_memory(AML_POS_DECODE
, AML_MIN_FIXED
,
944 AML_MAX_FIXED
, AML_NON_CACHEABLE
,
946 0, entry
->base
, entry
->limit
, 0,
947 entry
->limit
- entry
->base
+ 1));
948 crs_range_insert(mem_ranges
, entry
->base
, entry
->limit
);
950 g_ptr_array_free(host_mem_ranges
, true);
953 aml_word_bus_number(AML_MIN_FIXED
, AML_MAX_FIXED
, AML_POS_DECODE
,
955 pci_bus_num(host
->bus
),
958 max_bus
- pci_bus_num(host
->bus
) + 1));
963 static void build_processor_devices(Aml
*sb_scope
, unsigned acpi_cpus
,
964 AcpiCpuInfo
*cpu
, AcpiPmInfo
*pm
)
974 /* The current AML generator can cover the APIC ID range [0..255],
975 * inclusive, for VCPU hotplug. */
976 QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT
> 256);
977 g_assert(acpi_cpus
<= ACPI_CPU_HOTPLUG_ID_LIMIT
);
979 /* create PCI0.PRES device and its _CRS to reserve CPU hotplug MMIO */
980 dev
= aml_device("PCI0." stringify(CPU_HOTPLUG_RESOURCE_DEVICE
));
981 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0A06")));
983 aml_name_decl("_UID", aml_string("CPU Hotplug resources"))
985 /* device present, functioning, decoding, not shown in UI */
986 aml_append(dev
, aml_name_decl("_STA", aml_int(0xB)));
987 crs
= aml_resource_template();
989 aml_io(AML_DECODE16
, pm
->cpu_hp_io_base
, pm
->cpu_hp_io_base
, 1,
992 aml_append(dev
, aml_name_decl("_CRS", crs
));
993 aml_append(sb_scope
, dev
);
994 /* declare CPU hotplug MMIO region and PRS field to access it */
995 aml_append(sb_scope
, aml_operation_region(
996 "PRST", AML_SYSTEM_IO
, aml_int(pm
->cpu_hp_io_base
), pm
->cpu_hp_io_len
));
997 field
= aml_field("PRST", AML_BYTE_ACC
, AML_NOLOCK
, AML_PRESERVE
);
998 aml_append(field
, aml_named_field("PRS", 256));
999 aml_append(sb_scope
, field
);
1001 /* build Processor object for each processor */
1002 for (i
= 0; i
< acpi_cpus
; i
++) {
1003 dev
= aml_processor(i
, 0, 0, "CP%.02X", i
);
1005 method
= aml_method("_MAT", 0, AML_NOTSERIALIZED
);
1007 aml_return(aml_call1(CPU_MAT_METHOD
, aml_int(i
))));
1008 aml_append(dev
, method
);
1010 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1012 aml_return(aml_call1(CPU_STATUS_METHOD
, aml_int(i
))));
1013 aml_append(dev
, method
);
1015 method
= aml_method("_EJ0", 1, AML_NOTSERIALIZED
);
1017 aml_return(aml_call2(CPU_EJECT_METHOD
, aml_int(i
), aml_arg(0)))
1019 aml_append(dev
, method
);
1021 aml_append(sb_scope
, dev
);
1025 * Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
1027 /* Arg0 = Processor ID = APIC ID */
1028 method
= aml_method(AML_NOTIFY_METHOD
, 2, AML_NOTSERIALIZED
);
1029 for (i
= 0; i
< acpi_cpus
; i
++) {
1030 ifctx
= aml_if(aml_equal(aml_arg(0), aml_int(i
)));
1032 aml_notify(aml_name("CP%.02X", i
), aml_arg(1))
1034 aml_append(method
, ifctx
);
1036 aml_append(sb_scope
, method
);
1038 /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })"
1040 * Note: The ability to create variable-sized packages was first
1041 * introduced in ACPI 2.0. ACPI 1.0 only allowed fixed-size packages
1042 * ith up to 255 elements. Windows guests up to win2k8 fail when
1043 * VarPackageOp is used.
1045 pkg
= acpi_cpus
<= 255 ? aml_package(acpi_cpus
) :
1046 aml_varpackage(acpi_cpus
);
1048 for (i
= 0; i
< acpi_cpus
; i
++) {
1049 uint8_t b
= test_bit(i
, cpu
->found_cpus
) ? 0x01 : 0x00;
1050 aml_append(pkg
, aml_int(b
));
1052 aml_append(sb_scope
, aml_name_decl(CPU_ON_BITMAP
, pkg
));
1055 static void build_memory_devices(Aml
*sb_scope
, int nr_mem
,
1056 uint16_t io_base
, uint16_t io_len
)
1066 /* build memory devices */
1067 assert(nr_mem
<= ACPI_MAX_RAM_SLOTS
);
1068 scope
= aml_scope("\\_SB.PCI0." MEMORY_HOTPLUG_DEVICE
);
1070 aml_name_decl(MEMORY_SLOTS_NUMBER
, aml_int(nr_mem
))
1073 crs
= aml_resource_template();
1075 aml_io(AML_DECODE16
, io_base
, io_base
, 0, io_len
)
1077 aml_append(scope
, aml_name_decl("_CRS", crs
));
1079 aml_append(scope
, aml_operation_region(
1080 MEMORY_HOTPLUG_IO_REGION
, AML_SYSTEM_IO
,
1081 aml_int(io_base
), io_len
)
1084 field
= aml_field(MEMORY_HOTPLUG_IO_REGION
, AML_DWORD_ACC
,
1085 AML_NOLOCK
, AML_PRESERVE
);
1086 aml_append(field
, /* read only */
1087 aml_named_field(MEMORY_SLOT_ADDR_LOW
, 32));
1088 aml_append(field
, /* read only */
1089 aml_named_field(MEMORY_SLOT_ADDR_HIGH
, 32));
1090 aml_append(field
, /* read only */
1091 aml_named_field(MEMORY_SLOT_SIZE_LOW
, 32));
1092 aml_append(field
, /* read only */
1093 aml_named_field(MEMORY_SLOT_SIZE_HIGH
, 32));
1094 aml_append(field
, /* read only */
1095 aml_named_field(MEMORY_SLOT_PROXIMITY
, 32));
1096 aml_append(scope
, field
);
1098 field
= aml_field(MEMORY_HOTPLUG_IO_REGION
, AML_BYTE_ACC
,
1099 AML_NOLOCK
, AML_WRITE_AS_ZEROS
);
1100 aml_append(field
, aml_reserved_field(160 /* bits, Offset(20) */));
1101 aml_append(field
, /* 1 if enabled, read only */
1102 aml_named_field(MEMORY_SLOT_ENABLED
, 1));
1104 /*(read) 1 if has a insert event. (write) 1 to clear event */
1105 aml_named_field(MEMORY_SLOT_INSERT_EVENT
, 1));
1107 /* (read) 1 if has a remove event. (write) 1 to clear event */
1108 aml_named_field(MEMORY_SLOT_REMOVE_EVENT
, 1));
1110 /* initiates device eject, write only */
1111 aml_named_field(MEMORY_SLOT_EJECT
, 1));
1112 aml_append(scope
, field
);
1114 field
= aml_field(MEMORY_HOTPLUG_IO_REGION
, AML_DWORD_ACC
,
1115 AML_NOLOCK
, AML_PRESERVE
);
1116 aml_append(field
, /* DIMM selector, write only */
1117 aml_named_field(MEMORY_SLOT_SLECTOR
, 32));
1118 aml_append(field
, /* _OST event code, write only */
1119 aml_named_field(MEMORY_SLOT_OST_EVENT
, 32));
1120 aml_append(field
, /* _OST status code, write only */
1121 aml_named_field(MEMORY_SLOT_OST_STATUS
, 32));
1122 aml_append(scope
, field
);
1123 aml_append(sb_scope
, scope
);
1125 for (i
= 0; i
< nr_mem
; i
++) {
1126 #define BASEPATH "\\_SB.PCI0." MEMORY_HOTPLUG_DEVICE "."
1129 dev
= aml_device("MP%02X", i
);
1130 aml_append(dev
, aml_name_decl("_UID", aml_string("0x%02X", i
)));
1131 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0C80")));
1133 method
= aml_method("_CRS", 0, AML_NOTSERIALIZED
);
1134 s
= BASEPATH MEMORY_SLOT_CRS_METHOD
;
1135 aml_append(method
, aml_return(aml_call1(s
, aml_name("_UID"))));
1136 aml_append(dev
, method
);
1138 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1139 s
= BASEPATH MEMORY_SLOT_STATUS_METHOD
;
1140 aml_append(method
, aml_return(aml_call1(s
, aml_name("_UID"))));
1141 aml_append(dev
, method
);
1143 method
= aml_method("_PXM", 0, AML_NOTSERIALIZED
);
1144 s
= BASEPATH MEMORY_SLOT_PROXIMITY_METHOD
;
1145 aml_append(method
, aml_return(aml_call1(s
, aml_name("_UID"))));
1146 aml_append(dev
, method
);
1148 method
= aml_method("_OST", 3, AML_NOTSERIALIZED
);
1149 s
= BASEPATH MEMORY_SLOT_OST_METHOD
;
1151 aml_append(method
, aml_return(aml_call4(
1152 s
, aml_name("_UID"), aml_arg(0), aml_arg(1), aml_arg(2)
1154 aml_append(dev
, method
);
1156 method
= aml_method("_EJ0", 1, AML_NOTSERIALIZED
);
1157 s
= BASEPATH MEMORY_SLOT_EJECT_METHOD
;
1158 aml_append(method
, aml_return(aml_call2(
1159 s
, aml_name("_UID"), aml_arg(0))));
1160 aml_append(dev
, method
);
1162 aml_append(sb_scope
, dev
);
1165 /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {
1166 * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ... }
1168 method
= aml_method(MEMORY_SLOT_NOTIFY_METHOD
, 2, AML_NOTSERIALIZED
);
1169 for (i
= 0; i
< nr_mem
; i
++) {
1170 ifctx
= aml_if(aml_equal(aml_arg(0), aml_int(i
)));
1172 aml_notify(aml_name("MP%.02X", i
), aml_arg(1))
1174 aml_append(method
, ifctx
);
1176 aml_append(sb_scope
, method
);
1179 static void build_hpet_aml(Aml
*table
)
1185 Aml
*scope
= aml_scope("_SB");
1186 Aml
*dev
= aml_device("HPET");
1187 Aml
*zero
= aml_int(0);
1188 Aml
*id
= aml_local(0);
1189 Aml
*period
= aml_local(1);
1191 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0103")));
1192 aml_append(dev
, aml_name_decl("_UID", zero
));
1195 aml_operation_region("HPTM", AML_SYSTEM_MEMORY
, aml_int(HPET_BASE
),
1197 field
= aml_field("HPTM", AML_DWORD_ACC
, AML_LOCK
, AML_PRESERVE
);
1198 aml_append(field
, aml_named_field("VEND", 32));
1199 aml_append(field
, aml_named_field("PRD", 32));
1200 aml_append(dev
, field
);
1202 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1203 aml_append(method
, aml_store(aml_name("VEND"), id
));
1204 aml_append(method
, aml_store(aml_name("PRD"), period
));
1205 aml_append(method
, aml_shiftright(id
, aml_int(16), id
));
1206 if_ctx
= aml_if(aml_lor(aml_equal(id
, zero
),
1207 aml_equal(id
, aml_int(0xffff))));
1209 aml_append(if_ctx
, aml_return(zero
));
1211 aml_append(method
, if_ctx
);
1213 if_ctx
= aml_if(aml_lor(aml_equal(period
, zero
),
1214 aml_lgreater(period
, aml_int(100000000))));
1216 aml_append(if_ctx
, aml_return(zero
));
1218 aml_append(method
, if_ctx
);
1220 aml_append(method
, aml_return(aml_int(0x0F)));
1221 aml_append(dev
, method
);
1223 crs
= aml_resource_template();
1224 aml_append(crs
, aml_memory32_fixed(HPET_BASE
, HPET_LEN
, AML_READ_ONLY
));
1225 aml_append(dev
, aml_name_decl("_CRS", crs
));
1227 aml_append(scope
, dev
);
1228 aml_append(table
, scope
);
1231 static Aml
*build_fdc_device_aml(void)
1238 Aml
*zero
= aml_int(0);
1239 Aml
*is_present
= aml_local(0);
1241 dev
= aml_device("FDC0");
1242 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0700")));
1244 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1245 aml_append(method
, aml_store(aml_name("FDEN"), is_present
));
1246 if_ctx
= aml_if(aml_equal(is_present
, zero
));
1248 aml_append(if_ctx
, aml_return(aml_int(0x00)));
1250 aml_append(method
, if_ctx
);
1251 else_ctx
= aml_else();
1253 aml_append(else_ctx
, aml_return(aml_int(0x0f)));
1255 aml_append(method
, else_ctx
);
1256 aml_append(dev
, method
);
1258 crs
= aml_resource_template();
1259 aml_append(crs
, aml_io(AML_DECODE16
, 0x03F2, 0x03F2, 0x00, 0x04));
1260 aml_append(crs
, aml_io(AML_DECODE16
, 0x03F7, 0x03F7, 0x00, 0x01));
1261 aml_append(crs
, aml_irq_no_flags(6));
1263 aml_dma(AML_COMPATIBILITY
, AML_NOTBUSMASTER
, AML_TRANSFER8
, 2));
1264 aml_append(dev
, aml_name_decl("_CRS", crs
));
1269 static Aml
*build_rtc_device_aml(void)
1274 dev
= aml_device("RTC");
1275 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0B00")));
1276 crs
= aml_resource_template();
1277 aml_append(crs
, aml_io(AML_DECODE16
, 0x0070, 0x0070, 0x10, 0x02));
1278 aml_append(crs
, aml_irq_no_flags(8));
1279 aml_append(crs
, aml_io(AML_DECODE16
, 0x0072, 0x0072, 0x02, 0x06));
1280 aml_append(dev
, aml_name_decl("_CRS", crs
));
1285 static Aml
*build_kbd_device_aml(void)
1291 dev
= aml_device("KBD");
1292 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0303")));
1294 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1295 aml_append(method
, aml_return(aml_int(0x0f)));
1296 aml_append(dev
, method
);
1298 crs
= aml_resource_template();
1299 aml_append(crs
, aml_io(AML_DECODE16
, 0x0060, 0x0060, 0x01, 0x01));
1300 aml_append(crs
, aml_io(AML_DECODE16
, 0x0064, 0x0064, 0x01, 0x01));
1301 aml_append(crs
, aml_irq_no_flags(1));
1302 aml_append(dev
, aml_name_decl("_CRS", crs
));
1307 static Aml
*build_mouse_device_aml(void)
1313 dev
= aml_device("MOU");
1314 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0F13")));
1316 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1317 aml_append(method
, aml_return(aml_int(0x0f)));
1318 aml_append(dev
, method
);
1320 crs
= aml_resource_template();
1321 aml_append(crs
, aml_irq_no_flags(12));
1322 aml_append(dev
, aml_name_decl("_CRS", crs
));
1327 static Aml
*build_lpt_device_aml(void)
1334 Aml
*zero
= aml_int(0);
1335 Aml
*is_present
= aml_local(0);
1337 dev
= aml_device("LPT");
1338 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0400")));
1340 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1341 aml_append(method
, aml_store(aml_name("LPEN"), is_present
));
1342 if_ctx
= aml_if(aml_equal(is_present
, zero
));
1344 aml_append(if_ctx
, aml_return(aml_int(0x00)));
1346 aml_append(method
, if_ctx
);
1347 else_ctx
= aml_else();
1349 aml_append(else_ctx
, aml_return(aml_int(0x0f)));
1351 aml_append(method
, else_ctx
);
1352 aml_append(dev
, method
);
1354 crs
= aml_resource_template();
1355 aml_append(crs
, aml_io(AML_DECODE16
, 0x0378, 0x0378, 0x08, 0x08));
1356 aml_append(crs
, aml_irq_no_flags(7));
1357 aml_append(dev
, aml_name_decl("_CRS", crs
));
1362 static Aml
*build_com_device_aml(uint8_t uid
)
1369 Aml
*zero
= aml_int(0);
1370 Aml
*is_present
= aml_local(0);
1371 const char *enabled_field
= "CAEN";
1373 uint16_t io_port
= 0x03F8;
1375 assert(uid
== 1 || uid
== 2);
1377 enabled_field
= "CBEN";
1382 dev
= aml_device("COM%d", uid
);
1383 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0501")));
1384 aml_append(dev
, aml_name_decl("_UID", aml_int(uid
)));
1386 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1387 aml_append(method
, aml_store(aml_name("%s", enabled_field
), is_present
));
1388 if_ctx
= aml_if(aml_equal(is_present
, zero
));
1390 aml_append(if_ctx
, aml_return(aml_int(0x00)));
1392 aml_append(method
, if_ctx
);
1393 else_ctx
= aml_else();
1395 aml_append(else_ctx
, aml_return(aml_int(0x0f)));
1397 aml_append(method
, else_ctx
);
1398 aml_append(dev
, method
);
1400 crs
= aml_resource_template();
1401 aml_append(crs
, aml_io(AML_DECODE16
, io_port
, io_port
, 0x00, 0x08));
1402 aml_append(crs
, aml_irq_no_flags(irq
));
1403 aml_append(dev
, aml_name_decl("_CRS", crs
));
1408 static void build_isa_devices_aml(Aml
*table
)
1410 Aml
*scope
= aml_scope("_SB.PCI0.ISA");
1412 aml_append(scope
, build_rtc_device_aml());
1413 aml_append(scope
, build_kbd_device_aml());
1414 aml_append(scope
, build_mouse_device_aml());
1415 aml_append(scope
, build_fdc_device_aml());
1416 aml_append(scope
, build_lpt_device_aml());
1417 aml_append(scope
, build_com_device_aml(1));
1418 aml_append(scope
, build_com_device_aml(2));
1420 aml_append(table
, scope
);
1423 static void build_dbg_aml(Aml
*table
)
1428 Aml
*scope
= aml_scope("\\");
1429 Aml
*buf
= aml_local(0);
1430 Aml
*len
= aml_local(1);
1431 Aml
*idx
= aml_local(2);
1434 aml_operation_region("DBG", AML_SYSTEM_IO
, aml_int(0x0402), 0x01));
1435 field
= aml_field("DBG", AML_BYTE_ACC
, AML_NOLOCK
, AML_PRESERVE
);
1436 aml_append(field
, aml_named_field("DBGB", 8));
1437 aml_append(scope
, field
);
1439 method
= aml_method("DBUG", 1, AML_NOTSERIALIZED
);
1441 aml_append(method
, aml_to_hexstring(aml_arg(0), buf
));
1442 aml_append(method
, aml_to_buffer(buf
, buf
));
1443 aml_append(method
, aml_subtract(aml_sizeof(buf
), aml_int(1), len
));
1444 aml_append(method
, aml_store(aml_int(0), idx
));
1446 while_ctx
= aml_while(aml_lless(idx
, len
));
1447 aml_append(while_ctx
,
1448 aml_store(aml_derefof(aml_index(buf
, idx
)), aml_name("DBGB")));
1449 aml_append(while_ctx
, aml_increment(idx
));
1450 aml_append(method
, while_ctx
);
1452 aml_append(method
, aml_store(aml_int(0x0A), aml_name("DBGB")));
1453 aml_append(scope
, method
);
1455 aml_append(table
, scope
);
1458 static Aml
*build_link_dev(const char *name
, uint8_t uid
, Aml
*reg
)
1463 uint32_t irqs
[] = {5, 10, 11};
1465 dev
= aml_device("%s", name
);
1466 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0C0F")));
1467 aml_append(dev
, aml_name_decl("_UID", aml_int(uid
)));
1469 crs
= aml_resource_template();
1470 aml_append(crs
, aml_interrupt(AML_CONSUMER
, AML_LEVEL
, AML_ACTIVE_HIGH
,
1471 AML_SHARED
, irqs
, ARRAY_SIZE(irqs
)));
1472 aml_append(dev
, aml_name_decl("_PRS", crs
));
1474 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1475 aml_append(method
, aml_return(aml_call1("IQST", reg
)));
1476 aml_append(dev
, method
);
1478 method
= aml_method("_DIS", 0, AML_NOTSERIALIZED
);
1479 aml_append(method
, aml_or(reg
, aml_int(0x80), reg
));
1480 aml_append(dev
, method
);
1482 method
= aml_method("_CRS", 0, AML_NOTSERIALIZED
);
1483 aml_append(method
, aml_return(aml_call1("IQCR", reg
)));
1484 aml_append(dev
, method
);
1486 method
= aml_method("_SRS", 1, AML_NOTSERIALIZED
);
1487 aml_append(method
, aml_create_dword_field(aml_arg(0), aml_int(5), "PRRI"));
1488 aml_append(method
, aml_store(aml_name("PRRI"), reg
));
1489 aml_append(dev
, method
);
1494 static Aml
*build_gsi_link_dev(const char *name
, uint8_t uid
, uint8_t gsi
)
1501 dev
= aml_device("%s", name
);
1502 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0C0F")));
1503 aml_append(dev
, aml_name_decl("_UID", aml_int(uid
)));
1505 crs
= aml_resource_template();
1507 aml_append(crs
, aml_interrupt(AML_CONSUMER
, AML_LEVEL
, AML_ACTIVE_HIGH
,
1508 AML_SHARED
, &irqs
, 1));
1509 aml_append(dev
, aml_name_decl("_PRS", crs
));
1511 aml_append(dev
, aml_name_decl("_CRS", crs
));
1513 method
= aml_method("_SRS", 1, AML_NOTSERIALIZED
);
1514 aml_append(dev
, method
);
1519 /* _CRS method - get current settings */
1520 static Aml
*build_iqcr_method(bool is_piix4
)
1524 Aml
*method
= aml_method("IQCR", 1, AML_SERIALIZED
);
1525 Aml
*crs
= aml_resource_template();
1528 aml_append(crs
, aml_interrupt(AML_CONSUMER
, AML_LEVEL
,
1529 AML_ACTIVE_HIGH
, AML_SHARED
, &irqs
, 1));
1530 aml_append(method
, aml_name_decl("PRR0", crs
));
1533 aml_create_dword_field(aml_name("PRR0"), aml_int(5), "PRRI"));
1536 if_ctx
= aml_if(aml_lless(aml_arg(0), aml_int(0x80)));
1537 aml_append(if_ctx
, aml_store(aml_arg(0), aml_name("PRRI")));
1538 aml_append(method
, if_ctx
);
1541 aml_store(aml_and(aml_arg(0), aml_int(0xF), NULL
),
1545 aml_append(method
, aml_return(aml_name("PRR0")));
1549 /* _STA method - get status */
1550 static Aml
*build_irq_status_method(void)
1553 Aml
*method
= aml_method("IQST", 1, AML_NOTSERIALIZED
);
1555 if_ctx
= aml_if(aml_and(aml_int(0x80), aml_arg(0), NULL
));
1556 aml_append(if_ctx
, aml_return(aml_int(0x09)));
1557 aml_append(method
, if_ctx
);
1558 aml_append(method
, aml_return(aml_int(0x0B)));
1562 static void build_piix4_pci0_int(Aml
*table
)
1569 Aml
*sb_scope
= aml_scope("_SB");
1570 Aml
*pci0_scope
= aml_scope("PCI0");
1572 aml_append(pci0_scope
, build_prt(true));
1573 aml_append(sb_scope
, pci0_scope
);
1575 field
= aml_field("PCI0.ISA.P40C", AML_BYTE_ACC
, AML_NOLOCK
, AML_PRESERVE
);
1576 aml_append(field
, aml_named_field("PRQ0", 8));
1577 aml_append(field
, aml_named_field("PRQ1", 8));
1578 aml_append(field
, aml_named_field("PRQ2", 8));
1579 aml_append(field
, aml_named_field("PRQ3", 8));
1580 aml_append(sb_scope
, field
);
1582 aml_append(sb_scope
, build_irq_status_method());
1583 aml_append(sb_scope
, build_iqcr_method(true));
1585 aml_append(sb_scope
, build_link_dev("LNKA", 0, aml_name("PRQ0")));
1586 aml_append(sb_scope
, build_link_dev("LNKB", 1, aml_name("PRQ1")));
1587 aml_append(sb_scope
, build_link_dev("LNKC", 2, aml_name("PRQ2")));
1588 aml_append(sb_scope
, build_link_dev("LNKD", 3, aml_name("PRQ3")));
1590 dev
= aml_device("LNKS");
1592 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0C0F")));
1593 aml_append(dev
, aml_name_decl("_UID", aml_int(4)));
1595 crs
= aml_resource_template();
1597 aml_append(crs
, aml_interrupt(AML_CONSUMER
, AML_LEVEL
,
1598 AML_ACTIVE_HIGH
, AML_SHARED
,
1600 aml_append(dev
, aml_name_decl("_PRS", crs
));
1602 /* The SCI cannot be disabled and is always attached to GSI 9,
1603 * so these are no-ops. We only need this link to override the
1604 * polarity to active high and match the content of the MADT.
1606 method
= aml_method("_STA", 0, AML_NOTSERIALIZED
);
1607 aml_append(method
, aml_return(aml_int(0x0b)));
1608 aml_append(dev
, method
);
1610 method
= aml_method("_DIS", 0, AML_NOTSERIALIZED
);
1611 aml_append(dev
, method
);
1613 method
= aml_method("_CRS", 0, AML_NOTSERIALIZED
);
1614 aml_append(method
, aml_return(aml_name("_PRS")));
1615 aml_append(dev
, method
);
1617 method
= aml_method("_SRS", 1, AML_NOTSERIALIZED
);
1618 aml_append(dev
, method
);
1620 aml_append(sb_scope
, dev
);
1622 aml_append(table
, sb_scope
);
1625 static void append_q35_prt_entry(Aml
*ctx
, uint32_t nr
, const char *name
)
1630 char base
= name
[3] < 'E' ? 'A' : 'E';
1631 char *s
= g_strdup(name
);
1632 Aml
*a_nr
= aml_int((nr
<< 16) | 0xffff);
1634 assert(strlen(s
) == 4);
1636 head
= name
[3] - base
;
1637 for (i
= 0; i
< 4; i
++) {
1641 s
[3] = base
+ head
+ i
;
1642 pkg
= aml_package(4);
1643 aml_append(pkg
, a_nr
);
1644 aml_append(pkg
, aml_int(i
));
1645 aml_append(pkg
, aml_name("%s", s
));
1646 aml_append(pkg
, aml_int(0));
1647 aml_append(ctx
, pkg
);
1652 static Aml
*build_q35_routing_table(const char *str
)
1656 char *name
= g_strdup_printf("%s ", str
);
1658 pkg
= aml_package(128);
1659 for (i
= 0; i
< 0x18; i
++) {
1660 name
[3] = 'E' + (i
& 0x3);
1661 append_q35_prt_entry(pkg
, i
, name
);
1665 append_q35_prt_entry(pkg
, 0x18, name
);
1667 /* INTA -> PIRQA for slot 25 - 31, see the default value of D<N>IR */
1668 for (i
= 0x0019; i
< 0x1e; i
++) {
1670 append_q35_prt_entry(pkg
, i
, name
);
1673 /* PCIe->PCI bridge. use PIRQ[E-H] */
1675 append_q35_prt_entry(pkg
, 0x1e, name
);
1677 append_q35_prt_entry(pkg
, 0x1f, name
);
1683 static void build_q35_pci0_int(Aml
*table
)
1687 Aml
*sb_scope
= aml_scope("_SB");
1688 Aml
*pci0_scope
= aml_scope("PCI0");
1690 /* Zero => PIC mode, One => APIC Mode */
1691 aml_append(table
, aml_name_decl("PICF", aml_int(0)));
1692 method
= aml_method("_PIC", 1, AML_NOTSERIALIZED
);
1694 aml_append(method
, aml_store(aml_arg(0), aml_name("PICF")));
1696 aml_append(table
, method
);
1698 aml_append(pci0_scope
,
1699 aml_name_decl("PRTP", build_q35_routing_table("LNK")));
1700 aml_append(pci0_scope
,
1701 aml_name_decl("PRTA", build_q35_routing_table("GSI")));
1703 method
= aml_method("_PRT", 0, AML_NOTSERIALIZED
);
1708 /* PCI IRQ routing table, example from ACPI 2.0a specification,
1710 /* Note: we provide the same info as the PCI routing
1711 table of the Bochs BIOS */
1712 if_ctx
= aml_if(aml_equal(aml_name("PICF"), aml_int(0)));
1713 aml_append(if_ctx
, aml_return(aml_name("PRTP")));
1714 aml_append(method
, if_ctx
);
1715 else_ctx
= aml_else();
1716 aml_append(else_ctx
, aml_return(aml_name("PRTA")));
1717 aml_append(method
, else_ctx
);
1719 aml_append(pci0_scope
, method
);
1720 aml_append(sb_scope
, pci0_scope
);
1722 field
= aml_field("PCI0.ISA.PIRQ", AML_BYTE_ACC
, AML_NOLOCK
, AML_PRESERVE
);
1723 aml_append(field
, aml_named_field("PRQA", 8));
1724 aml_append(field
, aml_named_field("PRQB", 8));
1725 aml_append(field
, aml_named_field("PRQC", 8));
1726 aml_append(field
, aml_named_field("PRQD", 8));
1727 aml_append(field
, aml_reserved_field(0x20));
1728 aml_append(field
, aml_named_field("PRQE", 8));
1729 aml_append(field
, aml_named_field("PRQF", 8));
1730 aml_append(field
, aml_named_field("PRQG", 8));
1731 aml_append(field
, aml_named_field("PRQH", 8));
1732 aml_append(sb_scope
, field
);
1734 aml_append(sb_scope
, build_irq_status_method());
1735 aml_append(sb_scope
, build_iqcr_method(false));
1737 aml_append(sb_scope
, build_link_dev("LNKA", 0, aml_name("PRQA")));
1738 aml_append(sb_scope
, build_link_dev("LNKB", 1, aml_name("PRQB")));
1739 aml_append(sb_scope
, build_link_dev("LNKC", 2, aml_name("PRQC")));
1740 aml_append(sb_scope
, build_link_dev("LNKD", 3, aml_name("PRQD")));
1741 aml_append(sb_scope
, build_link_dev("LNKE", 4, aml_name("PRQE")));
1742 aml_append(sb_scope
, build_link_dev("LNKF", 5, aml_name("PRQF")));
1743 aml_append(sb_scope
, build_link_dev("LNKG", 6, aml_name("PRQG")));
1744 aml_append(sb_scope
, build_link_dev("LNKH", 7, aml_name("PRQH")));
1747 * TODO: UID probably shouldn't be the same for GSIx devices
1748 * but that's how it was in original ASL so keep it for now
1750 aml_append(sb_scope
, build_gsi_link_dev("GSIA", 0, 0x10));
1751 aml_append(sb_scope
, build_gsi_link_dev("GSIB", 0, 0x11));
1752 aml_append(sb_scope
, build_gsi_link_dev("GSIC", 0, 0x12));
1753 aml_append(sb_scope
, build_gsi_link_dev("GSID", 0, 0x13));
1754 aml_append(sb_scope
, build_gsi_link_dev("GSIE", 0, 0x14));
1755 aml_append(sb_scope
, build_gsi_link_dev("GSIF", 0, 0x15));
1756 aml_append(sb_scope
, build_gsi_link_dev("GSIG", 0, 0x16));
1757 aml_append(sb_scope
, build_gsi_link_dev("GSIH", 0, 0x17));
1759 aml_append(table
, sb_scope
);
1762 static void build_q35_isa_bridge(Aml
*table
)
1768 scope
= aml_scope("_SB.PCI0");
1769 dev
= aml_device("ISA");
1770 aml_append(dev
, aml_name_decl("_ADR", aml_int(0x001F0000)));
1772 /* ICH9 PCI to ISA irq remapping */
1773 aml_append(dev
, aml_operation_region("PIRQ", AML_PCI_CONFIG
,
1774 aml_int(0x60), 0x0C));
1776 aml_append(dev
, aml_operation_region("LPCD", AML_PCI_CONFIG
,
1777 aml_int(0x80), 0x02));
1778 field
= aml_field("LPCD", AML_ANY_ACC
, AML_NOLOCK
, AML_PRESERVE
);
1779 aml_append(field
, aml_named_field("COMA", 3));
1780 aml_append(field
, aml_reserved_field(1));
1781 aml_append(field
, aml_named_field("COMB", 3));
1782 aml_append(field
, aml_reserved_field(1));
1783 aml_append(field
, aml_named_field("LPTD", 2));
1784 aml_append(field
, aml_reserved_field(2));
1785 aml_append(field
, aml_named_field("FDCD", 2));
1786 aml_append(dev
, field
);
1788 aml_append(dev
, aml_operation_region("LPCE", AML_PCI_CONFIG
,
1789 aml_int(0x82), 0x02));
1791 field
= aml_field("LPCE", AML_ANY_ACC
, AML_NOLOCK
, AML_PRESERVE
);
1792 aml_append(field
, aml_named_field("CAEN", 1));
1793 aml_append(field
, aml_named_field("CBEN", 1));
1794 aml_append(field
, aml_named_field("LPEN", 1));
1795 aml_append(field
, aml_named_field("FDEN", 1));
1796 aml_append(dev
, field
);
1798 aml_append(scope
, dev
);
1799 aml_append(table
, scope
);
1802 static void build_piix4_pm(Aml
*table
)
1807 scope
= aml_scope("_SB.PCI0");
1808 dev
= aml_device("PX13");
1809 aml_append(dev
, aml_name_decl("_ADR", aml_int(0x00010003)));
1811 aml_append(dev
, aml_operation_region("P13C", AML_PCI_CONFIG
,
1812 aml_int(0x00), 0xff));
1813 aml_append(scope
, dev
);
1814 aml_append(table
, scope
);
1817 static void build_piix4_isa_bridge(Aml
*table
)
1823 scope
= aml_scope("_SB.PCI0");
1824 dev
= aml_device("ISA");
1825 aml_append(dev
, aml_name_decl("_ADR", aml_int(0x00010000)));
1827 /* PIIX PCI to ISA irq remapping */
1828 aml_append(dev
, aml_operation_region("P40C", AML_PCI_CONFIG
,
1829 aml_int(0x60), 0x04));
1831 field
= aml_field("^PX13.P13C", AML_ANY_ACC
, AML_NOLOCK
, AML_PRESERVE
);
1832 /* Offset(0x5f),, 7, */
1833 aml_append(field
, aml_reserved_field(0x2f8));
1834 aml_append(field
, aml_reserved_field(7));
1835 aml_append(field
, aml_named_field("LPEN", 1));
1836 /* Offset(0x67),, 3, */
1837 aml_append(field
, aml_reserved_field(0x38));
1838 aml_append(field
, aml_reserved_field(3));
1839 aml_append(field
, aml_named_field("CAEN", 1));
1840 aml_append(field
, aml_reserved_field(3));
1841 aml_append(field
, aml_named_field("CBEN", 1));
1842 aml_append(dev
, field
);
1843 aml_append(dev
, aml_name_decl("FDEN", aml_int(1)));
1845 aml_append(scope
, dev
);
1846 aml_append(table
, scope
);
1849 static void build_piix4_pci_hotplug(Aml
*table
)
1855 scope
= aml_scope("_SB.PCI0");
1858 aml_operation_region("PCST", AML_SYSTEM_IO
, aml_int(0xae00), 0x08));
1859 field
= aml_field("PCST", AML_DWORD_ACC
, AML_NOLOCK
, AML_WRITE_AS_ZEROS
);
1860 aml_append(field
, aml_named_field("PCIU", 32));
1861 aml_append(field
, aml_named_field("PCID", 32));
1862 aml_append(scope
, field
);
1865 aml_operation_region("SEJ", AML_SYSTEM_IO
, aml_int(0xae08), 0x04));
1866 field
= aml_field("SEJ", AML_DWORD_ACC
, AML_NOLOCK
, AML_WRITE_AS_ZEROS
);
1867 aml_append(field
, aml_named_field("B0EJ", 32));
1868 aml_append(scope
, field
);
1871 aml_operation_region("BNMR", AML_SYSTEM_IO
, aml_int(0xae10), 0x04));
1872 field
= aml_field("BNMR", AML_DWORD_ACC
, AML_NOLOCK
, AML_WRITE_AS_ZEROS
);
1873 aml_append(field
, aml_named_field("BNUM", 32));
1874 aml_append(scope
, field
);
1876 aml_append(scope
, aml_mutex("BLCK", 0));
1878 method
= aml_method("PCEJ", 2, AML_NOTSERIALIZED
);
1879 aml_append(method
, aml_acquire(aml_name("BLCK"), 0xFFFF));
1880 aml_append(method
, aml_store(aml_arg(0), aml_name("BNUM")));
1882 aml_store(aml_shiftleft(aml_int(1), aml_arg(1)), aml_name("B0EJ")));
1883 aml_append(method
, aml_release(aml_name("BLCK")));
1884 aml_append(method
, aml_return(aml_int(0)));
1885 aml_append(scope
, method
);
1887 aml_append(table
, scope
);
1890 static Aml
*build_q35_osc_method(void)
1896 Aml
*a_cwd1
= aml_name("CDW1");
1897 Aml
*a_ctrl
= aml_name("CTRL");
1899 method
= aml_method("_OSC", 4, AML_NOTSERIALIZED
);
1900 aml_append(method
, aml_create_dword_field(aml_arg(3), aml_int(0), "CDW1"));
1902 if_ctx
= aml_if(aml_equal(
1903 aml_arg(0), aml_touuid("33DB4D5B-1FF7-401C-9657-7441C03DD766")));
1904 aml_append(if_ctx
, aml_create_dword_field(aml_arg(3), aml_int(4), "CDW2"));
1905 aml_append(if_ctx
, aml_create_dword_field(aml_arg(3), aml_int(8), "CDW3"));
1907 aml_append(if_ctx
, aml_store(aml_name("CDW2"), aml_name("SUPP")));
1908 aml_append(if_ctx
, aml_store(aml_name("CDW3"), a_ctrl
));
1911 * Always allow native PME, AER (no dependencies)
1912 * Never allow SHPC (no SHPC controller in this system)
1914 aml_append(if_ctx
, aml_and(a_ctrl
, aml_int(0x1D), a_ctrl
));
1916 if_ctx2
= aml_if(aml_lnot(aml_equal(aml_arg(1), aml_int(1))));
1917 /* Unknown revision */
1918 aml_append(if_ctx2
, aml_or(a_cwd1
, aml_int(0x08), a_cwd1
));
1919 aml_append(if_ctx
, if_ctx2
);
1921 if_ctx2
= aml_if(aml_lnot(aml_equal(aml_name("CDW3"), a_ctrl
)));
1922 /* Capabilities bits were masked */
1923 aml_append(if_ctx2
, aml_or(a_cwd1
, aml_int(0x10), a_cwd1
));
1924 aml_append(if_ctx
, if_ctx2
);
1926 /* Update DWORD3 in the buffer */
1927 aml_append(if_ctx
, aml_store(a_ctrl
, aml_name("CDW3")));
1928 aml_append(method
, if_ctx
);
1930 else_ctx
= aml_else();
1931 /* Unrecognized UUID */
1932 aml_append(else_ctx
, aml_or(a_cwd1
, aml_int(4), a_cwd1
));
1933 aml_append(method
, else_ctx
);
1935 aml_append(method
, aml_return(aml_arg(3)));
1940 build_dsdt(GArray
*table_data
, GArray
*linker
,
1941 AcpiCpuInfo
*cpu
, AcpiPmInfo
*pm
, AcpiMiscInfo
*misc
,
1944 CrsRangeEntry
*entry
;
1945 Aml
*dsdt
, *sb_scope
, *scope
, *dev
, *method
, *field
, *pkg
, *crs
;
1946 GPtrArray
*mem_ranges
= g_ptr_array_new_with_free_func(crs_range_free
);
1947 GPtrArray
*io_ranges
= g_ptr_array_new_with_free_func(crs_range_free
);
1948 MachineState
*machine
= MACHINE(qdev_get_machine());
1949 PCMachineState
*pcms
= PC_MACHINE(machine
);
1950 uint32_t nr_mem
= machine
->ram_slots
;
1951 int root_bus_limit
= 0xFF;
1955 dsdt
= init_aml_allocator();
1957 /* Reserve space for header */
1958 acpi_data_push(dsdt
->buf
, sizeof(AcpiTableHeader
));
1960 build_dbg_aml(dsdt
);
1961 if (misc
->is_piix4
) {
1962 sb_scope
= aml_scope("_SB");
1963 dev
= aml_device("PCI0");
1964 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
1965 aml_append(dev
, aml_name_decl("_ADR", aml_int(0)));
1966 aml_append(dev
, aml_name_decl("_UID", aml_int(1)));
1967 aml_append(sb_scope
, dev
);
1968 aml_append(dsdt
, sb_scope
);
1970 build_hpet_aml(dsdt
);
1971 build_piix4_pm(dsdt
);
1972 build_piix4_isa_bridge(dsdt
);
1973 build_isa_devices_aml(dsdt
);
1974 build_piix4_pci_hotplug(dsdt
);
1975 build_piix4_pci0_int(dsdt
);
1977 sb_scope
= aml_scope("_SB");
1978 aml_append(sb_scope
,
1979 aml_operation_region("PCST", AML_SYSTEM_IO
, aml_int(0xae00), 0x0c));
1980 aml_append(sb_scope
,
1981 aml_operation_region("PCSB", AML_SYSTEM_IO
, aml_int(0xae0c), 0x01));
1982 field
= aml_field("PCSB", AML_ANY_ACC
, AML_NOLOCK
, AML_WRITE_AS_ZEROS
);
1983 aml_append(field
, aml_named_field("PCIB", 8));
1984 aml_append(sb_scope
, field
);
1985 aml_append(dsdt
, sb_scope
);
1987 sb_scope
= aml_scope("_SB");
1988 dev
= aml_device("PCI0");
1989 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0A08")));
1990 aml_append(dev
, aml_name_decl("_CID", aml_eisaid("PNP0A03")));
1991 aml_append(dev
, aml_name_decl("_ADR", aml_int(0)));
1992 aml_append(dev
, aml_name_decl("_UID", aml_int(1)));
1993 aml_append(dev
, aml_name_decl("SUPP", aml_int(0)));
1994 aml_append(dev
, aml_name_decl("CTRL", aml_int(0)));
1995 aml_append(dev
, build_q35_osc_method());
1996 aml_append(sb_scope
, dev
);
1997 aml_append(dsdt
, sb_scope
);
1999 build_hpet_aml(dsdt
);
2000 build_q35_isa_bridge(dsdt
);
2001 build_isa_devices_aml(dsdt
);
2002 build_q35_pci0_int(dsdt
);
2005 build_cpu_hotplug_aml(dsdt
);
2006 build_memory_hotplug_aml(dsdt
, nr_mem
, pm
->mem_hp_io_base
,
2009 scope
= aml_scope("_GPE");
2011 aml_append(scope
, aml_name_decl("_HID", aml_string("ACPI0006")));
2013 aml_append(scope
, aml_method("_L00", 0, AML_NOTSERIALIZED
));
2015 if (misc
->is_piix4
) {
2016 method
= aml_method("_E01", 0, AML_NOTSERIALIZED
);
2018 aml_acquire(aml_name("\\_SB.PCI0.BLCK"), 0xFFFF));
2019 aml_append(method
, aml_call0("\\_SB.PCI0.PCNT"));
2020 aml_append(method
, aml_release(aml_name("\\_SB.PCI0.BLCK")));
2021 aml_append(scope
, method
);
2023 aml_append(scope
, aml_method("_L01", 0, AML_NOTSERIALIZED
));
2026 method
= aml_method("_E02", 0, AML_NOTSERIALIZED
);
2027 aml_append(method
, aml_call0("\\_SB." CPU_SCAN_METHOD
));
2028 aml_append(scope
, method
);
2030 method
= aml_method("_E03", 0, AML_NOTSERIALIZED
);
2031 aml_append(method
, aml_call0(MEMORY_HOTPLUG_HANDLER_PATH
));
2032 aml_append(scope
, method
);
2034 aml_append(scope
, aml_method("_L04", 0, AML_NOTSERIALIZED
));
2035 aml_append(scope
, aml_method("_L05", 0, AML_NOTSERIALIZED
));
2036 aml_append(scope
, aml_method("_L06", 0, AML_NOTSERIALIZED
));
2037 aml_append(scope
, aml_method("_L07", 0, AML_NOTSERIALIZED
));
2038 aml_append(scope
, aml_method("_L08", 0, AML_NOTSERIALIZED
));
2039 aml_append(scope
, aml_method("_L09", 0, AML_NOTSERIALIZED
));
2040 aml_append(scope
, aml_method("_L0A", 0, AML_NOTSERIALIZED
));
2041 aml_append(scope
, aml_method("_L0B", 0, AML_NOTSERIALIZED
));
2042 aml_append(scope
, aml_method("_L0C", 0, AML_NOTSERIALIZED
));
2043 aml_append(scope
, aml_method("_L0D", 0, AML_NOTSERIALIZED
));
2044 aml_append(scope
, aml_method("_L0E", 0, AML_NOTSERIALIZED
));
2045 aml_append(scope
, aml_method("_L0F", 0, AML_NOTSERIALIZED
));
2047 aml_append(dsdt
, scope
);
2049 bus
= PC_MACHINE(machine
)->bus
;
2051 QLIST_FOREACH(bus
, &bus
->child
, sibling
) {
2052 uint8_t bus_num
= pci_bus_num(bus
);
2053 uint8_t numa_node
= pci_bus_numa_node(bus
);
2055 /* look only for expander root buses */
2056 if (!pci_bus_is_root(bus
)) {
2060 if (bus_num
< root_bus_limit
) {
2061 root_bus_limit
= bus_num
- 1;
2064 scope
= aml_scope("\\_SB");
2065 dev
= aml_device("PC%.02X", bus_num
);
2066 aml_append(dev
, aml_name_decl("_UID", aml_int(bus_num
)));
2067 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0A03")));
2068 aml_append(dev
, aml_name_decl("_BBN", aml_int(bus_num
)));
2070 if (numa_node
!= NUMA_NODE_UNASSIGNED
) {
2071 aml_append(dev
, aml_name_decl("_PXM", aml_int(numa_node
)));
2074 aml_append(dev
, build_prt(false));
2075 crs
= build_crs(PCI_HOST_BRIDGE(BUS(bus
)->parent
),
2076 io_ranges
, mem_ranges
);
2077 aml_append(dev
, aml_name_decl("_CRS", crs
));
2078 aml_append(scope
, dev
);
2079 aml_append(dsdt
, scope
);
2083 scope
= aml_scope("\\_SB.PCI0");
2084 /* build PCI0._CRS */
2085 crs
= aml_resource_template();
2087 aml_word_bus_number(AML_MIN_FIXED
, AML_MAX_FIXED
, AML_POS_DECODE
,
2088 0x0000, 0x0, root_bus_limit
,
2089 0x0000, root_bus_limit
+ 1));
2090 aml_append(crs
, aml_io(AML_DECODE16
, 0x0CF8, 0x0CF8, 0x01, 0x08));
2093 aml_word_io(AML_MIN_FIXED
, AML_MAX_FIXED
,
2094 AML_POS_DECODE
, AML_ENTIRE_RANGE
,
2095 0x0000, 0x0000, 0x0CF7, 0x0000, 0x0CF8));
2097 crs_replace_with_free_ranges(io_ranges
, 0x0D00, 0xFFFF);
2098 for (i
= 0; i
< io_ranges
->len
; i
++) {
2099 entry
= g_ptr_array_index(io_ranges
, i
);
2101 aml_word_io(AML_MIN_FIXED
, AML_MAX_FIXED
,
2102 AML_POS_DECODE
, AML_ENTIRE_RANGE
,
2103 0x0000, entry
->base
, entry
->limit
,
2104 0x0000, entry
->limit
- entry
->base
+ 1));
2108 aml_dword_memory(AML_POS_DECODE
, AML_MIN_FIXED
, AML_MAX_FIXED
,
2109 AML_CACHEABLE
, AML_READ_WRITE
,
2110 0, 0x000A0000, 0x000BFFFF, 0, 0x00020000));
2112 crs_replace_with_free_ranges(mem_ranges
, pci
->w32
.begin
, pci
->w32
.end
- 1);
2113 for (i
= 0; i
< mem_ranges
->len
; i
++) {
2114 entry
= g_ptr_array_index(mem_ranges
, i
);
2116 aml_dword_memory(AML_POS_DECODE
, AML_MIN_FIXED
, AML_MAX_FIXED
,
2117 AML_NON_CACHEABLE
, AML_READ_WRITE
,
2118 0, entry
->base
, entry
->limit
,
2119 0, entry
->limit
- entry
->base
+ 1));
2122 if (pci
->w64
.begin
) {
2124 aml_qword_memory(AML_POS_DECODE
, AML_MIN_FIXED
, AML_MAX_FIXED
,
2125 AML_CACHEABLE
, AML_READ_WRITE
,
2126 0, pci
->w64
.begin
, pci
->w64
.end
- 1, 0,
2127 pci
->w64
.end
- pci
->w64
.begin
));
2129 aml_append(scope
, aml_name_decl("_CRS", crs
));
2131 /* reserve GPE0 block resources */
2132 dev
= aml_device("GPE0");
2133 aml_append(dev
, aml_name_decl("_HID", aml_string("PNP0A06")));
2134 aml_append(dev
, aml_name_decl("_UID", aml_string("GPE0 resources")));
2135 /* device present, functioning, decoding, not shown in UI */
2136 aml_append(dev
, aml_name_decl("_STA", aml_int(0xB)));
2137 crs
= aml_resource_template();
2139 aml_io(AML_DECODE16
, pm
->gpe0_blk
, pm
->gpe0_blk
, 1, pm
->gpe0_blk_len
)
2141 aml_append(dev
, aml_name_decl("_CRS", crs
));
2142 aml_append(scope
, dev
);
2144 g_ptr_array_free(io_ranges
, true);
2145 g_ptr_array_free(mem_ranges
, true);
2147 /* reserve PCIHP resources */
2148 if (pm
->pcihp_io_len
) {
2149 dev
= aml_device("PHPR");
2150 aml_append(dev
, aml_name_decl("_HID", aml_string("PNP0A06")));
2152 aml_name_decl("_UID", aml_string("PCI Hotplug resources")));
2153 /* device present, functioning, decoding, not shown in UI */
2154 aml_append(dev
, aml_name_decl("_STA", aml_int(0xB)));
2155 crs
= aml_resource_template();
2157 aml_io(AML_DECODE16
, pm
->pcihp_io_base
, pm
->pcihp_io_base
, 1,
2160 aml_append(dev
, aml_name_decl("_CRS", crs
));
2161 aml_append(scope
, dev
);
2163 aml_append(dsdt
, scope
);
2165 /* create S3_ / S4_ / S5_ packages if necessary */
2166 scope
= aml_scope("\\");
2167 if (!pm
->s3_disabled
) {
2168 pkg
= aml_package(4);
2169 aml_append(pkg
, aml_int(1)); /* PM1a_CNT.SLP_TYP */
2170 aml_append(pkg
, aml_int(1)); /* PM1b_CNT.SLP_TYP, FIXME: not impl. */
2171 aml_append(pkg
, aml_int(0)); /* reserved */
2172 aml_append(pkg
, aml_int(0)); /* reserved */
2173 aml_append(scope
, aml_name_decl("_S3", pkg
));
2176 if (!pm
->s4_disabled
) {
2177 pkg
= aml_package(4);
2178 aml_append(pkg
, aml_int(pm
->s4_val
)); /* PM1a_CNT.SLP_TYP */
2179 /* PM1b_CNT.SLP_TYP, FIXME: not impl. */
2180 aml_append(pkg
, aml_int(pm
->s4_val
));
2181 aml_append(pkg
, aml_int(0)); /* reserved */
2182 aml_append(pkg
, aml_int(0)); /* reserved */
2183 aml_append(scope
, aml_name_decl("_S4", pkg
));
2186 pkg
= aml_package(4);
2187 aml_append(pkg
, aml_int(0)); /* PM1a_CNT.SLP_TYP */
2188 aml_append(pkg
, aml_int(0)); /* PM1b_CNT.SLP_TYP not impl. */
2189 aml_append(pkg
, aml_int(0)); /* reserved */
2190 aml_append(pkg
, aml_int(0)); /* reserved */
2191 aml_append(scope
, aml_name_decl("_S5", pkg
));
2192 aml_append(dsdt
, scope
);
2194 /* create fw_cfg node, unconditionally */
2196 /* when using port i/o, the 8-bit data register *always* overlaps
2197 * with half of the 16-bit control register. Hence, the total size
2198 * of the i/o region used is FW_CFG_CTL_SIZE; when using DMA, the
2199 * DMA control register is located at FW_CFG_DMA_IO_BASE + 4 */
2200 uint8_t io_size
= object_property_get_bool(OBJECT(pcms
->fw_cfg
),
2201 "dma_enabled", NULL
) ?
2202 ROUND_UP(FW_CFG_CTL_SIZE
, 4) + sizeof(dma_addr_t
) :
2205 scope
= aml_scope("\\_SB.PCI0");
2206 dev
= aml_device("FWCF");
2208 aml_append(dev
, aml_name_decl("_HID", aml_string("QEMU0002")));
2210 /* device present, functioning, decoding, not shown in UI */
2211 aml_append(dev
, aml_name_decl("_STA", aml_int(0xB)));
2213 crs
= aml_resource_template();
2215 aml_io(AML_DECODE16
, FW_CFG_IO_BASE
, FW_CFG_IO_BASE
, 0x01, io_size
)
2217 aml_append(dev
, aml_name_decl("_CRS", crs
));
2219 aml_append(scope
, dev
);
2220 aml_append(dsdt
, scope
);
2223 if (misc
->applesmc_io_base
) {
2224 scope
= aml_scope("\\_SB.PCI0.ISA");
2225 dev
= aml_device("SMC");
2227 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("APP0001")));
2228 /* device present, functioning, decoding, not shown in UI */
2229 aml_append(dev
, aml_name_decl("_STA", aml_int(0xB)));
2231 crs
= aml_resource_template();
2233 aml_io(AML_DECODE16
, misc
->applesmc_io_base
, misc
->applesmc_io_base
,
2234 0x01, APPLESMC_MAX_DATA_LENGTH
)
2236 aml_append(crs
, aml_irq_no_flags(6));
2237 aml_append(dev
, aml_name_decl("_CRS", crs
));
2239 aml_append(scope
, dev
);
2240 aml_append(dsdt
, scope
);
2243 if (misc
->pvpanic_port
) {
2244 scope
= aml_scope("\\_SB.PCI0.ISA");
2246 dev
= aml_device("PEVT");
2247 aml_append(dev
, aml_name_decl("_HID", aml_string("QEMU0001")));
2249 crs
= aml_resource_template();
2251 aml_io(AML_DECODE16
, misc
->pvpanic_port
, misc
->pvpanic_port
, 1, 1)
2253 aml_append(dev
, aml_name_decl("_CRS", crs
));
2255 aml_append(dev
, aml_operation_region("PEOR", AML_SYSTEM_IO
,
2256 aml_int(misc
->pvpanic_port
), 1));
2257 field
= aml_field("PEOR", AML_BYTE_ACC
, AML_NOLOCK
, AML_PRESERVE
);
2258 aml_append(field
, aml_named_field("PEPT", 8));
2259 aml_append(dev
, field
);
2261 /* device present, functioning, decoding, shown in UI */
2262 aml_append(dev
, aml_name_decl("_STA", aml_int(0xF)));
2264 method
= aml_method("RDPT", 0, AML_NOTSERIALIZED
);
2265 aml_append(method
, aml_store(aml_name("PEPT"), aml_local(0)));
2266 aml_append(method
, aml_return(aml_local(0)));
2267 aml_append(dev
, method
);
2269 method
= aml_method("WRPT", 1, AML_NOTSERIALIZED
);
2270 aml_append(method
, aml_store(aml_arg(0), aml_name("PEPT")));
2271 aml_append(dev
, method
);
2273 aml_append(scope
, dev
);
2274 aml_append(dsdt
, scope
);
2277 sb_scope
= aml_scope("\\_SB");
2279 build_processor_devices(sb_scope
, pcms
->apic_id_limit
, cpu
, pm
);
2281 build_memory_devices(sb_scope
, nr_mem
, pm
->mem_hp_io_base
,
2288 pci_host
= acpi_get_i386_pci_host();
2290 bus
= PCI_HOST_BRIDGE(pci_host
)->bus
;
2294 Aml
*scope
= aml_scope("PCI0");
2295 /* Scan all PCI buses. Generate tables to support hotplug. */
2296 build_append_pci_bus_devices(scope
, bus
, pm
->pcihp_bridge_en
);
2298 if (misc
->tpm_version
!= TPM_VERSION_UNSPEC
) {
2299 dev
= aml_device("ISA.TPM");
2300 aml_append(dev
, aml_name_decl("_HID", aml_eisaid("PNP0C31")));
2301 aml_append(dev
, aml_name_decl("_STA", aml_int(0xF)));
2302 crs
= aml_resource_template();
2303 aml_append(crs
, aml_memory32_fixed(TPM_TIS_ADDR_BASE
,
2304 TPM_TIS_ADDR_SIZE
, AML_READ_WRITE
));
2305 aml_append(crs
, aml_irq_no_flags(TPM_TIS_IRQ
));
2306 aml_append(dev
, aml_name_decl("_CRS", crs
));
2307 aml_append(scope
, dev
);
2310 aml_append(sb_scope
, scope
);
2313 aml_append(dsdt
, sb_scope
);
2316 /* copy AML table into ACPI tables blob and patch header there */
2317 g_array_append_vals(table_data
, dsdt
->buf
->data
, dsdt
->buf
->len
);
2318 build_header(linker
, table_data
,
2319 (void *)(table_data
->data
+ table_data
->len
- dsdt
->buf
->len
),
2320 "DSDT", dsdt
->buf
->len
, 1, NULL
, NULL
);
2321 free_aml_allocator();
2325 build_hpet(GArray
*table_data
, GArray
*linker
)
2329 hpet
= acpi_data_push(table_data
, sizeof(*hpet
));
2330 /* Note timer_block_id value must be kept in sync with value advertised by
2333 hpet
->timer_block_id
= cpu_to_le32(0x8086a201);
2334 hpet
->addr
.address
= cpu_to_le64(HPET_BASE
);
2335 build_header(linker
, table_data
,
2336 (void *)hpet
, "HPET", sizeof(*hpet
), 1, NULL
, NULL
);
2340 build_tpm_tcpa(GArray
*table_data
, GArray
*linker
, GArray
*tcpalog
)
2342 Acpi20Tcpa
*tcpa
= acpi_data_push(table_data
, sizeof *tcpa
);
2343 uint64_t log_area_start_address
= acpi_data_len(tcpalog
);
2345 tcpa
->platform_class
= cpu_to_le16(TPM_TCPA_ACPI_CLASS_CLIENT
);
2346 tcpa
->log_area_minimum_length
= cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE
);
2347 tcpa
->log_area_start_address
= cpu_to_le64(log_area_start_address
);
2349 bios_linker_loader_alloc(linker
, ACPI_BUILD_TPMLOG_FILE
, 1,
2350 false /* high memory */);
2352 /* log area start address to be filled by Guest linker */
2353 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_TABLE_FILE
,
2354 ACPI_BUILD_TPMLOG_FILE
,
2355 table_data
, &tcpa
->log_area_start_address
,
2356 sizeof(tcpa
->log_area_start_address
));
2358 build_header(linker
, table_data
,
2359 (void *)tcpa
, "TCPA", sizeof(*tcpa
), 2, NULL
, NULL
);
2361 acpi_data_push(tcpalog
, TPM_LOG_AREA_MINIMUM_SIZE
);
2365 build_tpm2(GArray
*table_data
, GArray
*linker
)
2367 Acpi20TPM2
*tpm2_ptr
;
2369 tpm2_ptr
= acpi_data_push(table_data
, sizeof *tpm2_ptr
);
2371 tpm2_ptr
->platform_class
= cpu_to_le16(TPM2_ACPI_CLASS_CLIENT
);
2372 tpm2_ptr
->control_area_address
= cpu_to_le64(0);
2373 tpm2_ptr
->start_method
= cpu_to_le32(TPM2_START_METHOD_MMIO
);
2375 build_header(linker
, table_data
,
2376 (void *)tpm2_ptr
, "TPM2", sizeof(*tpm2_ptr
), 4, NULL
, NULL
);
2380 MEM_AFFINITY_NOFLAGS
= 0,
2381 MEM_AFFINITY_ENABLED
= (1 << 0),
2382 MEM_AFFINITY_HOTPLUGGABLE
= (1 << 1),
2383 MEM_AFFINITY_NON_VOLATILE
= (1 << 2),
2384 } MemoryAffinityFlags
;
2387 acpi_build_srat_memory(AcpiSratMemoryAffinity
*numamem
, uint64_t base
,
2388 uint64_t len
, int node
, MemoryAffinityFlags flags
)
2390 numamem
->type
= ACPI_SRAT_MEMORY
;
2391 numamem
->length
= sizeof(*numamem
);
2392 memset(numamem
->proximity
, 0, 4);
2393 numamem
->proximity
[0] = node
;
2394 numamem
->flags
= cpu_to_le32(flags
);
2395 numamem
->base_addr
= cpu_to_le64(base
);
2396 numamem
->range_length
= cpu_to_le64(len
);
2400 build_srat(GArray
*table_data
, GArray
*linker
)
2402 AcpiSystemResourceAffinityTable
*srat
;
2403 AcpiSratProcessorAffinity
*core
;
2404 AcpiSratMemoryAffinity
*numamem
;
2408 int srat_start
, numa_start
, slots
;
2409 uint64_t mem_len
, mem_base
, next_base
;
2410 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
2411 ram_addr_t hotplugabble_address_space_size
=
2412 object_property_get_int(OBJECT(pcms
), PC_MACHINE_MEMHP_REGION_SIZE
,
2415 srat_start
= table_data
->len
;
2417 srat
= acpi_data_push(table_data
, sizeof *srat
);
2418 srat
->reserved1
= cpu_to_le32(1);
2419 core
= (void *)(srat
+ 1);
2421 for (i
= 0; i
< pcms
->apic_id_limit
; ++i
) {
2422 core
= acpi_data_push(table_data
, sizeof *core
);
2423 core
->type
= ACPI_SRAT_PROCESSOR
;
2424 core
->length
= sizeof(*core
);
2425 core
->local_apic_id
= i
;
2426 curnode
= pcms
->node_cpu
[i
];
2427 core
->proximity_lo
= curnode
;
2428 memset(core
->proximity_hi
, 0, 3);
2429 core
->local_sapic_eid
= 0;
2430 core
->flags
= cpu_to_le32(1);
2434 /* the memory map is a bit tricky, it contains at least one hole
2435 * from 640k-1M and possibly another one from 3.5G-4G.
2438 numa_start
= table_data
->len
;
2440 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
2441 acpi_build_srat_memory(numamem
, 0, 640*1024, 0, MEM_AFFINITY_ENABLED
);
2442 next_base
= 1024 * 1024;
2443 for (i
= 1; i
< pcms
->numa_nodes
+ 1; ++i
) {
2444 mem_base
= next_base
;
2445 mem_len
= pcms
->node_mem
[i
- 1];
2447 mem_len
-= 1024 * 1024;
2449 next_base
= mem_base
+ mem_len
;
2451 /* Cut out the ACPI_PCI hole */
2452 if (mem_base
<= pcms
->below_4g_mem_size
&&
2453 next_base
> pcms
->below_4g_mem_size
) {
2454 mem_len
-= next_base
- pcms
->below_4g_mem_size
;
2456 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
2457 acpi_build_srat_memory(numamem
, mem_base
, mem_len
, i
- 1,
2458 MEM_AFFINITY_ENABLED
);
2460 mem_base
= 1ULL << 32;
2461 mem_len
= next_base
- pcms
->below_4g_mem_size
;
2462 next_base
+= (1ULL << 32) - pcms
->below_4g_mem_size
;
2464 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
2465 acpi_build_srat_memory(numamem
, mem_base
, mem_len
, i
- 1,
2466 MEM_AFFINITY_ENABLED
);
2468 slots
= (table_data
->len
- numa_start
) / sizeof *numamem
;
2469 for (; slots
< pcms
->numa_nodes
+ 2; slots
++) {
2470 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
2471 acpi_build_srat_memory(numamem
, 0, 0, 0, MEM_AFFINITY_NOFLAGS
);
2475 * Entry is required for Windows to enable memory hotplug in OS.
2476 * Memory devices may override proximity set by this entry,
2477 * providing _PXM method if necessary.
2479 if (hotplugabble_address_space_size
) {
2480 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
2481 acpi_build_srat_memory(numamem
, pcms
->hotplug_memory
.base
,
2482 hotplugabble_address_space_size
, 0,
2483 MEM_AFFINITY_HOTPLUGGABLE
|
2484 MEM_AFFINITY_ENABLED
);
2487 build_header(linker
, table_data
,
2488 (void *)(table_data
->data
+ srat_start
),
2490 table_data
->len
- srat_start
, 1, NULL
, NULL
);
2494 build_mcfg_q35(GArray
*table_data
, GArray
*linker
, AcpiMcfgInfo
*info
)
2496 AcpiTableMcfg
*mcfg
;
2498 int len
= sizeof(*mcfg
) + 1 * sizeof(mcfg
->allocation
[0]);
2500 mcfg
= acpi_data_push(table_data
, len
);
2501 mcfg
->allocation
[0].address
= cpu_to_le64(info
->mcfg_base
);
2502 /* Only a single allocation so no need to play with segments */
2503 mcfg
->allocation
[0].pci_segment
= cpu_to_le16(0);
2504 mcfg
->allocation
[0].start_bus_number
= 0;
2505 mcfg
->allocation
[0].end_bus_number
= PCIE_MMCFG_BUS(info
->mcfg_size
- 1);
2507 /* MCFG is used for ECAM which can be enabled or disabled by guest.
2508 * To avoid table size changes (which create migration issues),
2509 * always create the table even if there are no allocations,
2510 * but set the signature to a reserved value in this case.
2511 * ACPI spec requires OSPMs to ignore such tables.
2513 if (info
->mcfg_base
== PCIE_BASE_ADDR_UNMAPPED
) {
2514 /* Reserved signature: ignored by OSPM */
2519 build_header(linker
, table_data
, (void *)mcfg
, sig
, len
, 1, NULL
, NULL
);
2523 build_dmar_q35(GArray
*table_data
, GArray
*linker
)
2525 int dmar_start
= table_data
->len
;
2527 AcpiTableDmar
*dmar
;
2528 AcpiDmarHardwareUnit
*drhd
;
2530 dmar
= acpi_data_push(table_data
, sizeof(*dmar
));
2531 dmar
->host_address_width
= VTD_HOST_ADDRESS_WIDTH
- 1;
2532 dmar
->flags
= 0; /* No intr_remap for now */
2534 /* DMAR Remapping Hardware Unit Definition structure */
2535 drhd
= acpi_data_push(table_data
, sizeof(*drhd
));
2536 drhd
->type
= cpu_to_le16(ACPI_DMAR_TYPE_HARDWARE_UNIT
);
2537 drhd
->length
= cpu_to_le16(sizeof(*drhd
)); /* No device scope now */
2538 drhd
->flags
= ACPI_DMAR_INCLUDE_PCI_ALL
;
2539 drhd
->pci_segment
= cpu_to_le16(0);
2540 drhd
->address
= cpu_to_le64(Q35_HOST_BRIDGE_IOMMU_ADDR
);
2542 build_header(linker
, table_data
, (void *)(table_data
->data
+ dmar_start
),
2543 "DMAR", table_data
->len
- dmar_start
, 1, NULL
, NULL
);
2547 build_rsdp(GArray
*rsdp_table
, GArray
*linker
, unsigned rsdt
)
2549 AcpiRsdpDescriptor
*rsdp
= acpi_data_push(rsdp_table
, sizeof *rsdp
);
2551 bios_linker_loader_alloc(linker
, ACPI_BUILD_RSDP_FILE
, 16,
2552 true /* fseg memory */);
2554 memcpy(&rsdp
->signature
, "RSD PTR ", 8);
2555 memcpy(rsdp
->oem_id
, ACPI_BUILD_APPNAME6
, 6);
2556 rsdp
->rsdt_physical_address
= cpu_to_le32(rsdt
);
2557 /* Address to be filled by Guest linker */
2558 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_RSDP_FILE
,
2559 ACPI_BUILD_TABLE_FILE
,
2560 rsdp_table
, &rsdp
->rsdt_physical_address
,
2561 sizeof rsdp
->rsdt_physical_address
);
2563 /* Checksum to be filled by Guest linker */
2564 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_RSDP_FILE
,
2565 rsdp_table
, rsdp
, sizeof *rsdp
,
2572 struct AcpiBuildState
{
2573 /* Copy of table in RAM (for patching). */
2574 MemoryRegion
*table_mr
;
2575 /* Is table patched? */
2578 MemoryRegion
*rsdp_mr
;
2579 MemoryRegion
*linker_mr
;
2582 static bool acpi_get_mcfg(AcpiMcfgInfo
*mcfg
)
2587 pci_host
= acpi_get_i386_pci_host();
2590 o
= object_property_get_qobject(pci_host
, PCIE_HOST_MCFG_BASE
, NULL
);
2594 mcfg
->mcfg_base
= qint_get_int(qobject_to_qint(o
));
2597 o
= object_property_get_qobject(pci_host
, PCIE_HOST_MCFG_SIZE
, NULL
);
2599 mcfg
->mcfg_size
= qint_get_int(qobject_to_qint(o
));
2604 static bool acpi_has_iommu(void)
2607 Object
*intel_iommu
;
2609 intel_iommu
= object_resolve_path_type("", TYPE_INTEL_IOMMU_DEVICE
,
2611 return intel_iommu
&& !ambiguous
;
2614 static bool acpi_has_nvdimm(void)
2616 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
2618 return pcms
->nvdimm
;
2622 void acpi_build(AcpiBuildTables
*tables
)
2624 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
2625 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
2626 GArray
*table_offsets
;
2627 unsigned facs
, dsdt
, rsdt
, fadt
;
2635 GArray
*tables_blob
= tables
->table_data
;
2636 AcpiSlicOem slic_oem
= { .id
= NULL
, .table_id
= NULL
};
2638 acpi_get_cpu_info(&cpu
);
2639 acpi_get_pm_info(&pm
);
2640 acpi_get_misc_info(&misc
);
2641 acpi_get_pci_info(&pci
);
2642 acpi_get_slic_oem(&slic_oem
);
2644 table_offsets
= g_array_new(false, true /* clear */,
2646 ACPI_BUILD_DPRINTF("init ACPI tables\n");
2648 bios_linker_loader_alloc(tables
->linker
, ACPI_BUILD_TABLE_FILE
,
2649 64 /* Ensure FACS is aligned */,
2650 false /* high memory */);
2653 * FACS is pointed to by FADT.
2654 * We place it first since it's the only table that has alignment
2657 facs
= tables_blob
->len
;
2658 build_facs(tables_blob
, tables
->linker
);
2660 /* DSDT is pointed to by FADT */
2661 dsdt
= tables_blob
->len
;
2662 build_dsdt(tables_blob
, tables
->linker
, &cpu
, &pm
, &misc
, &pci
);
2664 /* Count the size of the DSDT and SSDT, we will need it for legacy
2665 * sizing of ACPI tables.
2667 aml_len
+= tables_blob
->len
- dsdt
;
2669 /* ACPI tables pointed to by RSDT */
2670 fadt
= tables_blob
->len
;
2671 acpi_add_table(table_offsets
, tables_blob
);
2672 build_fadt(tables_blob
, tables
->linker
, &pm
, facs
, dsdt
,
2673 slic_oem
.id
, slic_oem
.table_id
);
2674 aml_len
+= tables_blob
->len
- fadt
;
2676 acpi_add_table(table_offsets
, tables_blob
);
2677 build_madt(tables_blob
, tables
->linker
, &cpu
);
2679 if (misc
.has_hpet
) {
2680 acpi_add_table(table_offsets
, tables_blob
);
2681 build_hpet(tables_blob
, tables
->linker
);
2683 if (misc
.tpm_version
!= TPM_VERSION_UNSPEC
) {
2684 acpi_add_table(table_offsets
, tables_blob
);
2685 build_tpm_tcpa(tables_blob
, tables
->linker
, tables
->tcpalog
);
2687 if (misc
.tpm_version
== TPM_VERSION_2_0
) {
2688 acpi_add_table(table_offsets
, tables_blob
);
2689 build_tpm2(tables_blob
, tables
->linker
);
2692 if (pcms
->numa_nodes
) {
2693 acpi_add_table(table_offsets
, tables_blob
);
2694 build_srat(tables_blob
, tables
->linker
);
2696 if (acpi_get_mcfg(&mcfg
)) {
2697 acpi_add_table(table_offsets
, tables_blob
);
2698 build_mcfg_q35(tables_blob
, tables
->linker
, &mcfg
);
2700 if (acpi_has_iommu()) {
2701 acpi_add_table(table_offsets
, tables_blob
);
2702 build_dmar_q35(tables_blob
, tables
->linker
);
2705 if (acpi_has_nvdimm()) {
2706 nvdimm_build_acpi(table_offsets
, tables_blob
, tables
->linker
);
2709 /* Add tables supplied by user (if any) */
2710 for (u
= acpi_table_first(); u
; u
= acpi_table_next(u
)) {
2711 unsigned len
= acpi_table_len(u
);
2713 acpi_add_table(table_offsets
, tables_blob
);
2714 g_array_append_vals(tables_blob
, u
, len
);
2717 /* RSDT is pointed to by RSDP */
2718 rsdt
= tables_blob
->len
;
2719 build_rsdt(tables_blob
, tables
->linker
, table_offsets
,
2720 slic_oem
.id
, slic_oem
.table_id
);
2722 /* RSDP is in FSEG memory, so allocate it separately */
2723 build_rsdp(tables
->rsdp
, tables
->linker
, rsdt
);
2725 /* We'll expose it all to Guest so we want to reduce
2726 * chance of size changes.
2728 * We used to align the tables to 4k, but of course this would
2729 * too simple to be enough. 4k turned out to be too small an
2730 * alignment very soon, and in fact it is almost impossible to
2731 * keep the table size stable for all (max_cpus, max_memory_slots)
2732 * combinations. So the table size is always 64k for pc-i440fx-2.1
2733 * and we give an error if the table grows beyond that limit.
2735 * We still have the problem of migrating from "-M pc-i440fx-2.0". For
2736 * that, we exploit the fact that QEMU 2.1 generates _smaller_ tables
2737 * than 2.0 and we can always pad the smaller tables with zeros. We can
2738 * then use the exact size of the 2.0 tables.
2740 * All this is for PIIX4, since QEMU 2.0 didn't support Q35 migration.
2742 if (pcmc
->legacy_acpi_table_size
) {
2743 /* Subtracting aml_len gives the size of fixed tables. Then add the
2744 * size of the PIIX4 DSDT/SSDT in QEMU 2.0.
2746 int legacy_aml_len
=
2747 pcmc
->legacy_acpi_table_size
+
2748 ACPI_BUILD_LEGACY_CPU_AML_SIZE
* max_cpus
;
2749 int legacy_table_size
=
2750 ROUND_UP(tables_blob
->len
- aml_len
+ legacy_aml_len
,
2751 ACPI_BUILD_ALIGN_SIZE
);
2752 if (tables_blob
->len
> legacy_table_size
) {
2753 /* Should happen only with PCI bridges and -M pc-i440fx-2.0. */
2754 error_report("Warning: migration may not work.");
2756 g_array_set_size(tables_blob
, legacy_table_size
);
2758 /* Make sure we have a buffer in case we need to resize the tables. */
2759 if (tables_blob
->len
> ACPI_BUILD_TABLE_SIZE
/ 2) {
2760 /* As of QEMU 2.1, this fires with 160 VCPUs and 255 memory slots. */
2761 error_report("Warning: ACPI tables are larger than 64k.");
2762 error_report("Warning: migration may not work.");
2763 error_report("Warning: please remove CPUs, NUMA nodes, "
2764 "memory slots or PCI bridges.");
2766 acpi_align_size(tables_blob
, ACPI_BUILD_TABLE_SIZE
);
2769 acpi_align_size(tables
->linker
, ACPI_BUILD_ALIGN_SIZE
);
2771 /* Cleanup memory that's no longer used. */
2772 g_array_free(table_offsets
, true);
2775 static void acpi_ram_update(MemoryRegion
*mr
, GArray
*data
)
2777 uint32_t size
= acpi_data_len(data
);
2779 /* Make sure RAM size is correct - in case it got changed e.g. by migration */
2780 memory_region_ram_resize(mr
, size
, &error_abort
);
2782 memcpy(memory_region_get_ram_ptr(mr
), data
->data
, size
);
2783 memory_region_set_dirty(mr
, 0, size
);
2786 static void acpi_build_update(void *build_opaque
)
2788 AcpiBuildState
*build_state
= build_opaque
;
2789 AcpiBuildTables tables
;
2791 /* No state to update or already patched? Nothing to do. */
2792 if (!build_state
|| build_state
->patched
) {
2795 build_state
->patched
= 1;
2797 acpi_build_tables_init(&tables
);
2799 acpi_build(&tables
);
2801 acpi_ram_update(build_state
->table_mr
, tables
.table_data
);
2803 if (build_state
->rsdp
) {
2804 memcpy(build_state
->rsdp
, tables
.rsdp
->data
, acpi_data_len(tables
.rsdp
));
2806 acpi_ram_update(build_state
->rsdp_mr
, tables
.rsdp
);
2809 acpi_ram_update(build_state
->linker_mr
, tables
.linker
);
2810 acpi_build_tables_cleanup(&tables
, true);
2813 static void acpi_build_reset(void *build_opaque
)
2815 AcpiBuildState
*build_state
= build_opaque
;
2816 build_state
->patched
= 0;
2819 static MemoryRegion
*acpi_add_rom_blob(AcpiBuildState
*build_state
,
2820 GArray
*blob
, const char *name
,
2823 return rom_add_blob(name
, blob
->data
, acpi_data_len(blob
), max_size
, -1,
2824 name
, acpi_build_update
, build_state
);
2827 static const VMStateDescription vmstate_acpi_build
= {
2828 .name
= "acpi_build",
2830 .minimum_version_id
= 1,
2831 .fields
= (VMStateField
[]) {
2832 VMSTATE_UINT8(patched
, AcpiBuildState
),
2833 VMSTATE_END_OF_LIST()
2837 void acpi_setup(void)
2839 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
2840 PCMachineClass
*pcmc
= PC_MACHINE_GET_CLASS(pcms
);
2841 AcpiBuildTables tables
;
2842 AcpiBuildState
*build_state
;
2844 if (!pcms
->fw_cfg
) {
2845 ACPI_BUILD_DPRINTF("No fw cfg. Bailing out.\n");
2849 if (!pcmc
->has_acpi_build
) {
2850 ACPI_BUILD_DPRINTF("ACPI build disabled. Bailing out.\n");
2854 if (!acpi_enabled
) {
2855 ACPI_BUILD_DPRINTF("ACPI disabled. Bailing out.\n");
2859 build_state
= g_malloc0(sizeof *build_state
);
2861 acpi_set_pci_info();
2863 acpi_build_tables_init(&tables
);
2864 acpi_build(&tables
);
2866 /* Now expose it all to Guest */
2867 build_state
->table_mr
= acpi_add_rom_blob(build_state
, tables
.table_data
,
2868 ACPI_BUILD_TABLE_FILE
,
2869 ACPI_BUILD_TABLE_MAX_SIZE
);
2870 assert(build_state
->table_mr
!= NULL
);
2872 build_state
->linker_mr
=
2873 acpi_add_rom_blob(build_state
, tables
.linker
, "etc/table-loader", 0);
2875 fw_cfg_add_file(pcms
->fw_cfg
, ACPI_BUILD_TPMLOG_FILE
,
2876 tables
.tcpalog
->data
, acpi_data_len(tables
.tcpalog
));
2878 if (!pcmc
->rsdp_in_ram
) {
2880 * Keep for compatibility with old machine types.
2881 * Though RSDP is small, its contents isn't immutable, so
2882 * we'll update it along with the rest of tables on guest access.
2884 uint32_t rsdp_size
= acpi_data_len(tables
.rsdp
);
2886 build_state
->rsdp
= g_memdup(tables
.rsdp
->data
, rsdp_size
);
2887 fw_cfg_add_file_callback(pcms
->fw_cfg
, ACPI_BUILD_RSDP_FILE
,
2888 acpi_build_update
, build_state
,
2889 build_state
->rsdp
, rsdp_size
);
2890 build_state
->rsdp_mr
= NULL
;
2892 build_state
->rsdp
= NULL
;
2893 build_state
->rsdp_mr
= acpi_add_rom_blob(build_state
, tables
.rsdp
,
2894 ACPI_BUILD_RSDP_FILE
, 0);
2897 qemu_register_reset(acpi_build_reset
, build_state
);
2898 acpi_build_reset(build_state
);
2899 vmstate_register(NULL
, 0, &vmstate_acpi_build
, build_state
);
2901 /* Cleanup tables but don't free the memory: we track it
2904 acpi_build_tables_cleanup(&tables
, false);