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 "acpi-build.h"
26 #include "qemu-common.h"
27 #include "qemu/bitmap.h"
28 #include "qemu/osdep.h"
29 #include "qemu/range.h"
30 #include "qemu/error-report.h"
31 #include "hw/pci/pci.h"
33 #include "hw/i386/pc.h"
34 #include "target-i386/cpu.h"
35 #include "hw/timer/hpet.h"
36 #include "hw/i386/acpi-defs.h"
37 #include "hw/acpi/acpi.h"
38 #include "hw/nvram/fw_cfg.h"
39 #include "bios-linker-loader.h"
40 #include "hw/loader.h"
41 #include "hw/isa/isa.h"
42 #include "hw/acpi/memory_hotplug.h"
43 #include "sysemu/tpm.h"
44 #include "hw/acpi/tpm.h"
46 /* Supported chipsets: */
47 #include "hw/acpi/piix4.h"
48 #include "hw/acpi/pcihp.h"
49 #include "hw/i386/ich9.h"
50 #include "hw/pci/pci_bus.h"
51 #include "hw/pci-host/q35.h"
52 #include "hw/i386/intel_iommu.h"
54 #include "hw/i386/q35-acpi-dsdt.hex"
55 #include "hw/i386/acpi-dsdt.hex"
57 #include "qapi/qmp/qint.h"
58 #include "qom/qom-qobject.h"
59 #include "exec/ram_addr.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
;
101 typedef struct AcpiMiscInfo
{
104 DECLARE_BITMAP(slot_hotplug_enable
, PCI_SLOT_MAX
);
105 const unsigned char *dsdt_code
;
107 uint16_t pvpanic_port
;
110 typedef struct AcpiBuildPciBusHotplugState
{
111 GArray
*device_table
;
112 GArray
*notify_table
;
113 struct AcpiBuildPciBusHotplugState
*parent
;
114 bool pcihp_bridge_en
;
115 } AcpiBuildPciBusHotplugState
;
117 static void acpi_get_dsdt(AcpiMiscInfo
*info
)
119 uint16_t *applesmc_sta
;
120 Object
*piix
= piix4_pm_find();
121 Object
*lpc
= ich9_lpc_find();
122 assert(!!piix
!= !!lpc
);
125 info
->dsdt_code
= AcpiDsdtAmlCode
;
126 info
->dsdt_size
= sizeof AcpiDsdtAmlCode
;
127 applesmc_sta
= piix_dsdt_applesmc_sta
;
130 info
->dsdt_code
= Q35AcpiDsdtAmlCode
;
131 info
->dsdt_size
= sizeof Q35AcpiDsdtAmlCode
;
132 applesmc_sta
= q35_dsdt_applesmc_sta
;
135 /* Patch in appropriate value for AppleSMC _STA */
136 *(uint8_t *)(info
->dsdt_code
+ *applesmc_sta
) =
137 applesmc_find() ? 0x0b : 0x00;
141 int acpi_add_cpu_info(Object
*o
, void *opaque
)
143 AcpiCpuInfo
*cpu
= opaque
;
146 if (object_dynamic_cast(o
, TYPE_CPU
)) {
147 apic_id
= object_property_get_int(o
, "apic-id", NULL
);
148 assert(apic_id
< ACPI_CPU_HOTPLUG_ID_LIMIT
);
150 set_bit(apic_id
, cpu
->found_cpus
);
153 object_child_foreach(o
, acpi_add_cpu_info
, opaque
);
157 static void acpi_get_cpu_info(AcpiCpuInfo
*cpu
)
159 Object
*root
= object_get_root();
161 memset(cpu
->found_cpus
, 0, sizeof cpu
->found_cpus
);
162 object_child_foreach(root
, acpi_add_cpu_info
, cpu
);
165 static void acpi_get_pm_info(AcpiPmInfo
*pm
)
167 Object
*piix
= piix4_pm_find();
168 Object
*lpc
= ich9_lpc_find();
180 /* Fill in optional s3/s4 related properties */
181 o
= object_property_get_qobject(obj
, ACPI_PM_PROP_S3_DISABLED
, NULL
);
183 pm
->s3_disabled
= qint_get_int(qobject_to_qint(o
));
185 pm
->s3_disabled
= false;
188 o
= object_property_get_qobject(obj
, ACPI_PM_PROP_S4_DISABLED
, NULL
);
190 pm
->s4_disabled
= qint_get_int(qobject_to_qint(o
));
192 pm
->s4_disabled
= false;
195 o
= object_property_get_qobject(obj
, ACPI_PM_PROP_S4_VAL
, NULL
);
197 pm
->s4_val
= qint_get_int(qobject_to_qint(o
));
203 /* Fill in mandatory properties */
204 pm
->sci_int
= object_property_get_int(obj
, ACPI_PM_PROP_SCI_INT
, NULL
);
206 pm
->acpi_enable_cmd
= object_property_get_int(obj
,
207 ACPI_PM_PROP_ACPI_ENABLE_CMD
,
209 pm
->acpi_disable_cmd
= object_property_get_int(obj
,
210 ACPI_PM_PROP_ACPI_DISABLE_CMD
,
212 pm
->io_base
= object_property_get_int(obj
, ACPI_PM_PROP_PM_IO_BASE
,
214 pm
->gpe0_blk
= object_property_get_int(obj
, ACPI_PM_PROP_GPE0_BLK
,
216 pm
->gpe0_blk_len
= object_property_get_int(obj
, ACPI_PM_PROP_GPE0_BLK_LEN
,
218 pm
->pcihp_bridge_en
=
219 object_property_get_bool(obj
, "acpi-pci-hotplug-with-bridge-support",
223 static void acpi_get_misc_info(AcpiMiscInfo
*info
)
225 info
->has_hpet
= hpet_find();
226 info
->has_tpm
= tpm_find();
227 info
->pvpanic_port
= pvpanic_port();
230 static void acpi_get_pci_info(PcPciInfo
*info
)
235 pci_host
= object_resolve_path_type("", TYPE_PCI_HOST_BRIDGE
, &ambiguous
);
236 g_assert(!ambiguous
);
239 info
->w32
.begin
= object_property_get_int(pci_host
,
240 PCI_HOST_PROP_PCI_HOLE_START
,
242 info
->w32
.end
= object_property_get_int(pci_host
,
243 PCI_HOST_PROP_PCI_HOLE_END
,
245 info
->w64
.begin
= object_property_get_int(pci_host
,
246 PCI_HOST_PROP_PCI_HOLE64_START
,
248 info
->w64
.end
= object_property_get_int(pci_host
,
249 PCI_HOST_PROP_PCI_HOLE64_END
,
253 #define ACPI_BUILD_APPNAME "Bochs"
254 #define ACPI_BUILD_APPNAME6 "BOCHS "
255 #define ACPI_BUILD_APPNAME4 "BXPC"
257 #define ACPI_BUILD_TABLE_FILE "etc/acpi/tables"
258 #define ACPI_BUILD_RSDP_FILE "etc/acpi/rsdp"
259 #define ACPI_BUILD_TPMLOG_FILE "etc/tpm/log"
262 build_header(GArray
*linker
, GArray
*table_data
,
263 AcpiTableHeader
*h
, const char *sig
, int len
, uint8_t rev
)
265 memcpy(&h
->signature
, sig
, 4);
266 h
->length
= cpu_to_le32(len
);
268 memcpy(h
->oem_id
, ACPI_BUILD_APPNAME6
, 6);
269 memcpy(h
->oem_table_id
, ACPI_BUILD_APPNAME4
, 4);
270 memcpy(h
->oem_table_id
+ 4, sig
, 4);
271 h
->oem_revision
= cpu_to_le32(1);
272 memcpy(h
->asl_compiler_id
, ACPI_BUILD_APPNAME4
, 4);
273 h
->asl_compiler_revision
= cpu_to_le32(1);
275 /* Checksum to be filled in by Guest linker */
276 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_TABLE_FILE
,
277 table_data
->data
, h
, len
, &h
->checksum
);
280 static inline GArray
*build_alloc_array(void)
282 return g_array_new(false, true /* clear */, 1);
285 static inline void build_free_array(GArray
*array
)
287 g_array_free(array
, true);
290 static inline void build_prepend_byte(GArray
*array
, uint8_t val
)
292 g_array_prepend_val(array
, val
);
295 static inline void build_append_byte(GArray
*array
, uint8_t val
)
297 g_array_append_val(array
, val
);
300 static inline void build_append_array(GArray
*array
, GArray
*val
)
302 g_array_append_vals(array
, val
->data
, val
->len
);
305 static void GCC_FMT_ATTR(2, 3)
306 build_append_nameseg(GArray
*array
, const char *format
, ...)
308 /* It would be nicer to use g_string_vprintf but it's only there in 2.22 */
313 va_start(args
, format
);
314 len
= vsnprintf(s
, sizeof s
, format
, args
);
318 g_array_append_vals(array
, s
, len
);
321 /* 5.4 Definition Block Encoding */
323 PACKAGE_LENGTH_1BYTE_SHIFT
= 6, /* Up to 63 - use extra 2 bits. */
324 PACKAGE_LENGTH_2BYTE_SHIFT
= 4,
325 PACKAGE_LENGTH_3BYTE_SHIFT
= 12,
326 PACKAGE_LENGTH_4BYTE_SHIFT
= 20,
329 static void build_prepend_package_length(GArray
*package
, unsigned min_bytes
)
332 unsigned length
= package
->len
;
333 unsigned length_bytes
;
335 if (length
+ 1 < (1 << PACKAGE_LENGTH_1BYTE_SHIFT
)) {
337 } else if (length
+ 2 < (1 << PACKAGE_LENGTH_3BYTE_SHIFT
)) {
339 } else if (length
+ 3 < (1 << PACKAGE_LENGTH_4BYTE_SHIFT
)) {
345 /* Force length to at least min_bytes.
346 * This wastes memory but that's how bios did it.
348 length_bytes
= MAX(length_bytes
, min_bytes
);
350 /* PkgLength is the length of the inclusive length of the data. */
351 length
+= length_bytes
;
353 switch (length_bytes
) {
356 build_prepend_byte(package
, byte
);
359 byte
= length
>> PACKAGE_LENGTH_4BYTE_SHIFT
;
360 build_prepend_byte(package
, byte
);
361 length
&= (1 << PACKAGE_LENGTH_4BYTE_SHIFT
) - 1;
364 byte
= length
>> PACKAGE_LENGTH_3BYTE_SHIFT
;
365 build_prepend_byte(package
, byte
);
366 length
&= (1 << PACKAGE_LENGTH_3BYTE_SHIFT
) - 1;
369 byte
= length
>> PACKAGE_LENGTH_2BYTE_SHIFT
;
370 build_prepend_byte(package
, byte
);
371 length
&= (1 << PACKAGE_LENGTH_2BYTE_SHIFT
) - 1;
375 * Most significant two bits of byte zero indicate how many following bytes
376 * are in PkgLength encoding.
378 byte
= ((length_bytes
- 1) << PACKAGE_LENGTH_1BYTE_SHIFT
) | length
;
379 build_prepend_byte(package
, byte
);
382 static void build_package(GArray
*package
, uint8_t op
, unsigned min_bytes
)
384 build_prepend_package_length(package
, min_bytes
);
385 build_prepend_byte(package
, op
);
388 static void build_extop_package(GArray
*package
, uint8_t op
)
390 build_package(package
, op
, 1);
391 build_prepend_byte(package
, 0x5B); /* ExtOpPrefix */
394 static void build_append_value(GArray
*table
, uint32_t value
, int size
)
401 prefix
= 0x0A; /* BytePrefix */
404 prefix
= 0x0B; /* WordPrefix */
407 prefix
= 0x0C; /* DWordPrefix */
413 build_append_byte(table
, prefix
);
414 for (i
= 0; i
< size
; ++i
) {
415 build_append_byte(table
, value
& 0xFF);
420 static void build_append_int(GArray
*table
, uint32_t value
)
423 build_append_byte(table
, 0x00); /* ZeroOp */
424 } else if (value
== 0x01) {
425 build_append_byte(table
, 0x01); /* OneOp */
426 } else if (value
<= 0xFF) {
427 build_append_value(table
, value
, 1);
428 } else if (value
<= 0xFFFF) {
429 build_append_value(table
, value
, 2);
431 build_append_value(table
, value
, 4);
435 static GArray
*build_alloc_method(const char *name
, uint8_t arg_count
)
437 GArray
*method
= build_alloc_array();
439 build_append_nameseg(method
, "%s", name
);
440 build_append_byte(method
, arg_count
); /* MethodFlags: ArgCount */
445 static void build_append_and_cleanup_method(GArray
*device
, GArray
*method
)
447 uint8_t op
= 0x14; /* MethodOp */
449 build_package(method
, op
, 0);
451 build_append_array(device
, method
);
452 build_free_array(method
);
455 static void build_append_notify_target_ifequal(GArray
*method
,
457 uint32_t value
, int size
)
459 GArray
*notify
= build_alloc_array();
460 uint8_t op
= 0xA0; /* IfOp */
462 build_append_byte(notify
, 0x93); /* LEqualOp */
463 build_append_byte(notify
, 0x68); /* Arg0Op */
464 build_append_value(notify
, value
, size
);
465 build_append_byte(notify
, 0x86); /* NotifyOp */
466 build_append_array(notify
, target_name
);
467 build_append_byte(notify
, 0x69); /* Arg1Op */
470 build_package(notify
, op
, 1);
472 build_append_array(method
, notify
);
474 build_free_array(notify
);
478 #define ACPI_PORT_SMI_CMD 0x00b2 /* TODO: this is APM_CNT_IOPORT */
480 static inline void *acpi_data_push(GArray
*table_data
, unsigned size
)
482 unsigned off
= table_data
->len
;
483 g_array_set_size(table_data
, off
+ size
);
484 return table_data
->data
+ off
;
487 static unsigned acpi_data_len(GArray
*table
)
489 #if GLIB_CHECK_VERSION(2, 22, 0)
490 assert(g_array_get_element_size(table
) == 1);
495 static void acpi_align_size(GArray
*blob
, unsigned align
)
497 /* Align size to multiple of given size. This reduces the chance
498 * we need to change size in the future (breaking cross version migration).
500 g_array_set_size(blob
, ROUND_UP(acpi_data_len(blob
), align
));
503 /* Set a value within table in a safe manner */
504 #define ACPI_BUILD_SET_LE(table, size, off, bits, val) \
506 uint64_t ACPI_BUILD_SET_LE_val = cpu_to_le64(val); \
507 memcpy(acpi_data_get_ptr(table, size, off, \
508 (bits) / BITS_PER_BYTE), \
509 &ACPI_BUILD_SET_LE_val, \
510 (bits) / BITS_PER_BYTE); \
513 static inline void *acpi_data_get_ptr(uint8_t *table_data
, unsigned table_size
,
514 unsigned off
, unsigned size
)
516 assert(off
+ size
> off
);
517 assert(off
+ size
<= table_size
);
518 return table_data
+ off
;
521 static inline void acpi_add_table(GArray
*table_offsets
, GArray
*table_data
)
523 uint32_t offset
= cpu_to_le32(table_data
->len
);
524 g_array_append_val(table_offsets
, offset
);
529 build_facs(GArray
*table_data
, GArray
*linker
, PcGuestInfo
*guest_info
)
531 AcpiFacsDescriptorRev1
*facs
= acpi_data_push(table_data
, sizeof *facs
);
532 memcpy(&facs
->signature
, "FACS", 4);
533 facs
->length
= cpu_to_le32(sizeof(*facs
));
536 /* Load chipset information in FADT */
537 static void fadt_setup(AcpiFadtDescriptorRev1
*fadt
, AcpiPmInfo
*pm
)
541 fadt
->sci_int
= cpu_to_le16(pm
->sci_int
);
542 fadt
->smi_cmd
= cpu_to_le32(ACPI_PORT_SMI_CMD
);
543 fadt
->acpi_enable
= pm
->acpi_enable_cmd
;
544 fadt
->acpi_disable
= pm
->acpi_disable_cmd
;
545 /* EVT, CNT, TMR offset matches hw/acpi/core.c */
546 fadt
->pm1a_evt_blk
= cpu_to_le32(pm
->io_base
);
547 fadt
->pm1a_cnt_blk
= cpu_to_le32(pm
->io_base
+ 0x04);
548 fadt
->pm_tmr_blk
= cpu_to_le32(pm
->io_base
+ 0x08);
549 fadt
->gpe0_blk
= cpu_to_le32(pm
->gpe0_blk
);
550 /* EVT, CNT, TMR length matches hw/acpi/core.c */
551 fadt
->pm1_evt_len
= 4;
552 fadt
->pm1_cnt_len
= 2;
553 fadt
->pm_tmr_len
= 4;
554 fadt
->gpe0_blk_len
= pm
->gpe0_blk_len
;
555 fadt
->plvl2_lat
= cpu_to_le16(0xfff); /* C2 state not supported */
556 fadt
->plvl3_lat
= cpu_to_le16(0xfff); /* C3 state not supported */
557 fadt
->flags
= cpu_to_le32((1 << ACPI_FADT_F_WBINVD
) |
558 (1 << ACPI_FADT_F_PROC_C1
) |
559 (1 << ACPI_FADT_F_SLP_BUTTON
) |
560 (1 << ACPI_FADT_F_RTC_S4
));
561 fadt
->flags
|= cpu_to_le32(1 << ACPI_FADT_F_USE_PLATFORM_CLOCK
);
562 /* APIC destination mode ("Flat Logical") has an upper limit of 8 CPUs
563 * For more than 8 CPUs, "Clustered Logical" mode has to be used
566 fadt
->flags
|= cpu_to_le32(1 << ACPI_FADT_F_FORCE_APIC_CLUSTER_MODEL
);
573 build_fadt(GArray
*table_data
, GArray
*linker
, AcpiPmInfo
*pm
,
574 unsigned facs
, unsigned dsdt
)
576 AcpiFadtDescriptorRev1
*fadt
= acpi_data_push(table_data
, sizeof(*fadt
));
578 fadt
->firmware_ctrl
= cpu_to_le32(facs
);
579 /* FACS address to be filled by Guest linker */
580 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_TABLE_FILE
,
581 ACPI_BUILD_TABLE_FILE
,
582 table_data
, &fadt
->firmware_ctrl
,
583 sizeof fadt
->firmware_ctrl
);
585 fadt
->dsdt
= cpu_to_le32(dsdt
);
586 /* DSDT address to be filled by Guest linker */
587 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_TABLE_FILE
,
588 ACPI_BUILD_TABLE_FILE
,
589 table_data
, &fadt
->dsdt
,
592 fadt_setup(fadt
, pm
);
594 build_header(linker
, table_data
,
595 (void *)fadt
, "FACP", sizeof(*fadt
), 1);
599 build_madt(GArray
*table_data
, GArray
*linker
, AcpiCpuInfo
*cpu
,
600 PcGuestInfo
*guest_info
)
602 int madt_start
= table_data
->len
;
604 AcpiMultipleApicTable
*madt
;
605 AcpiMadtIoApic
*io_apic
;
606 AcpiMadtIntsrcovr
*intsrcovr
;
607 AcpiMadtLocalNmi
*local_nmi
;
610 madt
= acpi_data_push(table_data
, sizeof *madt
);
611 madt
->local_apic_address
= cpu_to_le32(APIC_DEFAULT_ADDRESS
);
612 madt
->flags
= cpu_to_le32(1);
614 for (i
= 0; i
< guest_info
->apic_id_limit
; i
++) {
615 AcpiMadtProcessorApic
*apic
= acpi_data_push(table_data
, sizeof *apic
);
616 apic
->type
= ACPI_APIC_PROCESSOR
;
617 apic
->length
= sizeof(*apic
);
618 apic
->processor_id
= i
;
619 apic
->local_apic_id
= i
;
620 if (test_bit(i
, cpu
->found_cpus
)) {
621 apic
->flags
= cpu_to_le32(1);
623 apic
->flags
= cpu_to_le32(0);
626 io_apic
= acpi_data_push(table_data
, sizeof *io_apic
);
627 io_apic
->type
= ACPI_APIC_IO
;
628 io_apic
->length
= sizeof(*io_apic
);
629 #define ACPI_BUILD_IOAPIC_ID 0x0
630 io_apic
->io_apic_id
= ACPI_BUILD_IOAPIC_ID
;
631 io_apic
->address
= cpu_to_le32(IO_APIC_DEFAULT_ADDRESS
);
632 io_apic
->interrupt
= cpu_to_le32(0);
634 if (guest_info
->apic_xrupt_override
) {
635 intsrcovr
= acpi_data_push(table_data
, sizeof *intsrcovr
);
636 intsrcovr
->type
= ACPI_APIC_XRUPT_OVERRIDE
;
637 intsrcovr
->length
= sizeof(*intsrcovr
);
638 intsrcovr
->source
= 0;
639 intsrcovr
->gsi
= cpu_to_le32(2);
640 intsrcovr
->flags
= cpu_to_le16(0); /* conforms to bus specifications */
642 for (i
= 1; i
< 16; i
++) {
643 #define ACPI_BUILD_PCI_IRQS ((1<<5) | (1<<9) | (1<<10) | (1<<11))
644 if (!(ACPI_BUILD_PCI_IRQS
& (1 << i
))) {
645 /* No need for a INT source override structure. */
648 intsrcovr
= acpi_data_push(table_data
, sizeof *intsrcovr
);
649 intsrcovr
->type
= ACPI_APIC_XRUPT_OVERRIDE
;
650 intsrcovr
->length
= sizeof(*intsrcovr
);
651 intsrcovr
->source
= i
;
652 intsrcovr
->gsi
= cpu_to_le32(i
);
653 intsrcovr
->flags
= cpu_to_le16(0xd); /* active high, level triggered */
656 local_nmi
= acpi_data_push(table_data
, sizeof *local_nmi
);
657 local_nmi
->type
= ACPI_APIC_LOCAL_NMI
;
658 local_nmi
->length
= sizeof(*local_nmi
);
659 local_nmi
->processor_id
= 0xff; /* all processors */
660 local_nmi
->flags
= cpu_to_le16(0);
661 local_nmi
->lint
= 1; /* ACPI_LINT1 */
663 build_header(linker
, table_data
,
664 (void *)(table_data
->data
+ madt_start
), "APIC",
665 table_data
->len
- madt_start
, 1);
668 /* Encode a hex value */
669 static inline char acpi_get_hex(uint32_t val
)
672 return (val
<= 9) ? ('0' + val
) : ('A' + val
- 10);
675 #include "hw/i386/ssdt-proc.hex"
677 /* 0x5B 0x83 ProcessorOp PkgLength NameString ProcID */
678 #define ACPI_PROC_OFFSET_CPUHEX (*ssdt_proc_name - *ssdt_proc_start + 2)
679 #define ACPI_PROC_OFFSET_CPUID1 (*ssdt_proc_name - *ssdt_proc_start + 4)
680 #define ACPI_PROC_OFFSET_CPUID2 (*ssdt_proc_id - *ssdt_proc_start)
681 #define ACPI_PROC_SIZEOF (*ssdt_proc_end - *ssdt_proc_start)
682 #define ACPI_PROC_AML (ssdp_proc_aml + *ssdt_proc_start)
684 /* 0x5B 0x82 DeviceOp PkgLength NameString */
685 #define ACPI_PCIHP_OFFSET_HEX (*ssdt_pcihp_name - *ssdt_pcihp_start + 1)
686 #define ACPI_PCIHP_OFFSET_ID (*ssdt_pcihp_id - *ssdt_pcihp_start)
687 #define ACPI_PCIHP_OFFSET_ADR (*ssdt_pcihp_adr - *ssdt_pcihp_start)
688 #define ACPI_PCIHP_OFFSET_EJ0 (*ssdt_pcihp_ej0 - *ssdt_pcihp_start)
689 #define ACPI_PCIHP_SIZEOF (*ssdt_pcihp_end - *ssdt_pcihp_start)
690 #define ACPI_PCIHP_AML (ssdp_pcihp_aml + *ssdt_pcihp_start)
692 #define ACPI_PCINOHP_OFFSET_HEX (*ssdt_pcinohp_name - *ssdt_pcinohp_start + 1)
693 #define ACPI_PCINOHP_OFFSET_ADR (*ssdt_pcinohp_adr - *ssdt_pcinohp_start)
694 #define ACPI_PCINOHP_SIZEOF (*ssdt_pcinohp_end - *ssdt_pcinohp_start)
695 #define ACPI_PCINOHP_AML (ssdp_pcihp_aml + *ssdt_pcinohp_start)
697 #define ACPI_PCIVGA_OFFSET_HEX (*ssdt_pcivga_name - *ssdt_pcivga_start + 1)
698 #define ACPI_PCIVGA_OFFSET_ADR (*ssdt_pcivga_adr - *ssdt_pcivga_start)
699 #define ACPI_PCIVGA_SIZEOF (*ssdt_pcivga_end - *ssdt_pcivga_start)
700 #define ACPI_PCIVGA_AML (ssdp_pcihp_aml + *ssdt_pcivga_start)
702 #define ACPI_PCIQXL_OFFSET_HEX (*ssdt_pciqxl_name - *ssdt_pciqxl_start + 1)
703 #define ACPI_PCIQXL_OFFSET_ADR (*ssdt_pciqxl_adr - *ssdt_pciqxl_start)
704 #define ACPI_PCIQXL_SIZEOF (*ssdt_pciqxl_end - *ssdt_pciqxl_start)
705 #define ACPI_PCIQXL_AML (ssdp_pcihp_aml + *ssdt_pciqxl_start)
707 #include "hw/i386/ssdt-mem.hex"
709 /* 0x5B 0x82 DeviceOp PkgLength NameString DimmID */
710 #define ACPI_MEM_OFFSET_HEX (*ssdt_mem_name - *ssdt_mem_start + 2)
711 #define ACPI_MEM_OFFSET_ID (*ssdt_mem_id - *ssdt_mem_start + 7)
712 #define ACPI_MEM_SIZEOF (*ssdt_mem_end - *ssdt_mem_start)
713 #define ACPI_MEM_AML (ssdm_mem_aml + *ssdt_mem_start)
715 #define ACPI_SSDT_SIGNATURE 0x54445353 /* SSDT */
716 #define ACPI_SSDT_HEADER_LENGTH 36
718 #include "hw/i386/ssdt-misc.hex"
719 #include "hw/i386/ssdt-pcihp.hex"
720 #include "hw/i386/ssdt-tpm.hex"
723 build_append_notify_method(GArray
*device
, const char *name
,
724 const char *format
, int count
)
727 GArray
*method
= build_alloc_method(name
, 2);
729 for (i
= 0; i
< count
; i
++) {
730 GArray
*target
= build_alloc_array();
731 build_append_nameseg(target
, format
, i
);
732 assert(i
< 256); /* Fits in 1 byte */
733 build_append_notify_target_ifequal(method
, target
, i
, 1);
734 build_free_array(target
);
737 build_append_and_cleanup_method(device
, method
);
740 static void patch_pcihp(int slot
, uint8_t *ssdt_ptr
)
742 unsigned devfn
= PCI_DEVFN(slot
, 0);
744 ssdt_ptr
[ACPI_PCIHP_OFFSET_HEX
] = acpi_get_hex(devfn
>> 4);
745 ssdt_ptr
[ACPI_PCIHP_OFFSET_HEX
+ 1] = acpi_get_hex(devfn
);
746 ssdt_ptr
[ACPI_PCIHP_OFFSET_ID
] = slot
;
747 ssdt_ptr
[ACPI_PCIHP_OFFSET_ADR
+ 2] = slot
;
750 static void patch_pcinohp(int slot
, uint8_t *ssdt_ptr
)
752 unsigned devfn
= PCI_DEVFN(slot
, 0);
754 ssdt_ptr
[ACPI_PCINOHP_OFFSET_HEX
] = acpi_get_hex(devfn
>> 4);
755 ssdt_ptr
[ACPI_PCINOHP_OFFSET_HEX
+ 1] = acpi_get_hex(devfn
);
756 ssdt_ptr
[ACPI_PCINOHP_OFFSET_ADR
+ 2] = slot
;
759 static void patch_pcivga(int slot
, uint8_t *ssdt_ptr
)
761 unsigned devfn
= PCI_DEVFN(slot
, 0);
763 ssdt_ptr
[ACPI_PCIVGA_OFFSET_HEX
] = acpi_get_hex(devfn
>> 4);
764 ssdt_ptr
[ACPI_PCIVGA_OFFSET_HEX
+ 1] = acpi_get_hex(devfn
);
765 ssdt_ptr
[ACPI_PCIVGA_OFFSET_ADR
+ 2] = slot
;
768 static void patch_pciqxl(int slot
, uint8_t *ssdt_ptr
)
770 unsigned devfn
= PCI_DEVFN(slot
, 0);
772 ssdt_ptr
[ACPI_PCIQXL_OFFSET_HEX
] = acpi_get_hex(devfn
>> 4);
773 ssdt_ptr
[ACPI_PCIQXL_OFFSET_HEX
+ 1] = acpi_get_hex(devfn
);
774 ssdt_ptr
[ACPI_PCIQXL_OFFSET_ADR
+ 2] = slot
;
777 /* Assign BSEL property to all buses. In the future, this can be changed
778 * to only assign to buses that support hotplug.
780 static void *acpi_set_bsel(PCIBus
*bus
, void *opaque
)
782 unsigned *bsel_alloc
= opaque
;
785 if (qbus_is_hotpluggable(BUS(bus
))) {
786 bus_bsel
= g_malloc(sizeof *bus_bsel
);
788 *bus_bsel
= (*bsel_alloc
)++;
789 object_property_add_uint32_ptr(OBJECT(bus
), ACPI_PCIHP_PROP_BSEL
,
796 static void acpi_set_pci_info(void)
798 PCIBus
*bus
= find_i440fx(); /* TODO: Q35 support */
799 unsigned bsel_alloc
= 0;
802 /* Scan all PCI buses. Set property to enable acpi based hotplug. */
803 pci_for_each_bus_depth_first(bus
, acpi_set_bsel
, NULL
, &bsel_alloc
);
807 static void build_pci_bus_state_init(AcpiBuildPciBusHotplugState
*state
,
808 AcpiBuildPciBusHotplugState
*parent
,
809 bool pcihp_bridge_en
)
811 state
->parent
= parent
;
812 state
->device_table
= build_alloc_array();
813 state
->notify_table
= build_alloc_array();
814 state
->pcihp_bridge_en
= pcihp_bridge_en
;
817 static void build_pci_bus_state_cleanup(AcpiBuildPciBusHotplugState
*state
)
819 build_free_array(state
->device_table
);
820 build_free_array(state
->notify_table
);
823 static void *build_pci_bus_begin(PCIBus
*bus
, void *parent_state
)
825 AcpiBuildPciBusHotplugState
*parent
= parent_state
;
826 AcpiBuildPciBusHotplugState
*child
= g_malloc(sizeof *child
);
828 build_pci_bus_state_init(child
, parent
, parent
->pcihp_bridge_en
);
833 static void build_pci_bus_end(PCIBus
*bus
, void *bus_state
)
835 AcpiBuildPciBusHotplugState
*child
= bus_state
;
836 AcpiBuildPciBusHotplugState
*parent
= child
->parent
;
837 GArray
*bus_table
= build_alloc_array();
838 DECLARE_BITMAP(slot_hotplug_enable
, PCI_SLOT_MAX
);
839 DECLARE_BITMAP(slot_device_present
, PCI_SLOT_MAX
);
840 DECLARE_BITMAP(slot_device_system
, PCI_SLOT_MAX
);
841 DECLARE_BITMAP(slot_device_vga
, PCI_SLOT_MAX
);
842 DECLARE_BITMAP(slot_device_qxl
, PCI_SLOT_MAX
);
847 bool bus_hotplug_support
= false;
850 * Skip bridge subtree creation if bridge hotplug is disabled
851 * to make acpi tables compatible with legacy machine types.
853 if (!child
->pcihp_bridge_en
&& bus
->parent_dev
) {
857 if (bus
->parent_dev
) {
858 op
= 0x82; /* DeviceOp */
859 build_append_nameseg(bus_table
, "S%.02X_",
860 bus
->parent_dev
->devfn
);
861 build_append_byte(bus_table
, 0x08); /* NameOp */
862 build_append_nameseg(bus_table
, "_SUN");
863 build_append_value(bus_table
, PCI_SLOT(bus
->parent_dev
->devfn
), 1);
864 build_append_byte(bus_table
, 0x08); /* NameOp */
865 build_append_nameseg(bus_table
, "_ADR");
866 build_append_value(bus_table
, (PCI_SLOT(bus
->parent_dev
->devfn
) << 16) |
867 PCI_FUNC(bus
->parent_dev
->devfn
), 4);
869 op
= 0x10; /* ScopeOp */;
870 build_append_nameseg(bus_table
, "PCI0");
873 bsel
= object_property_get_qobject(OBJECT(bus
), ACPI_PCIHP_PROP_BSEL
, NULL
);
875 build_append_byte(bus_table
, 0x08); /* NameOp */
876 build_append_nameseg(bus_table
, "BSEL");
877 build_append_int(bus_table
, qint_get_int(qobject_to_qint(bsel
)));
878 memset(slot_hotplug_enable
, 0xff, sizeof slot_hotplug_enable
);
880 /* No bsel - no slots are hot-pluggable */
881 memset(slot_hotplug_enable
, 0x00, sizeof slot_hotplug_enable
);
884 memset(slot_device_present
, 0x00, sizeof slot_device_present
);
885 memset(slot_device_system
, 0x00, sizeof slot_device_present
);
886 memset(slot_device_vga
, 0x00, sizeof slot_device_vga
);
887 memset(slot_device_qxl
, 0x00, sizeof slot_device_qxl
);
889 for (i
= 0; i
< ARRAY_SIZE(bus
->devices
); i
+= PCI_FUNC_MAX
) {
892 PCIDevice
*pdev
= bus
->devices
[i
];
893 int slot
= PCI_SLOT(i
);
900 set_bit(slot
, slot_device_present
);
901 pc
= PCI_DEVICE_GET_CLASS(pdev
);
902 dc
= DEVICE_GET_CLASS(pdev
);
904 /* When hotplug for bridges is enabled, bridges are
905 * described in ACPI separately (see build_pci_bus_end).
906 * In this case they aren't themselves hot-pluggable.
908 bridge_in_acpi
= pc
->is_bridge
&& child
->pcihp_bridge_en
;
910 if (pc
->class_id
== PCI_CLASS_BRIDGE_ISA
|| bridge_in_acpi
) {
911 set_bit(slot
, slot_device_system
);
914 if (pc
->class_id
== PCI_CLASS_DISPLAY_VGA
) {
915 set_bit(slot
, slot_device_vga
);
917 if (object_dynamic_cast(OBJECT(pdev
), "qxl-vga")) {
918 set_bit(slot
, slot_device_qxl
);
922 if (!dc
->hotpluggable
|| bridge_in_acpi
) {
923 clear_bit(slot
, slot_hotplug_enable
);
927 /* Append Device object for each slot */
928 for (i
= 0; i
< PCI_SLOT_MAX
; i
++) {
929 bool can_eject
= test_bit(i
, slot_hotplug_enable
);
930 bool present
= test_bit(i
, slot_device_present
);
931 bool vga
= test_bit(i
, slot_device_vga
);
932 bool qxl
= test_bit(i
, slot_device_qxl
);
933 bool system
= test_bit(i
, slot_device_system
);
935 void *pcihp
= acpi_data_push(bus_table
,
937 memcpy(pcihp
, ACPI_PCIHP_AML
, ACPI_PCIHP_SIZEOF
);
938 patch_pcihp(i
, pcihp
);
939 bus_hotplug_support
= true;
941 void *pcihp
= acpi_data_push(bus_table
,
943 memcpy(pcihp
, ACPI_PCIQXL_AML
, ACPI_PCIQXL_SIZEOF
);
944 patch_pciqxl(i
, pcihp
);
946 void *pcihp
= acpi_data_push(bus_table
,
948 memcpy(pcihp
, ACPI_PCIVGA_AML
, ACPI_PCIVGA_SIZEOF
);
949 patch_pcivga(i
, pcihp
);
951 /* Nothing to do: system devices are in DSDT or in SSDT above. */
952 } else if (present
) {
953 void *pcihp
= acpi_data_push(bus_table
,
954 ACPI_PCINOHP_SIZEOF
);
955 memcpy(pcihp
, ACPI_PCINOHP_AML
, ACPI_PCINOHP_SIZEOF
);
956 patch_pcinohp(i
, pcihp
);
961 method
= build_alloc_method("DVNT", 2);
963 for (i
= 0; i
< PCI_SLOT_MAX
; i
++) {
967 if (!test_bit(i
, slot_hotplug_enable
)) {
971 notify
= build_alloc_array();
972 op
= 0xA0; /* IfOp */
974 build_append_byte(notify
, 0x7B); /* AndOp */
975 build_append_byte(notify
, 0x68); /* Arg0Op */
976 build_append_int(notify
, 0x1U
<< i
);
977 build_append_byte(notify
, 0x00); /* NullName */
978 build_append_byte(notify
, 0x86); /* NotifyOp */
979 build_append_nameseg(notify
, "S%.02X_", PCI_DEVFN(i
, 0));
980 build_append_byte(notify
, 0x69); /* Arg1Op */
983 build_package(notify
, op
, 0);
985 build_append_array(method
, notify
);
987 build_free_array(notify
);
990 build_append_and_cleanup_method(bus_table
, method
);
993 /* Append PCNT method to notify about events on local and child buses.
994 * Add unconditionally for root since DSDT expects it.
996 if (bus_hotplug_support
|| child
->notify_table
->len
|| !bus
->parent_dev
) {
997 method
= build_alloc_method("PCNT", 0);
999 /* If bus supports hotplug select it and notify about local events */
1001 build_append_byte(method
, 0x70); /* StoreOp */
1002 build_append_int(method
, qint_get_int(qobject_to_qint(bsel
)));
1003 build_append_nameseg(method
, "BNUM");
1004 build_append_nameseg(method
, "DVNT");
1005 build_append_nameseg(method
, "PCIU");
1006 build_append_int(method
, 1); /* Device Check */
1007 build_append_nameseg(method
, "DVNT");
1008 build_append_nameseg(method
, "PCID");
1009 build_append_int(method
, 3); /* Eject Request */
1012 /* Notify about child bus events in any case */
1013 build_append_array(method
, child
->notify_table
);
1015 build_append_and_cleanup_method(bus_table
, method
);
1017 /* Append description of child buses */
1018 build_append_array(bus_table
, child
->device_table
);
1021 if (bus
->parent_dev
) {
1022 build_extop_package(bus_table
, op
);
1024 build_package(bus_table
, op
, 0);
1027 /* Append our bus description to parent table */
1028 build_append_array(parent
->device_table
, bus_table
);
1030 /* Also tell parent how to notify us, invoking PCNT method.
1031 * At the moment this is not needed for root as we have a single root.
1033 if (bus
->parent_dev
) {
1034 build_append_byte(parent
->notify_table
, '^'); /* ParentPrefixChar */
1035 build_append_byte(parent
->notify_table
, 0x2E); /* DualNamePrefix */
1036 build_append_nameseg(parent
->notify_table
, "S%.02X_",
1037 bus
->parent_dev
->devfn
);
1038 build_append_nameseg(parent
->notify_table
, "PCNT");
1042 qobject_decref(bsel
);
1043 build_free_array(bus_table
);
1044 build_pci_bus_state_cleanup(child
);
1048 static void patch_pci_windows(PcPciInfo
*pci
, uint8_t *start
, unsigned size
)
1050 ACPI_BUILD_SET_LE(start
, size
, acpi_pci32_start
[0], 32, pci
->w32
.begin
);
1052 ACPI_BUILD_SET_LE(start
, size
, acpi_pci32_end
[0], 32, pci
->w32
.end
- 1);
1054 if (pci
->w64
.end
|| pci
->w64
.begin
) {
1055 ACPI_BUILD_SET_LE(start
, size
, acpi_pci64_valid
[0], 8, 1);
1056 ACPI_BUILD_SET_LE(start
, size
, acpi_pci64_start
[0], 64, pci
->w64
.begin
);
1057 ACPI_BUILD_SET_LE(start
, size
, acpi_pci64_end
[0], 64, pci
->w64
.end
- 1);
1058 ACPI_BUILD_SET_LE(start
, size
, acpi_pci64_length
[0], 64, pci
->w64
.end
- pci
->w64
.begin
);
1060 ACPI_BUILD_SET_LE(start
, size
, acpi_pci64_valid
[0], 8, 0);
1065 build_ssdt(GArray
*table_data
, GArray
*linker
,
1066 AcpiCpuInfo
*cpu
, AcpiPmInfo
*pm
, AcpiMiscInfo
*misc
,
1067 PcPciInfo
*pci
, PcGuestInfo
*guest_info
)
1069 MachineState
*machine
= MACHINE(qdev_get_machine());
1070 uint32_t nr_mem
= machine
->ram_slots
;
1071 unsigned acpi_cpus
= guest_info
->apic_id_limit
;
1072 int ssdt_start
= table_data
->len
;
1076 /* The current AML generator can cover the APIC ID range [0..255],
1077 * inclusive, for VCPU hotplug. */
1078 QEMU_BUILD_BUG_ON(ACPI_CPU_HOTPLUG_ID_LIMIT
> 256);
1079 g_assert(acpi_cpus
<= ACPI_CPU_HOTPLUG_ID_LIMIT
);
1081 /* Copy header and patch values in the S3_ / S4_ / S5_ packages */
1082 ssdt_ptr
= acpi_data_push(table_data
, sizeof(ssdp_misc_aml
));
1083 memcpy(ssdt_ptr
, ssdp_misc_aml
, sizeof(ssdp_misc_aml
));
1084 if (pm
->s3_disabled
) {
1085 ssdt_ptr
[acpi_s3_name
[0]] = 'X';
1087 if (pm
->s4_disabled
) {
1088 ssdt_ptr
[acpi_s4_name
[0]] = 'X';
1090 ssdt_ptr
[acpi_s4_pkg
[0] + 1] = ssdt_ptr
[acpi_s4_pkg
[0] + 3] =
1094 patch_pci_windows(pci
, ssdt_ptr
, sizeof(ssdp_misc_aml
));
1096 ACPI_BUILD_SET_LE(ssdt_ptr
, sizeof(ssdp_misc_aml
),
1097 ssdt_isa_pest
[0], 16, misc
->pvpanic_port
);
1099 ACPI_BUILD_SET_LE(ssdt_ptr
, sizeof(ssdp_misc_aml
),
1100 ssdt_mctrl_nr_slots
[0], 32, nr_mem
);
1103 GArray
*sb_scope
= build_alloc_array();
1104 uint8_t op
= 0x10; /* ScopeOp */
1106 build_append_nameseg(sb_scope
, "_SB_");
1108 /* build Processor object for each processor */
1109 for (i
= 0; i
< acpi_cpus
; i
++) {
1110 uint8_t *proc
= acpi_data_push(sb_scope
, ACPI_PROC_SIZEOF
);
1111 memcpy(proc
, ACPI_PROC_AML
, ACPI_PROC_SIZEOF
);
1112 proc
[ACPI_PROC_OFFSET_CPUHEX
] = acpi_get_hex(i
>> 4);
1113 proc
[ACPI_PROC_OFFSET_CPUHEX
+1] = acpi_get_hex(i
);
1114 proc
[ACPI_PROC_OFFSET_CPUID1
] = i
;
1115 proc
[ACPI_PROC_OFFSET_CPUID2
] = i
;
1119 * Method(NTFY, 2) {If (LEqual(Arg0, 0x00)) {Notify(CP00, Arg1)} ...}
1121 /* Arg0 = Processor ID = APIC ID */
1122 build_append_notify_method(sb_scope
, "NTFY", "CP%0.02X", acpi_cpus
);
1124 /* build "Name(CPON, Package() { One, One, ..., Zero, Zero, ... })" */
1125 build_append_byte(sb_scope
, 0x08); /* NameOp */
1126 build_append_nameseg(sb_scope
, "CPON");
1129 GArray
*package
= build_alloc_array();
1133 * Note: The ability to create variable-sized packages was first introduced in ACPI 2.0. ACPI 1.0 only
1134 * allowed fixed-size packages with up to 255 elements.
1135 * Windows guests up to win2k8 fail when VarPackageOp is used.
1137 if (acpi_cpus
<= 255) {
1138 op
= 0x12; /* PackageOp */
1139 build_append_byte(package
, acpi_cpus
); /* NumElements */
1141 op
= 0x13; /* VarPackageOp */
1142 build_append_int(package
, acpi_cpus
); /* VarNumElements */
1145 for (i
= 0; i
< acpi_cpus
; i
++) {
1146 uint8_t b
= test_bit(i
, cpu
->found_cpus
) ? 0x01 : 0x00;
1147 build_append_byte(package
, b
);
1150 build_package(package
, op
, 2);
1151 build_append_array(sb_scope
, package
);
1152 build_free_array(package
);
1156 assert(nr_mem
<= ACPI_MAX_RAM_SLOTS
);
1157 /* build memory devices */
1158 for (i
= 0; i
< nr_mem
; i
++) {
1160 uint8_t *mem
= acpi_data_push(sb_scope
, ACPI_MEM_SIZEOF
);
1162 snprintf(id
, sizeof(id
), "%02X", i
);
1163 memcpy(mem
, ACPI_MEM_AML
, ACPI_MEM_SIZEOF
);
1164 memcpy(mem
+ ACPI_MEM_OFFSET_HEX
, id
, 2);
1165 memcpy(mem
+ ACPI_MEM_OFFSET_ID
, id
, 2);
1168 /* build Method(MEMORY_SLOT_NOTIFY_METHOD, 2) {
1169 * If (LEqual(Arg0, 0x00)) {Notify(MP00, Arg1)} ...
1171 build_append_notify_method(sb_scope
,
1172 stringify(MEMORY_SLOT_NOTIFY_METHOD
),
1173 "MP%0.02X", nr_mem
);
1177 AcpiBuildPciBusHotplugState hotplug_state
;
1182 pci_host
= object_resolve_path_type("", TYPE_PCI_HOST_BRIDGE
, &ambiguous
);
1183 if (!ambiguous
&& pci_host
) {
1184 bus
= PCI_HOST_BRIDGE(pci_host
)->bus
;
1187 build_pci_bus_state_init(&hotplug_state
, NULL
, pm
->pcihp_bridge_en
);
1190 /* Scan all PCI buses. Generate tables to support hotplug. */
1191 pci_for_each_bus_depth_first(bus
, build_pci_bus_begin
,
1192 build_pci_bus_end
, &hotplug_state
);
1195 build_append_array(sb_scope
, hotplug_state
.device_table
);
1196 build_pci_bus_state_cleanup(&hotplug_state
);
1199 build_package(sb_scope
, op
, 3);
1200 build_append_array(table_data
, sb_scope
);
1201 build_free_array(sb_scope
);
1204 build_header(linker
, table_data
,
1205 (void *)(table_data
->data
+ ssdt_start
),
1206 "SSDT", table_data
->len
- ssdt_start
, 1);
1210 build_hpet(GArray
*table_data
, GArray
*linker
)
1214 hpet
= acpi_data_push(table_data
, sizeof(*hpet
));
1215 /* Note timer_block_id value must be kept in sync with value advertised by
1218 hpet
->timer_block_id
= cpu_to_le32(0x8086a201);
1219 hpet
->addr
.address
= cpu_to_le64(HPET_BASE
);
1220 build_header(linker
, table_data
,
1221 (void *)hpet
, "HPET", sizeof(*hpet
), 1);
1225 build_tpm_tcpa(GArray
*table_data
, GArray
*linker
, GArray
*tcpalog
)
1227 Acpi20Tcpa
*tcpa
= acpi_data_push(table_data
, sizeof *tcpa
);
1228 uint64_t log_area_start_address
= acpi_data_len(tcpalog
);
1230 tcpa
->platform_class
= cpu_to_le16(TPM_TCPA_ACPI_CLASS_CLIENT
);
1231 tcpa
->log_area_minimum_length
= cpu_to_le32(TPM_LOG_AREA_MINIMUM_SIZE
);
1232 tcpa
->log_area_start_address
= cpu_to_le64(log_area_start_address
);
1234 bios_linker_loader_alloc(linker
, ACPI_BUILD_TPMLOG_FILE
, 1,
1235 false /* high memory */);
1237 /* log area start address to be filled by Guest linker */
1238 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_TABLE_FILE
,
1239 ACPI_BUILD_TPMLOG_FILE
,
1240 table_data
, &tcpa
->log_area_start_address
,
1241 sizeof(tcpa
->log_area_start_address
));
1243 build_header(linker
, table_data
,
1244 (void *)tcpa
, "TCPA", sizeof(*tcpa
), 2);
1246 acpi_data_push(tcpalog
, TPM_LOG_AREA_MINIMUM_SIZE
);
1250 build_tpm_ssdt(GArray
*table_data
, GArray
*linker
)
1254 tpm_ptr
= acpi_data_push(table_data
, sizeof(ssdt_tpm_aml
));
1255 memcpy(tpm_ptr
, ssdt_tpm_aml
, sizeof(ssdt_tpm_aml
));
1259 MEM_AFFINITY_NOFLAGS
= 0,
1260 MEM_AFFINITY_ENABLED
= (1 << 0),
1261 MEM_AFFINITY_HOTPLUGGABLE
= (1 << 1),
1262 MEM_AFFINITY_NON_VOLATILE
= (1 << 2),
1263 } MemoryAffinityFlags
;
1266 acpi_build_srat_memory(AcpiSratMemoryAffinity
*numamem
, uint64_t base
,
1267 uint64_t len
, int node
, MemoryAffinityFlags flags
)
1269 numamem
->type
= ACPI_SRAT_MEMORY
;
1270 numamem
->length
= sizeof(*numamem
);
1271 memset(numamem
->proximity
, 0, 4);
1272 numamem
->proximity
[0] = node
;
1273 numamem
->flags
= cpu_to_le32(flags
);
1274 numamem
->base_addr
= cpu_to_le64(base
);
1275 numamem
->range_length
= cpu_to_le64(len
);
1279 build_srat(GArray
*table_data
, GArray
*linker
, PcGuestInfo
*guest_info
)
1281 AcpiSystemResourceAffinityTable
*srat
;
1282 AcpiSratProcessorAffinity
*core
;
1283 AcpiSratMemoryAffinity
*numamem
;
1287 int srat_start
, numa_start
, slots
;
1288 uint64_t mem_len
, mem_base
, next_base
;
1289 PCMachineState
*pcms
= PC_MACHINE(qdev_get_machine());
1290 ram_addr_t hotplugabble_address_space_size
=
1291 object_property_get_int(OBJECT(pcms
), PC_MACHINE_MEMHP_REGION_SIZE
,
1294 srat_start
= table_data
->len
;
1296 srat
= acpi_data_push(table_data
, sizeof *srat
);
1297 srat
->reserved1
= cpu_to_le32(1);
1298 core
= (void *)(srat
+ 1);
1300 for (i
= 0; i
< guest_info
->apic_id_limit
; ++i
) {
1301 core
= acpi_data_push(table_data
, sizeof *core
);
1302 core
->type
= ACPI_SRAT_PROCESSOR
;
1303 core
->length
= sizeof(*core
);
1304 core
->local_apic_id
= i
;
1305 curnode
= guest_info
->node_cpu
[i
];
1306 core
->proximity_lo
= curnode
;
1307 memset(core
->proximity_hi
, 0, 3);
1308 core
->local_sapic_eid
= 0;
1309 core
->flags
= cpu_to_le32(1);
1313 /* the memory map is a bit tricky, it contains at least one hole
1314 * from 640k-1M and possibly another one from 3.5G-4G.
1317 numa_start
= table_data
->len
;
1319 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
1320 acpi_build_srat_memory(numamem
, 0, 640*1024, 0, MEM_AFFINITY_ENABLED
);
1321 next_base
= 1024 * 1024;
1322 for (i
= 1; i
< guest_info
->numa_nodes
+ 1; ++i
) {
1323 mem_base
= next_base
;
1324 mem_len
= guest_info
->node_mem
[i
- 1];
1326 mem_len
-= 1024 * 1024;
1328 next_base
= mem_base
+ mem_len
;
1330 /* Cut out the ACPI_PCI hole */
1331 if (mem_base
<= guest_info
->ram_size_below_4g
&&
1332 next_base
> guest_info
->ram_size_below_4g
) {
1333 mem_len
-= next_base
- guest_info
->ram_size_below_4g
;
1335 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
1336 acpi_build_srat_memory(numamem
, mem_base
, mem_len
, i
- 1,
1337 MEM_AFFINITY_ENABLED
);
1339 mem_base
= 1ULL << 32;
1340 mem_len
= next_base
- guest_info
->ram_size_below_4g
;
1341 next_base
+= (1ULL << 32) - guest_info
->ram_size_below_4g
;
1343 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
1344 acpi_build_srat_memory(numamem
, mem_base
, mem_len
, i
- 1,
1345 MEM_AFFINITY_ENABLED
);
1347 slots
= (table_data
->len
- numa_start
) / sizeof *numamem
;
1348 for (; slots
< guest_info
->numa_nodes
+ 2; slots
++) {
1349 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
1350 acpi_build_srat_memory(numamem
, 0, 0, 0, MEM_AFFINITY_NOFLAGS
);
1354 * Entry is required for Windows to enable memory hotplug in OS.
1355 * Memory devices may override proximity set by this entry,
1356 * providing _PXM method if necessary.
1358 if (hotplugabble_address_space_size
) {
1359 numamem
= acpi_data_push(table_data
, sizeof *numamem
);
1360 acpi_build_srat_memory(numamem
, pcms
->hotplug_memory_base
,
1361 hotplugabble_address_space_size
, 0,
1362 MEM_AFFINITY_HOTPLUGGABLE
|
1363 MEM_AFFINITY_ENABLED
);
1366 build_header(linker
, table_data
,
1367 (void *)(table_data
->data
+ srat_start
),
1369 table_data
->len
- srat_start
, 1);
1373 build_mcfg_q35(GArray
*table_data
, GArray
*linker
, AcpiMcfgInfo
*info
)
1375 AcpiTableMcfg
*mcfg
;
1377 int len
= sizeof(*mcfg
) + 1 * sizeof(mcfg
->allocation
[0]);
1379 mcfg
= acpi_data_push(table_data
, len
);
1380 mcfg
->allocation
[0].address
= cpu_to_le64(info
->mcfg_base
);
1381 /* Only a single allocation so no need to play with segments */
1382 mcfg
->allocation
[0].pci_segment
= cpu_to_le16(0);
1383 mcfg
->allocation
[0].start_bus_number
= 0;
1384 mcfg
->allocation
[0].end_bus_number
= PCIE_MMCFG_BUS(info
->mcfg_size
- 1);
1386 /* MCFG is used for ECAM which can be enabled or disabled by guest.
1387 * To avoid table size changes (which create migration issues),
1388 * always create the table even if there are no allocations,
1389 * but set the signature to a reserved value in this case.
1390 * ACPI spec requires OSPMs to ignore such tables.
1392 if (info
->mcfg_base
== PCIE_BASE_ADDR_UNMAPPED
) {
1393 /* Reserved signature: ignored by OSPM */
1398 build_header(linker
, table_data
, (void *)mcfg
, sig
, len
, 1);
1402 build_dmar_q35(GArray
*table_data
, GArray
*linker
)
1404 int dmar_start
= table_data
->len
;
1406 AcpiTableDmar
*dmar
;
1407 AcpiDmarHardwareUnit
*drhd
;
1409 dmar
= acpi_data_push(table_data
, sizeof(*dmar
));
1410 dmar
->host_address_width
= VTD_HOST_ADDRESS_WIDTH
- 1;
1411 dmar
->flags
= 0; /* No intr_remap for now */
1413 /* DMAR Remapping Hardware Unit Definition structure */
1414 drhd
= acpi_data_push(table_data
, sizeof(*drhd
));
1415 drhd
->type
= cpu_to_le16(ACPI_DMAR_TYPE_HARDWARE_UNIT
);
1416 drhd
->length
= cpu_to_le16(sizeof(*drhd
)); /* No device scope now */
1417 drhd
->flags
= ACPI_DMAR_INCLUDE_PCI_ALL
;
1418 drhd
->pci_segment
= cpu_to_le16(0);
1419 drhd
->address
= cpu_to_le64(Q35_HOST_BRIDGE_IOMMU_ADDR
);
1421 build_header(linker
, table_data
, (void *)(table_data
->data
+ dmar_start
),
1422 "DMAR", table_data
->len
- dmar_start
, 1);
1426 build_dsdt(GArray
*table_data
, GArray
*linker
, AcpiMiscInfo
*misc
)
1428 AcpiTableHeader
*dsdt
;
1430 assert(misc
->dsdt_code
&& misc
->dsdt_size
);
1432 dsdt
= acpi_data_push(table_data
, misc
->dsdt_size
);
1433 memcpy(dsdt
, misc
->dsdt_code
, misc
->dsdt_size
);
1435 memset(dsdt
, 0, sizeof *dsdt
);
1436 build_header(linker
, table_data
, dsdt
, "DSDT",
1437 misc
->dsdt_size
, 1);
1440 /* Build final rsdt table */
1442 build_rsdt(GArray
*table_data
, GArray
*linker
, GArray
*table_offsets
)
1444 AcpiRsdtDescriptorRev1
*rsdt
;
1448 rsdt_len
= sizeof(*rsdt
) + sizeof(uint32_t) * table_offsets
->len
;
1449 rsdt
= acpi_data_push(table_data
, rsdt_len
);
1450 memcpy(rsdt
->table_offset_entry
, table_offsets
->data
,
1451 sizeof(uint32_t) * table_offsets
->len
);
1452 for (i
= 0; i
< table_offsets
->len
; ++i
) {
1453 /* rsdt->table_offset_entry to be filled by Guest linker */
1454 bios_linker_loader_add_pointer(linker
,
1455 ACPI_BUILD_TABLE_FILE
,
1456 ACPI_BUILD_TABLE_FILE
,
1457 table_data
, &rsdt
->table_offset_entry
[i
],
1460 build_header(linker
, table_data
,
1461 (void *)rsdt
, "RSDT", rsdt_len
, 1);
1465 build_rsdp(GArray
*rsdp_table
, GArray
*linker
, unsigned rsdt
)
1467 AcpiRsdpDescriptor
*rsdp
= acpi_data_push(rsdp_table
, sizeof *rsdp
);
1469 bios_linker_loader_alloc(linker
, ACPI_BUILD_RSDP_FILE
, 16,
1470 true /* fseg memory */);
1472 memcpy(&rsdp
->signature
, "RSD PTR ", 8);
1473 memcpy(rsdp
->oem_id
, ACPI_BUILD_APPNAME6
, 6);
1474 rsdp
->rsdt_physical_address
= cpu_to_le32(rsdt
);
1475 /* Address to be filled by Guest linker */
1476 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_RSDP_FILE
,
1477 ACPI_BUILD_TABLE_FILE
,
1478 rsdp_table
, &rsdp
->rsdt_physical_address
,
1479 sizeof rsdp
->rsdt_physical_address
);
1481 /* Checksum to be filled by Guest linker */
1482 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_RSDP_FILE
,
1483 rsdp
, rsdp
, sizeof *rsdp
, &rsdp
->checksum
);
1489 struct AcpiBuildTables
{
1496 static inline void acpi_build_tables_init(AcpiBuildTables
*tables
)
1498 tables
->rsdp
= g_array_new(false, true /* clear */, 1);
1499 tables
->table_data
= g_array_new(false, true /* clear */, 1);
1500 tables
->tcpalog
= g_array_new(false, true /* clear */, 1);
1501 tables
->linker
= bios_linker_loader_init();
1504 static inline void acpi_build_tables_cleanup(AcpiBuildTables
*tables
, bool mfre
)
1506 void *linker_data
= bios_linker_loader_cleanup(tables
->linker
);
1507 g_free(linker_data
);
1508 g_array_free(tables
->rsdp
, mfre
);
1509 g_array_free(tables
->table_data
, true);
1510 g_array_free(tables
->tcpalog
, mfre
);
1514 struct AcpiBuildState
{
1515 /* Copy of table in RAM (for patching). */
1516 ram_addr_t table_ram
;
1517 uint32_t table_size
;
1518 /* Is table patched? */
1520 PcGuestInfo
*guest_info
;
1523 static bool acpi_get_mcfg(AcpiMcfgInfo
*mcfg
)
1529 pci_host
= object_resolve_path_type("", TYPE_PCI_HOST_BRIDGE
, &ambiguous
);
1530 g_assert(!ambiguous
);
1533 o
= object_property_get_qobject(pci_host
, PCIE_HOST_MCFG_BASE
, NULL
);
1537 mcfg
->mcfg_base
= qint_get_int(qobject_to_qint(o
));
1540 o
= object_property_get_qobject(pci_host
, PCIE_HOST_MCFG_SIZE
, NULL
);
1542 mcfg
->mcfg_size
= qint_get_int(qobject_to_qint(o
));
1547 static bool acpi_has_iommu(void)
1550 Object
*intel_iommu
;
1552 intel_iommu
= object_resolve_path_type("", TYPE_INTEL_IOMMU_DEVICE
,
1554 return intel_iommu
&& !ambiguous
;
1558 void acpi_build(PcGuestInfo
*guest_info
, AcpiBuildTables
*tables
)
1560 GArray
*table_offsets
;
1561 unsigned facs
, ssdt
, dsdt
, rsdt
;
1570 acpi_get_cpu_info(&cpu
);
1571 acpi_get_pm_info(&pm
);
1572 acpi_get_dsdt(&misc
);
1573 acpi_get_misc_info(&misc
);
1574 acpi_get_pci_info(&pci
);
1576 table_offsets
= g_array_new(false, true /* clear */,
1578 ACPI_BUILD_DPRINTF("init ACPI tables\n");
1580 bios_linker_loader_alloc(tables
->linker
, ACPI_BUILD_TABLE_FILE
,
1581 64 /* Ensure FACS is aligned */,
1582 false /* high memory */);
1585 * FACS is pointed to by FADT.
1586 * We place it first since it's the only table that has alignment
1589 facs
= tables
->table_data
->len
;
1590 build_facs(tables
->table_data
, tables
->linker
, guest_info
);
1592 /* DSDT is pointed to by FADT */
1593 dsdt
= tables
->table_data
->len
;
1594 build_dsdt(tables
->table_data
, tables
->linker
, &misc
);
1596 /* Count the size of the DSDT and SSDT, we will need it for legacy
1597 * sizing of ACPI tables.
1599 aml_len
+= tables
->table_data
->len
- dsdt
;
1601 /* ACPI tables pointed to by RSDT */
1602 acpi_add_table(table_offsets
, tables
->table_data
);
1603 build_fadt(tables
->table_data
, tables
->linker
, &pm
, facs
, dsdt
);
1605 ssdt
= tables
->table_data
->len
;
1606 acpi_add_table(table_offsets
, tables
->table_data
);
1607 build_ssdt(tables
->table_data
, tables
->linker
, &cpu
, &pm
, &misc
, &pci
,
1609 aml_len
+= tables
->table_data
->len
- ssdt
;
1611 acpi_add_table(table_offsets
, tables
->table_data
);
1612 build_madt(tables
->table_data
, tables
->linker
, &cpu
, guest_info
);
1614 if (misc
.has_hpet
) {
1615 acpi_add_table(table_offsets
, tables
->table_data
);
1616 build_hpet(tables
->table_data
, tables
->linker
);
1619 acpi_add_table(table_offsets
, tables
->table_data
);
1620 build_tpm_tcpa(tables
->table_data
, tables
->linker
, tables
->tcpalog
);
1622 acpi_add_table(table_offsets
, tables
->table_data
);
1623 build_tpm_ssdt(tables
->table_data
, tables
->linker
);
1625 if (guest_info
->numa_nodes
) {
1626 acpi_add_table(table_offsets
, tables
->table_data
);
1627 build_srat(tables
->table_data
, tables
->linker
, guest_info
);
1629 if (acpi_get_mcfg(&mcfg
)) {
1630 acpi_add_table(table_offsets
, tables
->table_data
);
1631 build_mcfg_q35(tables
->table_data
, tables
->linker
, &mcfg
);
1633 if (acpi_has_iommu()) {
1634 acpi_add_table(table_offsets
, tables
->table_data
);
1635 build_dmar_q35(tables
->table_data
, tables
->linker
);
1638 /* Add tables supplied by user (if any) */
1639 for (u
= acpi_table_first(); u
; u
= acpi_table_next(u
)) {
1640 unsigned len
= acpi_table_len(u
);
1642 acpi_add_table(table_offsets
, tables
->table_data
);
1643 g_array_append_vals(tables
->table_data
, u
, len
);
1646 /* RSDT is pointed to by RSDP */
1647 rsdt
= tables
->table_data
->len
;
1648 build_rsdt(tables
->table_data
, tables
->linker
, table_offsets
);
1650 /* RSDP is in FSEG memory, so allocate it separately */
1651 build_rsdp(tables
->rsdp
, tables
->linker
, rsdt
);
1653 /* We'll expose it all to Guest so we want to reduce
1654 * chance of size changes.
1655 * RSDP is small so it's easy to keep it immutable, no need to
1656 * bother with alignment.
1658 * We used to align the tables to 4k, but of course this would
1659 * too simple to be enough. 4k turned out to be too small an
1660 * alignment very soon, and in fact it is almost impossible to
1661 * keep the table size stable for all (max_cpus, max_memory_slots)
1662 * combinations. So the table size is always 64k for pc-i440fx-2.1
1663 * and we give an error if the table grows beyond that limit.
1665 * We still have the problem of migrating from "-M pc-i440fx-2.0". For
1666 * that, we exploit the fact that QEMU 2.1 generates _smaller_ tables
1667 * than 2.0 and we can always pad the smaller tables with zeros. We can
1668 * then use the exact size of the 2.0 tables.
1670 * All this is for PIIX4, since QEMU 2.0 didn't support Q35 migration.
1672 if (guest_info
->legacy_acpi_table_size
) {
1673 /* Subtracting aml_len gives the size of fixed tables. Then add the
1674 * size of the PIIX4 DSDT/SSDT in QEMU 2.0.
1676 int legacy_aml_len
=
1677 guest_info
->legacy_acpi_table_size
+
1678 ACPI_BUILD_LEGACY_CPU_AML_SIZE
* max_cpus
;
1679 int legacy_table_size
=
1680 ROUND_UP(tables
->table_data
->len
- aml_len
+ legacy_aml_len
,
1681 ACPI_BUILD_ALIGN_SIZE
);
1682 if (tables
->table_data
->len
> legacy_table_size
) {
1683 /* Should happen only with PCI bridges and -M pc-i440fx-2.0. */
1684 error_report("Warning: migration may not work.");
1686 g_array_set_size(tables
->table_data
, legacy_table_size
);
1688 /* Make sure we have a buffer in case we need to resize the tables. */
1689 if (tables
->table_data
->len
> ACPI_BUILD_TABLE_SIZE
/ 2) {
1690 /* As of QEMU 2.1, this fires with 160 VCPUs and 255 memory slots. */
1691 error_report("Warning: ACPI tables are larger than 64k.");
1692 error_report("Warning: migration may not work.");
1693 error_report("Warning: please remove CPUs, NUMA nodes, "
1694 "memory slots or PCI bridges.");
1696 acpi_align_size(tables
->table_data
, ACPI_BUILD_TABLE_SIZE
);
1699 acpi_align_size(tables
->linker
, ACPI_BUILD_ALIGN_SIZE
);
1701 /* Cleanup memory that's no longer used. */
1702 g_array_free(table_offsets
, true);
1705 static void acpi_build_update(void *build_opaque
, uint32_t offset
)
1707 AcpiBuildState
*build_state
= build_opaque
;
1708 AcpiBuildTables tables
;
1710 /* No state to update or already patched? Nothing to do. */
1711 if (!build_state
|| build_state
->patched
) {
1714 build_state
->patched
= 1;
1716 acpi_build_tables_init(&tables
);
1718 acpi_build(build_state
->guest_info
, &tables
);
1720 assert(acpi_data_len(tables
.table_data
) == build_state
->table_size
);
1721 memcpy(qemu_get_ram_ptr(build_state
->table_ram
), tables
.table_data
->data
,
1722 build_state
->table_size
);
1724 cpu_physical_memory_set_dirty_range_nocode(build_state
->table_ram
,
1725 build_state
->table_size
);
1727 acpi_build_tables_cleanup(&tables
, true);
1730 static void acpi_build_reset(void *build_opaque
)
1732 AcpiBuildState
*build_state
= build_opaque
;
1733 build_state
->patched
= 0;
1736 static ram_addr_t
acpi_add_rom_blob(AcpiBuildState
*build_state
, GArray
*blob
,
1739 return rom_add_blob(name
, blob
->data
, acpi_data_len(blob
), -1, name
,
1740 acpi_build_update
, build_state
);
1743 static const VMStateDescription vmstate_acpi_build
= {
1744 .name
= "acpi_build",
1746 .minimum_version_id
= 1,
1747 .fields
= (VMStateField
[]) {
1748 VMSTATE_UINT8(patched
, AcpiBuildState
),
1749 VMSTATE_END_OF_LIST()
1753 void acpi_setup(PcGuestInfo
*guest_info
)
1755 AcpiBuildTables tables
;
1756 AcpiBuildState
*build_state
;
1758 if (!guest_info
->fw_cfg
) {
1759 ACPI_BUILD_DPRINTF("No fw cfg. Bailing out.\n");
1763 if (!guest_info
->has_acpi_build
) {
1764 ACPI_BUILD_DPRINTF("ACPI build disabled. Bailing out.\n");
1768 if (!acpi_enabled
) {
1769 ACPI_BUILD_DPRINTF("ACPI disabled. Bailing out.\n");
1773 build_state
= g_malloc0(sizeof *build_state
);
1775 build_state
->guest_info
= guest_info
;
1777 acpi_set_pci_info();
1779 acpi_build_tables_init(&tables
);
1780 acpi_build(build_state
->guest_info
, &tables
);
1782 /* Now expose it all to Guest */
1783 build_state
->table_ram
= acpi_add_rom_blob(build_state
, tables
.table_data
,
1784 ACPI_BUILD_TABLE_FILE
);
1785 assert(build_state
->table_ram
!= RAM_ADDR_MAX
);
1786 build_state
->table_size
= acpi_data_len(tables
.table_data
);
1788 acpi_add_rom_blob(NULL
, tables
.linker
, "etc/table-loader");
1790 fw_cfg_add_file(guest_info
->fw_cfg
, ACPI_BUILD_TPMLOG_FILE
,
1791 tables
.tcpalog
->data
, acpi_data_len(tables
.tcpalog
));
1794 * RSDP is small so it's easy to keep it immutable, no need to
1795 * bother with ROM blobs.
1797 fw_cfg_add_file(guest_info
->fw_cfg
, ACPI_BUILD_RSDP_FILE
,
1798 tables
.rsdp
->data
, acpi_data_len(tables
.rsdp
));
1800 qemu_register_reset(acpi_build_reset
, build_state
);
1801 acpi_build_reset(build_state
);
1802 vmstate_register(NULL
, 0, &vmstate_acpi_build
, build_state
);
1804 /* Cleanup tables but don't free the memory: we track it
1807 acpi_build_tables_cleanup(&tables
, false);