1 /* Support for generating ACPI tables and passing them to Guests
3 * Copyright (C) 2015 Red Hat Inc
5 * Author: Michael S. Tsirkin <mst@redhat.com>
6 * Author: Igor Mammedov <imammedo@redhat.com>
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, see <http://www.gnu.org/licenses/>.
22 #include <glib/gprintf.h>
28 #include "hw/acpi/aml-build.h"
29 #include "qemu/bswap.h"
30 #include "qemu/bitops.h"
31 #include "hw/acpi/bios-linker-loader.h"
33 static GArray
*build_alloc_array(void)
35 return g_array_new(false, true /* clear */, 1);
38 static void build_free_array(GArray
*array
)
40 g_array_free(array
, true);
43 static void build_prepend_byte(GArray
*array
, uint8_t val
)
45 g_array_prepend_val(array
, val
);
48 static void build_append_byte(GArray
*array
, uint8_t val
)
50 g_array_append_val(array
, val
);
53 static void build_append_array(GArray
*array
, GArray
*val
)
55 g_array_append_vals(array
, val
->data
, val
->len
);
58 #define ACPI_NAMESEG_LEN 4
61 build_append_nameseg(GArray
*array
, const char *seg
)
66 assert(len
<= ACPI_NAMESEG_LEN
);
68 g_array_append_vals(array
, seg
, len
);
69 /* Pad up to ACPI_NAMESEG_LEN characters if necessary. */
70 g_array_append_vals(array
, "____", ACPI_NAMESEG_LEN
- len
);
73 static void GCC_FMT_ATTR(2, 0)
74 build_append_namestringv(GArray
*array
, const char *format
, va_list ap
)
81 s
= g_strdup_vprintf(format
, ap
);
82 segs
= g_strsplit(s
, ".", 0);
92 * ACPI 5.0 spec: 20.2.2 Name Objects Encoding:
93 * "SegCount can be from 1 to 255"
95 assert(seg_count
> 0 && seg_count
<= 255);
97 /* handle RootPath || PrefixPath */
99 while (*s
== '\\' || *s
== '^') {
100 build_append_byte(array
, *s
);
107 build_append_byte(array
, 0x00); /* NullName */
109 build_append_nameseg(array
, s
);
114 build_append_byte(array
, 0x2E); /* DualNamePrefix */
115 build_append_nameseg(array
, s
);
116 build_append_nameseg(array
, segs
[1]);
119 build_append_byte(array
, 0x2F); /* MultiNamePrefix */
120 build_append_byte(array
, seg_count
);
122 /* handle the 1st segment manually due to prefix/root path */
123 build_append_nameseg(array
, s
);
125 /* add the rest of segments */
126 segs_iter
= segs
+ 1;
128 build_append_nameseg(array
, *segs_iter
);
137 static void build_append_namestring(GArray
*array
, const char *format
, ...)
141 va_start(ap
, format
);
142 build_append_namestringv(array
, format
, ap
);
146 /* 5.4 Definition Block Encoding */
148 PACKAGE_LENGTH_1BYTE_SHIFT
= 6, /* Up to 63 - use extra 2 bits. */
149 PACKAGE_LENGTH_2BYTE_SHIFT
= 4,
150 PACKAGE_LENGTH_3BYTE_SHIFT
= 12,
151 PACKAGE_LENGTH_4BYTE_SHIFT
= 20,
155 build_prepend_package_length(GArray
*package
, unsigned length
, bool incl_self
)
158 unsigned length_bytes
;
160 if (length
+ 1 < (1 << PACKAGE_LENGTH_1BYTE_SHIFT
)) {
162 } else if (length
+ 2 < (1 << PACKAGE_LENGTH_3BYTE_SHIFT
)) {
164 } else if (length
+ 3 < (1 << PACKAGE_LENGTH_4BYTE_SHIFT
)) {
171 * NamedField uses PkgLength encoding but it doesn't include length
172 * of PkgLength itself.
176 * PkgLength is the length of the inclusive length of the data
177 * and PkgLength's length itself when used for terms with
180 length
+= length_bytes
;
183 switch (length_bytes
) {
186 build_prepend_byte(package
, byte
);
189 byte
= length
>> PACKAGE_LENGTH_4BYTE_SHIFT
;
190 build_prepend_byte(package
, byte
);
191 length
&= (1 << PACKAGE_LENGTH_4BYTE_SHIFT
) - 1;
194 byte
= length
>> PACKAGE_LENGTH_3BYTE_SHIFT
;
195 build_prepend_byte(package
, byte
);
196 length
&= (1 << PACKAGE_LENGTH_3BYTE_SHIFT
) - 1;
199 byte
= length
>> PACKAGE_LENGTH_2BYTE_SHIFT
;
200 build_prepend_byte(package
, byte
);
201 length
&= (1 << PACKAGE_LENGTH_2BYTE_SHIFT
) - 1;
205 * Most significant two bits of byte zero indicate how many following bytes
206 * are in PkgLength encoding.
208 byte
= ((length_bytes
- 1) << PACKAGE_LENGTH_1BYTE_SHIFT
) | length
;
209 build_prepend_byte(package
, byte
);
213 build_append_pkg_length(GArray
*array
, unsigned length
, bool incl_self
)
215 GArray
*tmp
= build_alloc_array();
217 build_prepend_package_length(tmp
, length
, incl_self
);
218 build_append_array(array
, tmp
);
219 build_free_array(tmp
);
222 static void build_package(GArray
*package
, uint8_t op
)
224 build_prepend_package_length(package
, package
->len
, true);
225 build_prepend_byte(package
, op
);
228 static void build_extop_package(GArray
*package
, uint8_t op
)
230 build_package(package
, op
);
231 build_prepend_byte(package
, 0x5B); /* ExtOpPrefix */
234 static void build_append_int_noprefix(GArray
*table
, uint64_t value
, int size
)
238 for (i
= 0; i
< size
; ++i
) {
239 build_append_byte(table
, value
& 0xFF);
244 static void build_append_int(GArray
*table
, uint64_t value
)
247 build_append_byte(table
, 0x00); /* ZeroOp */
248 } else if (value
== 0x01) {
249 build_append_byte(table
, 0x01); /* OneOp */
250 } else if (value
<= 0xFF) {
251 build_append_byte(table
, 0x0A); /* BytePrefix */
252 build_append_int_noprefix(table
, value
, 1);
253 } else if (value
<= 0xFFFF) {
254 build_append_byte(table
, 0x0B); /* WordPrefix */
255 build_append_int_noprefix(table
, value
, 2);
256 } else if (value
<= 0xFFFFFFFF) {
257 build_append_byte(table
, 0x0C); /* DWordPrefix */
258 build_append_int_noprefix(table
, value
, 4);
260 build_append_byte(table
, 0x0E); /* QWordPrefix */
261 build_append_int_noprefix(table
, value
, 8);
265 static GPtrArray
*alloc_list
;
267 static Aml
*aml_alloc(void)
269 Aml
*var
= g_new0(typeof(*var
), 1);
271 g_ptr_array_add(alloc_list
, var
);
272 var
->block_flags
= AML_NO_OPCODE
;
273 var
->buf
= build_alloc_array();
277 static Aml
*aml_opcode(uint8_t op
)
279 Aml
*var
= aml_alloc();
282 var
->block_flags
= AML_OPCODE
;
286 static Aml
*aml_bundle(uint8_t op
, AmlBlockFlags flags
)
288 Aml
*var
= aml_alloc();
291 var
->block_flags
= flags
;
295 static void aml_free(gpointer data
, gpointer user_data
)
298 build_free_array(var
->buf
);
302 Aml
*init_aml_allocator(void)
307 alloc_list
= g_ptr_array_new();
312 void free_aml_allocator(void)
314 g_ptr_array_foreach(alloc_list
, aml_free
, NULL
);
315 g_ptr_array_free(alloc_list
, true);
319 /* pack data with DefBuffer encoding */
320 static void build_buffer(GArray
*array
, uint8_t op
)
322 GArray
*data
= build_alloc_array();
324 build_append_int(data
, array
->len
);
325 g_array_prepend_vals(array
, data
->data
, data
->len
);
326 build_free_array(data
);
327 build_package(array
, op
);
330 void aml_append(Aml
*parent_ctx
, Aml
*child
)
332 GArray
*buf
= build_alloc_array();
333 build_append_array(buf
, child
->buf
);
335 switch (child
->block_flags
) {
337 build_append_byte(parent_ctx
->buf
, child
->op
);
339 case AML_EXT_PACKAGE
:
340 build_extop_package(buf
, child
->op
);
343 build_package(buf
, child
->op
);
345 case AML_RES_TEMPLATE
:
346 build_append_byte(buf
, 0x79); /* EndTag */
348 * checksum operations are treated as succeeded if checksum
349 * field is zero. [ACPI Spec 1.0b, 6.4.2.8 End Tag]
351 build_append_byte(buf
, 0);
352 /* fall through, to pack resources in buffer */
354 build_buffer(buf
, child
->op
);
362 build_append_array(parent_ctx
->buf
, buf
);
363 build_free_array(buf
);
366 /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefScope */
367 Aml
*aml_scope(const char *name_format
, ...)
370 Aml
*var
= aml_bundle(0x10 /* ScopeOp */, AML_PACKAGE
);
371 va_start(ap
, name_format
);
372 build_append_namestringv(var
->buf
, name_format
, ap
);
377 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefReturn */
378 Aml
*aml_return(Aml
*val
)
380 Aml
*var
= aml_opcode(0xA4 /* ReturnOp */);
381 aml_append(var
, val
);
386 * ACPI 1.0b: 16.2.3 Data Objects Encoding:
387 * encodes: ByteConst, WordConst, DWordConst, QWordConst, ZeroOp, OneOp
389 Aml
*aml_int(const uint64_t val
)
391 Aml
*var
= aml_alloc();
392 build_append_int(var
->buf
, val
);
397 * helper to construct NameString, which returns Aml object
398 * for using with aml_append or other aml_* terms
400 Aml
*aml_name(const char *name_format
, ...)
403 Aml
*var
= aml_alloc();
404 va_start(ap
, name_format
);
405 build_append_namestringv(var
->buf
, name_format
, ap
);
410 /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefName */
411 Aml
*aml_name_decl(const char *name
, Aml
*val
)
413 Aml
*var
= aml_opcode(0x08 /* NameOp */);
414 build_append_namestring(var
->buf
, "%s", name
);
415 aml_append(var
, val
);
419 /* ACPI 1.0b: 16.2.6.1 Arg Objects Encoding */
420 Aml
*aml_arg(int pos
)
423 uint8_t op
= 0x68 /* ARG0 op */ + pos
;
426 var
= aml_opcode(op
);
430 /* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToInteger */
431 Aml
*aml_to_integer(Aml
*arg
)
433 Aml
*var
= aml_opcode(0x99 /* ToIntegerOp */);
434 aml_append(var
, arg
);
435 build_append_byte(var
->buf
, 0x00 /* NullNameOp */);
439 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefStore */
440 Aml
*aml_store(Aml
*val
, Aml
*target
)
442 Aml
*var
= aml_opcode(0x70 /* StoreOp */);
443 aml_append(var
, val
);
444 aml_append(var
, target
);
449 * build_opcode_2arg_dst:
453 * @dst: optional target to store to, set to NULL if it's not required
455 * An internal helper to compose AML terms that have
456 * "Op Operand Operand Target"
459 * Returns: The newly allocated and composed according to patter Aml object.
462 build_opcode_2arg_dst(uint8_t op
, Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
464 Aml
*var
= aml_opcode(op
);
465 aml_append(var
, arg1
);
466 aml_append(var
, arg2
);
468 aml_append(var
, dst
);
470 build_append_byte(var
->buf
, 0x00 /* NullNameOp */);
475 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAnd */
476 Aml
*aml_and(Aml
*arg1
, Aml
*arg2
)
478 return build_opcode_2arg_dst(0x7B /* AndOp */, arg1
, arg2
, NULL
);
481 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefOr */
482 Aml
*aml_or(Aml
*arg1
, Aml
*arg2
)
484 return build_opcode_2arg_dst(0x7D /* OrOp */, arg1
, arg2
, NULL
);
487 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLOr */
488 Aml
*aml_lor(Aml
*arg1
, Aml
*arg2
)
490 Aml
*var
= aml_opcode(0x91 /* LOrOp */);
491 aml_append(var
, arg1
);
492 aml_append(var
, arg2
);
496 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftLeft */
497 Aml
*aml_shiftleft(Aml
*arg1
, Aml
*count
)
499 return build_opcode_2arg_dst(0x79 /* ShiftLeftOp */, arg1
, count
, NULL
);
502 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */
503 Aml
*aml_shiftright(Aml
*arg1
, Aml
*count
, Aml
*dst
)
505 return build_opcode_2arg_dst(0x7A /* ShiftRightOp */, arg1
, count
, dst
);
508 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */
509 Aml
*aml_lless(Aml
*arg1
, Aml
*arg2
)
511 Aml
*var
= aml_opcode(0x95 /* LLessOp */);
512 aml_append(var
, arg1
);
513 aml_append(var
, arg2
);
517 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAdd */
518 Aml
*aml_add(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
520 return build_opcode_2arg_dst(0x72 /* AddOp */, arg1
, arg2
, dst
);
523 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSubtract */
524 Aml
*aml_subtract(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
526 return build_opcode_2arg_dst(0x74 /* SubtractOp */, arg1
, arg2
, dst
);
529 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIncrement */
530 Aml
*aml_increment(Aml
*arg
)
532 Aml
*var
= aml_opcode(0x75 /* IncrementOp */);
533 aml_append(var
, arg
);
537 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDecrement */
538 Aml
*aml_decrement(Aml
*arg
)
540 Aml
*var
= aml_opcode(0x76 /* DecrementOp */);
541 aml_append(var
, arg
);
545 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIndex */
546 Aml
*aml_index(Aml
*arg1
, Aml
*idx
)
548 return build_opcode_2arg_dst(0x88 /* IndexOp */, arg1
, idx
, NULL
);
551 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefNotify */
552 Aml
*aml_notify(Aml
*arg1
, Aml
*arg2
)
554 Aml
*var
= aml_opcode(0x86 /* NotifyOp */);
555 aml_append(var
, arg1
);
556 aml_append(var
, arg2
);
560 /* helper to call method with 1 argument */
561 Aml
*aml_call0(const char *method
)
563 Aml
*var
= aml_alloc();
564 build_append_namestring(var
->buf
, "%s", method
);
568 /* helper to call method with 1 argument */
569 Aml
*aml_call1(const char *method
, Aml
*arg1
)
571 Aml
*var
= aml_alloc();
572 build_append_namestring(var
->buf
, "%s", method
);
573 aml_append(var
, arg1
);
577 /* helper to call method with 2 arguments */
578 Aml
*aml_call2(const char *method
, Aml
*arg1
, Aml
*arg2
)
580 Aml
*var
= aml_alloc();
581 build_append_namestring(var
->buf
, "%s", method
);
582 aml_append(var
, arg1
);
583 aml_append(var
, arg2
);
587 /* helper to call method with 3 arguments */
588 Aml
*aml_call3(const char *method
, Aml
*arg1
, Aml
*arg2
, Aml
*arg3
)
590 Aml
*var
= aml_alloc();
591 build_append_namestring(var
->buf
, "%s", method
);
592 aml_append(var
, arg1
);
593 aml_append(var
, arg2
);
594 aml_append(var
, arg3
);
598 /* helper to call method with 4 arguments */
599 Aml
*aml_call4(const char *method
, Aml
*arg1
, Aml
*arg2
, Aml
*arg3
, Aml
*arg4
)
601 Aml
*var
= aml_alloc();
602 build_append_namestring(var
->buf
, "%s", method
);
603 aml_append(var
, arg1
);
604 aml_append(var
, arg2
);
605 aml_append(var
, arg3
);
606 aml_append(var
, arg4
);
611 * ACPI 5.0: 6.4.3.8.1 GPIO Connection Descriptor
612 * Type 1, Large Item Name 0xC
615 static Aml
*aml_gpio_connection(AmlGpioConnectionType type
,
616 AmlConsumerAndProducer con_and_pro
,
617 uint8_t flags
, AmlPinConfig pin_config
,
618 uint16_t output_drive
,
619 uint16_t debounce_timeout
,
620 const uint32_t pin_list
[], uint32_t pin_count
,
621 const char *resource_source_name
,
622 const uint8_t *vendor_data
,
623 uint16_t vendor_data_len
)
625 Aml
*var
= aml_alloc();
626 const uint16_t min_desc_len
= 0x16;
627 uint16_t resource_source_name_len
, length
;
628 uint16_t pin_table_offset
, resource_source_name_offset
, vendor_data_offset
;
631 assert(resource_source_name
);
632 resource_source_name_len
= strlen(resource_source_name
) + 1;
633 length
= min_desc_len
+ resource_source_name_len
+ vendor_data_len
;
634 pin_table_offset
= min_desc_len
+ 1;
635 resource_source_name_offset
= pin_table_offset
+ pin_count
* 2;
636 vendor_data_offset
= resource_source_name_offset
+ resource_source_name_len
;
638 build_append_byte(var
->buf
, 0x8C); /* GPIO Connection Descriptor */
639 build_append_int_noprefix(var
->buf
, length
, 2); /* Length */
640 build_append_byte(var
->buf
, 1); /* Revision ID */
641 build_append_byte(var
->buf
, type
); /* GPIO Connection Type */
642 /* General Flags (2 bytes) */
643 build_append_int_noprefix(var
->buf
, con_and_pro
, 2);
644 /* Interrupt and IO Flags (2 bytes) */
645 build_append_int_noprefix(var
->buf
, flags
, 2);
646 /* Pin Configuration 0 = Default 1 = Pull-up 2 = Pull-down 3 = No Pull */
647 build_append_byte(var
->buf
, pin_config
);
648 /* Output Drive Strength (2 bytes) */
649 build_append_int_noprefix(var
->buf
, output_drive
, 2);
650 /* Debounce Timeout (2 bytes) */
651 build_append_int_noprefix(var
->buf
, debounce_timeout
, 2);
652 /* Pin Table Offset (2 bytes) */
653 build_append_int_noprefix(var
->buf
, pin_table_offset
, 2);
654 build_append_byte(var
->buf
, 0); /* Resource Source Index */
655 /* Resource Source Name Offset (2 bytes) */
656 build_append_int_noprefix(var
->buf
, resource_source_name_offset
, 2);
657 /* Vendor Data Offset (2 bytes) */
658 build_append_int_noprefix(var
->buf
, vendor_data_offset
, 2);
659 /* Vendor Data Length (2 bytes) */
660 build_append_int_noprefix(var
->buf
, vendor_data_len
, 2);
661 /* Pin Number (2n bytes)*/
662 for (i
= 0; i
< pin_count
; i
++) {
663 build_append_int_noprefix(var
->buf
, pin_list
[i
], 2);
666 /* Resource Source Name */
667 build_append_namestring(var
->buf
, "%s", resource_source_name
);
668 build_append_byte(var
->buf
, '\0');
670 /* Vendor-defined Data */
671 if (vendor_data
!= NULL
) {
672 g_array_append_vals(var
->buf
, vendor_data
, vendor_data_len
);
680 * GpioInt(GPIO Interrupt Connection Resource Descriptor Macro)
682 Aml
*aml_gpio_int(AmlConsumerAndProducer con_and_pro
,
683 AmlLevelAndEdge edge_level
,
684 AmlActiveHighAndLow active_level
, AmlShared shared
,
685 AmlPinConfig pin_config
, uint16_t debounce_timeout
,
686 const uint32_t pin_list
[], uint32_t pin_count
,
687 const char *resource_source_name
,
688 const uint8_t *vendor_data
, uint16_t vendor_data_len
)
690 uint8_t flags
= edge_level
| (active_level
<< 1) | (shared
<< 3);
692 return aml_gpio_connection(AML_INTERRUPT_CONNECTION
, con_and_pro
, flags
,
693 pin_config
, 0, debounce_timeout
, pin_list
,
694 pin_count
, resource_source_name
, vendor_data
,
699 * ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor
700 * (Type 1, Large Item Name 0x6)
702 Aml
*aml_memory32_fixed(uint32_t addr
, uint32_t size
,
703 AmlReadAndWrite read_and_write
)
705 Aml
*var
= aml_alloc();
706 build_append_byte(var
->buf
, 0x86); /* Memory32Fixed Resource Descriptor */
707 build_append_byte(var
->buf
, 9); /* Length, bits[7:0] value = 9 */
708 build_append_byte(var
->buf
, 0); /* Length, bits[15:8] value = 0 */
709 build_append_byte(var
->buf
, read_and_write
); /* Write status, 1 rw 0 ro */
711 /* Range base address */
712 build_append_byte(var
->buf
, extract32(addr
, 0, 8)); /* bits[7:0] */
713 build_append_byte(var
->buf
, extract32(addr
, 8, 8)); /* bits[15:8] */
714 build_append_byte(var
->buf
, extract32(addr
, 16, 8)); /* bits[23:16] */
715 build_append_byte(var
->buf
, extract32(addr
, 24, 8)); /* bits[31:24] */
718 build_append_byte(var
->buf
, extract32(size
, 0, 8)); /* bits[7:0] */
719 build_append_byte(var
->buf
, extract32(size
, 8, 8)); /* bits[15:8] */
720 build_append_byte(var
->buf
, extract32(size
, 16, 8)); /* bits[23:16] */
721 build_append_byte(var
->buf
, extract32(size
, 24, 8)); /* bits[31:24] */
726 * ACPI 5.0: 6.4.3.6 Extended Interrupt Descriptor
727 * Type 1, Large Item Name 0x9
729 Aml
*aml_interrupt(AmlConsumerAndProducer con_and_pro
,
730 AmlLevelAndEdge level_and_edge
,
731 AmlActiveHighAndLow high_and_low
, AmlShared shared
,
732 uint32_t *irq_list
, uint8_t irq_count
)
735 Aml
*var
= aml_alloc();
736 uint8_t irq_flags
= con_and_pro
| (level_and_edge
<< 1)
737 | (high_and_low
<< 2) | (shared
<< 3);
738 const int header_bytes_in_len
= 2;
739 uint16_t len
= header_bytes_in_len
+ irq_count
* sizeof(uint32_t);
741 assert(irq_count
> 0);
743 build_append_byte(var
->buf
, 0x89); /* Extended irq descriptor */
744 build_append_byte(var
->buf
, len
& 0xFF); /* Length, bits[7:0] */
745 build_append_byte(var
->buf
, len
>> 8); /* Length, bits[15:8] */
746 build_append_byte(var
->buf
, irq_flags
); /* Interrupt Vector Information. */
747 build_append_byte(var
->buf
, irq_count
); /* Interrupt table length */
749 /* Interrupt Number List */
750 for (i
= 0; i
< irq_count
; i
++) {
751 build_append_int_noprefix(var
->buf
, irq_list
[i
], 4);
756 /* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */
757 Aml
*aml_io(AmlIODecode dec
, uint16_t min_base
, uint16_t max_base
,
758 uint8_t aln
, uint8_t len
)
760 Aml
*var
= aml_alloc();
761 build_append_byte(var
->buf
, 0x47); /* IO port descriptor */
762 build_append_byte(var
->buf
, dec
);
763 build_append_byte(var
->buf
, min_base
& 0xff);
764 build_append_byte(var
->buf
, (min_base
>> 8) & 0xff);
765 build_append_byte(var
->buf
, max_base
& 0xff);
766 build_append_byte(var
->buf
, (max_base
>> 8) & 0xff);
767 build_append_byte(var
->buf
, aln
);
768 build_append_byte(var
->buf
, len
);
773 * ACPI 1.0b: 6.4.2.1.1 ASL Macro for IRQ Descriptor
775 * More verbose description at:
776 * ACPI 5.0: 19.5.64 IRQNoFlags (Interrupt Resource Descriptor Macro)
777 * 6.4.2.1 IRQ Descriptor
779 Aml
*aml_irq_no_flags(uint8_t irq
)
782 Aml
*var
= aml_alloc();
785 build_append_byte(var
->buf
, 0x22); /* IRQ descriptor 2 byte form */
787 irq_mask
= 1U << irq
;
788 build_append_byte(var
->buf
, irq_mask
& 0xFF); /* IRQ mask bits[7:0] */
789 build_append_byte(var
->buf
, irq_mask
>> 8); /* IRQ mask bits[15:8] */
793 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLNot */
794 Aml
*aml_lnot(Aml
*arg
)
796 Aml
*var
= aml_opcode(0x92 /* LNotOp */);
797 aml_append(var
, arg
);
801 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLEqual */
802 Aml
*aml_equal(Aml
*arg1
, Aml
*arg2
)
804 Aml
*var
= aml_opcode(0x93 /* LequalOp */);
805 aml_append(var
, arg1
);
806 aml_append(var
, arg2
);
810 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreater */
811 Aml
*aml_lgreater(Aml
*arg1
, Aml
*arg2
)
813 Aml
*var
= aml_opcode(0x94 /* LGreaterOp */);
814 aml_append(var
, arg1
);
815 aml_append(var
, arg2
);
819 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreaterEqual */
820 Aml
*aml_lgreater_equal(Aml
*arg1
, Aml
*arg2
)
822 /* LGreaterEqualOp := LNotOp LLessOp */
823 Aml
*var
= aml_opcode(0x92 /* LNotOp */);
824 build_append_byte(var
->buf
, 0x95 /* LLessOp */);
825 aml_append(var
, arg1
);
826 aml_append(var
, arg2
);
830 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
831 Aml
*aml_if(Aml
*predicate
)
833 Aml
*var
= aml_bundle(0xA0 /* IfOp */, AML_PACKAGE
);
834 aml_append(var
, predicate
);
838 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefElse */
841 Aml
*var
= aml_bundle(0xA1 /* ElseOp */, AML_PACKAGE
);
845 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefWhile */
846 Aml
*aml_while(Aml
*predicate
)
848 Aml
*var
= aml_bundle(0xA2 /* WhileOp */, AML_PACKAGE
);
849 aml_append(var
, predicate
);
853 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */
854 Aml
*aml_method(const char *name
, int arg_count
, AmlSerializeFlag sflag
)
856 Aml
*var
= aml_bundle(0x14 /* MethodOp */, AML_PACKAGE
);
861 * bit 0-2: ArgCount (0-7)
862 * bit 3: SerializeFlag
865 * bit 4-7: reserved (must be 0)
867 assert(arg_count
< 8);
868 methodflags
= arg_count
| (sflag
<< 3);
870 build_append_namestring(var
->buf
, "%s", name
);
871 build_append_byte(var
->buf
, methodflags
); /* MethodFlags: ArgCount */
875 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefDevice */
876 Aml
*aml_device(const char *name_format
, ...)
879 Aml
*var
= aml_bundle(0x82 /* DeviceOp */, AML_EXT_PACKAGE
);
880 va_start(ap
, name_format
);
881 build_append_namestringv(var
->buf
, name_format
, ap
);
886 /* ACPI 1.0b: 6.4.1 ASL Macros for Resource Descriptors */
887 Aml
*aml_resource_template(void)
889 /* ResourceTemplate is a buffer of Resources with EndTag at the end */
890 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_RES_TEMPLATE
);
894 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefBuffer
895 * Pass byte_list as NULL to request uninitialized buffer to reserve space.
897 Aml
*aml_buffer(int buffer_size
, uint8_t *byte_list
)
900 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
902 for (i
= 0; i
< buffer_size
; i
++) {
903 if (byte_list
== NULL
) {
904 build_append_byte(var
->buf
, 0x0);
906 build_append_byte(var
->buf
, byte_list
[i
]);
913 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefPackage */
914 Aml
*aml_package(uint8_t num_elements
)
916 Aml
*var
= aml_bundle(0x12 /* PackageOp */, AML_PACKAGE
);
917 build_append_byte(var
->buf
, num_elements
);
921 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefOpRegion */
922 Aml
*aml_operation_region(const char *name
, AmlRegionSpace rs
,
923 uint32_t offset
, uint32_t len
)
925 Aml
*var
= aml_alloc();
926 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
927 build_append_byte(var
->buf
, 0x80); /* OpRegionOp */
928 build_append_namestring(var
->buf
, "%s", name
);
929 build_append_byte(var
->buf
, rs
);
930 build_append_int(var
->buf
, offset
);
931 build_append_int(var
->buf
, len
);
935 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: NamedField */
936 Aml
*aml_named_field(const char *name
, unsigned length
)
938 Aml
*var
= aml_alloc();
939 build_append_nameseg(var
->buf
, name
);
940 build_append_pkg_length(var
->buf
, length
, false);
944 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: ReservedField */
945 Aml
*aml_reserved_field(unsigned length
)
947 Aml
*var
= aml_alloc();
948 /* ReservedField := 0x00 PkgLength */
949 build_append_byte(var
->buf
, 0x00);
950 build_append_pkg_length(var
->buf
, length
, false);
954 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefField */
955 Aml
*aml_field(const char *name
, AmlAccessType type
, AmlLockRule lock
,
958 Aml
*var
= aml_bundle(0x81 /* FieldOp */, AML_EXT_PACKAGE
);
959 uint8_t flags
= rule
<< 5 | type
;
961 flags
|= lock
<< 4; /* LockRule at 4 bit offset */
963 build_append_namestring(var
->buf
, "%s", name
);
964 build_append_byte(var
->buf
, flags
);
969 Aml
*create_field_common(int opcode
, Aml
*srcbuf
, Aml
*index
, const char *name
)
971 Aml
*var
= aml_opcode(opcode
);
972 aml_append(var
, srcbuf
);
973 aml_append(var
, index
);
974 build_append_namestring(var
->buf
, "%s", name
);
978 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateDWordField */
979 Aml
*aml_create_dword_field(Aml
*srcbuf
, Aml
*index
, const char *name
)
981 return create_field_common(0x8A /* CreateDWordFieldOp */,
982 srcbuf
, index
, name
);
985 /* ACPI 2.0a: 17.2.4.2 Named Objects Encoding: DefCreateQWordField */
986 Aml
*aml_create_qword_field(Aml
*srcbuf
, Aml
*index
, const char *name
)
988 return create_field_common(0x8F /* CreateQWordFieldOp */,
989 srcbuf
, index
, name
);
992 /* ACPI 1.0b: 16.2.3 Data Objects Encoding: String */
993 Aml
*aml_string(const char *name_format
, ...)
995 Aml
*var
= aml_opcode(0x0D /* StringPrefix */);
1000 va_start(ap
, name_format
);
1001 len
= g_vasprintf(&s
, name_format
, ap
);
1004 g_array_append_vals(var
->buf
, s
, len
+ 1);
1010 /* ACPI 1.0b: 16.2.6.2 Local Objects Encoding */
1011 Aml
*aml_local(int num
)
1014 uint8_t op
= 0x60 /* Local0Op */ + num
;
1017 var
= aml_opcode(op
);
1021 /* ACPI 2.0a: 17.2.2 Data Objects Encoding: DefVarPackage */
1022 Aml
*aml_varpackage(uint32_t num_elements
)
1024 Aml
*var
= aml_bundle(0x13 /* VarPackageOp */, AML_PACKAGE
);
1025 build_append_int(var
->buf
, num_elements
);
1029 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefProcessor */
1030 Aml
*aml_processor(uint8_t proc_id
, uint32_t pblk_addr
, uint8_t pblk_len
,
1031 const char *name_format
, ...)
1034 Aml
*var
= aml_bundle(0x83 /* ProcessorOp */, AML_EXT_PACKAGE
);
1035 va_start(ap
, name_format
);
1036 build_append_namestringv(var
->buf
, name_format
, ap
);
1038 build_append_byte(var
->buf
, proc_id
); /* ProcID */
1039 build_append_int_noprefix(var
->buf
, pblk_addr
, sizeof(pblk_addr
));
1040 build_append_byte(var
->buf
, pblk_len
); /* PblkLen */
1044 static uint8_t Hex2Digit(char c
)
1047 return c
- 'A' + 10;
1053 /* ACPI 1.0b: 15.2.3.6.4.1 EISAID Macro - Convert EISA ID String To Integer */
1054 Aml
*aml_eisaid(const char *str
)
1056 Aml
*var
= aml_alloc();
1059 g_assert(strlen(str
) == 7);
1060 id
= (str
[0] - 0x40) << 26 |
1061 (str
[1] - 0x40) << 21 |
1062 (str
[2] - 0x40) << 16 |
1063 Hex2Digit(str
[3]) << 12 |
1064 Hex2Digit(str
[4]) << 8 |
1065 Hex2Digit(str
[5]) << 4 |
1068 build_append_byte(var
->buf
, 0x0C); /* DWordPrefix */
1069 build_append_int_noprefix(var
->buf
, bswap32(id
), sizeof(id
));
1073 /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor: bytes 3-5 */
1074 static Aml
*aml_as_desc_header(AmlResourceType type
, AmlMinFixed min_fixed
,
1075 AmlMaxFixed max_fixed
, AmlDecode dec
,
1078 uint8_t flags
= max_fixed
| min_fixed
| dec
;
1079 Aml
*var
= aml_alloc();
1081 build_append_byte(var
->buf
, type
);
1082 build_append_byte(var
->buf
, flags
);
1083 build_append_byte(var
->buf
, type_flags
); /* Type Specific Flags */
1087 /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor */
1088 static Aml
*aml_word_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1089 AmlMaxFixed max_fixed
, AmlDecode dec
,
1090 uint16_t addr_gran
, uint16_t addr_min
,
1091 uint16_t addr_max
, uint16_t addr_trans
,
1092 uint16_t len
, uint8_t type_flags
)
1094 Aml
*var
= aml_alloc();
1096 build_append_byte(var
->buf
, 0x88); /* Word Address Space Descriptor */
1097 /* minimum length since we do not encode optional fields */
1098 build_append_byte(var
->buf
, 0x0D);
1099 build_append_byte(var
->buf
, 0x0);
1102 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1103 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1104 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1105 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1106 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1107 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1111 /* ACPI 1.0b: 6.4.3.5.3 DWord Address Space Descriptor */
1112 static Aml
*aml_dword_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1113 AmlMaxFixed max_fixed
, AmlDecode dec
,
1114 uint32_t addr_gran
, uint32_t addr_min
,
1115 uint32_t addr_max
, uint32_t addr_trans
,
1116 uint32_t len
, uint8_t type_flags
)
1118 Aml
*var
= aml_alloc();
1120 build_append_byte(var
->buf
, 0x87); /* DWord Address Space Descriptor */
1121 /* minimum length since we do not encode optional fields */
1122 build_append_byte(var
->buf
, 23);
1123 build_append_byte(var
->buf
, 0x0);
1127 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1128 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1129 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1130 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1131 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1132 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1136 /* ACPI 1.0b: 6.4.3.5.1 QWord Address Space Descriptor */
1137 static Aml
*aml_qword_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1138 AmlMaxFixed max_fixed
, AmlDecode dec
,
1139 uint64_t addr_gran
, uint64_t addr_min
,
1140 uint64_t addr_max
, uint64_t addr_trans
,
1141 uint64_t len
, uint8_t type_flags
)
1143 Aml
*var
= aml_alloc();
1145 build_append_byte(var
->buf
, 0x8A); /* QWord Address Space Descriptor */
1146 /* minimum length since we do not encode optional fields */
1147 build_append_byte(var
->buf
, 0x2B);
1148 build_append_byte(var
->buf
, 0x0);
1151 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1152 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1153 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1154 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1155 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1156 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1161 * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
1163 * More verbose description at:
1164 * ACPI 5.0: 19.5.141 WordBusNumber (Word Bus Number Resource Descriptor Macro)
1166 Aml
*aml_word_bus_number(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1167 AmlDecode dec
, uint16_t addr_gran
,
1168 uint16_t addr_min
, uint16_t addr_max
,
1169 uint16_t addr_trans
, uint16_t len
)
1172 return aml_word_as_desc(AML_BUS_NUMBER_RANGE
, min_fixed
, max_fixed
, dec
,
1173 addr_gran
, addr_min
, addr_max
, addr_trans
, len
, 0);
1177 * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
1179 * More verbose description at:
1180 * ACPI 5.0: 19.5.142 WordIO (Word IO Resource Descriptor Macro)
1182 Aml
*aml_word_io(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1183 AmlDecode dec
, AmlISARanges isa_ranges
,
1184 uint16_t addr_gran
, uint16_t addr_min
,
1185 uint16_t addr_max
, uint16_t addr_trans
,
1189 return aml_word_as_desc(AML_IO_RANGE
, min_fixed
, max_fixed
, dec
,
1190 addr_gran
, addr_min
, addr_max
, addr_trans
, len
,
1195 * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Descriptor
1197 * More verbose description at:
1198 * ACPI 5.0: 19.5.33 DWordIO (DWord IO Resource Descriptor Macro)
1200 Aml
*aml_dword_io(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1201 AmlDecode dec
, AmlISARanges isa_ranges
,
1202 uint32_t addr_gran
, uint32_t addr_min
,
1203 uint32_t addr_max
, uint32_t addr_trans
,
1207 return aml_dword_as_desc(AML_IO_RANGE
, min_fixed
, max_fixed
, dec
,
1208 addr_gran
, addr_min
, addr_max
, addr_trans
, len
,
1213 * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Space Descriptor
1215 * More verbose description at:
1216 * ACPI 5.0: 19.5.34 DWordMemory (DWord Memory Resource Descriptor Macro)
1218 Aml
*aml_dword_memory(AmlDecode dec
, AmlMinFixed min_fixed
,
1219 AmlMaxFixed max_fixed
, AmlCacheable cacheable
,
1220 AmlReadAndWrite read_and_write
,
1221 uint32_t addr_gran
, uint32_t addr_min
,
1222 uint32_t addr_max
, uint32_t addr_trans
,
1225 uint8_t flags
= read_and_write
| (cacheable
<< 1);
1227 return aml_dword_as_desc(AML_MEMORY_RANGE
, min_fixed
, max_fixed
,
1228 dec
, addr_gran
, addr_min
, addr_max
,
1229 addr_trans
, len
, flags
);
1233 * ACPI 1.0b: 6.4.3.5.2 ASL Macros for QWORD Address Space Descriptor
1235 * More verbose description at:
1236 * ACPI 5.0: 19.5.102 QWordMemory (QWord Memory Resource Descriptor Macro)
1238 Aml
*aml_qword_memory(AmlDecode dec
, AmlMinFixed min_fixed
,
1239 AmlMaxFixed max_fixed
, AmlCacheable cacheable
,
1240 AmlReadAndWrite read_and_write
,
1241 uint64_t addr_gran
, uint64_t addr_min
,
1242 uint64_t addr_max
, uint64_t addr_trans
,
1245 uint8_t flags
= read_and_write
| (cacheable
<< 1);
1247 return aml_qword_as_desc(AML_MEMORY_RANGE
, min_fixed
, max_fixed
,
1248 dec
, addr_gran
, addr_min
, addr_max
,
1249 addr_trans
, len
, flags
);
1252 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefSleep */
1253 Aml
*aml_sleep(uint64_t msec
)
1255 Aml
*var
= aml_alloc();
1256 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1257 build_append_byte(var
->buf
, 0x22); /* SleepOp */
1258 aml_append(var
, aml_int(msec
));
1262 static uint8_t Hex2Byte(const char *src
)
1266 hi
= Hex2Digit(src
[0]);
1270 lo
= Hex2Digit(src
[1]);
1273 return (hi
<< 4) | lo
;
1277 * ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro)
1278 * e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
1279 * call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp");
1281 Aml
*aml_touuid(const char *uuid
)
1283 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
1285 assert(strlen(uuid
) == 36);
1286 assert(uuid
[8] == '-');
1287 assert(uuid
[13] == '-');
1288 assert(uuid
[18] == '-');
1289 assert(uuid
[23] == '-');
1291 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 6)); /* dd - at offset 00 */
1292 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 4)); /* cc - at offset 01 */
1293 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 2)); /* bb - at offset 02 */
1294 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 0)); /* aa - at offset 03 */
1296 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 11)); /* ff - at offset 04 */
1297 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 9)); /* ee - at offset 05 */
1299 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 16)); /* hh - at offset 06 */
1300 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 14)); /* gg - at offset 07 */
1302 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 19)); /* ii - at offset 08 */
1303 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 21)); /* jj - at offset 09 */
1305 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 24)); /* kk - at offset 10 */
1306 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 26)); /* ll - at offset 11 */
1307 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 28)); /* mm - at offset 12 */
1308 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 30)); /* nn - at offset 13 */
1309 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 32)); /* oo - at offset 14 */
1310 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 34)); /* pp - at offset 15 */
1316 * ACPI 2.0b: 16.2.3.6.4.3 Unicode Macro (Convert Ascii String To Unicode)
1318 Aml
*aml_unicode(const char *str
)
1321 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
1324 build_append_byte(var
->buf
, str
[i
]);
1325 build_append_byte(var
->buf
, 0);
1327 } while (i
<= strlen(str
));
1332 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDerefOf */
1333 Aml
*aml_derefof(Aml
*arg
)
1335 Aml
*var
= aml_opcode(0x83 /* DerefOfOp */);
1336 aml_append(var
, arg
);
1340 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSizeOf */
1341 Aml
*aml_sizeof(Aml
*arg
)
1343 Aml
*var
= aml_opcode(0x87 /* SizeOfOp */);
1344 aml_append(var
, arg
);
1348 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMutex */
1349 Aml
*aml_mutex(const char *name
, uint8_t sync_level
)
1351 Aml
*var
= aml_alloc();
1352 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1353 build_append_byte(var
->buf
, 0x01); /* MutexOp */
1354 build_append_namestring(var
->buf
, "%s", name
);
1355 assert(!(sync_level
& 0xF0));
1356 build_append_byte(var
->buf
, sync_level
);
1360 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAcquire */
1361 Aml
*aml_acquire(Aml
*mutex
, uint16_t timeout
)
1363 Aml
*var
= aml_alloc();
1364 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1365 build_append_byte(var
->buf
, 0x23); /* AcquireOp */
1366 aml_append(var
, mutex
);
1367 build_append_int_noprefix(var
->buf
, timeout
, sizeof(timeout
));
1371 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefRelease */
1372 Aml
*aml_release(Aml
*mutex
)
1374 Aml
*var
= aml_alloc();
1375 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1376 build_append_byte(var
->buf
, 0x27); /* ReleaseOp */
1377 aml_append(var
, mutex
);
1381 /* ACPI 1.0b: 16.2.5.1 Name Space Modifier Objects Encoding: DefAlias */
1382 Aml
*aml_alias(const char *source_object
, const char *alias_object
)
1384 Aml
*var
= aml_opcode(0x06 /* AliasOp */);
1385 aml_append(var
, aml_name("%s", source_object
));
1386 aml_append(var
, aml_name("%s", alias_object
));
1391 build_header(GArray
*linker
, GArray
*table_data
,
1392 AcpiTableHeader
*h
, const char *sig
, int len
, uint8_t rev
,
1393 const char *oem_table_id
)
1395 memcpy(&h
->signature
, sig
, 4);
1396 h
->length
= cpu_to_le32(len
);
1398 memcpy(h
->oem_id
, ACPI_BUILD_APPNAME6
, 6);
1401 strncpy((char *)h
->oem_table_id
, oem_table_id
, sizeof(h
->oem_table_id
));
1403 memcpy(h
->oem_table_id
, ACPI_BUILD_APPNAME4
, 4);
1404 memcpy(h
->oem_table_id
+ 4, sig
, 4);
1407 h
->oem_revision
= cpu_to_le32(1);
1408 memcpy(h
->asl_compiler_id
, ACPI_BUILD_APPNAME4
, 4);
1409 h
->asl_compiler_revision
= cpu_to_le32(1);
1411 /* Checksum to be filled in by Guest linker */
1412 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_TABLE_FILE
,
1413 table_data
->data
, h
, len
, &h
->checksum
);
1416 void *acpi_data_push(GArray
*table_data
, unsigned size
)
1418 unsigned off
= table_data
->len
;
1419 g_array_set_size(table_data
, off
+ size
);
1420 return table_data
->data
+ off
;
1423 unsigned acpi_data_len(GArray
*table
)
1425 assert(g_array_get_element_size(table
) == 1);
1429 void acpi_add_table(GArray
*table_offsets
, GArray
*table_data
)
1431 uint32_t offset
= cpu_to_le32(table_data
->len
);
1432 g_array_append_val(table_offsets
, offset
);
1435 void acpi_build_tables_init(AcpiBuildTables
*tables
)
1437 tables
->rsdp
= g_array_new(false, true /* clear */, 1);
1438 tables
->table_data
= g_array_new(false, true /* clear */, 1);
1439 tables
->tcpalog
= g_array_new(false, true /* clear */, 1);
1440 tables
->linker
= bios_linker_loader_init();
1443 void acpi_build_tables_cleanup(AcpiBuildTables
*tables
, bool mfre
)
1445 void *linker_data
= bios_linker_loader_cleanup(tables
->linker
);
1446 g_free(linker_data
);
1447 g_array_free(tables
->rsdp
, true);
1448 g_array_free(tables
->table_data
, true);
1449 g_array_free(tables
->tcpalog
, mfre
);
1452 /* Build rsdt table */
1454 build_rsdt(GArray
*table_data
, GArray
*linker
, GArray
*table_offsets
)
1456 AcpiRsdtDescriptorRev1
*rsdt
;
1459 const int table_data_len
= (sizeof(uint32_t) * table_offsets
->len
);
1461 rsdt_len
= sizeof(*rsdt
) + table_data_len
;
1462 rsdt
= acpi_data_push(table_data
, rsdt_len
);
1463 memcpy(rsdt
->table_offset_entry
, table_offsets
->data
, table_data_len
);
1464 for (i
= 0; i
< table_offsets
->len
; ++i
) {
1465 /* rsdt->table_offset_entry to be filled by Guest linker */
1466 bios_linker_loader_add_pointer(linker
,
1467 ACPI_BUILD_TABLE_FILE
,
1468 ACPI_BUILD_TABLE_FILE
,
1469 table_data
, &rsdt
->table_offset_entry
[i
],
1472 build_header(linker
, table_data
,
1473 (void *)rsdt
, "RSDT", rsdt_len
, 1, NULL
);