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: DefShiftLeft */
488 Aml
*aml_shiftleft(Aml
*arg1
, Aml
*count
)
490 return build_opcode_2arg_dst(0x79 /* ShiftLeftOp */, arg1
, count
, NULL
);
493 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */
494 Aml
*aml_shiftright(Aml
*arg1
, Aml
*count
)
496 return build_opcode_2arg_dst(0x7A /* ShiftRightOp */, arg1
, count
, NULL
);
499 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */
500 Aml
*aml_lless(Aml
*arg1
, Aml
*arg2
)
502 Aml
*var
= aml_opcode(0x95 /* LLessOp */);
503 aml_append(var
, arg1
);
504 aml_append(var
, arg2
);
508 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAdd */
509 Aml
*aml_add(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
511 return build_opcode_2arg_dst(0x72 /* AddOp */, arg1
, arg2
, dst
);
514 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSubtract */
515 Aml
*aml_subtract(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
517 return build_opcode_2arg_dst(0x74 /* SubtractOp */, arg1
, arg2
, dst
);
520 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIncrement */
521 Aml
*aml_increment(Aml
*arg
)
523 Aml
*var
= aml_opcode(0x75 /* IncrementOp */);
524 aml_append(var
, arg
);
528 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDecrement */
529 Aml
*aml_decrement(Aml
*arg
)
531 Aml
*var
= aml_opcode(0x76 /* DecrementOp */);
532 aml_append(var
, arg
);
536 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIndex */
537 Aml
*aml_index(Aml
*arg1
, Aml
*idx
)
539 return build_opcode_2arg_dst(0x88 /* IndexOp */, arg1
, idx
, NULL
);
542 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefNotify */
543 Aml
*aml_notify(Aml
*arg1
, Aml
*arg2
)
545 Aml
*var
= aml_opcode(0x86 /* NotifyOp */);
546 aml_append(var
, arg1
);
547 aml_append(var
, arg2
);
551 /* helper to call method with 1 argument */
552 Aml
*aml_call0(const char *method
)
554 Aml
*var
= aml_alloc();
555 build_append_namestring(var
->buf
, "%s", method
);
559 /* helper to call method with 1 argument */
560 Aml
*aml_call1(const char *method
, Aml
*arg1
)
562 Aml
*var
= aml_alloc();
563 build_append_namestring(var
->buf
, "%s", method
);
564 aml_append(var
, arg1
);
568 /* helper to call method with 2 arguments */
569 Aml
*aml_call2(const char *method
, Aml
*arg1
, Aml
*arg2
)
571 Aml
*var
= aml_alloc();
572 build_append_namestring(var
->buf
, "%s", method
);
573 aml_append(var
, arg1
);
574 aml_append(var
, arg2
);
578 /* helper to call method with 3 arguments */
579 Aml
*aml_call3(const char *method
, Aml
*arg1
, Aml
*arg2
, Aml
*arg3
)
581 Aml
*var
= aml_alloc();
582 build_append_namestring(var
->buf
, "%s", method
);
583 aml_append(var
, arg1
);
584 aml_append(var
, arg2
);
585 aml_append(var
, arg3
);
589 /* helper to call method with 4 arguments */
590 Aml
*aml_call4(const char *method
, Aml
*arg1
, Aml
*arg2
, Aml
*arg3
, Aml
*arg4
)
592 Aml
*var
= aml_alloc();
593 build_append_namestring(var
->buf
, "%s", method
);
594 aml_append(var
, arg1
);
595 aml_append(var
, arg2
);
596 aml_append(var
, arg3
);
597 aml_append(var
, arg4
);
602 * ACPI 5.0: 6.4.3.8.1 GPIO Connection Descriptor
603 * Type 1, Large Item Name 0xC
606 static Aml
*aml_gpio_connection(AmlGpioConnectionType type
,
607 AmlConsumerAndProducer con_and_pro
,
608 uint8_t flags
, AmlPinConfig pin_config
,
609 uint16_t output_drive
,
610 uint16_t debounce_timeout
,
611 const uint32_t pin_list
[], uint32_t pin_count
,
612 const char *resource_source_name
,
613 const uint8_t *vendor_data
,
614 uint16_t vendor_data_len
)
616 Aml
*var
= aml_alloc();
617 const uint16_t min_desc_len
= 0x16;
618 uint16_t resource_source_name_len
, length
;
619 uint16_t pin_table_offset
, resource_source_name_offset
, vendor_data_offset
;
622 assert(resource_source_name
);
623 resource_source_name_len
= strlen(resource_source_name
) + 1;
624 length
= min_desc_len
+ resource_source_name_len
+ vendor_data_len
;
625 pin_table_offset
= min_desc_len
+ 1;
626 resource_source_name_offset
= pin_table_offset
+ pin_count
* 2;
627 vendor_data_offset
= resource_source_name_offset
+ resource_source_name_len
;
629 build_append_byte(var
->buf
, 0x8C); /* GPIO Connection Descriptor */
630 build_append_int_noprefix(var
->buf
, length
, 2); /* Length */
631 build_append_byte(var
->buf
, 1); /* Revision ID */
632 build_append_byte(var
->buf
, type
); /* GPIO Connection Type */
633 /* General Flags (2 bytes) */
634 build_append_int_noprefix(var
->buf
, con_and_pro
, 2);
635 /* Interrupt and IO Flags (2 bytes) */
636 build_append_int_noprefix(var
->buf
, flags
, 2);
637 /* Pin Configuration 0 = Default 1 = Pull-up 2 = Pull-down 3 = No Pull */
638 build_append_byte(var
->buf
, pin_config
);
639 /* Output Drive Strength (2 bytes) */
640 build_append_int_noprefix(var
->buf
, output_drive
, 2);
641 /* Debounce Timeout (2 bytes) */
642 build_append_int_noprefix(var
->buf
, debounce_timeout
, 2);
643 /* Pin Table Offset (2 bytes) */
644 build_append_int_noprefix(var
->buf
, pin_table_offset
, 2);
645 build_append_byte(var
->buf
, 0); /* Resource Source Index */
646 /* Resource Source Name Offset (2 bytes) */
647 build_append_int_noprefix(var
->buf
, resource_source_name_offset
, 2);
648 /* Vendor Data Offset (2 bytes) */
649 build_append_int_noprefix(var
->buf
, vendor_data_offset
, 2);
650 /* Vendor Data Length (2 bytes) */
651 build_append_int_noprefix(var
->buf
, vendor_data_len
, 2);
652 /* Pin Number (2n bytes)*/
653 for (i
= 0; i
< pin_count
; i
++) {
654 build_append_int_noprefix(var
->buf
, pin_list
[i
], 2);
657 /* Resource Source Name */
658 build_append_namestring(var
->buf
, "%s", resource_source_name
);
659 build_append_byte(var
->buf
, '\0');
661 /* Vendor-defined Data */
662 if (vendor_data
!= NULL
) {
663 g_array_append_vals(var
->buf
, vendor_data
, vendor_data_len
);
671 * GpioInt(GPIO Interrupt Connection Resource Descriptor Macro)
673 Aml
*aml_gpio_int(AmlConsumerAndProducer con_and_pro
,
674 AmlLevelAndEdge edge_level
,
675 AmlActiveHighAndLow active_level
, AmlShared shared
,
676 AmlPinConfig pin_config
, uint16_t debounce_timeout
,
677 const uint32_t pin_list
[], uint32_t pin_count
,
678 const char *resource_source_name
,
679 const uint8_t *vendor_data
, uint16_t vendor_data_len
)
681 uint8_t flags
= edge_level
| (active_level
<< 1) | (shared
<< 3);
683 return aml_gpio_connection(AML_INTERRUPT_CONNECTION
, con_and_pro
, flags
,
684 pin_config
, 0, debounce_timeout
, pin_list
,
685 pin_count
, resource_source_name
, vendor_data
,
690 * ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor
691 * (Type 1, Large Item Name 0x6)
693 Aml
*aml_memory32_fixed(uint32_t addr
, uint32_t size
,
694 AmlReadAndWrite read_and_write
)
696 Aml
*var
= aml_alloc();
697 build_append_byte(var
->buf
, 0x86); /* Memory32Fixed Resource Descriptor */
698 build_append_byte(var
->buf
, 9); /* Length, bits[7:0] value = 9 */
699 build_append_byte(var
->buf
, 0); /* Length, bits[15:8] value = 0 */
700 build_append_byte(var
->buf
, read_and_write
); /* Write status, 1 rw 0 ro */
702 /* Range base address */
703 build_append_byte(var
->buf
, extract32(addr
, 0, 8)); /* bits[7:0] */
704 build_append_byte(var
->buf
, extract32(addr
, 8, 8)); /* bits[15:8] */
705 build_append_byte(var
->buf
, extract32(addr
, 16, 8)); /* bits[23:16] */
706 build_append_byte(var
->buf
, extract32(addr
, 24, 8)); /* bits[31:24] */
709 build_append_byte(var
->buf
, extract32(size
, 0, 8)); /* bits[7:0] */
710 build_append_byte(var
->buf
, extract32(size
, 8, 8)); /* bits[15:8] */
711 build_append_byte(var
->buf
, extract32(size
, 16, 8)); /* bits[23:16] */
712 build_append_byte(var
->buf
, extract32(size
, 24, 8)); /* bits[31:24] */
717 * ACPI 5.0: 6.4.3.6 Extended Interrupt Descriptor
718 * Type 1, Large Item Name 0x9
720 Aml
*aml_interrupt(AmlConsumerAndProducer con_and_pro
,
721 AmlLevelAndEdge level_and_edge
,
722 AmlActiveHighAndLow high_and_low
, AmlShared shared
,
723 uint32_t *irq_list
, uint8_t irq_count
)
726 Aml
*var
= aml_alloc();
727 uint8_t irq_flags
= con_and_pro
| (level_and_edge
<< 1)
728 | (high_and_low
<< 2) | (shared
<< 3);
729 const int header_bytes_in_len
= 2;
730 uint16_t len
= header_bytes_in_len
+ irq_count
* sizeof(uint32_t);
732 assert(irq_count
> 0);
734 build_append_byte(var
->buf
, 0x89); /* Extended irq descriptor */
735 build_append_byte(var
->buf
, len
& 0xFF); /* Length, bits[7:0] */
736 build_append_byte(var
->buf
, len
>> 8); /* Length, bits[15:8] */
737 build_append_byte(var
->buf
, irq_flags
); /* Interrupt Vector Information. */
738 build_append_byte(var
->buf
, irq_count
); /* Interrupt table length */
740 /* Interrupt Number List */
741 for (i
= 0; i
< irq_count
; i
++) {
742 build_append_int_noprefix(var
->buf
, irq_list
[i
], 4);
747 /* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */
748 Aml
*aml_io(AmlIODecode dec
, uint16_t min_base
, uint16_t max_base
,
749 uint8_t aln
, uint8_t len
)
751 Aml
*var
= aml_alloc();
752 build_append_byte(var
->buf
, 0x47); /* IO port descriptor */
753 build_append_byte(var
->buf
, dec
);
754 build_append_byte(var
->buf
, min_base
& 0xff);
755 build_append_byte(var
->buf
, (min_base
>> 8) & 0xff);
756 build_append_byte(var
->buf
, max_base
& 0xff);
757 build_append_byte(var
->buf
, (max_base
>> 8) & 0xff);
758 build_append_byte(var
->buf
, aln
);
759 build_append_byte(var
->buf
, len
);
764 * ACPI 1.0b: 6.4.2.1.1 ASL Macro for IRQ Descriptor
766 * More verbose description at:
767 * ACPI 5.0: 19.5.64 IRQNoFlags (Interrupt Resource Descriptor Macro)
768 * 6.4.2.1 IRQ Descriptor
770 Aml
*aml_irq_no_flags(uint8_t irq
)
773 Aml
*var
= aml_alloc();
776 build_append_byte(var
->buf
, 0x22); /* IRQ descriptor 2 byte form */
778 irq_mask
= 1U << irq
;
779 build_append_byte(var
->buf
, irq_mask
& 0xFF); /* IRQ mask bits[7:0] */
780 build_append_byte(var
->buf
, irq_mask
>> 8); /* IRQ mask bits[15:8] */
784 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLNot */
785 Aml
*aml_lnot(Aml
*arg
)
787 Aml
*var
= aml_opcode(0x92 /* LNotOp */);
788 aml_append(var
, arg
);
792 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLEqual */
793 Aml
*aml_equal(Aml
*arg1
, Aml
*arg2
)
795 Aml
*var
= aml_opcode(0x93 /* LequalOp */);
796 aml_append(var
, arg1
);
797 aml_append(var
, arg2
);
801 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreaterEqual */
802 Aml
*aml_lgreater_equal(Aml
*arg1
, Aml
*arg2
)
804 /* LGreaterEqualOp := LNotOp LLessOp */
805 Aml
*var
= aml_opcode(0x92 /* LNotOp */);
806 build_append_byte(var
->buf
, 0x95 /* LLessOp */);
807 aml_append(var
, arg1
);
808 aml_append(var
, arg2
);
812 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
813 Aml
*aml_if(Aml
*predicate
)
815 Aml
*var
= aml_bundle(0xA0 /* IfOp */, AML_PACKAGE
);
816 aml_append(var
, predicate
);
820 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefElse */
823 Aml
*var
= aml_bundle(0xA1 /* ElseOp */, AML_PACKAGE
);
827 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefWhile */
828 Aml
*aml_while(Aml
*predicate
)
830 Aml
*var
= aml_bundle(0xA2 /* WhileOp */, AML_PACKAGE
);
831 aml_append(var
, predicate
);
835 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */
836 Aml
*aml_method(const char *name
, int arg_count
, AmlSerializeFlag sflag
)
838 Aml
*var
= aml_bundle(0x14 /* MethodOp */, AML_PACKAGE
);
843 * bit 0-2: ArgCount (0-7)
844 * bit 3: SerializeFlag
847 * bit 4-7: reserved (must be 0)
849 assert(arg_count
< 8);
850 methodflags
= arg_count
| (sflag
<< 3);
852 build_append_namestring(var
->buf
, "%s", name
);
853 build_append_byte(var
->buf
, methodflags
); /* MethodFlags: ArgCount */
857 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefDevice */
858 Aml
*aml_device(const char *name_format
, ...)
861 Aml
*var
= aml_bundle(0x82 /* DeviceOp */, AML_EXT_PACKAGE
);
862 va_start(ap
, name_format
);
863 build_append_namestringv(var
->buf
, name_format
, ap
);
868 /* ACPI 1.0b: 6.4.1 ASL Macros for Resource Descriptors */
869 Aml
*aml_resource_template(void)
871 /* ResourceTemplate is a buffer of Resources with EndTag at the end */
872 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_RES_TEMPLATE
);
876 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefBuffer
877 * Pass byte_list as NULL to request uninitialized buffer to reserve space.
879 Aml
*aml_buffer(int buffer_size
, uint8_t *byte_list
)
882 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
884 for (i
= 0; i
< buffer_size
; i
++) {
885 if (byte_list
== NULL
) {
886 build_append_byte(var
->buf
, 0x0);
888 build_append_byte(var
->buf
, byte_list
[i
]);
895 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefPackage */
896 Aml
*aml_package(uint8_t num_elements
)
898 Aml
*var
= aml_bundle(0x12 /* PackageOp */, AML_PACKAGE
);
899 build_append_byte(var
->buf
, num_elements
);
903 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefOpRegion */
904 Aml
*aml_operation_region(const char *name
, AmlRegionSpace rs
,
905 uint32_t offset
, uint32_t len
)
907 Aml
*var
= aml_alloc();
908 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
909 build_append_byte(var
->buf
, 0x80); /* OpRegionOp */
910 build_append_namestring(var
->buf
, "%s", name
);
911 build_append_byte(var
->buf
, rs
);
912 build_append_int(var
->buf
, offset
);
913 build_append_int(var
->buf
, len
);
917 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: NamedField */
918 Aml
*aml_named_field(const char *name
, unsigned length
)
920 Aml
*var
= aml_alloc();
921 build_append_nameseg(var
->buf
, name
);
922 build_append_pkg_length(var
->buf
, length
, false);
926 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: ReservedField */
927 Aml
*aml_reserved_field(unsigned length
)
929 Aml
*var
= aml_alloc();
930 /* ReservedField := 0x00 PkgLength */
931 build_append_byte(var
->buf
, 0x00);
932 build_append_pkg_length(var
->buf
, length
, false);
936 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefField */
937 Aml
*aml_field(const char *name
, AmlAccessType type
, AmlUpdateRule rule
)
939 Aml
*var
= aml_bundle(0x81 /* FieldOp */, AML_EXT_PACKAGE
);
940 uint8_t flags
= rule
<< 5 | type
;
942 build_append_namestring(var
->buf
, "%s", name
);
943 build_append_byte(var
->buf
, flags
);
948 Aml
*create_field_common(int opcode
, Aml
*srcbuf
, Aml
*index
, const char *name
)
950 Aml
*var
= aml_opcode(opcode
);
951 aml_append(var
, srcbuf
);
952 aml_append(var
, index
);
953 build_append_namestring(var
->buf
, "%s", name
);
957 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateDWordField */
958 Aml
*aml_create_dword_field(Aml
*srcbuf
, Aml
*index
, const char *name
)
960 return create_field_common(0x8A /* CreateDWordFieldOp */,
961 srcbuf
, index
, name
);
964 /* ACPI 2.0a: 17.2.4.2 Named Objects Encoding: DefCreateQWordField */
965 Aml
*aml_create_qword_field(Aml
*srcbuf
, Aml
*index
, const char *name
)
967 return create_field_common(0x8F /* CreateQWordFieldOp */,
968 srcbuf
, index
, name
);
971 /* ACPI 1.0b: 16.2.3 Data Objects Encoding: String */
972 Aml
*aml_string(const char *name_format
, ...)
974 Aml
*var
= aml_opcode(0x0D /* StringPrefix */);
979 va_start(ap
, name_format
);
980 len
= g_vasprintf(&s
, name_format
, ap
);
983 g_array_append_vals(var
->buf
, s
, len
+ 1);
989 /* ACPI 1.0b: 16.2.6.2 Local Objects Encoding */
990 Aml
*aml_local(int num
)
993 uint8_t op
= 0x60 /* Local0Op */ + num
;
996 var
= aml_opcode(op
);
1000 /* ACPI 2.0a: 17.2.2 Data Objects Encoding: DefVarPackage */
1001 Aml
*aml_varpackage(uint32_t num_elements
)
1003 Aml
*var
= aml_bundle(0x13 /* VarPackageOp */, AML_PACKAGE
);
1004 build_append_int(var
->buf
, num_elements
);
1008 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefProcessor */
1009 Aml
*aml_processor(uint8_t proc_id
, uint32_t pblk_addr
, uint8_t pblk_len
,
1010 const char *name_format
, ...)
1013 Aml
*var
= aml_bundle(0x83 /* ProcessorOp */, AML_EXT_PACKAGE
);
1014 va_start(ap
, name_format
);
1015 build_append_namestringv(var
->buf
, name_format
, ap
);
1017 build_append_byte(var
->buf
, proc_id
); /* ProcID */
1018 build_append_int_noprefix(var
->buf
, pblk_addr
, sizeof(pblk_addr
));
1019 build_append_byte(var
->buf
, pblk_len
); /* PblkLen */
1023 static uint8_t Hex2Digit(char c
)
1026 return c
- 'A' + 10;
1032 /* ACPI 1.0b: 15.2.3.6.4.1 EISAID Macro - Convert EISA ID String To Integer */
1033 Aml
*aml_eisaid(const char *str
)
1035 Aml
*var
= aml_alloc();
1038 g_assert(strlen(str
) == 7);
1039 id
= (str
[0] - 0x40) << 26 |
1040 (str
[1] - 0x40) << 21 |
1041 (str
[2] - 0x40) << 16 |
1042 Hex2Digit(str
[3]) << 12 |
1043 Hex2Digit(str
[4]) << 8 |
1044 Hex2Digit(str
[5]) << 4 |
1047 build_append_byte(var
->buf
, 0x0C); /* DWordPrefix */
1048 build_append_int_noprefix(var
->buf
, bswap32(id
), sizeof(id
));
1052 /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor: bytes 3-5 */
1053 static Aml
*aml_as_desc_header(AmlResourceType type
, AmlMinFixed min_fixed
,
1054 AmlMaxFixed max_fixed
, AmlDecode dec
,
1057 uint8_t flags
= max_fixed
| min_fixed
| dec
;
1058 Aml
*var
= aml_alloc();
1060 build_append_byte(var
->buf
, type
);
1061 build_append_byte(var
->buf
, flags
);
1062 build_append_byte(var
->buf
, type_flags
); /* Type Specific Flags */
1066 /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor */
1067 static Aml
*aml_word_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1068 AmlMaxFixed max_fixed
, AmlDecode dec
,
1069 uint16_t addr_gran
, uint16_t addr_min
,
1070 uint16_t addr_max
, uint16_t addr_trans
,
1071 uint16_t len
, uint8_t type_flags
)
1073 Aml
*var
= aml_alloc();
1075 build_append_byte(var
->buf
, 0x88); /* Word Address Space Descriptor */
1076 /* minimum length since we do not encode optional fields */
1077 build_append_byte(var
->buf
, 0x0D);
1078 build_append_byte(var
->buf
, 0x0);
1081 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1082 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1083 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1084 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1085 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1086 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1090 /* ACPI 1.0b: 6.4.3.5.3 DWord Address Space Descriptor */
1091 static Aml
*aml_dword_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1092 AmlMaxFixed max_fixed
, AmlDecode dec
,
1093 uint32_t addr_gran
, uint32_t addr_min
,
1094 uint32_t addr_max
, uint32_t addr_trans
,
1095 uint32_t len
, uint8_t type_flags
)
1097 Aml
*var
= aml_alloc();
1099 build_append_byte(var
->buf
, 0x87); /* DWord Address Space Descriptor */
1100 /* minimum length since we do not encode optional fields */
1101 build_append_byte(var
->buf
, 23);
1102 build_append_byte(var
->buf
, 0x0);
1106 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1107 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1108 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1109 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1110 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1111 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1115 /* ACPI 1.0b: 6.4.3.5.1 QWord Address Space Descriptor */
1116 static Aml
*aml_qword_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1117 AmlMaxFixed max_fixed
, AmlDecode dec
,
1118 uint64_t addr_gran
, uint64_t addr_min
,
1119 uint64_t addr_max
, uint64_t addr_trans
,
1120 uint64_t len
, uint8_t type_flags
)
1122 Aml
*var
= aml_alloc();
1124 build_append_byte(var
->buf
, 0x8A); /* QWord Address Space Descriptor */
1125 /* minimum length since we do not encode optional fields */
1126 build_append_byte(var
->buf
, 0x2B);
1127 build_append_byte(var
->buf
, 0x0);
1130 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1131 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1132 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1133 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1134 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1135 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1140 * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
1142 * More verbose description at:
1143 * ACPI 5.0: 19.5.141 WordBusNumber (Word Bus Number Resource Descriptor Macro)
1145 Aml
*aml_word_bus_number(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1146 AmlDecode dec
, uint16_t addr_gran
,
1147 uint16_t addr_min
, uint16_t addr_max
,
1148 uint16_t addr_trans
, uint16_t len
)
1151 return aml_word_as_desc(AML_BUS_NUMBER_RANGE
, min_fixed
, max_fixed
, dec
,
1152 addr_gran
, addr_min
, addr_max
, addr_trans
, len
, 0);
1156 * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
1158 * More verbose description at:
1159 * ACPI 5.0: 19.5.142 WordIO (Word IO Resource Descriptor Macro)
1161 Aml
*aml_word_io(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1162 AmlDecode dec
, AmlISARanges isa_ranges
,
1163 uint16_t addr_gran
, uint16_t addr_min
,
1164 uint16_t addr_max
, uint16_t addr_trans
,
1168 return aml_word_as_desc(AML_IO_RANGE
, min_fixed
, max_fixed
, dec
,
1169 addr_gran
, addr_min
, addr_max
, addr_trans
, len
,
1174 * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Descriptor
1176 * More verbose description at:
1177 * ACPI 5.0: 19.5.33 DWordIO (DWord IO Resource Descriptor Macro)
1179 Aml
*aml_dword_io(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1180 AmlDecode dec
, AmlISARanges isa_ranges
,
1181 uint32_t addr_gran
, uint32_t addr_min
,
1182 uint32_t addr_max
, uint32_t addr_trans
,
1186 return aml_dword_as_desc(AML_IO_RANGE
, min_fixed
, max_fixed
, dec
,
1187 addr_gran
, addr_min
, addr_max
, addr_trans
, len
,
1192 * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Space Descriptor
1194 * More verbose description at:
1195 * ACPI 5.0: 19.5.34 DWordMemory (DWord Memory Resource Descriptor Macro)
1197 Aml
*aml_dword_memory(AmlDecode dec
, AmlMinFixed min_fixed
,
1198 AmlMaxFixed max_fixed
, AmlCacheable cacheable
,
1199 AmlReadAndWrite read_and_write
,
1200 uint32_t addr_gran
, uint32_t addr_min
,
1201 uint32_t addr_max
, uint32_t addr_trans
,
1204 uint8_t flags
= read_and_write
| (cacheable
<< 1);
1206 return aml_dword_as_desc(AML_MEMORY_RANGE
, min_fixed
, max_fixed
,
1207 dec
, addr_gran
, addr_min
, addr_max
,
1208 addr_trans
, len
, flags
);
1212 * ACPI 1.0b: 6.4.3.5.2 ASL Macros for QWORD Address Space Descriptor
1214 * More verbose description at:
1215 * ACPI 5.0: 19.5.102 QWordMemory (QWord Memory Resource Descriptor Macro)
1217 Aml
*aml_qword_memory(AmlDecode dec
, AmlMinFixed min_fixed
,
1218 AmlMaxFixed max_fixed
, AmlCacheable cacheable
,
1219 AmlReadAndWrite read_and_write
,
1220 uint64_t addr_gran
, uint64_t addr_min
,
1221 uint64_t addr_max
, uint64_t addr_trans
,
1224 uint8_t flags
= read_and_write
| (cacheable
<< 1);
1226 return aml_qword_as_desc(AML_MEMORY_RANGE
, min_fixed
, max_fixed
,
1227 dec
, addr_gran
, addr_min
, addr_max
,
1228 addr_trans
, len
, flags
);
1231 static uint8_t Hex2Byte(const char *src
)
1235 hi
= Hex2Digit(src
[0]);
1239 lo
= Hex2Digit(src
[1]);
1242 return (hi
<< 4) | lo
;
1246 * ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro)
1247 * e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
1248 * call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp");
1250 Aml
*aml_touuid(const char *uuid
)
1252 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
1254 assert(strlen(uuid
) == 36);
1255 assert(uuid
[8] == '-');
1256 assert(uuid
[13] == '-');
1257 assert(uuid
[18] == '-');
1258 assert(uuid
[23] == '-');
1260 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 6)); /* dd - at offset 00 */
1261 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 4)); /* cc - at offset 01 */
1262 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 2)); /* bb - at offset 02 */
1263 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 0)); /* aa - at offset 03 */
1265 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 11)); /* ff - at offset 04 */
1266 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 9)); /* ee - at offset 05 */
1268 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 16)); /* hh - at offset 06 */
1269 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 14)); /* gg - at offset 07 */
1271 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 19)); /* ii - at offset 08 */
1272 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 21)); /* jj - at offset 09 */
1274 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 24)); /* kk - at offset 10 */
1275 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 26)); /* ll - at offset 11 */
1276 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 28)); /* mm - at offset 12 */
1277 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 30)); /* nn - at offset 13 */
1278 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 32)); /* oo - at offset 14 */
1279 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 34)); /* pp - at offset 15 */
1285 * ACPI 2.0b: 16.2.3.6.4.3 Unicode Macro (Convert Ascii String To Unicode)
1287 Aml
*aml_unicode(const char *str
)
1290 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
1293 build_append_byte(var
->buf
, str
[i
]);
1294 build_append_byte(var
->buf
, 0);
1296 } while (i
<= strlen(str
));
1301 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDerefOf */
1302 Aml
*aml_derefof(Aml
*arg
)
1304 Aml
*var
= aml_opcode(0x83 /* DerefOfOp */);
1305 aml_append(var
, arg
);
1309 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSizeOf */
1310 Aml
*aml_sizeof(Aml
*arg
)
1312 Aml
*var
= aml_opcode(0x87 /* SizeOfOp */);
1313 aml_append(var
, arg
);
1317 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMutex */
1318 Aml
*aml_mutex(const char *name
, uint8_t sync_level
)
1320 Aml
*var
= aml_alloc();
1321 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1322 build_append_byte(var
->buf
, 0x01); /* MutexOp */
1323 build_append_namestring(var
->buf
, "%s", name
);
1324 assert(!(sync_level
& 0xF0));
1325 build_append_byte(var
->buf
, sync_level
);
1329 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAcquire */
1330 Aml
*aml_acquire(Aml
*mutex
, uint16_t timeout
)
1332 Aml
*var
= aml_alloc();
1333 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1334 build_append_byte(var
->buf
, 0x23); /* AcquireOp */
1335 aml_append(var
, mutex
);
1336 build_append_int_noprefix(var
->buf
, timeout
, sizeof(timeout
));
1340 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefRelease */
1341 Aml
*aml_release(Aml
*mutex
)
1343 Aml
*var
= aml_alloc();
1344 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1345 build_append_byte(var
->buf
, 0x27); /* ReleaseOp */
1346 aml_append(var
, mutex
);
1351 build_header(GArray
*linker
, GArray
*table_data
,
1352 AcpiTableHeader
*h
, const char *sig
, int len
, uint8_t rev
,
1353 const char *oem_table_id
)
1355 memcpy(&h
->signature
, sig
, 4);
1356 h
->length
= cpu_to_le32(len
);
1358 memcpy(h
->oem_id
, ACPI_BUILD_APPNAME6
, 6);
1361 strncpy((char *)h
->oem_table_id
, oem_table_id
, sizeof(h
->oem_table_id
));
1363 memcpy(h
->oem_table_id
, ACPI_BUILD_APPNAME4
, 4);
1364 memcpy(h
->oem_table_id
+ 4, sig
, 4);
1367 h
->oem_revision
= cpu_to_le32(1);
1368 memcpy(h
->asl_compiler_id
, ACPI_BUILD_APPNAME4
, 4);
1369 h
->asl_compiler_revision
= cpu_to_le32(1);
1371 /* Checksum to be filled in by Guest linker */
1372 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_TABLE_FILE
,
1373 table_data
->data
, h
, len
, &h
->checksum
);
1376 void *acpi_data_push(GArray
*table_data
, unsigned size
)
1378 unsigned off
= table_data
->len
;
1379 g_array_set_size(table_data
, off
+ size
);
1380 return table_data
->data
+ off
;
1383 unsigned acpi_data_len(GArray
*table
)
1385 assert(g_array_get_element_size(table
) == 1);
1389 void acpi_add_table(GArray
*table_offsets
, GArray
*table_data
)
1391 uint32_t offset
= cpu_to_le32(table_data
->len
);
1392 g_array_append_val(table_offsets
, offset
);
1395 void acpi_build_tables_init(AcpiBuildTables
*tables
)
1397 tables
->rsdp
= g_array_new(false, true /* clear */, 1);
1398 tables
->table_data
= g_array_new(false, true /* clear */, 1);
1399 tables
->tcpalog
= g_array_new(false, true /* clear */, 1);
1400 tables
->linker
= bios_linker_loader_init();
1403 void acpi_build_tables_cleanup(AcpiBuildTables
*tables
, bool mfre
)
1405 void *linker_data
= bios_linker_loader_cleanup(tables
->linker
);
1406 g_free(linker_data
);
1407 g_array_free(tables
->rsdp
, true);
1408 g_array_free(tables
->table_data
, true);
1409 g_array_free(tables
->tcpalog
, mfre
);
1412 /* Build rsdt table */
1414 build_rsdt(GArray
*table_data
, GArray
*linker
, GArray
*table_offsets
)
1416 AcpiRsdtDescriptorRev1
*rsdt
;
1419 const int table_data_len
= (sizeof(uint32_t) * table_offsets
->len
);
1421 rsdt_len
= sizeof(*rsdt
) + table_data_len
;
1422 rsdt
= acpi_data_push(table_data
, rsdt_len
);
1423 memcpy(rsdt
->table_offset_entry
, table_offsets
->data
, table_data_len
);
1424 for (i
= 0; i
< table_offsets
->len
; ++i
) {
1425 /* rsdt->table_offset_entry to be filled by Guest linker */
1426 bios_linker_loader_add_pointer(linker
,
1427 ACPI_BUILD_TABLE_FILE
,
1428 ACPI_BUILD_TABLE_FILE
,
1429 table_data
, &rsdt
->table_offset_entry
[i
],
1432 build_header(linker
, table_data
,
1433 (void *)rsdt
, "RSDT", rsdt_len
, 1, NULL
);