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 "qemu/osdep.h"
23 #include <glib/gprintf.h>
24 #include "hw/acpi/aml-build.h"
25 #include "qemu/bswap.h"
26 #include "qemu/bitops.h"
27 #include "sysemu/numa.h"
28 #include "hw/boards.h"
30 static GArray
*build_alloc_array(void)
32 return g_array_new(false, true /* clear */, 1);
35 static void build_free_array(GArray
*array
)
37 g_array_free(array
, true);
40 static void build_prepend_byte(GArray
*array
, uint8_t val
)
42 g_array_prepend_val(array
, val
);
45 static void build_append_byte(GArray
*array
, uint8_t val
)
47 g_array_append_val(array
, val
);
50 static void build_append_array(GArray
*array
, GArray
*val
)
52 g_array_append_vals(array
, val
->data
, val
->len
);
55 #define ACPI_NAMESEG_LEN 4
58 build_append_nameseg(GArray
*array
, const char *seg
)
63 assert(len
<= ACPI_NAMESEG_LEN
);
65 g_array_append_vals(array
, seg
, len
);
66 /* Pad up to ACPI_NAMESEG_LEN characters if necessary. */
67 g_array_append_vals(array
, "____", ACPI_NAMESEG_LEN
- len
);
70 static void GCC_FMT_ATTR(2, 0)
71 build_append_namestringv(GArray
*array
, const char *format
, va_list ap
)
78 s
= g_strdup_vprintf(format
, ap
);
79 segs
= g_strsplit(s
, ".", 0);
89 * ACPI 5.0 spec: 20.2.2 Name Objects Encoding:
90 * "SegCount can be from 1 to 255"
92 assert(seg_count
> 0 && seg_count
<= 255);
94 /* handle RootPath || PrefixPath */
96 while (*s
== '\\' || *s
== '^') {
97 build_append_byte(array
, *s
);
104 build_append_byte(array
, 0x00); /* NullName */
106 build_append_nameseg(array
, s
);
111 build_append_byte(array
, 0x2E); /* DualNamePrefix */
112 build_append_nameseg(array
, s
);
113 build_append_nameseg(array
, segs
[1]);
116 build_append_byte(array
, 0x2F); /* MultiNamePrefix */
117 build_append_byte(array
, seg_count
);
119 /* handle the 1st segment manually due to prefix/root path */
120 build_append_nameseg(array
, s
);
122 /* add the rest of segments */
123 segs_iter
= segs
+ 1;
125 build_append_nameseg(array
, *segs_iter
);
134 static void build_append_namestring(GArray
*array
, const char *format
, ...)
138 va_start(ap
, format
);
139 build_append_namestringv(array
, format
, ap
);
143 /* 5.4 Definition Block Encoding */
145 PACKAGE_LENGTH_1BYTE_SHIFT
= 6, /* Up to 63 - use extra 2 bits. */
146 PACKAGE_LENGTH_2BYTE_SHIFT
= 4,
147 PACKAGE_LENGTH_3BYTE_SHIFT
= 12,
148 PACKAGE_LENGTH_4BYTE_SHIFT
= 20,
152 build_prepend_package_length(GArray
*package
, unsigned length
, bool incl_self
)
155 unsigned length_bytes
;
157 if (length
+ 1 < (1 << PACKAGE_LENGTH_1BYTE_SHIFT
)) {
159 } else if (length
+ 2 < (1 << PACKAGE_LENGTH_3BYTE_SHIFT
)) {
161 } else if (length
+ 3 < (1 << PACKAGE_LENGTH_4BYTE_SHIFT
)) {
168 * NamedField uses PkgLength encoding but it doesn't include length
169 * of PkgLength itself.
173 * PkgLength is the length of the inclusive length of the data
174 * and PkgLength's length itself when used for terms with
177 length
+= length_bytes
;
180 switch (length_bytes
) {
183 build_prepend_byte(package
, byte
);
186 byte
= length
>> PACKAGE_LENGTH_4BYTE_SHIFT
;
187 build_prepend_byte(package
, byte
);
188 length
&= (1 << PACKAGE_LENGTH_4BYTE_SHIFT
) - 1;
191 byte
= length
>> PACKAGE_LENGTH_3BYTE_SHIFT
;
192 build_prepend_byte(package
, byte
);
193 length
&= (1 << PACKAGE_LENGTH_3BYTE_SHIFT
) - 1;
196 byte
= length
>> PACKAGE_LENGTH_2BYTE_SHIFT
;
197 build_prepend_byte(package
, byte
);
198 length
&= (1 << PACKAGE_LENGTH_2BYTE_SHIFT
) - 1;
202 * Most significant two bits of byte zero indicate how many following bytes
203 * are in PkgLength encoding.
205 byte
= ((length_bytes
- 1) << PACKAGE_LENGTH_1BYTE_SHIFT
) | length
;
206 build_prepend_byte(package
, byte
);
210 build_append_pkg_length(GArray
*array
, unsigned length
, bool incl_self
)
212 GArray
*tmp
= build_alloc_array();
214 build_prepend_package_length(tmp
, length
, incl_self
);
215 build_append_array(array
, tmp
);
216 build_free_array(tmp
);
219 static void build_package(GArray
*package
, uint8_t op
)
221 build_prepend_package_length(package
, package
->len
, true);
222 build_prepend_byte(package
, op
);
225 static void build_extop_package(GArray
*package
, uint8_t op
)
227 build_package(package
, op
);
228 build_prepend_byte(package
, 0x5B); /* ExtOpPrefix */
231 void build_append_int_noprefix(GArray
*table
, uint64_t value
, int size
)
235 for (i
= 0; i
< size
; ++i
) {
236 build_append_byte(table
, value
& 0xFF);
241 static void build_append_int(GArray
*table
, uint64_t value
)
244 build_append_byte(table
, 0x00); /* ZeroOp */
245 } else if (value
== 0x01) {
246 build_append_byte(table
, 0x01); /* OneOp */
247 } else if (value
<= 0xFF) {
248 build_append_byte(table
, 0x0A); /* BytePrefix */
249 build_append_int_noprefix(table
, value
, 1);
250 } else if (value
<= 0xFFFF) {
251 build_append_byte(table
, 0x0B); /* WordPrefix */
252 build_append_int_noprefix(table
, value
, 2);
253 } else if (value
<= 0xFFFFFFFF) {
254 build_append_byte(table
, 0x0C); /* DWordPrefix */
255 build_append_int_noprefix(table
, value
, 4);
257 build_append_byte(table
, 0x0E); /* QWordPrefix */
258 build_append_int_noprefix(table
, value
, 8);
262 /* Generic Address Structure (GAS)
263 * ACPI 2.0/3.0: 5.2.3.1 Generic Address Structure
265 * @access_width must be 0, see ACPI 2.0:Table 5-1
267 void build_append_gas(GArray
*table
, AmlAddressSpace as
,
268 uint8_t bit_width
, uint8_t bit_offset
,
269 uint8_t access_width
, uint64_t address
)
271 build_append_int_noprefix(table
, as
, 1);
272 build_append_int_noprefix(table
, bit_width
, 1);
273 build_append_int_noprefix(table
, bit_offset
, 1);
274 build_append_int_noprefix(table
, access_width
, 1);
275 build_append_int_noprefix(table
, address
, 8);
279 * Build NAME(XXXX, 0x00000000) where 0x00000000 is encoded as a dword,
280 * and return the offset to 0x00000000 for runtime patching.
282 * Warning: runtime patching is best avoided. Only use this as
283 * a replacement for DataTableRegion (for guests that don't
287 build_append_named_dword(GArray
*array
, const char *name_format
, ...)
292 build_append_byte(array
, 0x08); /* NameOp */
293 va_start(ap
, name_format
);
294 build_append_namestringv(array
, name_format
, ap
);
297 build_append_byte(array
, 0x0C); /* DWordPrefix */
300 build_append_int_noprefix(array
, 0x00000000, 4);
301 assert(array
->len
== offset
+ 4);
306 static GPtrArray
*alloc_list
;
308 static Aml
*aml_alloc(void)
310 Aml
*var
= g_new0(typeof(*var
), 1);
312 g_ptr_array_add(alloc_list
, var
);
313 var
->block_flags
= AML_NO_OPCODE
;
314 var
->buf
= build_alloc_array();
318 static Aml
*aml_opcode(uint8_t op
)
320 Aml
*var
= aml_alloc();
323 var
->block_flags
= AML_OPCODE
;
327 static Aml
*aml_bundle(uint8_t op
, AmlBlockFlags flags
)
329 Aml
*var
= aml_alloc();
332 var
->block_flags
= flags
;
336 static void aml_free(gpointer data
, gpointer user_data
)
339 build_free_array(var
->buf
);
343 Aml
*init_aml_allocator(void)
346 alloc_list
= g_ptr_array_new();
350 void free_aml_allocator(void)
352 g_ptr_array_foreach(alloc_list
, aml_free
, NULL
);
353 g_ptr_array_free(alloc_list
, true);
357 /* pack data with DefBuffer encoding */
358 static void build_buffer(GArray
*array
, uint8_t op
)
360 GArray
*data
= build_alloc_array();
362 build_append_int(data
, array
->len
);
363 g_array_prepend_vals(array
, data
->data
, data
->len
);
364 build_free_array(data
);
365 build_package(array
, op
);
368 void aml_append(Aml
*parent_ctx
, Aml
*child
)
370 GArray
*buf
= build_alloc_array();
371 build_append_array(buf
, child
->buf
);
373 switch (child
->block_flags
) {
375 build_append_byte(parent_ctx
->buf
, child
->op
);
377 case AML_EXT_PACKAGE
:
378 build_extop_package(buf
, child
->op
);
381 build_package(buf
, child
->op
);
383 case AML_RES_TEMPLATE
:
384 build_append_byte(buf
, 0x79); /* EndTag */
386 * checksum operations are treated as succeeded if checksum
387 * field is zero. [ACPI Spec 1.0b, 6.4.2.8 End Tag]
389 build_append_byte(buf
, 0);
390 /* fall through, to pack resources in buffer */
392 build_buffer(buf
, child
->op
);
400 build_append_array(parent_ctx
->buf
, buf
);
401 build_free_array(buf
);
404 /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefScope */
405 Aml
*aml_scope(const char *name_format
, ...)
408 Aml
*var
= aml_bundle(0x10 /* ScopeOp */, AML_PACKAGE
);
409 va_start(ap
, name_format
);
410 build_append_namestringv(var
->buf
, name_format
, ap
);
415 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefReturn */
416 Aml
*aml_return(Aml
*val
)
418 Aml
*var
= aml_opcode(0xA4 /* ReturnOp */);
419 aml_append(var
, val
);
423 /* ACPI 1.0b: 16.2.6.3 Debug Objects Encoding: DebugObj */
426 Aml
*var
= aml_alloc();
427 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
428 build_append_byte(var
->buf
, 0x31); /* DebugOp */
433 * ACPI 1.0b: 16.2.3 Data Objects Encoding:
434 * encodes: ByteConst, WordConst, DWordConst, QWordConst, ZeroOp, OneOp
436 Aml
*aml_int(const uint64_t val
)
438 Aml
*var
= aml_alloc();
439 build_append_int(var
->buf
, val
);
444 * helper to construct NameString, which returns Aml object
445 * for using with aml_append or other aml_* terms
447 Aml
*aml_name(const char *name_format
, ...)
450 Aml
*var
= aml_alloc();
451 va_start(ap
, name_format
);
452 build_append_namestringv(var
->buf
, name_format
, ap
);
457 /* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefName */
458 Aml
*aml_name_decl(const char *name
, Aml
*val
)
460 Aml
*var
= aml_opcode(0x08 /* NameOp */);
461 build_append_namestring(var
->buf
, "%s", name
);
462 aml_append(var
, val
);
466 /* ACPI 1.0b: 16.2.6.1 Arg Objects Encoding */
467 Aml
*aml_arg(int pos
)
469 uint8_t op
= 0x68 /* ARG0 op */ + pos
;
472 return aml_opcode(op
);
475 /* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToInteger */
476 Aml
*aml_to_integer(Aml
*arg
)
478 Aml
*var
= aml_opcode(0x99 /* ToIntegerOp */);
479 aml_append(var
, arg
);
480 build_append_byte(var
->buf
, 0x00 /* NullNameOp */);
484 /* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToHexString */
485 Aml
*aml_to_hexstring(Aml
*src
, Aml
*dst
)
487 Aml
*var
= aml_opcode(0x98 /* ToHexStringOp */);
488 aml_append(var
, src
);
490 aml_append(var
, dst
);
492 build_append_byte(var
->buf
, 0x00 /* NullNameOp */);
497 /* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToBuffer */
498 Aml
*aml_to_buffer(Aml
*src
, Aml
*dst
)
500 Aml
*var
= aml_opcode(0x96 /* ToBufferOp */);
501 aml_append(var
, src
);
503 aml_append(var
, dst
);
505 build_append_byte(var
->buf
, 0x00 /* NullNameOp */);
510 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefStore */
511 Aml
*aml_store(Aml
*val
, Aml
*target
)
513 Aml
*var
= aml_opcode(0x70 /* StoreOp */);
514 aml_append(var
, val
);
515 aml_append(var
, target
);
520 * build_opcode_2arg_dst:
524 * @dst: optional target to store to, set to NULL if it's not required
526 * An internal helper to compose AML terms that have
527 * "Op Operand Operand Target"
530 * Returns: The newly allocated and composed according to patter Aml object.
533 build_opcode_2arg_dst(uint8_t op
, Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
535 Aml
*var
= aml_opcode(op
);
536 aml_append(var
, arg1
);
537 aml_append(var
, arg2
);
539 aml_append(var
, dst
);
541 build_append_byte(var
->buf
, 0x00 /* NullNameOp */);
546 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAnd */
547 Aml
*aml_and(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
549 return build_opcode_2arg_dst(0x7B /* AndOp */, arg1
, arg2
, dst
);
552 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefOr */
553 Aml
*aml_or(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
555 return build_opcode_2arg_dst(0x7D /* OrOp */, arg1
, arg2
, dst
);
558 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLOr */
559 Aml
*aml_lor(Aml
*arg1
, Aml
*arg2
)
561 Aml
*var
= aml_opcode(0x91 /* LOrOp */);
562 aml_append(var
, arg1
);
563 aml_append(var
, arg2
);
567 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftLeft */
568 Aml
*aml_shiftleft(Aml
*arg1
, Aml
*count
)
570 return build_opcode_2arg_dst(0x79 /* ShiftLeftOp */, arg1
, count
, NULL
);
573 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */
574 Aml
*aml_shiftright(Aml
*arg1
, Aml
*count
, Aml
*dst
)
576 return build_opcode_2arg_dst(0x7A /* ShiftRightOp */, arg1
, count
, dst
);
579 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */
580 Aml
*aml_lless(Aml
*arg1
, Aml
*arg2
)
582 Aml
*var
= aml_opcode(0x95 /* LLessOp */);
583 aml_append(var
, arg1
);
584 aml_append(var
, arg2
);
588 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAdd */
589 Aml
*aml_add(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
591 return build_opcode_2arg_dst(0x72 /* AddOp */, arg1
, arg2
, dst
);
594 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSubtract */
595 Aml
*aml_subtract(Aml
*arg1
, Aml
*arg2
, Aml
*dst
)
597 return build_opcode_2arg_dst(0x74 /* SubtractOp */, arg1
, arg2
, dst
);
600 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIncrement */
601 Aml
*aml_increment(Aml
*arg
)
603 Aml
*var
= aml_opcode(0x75 /* IncrementOp */);
604 aml_append(var
, arg
);
608 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDecrement */
609 Aml
*aml_decrement(Aml
*arg
)
611 Aml
*var
= aml_opcode(0x76 /* DecrementOp */);
612 aml_append(var
, arg
);
616 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIndex */
617 Aml
*aml_index(Aml
*arg1
, Aml
*idx
)
619 return build_opcode_2arg_dst(0x88 /* IndexOp */, arg1
, idx
, NULL
);
622 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefNotify */
623 Aml
*aml_notify(Aml
*arg1
, Aml
*arg2
)
625 Aml
*var
= aml_opcode(0x86 /* NotifyOp */);
626 aml_append(var
, arg1
);
627 aml_append(var
, arg2
);
631 /* helper to call method without argument */
632 Aml
*aml_call0(const char *method
)
634 Aml
*var
= aml_alloc();
635 build_append_namestring(var
->buf
, "%s", method
);
639 /* helper to call method with 1 argument */
640 Aml
*aml_call1(const char *method
, Aml
*arg1
)
642 Aml
*var
= aml_alloc();
643 build_append_namestring(var
->buf
, "%s", method
);
644 aml_append(var
, arg1
);
648 /* helper to call method with 2 arguments */
649 Aml
*aml_call2(const char *method
, Aml
*arg1
, Aml
*arg2
)
651 Aml
*var
= aml_alloc();
652 build_append_namestring(var
->buf
, "%s", method
);
653 aml_append(var
, arg1
);
654 aml_append(var
, arg2
);
658 /* helper to call method with 3 arguments */
659 Aml
*aml_call3(const char *method
, Aml
*arg1
, Aml
*arg2
, Aml
*arg3
)
661 Aml
*var
= aml_alloc();
662 build_append_namestring(var
->buf
, "%s", method
);
663 aml_append(var
, arg1
);
664 aml_append(var
, arg2
);
665 aml_append(var
, arg3
);
669 /* helper to call method with 4 arguments */
670 Aml
*aml_call4(const char *method
, Aml
*arg1
, Aml
*arg2
, Aml
*arg3
, Aml
*arg4
)
672 Aml
*var
= aml_alloc();
673 build_append_namestring(var
->buf
, "%s", method
);
674 aml_append(var
, arg1
);
675 aml_append(var
, arg2
);
676 aml_append(var
, arg3
);
677 aml_append(var
, arg4
);
681 /* helper to call method with 5 arguments */
682 Aml
*aml_call5(const char *method
, Aml
*arg1
, Aml
*arg2
, Aml
*arg3
, Aml
*arg4
,
685 Aml
*var
= aml_alloc();
686 build_append_namestring(var
->buf
, "%s", method
);
687 aml_append(var
, arg1
);
688 aml_append(var
, arg2
);
689 aml_append(var
, arg3
);
690 aml_append(var
, arg4
);
691 aml_append(var
, arg5
);
696 * ACPI 5.0: 6.4.3.8.1 GPIO Connection Descriptor
697 * Type 1, Large Item Name 0xC
700 static Aml
*aml_gpio_connection(AmlGpioConnectionType type
,
701 AmlConsumerAndProducer con_and_pro
,
702 uint8_t flags
, AmlPinConfig pin_config
,
703 uint16_t output_drive
,
704 uint16_t debounce_timeout
,
705 const uint32_t pin_list
[], uint32_t pin_count
,
706 const char *resource_source_name
,
707 const uint8_t *vendor_data
,
708 uint16_t vendor_data_len
)
710 Aml
*var
= aml_alloc();
711 const uint16_t min_desc_len
= 0x16;
712 uint16_t resource_source_name_len
, length
;
713 uint16_t pin_table_offset
, resource_source_name_offset
, vendor_data_offset
;
716 assert(resource_source_name
);
717 resource_source_name_len
= strlen(resource_source_name
) + 1;
718 length
= min_desc_len
+ resource_source_name_len
+ vendor_data_len
;
719 pin_table_offset
= min_desc_len
+ 1;
720 resource_source_name_offset
= pin_table_offset
+ pin_count
* 2;
721 vendor_data_offset
= resource_source_name_offset
+ resource_source_name_len
;
723 build_append_byte(var
->buf
, 0x8C); /* GPIO Connection Descriptor */
724 build_append_int_noprefix(var
->buf
, length
, 2); /* Length */
725 build_append_byte(var
->buf
, 1); /* Revision ID */
726 build_append_byte(var
->buf
, type
); /* GPIO Connection Type */
727 /* General Flags (2 bytes) */
728 build_append_int_noprefix(var
->buf
, con_and_pro
, 2);
729 /* Interrupt and IO Flags (2 bytes) */
730 build_append_int_noprefix(var
->buf
, flags
, 2);
731 /* Pin Configuration 0 = Default 1 = Pull-up 2 = Pull-down 3 = No Pull */
732 build_append_byte(var
->buf
, pin_config
);
733 /* Output Drive Strength (2 bytes) */
734 build_append_int_noprefix(var
->buf
, output_drive
, 2);
735 /* Debounce Timeout (2 bytes) */
736 build_append_int_noprefix(var
->buf
, debounce_timeout
, 2);
737 /* Pin Table Offset (2 bytes) */
738 build_append_int_noprefix(var
->buf
, pin_table_offset
, 2);
739 build_append_byte(var
->buf
, 0); /* Resource Source Index */
740 /* Resource Source Name Offset (2 bytes) */
741 build_append_int_noprefix(var
->buf
, resource_source_name_offset
, 2);
742 /* Vendor Data Offset (2 bytes) */
743 build_append_int_noprefix(var
->buf
, vendor_data_offset
, 2);
744 /* Vendor Data Length (2 bytes) */
745 build_append_int_noprefix(var
->buf
, vendor_data_len
, 2);
746 /* Pin Number (2n bytes)*/
747 for (i
= 0; i
< pin_count
; i
++) {
748 build_append_int_noprefix(var
->buf
, pin_list
[i
], 2);
751 /* Resource Source Name */
752 build_append_namestring(var
->buf
, "%s", resource_source_name
);
753 build_append_byte(var
->buf
, '\0');
755 /* Vendor-defined Data */
756 if (vendor_data
!= NULL
) {
757 g_array_append_vals(var
->buf
, vendor_data
, vendor_data_len
);
765 * GpioInt(GPIO Interrupt Connection Resource Descriptor Macro)
767 Aml
*aml_gpio_int(AmlConsumerAndProducer con_and_pro
,
768 AmlLevelAndEdge edge_level
,
769 AmlActiveHighAndLow active_level
, AmlShared shared
,
770 AmlPinConfig pin_config
, uint16_t debounce_timeout
,
771 const uint32_t pin_list
[], uint32_t pin_count
,
772 const char *resource_source_name
,
773 const uint8_t *vendor_data
, uint16_t vendor_data_len
)
775 uint8_t flags
= edge_level
| (active_level
<< 1) | (shared
<< 3);
777 return aml_gpio_connection(AML_INTERRUPT_CONNECTION
, con_and_pro
, flags
,
778 pin_config
, 0, debounce_timeout
, pin_list
,
779 pin_count
, resource_source_name
, vendor_data
,
784 * ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor
785 * (Type 1, Large Item Name 0x6)
787 Aml
*aml_memory32_fixed(uint32_t addr
, uint32_t size
,
788 AmlReadAndWrite read_and_write
)
790 Aml
*var
= aml_alloc();
791 build_append_byte(var
->buf
, 0x86); /* Memory32Fixed Resource Descriptor */
792 build_append_byte(var
->buf
, 9); /* Length, bits[7:0] value = 9 */
793 build_append_byte(var
->buf
, 0); /* Length, bits[15:8] value = 0 */
794 build_append_byte(var
->buf
, read_and_write
); /* Write status, 1 rw 0 ro */
796 /* Range base address */
797 build_append_byte(var
->buf
, extract32(addr
, 0, 8)); /* bits[7:0] */
798 build_append_byte(var
->buf
, extract32(addr
, 8, 8)); /* bits[15:8] */
799 build_append_byte(var
->buf
, extract32(addr
, 16, 8)); /* bits[23:16] */
800 build_append_byte(var
->buf
, extract32(addr
, 24, 8)); /* bits[31:24] */
803 build_append_byte(var
->buf
, extract32(size
, 0, 8)); /* bits[7:0] */
804 build_append_byte(var
->buf
, extract32(size
, 8, 8)); /* bits[15:8] */
805 build_append_byte(var
->buf
, extract32(size
, 16, 8)); /* bits[23:16] */
806 build_append_byte(var
->buf
, extract32(size
, 24, 8)); /* bits[31:24] */
811 * ACPI 5.0: 6.4.3.6 Extended Interrupt Descriptor
812 * Type 1, Large Item Name 0x9
814 Aml
*aml_interrupt(AmlConsumerAndProducer con_and_pro
,
815 AmlLevelAndEdge level_and_edge
,
816 AmlActiveHighAndLow high_and_low
, AmlShared shared
,
817 uint32_t *irq_list
, uint8_t irq_count
)
820 Aml
*var
= aml_alloc();
821 uint8_t irq_flags
= con_and_pro
| (level_and_edge
<< 1)
822 | (high_and_low
<< 2) | (shared
<< 3);
823 const int header_bytes_in_len
= 2;
824 uint16_t len
= header_bytes_in_len
+ irq_count
* sizeof(uint32_t);
826 assert(irq_count
> 0);
828 build_append_byte(var
->buf
, 0x89); /* Extended irq descriptor */
829 build_append_byte(var
->buf
, len
& 0xFF); /* Length, bits[7:0] */
830 build_append_byte(var
->buf
, len
>> 8); /* Length, bits[15:8] */
831 build_append_byte(var
->buf
, irq_flags
); /* Interrupt Vector Information. */
832 build_append_byte(var
->buf
, irq_count
); /* Interrupt table length */
834 /* Interrupt Number List */
835 for (i
= 0; i
< irq_count
; i
++) {
836 build_append_int_noprefix(var
->buf
, irq_list
[i
], 4);
841 /* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */
842 Aml
*aml_io(AmlIODecode dec
, uint16_t min_base
, uint16_t max_base
,
843 uint8_t aln
, uint8_t len
)
845 Aml
*var
= aml_alloc();
846 build_append_byte(var
->buf
, 0x47); /* IO port descriptor */
847 build_append_byte(var
->buf
, dec
);
848 build_append_byte(var
->buf
, min_base
& 0xff);
849 build_append_byte(var
->buf
, (min_base
>> 8) & 0xff);
850 build_append_byte(var
->buf
, max_base
& 0xff);
851 build_append_byte(var
->buf
, (max_base
>> 8) & 0xff);
852 build_append_byte(var
->buf
, aln
);
853 build_append_byte(var
->buf
, len
);
858 * ACPI 1.0b: 6.4.2.1.1 ASL Macro for IRQ Descriptor
860 * More verbose description at:
861 * ACPI 5.0: 19.5.64 IRQNoFlags (Interrupt Resource Descriptor Macro)
862 * 6.4.2.1 IRQ Descriptor
864 Aml
*aml_irq_no_flags(uint8_t irq
)
867 Aml
*var
= aml_alloc();
870 build_append_byte(var
->buf
, 0x22); /* IRQ descriptor 2 byte form */
872 irq_mask
= 1U << irq
;
873 build_append_byte(var
->buf
, irq_mask
& 0xFF); /* IRQ mask bits[7:0] */
874 build_append_byte(var
->buf
, irq_mask
>> 8); /* IRQ mask bits[15:8] */
878 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLNot */
879 Aml
*aml_lnot(Aml
*arg
)
881 Aml
*var
= aml_opcode(0x92 /* LNotOp */);
882 aml_append(var
, arg
);
886 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLEqual */
887 Aml
*aml_equal(Aml
*arg1
, Aml
*arg2
)
889 Aml
*var
= aml_opcode(0x93 /* LequalOp */);
890 aml_append(var
, arg1
);
891 aml_append(var
, arg2
);
895 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreater */
896 Aml
*aml_lgreater(Aml
*arg1
, Aml
*arg2
)
898 Aml
*var
= aml_opcode(0x94 /* LGreaterOp */);
899 aml_append(var
, arg1
);
900 aml_append(var
, arg2
);
904 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreaterEqual */
905 Aml
*aml_lgreater_equal(Aml
*arg1
, Aml
*arg2
)
907 /* LGreaterEqualOp := LNotOp LLessOp */
908 Aml
*var
= aml_opcode(0x92 /* LNotOp */);
909 build_append_byte(var
->buf
, 0x95 /* LLessOp */);
910 aml_append(var
, arg1
);
911 aml_append(var
, arg2
);
915 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
916 Aml
*aml_if(Aml
*predicate
)
918 Aml
*var
= aml_bundle(0xA0 /* IfOp */, AML_PACKAGE
);
919 aml_append(var
, predicate
);
923 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefElse */
926 Aml
*var
= aml_bundle(0xA1 /* ElseOp */, AML_PACKAGE
);
930 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefWhile */
931 Aml
*aml_while(Aml
*predicate
)
933 Aml
*var
= aml_bundle(0xA2 /* WhileOp */, AML_PACKAGE
);
934 aml_append(var
, predicate
);
938 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */
939 Aml
*aml_method(const char *name
, int arg_count
, AmlSerializeFlag sflag
)
941 Aml
*var
= aml_bundle(0x14 /* MethodOp */, AML_PACKAGE
);
946 * bit 0-2: ArgCount (0-7)
947 * bit 3: SerializeFlag
950 * bit 4-7: reserved (must be 0)
952 assert(arg_count
< 8);
953 methodflags
= arg_count
| (sflag
<< 3);
955 build_append_namestring(var
->buf
, "%s", name
);
956 build_append_byte(var
->buf
, methodflags
); /* MethodFlags: ArgCount */
960 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefDevice */
961 Aml
*aml_device(const char *name_format
, ...)
964 Aml
*var
= aml_bundle(0x82 /* DeviceOp */, AML_EXT_PACKAGE
);
965 va_start(ap
, name_format
);
966 build_append_namestringv(var
->buf
, name_format
, ap
);
971 /* ACPI 1.0b: 6.4.1 ASL Macros for Resource Descriptors */
972 Aml
*aml_resource_template(void)
974 /* ResourceTemplate is a buffer of Resources with EndTag at the end */
975 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_RES_TEMPLATE
);
979 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefBuffer
980 * Pass byte_list as NULL to request uninitialized buffer to reserve space.
982 Aml
*aml_buffer(int buffer_size
, uint8_t *byte_list
)
985 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
987 for (i
= 0; i
< buffer_size
; i
++) {
988 if (byte_list
== NULL
) {
989 build_append_byte(var
->buf
, 0x0);
991 build_append_byte(var
->buf
, byte_list
[i
]);
998 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefPackage */
999 Aml
*aml_package(uint8_t num_elements
)
1001 Aml
*var
= aml_bundle(0x12 /* PackageOp */, AML_PACKAGE
);
1002 build_append_byte(var
->buf
, num_elements
);
1006 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefOpRegion */
1007 Aml
*aml_operation_region(const char *name
, AmlRegionSpace rs
,
1008 Aml
*offset
, uint32_t len
)
1010 Aml
*var
= aml_alloc();
1011 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1012 build_append_byte(var
->buf
, 0x80); /* OpRegionOp */
1013 build_append_namestring(var
->buf
, "%s", name
);
1014 build_append_byte(var
->buf
, rs
);
1015 aml_append(var
, offset
);
1016 build_append_int(var
->buf
, len
);
1020 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: NamedField */
1021 Aml
*aml_named_field(const char *name
, unsigned length
)
1023 Aml
*var
= aml_alloc();
1024 build_append_nameseg(var
->buf
, name
);
1025 build_append_pkg_length(var
->buf
, length
, false);
1029 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: ReservedField */
1030 Aml
*aml_reserved_field(unsigned length
)
1032 Aml
*var
= aml_alloc();
1033 /* ReservedField := 0x00 PkgLength */
1034 build_append_byte(var
->buf
, 0x00);
1035 build_append_pkg_length(var
->buf
, length
, false);
1039 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefField */
1040 Aml
*aml_field(const char *name
, AmlAccessType type
, AmlLockRule lock
,
1043 Aml
*var
= aml_bundle(0x81 /* FieldOp */, AML_EXT_PACKAGE
);
1044 uint8_t flags
= rule
<< 5 | type
;
1046 flags
|= lock
<< 4; /* LockRule at 4 bit offset */
1048 build_append_namestring(var
->buf
, "%s", name
);
1049 build_append_byte(var
->buf
, flags
);
1054 Aml
*create_field_common(int opcode
, Aml
*srcbuf
, Aml
*index
, const char *name
)
1056 Aml
*var
= aml_opcode(opcode
);
1057 aml_append(var
, srcbuf
);
1058 aml_append(var
, index
);
1059 build_append_namestring(var
->buf
, "%s", name
);
1063 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateField */
1064 Aml
*aml_create_field(Aml
*srcbuf
, Aml
*bit_index
, Aml
*num_bits
,
1067 Aml
*var
= aml_alloc();
1068 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1069 build_append_byte(var
->buf
, 0x13); /* CreateFieldOp */
1070 aml_append(var
, srcbuf
);
1071 aml_append(var
, bit_index
);
1072 aml_append(var
, num_bits
);
1073 build_append_namestring(var
->buf
, "%s", name
);
1077 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateDWordField */
1078 Aml
*aml_create_dword_field(Aml
*srcbuf
, Aml
*index
, const char *name
)
1080 return create_field_common(0x8A /* CreateDWordFieldOp */,
1081 srcbuf
, index
, name
);
1084 /* ACPI 2.0a: 17.2.4.2 Named Objects Encoding: DefCreateQWordField */
1085 Aml
*aml_create_qword_field(Aml
*srcbuf
, Aml
*index
, const char *name
)
1087 return create_field_common(0x8F /* CreateQWordFieldOp */,
1088 srcbuf
, index
, name
);
1091 /* ACPI 1.0b: 16.2.3 Data Objects Encoding: String */
1092 Aml
*aml_string(const char *name_format
, ...)
1094 Aml
*var
= aml_opcode(0x0D /* StringPrefix */);
1099 va_start(ap
, name_format
);
1100 len
= g_vasprintf(&s
, name_format
, ap
);
1103 g_array_append_vals(var
->buf
, s
, len
+ 1);
1109 /* ACPI 1.0b: 16.2.6.2 Local Objects Encoding */
1110 Aml
*aml_local(int num
)
1112 uint8_t op
= 0x60 /* Local0Op */ + num
;
1115 return aml_opcode(op
);
1118 /* ACPI 2.0a: 17.2.2 Data Objects Encoding: DefVarPackage */
1119 Aml
*aml_varpackage(uint32_t num_elements
)
1121 Aml
*var
= aml_bundle(0x13 /* VarPackageOp */, AML_PACKAGE
);
1122 build_append_int(var
->buf
, num_elements
);
1126 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefProcessor */
1127 Aml
*aml_processor(uint8_t proc_id
, uint32_t pblk_addr
, uint8_t pblk_len
,
1128 const char *name_format
, ...)
1131 Aml
*var
= aml_bundle(0x83 /* ProcessorOp */, AML_EXT_PACKAGE
);
1132 va_start(ap
, name_format
);
1133 build_append_namestringv(var
->buf
, name_format
, ap
);
1135 build_append_byte(var
->buf
, proc_id
); /* ProcID */
1136 build_append_int_noprefix(var
->buf
, pblk_addr
, sizeof(pblk_addr
));
1137 build_append_byte(var
->buf
, pblk_len
); /* PblkLen */
1141 static uint8_t Hex2Digit(char c
)
1144 return c
- 'A' + 10;
1150 /* ACPI 1.0b: 15.2.3.6.4.1 EISAID Macro - Convert EISA ID String To Integer */
1151 Aml
*aml_eisaid(const char *str
)
1153 Aml
*var
= aml_alloc();
1156 g_assert(strlen(str
) == 7);
1157 id
= (str
[0] - 0x40) << 26 |
1158 (str
[1] - 0x40) << 21 |
1159 (str
[2] - 0x40) << 16 |
1160 Hex2Digit(str
[3]) << 12 |
1161 Hex2Digit(str
[4]) << 8 |
1162 Hex2Digit(str
[5]) << 4 |
1165 build_append_byte(var
->buf
, 0x0C); /* DWordPrefix */
1166 build_append_int_noprefix(var
->buf
, bswap32(id
), sizeof(id
));
1170 /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor: bytes 3-5 */
1171 static Aml
*aml_as_desc_header(AmlResourceType type
, AmlMinFixed min_fixed
,
1172 AmlMaxFixed max_fixed
, AmlDecode dec
,
1175 uint8_t flags
= max_fixed
| min_fixed
| dec
;
1176 Aml
*var
= aml_alloc();
1178 build_append_byte(var
->buf
, type
);
1179 build_append_byte(var
->buf
, flags
);
1180 build_append_byte(var
->buf
, type_flags
); /* Type Specific Flags */
1184 /* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor */
1185 static Aml
*aml_word_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1186 AmlMaxFixed max_fixed
, AmlDecode dec
,
1187 uint16_t addr_gran
, uint16_t addr_min
,
1188 uint16_t addr_max
, uint16_t addr_trans
,
1189 uint16_t len
, uint8_t type_flags
)
1191 Aml
*var
= aml_alloc();
1193 build_append_byte(var
->buf
, 0x88); /* Word Address Space Descriptor */
1194 /* minimum length since we do not encode optional fields */
1195 build_append_byte(var
->buf
, 0x0D);
1196 build_append_byte(var
->buf
, 0x0);
1199 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1200 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1201 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1202 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1203 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1204 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1208 /* ACPI 1.0b: 6.4.3.5.3 DWord Address Space Descriptor */
1209 static Aml
*aml_dword_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1210 AmlMaxFixed max_fixed
, AmlDecode dec
,
1211 uint32_t addr_gran
, uint32_t addr_min
,
1212 uint32_t addr_max
, uint32_t addr_trans
,
1213 uint32_t len
, uint8_t type_flags
)
1215 Aml
*var
= aml_alloc();
1217 build_append_byte(var
->buf
, 0x87); /* DWord Address Space Descriptor */
1218 /* minimum length since we do not encode optional fields */
1219 build_append_byte(var
->buf
, 23);
1220 build_append_byte(var
->buf
, 0x0);
1224 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1225 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1226 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1227 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1228 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1229 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1233 /* ACPI 1.0b: 6.4.3.5.1 QWord Address Space Descriptor */
1234 static Aml
*aml_qword_as_desc(AmlResourceType type
, AmlMinFixed min_fixed
,
1235 AmlMaxFixed max_fixed
, AmlDecode dec
,
1236 uint64_t addr_gran
, uint64_t addr_min
,
1237 uint64_t addr_max
, uint64_t addr_trans
,
1238 uint64_t len
, uint8_t type_flags
)
1240 Aml
*var
= aml_alloc();
1242 build_append_byte(var
->buf
, 0x8A); /* QWord Address Space Descriptor */
1243 /* minimum length since we do not encode optional fields */
1244 build_append_byte(var
->buf
, 0x2B);
1245 build_append_byte(var
->buf
, 0x0);
1248 aml_as_desc_header(type
, min_fixed
, max_fixed
, dec
, type_flags
));
1249 build_append_int_noprefix(var
->buf
, addr_gran
, sizeof(addr_gran
));
1250 build_append_int_noprefix(var
->buf
, addr_min
, sizeof(addr_min
));
1251 build_append_int_noprefix(var
->buf
, addr_max
, sizeof(addr_max
));
1252 build_append_int_noprefix(var
->buf
, addr_trans
, sizeof(addr_trans
));
1253 build_append_int_noprefix(var
->buf
, len
, sizeof(len
));
1258 * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
1260 * More verbose description at:
1261 * ACPI 5.0: 19.5.141 WordBusNumber (Word Bus Number Resource Descriptor Macro)
1263 Aml
*aml_word_bus_number(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1264 AmlDecode dec
, uint16_t addr_gran
,
1265 uint16_t addr_min
, uint16_t addr_max
,
1266 uint16_t addr_trans
, uint16_t len
)
1269 return aml_word_as_desc(AML_BUS_NUMBER_RANGE
, min_fixed
, max_fixed
, dec
,
1270 addr_gran
, addr_min
, addr_max
, addr_trans
, len
, 0);
1274 * ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
1276 * More verbose description at:
1277 * ACPI 5.0: 19.5.142 WordIO (Word IO Resource Descriptor Macro)
1279 Aml
*aml_word_io(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1280 AmlDecode dec
, AmlISARanges isa_ranges
,
1281 uint16_t addr_gran
, uint16_t addr_min
,
1282 uint16_t addr_max
, uint16_t addr_trans
,
1286 return aml_word_as_desc(AML_IO_RANGE
, min_fixed
, max_fixed
, dec
,
1287 addr_gran
, addr_min
, addr_max
, addr_trans
, len
,
1292 * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Descriptor
1294 * More verbose description at:
1295 * ACPI 5.0: 19.5.33 DWordIO (DWord IO Resource Descriptor Macro)
1297 Aml
*aml_dword_io(AmlMinFixed min_fixed
, AmlMaxFixed max_fixed
,
1298 AmlDecode dec
, AmlISARanges isa_ranges
,
1299 uint32_t addr_gran
, uint32_t addr_min
,
1300 uint32_t addr_max
, uint32_t addr_trans
,
1304 return aml_dword_as_desc(AML_IO_RANGE
, min_fixed
, max_fixed
, dec
,
1305 addr_gran
, addr_min
, addr_max
, addr_trans
, len
,
1310 * ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Space Descriptor
1312 * More verbose description at:
1313 * ACPI 5.0: 19.5.34 DWordMemory (DWord Memory Resource Descriptor Macro)
1315 Aml
*aml_dword_memory(AmlDecode dec
, AmlMinFixed min_fixed
,
1316 AmlMaxFixed max_fixed
, AmlCacheable cacheable
,
1317 AmlReadAndWrite read_and_write
,
1318 uint32_t addr_gran
, uint32_t addr_min
,
1319 uint32_t addr_max
, uint32_t addr_trans
,
1322 uint8_t flags
= read_and_write
| (cacheable
<< 1);
1324 return aml_dword_as_desc(AML_MEMORY_RANGE
, min_fixed
, max_fixed
,
1325 dec
, addr_gran
, addr_min
, addr_max
,
1326 addr_trans
, len
, flags
);
1330 * ACPI 1.0b: 6.4.3.5.2 ASL Macros for QWORD Address Space Descriptor
1332 * More verbose description at:
1333 * ACPI 5.0: 19.5.102 QWordMemory (QWord Memory Resource Descriptor Macro)
1335 Aml
*aml_qword_memory(AmlDecode dec
, AmlMinFixed min_fixed
,
1336 AmlMaxFixed max_fixed
, AmlCacheable cacheable
,
1337 AmlReadAndWrite read_and_write
,
1338 uint64_t addr_gran
, uint64_t addr_min
,
1339 uint64_t addr_max
, uint64_t addr_trans
,
1342 uint8_t flags
= read_and_write
| (cacheable
<< 1);
1344 return aml_qword_as_desc(AML_MEMORY_RANGE
, min_fixed
, max_fixed
,
1345 dec
, addr_gran
, addr_min
, addr_max
,
1346 addr_trans
, len
, flags
);
1349 /* ACPI 1.0b: 6.4.2.2 DMA Format/6.4.2.2.1 ASL Macro for DMA Descriptor */
1350 Aml
*aml_dma(AmlDmaType typ
, AmlDmaBusMaster bm
, AmlTransferSize sz
,
1353 Aml
*var
= aml_alloc();
1354 uint8_t flags
= sz
| bm
<< 2 | typ
<< 5;
1356 assert(channel
< 8);
1357 build_append_byte(var
->buf
, 0x2A); /* Byte 0: DMA Descriptor */
1358 build_append_byte(var
->buf
, 1U << channel
); /* Byte 1: _DMA - DmaChannel */
1359 build_append_byte(var
->buf
, flags
); /* Byte 2 */
1363 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefSleep */
1364 Aml
*aml_sleep(uint64_t msec
)
1366 Aml
*var
= aml_alloc();
1367 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1368 build_append_byte(var
->buf
, 0x22); /* SleepOp */
1369 aml_append(var
, aml_int(msec
));
1373 static uint8_t Hex2Byte(const char *src
)
1377 hi
= Hex2Digit(src
[0]);
1381 lo
= Hex2Digit(src
[1]);
1384 return (hi
<< 4) | lo
;
1388 * ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro)
1389 * e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
1390 * call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp");
1392 Aml
*aml_touuid(const char *uuid
)
1394 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
1396 assert(strlen(uuid
) == 36);
1397 assert(uuid
[8] == '-');
1398 assert(uuid
[13] == '-');
1399 assert(uuid
[18] == '-');
1400 assert(uuid
[23] == '-');
1402 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 6)); /* dd - at offset 00 */
1403 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 4)); /* cc - at offset 01 */
1404 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 2)); /* bb - at offset 02 */
1405 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 0)); /* aa - at offset 03 */
1407 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 11)); /* ff - at offset 04 */
1408 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 9)); /* ee - at offset 05 */
1410 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 16)); /* hh - at offset 06 */
1411 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 14)); /* gg - at offset 07 */
1413 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 19)); /* ii - at offset 08 */
1414 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 21)); /* jj - at offset 09 */
1416 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 24)); /* kk - at offset 10 */
1417 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 26)); /* ll - at offset 11 */
1418 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 28)); /* mm - at offset 12 */
1419 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 30)); /* nn - at offset 13 */
1420 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 32)); /* oo - at offset 14 */
1421 build_append_byte(var
->buf
, Hex2Byte(uuid
+ 34)); /* pp - at offset 15 */
1427 * ACPI 2.0b: 16.2.3.6.4.3 Unicode Macro (Convert Ascii String To Unicode)
1429 Aml
*aml_unicode(const char *str
)
1432 Aml
*var
= aml_bundle(0x11 /* BufferOp */, AML_BUFFER
);
1435 build_append_byte(var
->buf
, str
[i
]);
1436 build_append_byte(var
->buf
, 0);
1438 } while (i
<= strlen(str
));
1443 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefRefOf */
1444 Aml
*aml_refof(Aml
*arg
)
1446 Aml
*var
= aml_opcode(0x71 /* RefOfOp */);
1447 aml_append(var
, arg
);
1451 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDerefOf */
1452 Aml
*aml_derefof(Aml
*arg
)
1454 Aml
*var
= aml_opcode(0x83 /* DerefOfOp */);
1455 aml_append(var
, arg
);
1459 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSizeOf */
1460 Aml
*aml_sizeof(Aml
*arg
)
1462 Aml
*var
= aml_opcode(0x87 /* SizeOfOp */);
1463 aml_append(var
, arg
);
1467 /* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMutex */
1468 Aml
*aml_mutex(const char *name
, uint8_t sync_level
)
1470 Aml
*var
= aml_alloc();
1471 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1472 build_append_byte(var
->buf
, 0x01); /* MutexOp */
1473 build_append_namestring(var
->buf
, "%s", name
);
1474 assert(!(sync_level
& 0xF0));
1475 build_append_byte(var
->buf
, sync_level
);
1479 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAcquire */
1480 Aml
*aml_acquire(Aml
*mutex
, uint16_t timeout
)
1482 Aml
*var
= aml_alloc();
1483 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1484 build_append_byte(var
->buf
, 0x23); /* AcquireOp */
1485 aml_append(var
, mutex
);
1486 build_append_int_noprefix(var
->buf
, timeout
, sizeof(timeout
));
1490 /* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefRelease */
1491 Aml
*aml_release(Aml
*mutex
)
1493 Aml
*var
= aml_alloc();
1494 build_append_byte(var
->buf
, 0x5B); /* ExtOpPrefix */
1495 build_append_byte(var
->buf
, 0x27); /* ReleaseOp */
1496 aml_append(var
, mutex
);
1500 /* ACPI 1.0b: 16.2.5.1 Name Space Modifier Objects Encoding: DefAlias */
1501 Aml
*aml_alias(const char *source_object
, const char *alias_object
)
1503 Aml
*var
= aml_opcode(0x06 /* AliasOp */);
1504 aml_append(var
, aml_name("%s", source_object
));
1505 aml_append(var
, aml_name("%s", alias_object
));
1509 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefConcat */
1510 Aml
*aml_concatenate(Aml
*source1
, Aml
*source2
, Aml
*target
)
1512 return build_opcode_2arg_dst(0x73 /* ConcatOp */, source1
, source2
,
1516 /* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefObjectType */
1517 Aml
*aml_object_type(Aml
*object
)
1519 Aml
*var
= aml_opcode(0x8E /* ObjectTypeOp */);
1520 aml_append(var
, object
);
1525 build_header(BIOSLinker
*linker
, GArray
*table_data
,
1526 AcpiTableHeader
*h
, const char *sig
, int len
, uint8_t rev
,
1527 const char *oem_id
, const char *oem_table_id
)
1529 unsigned tbl_offset
= (char *)h
- table_data
->data
;
1530 unsigned checksum_offset
= (char *)&h
->checksum
- table_data
->data
;
1531 memcpy(&h
->signature
, sig
, 4);
1532 h
->length
= cpu_to_le32(len
);
1536 strncpy((char *)h
->oem_id
, oem_id
, sizeof h
->oem_id
);
1538 memcpy(h
->oem_id
, ACPI_BUILD_APPNAME6
, 6);
1542 strncpy((char *)h
->oem_table_id
, oem_table_id
, sizeof(h
->oem_table_id
));
1544 memcpy(h
->oem_table_id
, ACPI_BUILD_APPNAME4
, 4);
1545 memcpy(h
->oem_table_id
+ 4, sig
, 4);
1548 h
->oem_revision
= cpu_to_le32(1);
1549 memcpy(h
->asl_compiler_id
, ACPI_BUILD_APPNAME4
, 4);
1550 h
->asl_compiler_revision
= cpu_to_le32(1);
1551 /* Checksum to be filled in by Guest linker */
1552 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_TABLE_FILE
,
1553 tbl_offset
, len
, checksum_offset
);
1556 void *acpi_data_push(GArray
*table_data
, unsigned size
)
1558 unsigned off
= table_data
->len
;
1559 g_array_set_size(table_data
, off
+ size
);
1560 return table_data
->data
+ off
;
1563 unsigned acpi_data_len(GArray
*table
)
1565 assert(g_array_get_element_size(table
) == 1);
1569 void acpi_add_table(GArray
*table_offsets
, GArray
*table_data
)
1571 uint32_t offset
= table_data
->len
;
1572 g_array_append_val(table_offsets
, offset
);
1575 void acpi_build_tables_init(AcpiBuildTables
*tables
)
1577 tables
->rsdp
= g_array_new(false, true /* clear */, 1);
1578 tables
->table_data
= g_array_new(false, true /* clear */, 1);
1579 tables
->tcpalog
= g_array_new(false, true /* clear */, 1);
1580 tables
->vmgenid
= g_array_new(false, true /* clear */, 1);
1581 tables
->linker
= bios_linker_loader_init();
1584 void acpi_build_tables_cleanup(AcpiBuildTables
*tables
, bool mfre
)
1586 bios_linker_loader_cleanup(tables
->linker
);
1587 g_array_free(tables
->rsdp
, true);
1588 g_array_free(tables
->table_data
, true);
1589 g_array_free(tables
->tcpalog
, mfre
);
1590 g_array_free(tables
->vmgenid
, mfre
);
1594 * ACPI spec 5.2.5.3 Root System Description Pointer (RSDP).
1595 * (Revision 1.0 or later)
1598 build_rsdp(GArray
*tbl
, BIOSLinker
*linker
, AcpiRsdpData
*rsdp_data
)
1600 int tbl_off
= tbl
->len
; /* Table offset in the RSDP file */
1602 switch (rsdp_data
->revision
) {
1604 /* With ACPI 1.0, we must have an RSDT pointer */
1605 g_assert(rsdp_data
->rsdt_tbl_offset
);
1608 /* With ACPI 2.0+, we must have an XSDT pointer */
1609 g_assert(rsdp_data
->xsdt_tbl_offset
);
1612 /* Only revisions 0 (ACPI 1.0) and 2 (ACPI 2.0+) are valid for RSDP */
1613 g_assert_not_reached();
1616 bios_linker_loader_alloc(linker
, ACPI_BUILD_RSDP_FILE
, tbl
, 16,
1617 true /* fseg memory */);
1619 g_array_append_vals(tbl
, "RSD PTR ", 8); /* Signature */
1620 build_append_int_noprefix(tbl
, 0, 1); /* Checksum */
1621 g_array_append_vals(tbl
, rsdp_data
->oem_id
, 6); /* OEMID */
1622 build_append_int_noprefix(tbl
, rsdp_data
->revision
, 1); /* Revision */
1623 build_append_int_noprefix(tbl
, 0, 4); /* RsdtAddress */
1624 if (rsdp_data
->rsdt_tbl_offset
) {
1625 /* RSDT address to be filled by guest linker */
1626 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_RSDP_FILE
,
1628 ACPI_BUILD_TABLE_FILE
,
1629 *rsdp_data
->rsdt_tbl_offset
);
1632 /* Checksum to be filled by guest linker */
1633 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_RSDP_FILE
,
1634 tbl_off
, 20, /* ACPI rev 1.0 RSDP size */
1637 if (rsdp_data
->revision
== 0) {
1638 /* ACPI 1.0 RSDP, we're done */
1642 build_append_int_noprefix(tbl
, 36, 4); /* Length */
1644 /* XSDT address to be filled by guest linker */
1645 build_append_int_noprefix(tbl
, 0, 8); /* XsdtAddress */
1646 /* We already validated our xsdt pointer */
1647 bios_linker_loader_add_pointer(linker
, ACPI_BUILD_RSDP_FILE
,
1649 ACPI_BUILD_TABLE_FILE
,
1650 *rsdp_data
->xsdt_tbl_offset
);
1652 build_append_int_noprefix(tbl
, 0, 1); /* Extended Checksum */
1653 build_append_int_noprefix(tbl
, 0, 3); /* Reserved */
1655 /* Extended checksum to be filled by Guest linker */
1656 bios_linker_loader_add_checksum(linker
, ACPI_BUILD_RSDP_FILE
,
1657 tbl_off
, 36, /* ACPI rev 2.0 RSDP size */
1661 /* Build rsdt table */
1663 build_rsdt(GArray
*table_data
, BIOSLinker
*linker
, GArray
*table_offsets
,
1664 const char *oem_id
, const char *oem_table_id
)
1667 unsigned rsdt_entries_offset
;
1668 AcpiRsdtDescriptorRev1
*rsdt
;
1669 const unsigned table_data_len
= (sizeof(uint32_t) * table_offsets
->len
);
1670 const unsigned rsdt_entry_size
= sizeof(rsdt
->table_offset_entry
[0]);
1671 const size_t rsdt_len
= sizeof(*rsdt
) + table_data_len
;
1673 rsdt
= acpi_data_push(table_data
, rsdt_len
);
1674 rsdt_entries_offset
= (char *)rsdt
->table_offset_entry
- table_data
->data
;
1675 for (i
= 0; i
< table_offsets
->len
; ++i
) {
1676 uint32_t ref_tbl_offset
= g_array_index(table_offsets
, uint32_t, i
);
1677 uint32_t rsdt_entry_offset
= rsdt_entries_offset
+ rsdt_entry_size
* i
;
1679 /* rsdt->table_offset_entry to be filled by Guest linker */
1680 bios_linker_loader_add_pointer(linker
,
1681 ACPI_BUILD_TABLE_FILE
, rsdt_entry_offset
, rsdt_entry_size
,
1682 ACPI_BUILD_TABLE_FILE
, ref_tbl_offset
);
1684 build_header(linker
, table_data
,
1685 (void *)rsdt
, "RSDT", rsdt_len
, 1, oem_id
, oem_table_id
);
1688 /* Build xsdt table */
1690 build_xsdt(GArray
*table_data
, BIOSLinker
*linker
, GArray
*table_offsets
,
1691 const char *oem_id
, const char *oem_table_id
)
1694 unsigned xsdt_entries_offset
;
1695 AcpiXsdtDescriptorRev2
*xsdt
;
1696 const unsigned table_data_len
= (sizeof(uint64_t) * table_offsets
->len
);
1697 const unsigned xsdt_entry_size
= sizeof(xsdt
->table_offset_entry
[0]);
1698 const size_t xsdt_len
= sizeof(*xsdt
) + table_data_len
;
1700 xsdt
= acpi_data_push(table_data
, xsdt_len
);
1701 xsdt_entries_offset
= (char *)xsdt
->table_offset_entry
- table_data
->data
;
1702 for (i
= 0; i
< table_offsets
->len
; ++i
) {
1703 uint64_t ref_tbl_offset
= g_array_index(table_offsets
, uint32_t, i
);
1704 uint64_t xsdt_entry_offset
= xsdt_entries_offset
+ xsdt_entry_size
* i
;
1706 /* xsdt->table_offset_entry to be filled by Guest linker */
1707 bios_linker_loader_add_pointer(linker
,
1708 ACPI_BUILD_TABLE_FILE
, xsdt_entry_offset
, xsdt_entry_size
,
1709 ACPI_BUILD_TABLE_FILE
, ref_tbl_offset
);
1711 build_header(linker
, table_data
,
1712 (void *)xsdt
, "XSDT", xsdt_len
, 1, oem_id
, oem_table_id
);
1715 void build_srat_memory(AcpiSratMemoryAffinity
*numamem
, uint64_t base
,
1716 uint64_t len
, int node
, MemoryAffinityFlags flags
)
1718 numamem
->type
= ACPI_SRAT_MEMORY
;
1719 numamem
->length
= sizeof(*numamem
);
1720 numamem
->proximity
= cpu_to_le32(node
);
1721 numamem
->flags
= cpu_to_le32(flags
);
1722 numamem
->base_addr
= cpu_to_le64(base
);
1723 numamem
->range_length
= cpu_to_le64(len
);
1727 * ACPI spec 5.2.17 System Locality Distance Information Table
1728 * (Revision 2.0 or later)
1730 void build_slit(GArray
*table_data
, BIOSLinker
*linker
, MachineState
*ms
)
1732 int slit_start
, i
, j
;
1733 slit_start
= table_data
->len
;
1734 int nb_numa_nodes
= ms
->numa_state
->num_nodes
;
1736 acpi_data_push(table_data
, sizeof(AcpiTableHeader
));
1738 build_append_int_noprefix(table_data
, nb_numa_nodes
, 8);
1739 for (i
= 0; i
< nb_numa_nodes
; i
++) {
1740 for (j
= 0; j
< nb_numa_nodes
; j
++) {
1741 assert(ms
->numa_state
->nodes
[i
].distance
[j
]);
1742 build_append_int_noprefix(table_data
,
1743 ms
->numa_state
->nodes
[i
].distance
[j
],
1748 build_header(linker
, table_data
,
1749 (void *)(table_data
->data
+ slit_start
),
1751 table_data
->len
- slit_start
, 1, NULL
, NULL
);
1754 /* build rev1/rev3/rev5.1 FADT */
1755 void build_fadt(GArray
*tbl
, BIOSLinker
*linker
, const AcpiFadtData
*f
,
1756 const char *oem_id
, const char *oem_table_id
)
1759 int fadt_start
= tbl
->len
;
1761 acpi_data_push(tbl
, sizeof(AcpiTableHeader
));
1763 /* FACS address to be filled by Guest linker at runtime */
1765 build_append_int_noprefix(tbl
, 0, 4); /* FIRMWARE_CTRL */
1766 if (f
->facs_tbl_offset
) { /* don't patch if not supported by platform */
1767 bios_linker_loader_add_pointer(linker
,
1768 ACPI_BUILD_TABLE_FILE
, off
, 4,
1769 ACPI_BUILD_TABLE_FILE
, *f
->facs_tbl_offset
);
1772 /* DSDT address to be filled by Guest linker at runtime */
1774 build_append_int_noprefix(tbl
, 0, 4); /* DSDT */
1775 if (f
->dsdt_tbl_offset
) { /* don't patch if not supported by platform */
1776 bios_linker_loader_add_pointer(linker
,
1777 ACPI_BUILD_TABLE_FILE
, off
, 4,
1778 ACPI_BUILD_TABLE_FILE
, *f
->dsdt_tbl_offset
);
1781 /* ACPI1.0: INT_MODEL, ACPI2.0+: Reserved */
1782 build_append_int_noprefix(tbl
, f
->int_model
/* Multiple APIC */, 1);
1783 /* Preferred_PM_Profile */
1784 build_append_int_noprefix(tbl
, 0 /* Unspecified */, 1);
1785 build_append_int_noprefix(tbl
, f
->sci_int
, 2); /* SCI_INT */
1786 build_append_int_noprefix(tbl
, f
->smi_cmd
, 4); /* SMI_CMD */
1787 build_append_int_noprefix(tbl
, f
->acpi_enable_cmd
, 1); /* ACPI_ENABLE */
1788 build_append_int_noprefix(tbl
, f
->acpi_disable_cmd
, 1); /* ACPI_DISABLE */
1789 build_append_int_noprefix(tbl
, 0 /* not supported */, 1); /* S4BIOS_REQ */
1790 /* ACPI1.0: Reserved, ACPI2.0+: PSTATE_CNT */
1791 build_append_int_noprefix(tbl
, 0, 1);
1792 build_append_int_noprefix(tbl
, f
->pm1a_evt
.address
, 4); /* PM1a_EVT_BLK */
1793 build_append_int_noprefix(tbl
, 0, 4); /* PM1b_EVT_BLK */
1794 build_append_int_noprefix(tbl
, f
->pm1a_cnt
.address
, 4); /* PM1a_CNT_BLK */
1795 build_append_int_noprefix(tbl
, 0, 4); /* PM1b_CNT_BLK */
1796 build_append_int_noprefix(tbl
, 0, 4); /* PM2_CNT_BLK */
1797 build_append_int_noprefix(tbl
, f
->pm_tmr
.address
, 4); /* PM_TMR_BLK */
1798 build_append_int_noprefix(tbl
, f
->gpe0_blk
.address
, 4); /* GPE0_BLK */
1799 build_append_int_noprefix(tbl
, 0, 4); /* GPE1_BLK */
1801 build_append_int_noprefix(tbl
, f
->pm1a_evt
.bit_width
/ 8, 1);
1803 build_append_int_noprefix(tbl
, f
->pm1a_cnt
.bit_width
/ 8, 1);
1804 build_append_int_noprefix(tbl
, 0, 1); /* PM2_CNT_LEN */
1805 build_append_int_noprefix(tbl
, f
->pm_tmr
.bit_width
/ 8, 1); /* PM_TMR_LEN */
1807 build_append_int_noprefix(tbl
, f
->gpe0_blk
.bit_width
/ 8, 1);
1808 build_append_int_noprefix(tbl
, 0, 1); /* GPE1_BLK_LEN */
1809 build_append_int_noprefix(tbl
, 0, 1); /* GPE1_BASE */
1810 build_append_int_noprefix(tbl
, 0, 1); /* CST_CNT */
1811 build_append_int_noprefix(tbl
, f
->plvl2_lat
, 2); /* P_LVL2_LAT */
1812 build_append_int_noprefix(tbl
, f
->plvl3_lat
, 2); /* P_LVL3_LAT */
1813 build_append_int_noprefix(tbl
, 0, 2); /* FLUSH_SIZE */
1814 build_append_int_noprefix(tbl
, 0, 2); /* FLUSH_STRIDE */
1815 build_append_int_noprefix(tbl
, 0, 1); /* DUTY_OFFSET */
1816 build_append_int_noprefix(tbl
, 0, 1); /* DUTY_WIDTH */
1817 build_append_int_noprefix(tbl
, 0, 1); /* DAY_ALRM */
1818 build_append_int_noprefix(tbl
, 0, 1); /* MON_ALRM */
1819 build_append_int_noprefix(tbl
, f
->rtc_century
, 1); /* CENTURY */
1820 build_append_int_noprefix(tbl
, 0, 2); /* IAPC_BOOT_ARCH */
1821 build_append_int_noprefix(tbl
, 0, 1); /* Reserved */
1822 build_append_int_noprefix(tbl
, f
->flags
, 4); /* Flags */
1828 build_append_gas_from_struct(tbl
, &f
->reset_reg
); /* RESET_REG */
1829 build_append_int_noprefix(tbl
, f
->reset_val
, 1); /* RESET_VALUE */
1830 /* Since ACPI 5.1 */
1831 if ((f
->rev
>= 6) || ((f
->rev
== 5) && f
->minor_ver
> 0)) {
1832 build_append_int_noprefix(tbl
, f
->arm_boot_arch
, 2); /* ARM_BOOT_ARCH */
1833 /* FADT Minor Version */
1834 build_append_int_noprefix(tbl
, f
->minor_ver
, 1);
1836 build_append_int_noprefix(tbl
, 0, 3); /* Reserved upto ACPI 5.0 */
1838 build_append_int_noprefix(tbl
, 0, 8); /* X_FIRMWARE_CTRL */
1840 /* XDSDT address to be filled by Guest linker at runtime */
1842 build_append_int_noprefix(tbl
, 0, 8); /* X_DSDT */
1843 if (f
->xdsdt_tbl_offset
) {
1844 bios_linker_loader_add_pointer(linker
,
1845 ACPI_BUILD_TABLE_FILE
, off
, 8,
1846 ACPI_BUILD_TABLE_FILE
, *f
->xdsdt_tbl_offset
);
1849 build_append_gas_from_struct(tbl
, &f
->pm1a_evt
); /* X_PM1a_EVT_BLK */
1850 /* X_PM1b_EVT_BLK */
1851 build_append_gas(tbl
, AML_AS_SYSTEM_MEMORY
, 0 , 0, 0, 0);
1852 build_append_gas_from_struct(tbl
, &f
->pm1a_cnt
); /* X_PM1a_CNT_BLK */
1853 /* X_PM1b_CNT_BLK */
1854 build_append_gas(tbl
, AML_AS_SYSTEM_MEMORY
, 0 , 0, 0, 0);
1856 build_append_gas(tbl
, AML_AS_SYSTEM_MEMORY
, 0 , 0, 0, 0);
1857 build_append_gas_from_struct(tbl
, &f
->pm_tmr
); /* X_PM_TMR_BLK */
1858 build_append_gas_from_struct(tbl
, &f
->gpe0_blk
); /* X_GPE0_BLK */
1859 build_append_gas(tbl
, AML_AS_SYSTEM_MEMORY
, 0 , 0, 0, 0); /* X_GPE1_BLK */
1865 /* SLEEP_CONTROL_REG */
1866 build_append_gas(tbl
, AML_AS_SYSTEM_MEMORY
, 0 , 0, 0, 0);
1867 /* SLEEP_STATUS_REG */
1868 build_append_gas(tbl
, AML_AS_SYSTEM_MEMORY
, 0 , 0, 0, 0);
1870 /* TODO: extra fields need to be added to support revisions above rev5 */
1871 assert(f
->rev
== 5);
1874 build_header(linker
, tbl
, (void *)(tbl
->data
+ fadt_start
),
1875 "FACP", tbl
->len
- fadt_start
, f
->rev
, oem_id
, oem_table_id
);
1878 /* ACPI 5.0: 6.4.3.8.2 Serial Bus Connection Descriptors */
1879 static Aml
*aml_serial_bus_device(uint8_t serial_bus_type
, uint8_t flags
,
1880 uint16_t type_flags
,
1881 uint8_t revid
, uint16_t data_length
,
1882 uint16_t resource_source_len
)
1884 Aml
*var
= aml_alloc();
1885 uint16_t length
= data_length
+ resource_source_len
+ 9;
1887 build_append_byte(var
->buf
, 0x8e); /* Serial Bus Connection Descriptor */
1888 build_append_int_noprefix(var
->buf
, length
, sizeof(length
));
1889 build_append_byte(var
->buf
, 1); /* Revision ID */
1890 build_append_byte(var
->buf
, 0); /* Resource Source Index */
1891 build_append_byte(var
->buf
, serial_bus_type
); /* Serial Bus Type */
1892 build_append_byte(var
->buf
, flags
); /* General Flags */
1893 build_append_int_noprefix(var
->buf
, type_flags
, /* Type Specific Flags */
1894 sizeof(type_flags
));
1895 build_append_byte(var
->buf
, revid
); /* Type Specification Revision ID */
1896 build_append_int_noprefix(var
->buf
, data_length
, sizeof(data_length
));
1901 /* ACPI 5.0: 6.4.3.8.2.1 I2C Serial Bus Connection Resource Descriptor */
1902 Aml
*aml_i2c_serial_bus_device(uint16_t address
, const char *resource_source
)
1904 uint16_t resource_source_len
= strlen(resource_source
) + 1;
1905 Aml
*var
= aml_serial_bus_device(AML_SERIAL_BUS_TYPE_I2C
, 0, 0, 1,
1906 6, resource_source_len
);
1908 /* Connection Speed. Just set to 100K for now, it doesn't really matter. */
1909 build_append_int_noprefix(var
->buf
, 100000, 4);
1910 build_append_int_noprefix(var
->buf
, address
, sizeof(address
));
1912 /* This is a string, not a name, so just copy it directly in. */
1913 g_array_append_vals(var
->buf
, resource_source
, resource_source_len
);