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qemu/hw/acpi/aml-build.c
Miguel Luis 4496d1d3eb acpi: fadt: support revision 6.0 of the ACPI specification 
Update the Fixed ACPI Description Table (FADT) to revision 6.0 of the ACPI
specification adding the field "Hypervisor Vendor Identity".

This field's description states the following: "64-bit identifier of hypervisor
vendor. All bytes in this field are considered part of the vendor identity.
These identifiers are defined independently by the vendors themselves,
usually following the name of the hypervisor product. Version information
should NOT be included in this field - this shall simply denote the vendor's
name or identifier. Version information can be communicated through a
supplemental vendor-specific hypervisor API. Firmware implementers would
place zero bytes into this field, denoting that no hypervisor is present in
the actual firmware."

Signed-off-by: Miguel Luis <miguel.luis@oracle.com>
Reviewed-by: Ani Sinha <ani@anisinha.ca>
Message-Id: <20221011181730.10885-3-miguel.luis@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2022-11-07 13:12:19 -05:00

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/* Support for generating ACPI tables and passing them to Guests
*
* Copyright (C) 2015 Red Hat Inc
*
* Author: Michael S. Tsirkin <mst@redhat.com>
* Author: Igor Mammedov <imammedo@redhat.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License along
* with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "qemu/osdep.h"
#include <glib/gprintf.h>
#include "hw/acpi/aml-build.h"
#include "qemu/bswap.h"
#include "qemu/bitops.h"
#include "sysemu/numa.h"
#include "hw/boards.h"
#include "hw/acpi/tpm.h"
#include "hw/pci/pci_host.h"
#include "hw/pci/pci_bus.h"
#include "hw/pci/pci_bridge.h"
#include "qemu/cutils.h"
static GArray *build_alloc_array(void)
{
return g_array_new(false, true /* clear */, 1);
}
static void build_free_array(GArray *array)
{
g_array_free(array, true);
}
static void build_prepend_byte(GArray *array, uint8_t val)
{
g_array_prepend_val(array, val);
}
static void build_append_byte(GArray *array, uint8_t val)
{
g_array_append_val(array, val);
}
static void build_append_padded_str(GArray *array, const char *str,
size_t maxlen, char pad)
{
size_t i;
size_t len = strlen(str);
g_assert(len <= maxlen);
g_array_append_vals(array, str, len);
for (i = maxlen - len; i > 0; i--) {
g_array_append_val(array, pad);
}
}
static void build_append_array(GArray *array, GArray *val)
{
g_array_append_vals(array, val->data, val->len);
}
#define ACPI_NAMESEG_LEN 4
void crs_range_insert(GPtrArray *ranges, uint64_t base, uint64_t limit)
{
CrsRangeEntry *entry;
entry = g_malloc(sizeof(*entry));
entry->base = base;
entry->limit = limit;
g_ptr_array_add(ranges, entry);
}
static void crs_range_free(gpointer data)
{
CrsRangeEntry *entry = (CrsRangeEntry *)data;
g_free(entry);
}
void crs_range_set_init(CrsRangeSet *range_set)
{
range_set->io_ranges = g_ptr_array_new_with_free_func(crs_range_free);
range_set->mem_ranges = g_ptr_array_new_with_free_func(crs_range_free);
range_set->mem_64bit_ranges =
g_ptr_array_new_with_free_func(crs_range_free);
}
void crs_range_set_free(CrsRangeSet *range_set)
{
g_ptr_array_free(range_set->io_ranges, true);
g_ptr_array_free(range_set->mem_ranges, true);
g_ptr_array_free(range_set->mem_64bit_ranges, true);
}
static gint crs_range_compare(gconstpointer a, gconstpointer b)
{
CrsRangeEntry *entry_a = *(CrsRangeEntry **)a;
CrsRangeEntry *entry_b = *(CrsRangeEntry **)b;
if (entry_a->base < entry_b->base) {
return -1;
} else if (entry_a->base > entry_b->base) {
return 1;
} else {
return 0;
}
}
/*
* crs_replace_with_free_ranges - given the 'used' ranges within [start - end]
* interval, computes the 'free' ranges from the same interval.
* Example: If the input array is { [a1 - a2],[b1 - b2] }, the function
* will return { [base - a1], [a2 - b1], [b2 - limit] }.
*/
void crs_replace_with_free_ranges(GPtrArray *ranges,
uint64_t start, uint64_t end)
{
GPtrArray *free_ranges = g_ptr_array_new();
uint64_t free_base = start;
int i;
g_ptr_array_sort(ranges, crs_range_compare);
for (i = 0; i < ranges->len; i++) {
CrsRangeEntry *used = g_ptr_array_index(ranges, i);
if (free_base < used->base) {
crs_range_insert(free_ranges, free_base, used->base - 1);
}
free_base = used->limit + 1;
}
if (free_base < end) {
crs_range_insert(free_ranges, free_base, end);
}
g_ptr_array_set_size(ranges, 0);
for (i = 0; i < free_ranges->len; i++) {
g_ptr_array_add(ranges, g_ptr_array_index(free_ranges, i));
}
g_ptr_array_free(free_ranges, true);
}
/*
* crs_range_merge - merges adjacent ranges in the given array.
* Array elements are deleted and replaced with the merged ranges.
*/
static void crs_range_merge(GPtrArray *range)
{
GPtrArray *tmp = g_ptr_array_new_with_free_func(crs_range_free);
CrsRangeEntry *entry;
uint64_t range_base, range_limit;
int i;
if (!range->len) {
return;
}
g_ptr_array_sort(range, crs_range_compare);
entry = g_ptr_array_index(range, 0);
range_base = entry->base;
range_limit = entry->limit;
for (i = 1; i < range->len; i++) {
entry = g_ptr_array_index(range, i);
if (entry->base - 1 == range_limit) {
range_limit = entry->limit;
} else {
crs_range_insert(tmp, range_base, range_limit);
range_base = entry->base;
range_limit = entry->limit;
}
}
crs_range_insert(tmp, range_base, range_limit);
g_ptr_array_set_size(range, 0);
for (i = 0; i < tmp->len; i++) {
entry = g_ptr_array_index(tmp, i);
crs_range_insert(range, entry->base, entry->limit);
}
g_ptr_array_free(tmp, true);
}
static void
build_append_nameseg(GArray *array, const char *seg)
{
int len;
len = strlen(seg);
assert(len <= ACPI_NAMESEG_LEN);
g_array_append_vals(array, seg, len);
/* Pad up to ACPI_NAMESEG_LEN characters if necessary. */
g_array_append_vals(array, "____", ACPI_NAMESEG_LEN - len);
}
static void G_GNUC_PRINTF(2, 0)
build_append_namestringv(GArray *array, const char *format, va_list ap)
{
char *s;
char **segs;
char **segs_iter;
int seg_count = 0;
s = g_strdup_vprintf(format, ap);
segs = g_strsplit(s, ".", 0);
g_free(s);
/* count segments */
segs_iter = segs;
while (*segs_iter) {
++segs_iter;
++seg_count;
}
/*
* ACPI 5.0 spec: 20.2.2 Name Objects Encoding:
* "SegCount can be from 1 to 255"
*/
assert(seg_count > 0 && seg_count <= 255);
/* handle RootPath || PrefixPath */
s = *segs;
while (*s == '\\' || *s == '^') {
build_append_byte(array, *s);
++s;
}
switch (seg_count) {
case 1:
if (!*s) {
build_append_byte(array, 0x00); /* NullName */
} else {
build_append_nameseg(array, s);
}
break;
case 2:
build_append_byte(array, 0x2E); /* DualNamePrefix */
build_append_nameseg(array, s);
build_append_nameseg(array, segs[1]);
break;
default:
build_append_byte(array, 0x2F); /* MultiNamePrefix */
build_append_byte(array, seg_count);
/* handle the 1st segment manually due to prefix/root path */
build_append_nameseg(array, s);
/* add the rest of segments */
segs_iter = segs + 1;
while (*segs_iter) {
build_append_nameseg(array, *segs_iter);
++segs_iter;
}
break;
}
g_strfreev(segs);
}
G_GNUC_PRINTF(2, 3)
static void build_append_namestring(GArray *array, const char *format, ...)
{
va_list ap;
va_start(ap, format);
build_append_namestringv(array, format, ap);
va_end(ap);
}
/* 5.4 Definition Block Encoding */
enum {
PACKAGE_LENGTH_1BYTE_SHIFT = 6, /* Up to 63 - use extra 2 bits. */
PACKAGE_LENGTH_2BYTE_SHIFT = 4,
PACKAGE_LENGTH_3BYTE_SHIFT = 12,
PACKAGE_LENGTH_4BYTE_SHIFT = 20,
};
static void
build_prepend_package_length(GArray *package, unsigned length, bool incl_self)
{
uint8_t byte;
unsigned length_bytes;
if (length + 1 < (1 << PACKAGE_LENGTH_1BYTE_SHIFT)) {
length_bytes = 1;
} else if (length + 2 < (1 << PACKAGE_LENGTH_3BYTE_SHIFT)) {
length_bytes = 2;
} else if (length + 3 < (1 << PACKAGE_LENGTH_4BYTE_SHIFT)) {
length_bytes = 3;
} else {
length_bytes = 4;
}
/*
* NamedField uses PkgLength encoding but it doesn't include length
* of PkgLength itself.
*/
if (incl_self) {
/*
* PkgLength is the length of the inclusive length of the data
* and PkgLength's length itself when used for terms with
* explitit length.
*/
length += length_bytes;
}
switch (length_bytes) {
case 1:
byte = length;
build_prepend_byte(package, byte);
return;
case 4:
byte = length >> PACKAGE_LENGTH_4BYTE_SHIFT;
build_prepend_byte(package, byte);
length &= (1 << PACKAGE_LENGTH_4BYTE_SHIFT) - 1;
/* fall through */
case 3:
byte = length >> PACKAGE_LENGTH_3BYTE_SHIFT;
build_prepend_byte(package, byte);
length &= (1 << PACKAGE_LENGTH_3BYTE_SHIFT) - 1;
/* fall through */
case 2:
byte = length >> PACKAGE_LENGTH_2BYTE_SHIFT;
build_prepend_byte(package, byte);
length &= (1 << PACKAGE_LENGTH_2BYTE_SHIFT) - 1;
/* fall through */
}
/*
* Most significant two bits of byte zero indicate how many following bytes
* are in PkgLength encoding.
*/
byte = ((length_bytes - 1) << PACKAGE_LENGTH_1BYTE_SHIFT) | length;
build_prepend_byte(package, byte);
}
static void
build_append_pkg_length(GArray *array, unsigned length, bool incl_self)
{
GArray *tmp = build_alloc_array();
build_prepend_package_length(tmp, length, incl_self);
build_append_array(array, tmp);
build_free_array(tmp);
}
static void build_package(GArray *package, uint8_t op)
{
build_prepend_package_length(package, package->len, true);
build_prepend_byte(package, op);
}
static void build_extop_package(GArray *package, uint8_t op)
{
build_package(package, op);
build_prepend_byte(package, 0x5B); /* ExtOpPrefix */
}
void build_append_int_noprefix(GArray *table, uint64_t value, int size)
{
int i;
for (i = 0; i < size; ++i) {
build_append_byte(table, value & 0xFF);
value = value >> 8;
}
}
static void build_append_int(GArray *table, uint64_t value)
{
if (value == 0x00) {
build_append_byte(table, 0x00); /* ZeroOp */
} else if (value == 0x01) {
build_append_byte(table, 0x01); /* OneOp */
} else if (value <= 0xFF) {
build_append_byte(table, 0x0A); /* BytePrefix */
build_append_int_noprefix(table, value, 1);
} else if (value <= 0xFFFF) {
build_append_byte(table, 0x0B); /* WordPrefix */
build_append_int_noprefix(table, value, 2);
} else if (value <= 0xFFFFFFFF) {
build_append_byte(table, 0x0C); /* DWordPrefix */
build_append_int_noprefix(table, value, 4);
} else {
build_append_byte(table, 0x0E); /* QWordPrefix */
build_append_int_noprefix(table, value, 8);
}
}
/* Generic Address Structure (GAS)
* ACPI 2.0/3.0: 5.2.3.1 Generic Address Structure
* 2.0 compat note:
* @access_width must be 0, see ACPI 2.0:Table 5-1
*/
void build_append_gas(GArray *table, AmlAddressSpace as,
uint8_t bit_width, uint8_t bit_offset,
uint8_t access_width, uint64_t address)
{
build_append_int_noprefix(table, as, 1);
build_append_int_noprefix(table, bit_width, 1);
build_append_int_noprefix(table, bit_offset, 1);
build_append_int_noprefix(table, access_width, 1);
build_append_int_noprefix(table, address, 8);
}
/*
* Build NAME(XXXX, 0x00000000) where 0x00000000 is encoded as a dword,
* and return the offset to 0x00000000 for runtime patching.
*
* Warning: runtime patching is best avoided. Only use this as
* a replacement for DataTableRegion (for guests that don't
* support it).
*/
int
build_append_named_dword(GArray *array, const char *name_format, ...)
{
int offset;
va_list ap;
build_append_byte(array, 0x08); /* NameOp */
va_start(ap, name_format);
build_append_namestringv(array, name_format, ap);
va_end(ap);
build_append_byte(array, 0x0C); /* DWordPrefix */
offset = array->len;
build_append_int_noprefix(array, 0x00000000, 4);
assert(array->len == offset + 4);
return offset;
}
static GPtrArray *alloc_list;
static Aml *aml_alloc(void)
{
Aml *var = g_new0(typeof(*var), 1);
g_ptr_array_add(alloc_list, var);
var->block_flags = AML_NO_OPCODE;
var->buf = build_alloc_array();
return var;
}
static Aml *aml_opcode(uint8_t op)
{
Aml *var = aml_alloc();
var->op = op;
var->block_flags = AML_OPCODE;
return var;
}
static Aml *aml_bundle(uint8_t op, AmlBlockFlags flags)
{
Aml *var = aml_alloc();
var->op = op;
var->block_flags = flags;
return var;
}
static void aml_free(gpointer data, gpointer user_data)
{
Aml *var = data;
build_free_array(var->buf);
g_free(var);
}
Aml *init_aml_allocator(void)
{
assert(!alloc_list);
alloc_list = g_ptr_array_new();
return aml_alloc();
}
void free_aml_allocator(void)
{
g_ptr_array_foreach(alloc_list, aml_free, NULL);
g_ptr_array_free(alloc_list, true);
alloc_list = 0;
}
/* pack data with DefBuffer encoding */
static void build_buffer(GArray *array, uint8_t op)
{
GArray *data = build_alloc_array();
build_append_int(data, array->len);
g_array_prepend_vals(array, data->data, data->len);
build_free_array(data);
build_package(array, op);
}
void aml_append(Aml *parent_ctx, Aml *child)
{
GArray *buf = build_alloc_array();
build_append_array(buf, child->buf);
switch (child->block_flags) {
case AML_OPCODE:
build_append_byte(parent_ctx->buf, child->op);
break;
case AML_EXT_PACKAGE:
build_extop_package(buf, child->op);
break;
case AML_PACKAGE:
build_package(buf, child->op);
break;
case AML_RES_TEMPLATE:
build_append_byte(buf, 0x79); /* EndTag */
/*
* checksum operations are treated as succeeded if checksum
* field is zero. [ACPI Spec 1.0b, 6.4.2.8 End Tag]
*/
build_append_byte(buf, 0);
/* fall through, to pack resources in buffer */
case AML_BUFFER:
build_buffer(buf, child->op);
break;
case AML_NO_OPCODE:
break;
default:
assert(0);
break;
}
build_append_array(parent_ctx->buf, buf);
build_free_array(buf);
}
/* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefScope */
Aml *aml_scope(const char *name_format, ...)
{
va_list ap;
Aml *var = aml_bundle(0x10 /* ScopeOp */, AML_PACKAGE);
va_start(ap, name_format);
build_append_namestringv(var->buf, name_format, ap);
va_end(ap);
return var;
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefReturn */
Aml *aml_return(Aml *val)
{
Aml *var = aml_opcode(0xA4 /* ReturnOp */);
aml_append(var, val);
return var;
}
/* ACPI 1.0b: 16.2.6.3 Debug Objects Encoding: DebugObj */
Aml *aml_debug(void)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
build_append_byte(var->buf, 0x31); /* DebugOp */
return var;
}
/*
* ACPI 1.0b: 16.2.3 Data Objects Encoding:
* encodes: ByteConst, WordConst, DWordConst, QWordConst, ZeroOp, OneOp
*/
Aml *aml_int(const uint64_t val)
{
Aml *var = aml_alloc();
build_append_int(var->buf, val);
return var;
}
/*
* helper to construct NameString, which returns Aml object
* for using with aml_append or other aml_* terms
*/
Aml *aml_name(const char *name_format, ...)
{
va_list ap;
Aml *var = aml_alloc();
va_start(ap, name_format);
build_append_namestringv(var->buf, name_format, ap);
va_end(ap);
return var;
}
/* ACPI 1.0b: 16.2.5.1 Namespace Modifier Objects Encoding: DefName */
Aml *aml_name_decl(const char *name, Aml *val)
{
Aml *var = aml_opcode(0x08 /* NameOp */);
build_append_namestring(var->buf, "%s", name);
aml_append(var, val);
return var;
}
/* ACPI 1.0b: 16.2.6.1 Arg Objects Encoding */
Aml *aml_arg(int pos)
{
uint8_t op = 0x68 /* ARG0 op */ + pos;
assert(pos <= 6);
return aml_opcode(op);
}
/* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToInteger */
Aml *aml_to_integer(Aml *arg)
{
Aml *var = aml_opcode(0x99 /* ToIntegerOp */);
aml_append(var, arg);
build_append_byte(var->buf, 0x00 /* NullNameOp */);
return var;
}
/* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToHexString */
Aml *aml_to_hexstring(Aml *src, Aml *dst)
{
Aml *var = aml_opcode(0x98 /* ToHexStringOp */);
aml_append(var, src);
if (dst) {
aml_append(var, dst);
} else {
build_append_byte(var->buf, 0x00 /* NullNameOp */);
}
return var;
}
/* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToBuffer */
Aml *aml_to_buffer(Aml *src, Aml *dst)
{
Aml *var = aml_opcode(0x96 /* ToBufferOp */);
aml_append(var, src);
if (dst) {
aml_append(var, dst);
} else {
build_append_byte(var->buf, 0x00 /* NullNameOp */);
}
return var;
}
/* ACPI 2.0a: 17.2.4.4 Type 2 Opcodes Encoding: DefToDecimalString */
Aml *aml_to_decimalstring(Aml *src, Aml *dst)
{
Aml *var = aml_opcode(0x97 /* ToDecimalStringOp */);
aml_append(var, src);
if (dst) {
aml_append(var, dst);
} else {
build_append_byte(var->buf, 0x00 /* NullNameOp */);
}
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefStore */
Aml *aml_store(Aml *val, Aml *target)
{
Aml *var = aml_opcode(0x70 /* StoreOp */);
aml_append(var, val);
aml_append(var, target);
return var;
}
/**
* build_opcode_2arg_dst:
* @op: 1-byte opcode
* @arg1: 1st operand
* @arg2: 2nd operand
* @dst: optional target to store to, set to NULL if it's not required
*
* An internal helper to compose AML terms that have
* "Op Operand Operand Target"
* pattern.
*
* Returns: The newly allocated and composed according to patter Aml object.
*/
static Aml *
build_opcode_2arg_dst(uint8_t op, Aml *arg1, Aml *arg2, Aml *dst)
{
Aml *var = aml_opcode(op);
aml_append(var, arg1);
aml_append(var, arg2);
if (dst) {
aml_append(var, dst);
} else {
build_append_byte(var->buf, 0x00 /* NullNameOp */);
}
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAnd */
Aml *aml_and(Aml *arg1, Aml *arg2, Aml *dst)
{
return build_opcode_2arg_dst(0x7B /* AndOp */, arg1, arg2, dst);
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefOr */
Aml *aml_or(Aml *arg1, Aml *arg2, Aml *dst)
{
return build_opcode_2arg_dst(0x7D /* OrOp */, arg1, arg2, dst);
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLAnd */
Aml *aml_land(Aml *arg1, Aml *arg2)
{
Aml *var = aml_opcode(0x90 /* LAndOp */);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLOr */
Aml *aml_lor(Aml *arg1, Aml *arg2)
{
Aml *var = aml_opcode(0x91 /* LOrOp */);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftLeft */
Aml *aml_shiftleft(Aml *arg1, Aml *count)
{
return build_opcode_2arg_dst(0x79 /* ShiftLeftOp */, arg1, count, NULL);
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefShiftRight */
Aml *aml_shiftright(Aml *arg1, Aml *count, Aml *dst)
{
return build_opcode_2arg_dst(0x7A /* ShiftRightOp */, arg1, count, dst);
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLLess */
Aml *aml_lless(Aml *arg1, Aml *arg2)
{
Aml *var = aml_opcode(0x95 /* LLessOp */);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAdd */
Aml *aml_add(Aml *arg1, Aml *arg2, Aml *dst)
{
return build_opcode_2arg_dst(0x72 /* AddOp */, arg1, arg2, dst);
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSubtract */
Aml *aml_subtract(Aml *arg1, Aml *arg2, Aml *dst)
{
return build_opcode_2arg_dst(0x74 /* SubtractOp */, arg1, arg2, dst);
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIncrement */
Aml *aml_increment(Aml *arg)
{
Aml *var = aml_opcode(0x75 /* IncrementOp */);
aml_append(var, arg);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDecrement */
Aml *aml_decrement(Aml *arg)
{
Aml *var = aml_opcode(0x76 /* DecrementOp */);
aml_append(var, arg);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefIndex */
Aml *aml_index(Aml *arg1, Aml *idx)
{
return build_opcode_2arg_dst(0x88 /* IndexOp */, arg1, idx, NULL);
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefNotify */
Aml *aml_notify(Aml *arg1, Aml *arg2)
{
Aml *var = aml_opcode(0x86 /* NotifyOp */);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefBreak */
Aml *aml_break(void)
{
Aml *var = aml_opcode(0xa5 /* BreakOp */);
return var;
}
/* helper to call method without argument */
Aml *aml_call0(const char *method)
{
Aml *var = aml_alloc();
build_append_namestring(var->buf, "%s", method);
return var;
}
/* helper to call method with 1 argument */
Aml *aml_call1(const char *method, Aml *arg1)
{
Aml *var = aml_alloc();
build_append_namestring(var->buf, "%s", method);
aml_append(var, arg1);
return var;
}
/* helper to call method with 2 arguments */
Aml *aml_call2(const char *method, Aml *arg1, Aml *arg2)
{
Aml *var = aml_alloc();
build_append_namestring(var->buf, "%s", method);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* helper to call method with 3 arguments */
Aml *aml_call3(const char *method, Aml *arg1, Aml *arg2, Aml *arg3)
{
Aml *var = aml_alloc();
build_append_namestring(var->buf, "%s", method);
aml_append(var, arg1);
aml_append(var, arg2);
aml_append(var, arg3);
return var;
}
/* helper to call method with 4 arguments */
Aml *aml_call4(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4)
{
Aml *var = aml_alloc();
build_append_namestring(var->buf, "%s", method);
aml_append(var, arg1);
aml_append(var, arg2);
aml_append(var, arg3);
aml_append(var, arg4);
return var;
}
/* helper to call method with 5 arguments */
Aml *aml_call5(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4,
Aml *arg5)
{
Aml *var = aml_alloc();
build_append_namestring(var->buf, "%s", method);
aml_append(var, arg1);
aml_append(var, arg2);
aml_append(var, arg3);
aml_append(var, arg4);
aml_append(var, arg5);
return var;
}
/* helper to call method with 5 arguments */
Aml *aml_call6(const char *method, Aml *arg1, Aml *arg2, Aml *arg3, Aml *arg4,
Aml *arg5, Aml *arg6)
{
Aml *var = aml_alloc();
build_append_namestring(var->buf, "%s", method);
aml_append(var, arg1);
aml_append(var, arg2);
aml_append(var, arg3);
aml_append(var, arg4);
aml_append(var, arg5);
aml_append(var, arg6);
return var;
}
/*
* ACPI 5.0: 6.4.3.8.1 GPIO Connection Descriptor
* Type 1, Large Item Name 0xC
*/
static Aml *aml_gpio_connection(AmlGpioConnectionType type,
AmlConsumerAndProducer con_and_pro,
uint8_t flags, AmlPinConfig pin_config,
uint16_t output_drive,
uint16_t debounce_timeout,
const uint32_t pin_list[], uint32_t pin_count,
const char *resource_source_name,
const uint8_t *vendor_data,
uint16_t vendor_data_len)
{
Aml *var = aml_alloc();
const uint16_t min_desc_len = 0x16;
uint16_t resource_source_name_len, length;
uint16_t pin_table_offset, resource_source_name_offset, vendor_data_offset;
uint32_t i;
assert(resource_source_name);
resource_source_name_len = strlen(resource_source_name) + 1;
length = min_desc_len + resource_source_name_len + vendor_data_len;
pin_table_offset = min_desc_len + 1;
resource_source_name_offset = pin_table_offset + pin_count * 2;
vendor_data_offset = resource_source_name_offset + resource_source_name_len;
build_append_byte(var->buf, 0x8C); /* GPIO Connection Descriptor */
build_append_int_noprefix(var->buf, length, 2); /* Length */
build_append_byte(var->buf, 1); /* Revision ID */
build_append_byte(var->buf, type); /* GPIO Connection Type */
/* General Flags (2 bytes) */
build_append_int_noprefix(var->buf, con_and_pro, 2);
/* Interrupt and IO Flags (2 bytes) */
build_append_int_noprefix(var->buf, flags, 2);
/* Pin Configuration 0 = Default 1 = Pull-up 2 = Pull-down 3 = No Pull */
build_append_byte(var->buf, pin_config);
/* Output Drive Strength (2 bytes) */
build_append_int_noprefix(var->buf, output_drive, 2);
/* Debounce Timeout (2 bytes) */
build_append_int_noprefix(var->buf, debounce_timeout, 2);
/* Pin Table Offset (2 bytes) */
build_append_int_noprefix(var->buf, pin_table_offset, 2);
build_append_byte(var->buf, 0); /* Resource Source Index */
/* Resource Source Name Offset (2 bytes) */
build_append_int_noprefix(var->buf, resource_source_name_offset, 2);
/* Vendor Data Offset (2 bytes) */
build_append_int_noprefix(var->buf, vendor_data_offset, 2);
/* Vendor Data Length (2 bytes) */
build_append_int_noprefix(var->buf, vendor_data_len, 2);
/* Pin Number (2n bytes)*/
for (i = 0; i < pin_count; i++) {
build_append_int_noprefix(var->buf, pin_list[i], 2);
}
/* Resource Source Name */
build_append_namestring(var->buf, "%s", resource_source_name);
build_append_byte(var->buf, '\0');
/* Vendor-defined Data */
if (vendor_data != NULL) {
g_array_append_vals(var->buf, vendor_data, vendor_data_len);
}
return var;
}
/*
* ACPI 5.0: 19.5.53
* GpioInt(GPIO Interrupt Connection Resource Descriptor Macro)
*/
Aml *aml_gpio_int(AmlConsumerAndProducer con_and_pro,
AmlLevelAndEdge edge_level,
AmlActiveHighAndLow active_level, AmlShared shared,
AmlPinConfig pin_config, uint16_t debounce_timeout,
const uint32_t pin_list[], uint32_t pin_count,
const char *resource_source_name,
const uint8_t *vendor_data, uint16_t vendor_data_len)
{
uint8_t flags = edge_level | (active_level << 1) | (shared << 3);
return aml_gpio_connection(AML_INTERRUPT_CONNECTION, con_and_pro, flags,
pin_config, 0, debounce_timeout, pin_list,
pin_count, resource_source_name, vendor_data,
vendor_data_len);
}
/*
* ACPI 1.0b: 6.4.3.4 32-Bit Fixed Location Memory Range Descriptor
* (Type 1, Large Item Name 0x6)
*/
Aml *aml_memory32_fixed(uint32_t addr, uint32_t size,
AmlReadAndWrite read_and_write)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x86); /* Memory32Fixed Resource Descriptor */
build_append_byte(var->buf, 9); /* Length, bits[7:0] value = 9 */
build_append_byte(var->buf, 0); /* Length, bits[15:8] value = 0 */
build_append_byte(var->buf, read_and_write); /* Write status, 1 rw 0 ro */
/* Range base address */
build_append_byte(var->buf, extract32(addr, 0, 8)); /* bits[7:0] */
build_append_byte(var->buf, extract32(addr, 8, 8)); /* bits[15:8] */
build_append_byte(var->buf, extract32(addr, 16, 8)); /* bits[23:16] */
build_append_byte(var->buf, extract32(addr, 24, 8)); /* bits[31:24] */
/* Range length */
build_append_byte(var->buf, extract32(size, 0, 8)); /* bits[7:0] */
build_append_byte(var->buf, extract32(size, 8, 8)); /* bits[15:8] */
build_append_byte(var->buf, extract32(size, 16, 8)); /* bits[23:16] */
build_append_byte(var->buf, extract32(size, 24, 8)); /* bits[31:24] */
return var;
}
/*
* ACPI 5.0: 6.4.3.6 Extended Interrupt Descriptor
* Type 1, Large Item Name 0x9
*/
Aml *aml_interrupt(AmlConsumerAndProducer con_and_pro,
AmlLevelAndEdge level_and_edge,
AmlActiveHighAndLow high_and_low, AmlShared shared,
uint32_t *irq_list, uint8_t irq_count)
{
int i;
Aml *var = aml_alloc();
uint8_t irq_flags = con_and_pro | (level_and_edge << 1)
| (high_and_low << 2) | (shared << 3);
const int header_bytes_in_len = 2;
uint16_t len = header_bytes_in_len + irq_count * sizeof(uint32_t);
assert(irq_count > 0);
build_append_byte(var->buf, 0x89); /* Extended irq descriptor */
build_append_byte(var->buf, len & 0xFF); /* Length, bits[7:0] */
build_append_byte(var->buf, len >> 8); /* Length, bits[15:8] */
build_append_byte(var->buf, irq_flags); /* Interrupt Vector Information. */
build_append_byte(var->buf, irq_count); /* Interrupt table length */
/* Interrupt Number List */
for (i = 0; i < irq_count; i++) {
build_append_int_noprefix(var->buf, irq_list[i], 4);
}
return var;
}
/* ACPI 1.0b: 6.4.2.5 I/O Port Descriptor */
Aml *aml_io(AmlIODecode dec, uint16_t min_base, uint16_t max_base,
uint8_t aln, uint8_t len)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x47); /* IO port descriptor */
build_append_byte(var->buf, dec);
build_append_byte(var->buf, min_base & 0xff);
build_append_byte(var->buf, (min_base >> 8) & 0xff);
build_append_byte(var->buf, max_base & 0xff);
build_append_byte(var->buf, (max_base >> 8) & 0xff);
build_append_byte(var->buf, aln);
build_append_byte(var->buf, len);
return var;
}
/*
* ACPI 1.0b: 6.4.2.1.1 ASL Macro for IRQ Descriptor
*
* More verbose description at:
* ACPI 5.0: 19.5.64 IRQNoFlags (Interrupt Resource Descriptor Macro)
* 6.4.2.1 IRQ Descriptor
*/
Aml *aml_irq_no_flags(uint8_t irq)
{
uint16_t irq_mask;
Aml *var = aml_alloc();
assert(irq < 16);
build_append_byte(var->buf, 0x22); /* IRQ descriptor 2 byte form */
irq_mask = 1U << irq;
build_append_byte(var->buf, irq_mask & 0xFF); /* IRQ mask bits[7:0] */
build_append_byte(var->buf, irq_mask >> 8); /* IRQ mask bits[15:8] */
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLNot */
Aml *aml_lnot(Aml *arg)
{
Aml *var = aml_opcode(0x92 /* LNotOp */);
aml_append(var, arg);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLEqual */
Aml *aml_equal(Aml *arg1, Aml *arg2)
{
Aml *var = aml_opcode(0x93 /* LequalOp */);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreater */
Aml *aml_lgreater(Aml *arg1, Aml *arg2)
{
Aml *var = aml_opcode(0x94 /* LGreaterOp */);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefLGreaterEqual */
Aml *aml_lgreater_equal(Aml *arg1, Aml *arg2)
{
/* LGreaterEqualOp := LNotOp LLessOp */
Aml *var = aml_opcode(0x92 /* LNotOp */);
build_append_byte(var->buf, 0x95 /* LLessOp */);
aml_append(var, arg1);
aml_append(var, arg2);
return var;
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefIfElse */
Aml *aml_if(Aml *predicate)
{
Aml *var = aml_bundle(0xA0 /* IfOp */, AML_PACKAGE);
aml_append(var, predicate);
return var;
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefElse */
Aml *aml_else(void)
{
Aml *var = aml_bundle(0xA1 /* ElseOp */, AML_PACKAGE);
return var;
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefWhile */
Aml *aml_while(Aml *predicate)
{
Aml *var = aml_bundle(0xA2 /* WhileOp */, AML_PACKAGE);
aml_append(var, predicate);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMethod */
Aml *aml_method(const char *name, int arg_count, AmlSerializeFlag sflag)
{
Aml *var = aml_bundle(0x14 /* MethodOp */, AML_PACKAGE);
int methodflags;
/*
* MethodFlags:
* bit 0-2: ArgCount (0-7)
* bit 3: SerializeFlag
* 0: NotSerialized
* 1: Serialized
* bit 4-7: reserved (must be 0)
*/
assert(arg_count < 8);
methodflags = arg_count | (sflag << 3);
build_append_namestring(var->buf, "%s", name);
build_append_byte(var->buf, methodflags); /* MethodFlags: ArgCount */
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefDevice */
Aml *aml_device(const char *name_format, ...)
{
va_list ap;
Aml *var = aml_bundle(0x82 /* DeviceOp */, AML_EXT_PACKAGE);
va_start(ap, name_format);
build_append_namestringv(var->buf, name_format, ap);
va_end(ap);
return var;
}
/* ACPI 1.0b: 6.4.1 ASL Macros for Resource Descriptors */
Aml *aml_resource_template(void)
{
/* ResourceTemplate is a buffer of Resources with EndTag at the end */
Aml *var = aml_bundle(0x11 /* BufferOp */, AML_RES_TEMPLATE);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefBuffer
* Pass byte_list as NULL to request uninitialized buffer to reserve space.
*/
Aml *aml_buffer(int buffer_size, uint8_t *byte_list)
{
int i;
Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER);
for (i = 0; i < buffer_size; i++) {
if (byte_list == NULL) {
build_append_byte(var->buf, 0x0);
} else {
build_append_byte(var->buf, byte_list[i]);
}
}
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefPackage */
Aml *aml_package(uint8_t num_elements)
{
Aml *var = aml_bundle(0x12 /* PackageOp */, AML_PACKAGE);
build_append_byte(var->buf, num_elements);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefOpRegion */
Aml *aml_operation_region(const char *name, AmlRegionSpace rs,
Aml *offset, uint32_t len)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
build_append_byte(var->buf, 0x80); /* OpRegionOp */
build_append_namestring(var->buf, "%s", name);
build_append_byte(var->buf, rs);
aml_append(var, offset);
build_append_int(var->buf, len);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: NamedField */
Aml *aml_named_field(const char *name, unsigned length)
{
Aml *var = aml_alloc();
build_append_nameseg(var->buf, name);
build_append_pkg_length(var->buf, length, false);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: ReservedField */
Aml *aml_reserved_field(unsigned length)
{
Aml *var = aml_alloc();
/* ReservedField := 0x00 PkgLength */
build_append_byte(var->buf, 0x00);
build_append_pkg_length(var->buf, length, false);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefField */
Aml *aml_field(const char *name, AmlAccessType type, AmlLockRule lock,
AmlUpdateRule rule)
{
Aml *var = aml_bundle(0x81 /* FieldOp */, AML_EXT_PACKAGE);
uint8_t flags = rule << 5 | type;
flags |= lock << 4; /* LockRule at 4 bit offset */
build_append_namestring(var->buf, "%s", name);
build_append_byte(var->buf, flags);
return var;
}
static
Aml *create_field_common(int opcode, Aml *srcbuf, Aml *index, const char *name)
{
Aml *var = aml_opcode(opcode);
aml_append(var, srcbuf);
aml_append(var, index);
build_append_namestring(var->buf, "%s", name);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateField */
Aml *aml_create_field(Aml *srcbuf, Aml *bit_index, Aml *num_bits,
const char *name)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
build_append_byte(var->buf, 0x13); /* CreateFieldOp */
aml_append(var, srcbuf);
aml_append(var, bit_index);
aml_append(var, num_bits);
build_append_namestring(var->buf, "%s", name);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefCreateDWordField */
Aml *aml_create_dword_field(Aml *srcbuf, Aml *index, const char *name)
{
return create_field_common(0x8A /* CreateDWordFieldOp */,
srcbuf, index, name);
}
/* ACPI 2.0a: 17.2.4.2 Named Objects Encoding: DefCreateQWordField */
Aml *aml_create_qword_field(Aml *srcbuf, Aml *index, const char *name)
{
return create_field_common(0x8F /* CreateQWordFieldOp */,
srcbuf, index, name);
}
/* ACPI 1.0b: 16.2.3 Data Objects Encoding: String */
Aml *aml_string(const char *name_format, ...)
{
Aml *var = aml_opcode(0x0D /* StringPrefix */);
va_list ap;
char *s;
int len;
va_start(ap, name_format);
len = g_vasprintf(&s, name_format, ap);
va_end(ap);
g_array_append_vals(var->buf, s, len + 1);
g_free(s);
return var;
}
/* ACPI 1.0b: 16.2.6.2 Local Objects Encoding */
Aml *aml_local(int num)
{
uint8_t op = 0x60 /* Local0Op */ + num;
assert(num <= 7);
return aml_opcode(op);
}
/* ACPI 2.0a: 17.2.2 Data Objects Encoding: DefVarPackage */
Aml *aml_varpackage(uint32_t num_elements)
{
Aml *var = aml_bundle(0x13 /* VarPackageOp */, AML_PACKAGE);
build_append_int(var->buf, num_elements);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefProcessor */
Aml *aml_processor(uint8_t proc_id, uint32_t pblk_addr, uint8_t pblk_len,
const char *name_format, ...)
{
va_list ap;
Aml *var = aml_bundle(0x83 /* ProcessorOp */, AML_EXT_PACKAGE);
va_start(ap, name_format);
build_append_namestringv(var->buf, name_format, ap);
va_end(ap);
build_append_byte(var->buf, proc_id); /* ProcID */
build_append_int_noprefix(var->buf, pblk_addr, sizeof(pblk_addr));
build_append_byte(var->buf, pblk_len); /* PblkLen */
return var;
}
static uint8_t Hex2Digit(char c)
{
if (c >= 'A') {
return c - 'A' + 10;
}
return c - '0';
}
/* ACPI 1.0b: 15.2.3.6.4.1 EISAID Macro - Convert EISA ID String To Integer */
Aml *aml_eisaid(const char *str)
{
Aml *var = aml_alloc();
uint32_t id;
g_assert(strlen(str) == 7);
id = (str[0] - 0x40) << 26 |
(str[1] - 0x40) << 21 |
(str[2] - 0x40) << 16 |
Hex2Digit(str[3]) << 12 |
Hex2Digit(str[4]) << 8 |
Hex2Digit(str[5]) << 4 |
Hex2Digit(str[6]);
build_append_byte(var->buf, 0x0C); /* DWordPrefix */
build_append_int_noprefix(var->buf, bswap32(id), sizeof(id));
return var;
}
/* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor: bytes 3-5 */
static Aml *aml_as_desc_header(AmlResourceType type, AmlMinFixed min_fixed,
AmlMaxFixed max_fixed, AmlDecode dec,
uint8_t type_flags)
{
uint8_t flags = max_fixed | min_fixed | dec;
Aml *var = aml_alloc();
build_append_byte(var->buf, type);
build_append_byte(var->buf, flags);
build_append_byte(var->buf, type_flags); /* Type Specific Flags */
return var;
}
/* ACPI 1.0b: 6.4.3.5.5 Word Address Space Descriptor */
static Aml *aml_word_as_desc(AmlResourceType type, AmlMinFixed min_fixed,
AmlMaxFixed max_fixed, AmlDecode dec,
uint16_t addr_gran, uint16_t addr_min,
uint16_t addr_max, uint16_t addr_trans,
uint16_t len, uint8_t type_flags)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x88); /* Word Address Space Descriptor */
/* minimum length since we do not encode optional fields */
build_append_byte(var->buf, 0x0D);
build_append_byte(var->buf, 0x0);
aml_append(var,
aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags));
build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran));
build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min));
build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max));
build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans));
build_append_int_noprefix(var->buf, len, sizeof(len));
return var;
}
/* ACPI 1.0b: 6.4.3.5.3 DWord Address Space Descriptor */
static Aml *aml_dword_as_desc(AmlResourceType type, AmlMinFixed min_fixed,
AmlMaxFixed max_fixed, AmlDecode dec,
uint32_t addr_gran, uint32_t addr_min,
uint32_t addr_max, uint32_t addr_trans,
uint32_t len, uint8_t type_flags)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x87); /* DWord Address Space Descriptor */
/* minimum length since we do not encode optional fields */
build_append_byte(var->buf, 23);
build_append_byte(var->buf, 0x0);
aml_append(var,
aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags));
build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran));
build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min));
build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max));
build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans));
build_append_int_noprefix(var->buf, len, sizeof(len));
return var;
}
/* ACPI 1.0b: 6.4.3.5.1 QWord Address Space Descriptor */
static Aml *aml_qword_as_desc(AmlResourceType type, AmlMinFixed min_fixed,
AmlMaxFixed max_fixed, AmlDecode dec,
uint64_t addr_gran, uint64_t addr_min,
uint64_t addr_max, uint64_t addr_trans,
uint64_t len, uint8_t type_flags)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x8A); /* QWord Address Space Descriptor */
/* minimum length since we do not encode optional fields */
build_append_byte(var->buf, 0x2B);
build_append_byte(var->buf, 0x0);
aml_append(var,
aml_as_desc_header(type, min_fixed, max_fixed, dec, type_flags));
build_append_int_noprefix(var->buf, addr_gran, sizeof(addr_gran));
build_append_int_noprefix(var->buf, addr_min, sizeof(addr_min));
build_append_int_noprefix(var->buf, addr_max, sizeof(addr_max));
build_append_int_noprefix(var->buf, addr_trans, sizeof(addr_trans));
build_append_int_noprefix(var->buf, len, sizeof(len));
return var;
}
/*
* ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
*
* More verbose description at:
* ACPI 5.0: 19.5.141 WordBusNumber (Word Bus Number Resource Descriptor Macro)
*/
Aml *aml_word_bus_number(AmlMinFixed min_fixed, AmlMaxFixed max_fixed,
AmlDecode dec, uint16_t addr_gran,
uint16_t addr_min, uint16_t addr_max,
uint16_t addr_trans, uint16_t len)
{
return aml_word_as_desc(AML_BUS_NUMBER_RANGE, min_fixed, max_fixed, dec,
addr_gran, addr_min, addr_max, addr_trans, len, 0);
}
/*
* ACPI 1.0b: 6.4.3.5.6 ASL Macros for WORD Address Descriptor
*
* More verbose description at:
* ACPI 5.0: 19.5.142 WordIO (Word IO Resource Descriptor Macro)
*/
Aml *aml_word_io(AmlMinFixed min_fixed, AmlMaxFixed max_fixed,
AmlDecode dec, AmlISARanges isa_ranges,
uint16_t addr_gran, uint16_t addr_min,
uint16_t addr_max, uint16_t addr_trans,
uint16_t len)
{
return aml_word_as_desc(AML_IO_RANGE, min_fixed, max_fixed, dec,
addr_gran, addr_min, addr_max, addr_trans, len,
isa_ranges);
}
/*
* ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Descriptor
*
* More verbose description at:
* ACPI 5.0: 19.5.33 DWordIO (DWord IO Resource Descriptor Macro)
*/
Aml *aml_dword_io(AmlMinFixed min_fixed, AmlMaxFixed max_fixed,
AmlDecode dec, AmlISARanges isa_ranges,
uint32_t addr_gran, uint32_t addr_min,
uint32_t addr_max, uint32_t addr_trans,
uint32_t len)
{
return aml_dword_as_desc(AML_IO_RANGE, min_fixed, max_fixed, dec,
addr_gran, addr_min, addr_max, addr_trans, len,
isa_ranges);
}
/*
* ACPI 1.0b: 6.4.3.5.4 ASL Macros for DWORD Address Space Descriptor
*
* More verbose description at:
* ACPI 5.0: 19.5.34 DWordMemory (DWord Memory Resource Descriptor Macro)
*/
Aml *aml_dword_memory(AmlDecode dec, AmlMinFixed min_fixed,
AmlMaxFixed max_fixed, AmlCacheable cacheable,
AmlReadAndWrite read_and_write,
uint32_t addr_gran, uint32_t addr_min,
uint32_t addr_max, uint32_t addr_trans,
uint32_t len)
{
uint8_t flags = read_and_write | (cacheable << 1);
return aml_dword_as_desc(AML_MEMORY_RANGE, min_fixed, max_fixed,
dec, addr_gran, addr_min, addr_max,
addr_trans, len, flags);
}
/*
* ACPI 1.0b: 6.4.3.5.2 ASL Macros for QWORD Address Space Descriptor
*
* More verbose description at:
* ACPI 5.0: 19.5.102 QWordMemory (QWord Memory Resource Descriptor Macro)
*/
Aml *aml_qword_memory(AmlDecode dec, AmlMinFixed min_fixed,
AmlMaxFixed max_fixed, AmlCacheable cacheable,
AmlReadAndWrite read_and_write,
uint64_t addr_gran, uint64_t addr_min,
uint64_t addr_max, uint64_t addr_trans,
uint64_t len)
{
uint8_t flags = read_and_write | (cacheable << 1);
return aml_qword_as_desc(AML_MEMORY_RANGE, min_fixed, max_fixed,
dec, addr_gran, addr_min, addr_max,
addr_trans, len, flags);
}
/* ACPI 1.0b: 6.4.2.2 DMA Format/6.4.2.2.1 ASL Macro for DMA Descriptor */
Aml *aml_dma(AmlDmaType typ, AmlDmaBusMaster bm, AmlTransferSize sz,
uint8_t channel)
{
Aml *var = aml_alloc();
uint8_t flags = sz | bm << 2 | typ << 5;
assert(channel < 8);
build_append_byte(var->buf, 0x2A); /* Byte 0: DMA Descriptor */
build_append_byte(var->buf, 1U << channel); /* Byte 1: _DMA - DmaChannel */
build_append_byte(var->buf, flags); /* Byte 2 */
return var;
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefSleep */
Aml *aml_sleep(uint64_t msec)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
build_append_byte(var->buf, 0x22); /* SleepOp */
aml_append(var, aml_int(msec));
return var;
}
static uint8_t Hex2Byte(const char *src)
{
int hi, lo;
hi = Hex2Digit(src[0]);
assert(hi >= 0);
assert(hi <= 15);
lo = Hex2Digit(src[1]);
assert(lo >= 0);
assert(lo <= 15);
return (hi << 4) | lo;
}
/*
* ACPI 3.0: 17.5.124 ToUUID (Convert String to UUID Macro)
* e.g. UUID: aabbccdd-eeff-gghh-iijj-kkllmmnnoopp
* call aml_touuid("aabbccdd-eeff-gghh-iijj-kkllmmnnoopp");
*/
Aml *aml_touuid(const char *uuid)
{
Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER);
assert(strlen(uuid) == 36);
assert(uuid[8] == '-');
assert(uuid[13] == '-');
assert(uuid[18] == '-');
assert(uuid[23] == '-');
build_append_byte(var->buf, Hex2Byte(uuid + 6)); /* dd - at offset 00 */
build_append_byte(var->buf, Hex2Byte(uuid + 4)); /* cc - at offset 01 */
build_append_byte(var->buf, Hex2Byte(uuid + 2)); /* bb - at offset 02 */
build_append_byte(var->buf, Hex2Byte(uuid + 0)); /* aa - at offset 03 */
build_append_byte(var->buf, Hex2Byte(uuid + 11)); /* ff - at offset 04 */
build_append_byte(var->buf, Hex2Byte(uuid + 9)); /* ee - at offset 05 */
build_append_byte(var->buf, Hex2Byte(uuid + 16)); /* hh - at offset 06 */
build_append_byte(var->buf, Hex2Byte(uuid + 14)); /* gg - at offset 07 */
build_append_byte(var->buf, Hex2Byte(uuid + 19)); /* ii - at offset 08 */
build_append_byte(var->buf, Hex2Byte(uuid + 21)); /* jj - at offset 09 */
build_append_byte(var->buf, Hex2Byte(uuid + 24)); /* kk - at offset 10 */
build_append_byte(var->buf, Hex2Byte(uuid + 26)); /* ll - at offset 11 */
build_append_byte(var->buf, Hex2Byte(uuid + 28)); /* mm - at offset 12 */
build_append_byte(var->buf, Hex2Byte(uuid + 30)); /* nn - at offset 13 */
build_append_byte(var->buf, Hex2Byte(uuid + 32)); /* oo - at offset 14 */
build_append_byte(var->buf, Hex2Byte(uuid + 34)); /* pp - at offset 15 */
return var;
}
/*
* ACPI 2.0b: 16.2.3.6.4.3 Unicode Macro (Convert Ascii String To Unicode)
*/
Aml *aml_unicode(const char *str)
{
int i = 0;
Aml *var = aml_bundle(0x11 /* BufferOp */, AML_BUFFER);
do {
build_append_byte(var->buf, str[i]);
build_append_byte(var->buf, 0);
i++;
} while (i <= strlen(str));
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefRefOf */
Aml *aml_refof(Aml *arg)
{
Aml *var = aml_opcode(0x71 /* RefOfOp */);
aml_append(var, arg);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefDerefOf */
Aml *aml_derefof(Aml *arg)
{
Aml *var = aml_opcode(0x83 /* DerefOfOp */);
aml_append(var, arg);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefSizeOf */
Aml *aml_sizeof(Aml *arg)
{
Aml *var = aml_opcode(0x87 /* SizeOfOp */);
aml_append(var, arg);
return var;
}
/* ACPI 1.0b: 16.2.5.2 Named Objects Encoding: DefMutex */
Aml *aml_mutex(const char *name, uint8_t sync_level)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
build_append_byte(var->buf, 0x01); /* MutexOp */
build_append_namestring(var->buf, "%s", name);
assert(!(sync_level & 0xF0));
build_append_byte(var->buf, sync_level);
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefAcquire */
Aml *aml_acquire(Aml *mutex, uint16_t timeout)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
build_append_byte(var->buf, 0x23); /* AcquireOp */
aml_append(var, mutex);
build_append_int_noprefix(var->buf, timeout, sizeof(timeout));
return var;
}
/* ACPI 1.0b: 16.2.5.3 Type 1 Opcodes Encoding: DefRelease */
Aml *aml_release(Aml *mutex)
{
Aml *var = aml_alloc();
build_append_byte(var->buf, 0x5B); /* ExtOpPrefix */
build_append_byte(var->buf, 0x27); /* ReleaseOp */
aml_append(var, mutex);
return var;
}
/* ACPI 1.0b: 16.2.5.1 Name Space Modifier Objects Encoding: DefAlias */
Aml *aml_alias(const char *source_object, const char *alias_object)
{
Aml *var = aml_opcode(0x06 /* AliasOp */);
aml_append(var, aml_name("%s", source_object));
aml_append(var, aml_name("%s", alias_object));
return var;
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefConcat */
Aml *aml_concatenate(Aml *source1, Aml *source2, Aml *target)
{
return build_opcode_2arg_dst(0x73 /* ConcatOp */, source1, source2,
target);
}
/* ACPI 1.0b: 16.2.5.4 Type 2 Opcodes Encoding: DefObjectType */
Aml *aml_object_type(Aml *object)
{
Aml *var = aml_opcode(0x8E /* ObjectTypeOp */);
aml_append(var, object);
return var;
}
void acpi_table_begin(AcpiTable *desc, GArray *array)
{
desc->array = array;
desc->table_offset = array->len;
/*
* ACPI spec 1.0b
* 5.2.3 System Description Table Header
*/
g_assert(strlen(desc->sig) == 4);
g_array_append_vals(array, desc->sig, 4); /* Signature */
/*
* reserve space for Length field, which will be patched by
* acpi_table_end() when the table creation is finished.
*/
build_append_int_noprefix(array, 0, 4); /* Length */
build_append_int_noprefix(array, desc->rev, 1); /* Revision */
build_append_int_noprefix(array, 0, 1); /* Checksum */
build_append_padded_str(array, desc->oem_id, 6, '\0'); /* OEMID */
/* OEM Table ID */
build_append_padded_str(array, desc->oem_table_id, 8, '\0');
build_append_int_noprefix(array, 1, 4); /* OEM Revision */
g_array_append_vals(array, ACPI_BUILD_APPNAME8, 4); /* Creator ID */
build_append_int_noprefix(array, 1, 4); /* Creator Revision */
}
void acpi_table_end(BIOSLinker *linker, AcpiTable *desc)
{
/*
* ACPI spec 1.0b
* 5.2.3 System Description Table Header
* Table 5-2 DESCRIPTION_HEADER Fields
*/
const unsigned checksum_offset = 9;
uint32_t table_len = desc->array->len - desc->table_offset;
uint32_t table_len_le = cpu_to_le32(table_len);
gchar *len_ptr = &desc->array->data[desc->table_offset + 4];
/* patch "Length" field that has been reserved by acpi_table_begin()
* to the actual length, i.e. accumulated table length from
* acpi_table_begin() till acpi_table_end()
*/
memcpy(len_ptr, &table_len_le, sizeof table_len_le);
bios_linker_loader_add_checksum(linker, ACPI_BUILD_TABLE_FILE,
desc->table_offset, table_len, desc->table_offset + checksum_offset);
}
void *acpi_data_push(GArray *table_data, unsigned size)
{
unsigned off = table_data->len;
g_array_set_size(table_data, off + size);
return table_data->data + off;
}
unsigned acpi_data_len(GArray *table)
{
assert(g_array_get_element_size(table) == 1);
return table->len;
}
void acpi_add_table(GArray *table_offsets, GArray *table_data)
{
uint32_t offset = table_data->len;
g_array_append_val(table_offsets, offset);
}
void acpi_build_tables_init(AcpiBuildTables *tables)
{
tables->rsdp = g_array_new(false, true /* clear */, 1);
tables->table_data = g_array_new(false, true /* clear */, 1);
tables->tcpalog = g_array_new(false, true /* clear */, 1);
tables->vmgenid = g_array_new(false, true /* clear */, 1);
tables->hardware_errors = g_array_new(false, true /* clear */, 1);
tables->linker = bios_linker_loader_init();
}
void acpi_build_tables_cleanup(AcpiBuildTables *tables, bool mfre)
{
bios_linker_loader_cleanup(tables->linker);
g_array_free(tables->rsdp, true);
g_array_free(tables->table_data, true);
g_array_free(tables->tcpalog, mfre);
g_array_free(tables->vmgenid, mfre);
g_array_free(tables->hardware_errors, mfre);
}
/*
* ACPI spec 5.2.5.3 Root System Description Pointer (RSDP).
* (Revision 1.0 or later)
*/
void
build_rsdp(GArray *tbl, BIOSLinker *linker, AcpiRsdpData *rsdp_data)
{
int tbl_off = tbl->len; /* Table offset in the RSDP file */
switch (rsdp_data->revision) {
case 0:
/* With ACPI 1.0, we must have an RSDT pointer */
g_assert(rsdp_data->rsdt_tbl_offset);
break;
case 2:
/* With ACPI 2.0+, we must have an XSDT pointer */
g_assert(rsdp_data->xsdt_tbl_offset);
break;
default:
/* Only revisions 0 (ACPI 1.0) and 2 (ACPI 2.0+) are valid for RSDP */
g_assert_not_reached();
}
bios_linker_loader_alloc(linker, ACPI_BUILD_RSDP_FILE, tbl, 16,
true /* fseg memory */);
g_array_append_vals(tbl, "RSD PTR ", 8); /* Signature */
build_append_int_noprefix(tbl, 0, 1); /* Checksum */
g_array_append_vals(tbl, rsdp_data->oem_id, 6); /* OEMID */
build_append_int_noprefix(tbl, rsdp_data->revision, 1); /* Revision */
build_append_int_noprefix(tbl, 0, 4); /* RsdtAddress */
if (rsdp_data->rsdt_tbl_offset) {
/* RSDT address to be filled by guest linker */
bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE,
tbl_off + 16, 4,
ACPI_BUILD_TABLE_FILE,
*rsdp_data->rsdt_tbl_offset);
}
/* Checksum to be filled by guest linker */
bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE,
tbl_off, 20, /* ACPI rev 1.0 RSDP size */
8);
if (rsdp_data->revision == 0) {
/* ACPI 1.0 RSDP, we're done */
return;
}
build_append_int_noprefix(tbl, 36, 4); /* Length */
/* XSDT address to be filled by guest linker */
build_append_int_noprefix(tbl, 0, 8); /* XsdtAddress */
/* We already validated our xsdt pointer */
bios_linker_loader_add_pointer(linker, ACPI_BUILD_RSDP_FILE,
tbl_off + 24, 8,
ACPI_BUILD_TABLE_FILE,
*rsdp_data->xsdt_tbl_offset);
build_append_int_noprefix(tbl, 0, 1); /* Extended Checksum */
build_append_int_noprefix(tbl, 0, 3); /* Reserved */
/* Extended checksum to be filled by Guest linker */
bios_linker_loader_add_checksum(linker, ACPI_BUILD_RSDP_FILE,
tbl_off, 36, /* ACPI rev 2.0 RSDP size */
32);
}
/*
* ACPI 1.0 Root System Description Table (RSDT)
*/
void
build_rsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
const char *oem_id, const char *oem_table_id)
{
int i;
AcpiTable table = { .sig = "RSDT", .rev = 1,
.oem_id = oem_id, .oem_table_id = oem_table_id };
acpi_table_begin(&table, table_data);
for (i = 0; i < table_offsets->len; ++i) {
uint32_t ref_tbl_offset = g_array_index(table_offsets, uint32_t, i);
uint32_t rsdt_entry_offset = table.array->len;
/* reserve space for entry */
build_append_int_noprefix(table.array, 0, 4);
/* mark position of RSDT entry to be filled by Guest linker */
bios_linker_loader_add_pointer(linker,
ACPI_BUILD_TABLE_FILE, rsdt_entry_offset, 4,
ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
}
acpi_table_end(linker, &table);
}
/*
* ACPI 2.0 eXtended System Description Table (XSDT)
*/
void
build_xsdt(GArray *table_data, BIOSLinker *linker, GArray *table_offsets,
const char *oem_id, const char *oem_table_id)
{
int i;
AcpiTable table = { .sig = "XSDT", .rev = 1,
.oem_id = oem_id, .oem_table_id = oem_table_id };
acpi_table_begin(&table, table_data);
for (i = 0; i < table_offsets->len; ++i) {
uint64_t ref_tbl_offset = g_array_index(table_offsets, uint32_t, i);
uint64_t xsdt_entry_offset = table.array->len;
/* reserve space for entry */
build_append_int_noprefix(table.array, 0, 8);
/* mark position of RSDT entry to be filled by Guest linker */
bios_linker_loader_add_pointer(linker,
ACPI_BUILD_TABLE_FILE, xsdt_entry_offset, 8,
ACPI_BUILD_TABLE_FILE, ref_tbl_offset);
}
acpi_table_end(linker, &table);
}
/*
* ACPI spec, Revision 4.0
* 5.2.16.2 Memory Affinity Structure
*/
void build_srat_memory(GArray *table_data, uint64_t base,
uint64_t len, int node, MemoryAffinityFlags flags)
{
build_append_int_noprefix(table_data, 1, 1); /* Type */
build_append_int_noprefix(table_data, 40, 1); /* Length */
build_append_int_noprefix(table_data, node, 4); /* Proximity Domain */
build_append_int_noprefix(table_data, 0, 2); /* Reserved */
build_append_int_noprefix(table_data, base, 4); /* Base Address Low */
/* Base Address High */
build_append_int_noprefix(table_data, base >> 32, 4);
build_append_int_noprefix(table_data, len, 4); /* Length Low */
build_append_int_noprefix(table_data, len >> 32, 4); /* Length High */
build_append_int_noprefix(table_data, 0, 4); /* Reserved */
build_append_int_noprefix(table_data, flags, 4); /* Flags */
build_append_int_noprefix(table_data, 0, 8); /* Reserved */
}
/*
* ACPI spec 5.2.17 System Locality Distance Information Table
* (Revision 2.0 or later)
*/
void build_slit(GArray *table_data, BIOSLinker *linker, MachineState *ms,
const char *oem_id, const char *oem_table_id)
{
int i, j;
int nb_numa_nodes = ms->numa_state->num_nodes;
AcpiTable table = { .sig = "SLIT", .rev = 1,
.oem_id = oem_id, .oem_table_id = oem_table_id };
acpi_table_begin(&table, table_data);
build_append_int_noprefix(table_data, nb_numa_nodes, 8);
for (i = 0; i < nb_numa_nodes; i++) {
for (j = 0; j < nb_numa_nodes; j++) {
assert(ms->numa_state->nodes[i].distance[j]);
build_append_int_noprefix(table_data,
ms->numa_state->nodes[i].distance[j],
1);
}
}
acpi_table_end(linker, &table);
}
/*
* ACPI spec, Revision 6.3
* 5.2.29.1 Processor hierarchy node structure (Type 0)
*/
static void build_processor_hierarchy_node(GArray *tbl, uint32_t flags,
uint32_t parent, uint32_t id,
uint32_t *priv_rsrc,
uint32_t priv_num)
{
int i;
build_append_byte(tbl, 0); /* Type 0 - processor */
build_append_byte(tbl, 20 + priv_num * 4); /* Length */
build_append_int_noprefix(tbl, 0, 2); /* Reserved */
build_append_int_noprefix(tbl, flags, 4); /* Flags */
build_append_int_noprefix(tbl, parent, 4); /* Parent */
build_append_int_noprefix(tbl, id, 4); /* ACPI Processor ID */
/* Number of private resources */
build_append_int_noprefix(tbl, priv_num, 4);
/* Private resources[N] */
if (priv_num > 0) {
assert(priv_rsrc);
for (i = 0; i < priv_num; i++) {
build_append_int_noprefix(tbl, priv_rsrc[i], 4);
}
}
}
/*
* ACPI spec, Revision 6.3
* 5.2.29 Processor Properties Topology Table (PPTT)
*/
void build_pptt(GArray *table_data, BIOSLinker *linker, MachineState *ms,
const char *oem_id, const char *oem_table_id)
{
MachineClass *mc = MACHINE_GET_CLASS(ms);
CPUArchIdList *cpus = ms->possible_cpus;
int64_t socket_id = -1, cluster_id = -1, core_id = -1;
uint32_t socket_offset = 0, cluster_offset = 0, core_offset = 0;
uint32_t pptt_start = table_data->len;
int n;
AcpiTable table = { .sig = "PPTT", .rev = 2,
.oem_id = oem_id, .oem_table_id = oem_table_id };
acpi_table_begin(&table, table_data);
/*
* This works with the assumption that cpus[n].props.*_id has been
* sorted from top to down levels in mc->possible_cpu_arch_ids().
* Otherwise, the unexpected and duplicated containers will be
* created.
*/
for (n = 0; n < cpus->len; n++) {
if (cpus->cpus[n].props.socket_id != socket_id) {
assert(cpus->cpus[n].props.socket_id > socket_id);
socket_id = cpus->cpus[n].props.socket_id;
cluster_id = -1;
core_id = -1;
socket_offset = table_data->len - pptt_start;
build_processor_hierarchy_node(table_data,
(1 << 0), /* Physical package */
0, socket_id, NULL, 0);
}
if (mc->smp_props.clusters_supported) {
if (cpus->cpus[n].props.cluster_id != cluster_id) {
assert(cpus->cpus[n].props.cluster_id > cluster_id);
cluster_id = cpus->cpus[n].props.cluster_id;
core_id = -1;
cluster_offset = table_data->len - pptt_start;
build_processor_hierarchy_node(table_data,
(0 << 0), /* Not a physical package */
socket_offset, cluster_id, NULL, 0);
}
} else {
cluster_offset = socket_offset;
}
if (ms->smp.threads == 1) {
build_processor_hierarchy_node(table_data,
(1 << 1) | /* ACPI Processor ID valid */
(1 << 3), /* Node is a Leaf */
cluster_offset, n, NULL, 0);
} else {
if (cpus->cpus[n].props.core_id != core_id) {
assert(cpus->cpus[n].props.core_id > core_id);
core_id = cpus->cpus[n].props.core_id;
core_offset = table_data->len - pptt_start;
build_processor_hierarchy_node(table_data,
(0 << 0), /* Not a physical package */
cluster_offset, core_id, NULL, 0);
}
build_processor_hierarchy_node(table_data,
(1 << 1) | /* ACPI Processor ID valid */
(1 << 2) | /* Processor is a Thread */
(1 << 3), /* Node is a Leaf */
core_offset, n, NULL, 0);
}
}
acpi_table_end(linker, &table);
}
/* build rev1/rev3/rev5.1/rev6.0 FADT */
void build_fadt(GArray *tbl, BIOSLinker *linker, const AcpiFadtData *f,
const char *oem_id, const char *oem_table_id)
{
int off;
AcpiTable table = { .sig = "FACP", .rev = f->rev,
.oem_id = oem_id, .oem_table_id = oem_table_id };
acpi_table_begin(&table, tbl);
/* FACS address to be filled by Guest linker at runtime */
off = tbl->len;
build_append_int_noprefix(tbl, 0, 4); /* FIRMWARE_CTRL */
if (f->facs_tbl_offset) { /* don't patch if not supported by platform */
bios_linker_loader_add_pointer(linker,
ACPI_BUILD_TABLE_FILE, off, 4,
ACPI_BUILD_TABLE_FILE, *f->facs_tbl_offset);
}
/* DSDT address to be filled by Guest linker at runtime */
off = tbl->len;
build_append_int_noprefix(tbl, 0, 4); /* DSDT */
if (f->dsdt_tbl_offset) { /* don't patch if not supported by platform */
bios_linker_loader_add_pointer(linker,
ACPI_BUILD_TABLE_FILE, off, 4,
ACPI_BUILD_TABLE_FILE, *f->dsdt_tbl_offset);
}
/* ACPI1.0: INT_MODEL, ACPI2.0+: Reserved */
build_append_int_noprefix(tbl, f->int_model /* Multiple APIC */, 1);
/* Preferred_PM_Profile */
build_append_int_noprefix(tbl, 0 /* Unspecified */, 1);
build_append_int_noprefix(tbl, f->sci_int, 2); /* SCI_INT */
build_append_int_noprefix(tbl, f->smi_cmd, 4); /* SMI_CMD */
build_append_int_noprefix(tbl, f->acpi_enable_cmd, 1); /* ACPI_ENABLE */
build_append_int_noprefix(tbl, f->acpi_disable_cmd, 1); /* ACPI_DISABLE */
build_append_int_noprefix(tbl, 0 /* not supported */, 1); /* S4BIOS_REQ */
/* ACPI1.0: Reserved, ACPI2.0+: PSTATE_CNT */
build_append_int_noprefix(tbl, 0, 1);
build_append_int_noprefix(tbl, f->pm1a_evt.address, 4); /* PM1a_EVT_BLK */
build_append_int_noprefix(tbl, 0, 4); /* PM1b_EVT_BLK */
build_append_int_noprefix(tbl, f->pm1a_cnt.address, 4); /* PM1a_CNT_BLK */
build_append_int_noprefix(tbl, 0, 4); /* PM1b_CNT_BLK */
build_append_int_noprefix(tbl, 0, 4); /* PM2_CNT_BLK */
build_append_int_noprefix(tbl, f->pm_tmr.address, 4); /* PM_TMR_BLK */
build_append_int_noprefix(tbl, f->gpe0_blk.address, 4); /* GPE0_BLK */
build_append_int_noprefix(tbl, 0, 4); /* GPE1_BLK */
/* PM1_EVT_LEN */
build_append_int_noprefix(tbl, f->pm1a_evt.bit_width / 8, 1);
/* PM1_CNT_LEN */
build_append_int_noprefix(tbl, f->pm1a_cnt.bit_width / 8, 1);
build_append_int_noprefix(tbl, 0, 1); /* PM2_CNT_LEN */
build_append_int_noprefix(tbl, f->pm_tmr.bit_width / 8, 1); /* PM_TMR_LEN */
/* GPE0_BLK_LEN */
build_append_int_noprefix(tbl, f->gpe0_blk.bit_width / 8, 1);
build_append_int_noprefix(tbl, 0, 1); /* GPE1_BLK_LEN */
build_append_int_noprefix(tbl, 0, 1); /* GPE1_BASE */
build_append_int_noprefix(tbl, 0, 1); /* CST_CNT */
build_append_int_noprefix(tbl, f->plvl2_lat, 2); /* P_LVL2_LAT */
build_append_int_noprefix(tbl, f->plvl3_lat, 2); /* P_LVL3_LAT */
build_append_int_noprefix(tbl, 0, 2); /* FLUSH_SIZE */
build_append_int_noprefix(tbl, 0, 2); /* FLUSH_STRIDE */
build_append_int_noprefix(tbl, 0, 1); /* DUTY_OFFSET */
build_append_int_noprefix(tbl, 0, 1); /* DUTY_WIDTH */
build_append_int_noprefix(tbl, 0, 1); /* DAY_ALRM */
build_append_int_noprefix(tbl, 0, 1); /* MON_ALRM */
build_append_int_noprefix(tbl, f->rtc_century, 1); /* CENTURY */
/* IAPC_BOOT_ARCH */
if (f->rev == 1) {
build_append_int_noprefix(tbl, 0, 2);
} else {
/* since ACPI v2.0 */
build_append_int_noprefix(tbl, f->iapc_boot_arch, 2);
}
build_append_int_noprefix(tbl, 0, 1); /* Reserved */
build_append_int_noprefix(tbl, f->flags, 4); /* Flags */
if (f->rev == 1) {
goto done;
}
build_append_gas_from_struct(tbl, &f->reset_reg); /* RESET_REG */
build_append_int_noprefix(tbl, f->reset_val, 1); /* RESET_VALUE */
/* Since ACPI 5.1 */
if ((f->rev >= 6) || ((f->rev == 5) && f->minor_ver > 0)) {
build_append_int_noprefix(tbl, f->arm_boot_arch, 2); /* ARM_BOOT_ARCH */
/* FADT Minor Version */
build_append_int_noprefix(tbl, f->minor_ver, 1);
} else {
build_append_int_noprefix(tbl, 0, 3); /* Reserved upto ACPI 5.0 */
}
build_append_int_noprefix(tbl, 0, 8); /* X_FIRMWARE_CTRL */
/* XDSDT address to be filled by Guest linker at runtime */
off = tbl->len;
build_append_int_noprefix(tbl, 0, 8); /* X_DSDT */
if (f->xdsdt_tbl_offset) {
bios_linker_loader_add_pointer(linker,
ACPI_BUILD_TABLE_FILE, off, 8,
ACPI_BUILD_TABLE_FILE, *f->xdsdt_tbl_offset);
}
build_append_gas_from_struct(tbl, &f->pm1a_evt); /* X_PM1a_EVT_BLK */
/* X_PM1b_EVT_BLK */
build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0);
build_append_gas_from_struct(tbl, &f->pm1a_cnt); /* X_PM1a_CNT_BLK */
/* X_PM1b_CNT_BLK */
build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0);
/* X_PM2_CNT_BLK */
build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0);
build_append_gas_from_struct(tbl, &f->pm_tmr); /* X_PM_TMR_BLK */
build_append_gas_from_struct(tbl, &f->gpe0_blk); /* X_GPE0_BLK */
build_append_gas(tbl, AML_AS_SYSTEM_MEMORY, 0 , 0, 0, 0); /* X_GPE1_BLK */
if (f->rev <= 4) {
goto done;
}
/* SLEEP_CONTROL_REG */
build_append_gas_from_struct(tbl, &f->sleep_ctl);
/* SLEEP_STATUS_REG */
build_append_gas_from_struct(tbl, &f->sleep_sts);
if (f->rev == 5) {
goto done;
}
/* Hypervisor Vendor Identity */
build_append_padded_str(tbl, "QEMU", 8, '\0');
/* TODO: extra fields need to be added to support revisions above rev6 */
assert(f->rev == 6);
done:
acpi_table_end(linker, &table);
}
#ifdef CONFIG_TPM
/*
* build_tpm2 - Build the TPM2 table as specified in
* table 7: TCG Hardware Interface Description Table Format for TPM 2.0
* of TCG ACPI Specification, Family “1.2” and “2.0”, Version 1.2, Rev 8
*/
void build_tpm2(GArray *table_data, BIOSLinker *linker, GArray *tcpalog,
const char *oem_id, const char *oem_table_id)
{
uint8_t start_method_params[12] = {};
unsigned log_addr_offset;
uint64_t control_area_start_address;
TPMIf *tpmif = tpm_find();
uint32_t start_method;
AcpiTable table = { .sig = "TPM2", .rev = 4,
.oem_id = oem_id, .oem_table_id = oem_table_id };
acpi_table_begin(&table, table_data);
/* Platform Class */
build_append_int_noprefix(table_data, TPM2_ACPI_CLASS_CLIENT, 2);
/* Reserved */
build_append_int_noprefix(table_data, 0, 2);
if (TPM_IS_TIS_ISA(tpmif) || TPM_IS_TIS_SYSBUS(tpmif)) {
control_area_start_address = 0;
start_method = TPM2_START_METHOD_MMIO;
} else if (TPM_IS_CRB(tpmif)) {
control_area_start_address = TPM_CRB_ADDR_CTRL;
start_method = TPM2_START_METHOD_CRB;
} else {
g_assert_not_reached();
}
/* Address of Control Area */
build_append_int_noprefix(table_data, control_area_start_address, 8);
/* Start Method */
build_append_int_noprefix(table_data, start_method, 4);
/* Platform Specific Parameters */
g_array_append_vals(table_data, &start_method_params,
ARRAY_SIZE(start_method_params));
/* Log Area Minimum Length */
build_append_int_noprefix(table_data, TPM_LOG_AREA_MINIMUM_SIZE, 4);
acpi_data_push(tcpalog, TPM_LOG_AREA_MINIMUM_SIZE);
bios_linker_loader_alloc(linker, ACPI_BUILD_TPMLOG_FILE, tcpalog, 1,
false);
log_addr_offset = table_data->len;
/* Log Area Start Address to be filled by Guest linker */
build_append_int_noprefix(table_data, 0, 8);
bios_linker_loader_add_pointer(linker, ACPI_BUILD_TABLE_FILE,
log_addr_offset, 8,
ACPI_BUILD_TPMLOG_FILE, 0);
acpi_table_end(linker, &table);
}
#endif
Aml *build_crs(PCIHostState *host, CrsRangeSet *range_set, uint32_t io_offset,
uint32_t mmio32_offset, uint64_t mmio64_offset,
uint16_t bus_nr_offset)
{
Aml *crs = aml_resource_template();
CrsRangeSet temp_range_set;
CrsRangeEntry *entry;
uint8_t max_bus = pci_bus_num(host->bus);
uint8_t type;
int devfn;
int i;
crs_range_set_init(&temp_range_set);
for (devfn = 0; devfn < ARRAY_SIZE(host->bus->devices); devfn++) {
uint64_t range_base, range_limit;
PCIDevice *dev = host->bus->devices[devfn];
if (!dev) {
continue;
}
for (i = 0; i < PCI_NUM_REGIONS; i++) {
PCIIORegion *r = &dev->io_regions[i];
range_base = r->addr;
range_limit = r->addr + r->size - 1;
/*
* Work-around for old bioses
* that do not support multiple root buses
*/
if (!range_base || range_base > range_limit) {
continue;
}
if (r->type & PCI_BASE_ADDRESS_SPACE_IO) {
crs_range_insert(temp_range_set.io_ranges,
range_base, range_limit);
} else { /* "memory" */
uint64_t length = range_limit - range_base + 1;
if (range_limit <= UINT32_MAX && length <= UINT32_MAX) {
crs_range_insert(temp_range_set.mem_ranges, range_base,
range_limit);
} else {
crs_range_insert(temp_range_set.mem_64bit_ranges,
range_base, range_limit);
}
}
}
type = dev->config[PCI_HEADER_TYPE] & ~PCI_HEADER_TYPE_MULTI_FUNCTION;
if (type == PCI_HEADER_TYPE_BRIDGE) {
uint8_t subordinate = dev->config[PCI_SUBORDINATE_BUS];
if (subordinate > max_bus) {
max_bus = subordinate;
}
range_base = pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_IO);
range_limit = pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_IO);
/*
* Work-around for old bioses
* that do not support multiple root buses
*/
if (range_base && range_base <= range_limit) {
crs_range_insert(temp_range_set.io_ranges,
range_base, range_limit);
}
range_base =
pci_bridge_get_base(dev, PCI_BASE_ADDRESS_SPACE_MEMORY);
range_limit =
pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_SPACE_MEMORY);
/*
* Work-around for old bioses
* that do not support multiple root buses
*/
if (range_base && range_base <= range_limit) {
uint64_t length = range_limit - range_base + 1;
if (range_limit <= UINT32_MAX && length <= UINT32_MAX) {
crs_range_insert(temp_range_set.mem_ranges,
range_base, range_limit);
} else {
crs_range_insert(temp_range_set.mem_64bit_ranges,
range_base, range_limit);
}
}
range_base =
pci_bridge_get_base(dev, PCI_BASE_ADDRESS_MEM_PREFETCH);
range_limit =
pci_bridge_get_limit(dev, PCI_BASE_ADDRESS_MEM_PREFETCH);
/*
* Work-around for old bioses
* that do not support multiple root buses
*/
if (range_base && range_base <= range_limit) {
uint64_t length = range_limit - range_base + 1;
if (range_limit <= UINT32_MAX && length <= UINT32_MAX) {
crs_range_insert(temp_range_set.mem_ranges,
range_base, range_limit);
} else {
crs_range_insert(temp_range_set.mem_64bit_ranges,
range_base, range_limit);
}
}
}
}
crs_range_merge(temp_range_set.io_ranges);
for (i = 0; i < temp_range_set.io_ranges->len; i++) {
entry = g_ptr_array_index(temp_range_set.io_ranges, i);
aml_append(crs,
aml_dword_io(AML_MIN_FIXED, AML_MAX_FIXED,
AML_POS_DECODE, AML_ENTIRE_RANGE,
0, entry->base, entry->limit, io_offset,
entry->limit - entry->base + 1));
crs_range_insert(range_set->io_ranges, entry->base, entry->limit);
}
crs_range_merge(temp_range_set.mem_ranges);
for (i = 0; i < temp_range_set.mem_ranges->len; i++) {
entry = g_ptr_array_index(temp_range_set.mem_ranges, i);
assert(entry->limit <= UINT32_MAX &&
(entry->limit - entry->base + 1) <= UINT32_MAX);
aml_append(crs,
aml_dword_memory(AML_POS_DECODE, AML_MIN_FIXED,
AML_MAX_FIXED, AML_NON_CACHEABLE,
AML_READ_WRITE,
0, entry->base, entry->limit, mmio32_offset,
entry->limit - entry->base + 1));
crs_range_insert(range_set->mem_ranges, entry->base, entry->limit);
}
crs_range_merge(temp_range_set.mem_64bit_ranges);
for (i = 0; i < temp_range_set.mem_64bit_ranges->len; i++) {
entry = g_ptr_array_index(temp_range_set.mem_64bit_ranges, i);
aml_append(crs,
aml_qword_memory(AML_POS_DECODE, AML_MIN_FIXED,
AML_MAX_FIXED, AML_NON_CACHEABLE,
AML_READ_WRITE,
0, entry->base, entry->limit, mmio64_offset,
entry->limit - entry->base + 1));
crs_range_insert(range_set->mem_64bit_ranges,
entry->base, entry->limit);
}
crs_range_set_free(&temp_range_set);
aml_append(crs,
aml_word_bus_number(AML_MIN_FIXED, AML_MAX_FIXED, AML_POS_DECODE,
0,
pci_bus_num(host->bus),
max_bus,
bus_nr_offset,
max_bus - pci_bus_num(host->bus) + 1));
return crs;
}
/* ACPI 5.0: 6.4.3.8.2 Serial Bus Connection Descriptors */
static Aml *aml_serial_bus_device(uint8_t serial_bus_type, uint8_t flags,
uint16_t type_flags,
uint8_t revid, uint16_t data_length,
uint16_t resource_source_len)
{
Aml *var = aml_alloc();
uint16_t length = data_length + resource_source_len + 9;
build_append_byte(var->buf, 0x8e); /* Serial Bus Connection Descriptor */
build_append_int_noprefix(var->buf, length, sizeof(length));
build_append_byte(var->buf, 1); /* Revision ID */
build_append_byte(var->buf, 0); /* Resource Source Index */
build_append_byte(var->buf, serial_bus_type); /* Serial Bus Type */
build_append_byte(var->buf, flags); /* General Flags */
build_append_int_noprefix(var->buf, type_flags, /* Type Specific Flags */
sizeof(type_flags));
build_append_byte(var->buf, revid); /* Type Specification Revision ID */
build_append_int_noprefix(var->buf, data_length, sizeof(data_length));
return var;
}
/* ACPI 5.0: 6.4.3.8.2.1 I2C Serial Bus Connection Resource Descriptor */
Aml *aml_i2c_serial_bus_device(uint16_t address, const char *resource_source)
{
uint16_t resource_source_len = strlen(resource_source) + 1;
Aml *var = aml_serial_bus_device(AML_SERIAL_BUS_TYPE_I2C, 0, 0, 1,
6, resource_source_len);
/* Connection Speed. Just set to 100K for now, it doesn't really matter. */
build_append_int_noprefix(var->buf, 100000, 4);
build_append_int_noprefix(var->buf, address, sizeof(address));
/* This is a string, not a name, so just copy it directly in. */
g_array_append_vals(var->buf, resource_source, resource_source_len);
return var;
}
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