mirror of
https://github.com/qemu/qemu.git
synced 2024-11-25 03:43:37 +08:00
1c87d68c91
Add a 16-bytes buffer to allow storing a 128-bit UUID value in an ACPI table. Signed-off-by: Gal Hammer <ghammer@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
368 lines
13 KiB
Python
Executable File
368 lines
13 KiB
Python
Executable File
#!/usr/bin/python
|
|
# Copyright (C) 2011 Red Hat, Inc., Michael S. Tsirkin <mst@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/>.
|
|
|
|
# Process mixed ASL/AML listing (.lst file) produced by iasl -l
|
|
# Locate and execute ACPI_EXTRACT directives, output offset info
|
|
#
|
|
# Documentation of ACPI_EXTRACT_* directive tags:
|
|
#
|
|
# These directive tags output offset information from AML for BIOS runtime
|
|
# table generation.
|
|
# Each directive is of the form:
|
|
# ACPI_EXTRACT_<TYPE> <array_name> <Operator> (...)
|
|
# and causes the extractor to create an array
|
|
# named <array_name> with offset, in the generated AML,
|
|
# of an object of a given type in the following <Operator>.
|
|
#
|
|
# A directive must fit on a single code line.
|
|
#
|
|
# Object type in AML is verified, a mismatch causes a build failure.
|
|
#
|
|
# Directives and operators currently supported are:
|
|
# ACPI_EXTRACT_NAME_DWORD_CONST - extract a Dword Const object from Name()
|
|
# ACPI_EXTRACT_NAME_WORD_CONST - extract a Word Const object from Name()
|
|
# ACPI_EXTRACT_NAME_BYTE_CONST - extract a Byte Const object from Name()
|
|
# ACPI_EXTRACT_METHOD_STRING - extract a NameString from Method()
|
|
# ACPI_EXTRACT_NAME_STRING - extract a NameString from Name()
|
|
# ACPI_EXTRACT_PROCESSOR_START - start of Processor() block
|
|
# ACPI_EXTRACT_PROCESSOR_STRING - extract a NameString from Processor()
|
|
# ACPI_EXTRACT_PROCESSOR_END - offset at last byte of Processor() + 1
|
|
# ACPI_EXTRACT_PKG_START - start of Package block
|
|
#
|
|
# ACPI_EXTRACT_ALL_CODE - create an array storing the generated AML bytecode
|
|
#
|
|
# ACPI_EXTRACT is not allowed anywhere else in code, except in comments.
|
|
|
|
import re;
|
|
import sys;
|
|
import fileinput;
|
|
|
|
aml = []
|
|
asl = []
|
|
output = {}
|
|
debug = ""
|
|
|
|
class asl_line:
|
|
line = None
|
|
lineno = None
|
|
aml_offset = None
|
|
|
|
def die(diag):
|
|
sys.stderr.write("Error: %s; %s\n" % (diag, debug))
|
|
sys.exit(1)
|
|
|
|
#Store an ASL command, matching AML offset, and input line (for debugging)
|
|
def add_asl(lineno, line):
|
|
l = asl_line()
|
|
l.line = line
|
|
l.lineno = lineno
|
|
l.aml_offset = len(aml)
|
|
asl.append(l)
|
|
|
|
#Store an AML byte sequence
|
|
#Verify that offset output by iasl matches # of bytes so far
|
|
def add_aml(offset, line):
|
|
o = int(offset, 16);
|
|
# Sanity check: offset must match size of code so far
|
|
if (o != len(aml)):
|
|
die("Offset 0x%x != 0x%x" % (o, len(aml)))
|
|
# Strip any trailing dots and ASCII dump after "
|
|
line = re.sub(r'\s*\.*\s*".*$',"", line)
|
|
# Strip traling whitespace
|
|
line = re.sub(r'\s+$',"", line)
|
|
# Strip leading whitespace
|
|
line = re.sub(r'^\s+',"", line)
|
|
# Split on whitespace
|
|
code = re.split(r'\s+', line)
|
|
for c in code:
|
|
# Require a legal hex number, two digits
|
|
if (not(re.search(r'^[0-9A-Fa-f][0-9A-Fa-f]$', c))):
|
|
die("Unexpected octet %s" % c);
|
|
aml.append(int(c, 16));
|
|
|
|
# Process aml bytecode array, decoding AML
|
|
def aml_pkglen_bytes(offset):
|
|
# PkgLength can be multibyte. Bits 8-7 give the # of extra bytes.
|
|
pkglenbytes = aml[offset] >> 6;
|
|
return pkglenbytes + 1
|
|
|
|
def aml_pkglen(offset):
|
|
pkgstart = offset
|
|
pkglenbytes = aml_pkglen_bytes(offset)
|
|
pkglen = aml[offset] & 0x3F
|
|
# If multibyte, first nibble only uses bits 0-3
|
|
if ((pkglenbytes > 1) and (pkglen & 0x30)):
|
|
die("PkgLen bytes 0x%x but first nibble 0x%x expected 0x0X" %
|
|
(pkglen, pkglen))
|
|
offset += 1
|
|
pkglenbytes -= 1
|
|
for i in range(pkglenbytes):
|
|
pkglen |= aml[offset + i] << (i * 8 + 4)
|
|
if (len(aml) < pkgstart + pkglen):
|
|
die("PckgLen 0x%x at offset 0x%x exceeds AML size 0x%x" %
|
|
(pkglen, offset, len(aml)))
|
|
return pkglen
|
|
|
|
# Given method offset, find its NameString offset
|
|
def aml_method_string(offset):
|
|
#0x14 MethodOp PkgLength NameString MethodFlags TermList
|
|
if (aml[offset] != 0x14):
|
|
die( "Method offset 0x%x: expected 0x14 actual 0x%x" %
|
|
(offset, aml[offset]));
|
|
offset += 1;
|
|
pkglenbytes = aml_pkglen_bytes(offset)
|
|
offset += pkglenbytes;
|
|
return offset;
|
|
|
|
# Given name offset, find its NameString offset
|
|
def aml_name_string(offset):
|
|
#0x08 NameOp NameString DataRef
|
|
if (aml[offset] != 0x08):
|
|
die( "Name offset 0x%x: expected 0x08 actual 0x%x" %
|
|
(offset, aml[offset]));
|
|
offset += 1
|
|
# Block Name Modifier. Skip it.
|
|
if (aml[offset] == 0x5c or aml[offset] == 0x5e):
|
|
offset += 1
|
|
return offset;
|
|
|
|
# Given data offset, find variable length byte buffer offset
|
|
def aml_data_buffer(offset, length):
|
|
#0x11 PkgLength BufferSize ByteList
|
|
if (length > 63):
|
|
die( "Name offset 0x%x: expected a one byte PkgLength (length<=63)" %
|
|
(offset));
|
|
expect = [0x11, length+3, 0x0A, length]
|
|
if (aml[offset:offset+4] != expect):
|
|
die( "Name offset 0x%x: expected %s actual %s" %
|
|
(offset, expect, aml[offset:offset+4]))
|
|
return offset + len(expect)
|
|
|
|
# Given data offset, find dword const offset
|
|
def aml_data_dword_const(offset):
|
|
#0x08 NameOp NameString DataRef
|
|
if (aml[offset] != 0x0C):
|
|
die( "Name offset 0x%x: expected 0x0C actual 0x%x" %
|
|
(offset, aml[offset]));
|
|
return offset + 1;
|
|
|
|
# Given data offset, find word const offset
|
|
def aml_data_word_const(offset):
|
|
#0x08 NameOp NameString DataRef
|
|
if (aml[offset] != 0x0B):
|
|
die( "Name offset 0x%x: expected 0x0B actual 0x%x" %
|
|
(offset, aml[offset]));
|
|
return offset + 1;
|
|
|
|
# Given data offset, find byte const offset
|
|
def aml_data_byte_const(offset):
|
|
#0x08 NameOp NameString DataRef
|
|
if (aml[offset] != 0x0A):
|
|
die( "Name offset 0x%x: expected 0x0A actual 0x%x" %
|
|
(offset, aml[offset]));
|
|
return offset + 1;
|
|
|
|
# Find name'd buffer
|
|
def aml_name_buffer(offset, length):
|
|
return aml_data_buffer(aml_name_string(offset) + 4, length)
|
|
|
|
# Given name offset, find dword const offset
|
|
def aml_name_dword_const(offset):
|
|
return aml_data_dword_const(aml_name_string(offset) + 4)
|
|
|
|
# Given name offset, find word const offset
|
|
def aml_name_word_const(offset):
|
|
return aml_data_word_const(aml_name_string(offset) + 4)
|
|
|
|
# Given name offset, find byte const offset
|
|
def aml_name_byte_const(offset):
|
|
return aml_data_byte_const(aml_name_string(offset) + 4)
|
|
|
|
def aml_device_start(offset):
|
|
#0x5B 0x82 DeviceOp PkgLength NameString
|
|
if ((aml[offset] != 0x5B) or (aml[offset + 1] != 0x82)):
|
|
die( "Name offset 0x%x: expected 0x5B 0x82 actual 0x%x 0x%x" %
|
|
(offset, aml[offset], aml[offset + 1]));
|
|
return offset
|
|
|
|
def aml_device_string(offset):
|
|
#0x5B 0x82 DeviceOp PkgLength NameString
|
|
start = aml_device_start(offset)
|
|
offset += 2
|
|
pkglenbytes = aml_pkglen_bytes(offset)
|
|
offset += pkglenbytes
|
|
return offset
|
|
|
|
def aml_device_end(offset):
|
|
start = aml_device_start(offset)
|
|
offset += 2
|
|
pkglenbytes = aml_pkglen_bytes(offset)
|
|
pkglen = aml_pkglen(offset)
|
|
return offset + pkglen
|
|
|
|
def aml_processor_start(offset):
|
|
#0x5B 0x83 ProcessorOp PkgLength NameString ProcID
|
|
if ((aml[offset] != 0x5B) or (aml[offset + 1] != 0x83)):
|
|
die( "Name offset 0x%x: expected 0x5B 0x83 actual 0x%x 0x%x" %
|
|
(offset, aml[offset], aml[offset + 1]));
|
|
return offset
|
|
|
|
def aml_processor_string(offset):
|
|
#0x5B 0x83 ProcessorOp PkgLength NameString ProcID
|
|
start = aml_processor_start(offset)
|
|
offset += 2
|
|
pkglenbytes = aml_pkglen_bytes(offset)
|
|
offset += pkglenbytes
|
|
return offset
|
|
|
|
def aml_processor_end(offset):
|
|
start = aml_processor_start(offset)
|
|
offset += 2
|
|
pkglenbytes = aml_pkglen_bytes(offset)
|
|
pkglen = aml_pkglen(offset)
|
|
return offset + pkglen
|
|
|
|
def aml_package_start(offset):
|
|
offset = aml_name_string(offset) + 4
|
|
# 0x12 PkgLength NumElements PackageElementList
|
|
if (aml[offset] != 0x12):
|
|
die( "Name offset 0x%x: expected 0x12 actual 0x%x" %
|
|
(offset, aml[offset]));
|
|
offset += 1
|
|
return offset + aml_pkglen_bytes(offset) + 1
|
|
|
|
lineno = 0
|
|
for line in fileinput.input():
|
|
# Strip trailing newline
|
|
line = line.rstrip();
|
|
# line number and debug string to output in case of errors
|
|
lineno = lineno + 1
|
|
debug = "input line %d: %s" % (lineno, line)
|
|
#ASL listing: space, then line#, then ...., then code
|
|
pasl = re.compile('^\s+([0-9]+)(:\s\s|\.\.\.\.)\s*')
|
|
m = pasl.search(line)
|
|
if (m):
|
|
add_asl(lineno, pasl.sub("", line));
|
|
# AML listing: offset in hex, then ...., then code
|
|
paml = re.compile('^([0-9A-Fa-f]+)(:\s\s|\.\.\.\.)\s*')
|
|
m = paml.search(line)
|
|
if (m):
|
|
add_aml(m.group(1), paml.sub("", line))
|
|
|
|
# Now go over code
|
|
# Track AML offset of a previous non-empty ASL command
|
|
prev_aml_offset = -1
|
|
for i in range(len(asl)):
|
|
debug = "input line %d: %s" % (asl[i].lineno, asl[i].line)
|
|
|
|
l = asl[i].line
|
|
|
|
# skip if not an extract directive
|
|
a = len(re.findall(r'ACPI_EXTRACT', l))
|
|
if (not a):
|
|
# If not empty, store AML offset. Will be used for sanity checks
|
|
# IASL seems to put {}. at random places in the listing.
|
|
# Ignore any non-words for the purpose of this test.
|
|
m = re.search(r'\w+', l)
|
|
if (m):
|
|
prev_aml_offset = asl[i].aml_offset
|
|
continue
|
|
|
|
if (a > 1):
|
|
die("Expected at most one ACPI_EXTRACT per line, actual %d" % a)
|
|
|
|
mext = re.search(r'''
|
|
^\s* # leading whitespace
|
|
/\*\s* # start C comment
|
|
(ACPI_EXTRACT_\w+) # directive: group(1)
|
|
\s+ # whitspace separates directive from array name
|
|
(\w+) # array name: group(2)
|
|
\s*\*/ # end of C comment
|
|
\s*$ # trailing whitespace
|
|
''', l, re.VERBOSE)
|
|
if (not mext):
|
|
die("Stray ACPI_EXTRACT in input")
|
|
|
|
# previous command must have produced some AML,
|
|
# otherwise we are in a middle of a block
|
|
if (prev_aml_offset == asl[i].aml_offset):
|
|
die("ACPI_EXTRACT directive in the middle of a block")
|
|
|
|
directive = mext.group(1)
|
|
array = mext.group(2)
|
|
offset = asl[i].aml_offset
|
|
|
|
if (directive == "ACPI_EXTRACT_ALL_CODE"):
|
|
if array in output:
|
|
die("%s directive used more than once" % directive)
|
|
output[array] = aml
|
|
continue
|
|
if (directive == "ACPI_EXTRACT_NAME_BUFFER8"):
|
|
offset = aml_name_buffer(offset, 8)
|
|
elif (directive == "ACPI_EXTRACT_NAME_BUFFER16"):
|
|
offset = aml_name_buffer(offset, 16)
|
|
elif (directive == "ACPI_EXTRACT_NAME_DWORD_CONST"):
|
|
offset = aml_name_dword_const(offset)
|
|
elif (directive == "ACPI_EXTRACT_NAME_WORD_CONST"):
|
|
offset = aml_name_word_const(offset)
|
|
elif (directive == "ACPI_EXTRACT_NAME_BYTE_CONST"):
|
|
offset = aml_name_byte_const(offset)
|
|
elif (directive == "ACPI_EXTRACT_NAME_STRING"):
|
|
offset = aml_name_string(offset)
|
|
elif (directive == "ACPI_EXTRACT_METHOD_STRING"):
|
|
offset = aml_method_string(offset)
|
|
elif (directive == "ACPI_EXTRACT_DEVICE_START"):
|
|
offset = aml_device_start(offset)
|
|
elif (directive == "ACPI_EXTRACT_DEVICE_STRING"):
|
|
offset = aml_device_string(offset)
|
|
elif (directive == "ACPI_EXTRACT_DEVICE_END"):
|
|
offset = aml_device_end(offset)
|
|
elif (directive == "ACPI_EXTRACT_PROCESSOR_START"):
|
|
offset = aml_processor_start(offset)
|
|
elif (directive == "ACPI_EXTRACT_PROCESSOR_STRING"):
|
|
offset = aml_processor_string(offset)
|
|
elif (directive == "ACPI_EXTRACT_PROCESSOR_END"):
|
|
offset = aml_processor_end(offset)
|
|
elif (directive == "ACPI_EXTRACT_PKG_START"):
|
|
offset = aml_package_start(offset)
|
|
else:
|
|
die("Unsupported directive %s" % directive)
|
|
|
|
if array not in output:
|
|
output[array] = []
|
|
output[array].append(offset)
|
|
|
|
debug = "at end of file"
|
|
|
|
def get_value_type(maxvalue):
|
|
#Use type large enough to fit the table
|
|
if (maxvalue >= 0x10000):
|
|
return "int"
|
|
elif (maxvalue >= 0x100):
|
|
return "short"
|
|
else:
|
|
return "char"
|
|
|
|
# Pretty print output
|
|
for array in output.keys():
|
|
otype = get_value_type(max(output[array]))
|
|
odata = []
|
|
for value in output[array]:
|
|
odata.append("0x%x" % value)
|
|
sys.stdout.write("static unsigned %s %s[] = {\n" % (otype, array))
|
|
sys.stdout.write(",\n".join(odata))
|
|
sys.stdout.write('\n};\n');
|