[SeaBIOS] [PATCH v2 4/6] acpi_extract: detect DeviceOp
Paolo Bonzini
pbonzini at redhat.com
Thu Aug 2 15:07:24 CEST 2012
The DeviceOp AML opcode has more or less the same structure as ProcessorOp,
except that there is no processor ID.
Signed-off-by: Paolo Bonzini <pbonzini at redhat.com>
---
tools/acpi_extract.py | 28 ++++++++++++++++++++++++++++
1 file changed, 28 insertions(+)
diff --git a/tools/acpi_extract.py b/tools/acpi_extract.py
index 81fa4aa..3295678 100755
--- a/tools/acpi_extract.py
+++ b/tools/acpi_extract.py
@@ -164,6 +164,28 @@ def aml_name_word_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)):
@@ -271,6 +293,12 @@ for i in range(len(asl)):
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"):
--
1.7.10.4
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