BaseTools/Source/Python/AutoGen/GenVar.py - third_party/edk2 - Git at Google

 # Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
 # SPDX-License-Identifier: BSD-2-Clause-Patent

 #
 # This file is used to collect the Variable checking information
 #

 # #
 # Import Modules
 #
 from struct import pack, unpack
 import collections
 import copy
 from Common.VariableAttributes import VariableAttributes
 from Common.Misc import *
 import collections
 import Common.DataType as DataType
 import Common.GlobalData as GlobalData

 var_info = collections.namedtuple("uefi_var", "pcdindex,pcdname,defaultstoragename,skuname,var_name, var_guid, var_offset,var_attribute,pcd_default_value, default_value, data_type,PcdDscLine,StructurePcd")
 NvStorageHeaderSize = 28
 VariableHeaderSize = 32
 AuthenticatedVariableHeaderSize = 60

 class VariableMgr(object):
     def __init__(self, DefaultStoreMap, SkuIdMap):
         self.VarInfo = []
         self.DefaultStoreMap = DefaultStoreMap
         self.SkuIdMap = SkuIdMap
         self.VpdRegionSize = 0
         self.NVHeaderBuff = None
         self.VarDefaultBuff = None
         self.VarDeltaBuff = None

     def append_variable(self, uefi_var):
         self.VarInfo.append(uefi_var)

     def SetVpdRegionMaxSize(self, maxsize):
         self.VpdRegionSize = maxsize

     def PatchNVStoreDefaultMaxSize(self, maxsize):
         if not self.NVHeaderBuff:
             return ""
         self.NVHeaderBuff = self.NVHeaderBuff[:8] + pack("=Q", maxsize)
         default_var_bin = VariableMgr.format_data(self.NVHeaderBuff + self.VarDefaultBuff + self.VarDeltaBuff)
         value_str = "{"
         default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]
         value_str += ",".join(default_var_bin_strip)
         value_str += "}"
         return value_str

     def combine_variable(self):
         indexedvarinfo = collections.OrderedDict()
         for item in self.VarInfo:
             if (item.skuname, item.defaultstoragename, item.var_name, item.var_guid) not in indexedvarinfo:
                 indexedvarinfo[(item.skuname, item.defaultstoragename, item.var_name, item.var_guid) ] = []
             indexedvarinfo[(item.skuname, item.defaultstoragename, item.var_name, item.var_guid)].append(item)
         for key in indexedvarinfo:
             sku_var_info_offset_list = indexedvarinfo[key]
             sku_var_info_offset_list.sort(key=lambda x:x.PcdDscLine)
             FirstOffset = int(sku_var_info_offset_list[0].var_offset, 16) if sku_var_info_offset_list[0].var_offset.upper().startswith("0X") else int(sku_var_info_offset_list[0].var_offset)
             fisrtvalue_list = sku_var_info_offset_list[0].default_value.strip("{").strip("}").split(",")
             firstdata_type = sku_var_info_offset_list[0].data_type
             if firstdata_type in DataType.TAB_PCD_NUMERIC_TYPES:
                 fisrtdata_flag = DataType.PACK_CODE_BY_SIZE[MAX_SIZE_TYPE[firstdata_type]]
                 fisrtdata = fisrtvalue_list[0]
                 fisrtvalue_list = []
                 pack_data = pack(fisrtdata_flag, int(fisrtdata, 0))
                 for data_byte in range(len(pack_data)):
                     fisrtvalue_list.append(hex(unpack("B", pack_data[data_byte:data_byte + 1])[0]))
             newvalue_list = ["0x00"] * FirstOffset + fisrtvalue_list

             for var_item in sku_var_info_offset_list[1:]:
                 CurOffset = int(var_item.var_offset, 16) if var_item.var_offset.upper().startswith("0X") else int(var_item.var_offset)
                 CurvalueList = var_item.default_value.strip("{").strip("}").split(",")
                 Curdata_type = var_item.data_type
                 if Curdata_type in DataType.TAB_PCD_NUMERIC_TYPES:
                     data_flag = DataType.PACK_CODE_BY_SIZE[MAX_SIZE_TYPE[Curdata_type]]
                     data = CurvalueList[0]
                     CurvalueList = []
                     pack_data = pack(data_flag, int(data, 0))
                     for data_byte in range(len(pack_data)):
                         CurvalueList.append(hex(unpack("B", pack_data[data_byte:data_byte + 1])[0]))
                 if CurOffset > len(newvalue_list):
                     newvalue_list = newvalue_list + ["0x00"] * (CurOffset - len(newvalue_list)) + CurvalueList
                 else:
                     newvalue_list[CurOffset : CurOffset + len(CurvalueList)] = CurvalueList

             newvaluestr =  "{" + ",".join(newvalue_list) +"}"
             n = sku_var_info_offset_list[0]
             indexedvarinfo[key] =  [var_info(n.pcdindex, n.pcdname, n.defaultstoragename, n.skuname, n.var_name, n.var_guid, "0x00", n.var_attribute, newvaluestr, newvaluestr, DataType.TAB_VOID,n.PcdDscLine,n.StructurePcd)]
         self.VarInfo = [item[0] for item in list(indexedvarinfo.values())]

     def process_variable_data(self):

         var_data = collections.defaultdict(collections.OrderedDict)

         indexedvarinfo = collections.OrderedDict()
         for item in self.VarInfo:
             if item.pcdindex not in indexedvarinfo:
                 indexedvarinfo[item.pcdindex] = dict()
             indexedvarinfo[item.pcdindex][(item.skuname, item.defaultstoragename)] = item

         for index in indexedvarinfo:
             sku_var_info = indexedvarinfo[index]

             default_data_buffer = ""
             others_data_buffer = ""
             tail = None
             default_sku_default = indexedvarinfo[index].get((DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT))

             if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:
                 var_max_len = max(len(var_item.default_value.split(",")) for var_item in sku_var_info.values())
                 if len(default_sku_default.default_value.split(",")) < var_max_len:
                     tail = ",".join("0x00" for i in range(var_max_len-len(default_sku_default.default_value.split(","))))

             default_data_buffer = VariableMgr.PACK_VARIABLES_DATA(default_sku_default.default_value, default_sku_default.data_type, tail)

             default_data_array = ()
             for item in range(len(default_data_buffer)):
                 default_data_array += unpack("B", default_data_buffer[item:item + 1])

             var_data[(DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT)][index] = (default_data_buffer, sku_var_info[(DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT)])

             for (skuid, defaultstoragename) in indexedvarinfo[index]:
                 tail = None
                 if (skuid, defaultstoragename) == (DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT):
                     continue
                 other_sku_other = indexedvarinfo[index][(skuid, defaultstoragename)]

                 if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:
                     if len(other_sku_other.default_value.split(",")) < var_max_len:
                         tail = ",".join("0x00" for i in range(var_max_len-len(other_sku_other.default_value.split(","))))

                 others_data_buffer = VariableMgr.PACK_VARIABLES_DATA(other_sku_other.default_value, other_sku_other.data_type, tail)

                 others_data_array = ()
                 for item in range(len(others_data_buffer)):
                     others_data_array += unpack("B", others_data_buffer[item:item + 1])

                 data_delta = VariableMgr.calculate_delta(default_data_array, others_data_array)

                 var_data[(skuid, defaultstoragename)][index] = (data_delta, sku_var_info[(skuid, defaultstoragename)])
         return var_data

     def new_process_varinfo(self):
         self.combine_variable()

         var_data = self.process_variable_data()

         if not var_data:
             return []

         pcds_default_data = var_data.get((DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT), {})
         NvStoreDataBuffer = bytearray()
         var_data_offset = collections.OrderedDict()
         offset = NvStorageHeaderSize
         for default_data, default_info in pcds_default_data.values():
             var_name_buffer = VariableMgr.PACK_VARIABLE_NAME(default_info.var_name)

             vendorguid = default_info.var_guid.split('-')

             if default_info.var_attribute:
                 var_attr_value, _ = VariableAttributes.GetVarAttributes(default_info.var_attribute)
             else:
                 var_attr_value = 0x07

             DataBuffer = VariableMgr.AlignData(var_name_buffer + default_data)

             data_size = len(DataBuffer)
             if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
                 offset += AuthenticatedVariableHeaderSize + len(default_info.var_name.split(","))
             else:
                 offset += VariableHeaderSize + len(default_info.var_name.split(","))
             var_data_offset[default_info.pcdindex] = offset
             offset += data_size - len(default_info.var_name.split(","))
             if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
                 var_header_buffer = VariableMgr.PACK_AUTHENTICATED_VARIABLE_HEADER(var_attr_value, len(default_info.var_name.split(",")), len (default_data), vendorguid)
             else:
                 var_header_buffer = VariableMgr.PACK_VARIABLE_HEADER(var_attr_value, len(default_info.var_name.split(",")), len (default_data), vendorguid)
             NvStoreDataBuffer += (var_header_buffer + DataBuffer)

         if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
             variable_storage_header_buffer = VariableMgr.PACK_AUTHENTICATED_VARIABLE_STORE_HEADER(len(NvStoreDataBuffer) + 28)
         else:
             variable_storage_header_buffer = VariableMgr.PACK_VARIABLE_STORE_HEADER(len(NvStoreDataBuffer) + 28)

         nv_default_part = VariableMgr.AlignData(VariableMgr.PACK_DEFAULT_DATA(0, 0, VariableMgr.unpack_data(variable_storage_header_buffer+NvStoreDataBuffer)), 8)

         data_delta_structure_buffer = bytearray()
         for skuname, defaultstore in var_data:
             if (skuname, defaultstore) == (DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT):
                 continue
             pcds_sku_data = var_data[(skuname, defaultstore)]
             delta_data_set = []
             for pcdindex in pcds_sku_data:
                 offset = var_data_offset[pcdindex]
                 delta_data, _ = pcds_sku_data[pcdindex]
                 delta_data = [(item[0] + offset, item[1]) for item in delta_data]
                 delta_data_set.extend(delta_data)

             data_delta_structure_buffer += VariableMgr.AlignData(self.PACK_DELTA_DATA(skuname, defaultstore, delta_data_set), 8)

         size = len(nv_default_part + data_delta_structure_buffer) + 16
         maxsize = self.VpdRegionSize if self.VpdRegionSize else size
         NV_Store_Default_Header = VariableMgr.PACK_NV_STORE_DEFAULT_HEADER(size, maxsize)

         self.NVHeaderBuff =  NV_Store_Default_Header
         self.VarDefaultBuff =nv_default_part
         self.VarDeltaBuff =  data_delta_structure_buffer
         return VariableMgr.format_data(NV_Store_Default_Header + nv_default_part + data_delta_structure_buffer)


     @staticmethod
     def format_data(data):
         return  [hex(item) for item in VariableMgr.unpack_data(data)]

     @staticmethod
     def unpack_data(data):
         final_data = ()
         for item in range(len(data)):
             final_data += unpack("B", data[item:item + 1])
         return final_data

     @staticmethod
     def calculate_delta(default, theother):
         if len(default) - len(theother) != 0:
             EdkLogger.error("build", FORMAT_INVALID, 'The variable data length is not the same for the same PCD.')
         data_delta = []
         for i in range(len(default)):
             if default[i] != theother[i]:
                 data_delta.append((i, theother[i]))
         return data_delta

     def dump(self):

         default_var_bin = self.new_process_varinfo()
         if default_var_bin:
             value_str = "{"
             default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]
             value_str += ",".join(default_var_bin_strip)
             value_str += "}"
             return value_str
         return ""

     @staticmethod
     def PACK_VARIABLE_STORE_HEADER(size):
         #Signature: gEfiVariableGuid
         Guid = "{ 0xddcf3616, 0x3275, 0x4164, { 0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d }}"
         Guid = GuidStructureStringToGuidString(Guid)
         GuidBuffer = PackGUID(Guid.split('-'))

         SizeBuffer = pack('=L', size)
         FormatBuffer = pack('=B', 0x5A)
         StateBuffer = pack('=B', 0xFE)
         reservedBuffer = pack('=H', 0)
         reservedBuffer += pack('=L', 0)

         return GuidBuffer + SizeBuffer + FormatBuffer + StateBuffer + reservedBuffer

     def PACK_AUTHENTICATED_VARIABLE_STORE_HEADER(size):
         #Signature: gEfiAuthenticatedVariableGuid
         Guid = "{ 0xaaf32c78, 0x947b, 0x439a, { 0xa1, 0x80, 0x2e, 0x14, 0x4e, 0xc3, 0x77, 0x92 }}"
         Guid = GuidStructureStringToGuidString(Guid)
         GuidBuffer = PackGUID(Guid.split('-'))

         SizeBuffer = pack('=L', size)
         FormatBuffer = pack('=B', 0x5A)
         StateBuffer = pack('=B', 0xFE)
         reservedBuffer = pack('=H', 0)
         reservedBuffer += pack('=L', 0)

         return GuidBuffer + SizeBuffer + FormatBuffer + StateBuffer + reservedBuffer

     @staticmethod
     def PACK_NV_STORE_DEFAULT_HEADER(size, maxsize):
         Signature = pack('=B', ord('N'))
         Signature += pack("=B", ord('S'))
         Signature += pack("=B", ord('D'))
         Signature += pack("=B", ord('B'))

         SizeBuffer = pack("=L", size)
         MaxSizeBuffer = pack("=Q", maxsize)

         return Signature + SizeBuffer + MaxSizeBuffer

     @staticmethod
     def PACK_VARIABLE_HEADER(attribute, namesize, datasize, vendorguid):

         Buffer = pack('=H', 0x55AA) # pack StartID
         Buffer += pack('=B', 0x3F)  # pack State
         Buffer += pack('=B', 0)     # pack reserved

         Buffer += pack('=L', attribute)
         Buffer += pack('=L', namesize)
         Buffer += pack('=L', datasize)

         Buffer += PackGUID(vendorguid)

         return Buffer

     @staticmethod
     def PACK_AUTHENTICATED_VARIABLE_HEADER(attribute, namesize, datasize, vendorguid):

         Buffer = pack('=H', 0x55AA)    # pack StartID
         Buffer += pack('=B', 0x3F)     # pack State
         Buffer += pack('=B', 0)        # pack reserved

         Buffer += pack('=L', attribute)

         Buffer += pack('=Q', 0)        # pack MonotonicCount
         Buffer += pack('=HBBBBBBLhBB', # pack TimeStamp
                          0,            # UINT16 Year
                          0,            # UINT8  Month
                          0,            # UINT8  Day
                          0,            # UINT8  Hour
                          0,            # UINT8  Minute
                          0,            # UINT8  Second
                          0,            # UINT8  Pad1
                          0,            # UINT32 Nanosecond
                          0,            # INT16  TimeZone
                          0,            # UINT8  Daylight
                          0)            # UINT8  Pad2
         Buffer += pack('=L', 0)        # pack PubKeyIndex

         Buffer += pack('=L', namesize)
         Buffer += pack('=L', datasize)

         Buffer += PackGUID(vendorguid)

         return Buffer

     @staticmethod
     def PACK_VARIABLES_DATA(var_value,data_type, tail = None):
         Buffer = bytearray()
         data_len = 0
         if data_type == DataType.TAB_VOID:
             for value_char in var_value.strip("{").strip("}").split(","):
                 Buffer += pack("=B", int(value_char, 16))
             data_len += len(var_value.split(","))
             if tail:
                 for value_char in tail.split(","):
                     Buffer += pack("=B", int(value_char, 16))
                 data_len += len(tail.split(","))
         elif data_type == "BOOLEAN":
             Buffer += pack("=B", True) if var_value.upper() in ["TRUE","1"] else pack("=B", False)
             data_len += 1
         elif data_type  == DataType.TAB_UINT8:
             Buffer += pack("=B", GetIntegerValue(var_value))
             data_len += 1
         elif data_type == DataType.TAB_UINT16:
             Buffer += pack("=H", GetIntegerValue(var_value))
             data_len += 2
         elif data_type == DataType.TAB_UINT32:
             Buffer += pack("=L", GetIntegerValue(var_value))
             data_len += 4
         elif data_type == DataType.TAB_UINT64:
             Buffer += pack("=Q", GetIntegerValue(var_value))
             data_len += 8

         return Buffer

     @staticmethod
     def PACK_DEFAULT_DATA(defaultstoragename, skuid, var_value):
         Buffer = bytearray()
         Buffer += pack("=L", 4+8+8)
         Buffer += pack("=Q", int(skuid))
         Buffer += pack("=Q", int(defaultstoragename))

         for item in var_value:
             Buffer += pack("=B", item)

         Buffer = pack("=L", len(Buffer)+4) + Buffer

         return Buffer

     def GetSkuId(self, skuname):
         if skuname not in self.SkuIdMap:
             return None
         return self.SkuIdMap.get(skuname)[0]

     def GetDefaultStoreId(self, dname):
         if dname not in self.DefaultStoreMap:
             return None
         return self.DefaultStoreMap.get(dname)[0]

     def PACK_DELTA_DATA(self, skuname, defaultstoragename, delta_list):
         skuid = self.GetSkuId(skuname)
         defaultstorageid = self.GetDefaultStoreId(defaultstoragename)
         Buffer = bytearray()
         Buffer += pack("=L", 4+8+8)
         Buffer += pack("=Q", int(skuid))
         Buffer += pack("=Q", int(defaultstorageid))
         for (delta_offset, value) in delta_list:
             Buffer += pack("=L", delta_offset)
             Buffer = Buffer[:-1] + pack("=B", value)

         Buffer = pack("=L", len(Buffer) + 4) + Buffer

         return Buffer

     @staticmethod
     def AlignData(data, align = 4):
         mybuffer = data
         if (len(data) % align) > 0:
             for i in range(align - (len(data) % align)):
                 mybuffer += pack("=B", 0)

         return mybuffer

     @staticmethod
     def PACK_VARIABLE_NAME(var_name):
         Buffer = bytearray()
         for name_char in var_name.strip("{").strip("}").split(","):
             Buffer += pack("=B", int(name_char, 16))

         return Buffer
	# Copyright (c) 2017 - 2018, Intel Corporation. All rights reserved.<BR>
	# SPDX-License-Identifier: BSD-2-Clause-Patent

	#
	# This file is used to collect the Variable checking information
	#

	# #
	# Import Modules
	#
	from struct import pack, unpack
	import collections
	import copy
	from Common.VariableAttributes import VariableAttributes
	from Common.Misc import *
	import collections
	import Common.DataType as DataType
	import Common.GlobalData as GlobalData

	var_info = collections.namedtuple("uefi_var", "pcdindex,pcdname,defaultstoragename,skuname,var_name, var_guid, var_offset,var_attribute,pcd_default_value, default_value, data_type,PcdDscLine,StructurePcd")
	NvStorageHeaderSize = 28
	VariableHeaderSize = 32
	AuthenticatedVariableHeaderSize = 60

	class VariableMgr(object):
	def __init__(self, DefaultStoreMap, SkuIdMap):
	self.VarInfo = []
	self.DefaultStoreMap = DefaultStoreMap
	self.SkuIdMap = SkuIdMap
	self.VpdRegionSize = 0
	self.NVHeaderBuff = None
	self.VarDefaultBuff = None
	self.VarDeltaBuff = None

	def append_variable(self, uefi_var):
	self.VarInfo.append(uefi_var)

	def SetVpdRegionMaxSize(self, maxsize):
	self.VpdRegionSize = maxsize

	def PatchNVStoreDefaultMaxSize(self, maxsize):
	if not self.NVHeaderBuff:
	return ""
	self.NVHeaderBuff = self.NVHeaderBuff[:8] + pack("=Q", maxsize)
	default_var_bin = VariableMgr.format_data(self.NVHeaderBuff + self.VarDefaultBuff + self.VarDeltaBuff)
	value_str = "{"
	default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]
	value_str += ",".join(default_var_bin_strip)
	value_str += "}"
	return value_str

	def combine_variable(self):
	indexedvarinfo = collections.OrderedDict()
	for item in self.VarInfo:
	if (item.skuname, item.defaultstoragename, item.var_name, item.var_guid) not in indexedvarinfo:
	indexedvarinfo[(item.skuname, item.defaultstoragename, item.var_name, item.var_guid) ] = []
	indexedvarinfo[(item.skuname, item.defaultstoragename, item.var_name, item.var_guid)].append(item)
	for key in indexedvarinfo:
	sku_var_info_offset_list = indexedvarinfo[key]
	sku_var_info_offset_list.sort(key=lambda x:x.PcdDscLine)
	FirstOffset = int(sku_var_info_offset_list[0].var_offset, 16) if sku_var_info_offset_list[0].var_offset.upper().startswith("0X") else int(sku_var_info_offset_list[0].var_offset)
	fisrtvalue_list = sku_var_info_offset_list[0].default_value.strip("{").strip("}").split(",")
	firstdata_type = sku_var_info_offset_list[0].data_type
	if firstdata_type in DataType.TAB_PCD_NUMERIC_TYPES:
	fisrtdata_flag = DataType.PACK_CODE_BY_SIZE[MAX_SIZE_TYPE[firstdata_type]]
	fisrtdata = fisrtvalue_list[0]
	fisrtvalue_list = []
	pack_data = pack(fisrtdata_flag, int(fisrtdata, 0))
	for data_byte in range(len(pack_data)):
	fisrtvalue_list.append(hex(unpack("B", pack_data[data_byte:data_byte + 1])[0]))
	newvalue_list = ["0x00"] * FirstOffset + fisrtvalue_list

	for var_item in sku_var_info_offset_list[1:]:
	CurOffset = int(var_item.var_offset, 16) if var_item.var_offset.upper().startswith("0X") else int(var_item.var_offset)
	CurvalueList = var_item.default_value.strip("{").strip("}").split(",")
	Curdata_type = var_item.data_type
	if Curdata_type in DataType.TAB_PCD_NUMERIC_TYPES:
	data_flag = DataType.PACK_CODE_BY_SIZE[MAX_SIZE_TYPE[Curdata_type]]
	data = CurvalueList[0]
	CurvalueList = []
	pack_data = pack(data_flag, int(data, 0))
	for data_byte in range(len(pack_data)):
	CurvalueList.append(hex(unpack("B", pack_data[data_byte:data_byte + 1])[0]))
	if CurOffset > len(newvalue_list):
	newvalue_list = newvalue_list + ["0x00"] * (CurOffset - len(newvalue_list)) + CurvalueList
	else:
	newvalue_list[CurOffset : CurOffset + len(CurvalueList)] = CurvalueList

	newvaluestr = "{" + ",".join(newvalue_list) +"}"
	n = sku_var_info_offset_list[0]
	indexedvarinfo[key] = [var_info(n.pcdindex, n.pcdname, n.defaultstoragename, n.skuname, n.var_name, n.var_guid, "0x00", n.var_attribute, newvaluestr, newvaluestr, DataType.TAB_VOID,n.PcdDscLine,n.StructurePcd)]
	self.VarInfo = [item[0] for item in list(indexedvarinfo.values())]

	def process_variable_data(self):

	var_data = collections.defaultdict(collections.OrderedDict)

	indexedvarinfo = collections.OrderedDict()
	for item in self.VarInfo:
	if item.pcdindex not in indexedvarinfo:
	indexedvarinfo[item.pcdindex] = dict()
	indexedvarinfo[item.pcdindex][(item.skuname, item.defaultstoragename)] = item

	for index in indexedvarinfo:
	sku_var_info = indexedvarinfo[index]

	default_data_buffer = ""
	others_data_buffer = ""
	tail = None
	default_sku_default = indexedvarinfo[index].get((DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT))

	if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:
	var_max_len = max(len(var_item.default_value.split(",")) for var_item in sku_var_info.values())
	if len(default_sku_default.default_value.split(",")) < var_max_len:
	tail = ",".join("0x00" for i in range(var_max_len-len(default_sku_default.default_value.split(","))))

	default_data_buffer = VariableMgr.PACK_VARIABLES_DATA(default_sku_default.default_value, default_sku_default.data_type, tail)

	default_data_array = ()
	for item in range(len(default_data_buffer)):
	default_data_array += unpack("B", default_data_buffer[item:item + 1])

	var_data[(DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT)][index] = (default_data_buffer, sku_var_info[(DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT)])

	for (skuid, defaultstoragename) in indexedvarinfo[index]:
	tail = None
	if (skuid, defaultstoragename) == (DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT):
	continue
	other_sku_other = indexedvarinfo[index][(skuid, defaultstoragename)]

	if default_sku_default.data_type not in DataType.TAB_PCD_NUMERIC_TYPES:
	if len(other_sku_other.default_value.split(",")) < var_max_len:
	tail = ",".join("0x00" for i in range(var_max_len-len(other_sku_other.default_value.split(","))))

	others_data_buffer = VariableMgr.PACK_VARIABLES_DATA(other_sku_other.default_value, other_sku_other.data_type, tail)

	others_data_array = ()
	for item in range(len(others_data_buffer)):
	others_data_array += unpack("B", others_data_buffer[item:item + 1])

	data_delta = VariableMgr.calculate_delta(default_data_array, others_data_array)

	var_data[(skuid, defaultstoragename)][index] = (data_delta, sku_var_info[(skuid, defaultstoragename)])
	return var_data

	def new_process_varinfo(self):
	self.combine_variable()

	var_data = self.process_variable_data()

	if not var_data:
	return []

	pcds_default_data = var_data.get((DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT), {})
	NvStoreDataBuffer = bytearray()
	var_data_offset = collections.OrderedDict()
	offset = NvStorageHeaderSize
	for default_data, default_info in pcds_default_data.values():
	var_name_buffer = VariableMgr.PACK_VARIABLE_NAME(default_info.var_name)

	vendorguid = default_info.var_guid.split('-')

	if default_info.var_attribute:
	var_attr_value, _ = VariableAttributes.GetVarAttributes(default_info.var_attribute)
	else:
	var_attr_value = 0x07

	DataBuffer = VariableMgr.AlignData(var_name_buffer + default_data)

	data_size = len(DataBuffer)
	if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
	offset += AuthenticatedVariableHeaderSize + len(default_info.var_name.split(","))
	else:
	offset += VariableHeaderSize + len(default_info.var_name.split(","))
	var_data_offset[default_info.pcdindex] = offset
	offset += data_size - len(default_info.var_name.split(","))
	if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
	var_header_buffer = VariableMgr.PACK_AUTHENTICATED_VARIABLE_HEADER(var_attr_value, len(default_info.var_name.split(",")), len (default_data), vendorguid)
	else:
	var_header_buffer = VariableMgr.PACK_VARIABLE_HEADER(var_attr_value, len(default_info.var_name.split(",")), len (default_data), vendorguid)
	NvStoreDataBuffer += (var_header_buffer + DataBuffer)

	if GlobalData.gCommandLineDefines.get(TAB_DSC_DEFINES_VPD_AUTHENTICATED_VARIABLE_STORE,"FALSE").upper() == "TRUE":
	variable_storage_header_buffer = VariableMgr.PACK_AUTHENTICATED_VARIABLE_STORE_HEADER(len(NvStoreDataBuffer) + 28)
	else:
	variable_storage_header_buffer = VariableMgr.PACK_VARIABLE_STORE_HEADER(len(NvStoreDataBuffer) + 28)

	nv_default_part = VariableMgr.AlignData(VariableMgr.PACK_DEFAULT_DATA(0, 0, VariableMgr.unpack_data(variable_storage_header_buffer+NvStoreDataBuffer)), 8)

	data_delta_structure_buffer = bytearray()
	for skuname, defaultstore in var_data:
	if (skuname, defaultstore) == (DataType.TAB_DEFAULT, DataType.TAB_DEFAULT_STORES_DEFAULT):
	continue
	pcds_sku_data = var_data[(skuname, defaultstore)]
	delta_data_set = []
	for pcdindex in pcds_sku_data:
	offset = var_data_offset[pcdindex]
	delta_data, _ = pcds_sku_data[pcdindex]
	delta_data = [(item[0] + offset, item[1]) for item in delta_data]
	delta_data_set.extend(delta_data)

	data_delta_structure_buffer += VariableMgr.AlignData(self.PACK_DELTA_DATA(skuname, defaultstore, delta_data_set), 8)

	size = len(nv_default_part + data_delta_structure_buffer) + 16
	maxsize = self.VpdRegionSize if self.VpdRegionSize else size
	NV_Store_Default_Header = VariableMgr.PACK_NV_STORE_DEFAULT_HEADER(size, maxsize)

	self.NVHeaderBuff = NV_Store_Default_Header
	self.VarDefaultBuff =nv_default_part
	self.VarDeltaBuff = data_delta_structure_buffer
	return VariableMgr.format_data(NV_Store_Default_Header + nv_default_part + data_delta_structure_buffer)


	@staticmethod
	def format_data(data):
	return [hex(item) for item in VariableMgr.unpack_data(data)]

	@staticmethod
	def unpack_data(data):
	final_data = ()
	for item in range(len(data)):
	final_data += unpack("B", data[item:item + 1])
	return final_data

	@staticmethod
	def calculate_delta(default, theother):
	if len(default) - len(theother) != 0:
	EdkLogger.error("build", FORMAT_INVALID, 'The variable data length is not the same for the same PCD.')
	data_delta = []
	for i in range(len(default)):
	if default[i] != theother[i]:
	data_delta.append((i, theother[i]))
	return data_delta

	def dump(self):

	default_var_bin = self.new_process_varinfo()
	if default_var_bin:
	value_str = "{"
	default_var_bin_strip = [ data.strip("""'""") for data in default_var_bin]
	value_str += ",".join(default_var_bin_strip)
	value_str += "}"
	return value_str
	return ""

	@staticmethod
	def PACK_VARIABLE_STORE_HEADER(size):
	#Signature: gEfiVariableGuid
	Guid = "{ 0xddcf3616, 0x3275, 0x4164, { 0x98, 0xb6, 0xfe, 0x85, 0x70, 0x7f, 0xfe, 0x7d }}"
	Guid = GuidStructureStringToGuidString(Guid)
	GuidBuffer = PackGUID(Guid.split('-'))

	SizeBuffer = pack('=L', size)
	FormatBuffer = pack('=B', 0x5A)
	StateBuffer = pack('=B', 0xFE)
	reservedBuffer = pack('=H', 0)
	reservedBuffer += pack('=L', 0)

	return GuidBuffer + SizeBuffer + FormatBuffer + StateBuffer + reservedBuffer

	def PACK_AUTHENTICATED_VARIABLE_STORE_HEADER(size):
	#Signature: gEfiAuthenticatedVariableGuid
	Guid = "{ 0xaaf32c78, 0x947b, 0x439a, { 0xa1, 0x80, 0x2e, 0x14, 0x4e, 0xc3, 0x77, 0x92 }}"
	Guid = GuidStructureStringToGuidString(Guid)
	GuidBuffer = PackGUID(Guid.split('-'))

	SizeBuffer = pack('=L', size)
	FormatBuffer = pack('=B', 0x5A)
	StateBuffer = pack('=B', 0xFE)
	reservedBuffer = pack('=H', 0)
	reservedBuffer += pack('=L', 0)

	return GuidBuffer + SizeBuffer + FormatBuffer + StateBuffer + reservedBuffer

	@staticmethod
	def PACK_NV_STORE_DEFAULT_HEADER(size, maxsize):
	Signature = pack('=B', ord('N'))
	Signature += pack("=B", ord('S'))
	Signature += pack("=B", ord('D'))
	Signature += pack("=B", ord('B'))

	SizeBuffer = pack("=L", size)
	MaxSizeBuffer = pack("=Q", maxsize)

	return Signature + SizeBuffer + MaxSizeBuffer

	@staticmethod
	def PACK_VARIABLE_HEADER(attribute, namesize, datasize, vendorguid):

	Buffer = pack('=H', 0x55AA) # pack StartID
	Buffer += pack('=B', 0x3F) # pack State
	Buffer += pack('=B', 0) # pack reserved

	Buffer += pack('=L', attribute)
	Buffer += pack('=L', namesize)
	Buffer += pack('=L', datasize)

	Buffer += PackGUID(vendorguid)

	return Buffer

	@staticmethod
	def PACK_AUTHENTICATED_VARIABLE_HEADER(attribute, namesize, datasize, vendorguid):

	Buffer = pack('=H', 0x55AA) # pack StartID
	Buffer += pack('=B', 0x3F) # pack State
	Buffer += pack('=B', 0) # pack reserved

	Buffer += pack('=L', attribute)

	Buffer += pack('=Q', 0) # pack MonotonicCount
	Buffer += pack('=HBBBBBBLhBB', # pack TimeStamp
	0, # UINT16 Year
	0, # UINT8 Month
	0, # UINT8 Day
	0, # UINT8 Hour
	0, # UINT8 Minute
	0, # UINT8 Second
	0, # UINT8 Pad1
	0, # UINT32 Nanosecond
	0, # INT16 TimeZone
	0, # UINT8 Daylight
	0) # UINT8 Pad2
	Buffer += pack('=L', 0) # pack PubKeyIndex

	Buffer += pack('=L', namesize)
	Buffer += pack('=L', datasize)

	Buffer += PackGUID(vendorguid)

	return Buffer

	@staticmethod
	def PACK_VARIABLES_DATA(var_value,data_type, tail = None):
	Buffer = bytearray()
	data_len = 0
	if data_type == DataType.TAB_VOID:
	for value_char in var_value.strip("{").strip("}").split(","):
	Buffer += pack("=B", int(value_char, 16))
	data_len += len(var_value.split(","))
	if tail:
	for value_char in tail.split(","):
	Buffer += pack("=B", int(value_char, 16))
	data_len += len(tail.split(","))
	elif data_type == "BOOLEAN":
	Buffer += pack("=B", True) if var_value.upper() in ["TRUE","1"] else pack("=B", False)
	data_len += 1
	elif data_type == DataType.TAB_UINT8:
	Buffer += pack("=B", GetIntegerValue(var_value))
	data_len += 1
	elif data_type == DataType.TAB_UINT16:
	Buffer += pack("=H", GetIntegerValue(var_value))
	data_len += 2
	elif data_type == DataType.TAB_UINT32:
	Buffer += pack("=L", GetIntegerValue(var_value))
	data_len += 4
	elif data_type == DataType.TAB_UINT64:
	Buffer += pack("=Q", GetIntegerValue(var_value))
	data_len += 8

	return Buffer

	@staticmethod
	def PACK_DEFAULT_DATA(defaultstoragename, skuid, var_value):
	Buffer = bytearray()
	Buffer += pack("=L", 4+8+8)
	Buffer += pack("=Q", int(skuid))
	Buffer += pack("=Q", int(defaultstoragename))

	for item in var_value:
	Buffer += pack("=B", item)

	Buffer = pack("=L", len(Buffer)+4) + Buffer

	return Buffer

	def GetSkuId(self, skuname):
	if skuname not in self.SkuIdMap:
	return None
	return self.SkuIdMap.get(skuname)[0]

	def GetDefaultStoreId(self, dname):
	if dname not in self.DefaultStoreMap:
	return None
	return self.DefaultStoreMap.get(dname)[0]

	def PACK_DELTA_DATA(self, skuname, defaultstoragename, delta_list):
	skuid = self.GetSkuId(skuname)
	defaultstorageid = self.GetDefaultStoreId(defaultstoragename)
	Buffer = bytearray()
	Buffer += pack("=L", 4+8+8)
	Buffer += pack("=Q", int(skuid))
	Buffer += pack("=Q", int(defaultstorageid))
	for (delta_offset, value) in delta_list:
	Buffer += pack("=L", delta_offset)
	Buffer = Buffer[:-1] + pack("=B", value)

	Buffer = pack("=L", len(Buffer) + 4) + Buffer

	return Buffer

	@staticmethod
	def AlignData(data, align = 4):
	mybuffer = data
	if (len(data) % align) > 0:
	for i in range(align - (len(data) % align)):
	mybuffer += pack("=B", 0)

	return mybuffer

	@staticmethod
	def PACK_VARIABLE_NAME(var_name):
	Buffer = bytearray()
	for name_char in var_name.strip("{").strip("}").split(","):
	Buffer += pack("=B", int(name_char, 16))

	return Buffer