projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 82a6a960 BF |
1 | # # @file\r |
| 2 | # \r | |
| 3 | # This file is used to handle the variable attributes and property information\r | |
| 4 | #\r | |
| 5 | #\r | |
| 6 | # Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>\r | |
| 7 | # This program and the accompanying materials\r | |
| 8 | # are licensed and made available under the terms and conditions of the BSD License\r | |
| 9 | # which accompanies this distribution. The full text of the license may be found at\r | |
| 10 | # http://opensource.org/licenses/bsd-license.php\r | |
| 11 | #\r | |
| 12 | # THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 13 | # WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 14 | #\r | |
| 15 | \r | |
| 16 | class VariableAttributes(object):\r | |
| 17 | EFI_VARIABLE_NON_VOLATILE = 0x00000001\r | |
| 18 | EFI_VARIABLE_BOOTSERVICE_ACCESS = 0x00000002\r | |
| 19 | EFI_VARIABLE_RUNTIME_ACCESS = 0x00000004\r | |
| 20 | VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY = 0x00000001\r | |
| 21 | VarAttributesMap = {\r | |
| 22 | "NV":EFI_VARIABLE_NON_VOLATILE,\r | |
| 23 | "BS":EFI_VARIABLE_BOOTSERVICE_ACCESS,\r | |
| 24 | "RT":EFI_VARIABLE_RUNTIME_ACCESS,\r | |
| 25 | "RO":VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY\r | |
| 26 | }\r | |
| 27 | \r | |
| 28 | def __init__(self):\r | |
| 29 | pass\r | |
| 30 | \r | |
| 31 | @staticmethod\r | |
| 32 | def GetVarAttributes(var_attr_str):\r | |
| 33 | VarAttr = 0x00000000\r | |
| 34 | VarProp = 0x00000000\r | |
| 35 | \r | |
| 36 | attr_list = var_attr_str.split(",")\r | |
| 37 | for attr in attr_list:\r | |
| 38 | attr = attr.strip()\r | |
| 39 | if attr == 'RO':\r | |
| 40 | VarProp = VariableAttributes.VAR_CHECK_VARIABLE_PROPERTY_READ_ONLY\r | |
| 41 | else:\r | |
| 42 | VarAttr = VarAttr | VariableAttributes.VarAttributesMap.get(attr, 0x00000000) \r | |
| 43 | return VarAttr, VarProp\r | |
| 44 | @staticmethod\r | |
| 45 | def ValidateVarAttributes(var_attr_str):\r | |
| 46 | if not var_attr_str:\r | |
| 47 | return True, ""\r | |
| 48 | attr_list = var_attr_str.split(",")\r | |
| 49 | attr_temp = []\r | |
| 50 | for attr in attr_list:\r | |
| 51 | attr = attr.strip()\r | |
| 52 | attr_temp.append(attr)\r | |
| 53 | if attr not in VariableAttributes.VarAttributesMap:\r | |
| 54 | return False, "The variable attribute %s is not support to be specified in dsc file. Supported variable attribute are ['BS','NV','RT','RO'] "\r | |
| 55 | if 'RT' in attr_temp and 'BS' not in attr_temp:\r | |
| 56 | return False, "the RT attribute need the BS attribute to be present"\r | |
| 57 | return True, ""\r |