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fb0b259e | 1 | /** @file\r |
48557c65 | 2 | This file implements CalculateCrc32 Boot Services as defined in\r |
3 | Platform Initialization specification 1.0 VOLUME 2 DXE Core Interface.\r | |
fb0b259e | 4 | \r |
9920ae74 | 5 | This Boot Services is in the Runtime Driver because this service is\r |
6 | also required by SetVirtualAddressMap() when the EFI System Table and\r | |
7 | EFI Runtime Services Table are converted from physical address to\r | |
48557c65 | 8 | virtual addresses. This requires that the 32-bit CRC be recomputed.\r |
9920ae74 | 9 | \r |
05542f49 | 10 | Copyright (c) 2006 - 2017, Intel Corporation. All rights reserved.<BR>\r |
9d510e61 | 11 | SPDX-License-Identifier: BSD-2-Clause-Patent\r |
f2abdc91 | 12 | \r |
fb0b259e | 13 | **/\r |
f2abdc91 | 14 | \r |
ed7748fe | 15 | \r |
60c93673 | 16 | #include <Uefi.h>\r |
05542f49 | 17 | #include <Library/BaseLib.h>\r |
f2abdc91 | 18 | \r |
fb0b259e | 19 | /**\r |
20 | Calculate CRC32 for target data.\r | |
21 | \r | |
9fc78752 | 22 | @param Data The target data.\r |
fb0b259e | 23 | @param DataSize The target data size.\r |
24 | @param CrcOut The CRC32 for target data.\r | |
25 | \r | |
26 | @retval EFI_SUCCESS The CRC32 for target data is calculated successfully.\r | |
27 | @retval EFI_INVALID_PARAMETER Some parameter is not valid, so the CRC32 is not\r | |
28 | calculated.\r | |
29 | \r | |
30 | **/\r | |
f2abdc91 | 31 | EFI_STATUS\r |
32 | EFIAPI\r | |
33 | RuntimeDriverCalculateCrc32 (\r | |
34 | IN VOID *Data,\r | |
35 | IN UINTN DataSize,\r | |
36 | OUT UINT32 *CrcOut\r | |
37 | )\r | |
f2abdc91 | 38 | {\r |
3372ab3c LG |
39 | if (Data == NULL || DataSize == 0 || CrcOut == NULL) {\r |
40 | return EFI_INVALID_PARAMETER;\r | |
41 | }\r | |
42 | \r | |
05542f49 | 43 | *CrcOut = CalculateCrc32 (Data, DataSize);\r |
f2abdc91 | 44 | return EFI_SUCCESS;\r |
45 | }\r |