projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| 5c08e117 | 1 | /** @file\r |
| 2 | Shadow all option rom\r | |
| 3 | \r | |
| 180a5a35 HT |
4 | Copyright (c) 2004 - 2010, Intel Corporation. All rights reserved.<BR>\r |
| 5 | This program and the accompanying materials\r | |
| 5c08e117 | 6 | are licensed and made available under the terms and conditions of the BSD License\r |
| 7 | which accompanies this distribution. The full text of the license may be found at\r | |
| 8 | http://opensource.org/licenses/bsd-license.php\r | |
| 9 | \r | |
| 10 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 11 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 12 | \r | |
| 13 | **/\r | |
| 14 | \r | |
| 15 | #include "InternalBdsLib.h"\r | |
| 16 | \r | |
| 17 | UINT8 mShadowRomFlag = 0;\r | |
| 18 | \r | |
| 19 | /**\r | |
| 20 | Shadow all opton ROM if the it is not done.\r | |
| 21 | **/\r | |
| 22 | VOID\r | |
| 8e8ae2da | 23 | EFIAPI\r |
| 5c08e117 | 24 | ShadowAllOptionRom(\r |
| 25 | VOID\r | |
| 26 | )\r | |
| 27 | {\r | |
| 28 | EFI_STATUS Status;\r | |
| 29 | EFI_LEGACY_BIOS_PROTOCOL *LegacyBios;\r | |
| 30 | //\r | |
| 31 | // Rom shadow only do once.\r | |
| 32 | //\r | |
| 33 | if (mShadowRomFlag == 0) {\r | |
| 34 | Status = gBS->LocateProtocol (\r | |
| 35 | &gEfiLegacyBiosProtocolGuid,\r | |
| 36 | NULL,\r | |
| 37 | (VOID **) &LegacyBios\r | |
| 38 | );\r | |
| 39 | if (!EFI_ERROR (Status)) {\r | |
| 40 | LegacyBios->PrepareToBootEfi (LegacyBios, NULL, NULL);\r | |
| 41 | }\r | |
| 42 | \r | |
| 43 | mShadowRomFlag = 1;\r | |
| 44 | }\r | |
| 45 | \r | |
| 46 | return ;\r | |
| 47 | }\r |