| 657d3918 |
1 | /*++\r |
| 2 | \r |
| 3 | Copyright (c) 2006, Intel Corporation\r |
| 4 | All rights reserved. This program and the accompanying materials\r |
| 5 | are licensed and made available under the terms and conditions of the BSD License\r |
| 6 | which accompanies this distribution. The full text of the license may be found at\r |
| 7 | http://opensource.org/licenses/bsd-license.php\r |
| 8 | \r |
| 9 | THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r |
| 10 | WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r |
| 11 | \r |
| 12 | Module Name:\r |
| 13 | \r |
| 14 | DxeLoadFunc.c\r |
| 15 | \r |
| 16 | Abstract:\r |
| 17 | \r |
| 18 | Ia32-specifc functionality for DxeLoad.\r |
| 19 | \r |
| 20 | --*/\r |
| 21 | \r |
| 22 | #include "DxeIpl.h"\r |
| 23 | \r |
| 24 | VOID\r |
| 25 | HandOffToDxeCore (\r |
| 26 | IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,\r |
| 27 | IN EFI_PEI_HOB_POINTERS HobList\r |
| 28 | )\r |
| 29 | {\r |
| 30 | VOID *BaseOfStack;\r |
| 31 | VOID *TopOfStack;\r |
| 32 | \r |
| 33 | //\r |
| 34 | // Allocate 128KB for the Stack\r |
| 35 | //\r |
| 36 | BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));\r |
| 37 | ASSERT (BaseOfStack != NULL);\r |
| 38 | \r |
| 39 | //\r |
| 40 | // Compute the top of the stack we were allocated. Pre-allocate a UINTN\r |
| 41 | // for safety.\r |
| 42 | //\r |
| 43 | TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);\r |
| 44 | TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);\r |
| 45 | \r |
| 46 | SwitchStack (\r |
| 47 | (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,\r |
| 48 | HobList.Raw,\r |
| 49 | NULL,\r |
| 50 | TopOfStack\r |
| 51 | );\r |
| 52 | }\r |
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