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1 | /** @file\r |
| 2 | Ipf-specifc functionality for DxeLoad.\r |
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3 | \r |
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4 | Copyright (c) 2006 - 2008, Intel Corporation. <BR>\r |
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5 | All rights reserved. This program and the accompanying materials\r |
| 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 |
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13 | **/\r |
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14 | \r |
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15 | #include "DxeIpl.h"\r |
| 16 | \r |
| 17 | VOID\r |
| 18 | HandOffToDxeCore (\r |
| 19 | IN EFI_PHYSICAL_ADDRESS DxeCoreEntryPoint,\r |
| 20 | IN EFI_PEI_HOB_POINTERS HobList,\r |
| 21 | IN EFI_PEI_PPI_DESCRIPTOR *EndOfPeiSignal\r |
| 22 | )\r |
| 23 | {\r |
| 24 | VOID *BaseOfStack;\r |
| 25 | VOID *TopOfStack;\r |
| 26 | VOID *BspStore;\r |
| 27 | EFI_STATUS Status;\r |
| 28 | \r |
| 29 | //\r |
| 30 | // Allocate 128KB for the Stack\r |
| 31 | //\r |
| 32 | BaseOfStack = AllocatePages (EFI_SIZE_TO_PAGES (STACK_SIZE));\r |
| 33 | ASSERT (BaseOfStack != NULL);\r |
| 34 | \r |
| 35 | //\r |
| 36 | // Allocate 16KB for the BspStore\r |
| 37 | //\r |
| 38 | BspStore = AllocatePages (EFI_SIZE_TO_PAGES (BSP_STORE_SIZE));\r |
| 39 | ASSERT (BspStore != NULL);\r |
| 40 | //\r |
| 41 | // Build BspStoreHob\r |
| 42 | //\r |
| 43 | BuildBspStoreHob ((EFI_PHYSICAL_ADDRESS) (UINTN) BspStore, BSP_STORE_SIZE, EfiBootServicesData);\r |
| 44 | \r |
| 45 | //\r |
| 46 | // Compute the top of the stack we were allocated. Pre-allocate a UINTN\r |
| 47 | // for safety.\r |
| 48 | //\r |
| 49 | TopOfStack = (VOID *) ((UINTN) BaseOfStack + EFI_SIZE_TO_PAGES (STACK_SIZE) * EFI_PAGE_SIZE - CPU_STACK_ALIGNMENT);\r |
| 50 | TopOfStack = ALIGN_POINTER (TopOfStack, CPU_STACK_ALIGNMENT);\r |
| 51 | \r |
| 52 | //\r |
| 53 | // End of PEI phase singal\r |
| 54 | //\r |
| 55 | Status = PeiServicesInstallPpi (EndOfPeiSignal);\r |
| 56 | ASSERT_EFI_ERROR (Status);\r |
| 57 | \r |
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58 | //\r |
| 59 | // Update the contents of BSP stack HOB to reflect the real stack info passed to DxeCore.\r |
| 60 | //\r |
| 61 | UpdateStackHob ((EFI_PHYSICAL_ADDRESS)(UINTN) BaseOfStack, STACK_SIZE);\r |
| 62 | \r |
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63 | SwitchStack (\r |
| 64 | (SWITCH_STACK_ENTRY_POINT)(UINTN)DxeCoreEntryPoint,\r |
| 65 | HobList.Raw,\r |
| 66 | NULL,\r |
| 67 | TopOfStack,\r |
| 68 | BspStore\r |
| 69 | );\r |
| 70 | }\r |
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