projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| cf1d4549 JY |
1 | ;; @file\r |
| 2 | ; Provide FSP API entry points.\r | |
| 3 | ;\r | |
| 4 | ; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
| 9672cd30 | 5 | ; SPDX-License-Identifier: BSD-2-Clause-Patent\r |
| cf1d4549 JY |
6 | ;;\r |
| 7 | \r | |
| 8 | SECTION .text\r | |
| 9 | \r | |
| 10 | ;\r | |
| 11 | ; Following functions will be provided in C\r | |
| 12 | ;\r | |
| 13 | extern ASM_PFX(Loader2PeiSwitchStack)\r | |
| 14 | extern ASM_PFX(FspApiCallingCheck)\r | |
| 15 | \r | |
| 16 | ;\r | |
| 17 | ; Following functions will be provided in ASM\r | |
| 18 | ;\r | |
| 19 | extern ASM_PFX(FspApiCommonContinue)\r | |
| 20 | extern ASM_PFX(AsmGetFspInfoHeader)\r | |
| 21 | \r | |
| 22 | ;----------------------------------------------------------------------------\r | |
| 23 | ; FspApiCommon API\r | |
| 24 | ;\r | |
| 25 | ; This is the FSP API common entry point to resume the FSP execution\r | |
| 26 | ;\r | |
| 27 | ;----------------------------------------------------------------------------\r | |
| 28 | global ASM_PFX(FspApiCommon)\r | |
| 29 | ASM_PFX(FspApiCommon):\r | |
| 30 | ;\r | |
| 31 | ; EAX holds the API index\r | |
| 32 | ;\r | |
| 33 | \r | |
| 34 | ;\r | |
| 35 | ; Stack must be ready\r | |
| 36 | ;\r | |
| 37 | push eax\r | |
| 38 | add esp, 4\r | |
| 39 | cmp eax, dword [esp - 4]\r | |
| 40 | jz FspApiCommon1\r | |
| 41 | mov eax, 080000003h\r | |
| 42 | jmp exit\r | |
| 43 | \r | |
| 44 | FspApiCommon1:\r | |
| 45 | ;\r | |
| 46 | ; Verify the calling condition\r | |
| 47 | ;\r | |
| 48 | pushad\r | |
| 49 | push DWORD [esp + (4 * 8 + 4)] ; push ApiParam\r | |
| 50 | push eax ; push ApiIdx\r | |
| 51 | call ASM_PFX(FspApiCallingCheck)\r | |
| 52 | add esp, 8\r | |
| 53 | cmp eax, 0\r | |
| 54 | jz FspApiCommon2\r | |
| 55 | mov dword [esp + (4 * 7)], eax\r | |
| 56 | popad\r | |
| 57 | exit:\r | |
| 58 | ret\r | |
| 59 | \r | |
| 60 | FspApiCommon2:\r | |
| 61 | popad\r | |
| 62 | cmp eax, 3 ; FspMemoryInit API\r | |
| 63 | jz FspApiCommon3\r | |
| 64 | \r | |
| 65 | call ASM_PFX(AsmGetFspInfoHeader)\r | |
| 66 | jmp ASM_PFX(Loader2PeiSwitchStack)\r | |
| 67 | \r | |
| 68 | FspApiCommon3:\r | |
| 69 | jmp ASM_PFX(FspApiCommonContinue)\r | |
| 70 | \r |