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 | |
| 5 | ; 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 | |
| 13 | \r | |
| 14 | SECTION .text\r | |
| 15 | \r | |
| 16 | ;\r | |
| 17 | ; Following functions will be provided in C\r | |
| 18 | ;\r | |
| 19 | extern ASM_PFX(Loader2PeiSwitchStack)\r | |
| 20 | extern ASM_PFX(FspApiCallingCheck)\r | |
| 21 | \r | |
| 22 | ;\r | |
| 23 | ; Following functions will be provided in ASM\r | |
| 24 | ;\r | |
| 25 | extern ASM_PFX(FspApiCommonContinue)\r | |
| 26 | extern ASM_PFX(AsmGetFspInfoHeader)\r | |
| 27 | \r | |
| 28 | ;----------------------------------------------------------------------------\r | |
| 29 | ; FspApiCommon API\r | |
| 30 | ;\r | |
| 31 | ; This is the FSP API common entry point to resume the FSP execution\r | |
| 32 | ;\r | |
| 33 | ;----------------------------------------------------------------------------\r | |
| 34 | global ASM_PFX(FspApiCommon)\r | |
| 35 | ASM_PFX(FspApiCommon):\r | |
| 36 | ;\r | |
| 37 | ; EAX holds the API index\r | |
| 38 | ;\r | |
| 39 | \r | |
| 40 | ;\r | |
| 41 | ; Stack must be ready\r | |
| 42 | ;\r | |
| 43 | push eax\r | |
| 44 | add esp, 4\r | |
| 45 | cmp eax, dword [esp - 4]\r | |
| 46 | jz FspApiCommon1\r | |
| 47 | mov eax, 080000003h\r | |
| 48 | jmp exit\r | |
| 49 | \r | |
| 50 | FspApiCommon1:\r | |
| 51 | ;\r | |
| 52 | ; Verify the calling condition\r | |
| 53 | ;\r | |
| 54 | pushad\r | |
| 55 | push DWORD [esp + (4 * 8 + 4)] ; push ApiParam\r | |
| 56 | push eax ; push ApiIdx\r | |
| 57 | call ASM_PFX(FspApiCallingCheck)\r | |
| 58 | add esp, 8\r | |
| 59 | cmp eax, 0\r | |
| 60 | jz FspApiCommon2\r | |
| 61 | mov dword [esp + (4 * 7)], eax\r | |
| 62 | popad\r | |
| 63 | exit:\r | |
| 64 | ret\r | |
| 65 | \r | |
| 66 | FspApiCommon2:\r | |
| 67 | popad\r | |
| 68 | cmp eax, 3 ; FspMemoryInit API\r | |
| 69 | jz FspApiCommon3\r | |
| 70 | \r | |
| 71 | call ASM_PFX(AsmGetFspInfoHeader)\r | |
| 72 | jmp ASM_PFX(Loader2PeiSwitchStack)\r | |
| 73 | \r | |
| 74 | FspApiCommon3:\r | |
| 75 | jmp ASM_PFX(FspApiCommonContinue)\r | |
| 76 | \r |