projects / mirror_edk2.git / blame
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|---|---|---|
| d24f2876 JJ |
1 | ;/** @file\r |
| 2 | ;\r | |
| 3 | ; IDT vector entry.\r | |
| 4 | ;\r | |
| 5 | ; Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>\r | |
| 6 | ; This program and the accompanying materials\r | |
| 7 | ; are licensed and made available under the terms and conditions of the BSD License\r | |
| 8 | ; which accompanies this distribution. The full text of the license may be found at\r | |
| 9 | ; http://opensource.org/licenses/bsd-license.php\r | |
| 10 | ;\r | |
| 11 | ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
| 12 | ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
| 13 | ;\r | |
| 14 | ;**/\r | |
| 15 | \r | |
| 16 | SECTION .text\r | |
| 17 | \r | |
| 18 | ;\r | |
| 19 | ;------------------------------------------------------------------------------\r | |
| 20 | ; Generic IDT Vector Handlers for the Host.\r | |
| 21 | ;\r | |
| 22 | ;------------------------------------------------------------------------------\r | |
| 23 | \r | |
| 24 | ALIGN 8\r | |
| 25 | global ASM_PFX(AsmGetVectorTemplatInfo)\r | |
| 26 | global ASM_PFX(AsmVectorFixup)\r | |
| 27 | \r | |
| 28 | @VectorTemplateBase:\r | |
| 29 | push eax\r | |
| 30 | db 0x6a ; push #VectorNumber\r | |
| 31 | @VectorNum:\r | |
| 32 | db 0\r | |
| 33 | mov eax, CommonInterruptEntry\r | |
| 34 | jmp eax\r | |
| 35 | @VectorTemplateEnd:\r | |
| 36 | \r | |
| 37 | global ASM_PFX(AsmGetVectorTemplatInfo)\r | |
| 38 | ASM_PFX(AsmGetVectorTemplatInfo):\r | |
| 39 | mov ecx, [esp + 4]\r | |
| 40 | mov dword [ecx], @VectorTemplateBase\r | |
| 41 | mov eax, (@VectorTemplateEnd - @VectorTemplateBase)\r | |
| 42 | ret\r | |
| 43 | \r | |
| 44 | global ASM_PFX(AsmVectorFixup)\r | |
| 45 | ASM_PFX(AsmVectorFixup):\r | |
| 46 | mov eax, dword [esp + 8]\r | |
| 47 | mov ecx, [esp + 4]\r | |
| 48 | mov [ecx + (@VectorNum - @VectorTemplateBase)], al\r | |
| 49 | ret\r | |
| 50 | \r | |
| 51 | ;---------------------------------------;\r | |
| 52 | ; CommonInterruptEntry ;\r | |
| 53 | ;---------------------------------------;\r | |
| 54 | ; The follow algorithm is used for the common interrupt routine.\r | |
| 55 | \r | |
| 56 | ;\r | |
| 57 | ; +---------------------+ <-- 16-byte aligned ensured by processor\r | |
| 58 | ; + Old SS +\r | |
| 59 | ; +---------------------+\r | |
| 60 | ; + Old RSP +\r | |
| 61 | ; +---------------------+\r | |
| 62 | ; + RFlags +\r | |
| 63 | ; +---------------------+\r | |
| 64 | ; + CS +\r | |
| 65 | ; +---------------------+\r | |
| 66 | ; + RIP +\r | |
| 67 | ; +---------------------+\r | |
| 68 | ; + Error Code +\r | |
| 69 | ; +---------------------+\r | |
| 70 | ; + Vector Number +\r | |
| 71 | ; +---------------------+\r | |
| 72 | \r | |
| 73 | CommonInterruptEntry:\r | |
| 74 | cli\r | |
| 75 | \r | |
| 76 | jmp $\r | |
| 77 | \r |