| 96226baa |
1 | #/**@file\r |
| 2 | # IDT vector entry.\r |
| 3 | #\r |
| 4 | # Copyright (c) 2007 - 2008, Intel Corporation\r |
| 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 |
| 13 | #**/\r |
| 5d582956 |
14 | \r |
| 15 | .text\r |
| 16 | .code32\r |
| 17 | \r |
| 18 | \r |
| 19 | .align 8\r |
| 20 | .globl ASM_PFX(AsmGetVectorTemplatInfo)\r |
| 21 | .globl ASM_PFX(AsmVectorFixup)\r |
| 22 | /*\r |
| 23 | ;\r |
| 24 | ;-----------------------------------------------------------------------\r |
| 25 | ; Template of IDT Vector Handlers. \r |
| 26 | ;\r |
| 27 | ;-----------------------------------------------------------------------\r |
| 28 | */\r |
| 29 | @VectorTemplateBase:\r |
| 30 | pushl %eax\r |
| 31 | .byte 0x6a # push #VectorNum\r |
| 32 | @VectorNum:\r |
| 33 | .byte 0\r |
| 34 | movl CommonInterruptEntry, %eax\r |
| 35 | jmp *%eax\r |
| 36 | @VectorTemplateEnd:\r |
| 37 | \r |
| 38 | \r |
| 39 | ASM_PFX(AsmGetVectorTemplatInfo):\r |
| 40 | movl 4(%esp), %ecx\r |
| 41 | movl $@VectorTemplateBase, (%ecx)\r |
| 42 | movl $(@VectorTemplateEnd - @VectorTemplateBase), %eax\r |
| 43 | ret\r |
| 44 | \r |
| 45 | ASM_PFX(AsmVectorFixup):\r |
| 46 | movl 8(%esp), %eax\r |
| 47 | movl 4(%esp), %ecx\r |
| 48 | movb %al, (@VectorNum - @VectorTemplateBase)(%ecx)\r |
| 49 | ret\r |
| 50 | \r |
| 51 | /*\r |
| 52 | ; The follow algorithm is used for the common interrupt routine.\r |
| 53 | \r |
| 54 | ;\r |
| 55 | ; +---------------------+ <-- 16-byte aligned ensured by processor\r |
| 56 | ; + Old SS +\r |
| 57 | ; +---------------------+\r |
| 58 | ; + Old RSP +\r |
| 59 | ; +---------------------+\r |
| 60 | ; + RFlags +\r |
| 61 | ; +---------------------+\r |
| 62 | ; + CS +\r |
| 63 | ; +---------------------+\r |
| 64 | ; + RIP +\r |
| 65 | ; +---------------------+\r |
| 66 | ; + Error Code +\r |
| 67 | ; +---------------------+\r |
| 68 | ; + Vector Number +\r |
| 69 | ; +---------------------+\r |
| 70 | */\r |
| 71 | \r |
| 72 | CommonInterruptEntry: \r |
| 73 | cli\r |
| 74 | @@:\r |
| 75 | jmp @@\r |
| 76 | \r |
| 77 | \r |
| 78 | \r |
| 79 | \r |
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