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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 |