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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 | |
9d510e61 | 6 | ; SPDX-License-Identifier: BSD-2-Clause-Patent\r |
d24f2876 JJ |
7 | ;\r |
8 | ;**/\r | |
9 | \r | |
10 | SECTION .text\r | |
11 | \r | |
12 | ;\r | |
13 | ;------------------------------------------------------------------------------\r | |
14 | ; Generic IDT Vector Handlers for the Host.\r | |
15 | ;\r | |
16 | ;------------------------------------------------------------------------------\r | |
17 | \r | |
18 | ALIGN 8\r | |
19 | global ASM_PFX(AsmGetVectorTemplatInfo)\r | |
20 | global ASM_PFX(AsmVectorFixup)\r | |
21 | \r | |
22 | @VectorTemplateBase:\r | |
23 | push eax\r | |
24 | db 0x6a ; push #VectorNumber\r | |
25 | @VectorNum:\r | |
26 | db 0\r | |
27 | mov eax, CommonInterruptEntry\r | |
28 | jmp eax\r | |
29 | @VectorTemplateEnd:\r | |
30 | \r | |
31 | global ASM_PFX(AsmGetVectorTemplatInfo)\r | |
32 | ASM_PFX(AsmGetVectorTemplatInfo):\r | |
33 | mov ecx, [esp + 4]\r | |
34 | mov dword [ecx], @VectorTemplateBase\r | |
35 | mov eax, (@VectorTemplateEnd - @VectorTemplateBase)\r | |
36 | ret\r | |
37 | \r | |
38 | global ASM_PFX(AsmVectorFixup)\r | |
39 | ASM_PFX(AsmVectorFixup):\r | |
40 | mov eax, dword [esp + 8]\r | |
41 | mov ecx, [esp + 4]\r | |
42 | mov [ecx + (@VectorNum - @VectorTemplateBase)], al\r | |
43 | ret\r | |
44 | \r | |
45 | ;---------------------------------------;\r | |
46 | ; CommonInterruptEntry ;\r | |
47 | ;---------------------------------------;\r | |
48 | ; The follow algorithm is used for the common interrupt routine.\r | |
49 | \r | |
50 | ;\r | |
51 | ; +---------------------+ <-- 16-byte aligned ensured by processor\r | |
52 | ; + Old SS +\r | |
53 | ; +---------------------+\r | |
54 | ; + Old RSP +\r | |
55 | ; +---------------------+\r | |
56 | ; + RFlags +\r | |
57 | ; +---------------------+\r | |
58 | ; + CS +\r | |
59 | ; +---------------------+\r | |
60 | ; + RIP +\r | |
61 | ; +---------------------+\r | |
62 | ; + Error Code +\r | |
63 | ; +---------------------+\r | |
64 | ; + Vector Number +\r | |
65 | ; +---------------------+\r | |
66 | \r | |
67 | CommonInterruptEntry:\r | |
68 | cli\r | |
69 | \r | |
70 | jmp $\r | |
71 | \r |