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0199f24f LG |
1 | ;; @file\r |
2 | ; Interrupt Redirection Template\r | |
3 | ;\r | |
4 | ; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR>\r | |
5 | ;\r | |
c0a00b14 | 6 | ; SPDX-License-Identifier: BSD-2-Clause-Patent\r |
0199f24f LG |
7 | ;\r |
8 | ;;\r | |
9 | \r | |
10 | SECTION .text\r | |
11 | \r | |
12 | ;----------------------------------------------------------------------------\r | |
13 | ; Procedure: InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F\r | |
14 | ;\r | |
15 | ; Input: None\r | |
16 | ;\r | |
17 | ; Output: None\r | |
18 | ;\r | |
19 | ; Prototype: VOID\r | |
20 | ; InterruptRedirectionTemplate (\r | |
21 | ; VOID\r | |
22 | ; );\r | |
23 | ;\r | |
24 | ; Saves: None\r | |
25 | ;\r | |
26 | ; Modified: None\r | |
27 | ;\r | |
28 | ; Description: Contains the code that is copied into low memory (below 640K).\r | |
29 | ; This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f.\r | |
30 | ; This template must be copied into low memory, and the IDT entries\r | |
31 | ; 0x68-0x6F must be point to the low memory copy of this code. Each\r | |
32 | ; entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily\r | |
33 | ; computed.\r | |
34 | ;\r | |
35 | ;----------------------------------------------------------------------------\r | |
36 | \r | |
37 | global ASM_PFX(InterruptRedirectionTemplate)\r | |
38 | ASM_PFX(InterruptRedirectionTemplate):\r | |
39 | int 0x8\r | |
40 | DB 0xcf ; IRET\r | |
41 | nop\r | |
42 | int 0x9\r | |
43 | DB 0xcf ; IRET\r | |
44 | nop\r | |
45 | int 0xa\r | |
46 | DB 0xcf ; IRET\r | |
47 | nop\r | |
48 | int 0xb\r | |
49 | DB 0xcf ; IRET\r | |
50 | nop\r | |
51 | int 0xc\r | |
52 | DB 0xcf ; IRET\r | |
53 | nop\r | |
54 | int 0xd\r | |
55 | DB 0xcf ; IRET\r | |
56 | nop\r | |
57 | int 0xe\r | |
58 | DB 0xcf ; IRET\r | |
59 | nop\r | |
60 | int 0xf\r | |
61 | DB 0xcf ; IRET\r | |
62 | nop\r | |
63 | \r |