projects / mirror_edk2.git / blame
| Commit | Line | Data |
|---|---|---|
| e4404f8b 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 |
| e4404f8b LG |
7 | ;\r |
| 8 | ;;\r | |
| 9 | \r | |
| 10 | DEFAULT REL\r | |
| 11 | SECTION .text\r | |
| 12 | \r | |
| 13 | ;----------------------------------------------------------------------------\r | |
| 14 | ; Procedure: InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F\r | |
| 15 | ;\r | |
| 16 | ; Input: None\r | |
| 17 | ;\r | |
| 18 | ; Output: None\r | |
| 19 | ;\r | |
| 20 | ; Prototype: VOID\r | |
| 21 | ; InterruptRedirectionTemplate (\r | |
| 22 | ; VOID\r | |
| 23 | ; );\r | |
| 24 | ;\r | |
| 25 | ; Saves: None\r | |
| 26 | ;\r | |
| 27 | ; Modified: None\r | |
| 28 | ;\r | |
| 29 | ; Description: Contains the code that is copied into low memory (below 640K).\r | |
| 30 | ; This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f.\r | |
| 31 | ; This template must be copied into low memory, and the IDT entries\r | |
| 32 | ; 0x68-0x6F must be point to the low memory copy of this code. Each\r | |
| 33 | ; entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily\r | |
| 34 | ; computed.\r | |
| 35 | ;\r | |
| 36 | ;----------------------------------------------------------------------------\r | |
| 37 | \r | |
| 38 | global ASM_PFX(InterruptRedirectionTemplate)\r | |
| 39 | ASM_PFX(InterruptRedirectionTemplate):\r | |
| 40 | int 0x8\r | |
| 41 | DB 0xcf ; IRET\r | |
| 42 | nop\r | |
| 43 | int 0x9\r | |
| 44 | DB 0xcf ; IRET\r | |
| 45 | nop\r | |
| 46 | int 0xa\r | |
| 47 | DB 0xcf ; IRET\r | |
| 48 | nop\r | |
| 49 | int 0xb\r | |
| 50 | DB 0xcf ; IRET\r | |
| 51 | nop\r | |
| 52 | int 0xc\r | |
| 53 | DB 0xcf ; IRET\r | |
| 54 | nop\r | |
| 55 | int 0xd\r | |
| 56 | DB 0xcf ; IRET\r | |
| 57 | nop\r | |
| 58 | int 0xe\r | |
| 59 | DB 0xcf ; IRET\r | |
| 60 | nop\r | |
| 61 | int 0xf\r | |
| 62 | DB 0xcf ; IRET\r | |
| 63 | nop\r | |
| 64 | \r |