;; @file ; Interrupt Redirection Template ; ; Copyright (c) 2016, Intel Corporation. All rights reserved.<BR> ; ; This program and the accompanying materials ; are licensed and made available under the terms and conditions ; of the BSD License which accompanies this distribution. The ; full text of the license may be found at ; http://opensource.org/licenses/bsd-license.php ; ; THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, ; WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. ; ;; SECTION .text ;---------------------------------------------------------------------------- ; Procedure: InterruptRedirectionTemplate: Redirects interrupts 0x68-0x6F ; ; Input: None ; ; Output: None ; ; Prototype: VOID ; InterruptRedirectionTemplate ( ; VOID ; ); ; ; Saves: None ; ; Modified: None ; ; Description: Contains the code that is copied into low memory (below 640K). ; This code reflects interrupts 0x68-0x6f to interrupts 0x08-0x0f. ; This template must be copied into low memory, and the IDT entries ; 0x68-0x6F must be point to the low memory copy of this code. Each ; entry is 4 bytes long, so IDT entries 0x68-0x6F can be easily ; computed. ; ;---------------------------------------------------------------------------- global ASM_PFX(InterruptRedirectionTemplate) ASM_PFX(InterruptRedirectionTemplate): int 0x8 DB 0xcf ; IRET nop int 0x9 DB 0xcf ; IRET nop int 0xa DB 0xcf ; IRET nop int 0xb DB 0xcf ; IRET nop int 0xc DB 0xcf ; IRET nop int 0xd DB 0xcf ; IRET nop int 0xe DB 0xcf ; IRET nop int 0xf DB 0xcf ; IRET nop