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|
;/** @file
;
; IDT vector entry.
;
; Copyright (c) 2007 - 2016, Intel Corporation. All rights reserved.<BR>
; SPDX-License-Identifier: BSD-2-Clause-Patent
;
;**/
SECTION .text
;
;------------------------------------------------------------------------------
; Generic IDT Vector Handlers for the Host.
;
;------------------------------------------------------------------------------
ALIGN 8
global ASM_PFX(AsmGetVectorTemplatInfo)
global ASM_PFX(AsmVectorFixup)
@VectorTemplateBase:
push eax
db 0x6a ; push #VectorNumber
@VectorNum:
db 0
mov eax, CommonInterruptEntry
jmp eax
@VectorTemplateEnd:
global ASM_PFX(AsmGetVectorTemplatInfo)
ASM_PFX(AsmGetVectorTemplatInfo):
mov ecx, [esp + 4]
mov dword [ecx], @VectorTemplateBase
mov eax, (@VectorTemplateEnd - @VectorTemplateBase)
ret
global ASM_PFX(AsmVectorFixup)
ASM_PFX(AsmVectorFixup):
mov eax, dword [esp + 8]
mov ecx, [esp + 4]
mov [ecx + (@VectorNum - @VectorTemplateBase)], al
ret
;---------------------------------------;
; CommonInterruptEntry ;
;---------------------------------------;
; The follow algorithm is used for the common interrupt routine.
;
; +---------------------+ <-- 16-byte aligned ensured by processor
; + Old SS +
; +---------------------+
; + Old RSP +
; +---------------------+
; + RFlags +
; +---------------------+
; + CS +
; +---------------------+
; + RIP +
; +---------------------+
; + Error Code +
; +---------------------+
; + Vector Number +
; +---------------------+
CommonInterruptEntry:
cli
jmp $
|
