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#/** @file
#
# IDT vector entry.
#
# Copyright (c) 2007 - 2009, 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.
#
#**/
.text
.code32
.p2align 3
ASM_GLOBAL ASM_PFX(AsmGetVectorTemplatInfo)
ASM_GLOBAL ASM_PFX(AsmVectorFixup)
/*
;
;-----------------------------------------------------------------------
; Template of IDT Vector Handlers.
;
;-----------------------------------------------------------------------
*/
VectorTemplateBase:
pushl %eax
.byte 0x6a # push #VectorNum
VectorNum:
.byte 0
movl CommonInterruptEntry, %eax
jmp *%eax
VectorTemplateEnd:
ASM_PFX(AsmGetVectorTemplatInfo):
movl 4(%esp), %ecx
movl $VectorTemplateBase, (%ecx)
movl $(VectorTemplateEnd - VectorTemplateBase), %eax
ret
ASM_PFX(AsmVectorFixup):
movl 8(%esp), %eax
movl 4(%esp), %ecx
movb %al, (VectorNum - VectorTemplateBase)(%ecx)
ret
/*
; 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
1:
jmp 1b
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