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UefiCpuPkg/CpuMpPei/Ia32: Use CodeSegment and DataSegment fields 

Using CodeSegment and DataSegment fields in ExchangeInfo instead of the hardcode
MACROs.

Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Giri Mudusuru <giri.p.mudusuru@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Giri P Mudusuru <giri.p.mudusuru@intel.com>
This commit is contained in:
Jeff Fan 2016-07-11 13:21:10 +08:00
parent ed04bffe75
commit aad5ee4899
2 changed files with 48 additions and 34 deletions
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54
UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.asm
View File

@ -1,5 +1,5 @@
;------------------------------------------------------------------------------ ;
; Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
; Copyright (c) 2015 - 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
@ -39,25 +39,34 @@ RendezvousFunnelProcStart::
; Save BIST information to ebp firstly
db 66h, 08bh, 0e8h ; mov ebp, eax ; save BIST information
db 8ch,0c8h ; mov ax,cs
db 8eh,0d8h ; mov ds,ax
db 8eh,0c0h ; mov es,ax
db 8eh,0d0h ; mov ss,ax
db 33h,0c0h ; xor ax,ax
db 8eh,0e0h ; mov fs,ax
db 8eh,0e8h ; mov gs,ax
db 8ch,0c8h ; mov ax, cs
db 8eh,0d8h ; mov ds, ax
db 8eh,0c0h ; mov es, ax
db 8eh,0d0h ; mov ss, ax
db 33h,0c0h ; xor ax, ax
db 8eh,0e0h ; mov fs, ax
db 8eh,0e8h ; mov gs, ax
db 0BEh ; opcode of mov si, mem16
dw BufferStartLocation ; mov si, BufferStartLocation
db 66h, 8Bh, 1Ch ; mov ebx,dword ptr [si]
db 66h, 8Bh, 1Ch ; mov ebx, dword ptr [si]
db 0BFh ; opcode of mov di, mem16
dw PmodeOffsetLocation ; mov di, PmodeOffsetLocation
db 66h, 8Bh, 05h ; mov eax,dword ptr [di]
db 8Bh, 0F8h ; mov di, ax
db 83h, 0EFh,06h ; sub di, 06h
db 66h, 03h, 0C3h ; add eax, ebx
db 66h, 89h, 05h ; mov dword ptr [di],eax
db 0BEh ; opcode of mov si, mem16
dw PmodeOffsetLocation ; mov si, PmodeOffsetLocation
db 66h, 8Bh, 04h ; mov eax, [si]
db 0BEh ; opcode of mov si, mem16
dw CodeSegmentLocation ; mov si, CodeSegmentLocation
db 66h, 8Bh, 14h ; mov edx, [si]
db 89h, 0C7h ; mov di, ax
db 83h, 0EFh, 02h ; sub di, 02h
db 89h, 15h ; mov [di], dx
db 83h, 0EFh, 04h ; sub di, 04h
db 66h, 01h, 0D8h ; add eax, ebx
db 66h, 89h, 05h ; mov [di], eax
db 0BEh ; opcode of mov si, mem16
dw DataSegmentLocation ; mov si, DataSegmentLocation
db 66h, 8Bh, 14h ; mov edx, [si]
db 0BEh ; opcode of mov si, mem16
dw GdtrLocation ; mov si, GdtrLocation
@ -78,15 +87,14 @@ RendezvousFunnelProcStart::
db 66h, 67h, 0EAh ; far jump
dd 0h ; 32-bit offset
dw PROTECT_MODE_CS ; 16-bit selector
dw 0h ; 16-bit selector
Flat32Start:: ; protected mode entry point
mov ax, PROTECT_MODE_DS
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
mov ds, dx
mov es, dx
mov fs, dx
mov gs, dx
mov ss, dx
mov esi, ebx
mov edi, esi

28
UefiCpuPkg/CpuMpPei/Ia32/MpFuncs.nasm
View File

@ -1,5 +1,5 @@
;------------------------------------------------------------------------------ ;
; Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
; Copyright (c) 2015 - 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
@ -48,13 +48,20 @@ BITS 16
mov si, BufferStartLocation
mov ebx, [si]
mov di, PmodeOffsetLocation
mov eax, [di]
mov si, PmodeOffsetLocation
mov eax, [si]
mov si, CodeSegmentLocation
mov edx, [si]
mov di, ax
sub di, 06h
sub di, 02h
mov [di], dx
sub di, 04h
add eax, ebx
mov [di],eax
mov si, DataSegmentLocation
mov edx, [si]
mov si, GdtrLocation
o32 lgdt [cs:si]
@ -68,15 +75,14 @@ o32 lidt [cs:si]
or eax, 000000003h ;Set PE bit (bit #0) & MP
mov cr0, eax
jmp PROTECT_MODE_CS:strict dword 0 ; far jump to protected mode
jmp 0:strict dword 0 ; far jump to protected mode
BITS 32
Flat32Start: ; protected mode entry point
mov ax, PROTECT_MODE_DS
mov ds, ax
mov es, ax
mov fs, ax
mov gs, ax
mov ss, ax
mov ds, dx
mov es, dx
mov fs, dx
mov gs, dx
mov ss, dx
mov esi, ebx
mov edi, esi