From: Jeff Fan <jeff.fan@intel.com>
Date: Mon, 11 Jul 2016 05:08:06 +0000 (+0800)
Subject: UefiCpuPkg/CpuMpPei: Add CodeSegment and DataSegment fields
X-Git-Tag: edk2-stable201903~6320
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=ed04bffe7517f42f94ec4eebcf9003cd6a9dd6fb

UefiCpuPkg/CpuMpPei: Add CodeSegment and DataSegment fields

Added CodeSegment and DataSegment fields in MP_CPU_EXCHANGE_INFO. They are set
to the values of current BSP's CS and DS.

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>
---

diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
index bccff24cc1..9b602a1906 100644
--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c
+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
@@ -455,6 +455,8 @@ WakeUpAP (
   ExchangeInfo->PmodeOffset        = PeiCpuMpData->AddressMap.PModeEntryOffset;
   ExchangeInfo->LmodeOffset        = PeiCpuMpData->AddressMap.LModeEntryOffset;
   ExchangeInfo->Cr3                = AsmReadCr3 ();
+  ExchangeInfo->CodeSegment        = AsmReadCs ();
+  ExchangeInfo->DataSegment        = AsmReadDs ();
   ExchangeInfo->CFunction          = (UINTN) ApCFunction;
   ExchangeInfo->NumApsExecuting    = 0;
   ExchangeInfo->PeiCpuMpData       = PeiCpuMpData;
diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.h b/UefiCpuPkg/CpuMpPei/CpuMpPei.h
index 5e56934a27..4c114decb6 100644
--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.h
+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.h
@@ -119,6 +119,8 @@ typedef struct {
   UINTN                 BufferStart;
   UINTN                 PmodeOffset;
   UINTN                 NumApsExecuting;
+  UINTN                 CodeSegment;
+  UINTN                 DataSegment;
   UINTN                 LmodeOffset;
   UINTN                 Cr3;
   PEI_CPU_MP_DATA       *PeiCpuMpData;
diff --git a/UefiCpuPkg/CpuMpPei/Ia32/MpEqu.inc b/UefiCpuPkg/CpuMpPei/Ia32/MpEqu.inc
index fc637cc70f..a88185ed08 100644
--- a/UefiCpuPkg/CpuMpPei/Ia32/MpEqu.inc
+++ b/UefiCpuPkg/CpuMpPei/Ia32/MpEqu.inc
@@ -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
@@ -37,4 +37,6 @@ IdtrLocation                  equ        LockLocation + 16h
 BufferStartLocation           equ        LockLocation + 1Ch
 PmodeOffsetLocation           equ        LockLocation + 20h
 NumApsExecutingLoction        equ        LockLocation + 24h
+CodeSegmentLocation           equ        LockLocation + 28h
+DataSegmentLocation           equ        LockLocation + 2Ch
 
diff --git a/UefiCpuPkg/CpuMpPei/X64/MpEqu.inc b/UefiCpuPkg/CpuMpPei/X64/MpEqu.inc
index ab851cf3e7..30c7f6110b 100644
--- a/UefiCpuPkg/CpuMpPei/X64/MpEqu.inc
+++ b/UefiCpuPkg/CpuMpPei/X64/MpEqu.inc
@@ -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
@@ -39,7 +39,9 @@ IdtrLocation                  equ        LockLocation + 2Ah
 BufferStartLocation           equ        LockLocation + 34h
 PmodeOffsetLocation           equ        LockLocation + 3Ch
 NumApsExecutingLoction        equ        LockLocation + 44h
-LmodeOffsetLocation           equ        LockLocation + 4Ch
-Cr3Location                   equ        LockLocation + 54h
+CodeSegmentLocation           equ        LockLocation + 4Ch
+DataSegmentLocation           equ        LockLocation + 54h
+LmodeOffsetLocation           equ        LockLocation + 5Ch
+Cr3Location                   equ        LockLocation + 64h
 
 ;-------------------------------------------------------------------------------