From: Jeff Fan <jeff.fan@intel.com>
Date: Fri, 25 Sep 2015 06:29:51 +0000 (+0000)
Subject: UefiCpuPkg/CpuMpPei: Fix wrong CpuData pointer
X-Git-Tag: edk2-stable201903~8811
X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=28f27af6f007c3794fcc9d098ef91713160f4e5b

UefiCpuPkg/CpuMpPei: Fix wrong CpuData pointer

CpuData buffer should be located in allocated buffer instead of at end of
WakeupBuffer.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Star Zeng <star.zeng@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18550 6f19259b-4bc3-4df7-8a09-765794883524
---

diff --git a/UefiCpuPkg/CpuMpPei/CpuMpPei.c b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
index 81d5b19fca..d5bc0c9b80 100644
--- a/UefiCpuPkg/CpuMpPei/CpuMpPei.c
+++ b/UefiCpuPkg/CpuMpPei/CpuMpPei.c
@@ -428,7 +428,8 @@ PrepareAPStartupVector (
 
   PeiCpuMpData->CpuCount                 = 1;
   PeiCpuMpData->BspNumber                = 0;
-  PeiCpuMpData->CpuData                  = (PEI_CPU_DATA *) (PeiCpuMpData->MpCpuExchangeInfo + 1);
+  PeiCpuMpData->CpuData                  = (PEI_CPU_DATA *) (PeiCpuMpData->BackupBuffer +
+                                                             PeiCpuMpData->BackupBufferSize);
   PeiCpuMpData->CpuData[0].ApicId        = GetInitialApicId ();
   PeiCpuMpData->CpuData[0].Health.Uint32 = 0;
   PeiCpuMpData->EndOfPeiFlag             = FALSE;