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UefiCpuPkg/CpuMpPei: Fix pack(1) issue on x64 arch 

Packing alignment for MP_CPU_EXCHANGE_INFO should be 1. This should be typo when
check-in CpuMpPei driver. IA32 arch MP_CPU_EXCHANGE_INFO is luckly pack(1). It
leads CpuMpPei x64 version hung.

Contributed-under: TianoCore Contribution Agreement 1.0
Reported-by: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Tested-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@19340 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Jeff Fan 2015-12-18 03:22:56 +00:00 committed by vanjeff
parent bd6bb560a4
commit d603b1151c
1 changed files with 3 additions and 1 deletions
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4
UefiCpuPkg/CpuMpPei/CpuMpPei.h
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@ -72,7 +72,7 @@ typedef struct {
typedef struct _PEI_CPU_MP_DATA PEI_CPU_MP_DATA;
#pragma pack()
#pragma pack(1)
typedef union {
struct {
@ -95,6 +95,8 @@ typedef union {
//
// MP CPU exchange information for AP reset code
// This structure is required to be packed because fixed field offsets
// into this structure are used in assembly code in this module
//
typedef struct {
UINTN Lock;