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audk/MdeModulePkg/Core/Dxe/DxeMain
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Hao Wu bce776a5b6 MdeModulePkg/DxeMain: Fix BSP interrupts reenabled in ExitBootServices 
Within function CoreExitBootServices(), this commit will move the call
of:

MemoryProtectionExitBootServicesCallback();

before:

SaveAndSetDebugTimerInterrupt (FALSE);
and
gCpu->DisableInterrupt (gCpu);

The reason is that, within MemoryProtectionExitBootServicesCallback(),
APIs like RaiseTpl and RestoreTpl maybe called. An example will be:

DebugLib (using PeiDxeDebugLibReportStatusCode instance)
 |
 v
ReportStatusCodeLib (using DxeReportStatusCodeLib instance)
 |
 v
Raise/RestoreTpl

The call of Raise/RestoreTpl APIs will re-enable BSP interrupts. Hence,
this commit refine the calling sequence to ensure BSP interrupts before
leaving CoreExitBootServices().

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Star Zeng <star.zeng@intel.com>
Cc: Eric Dong <eric.dong@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>
 		2018-03-20 15:54:15 +08:00
..
DxeMain.c MdeModulePkg/DxeMain: Fix BSP interrupts reenabled in ExitBootServices 2018-03-20 15:54:15 +08:00
DxeProtocolNotify.c MdeModulePkg/Core: Fix typos in comments 2016-10-27 09:11:17 +08:00