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UefiCpuPkg/PiSmmCpuDxeSmm: Add MemoryMapped in SetProcessorRegister()

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REGISTER_TYPE in UefiCpuPkg/Include/AcpiCpuData.h defines a MemoryMapped
enum value.  However support for the MemoryMapped enum is missing from
the implementation of SetProcessorRegister().  This patch adds support
for MemoryMapped type SetProcessorRegister().

One spin lock is added to avoid potential conflict when multiple processor
update the same memory space.

Cc: Michael Kinney <michael.d.kinney@intel.com>
Cc: Feng Tian <feng.tian@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Jeff Fan <jeff.fan@intel.com>
Reviewed-by: Feng Tian <feng.tian@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Regression-tested-by: Laszlo Ersek <lersek@redhat.com>
This commit is contained in:
Jeff Fan
2016-06-29 09:00:13 +08:00
committed by Michael Kinney
parent 8b9311b795
commit 6c4c15fae6
4 changed files with 27 additions and 0 deletions
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5
UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
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@@ -1239,6 +1239,10 @@ InitializeSmmCpuSemaphores (
SemaphoreAddr += SemaphoreSize;
mSmmCpuSemaphores.SemaphoreGlobal.CodeAccessCheckLock
= (SPIN_LOCK *)SemaphoreAddr;
SemaphoreAddr += SemaphoreSize;
mSmmCpuSemaphores.SemaphoreGlobal.MemoryMappedLock
= (SPIN_LOCK *)SemaphoreAddr;
SemaphoreAddr = (UINTN)SemaphoreBlock + GlobalSemaphoresSize;
mSmmCpuSemaphores.SemaphoreCpu.Busy = (SPIN_LOCK *)SemaphoreAddr;
SemaphoreAddr += ProcessorCount * SemaphoreSize;
@@ -1254,6 +1258,7 @@ InitializeSmmCpuSemaphores (
mPFLock = mSmmCpuSemaphores.SemaphoreGlobal.PFLock;
mConfigSmmCodeAccessCheckLock = mSmmCpuSemaphores.SemaphoreGlobal.CodeAccessCheckLock;
mMemoryMappedLock = mSmmCpuSemaphores.SemaphoreGlobal.MemoryMappedLock;
mSemaphoreSize = SemaphoreSize;
}