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UefiCpuPkg/PiSmmCpuDxeSmm: Allocate buffer for MSRs semaphores

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Allocate MSRs semaphores in allocated aligned semaphores buffer.
And add it into semaphores structure.

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
2016-03-22 10:36:28 +08:00
committed by Michael Kinney
parent ed3d5ecb34
commit 695e62d141
3 changed files with 20 additions and 3 deletions
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10
UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
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@@ -1210,6 +1210,7 @@ InitializeSmmCpuSemaphores (
UINTN TotalSize;
UINTN GlobalSemaphoresSize;
UINTN CpuSemaphoresSize;
UINTN MsrSemahporeSize;
UINTN SemaphoreSize;
UINTN Pages;
UINTN *SemaphoreBlock;
@@ -1219,7 +1220,8 @@ InitializeSmmCpuSemaphores (
ProcessorCount = gSmmCpuPrivate->SmmCoreEntryContext.NumberOfCpus;
GlobalSemaphoresSize = (sizeof (SMM_CPU_SEMAPHORE_GLOBAL) / sizeof (VOID *)) * SemaphoreSize;
CpuSemaphoresSize = (sizeof (SMM_CPU_SEMAPHORE_CPU) / sizeof (VOID *)) * ProcessorCount * SemaphoreSize;
TotalSize = GlobalSemaphoresSize + CpuSemaphoresSize;
MsrSemahporeSize = MSR_SPIN_LOCK_INIT_NUM * SemaphoreSize;
TotalSize = GlobalSemaphoresSize + CpuSemaphoresSize + MsrSemahporeSize;
DEBUG((EFI_D_INFO, "One Semaphore Size = 0x%x\n", SemaphoreSize));
DEBUG((EFI_D_INFO, "Total Semaphores Size = 0x%x\n", TotalSize));
Pages = EFI_SIZE_TO_PAGES (TotalSize);
@@ -1246,6 +1248,12 @@ InitializeSmmCpuSemaphores (
SemaphoreAddr += ProcessorCount * SemaphoreSize;
mSmmCpuSemaphores.SemaphoreCpu.Present = (BOOLEAN *)SemaphoreAddr;
SemaphoreAddr = (UINTN)SemaphoreBlock + GlobalSemaphoresSize + CpuSemaphoresSize;
mSmmCpuSemaphores.SemaphoreMsr.Msr = (SPIN_LOCK *)SemaphoreAddr;
mSmmCpuSemaphores.SemaphoreMsr.AvailableCounter =
((UINTN)SemaphoreBlock + Pages * SIZE_4KB - SemaphoreAddr) / SemaphoreSize;
ASSERT (mSmmCpuSemaphores.SemaphoreMsr.AvailableCounter >= MSR_SPIN_LOCK_INIT_NUM);
mSmmMpSyncData->Counter = mSmmCpuSemaphores.SemaphoreGlobal.Counter;
mSmmMpSyncData->InsideSmm = mSmmCpuSemaphores.SemaphoreGlobal.InsideSmm;
mSmmMpSyncData->AllCpusInSync = mSmmCpuSemaphores.SemaphoreGlobal.AllCpusInSync;