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UefiCpuPkg/PiSmmCpuDxeSmm: Allocate buffer for each CPU semaphores 

Allocate each CPU 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 10:19:23 +08:00 committed by Michael Kinney
parent fe3a75bc41
commit 4e92058113
2 changed files with 21 additions and 1 deletions
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11
UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
View File

@ -1208,6 +1208,7 @@ InitializeSmmCpuSemaphores (
UINTN ProcessorCount;
UINTN TotalSize;
UINTN GlobalSemaphoresSize;
UINTN CpuSemaphoresSize;
UINTN SemaphoreSize;
UINTN Pages;
UINTN *SemaphoreBlock;
@ -1216,7 +1217,8 @@ InitializeSmmCpuSemaphores (
SemaphoreSize = GetSpinLockProperties ();
ProcessorCount = gSmmCpuPrivate->SmmCoreEntryContext.NumberOfCpus;
GlobalSemaphoresSize = (sizeof (SMM_CPU_SEMAPHORE_GLOBAL) / sizeof (VOID *)) * SemaphoreSize;
TotalSize = GlobalSemaphoresSize;
CpuSemaphoresSize = (sizeof (SMM_CPU_SEMAPHORE_CPU) / sizeof (VOID *)) * ProcessorCount * SemaphoreSize;
TotalSize = GlobalSemaphoresSize + CpuSemaphoresSize;
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);
@ -1236,6 +1238,13 @@ InitializeSmmCpuSemaphores (
mSmmCpuSemaphores.SemaphoreGlobal.CodeAccessCheckLock
= (SPIN_LOCK *)SemaphoreAddr;
SemaphoreAddr = (UINTN)SemaphoreBlock + GlobalSemaphoresSize;
mSmmCpuSemaphores.SemaphoreCpu.Busy = (SPIN_LOCK *)SemaphoreAddr;
SemaphoreAddr += ProcessorCount * SemaphoreSize;
mSmmCpuSemaphores.SemaphoreCpu.Run = (UINT32 *)SemaphoreAddr;
SemaphoreAddr += ProcessorCount * SemaphoreSize;
mSmmCpuSemaphores.SemaphoreCpu.Present = (BOOLEAN *)SemaphoreAddr;
mSmmMpSyncData->Counter = mSmmCpuSemaphores.SemaphoreGlobal.Counter;
mSmmMpSyncData->InsideSmm = mSmmCpuSemaphores.SemaphoreGlobal.InsideSmm;
mSmmMpSyncData->AllCpusInSync = mSmmCpuSemaphores.SemaphoreGlobal.AllCpusInSync;

11
UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.h
View File

@ -366,11 +366,22 @@ typedef struct {
SPIN_LOCK *CodeAccessCheckLock;
} SMM_CPU_SEMAPHORE_GLOBAL;
///
/// All semaphores for each processor
///
typedef struct {
SPIN_LOCK *Busy;
volatile UINT32 *Run;
volatile BOOLEAN *Present;
} SMM_CPU_SEMAPHORE_CPU;
///
/// All semaphores' information
///
typedef struct {
SMM_CPU_SEMAPHORE_GLOBAL SemaphoreGlobal;
SMM_CPU_SEMAPHORE_CPU SemaphoreCpu;
} SMM_CPU_SEMAPHORES;
extern IA32_DESCRIPTOR gcSmiGdtr;