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UefiCpuPkg/PiSmmCpuDxeSmm: Allocate buffer for MSRs semaphores 

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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3
UefiCpuPkg/PiSmmCpuDxeSmm/CpuS3.c
View File

@ -1,7 +1,7 @@
/** @file
Code for Processor S3 restoration
Copyright (c) 2006 - 2015, Intel Corporation. All rights reserved.<BR>
Copyright (c) 2006 - 2016, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
@ -48,7 +48,6 @@ AsmGetAddressMap (
#define LEGACY_REGION_SIZE (2 * 0x1000)
#define LEGACY_REGION_BASE (0xA0000 - LEGACY_REGION_SIZE)
#define MSR_SPIN_LOCK_INIT_NUM 15
ACPI_CPU_DATA mAcpiCpuData;
UINT32 mNumberToFinish;

10
UefiCpuPkg/PiSmmCpuDxeSmm/MpService.c
View File

@ -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;

10
UefiCpuPkg/PiSmmCpuDxeSmm/PiSmmCpuDxeSmm.h
View File

@ -323,6 +323,8 @@ typedef struct {
volatile BOOLEAN *CandidateBsp;
} SMM_DISPATCHER_MP_SYNC_DATA;
#define MSR_SPIN_LOCK_INIT_NUM 15
typedef struct {
SPIN_LOCK SpinLock;
UINT32 MsrIndex;
@ -375,6 +377,13 @@ typedef struct {
volatile BOOLEAN *Present;
} SMM_CPU_SEMAPHORE_CPU;
///
/// All MSRs semaphores' pointer and counter
///
typedef struct {
SPIN_LOCK *Msr;
UINTN AvailableCounter;
} SMM_CPU_SEMAPHORE_MSR;
///
/// All semaphores' information
@ -382,6 +391,7 @@ typedef struct {
typedef struct {
SMM_CPU_SEMAPHORE_GLOBAL SemaphoreGlobal;
SMM_CPU_SEMAPHORE_CPU SemaphoreCpu;
SMM_CPU_SEMAPHORE_MSR SemaphoreMsr;
} SMM_CPU_SEMAPHORES;
extern IA32_DESCRIPTOR gcSmiGdtr;