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Hao Wu d9f1cac51b MdePkg/BaseLib: Introduce new SpeculationBarrier API 
REF:https://bugzilla.tianocore.org/show_bug.cgi?id=1417

X86 specific BaseLib API AsmLfence() was introduced to address the Spectre
Variant 1 (CVE-2017-5753) issue. The purpose of this API is to insert
barriers to stop speculative execution. However, the API is highly
architecture (X86) specific, and thus should be avoided using across
generic code.

To address this issue, this patch will add a new BaseLib API called
SpeculationBarrier(). Different architectures will have different
implementations for this API.

For IA32 and x64, the implementation of SpeculationBarrier() will
directly call AsmLfence().

For ARM and AARCH64, this patch will add a temporary empty implementation
as a placeholder. We hope experts in ARM can help to contribute the actual
implementation.

For EBC, similar to the ARM and AARCH64 cases, a temporary empty
implementation is added.

Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Leif Lindholm <leif.lindholm@linaro.org>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Hao Wu <hao.a.wu@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>
 		2018-12-25 09:15:34 +08:00
..
BaseLib.h MdePkg/BaseLib: Introduce new SpeculationBarrier API 2018-12-25 09:15:34 +08:00
BaseMemoryLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
CacheMaintenanceLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
CpuLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
DebugLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
DebugPrintErrorLevelLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
DevicePathLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
DxeCoreEntryPoint.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
DxeServicesLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
DxeServicesTableLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
ExtendedSalLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
ExtractGuidedSectionLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
FileHandleLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
HobLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
HstiLib.h Add HSTI support. 2015-01-19 06:08:23 +00:00
IoLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
MemoryAllocationLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
OrderedCollectionLib.h MdePkg: introduce OrderedCollectionLib library class 2014-08-12 07:28:52 +00:00
PalLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PcdLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PciCf8Lib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PciExpressLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PciLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PciSegmentInfoLib.h MdePkg/PciSegmentInfoLib: Add PciSegmentInfoLib class and instance. 2017-08-28 16:47:04 +08:00
PciSegmentLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PeCoffExtraActionLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PeCoffGetEntryPointLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PeCoffLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PeiCoreEntryPoint.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PeiServicesLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PeiServicesTablePointerLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PeimEntryPoint.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PerformanceLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PostCodeLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
PrintLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
ReportStatusCodeLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
ResourcePublicationLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
RngLib.h MdePkg: Create GetRandomNumber128 in RngLib 2015-10-09 06:03:17 +00:00
S3BootScriptLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
S3IoLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
S3PciLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
S3PciSegmentLib.h MdePkg/S3PciSegmentLib: Add S3PciSegmentLib class and instance. 2017-08-28 16:47:05 +08:00
S3SmbusLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
S3StallLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SafeIntLib.h MdePkg SafeIntLib: Update API definition to use the same output name 2018-02-01 09:24:49 +08:00
SalLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SerialPortLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SmbusLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SmiHandlerProfileLib.h MdePkg/SmiHandlerProfile: Add Context support in Unregister 2017-03-13 16:04:11 +08:00
SmmIoLib.h MdePkg/SmmIoLib: Add header file. 2017-04-26 09:22:17 +08:00
SmmLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SmmMemLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SmmPeriodicSmiLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SmmServicesTableLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
SynchronizationLib.h MdePkg/SynchronizationLib: fix Interlocked[De|In]crement return value 2018-09-25 10:02:53 +08:00
TimerLib.h Add new API GetTimeInNanoSecond() to TimerLib to convert elapsed ticks to time in unit of nanoseconds. 2011-08-25 05:59:17 +00:00
UefiApplicationEntryPoint.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
UefiBootServicesTableLib.h Update the copyright notice format 2010-04-23 15:46:20 +00:00
UefiDecompressLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
UefiDriverEntryPoint.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
UefiLib.h MdePkg UefiLib: Add new EfiLocateXXXAcpiTable() APIs 2018-09-27 14:25:32 +08:00
UefiRuntimeLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
UefiRuntimeServicesTableLib.h Update the copyright notice format 2010-04-23 15:46:20 +00:00
UefiScsiLib.h MdePkg: Clean up source files 2018-06-28 11:19:47 +08:00
UefiUsbLib.h Update the copyright notice format 2010-04-23 15:46:20 +00:00