audk/UefiCpuPkg/Library
Siyuan Fu dd01704111 UefiCpuPkg: Shadow microcode patch according to FIT microcode entry.
The existing MpInitLib will shadow the microcode update patches from
flash to memory and this is done by searching microcode region specified
by PCD PcdCpuMicrocodePatchAddress and PcdCpuMicrocodePatchRegionSize.
This brings a limition to platform FW that all the microcode patches must
be placed in one continuous flash space.

This patch shadows microcode update according to FIT microcode entries if
it's present, otherwise it will fallback to original logic (by PCD).

A new featured PCD gUefiCpuPkgTokenSpaceGuid.PcdCpuShadowMicrocodeByFit
is added for enabling/disabling this support.

TEST: Tested on FIT enabled platform.
BZ: https://tianocore.acgmultimedia.com/show_bug.cgi?id=2449

Cc: Eric Dong <eric.dong@intel.com>
Cc: Ray Ni <ray.ni@intel.com>
Cc: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Siyuan Fu <siyuan.fu@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
2020-01-10 06:20:42 +00:00
..
BaseUefiCpuLib UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
BaseXApicLib UefiCpuPkg: Update code to include register definitions from MdePkg 2019-08-09 08:52:09 +08:00
BaseXApicX2ApicLib UefiCpuPkg: Update code to include register definitions from MdePkg 2019-08-09 08:52:09 +08:00
CpuCommonFeaturesLib UefiCpuPkg/CpuCommonFeaturesLib: SMXE bit of CR4 should set 2020-01-10 03:41:55 +00:00
CpuExceptionHandlerLib UefiCpuPkg/CpuExceptionHandlerLib: Fix split lock 2019-09-20 14:37:42 +08:00
CpuTimerLib UefiCpuPkg: Adding a new TSC library by using CPUID(0x15) TSC leaf 2019-08-21 21:36:56 +08:00
MpInitLib UefiCpuPkg: Shadow microcode patch according to FIT microcode entry. 2020-01-10 06:20:42 +00:00
MpInitLibUp UefiCpuPkg/MpInitLibUp: Add MpInitLibStartupAllCPUs API. 2019-07-29 09:25:20 +08:00
MtrrLib UefiCpuPkg: Update code to include register definitions from MdePkg 2019-08-09 08:52:09 +08:00
PlatformSecLibNull UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
RegisterCpuFeaturesLib UefiCpuPkg/RegisterCpuFeaturesLib: Supports test then write new value logic. 2019-08-21 02:44:49 +08:00
SecPeiDxeTimerLibUefiCpu UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00
SmmCpuFeaturesLib UefiCpuPkg: Update code to include register definitions from MdePkg 2019-08-09 08:52:09 +08:00
SmmCpuPlatformHookLibNull UefiCpuPkg: Replace BSD License with BSD+Patent License 2019-04-09 10:58:28 -07:00