[edk2-devel] [PATCH v4 0/6] Microcode related optimizations

[Wu, Hao A]

Series is also available at:
https://github.com/hwu25/edk2/tree/mpinitlib_opt_v4

V4 changes:
A. For patch 2, keep the calling sequence of functions:
   MicrocodeDetect() and MtrrGetAllMtrrs() unchanged for BSP.
B. For patch 2, in function LoadMicrocodePatch(), add the missing logic
   that handles the Extended Signature Table of a microcode patch.


V3 history:
For patch 3, correct license information for newly added header file.

V2 history:
A. For patch 2, rename function parameters and variables to better reflect
   their usage;
B. For patch 2, remove unneeded check in LoadMicrocodePatchWorker();
C. For patch 3, rename a couple of fields in the HOB structure;
D. For patch 3, update the 'ProcessorSpecificPatchOffset' field to point
   to the microcode patch header instead of microcode patch data;
E. Add a new patch 5 to address an issue that certain fields in the
   CPU_MP_DATA structure cannot be passed from PEI phase to DXE phase;
F. Add a new patch 6 to remove the redundant microcode related fields in
   the CPU_MP_DATA structure.

V1 history:
This series will introduce a couple of optimizations to the MpInitLib with
regard to microcode:

A. Reduce the copy size when loading the microcode patches data from flash
   into memory;
B. Produce a HOB to contain microcode patches information for subsequent
   consumers of the microcode patches during the boot flow.

Uni-test done for the series:
A. System boot to OS/Shell successfully on a real platform;
B. Add debug message to verify the same microcode patch is applied to each
   processor before and after the series.


Cc: Eric Dong <eric.dong at intel.com>
Cc: Ray Ni <ray.ni at intel.com>
Cc: Laszlo Ersek <lersek at redhat.com>
Cc: Star Zeng <star.zeng at intel.com>
Cc: Siyuan Fu <siyuan.fu at intel.com>
Cc: Michael D Kinney <michael.d.kinney at intel.com>

Hao A Wu (6):
  UefiCpuPkg/MpInitLib: Collect processors' CPUID & Platform ID info
  UefiCpuPkg/MpInitLib: Reduce the size when loading microcode patches
  UefiCpuPkg: Add definitions for EDKII microcode patch HOB
  UefiCpuPkg/MpInitLib: Produce EDKII microcode patch HOB
  UefiCpuPkg/MpInitLib: Relocate microcode patch fields in CPU_MP_DATA
  UefiCpuPkg/MpInitLib: Remove redundant microcode fields in CPU_MP_DATA

 UefiCpuPkg/UefiCpuPkg.dec                     |   3 +
 UefiCpuPkg/Library/MpInitLib/PeiMpInitLib.inf |   1 +
 UefiCpuPkg/Include/Guid/MicrocodePatchHob.h   |  44 +++
 UefiCpuPkg/Library/MpInitLib/MpLib.h          |  59 +++-
 UefiCpuPkg/Library/MpInitLib/Microcode.c      | 351 ++++++++++++++++++--
 UefiCpuPkg/Library/MpInitLib/MpLib.c          | 110 +++---
 UefiCpuPkg/Library/MpInitLib/PeiMpLib.c       |  55 +++
 7 files changed, 513 insertions(+), 110 deletions(-)
 create mode 100644 UefiCpuPkg/Include/Guid/MicrocodePatchHob.h

-- 
2.12.0.windows.1


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