[edk2-devel] [PATCH v5 0/6] Microcode related optimizations

[Wu, Hao A]

Ray and Eric, thanks a lot for the review.

Hello Laszlo,
It seems that you are out of office, I plan to push the series without your
comments first. If you have feedbacks/comments with regard to the series, I
will follow up for the potential refine/revert of the series.

Best Regards,
Hao Wu


> -----Original Message-----
> From: Ni, Ray
> Sent: Thursday, January 02, 2020 10:40 AM
> To: devel at edk2.groups.io; Wu, Hao A
> Cc: Dong, Eric; Laszlo Ersek; Zeng, Star; Fu, Siyuan; Kinney, Michael D
> Subject: RE: [edk2-devel] [PATCH v5 0/6] Microcode related optimizations
> 
> Reviewed-by: Ray Ni <ray.ni at intel.com>
> 
> > -----Original Message-----
> > From: devel at edk2.groups.io <devel at edk2.groups.io> On Behalf Of Wu,
> Hao
> > A
> > Sent: Tuesday, December 31, 2019 8:49 AM
> > To: devel at edk2.groups.io
> > Cc: Wu, Hao A <hao.a.wu at intel.com>; Dong, Eric <eric.dong at intel.com>;
> Ni,
> > Ray <ray.ni at intel.com>; Laszlo Ersek <lersek at redhat.com>; Zeng, Star
> > <star.zeng at intel.com>; Fu, Siyuan <siyuan.fu at intel.com>; Kinney,
> Michael
> > D <michael.d.kinney at intel.com>
> > Subject: [edk2-devel] [PATCH v5 0/6] Microcode related optimizations
> >
> > Series is also available at:
> > https://github.com/hwu25/edk2/tree/mpinitlib_opt_v5
> >
> > V5 changes:
> > A. For patch 2, address a typo to resolve enlarging the microcode patch
> >    information buffer too early when it is not full;
> > B. For patch 4, relocate the logic of storing detected microcode patch
> >    before the application of microcode patch.
> >
> > V4 history:
> > 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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