Ruiyu Ni 447b08b3d2 UefiCpuPkg/MtrrLib: Revert "Skip MSR access when the pair is invalid"
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1187

The patch reverts 9c8c4478cfcacaf5fd60b75ff78d26732d93a5b8
"UefiCpuPkg/MtrrLib: Skip Base MSR access when the pair is invalid".

Microsoft Windows will report an error in event manager if MTRR
usage is different across hibernate even when the difference is
in an non valid MTRR pair. This seems like a bug in Windows but
for compatibility and servicing reasons we think a change in UEFI
would wise.
A Windows change has already been submitted for the next iteration
(2019 time frame).

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Cc: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
Cc: Sean Brogan <sean.brogan@microsoft.com>
2018-09-26 13:09:15 +08:00

EDK II Project

A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org.

Contributions to the EDK II open source project are covered by the TianoCore Contribution Agreement 1.1

The majority of the content in the EDK II open source project uses a BSD 2-Clause License. The EDK II open source project contains the following components that are covered by additional licenses:

The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.

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