Ruiyu Ni ffa1916276 UefiCpuPkg/MtrrLib: Fix a MTRR calculation bug
80                   A8   B0   B8   C0
+----------WB--------+-UC-+-WT-+-WB-+

For above memory settings, current code caused the final MTRR
settings miss [A8, B0, UC] when default memory type is UC.

The root cause is the code only checks the mandatory weight
between A8 to B0, but skips to check the optional weight.
The patch fixes this issue.

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Eric Dong <eric.dong@intel.com>
(cherry picked from commit 579510336e)
2018-02-06 16:04:13 +08:00
2014-10-14 16:08:15 +00:00
2017-12-26 11:06:01 +08:00

EDK II Project

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

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