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| author | Ruiyu Ni <ruiyu.ni@intel.com> | 2017-05-05 10:10:00 +0800 |
|---|---|---|
| committer | Ruiyu Ni <ruiyu.ni@intel.com> | 2017-05-08 13:35:25 +0800 |
| commit | 3654c4623c9b37ddc64426995fa399d8626b7ced (patch) | |
| tree | b7a9470dd26da2e79dd177fea90c4179b80d2812 /BaseTools/Source/Python/CommonDataClass/PlatformClass.py | |
| parent | 007b51e180d2202637dfc6d2afbe8a34704c423f (diff) | |
| download | edk2-3654c4623c9b37ddc64426995fa399d8626b7ced.tar.gz edk2-3654c4623c9b37ddc64426995fa399d8626b7ced.tar.bz2 edk2-3654c4623c9b37ddc64426995fa399d8626b7ced.zip | |
UefiCpuPkg/MtrrLib: Don't report OutOfResource when MTRR is enough
The MTRR calculation algorithm contains a bug that when left
subtraction cannot produce better MTRR solution, it forgets
to restore the BaseAddress/Length so that MtrrLibGetMtrrNumber()
returns bigger value of actual required MTRR numbers.
As a result, the MtrrLib reports OutOfResource but actually the
MTRR is enough.
MEMORY_RANGE mC[] = {
0, 0x100000, CacheUncacheable,
0x100000, 0x89F00000, CacheWriteBack,
0x8A000000, 0x75000000, CacheUncacheable,
0xFF000000, 0x01000000, CacheWriteProtected,
0x100000000, 0x7F00000000, CacheUncacheable,
0xFC240000, 0x2000, CacheWriteCombining // <-- trigger the error
};
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ruiyu Ni <ruiyu.ni@intel.com>
Reviewed-by: Jeff Fan <jeff.fan@intel.com>
Diffstat (limited to 'BaseTools/Source/Python/CommonDataClass/PlatformClass.py')
0 files changed, 0 insertions, 0 deletions