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0fa92d5839
REF: https://bugzilla.tianocore.org/show_bug.cgi?id=1505 When a device under PPB contains option ROM but doesn't require 32bit MMIO, ProgrameUpstreamBridgeForRom() cannot correctly restore the PPB MEM32 RANGE BAR. It causes the 32bit MMIO conflict which may cause system hangs in boot. The root cause is when ProgrameUpstreamBridgeForRom() calls ProgramPpbApperture() to restore the PPB MEM32 RANGE BAR, the ProgramPpbApperture() skips to program the BAR when the resource length is 0. This patch fixes this issue by not calling ProgramPpbApperture(). Instead, it directly programs the PPB MEM32 RANGE BAR. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ray Ni <ray.ni@intel.com> Reviewed-by: Hao Wu <hao.a.wu@intel.com> Cc: Dandan Bi <dandan.bi@intel.com>
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:
- AppPkg/Applications/Python/Python-2.7.2/Tools/pybench
- AppPkg/Applications/Python/Python-2.7.2
- AppPkg/Applications/Python/Python-2.7.10
- BaseTools/Source/C/BrotliCompress
- MdeModulePkg/Library/BrotliCustomDecompressLib
- OvmfPkg
- CryptoPkg/Library/OpensslLib/openssl
The EDK II Project is composed of packages. The maintainers for each package are listed in Maintainers.txt.