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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> |
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| Universal | ||
| MdeModulePkg.dec | ||
| MdeModulePkg.dsc | ||
| MdeModulePkg.uni | ||
| MdeModulePkgExtra.uni | ||