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https://bugzilla.tianocore.org/show_bug.cgi?id=260 Update workaround to be more generic. * Search for the largest region between 1MB and 4GB * Find all adjacent regions to compute total size * Minimum aligned size if 4KB * Mark extended region to align size as EFI_ALLOCATED * If an adjacent EFI_ALLOCATED region is present, then increase the size of the adjacent region. * If adjacent EFI_ALLOCATED region is not present, then allocate a new HOB with one extra entry to describe the extended region to align the total size. Preserve the last entry in the descriptor list for compatibility. This is a workaround until the binary module that produces the gEfiSmmPeiSmramMemoryReserveGuid HOB is updated Cc: Jiewen Yao <jiewen.yao@intel.com> Cc: David Wei <david.wei@intel.com> Cc: Mang Guo <mang.guo@intel.com> Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Michael Kinney <michael.d.kinney@intel.com> Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>