UefiCpuPkg/PiSmmCpuDxeSmm:Check resource HOB range before mapping #6431
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This commit is to check if the resource HOB range does not exceed the max supported physical address. The function BuildMemoryMapFromResDescHobs is to build Memory Region from resource HOBs. Then the memory maps will be used during creating or modifying SMM page table. If the resource HOB range exceeds the max supported physical address, then subsequent calling of PageTableMap() will fail. Signed-off-by: Dun Tan <[email protected]>
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Nov 14, 2024
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Description
This commit is to check if the resource HOB range does not exceed the max supported physical address.
The function BuildMemoryMapFromResDescHobs is to build Memory Region from resource HOBs. Then the memory maps will be used during creating or modifying SMM page table. If the resource HOB range exceeds the max supported physical address, then subsequent calling of PageTableMap() will fail.
How This Was Tested
Tested in Intel internal server platform with x86 standalone MM enabled and succussfully booted into shell