Hi,
> + //
> + // 4-level paging supports translating 48-bit linear addresses to 52-bit
> physical addresses.
> + // Since linear addresses are sign-extended, the linear-address space of
> 4-level paging is:
> + // [0, 2^47-1] and [0x8000_, 0x_].
> + // So
; Gerd Hoffmann
Subject: [edk2-devel] [Patch V4] UefiCpuPkg:Limit PhysicalAddressBits in
special case
When creating smm page table, limit maximum supported physical addresses bits
returned by
CalculateMaximumSupportAddress() to 47 if 5-Level Paging is disabled.
This commit is to avoid issue
When creating smm page table, limit maximum
supported physical addresses bits returned by
CalculateMaximumSupportAddress() to 47 if
5-Level Paging is disabled.
This commit is to avoid issue that more than
47-bit physical addresses are requested in smm
page table when 5-level paging is disabled.
