Branch: refs/heads/master
Home: https://github.com/tianocore/edk2
Commit: aac5b3eca3ea67e2cc9525a742334fb257235fe4
https://github.com/tianocore/edk2/commit/aac5b3eca3ea67e2cc9525a742334fb257235fe4
Author: Hongbin1 Zhang <[email protected]>
Date: 2024-10-31 (Thu, 31 Oct 2024)
Changed paths:
M StandaloneMmPkg/Drivers/StandaloneMmIplPei/MmFoundationHob.c
Log Message:
-----------
StandaloneMmPkg/MmIpl: Max physical address bits if disable 5 page level
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
[0xffff8000_00000000, 0xffffffff_ffffffff]. So only [0, 2^47-1]
linear-address range maps to the identical physical-address range
when 5-Level paging is disabled.
Signed-off-by: Hongbin1 Zhang <[email protected]>
Cc: Jiewen Yao <[email protected]>
Cc: Ray Ni <[email protected]>
Cc: Star Zeng <[email protected]>
Cc: Jiaxin Wu <[email protected]>
Cc: Wei6 Xu <[email protected]>
Cc: Sami Mujawar <[email protected]>
Cc: Ard Biesheuvel <[email protected]>
Cc: Supreeth Venkatesh <[email protected]>
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