On Fri, Jan 26, 2024 at 02:49:13AM +, Liu, Zhiguang wrote:
> Hi Gerd,
> For the PCD, it current has below usage.
> 1) for 32-bit PEI and 64-bit DXE, this PCD will decide if use 5 level paging
> in DXE.
Yes. That is the only real use of the PCD today. I expect the days of
32bit BEI / 64bit
er Steffen
> Subject: Re: [edk2-devel] [PATCH v2 1/2] MdeModulePkg: rename
> PcdUse5LevelPageTable to PcdEnable5LevelPageTable
>
> On Thu, Jan 25, 2024 at 12:01:46PM +, Ni, Ray wrote:
> > Rename an existing PCD might break lots of platform builds.
> >
> > When 5-
On Thu, Jan 25, 2024 at 12:01:46PM +, Ni, Ray wrote:
> Rename an existing PCD might break lots of platform builds.
>
> When 5-level paging capability was added to ResetVector, I also
> considered to remove the PcdUse5LevelPageTable reference from C code.
>
> Let me think about it...
Purging
ups.io On Behalf Of Gerd
> Hoffmann
> Sent: Thursday, January 25, 2024 4:21 PM
> To: devel@edk2.groups.io
> Cc: Liming Gao ; László Érsek
> ; Oliver Steffen ; Gerd Hoffmann
>
> Subject: [edk2-devel] [PATCH v2 1/2] MdeModulePkg: rename
> PcdUse5LevelPageTable to PcdEnable5LevelPag
The PCD will allow but not require 5-level paging. Whenever 5-level
paging is used or not will be decided by the ResetVector, by looking
at CPU capabilities. Rename the PCD to make that clear.
Signed-off-by: Gerd Hoffmann
---
MdeModulePkg/MdeModulePkg.dec| 2 +-
