[PATCH v2 10/10] ARM: p2v: reduce p2v alignment requirement to 2 MiB

[Ard Biesheuvel]

On Tue, 22 Sep 2020 at 17:12, Nicolas Pitre <nico at fluxnic.net> wrote:
>
> On Tue, 22 Sep 2020, Ard Biesheuvel wrote:
>
> > By changing the patchable sequences and the patching logic to carry
> > more bits of offset, we can improve this: 11 bits gives us 4 GiB >> 11
> > == 2 MiB granularity, and so you never waste more than that amount by
> > rounding up the physical start of DRAM to the next multiple of 2 MiB.
> > (Note that 2 MiB granularity guarantees that the linear mapping can be
> > created efficiently, whereas less than 2 MiB may result in the linear
> > mapping needing another level of page tables)
>
> That is IMHO the top argument for limiting it to 2 MiB.
> It would be worth making this explicit in the commit log.
>

OK, I will merge this paragraph into the commit log.