Re: [PATCH v2 0/2] efi: Fixes for EFI_MEMORY_SP memory on RISC-V and ARM64

[Palmer Dabbelt]

On Fri, 02 Feb 2024 10:28:54 PST (-0800), Ard Biesheuvel wrote:
> On Fri, 2 Feb 2024 at 19:07, Andrew Bresticker <abrestic@xxxxxxxxxxxx> wrote:
> > Two small fixes to enable the use soft-reserved/special-purpose memory
> > (EFI_MEMORY_SP) with dax_kmem on RISC-V (and ARM64, I think, though I
> > don't have a platform to test it on).
> >
> > Patch 1 fixes a trivial integer narrowing bug. Patch 2 prevents adding
> > memblocks for soft-reserved memory so that it can later be hotplugged by
> > dax_kmem.
> >
> > Tested on a RISC-V platform that presents a range of EFI_MEMORY_SP with
> > Bjorn's MEMORY_HOTPLUG series[0] applied.
> >
> > [0]: https://lore.kernel.org/lkml/20230512145737.985671-1-bjorn@xxxxxxxxxx/
> >
> > v1->v2: address comments from Ard
> >
> > Andrew Bresticker (2):
> >   efi: runtime: Fix potential overflow of soft-reserved region size
> >   efi: Don't add memblocks for soft-reserved memory
>
> Thanks, I'll take these both as fixes.

Acked-by: Palmer Dabbelt <palmer@xxxxxxxxxxxx>

Thanks!