Re: [PATCH 1/2] efi: Fix reservation of unaccepted memory table

[Kiryl Shutsemau]

On Fri, Feb 13, 2026 at 08:46:55AM -0800, Dave Hansen wrote:
> On 2/13/26 08:14, Kiryl Shutsemau wrote:
> >> The memblock code seems to be able to handle arbitrary alignment just fine.
> > Memblock will track it, but, as the comment says, anything smaller than
> > page size will not be mapped, but we need the table to be accessible by
> > kernel.
> 
> That seems really, really fragile.
> 
> We should first make sure this is intentional memblock behavior and not
> a bug before we go add more hacks on top of it.
> 
> Why would you even present a byte-level reservation interface if it is
> free to just silently ignore some of the ranges by rounding them off later?

+Mike.

My guess that multiple memblock_add() calls might add up to the full
page size.

-- 
  Kiryl Shutsemau / Kirill A. Shutemov