Re: [RFC PATCH 0/3] arm64: support FEAT_BBM level 2 and large block mapping when rodata=full

[Christoph Lameter (Ampere)]

On Tue, 10 Dec 2024, Will Deacon wrote:

> > With FEAT_BBM level 2 support, splitting large block page table to
> > smaller ones doesn't need to make the page table entry invalid anymore.
> > This allows kernel split large block mapping on the fly.
>
> I think you can still get TLB conflict aborts in this case, so this
> doesn't work. Hopefully the architecture can strengthen this in the

Which platforms get TLB conflicts? Ours does not. Is this an errata on
some platforms?