Re: [PATCH v2 1/2] arm64: sdei: Run the event handler on the kernel vectors

[Ada Couprie Diaz]

Hi Catalin,

On 06/11/2026 18:35, Catalin Marinas wrote:
> Hi Ada,
>
> On Fri, Nov 06, 2026 at 04:14:56PM +0000, Ada Couprie Diaz wrote:
> > What are your thoughts ?
> > I understand that this is a completely different approach, but I feel it
> > would be more in line with what we already do for other entry paths.
> I agree moving this closer to the normal entry path makes sense and the
> PMR handling probably belongs there as well. However, I think there are
> implications for VHE (the handler runs at EL2 with VBAR_EL2) and for an
> event that interrupts a KVM world switch on the hyp vectors. I need to
> dig some more into this.
Ah, I was unsure about KVM, but that makes sense...
> In the meantime, I queued Kiryl's two patches, they're small enough for
> stable. Any entry.S rework can come on top of them for future kernels.

That sounds good, given handling KVM properly otherwise would
require more digging. I would be happy to have a look at such a rework
at some point ; I will bring it up with Mark R.

> Thanks.
Thanks,
Ada