Re: [PATCH v14 3/5] KVM: arm64: Manage GCS access and registers for guests

[Mark Brown]

On Sat, Oct 05, 2024 at 03:02:09PM +0100, Marc Zyngier wrote:
> Mark Brown <broonie@xxxxxxxxxx> wrote:

> > Ah, I see.  I'd been under the impression that the generic machinery was
> > supposed to handle this already using the descriptions in
> > emulate-nested.c and we only needed handlers for more specific actions.

> From that very file:

> /*
>  * Map encoding to trap bits for exception reported with EC=0x18.
>  [...]
>  */

> Everything else needs special handling.

I see.  I had noticed that comment on that table but I didn't register
that the comment wound up applying to the whole file rather than being
about a specific part of the handling.  I'm a bit confused about how
things like the SVE traps I mentioned work here...

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