[PATCH v8 26/38] KVM: arm64: Handle SME host state when running guests

[Mark Brown]

On Tue, Jan 25, 2022 at 01:22:51PM +0000, Marc Zyngier wrote:
> Mark Brown <broonie at kernel.org> wrote:

> > > I find the use of CPACR_EL1_SMEN in some cases and its individual bits
> > > in some others pretty confusing. I understand that you have modelled
> > > it after the SVE code, but maybe this is a mistake we don't need to
> > > repeat. I'd be in favour of directly exposing the individual bits in
> > > all cases.

> > OK, it is just the KVM code that uses the plain ZEN.  I'll add a cleanup
> > patch for that at the start of the series for ZEN I guess otherwise it
> > looks worse, though that will inflate the size of the series a bit.

> I'm happy to merge such a patch early if that helps.

That'd be good.  There's also similar stuff going on with FPEN BTW
(which is I imagine where the SVE stuff came from).
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