Re: [PATCH 03/16] KVM: arm64: Avoid remapping the SVE state in the hyp stage-1

[Quentin Perret]

On Saturday 16 Oct 2021 at 12:04:15 (+0100), Marc Zyngier wrote:
> I actually ended-up implementing a similar patch as part of my 'first
> run' series[1], though I moved the mapping to the point where we
> finalise the vcpu as that's where the allocation takes place.
> 
> Do you see any potential issue with that approach?

Nope, and in fact I think your patch should allow to simplify a bit
kvm_arm_vcpu_destroy() for me, as checking arch.sve_state != NULL would
now be sufficient to know if the sve state has been shared -- checking
arch.has_run_once is no longer needed.

I'll base v2 on this.

Thanks!
Quentin