Re: [PATCH 0/5] KVM: Turn the vcpu array into an xarray

[Marc Zyngier <maz@kernel.org>]

On Tue, 16 Nov 2021 15:03:40 +0000,
Paolo Bonzini <pbonzini@redhat.com> wrote:
> 
> On 11/5/21 20:20, Marc Zyngier wrote:
> > The kvm structure is pretty large. A large portion of it is the vcpu
> > array, which is 4kB on x86_64 and arm64 as they deal with 512 vcpu
> > VMs. Of course, hardly anyone runs VMs this big, so this is often a
> > net waste of memory and cache locality.
> > 
> > A possible approach is to turn the fixed-size array into an xarray,
> > which results in a net code deletion after a bit of cleanup.
> > 
> > This series is on top of the current linux/master as it touches the
> > RISC-V implementation. Only tested on arm64.
> 
> Queued, only locally until I get a review for my replacement of patch
> 4 (see
> https://lore.kernel.org/kvm/20211116142205.719375-1-pbonzini@redhat.com/T/).

In which case, let me send a v2 with the changes that we discussed
with Sean. It will still have my version of patch 4, but that's
nothing you can't fix.

	M.

-- 
Without deviation from the norm, progress is not possible.
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