Re: [PATCH 0/7] KVM: Add a common API for range-based TLB invalidation

[Sean Christopherson <seanjc@google.com>]

On Thu, Jan 19, 2023, David Matlack wrote:
> This series introduces a common API for performing range-based TLB
> invalidation. This is then used to supplant
> kvm_arch_flush_remote_tlbs_memslot() and pave the way for two other
> patch series:
> 
> 1. https://lore.kernel.org/kvm/20230109215347.3119271-1-rananta@google.com/
> 
>   Adds ARM support for range-based TLB invalidation and needs a
>   mechanism to invoke it from common code. This series provides such a
>   mechanism via kvm_arch_flush_remote_tlbs_range().
> 
> 2. https://lore.kernel.org/kvm/20221208193857.4090582-1-dmatlack@google.com/
> 
>   Refactors the TDP MMU into common code, which requires an API for
>   range-based TLB invaliation.
> 
> This series is based on patches 29-33 from (2.), but I made some further
> cleanups after looking at it a second time.
> 
> Tested on x86_64 and ARM64 using KVM selftests.

Did a quick read through, didn't see anything I disagree with.

Is there any urgency to getting this merged?  If not, due to the dependencies
with x86 stuff queued for 6.3, and because of the cross-architecture changes, it
might be easiest to plan on landing this in 6.4.  That would allow Paolo to create
an immutable topic branch fairly early on.