[PATCH v2 2/7] KVM: arm64: Use kvm_arch_flush_remote_tlbs()

[Oliver Upton]

On Thu, Jan 26, 2023 at 10:40:20AM -0800, David Matlack wrote:
> Use kvm_arch_flush_remote_tlbs() instead of
> CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL. The two mechanisms solve the same
> problem, allowing architecture-specific code to provide a non-IPI
> implementation of remote TLB flushing.
> 
> Dropping CONFIG_HAVE_KVM_ARCH_TLB_FLUSH_ALL allows KVM to standardize
> all architectures on kvm_arch_flush_remote_tlbs() instead of maintaining
> two mechanisms.
> 
> Opt to standardize on kvm_arch_flush_remote_tlbs() since it avoids
> duplicating the generic TLB stats across architectures that implement
> their own remote TLB flush.
> 
> This adds an extra function call to the ARM64 kvm_flush_remote_tlbs()
> path, but that is a small cost in comparison to flushing remote TLBs.
> 
> No functional change intended.
> 
> Signed-off-by: David Matlack <dmatlack at google.com>

Acked-by: Oliver Upton <oliver.upton at linux.dev>

-- 
Thanks,
Oliver