Re: [PATCH 4/9] x86/mm/tlb: Flush remote and local TLBs concurrently

From: Andy Lutomirski
Date: Tue Jun 25 2019 - 23:37:14 EST

On Wed, Jun 12, 2019 at 11:49 PM Nadav Amit <namit@xxxxxxxxxx> wrote:
> To improve TLB shootdown performance, flush the remote and local TLBs
> concurrently. Introduce flush_tlb_multi() that does so. The current
> flush_tlb_others() interface is kept, since paravirtual interfaces need
> to be adapted first before it can be removed. This is left for future
> work. In such PV environments, TLB flushes are not performed, at this
> time, concurrently.

Would it be straightforward to have a default PV flush_tlb_multi()
that uses flush_tlb_others() under the hood?