Re: [PATCH] mm: Speed up mremap on large regions
From: Paolo Bonzini
Date: Fri Oct 12 2018 - 03:24:42 EST
On 12/10/2018 05:21, Jann Horn wrote:
> I don't know how this interacts with shadow paging implementations.
Shadow paging simply uses MMU notifiers and that does not assume that
PTE invalidation is atomic. The invalidate_range_start and
invalidate_range_end calls are not affected by Joel's patch, so it's ok
for KVM and also for other users of MMU notifiers.
Paolo