Re: [PATCH][RFC]: pte notifiers -- support for external page tables

Jack Steiner
2007-09-05T20:40:13Z

On Wed, Sep 05, 2007 at 07:38:48PM +0300, Avi Kivity wrote:
> Some hardware and software systems maintain page tables outside the normal
> Linux page tables, which reference userspace memory. This includes
> Infiniband, other RDMA-capable devices, and kvm (with a pending patch).
>

I like it.

We have 2 special devices with external TLBs that can
take advantage of this.

One suggestion - at least for what we need. Can the notifier be
registered against the mm_struct instead of (or in addition to) the
vma?

---jack