Hi Julien, On Fri, Jun 17, 2022 at 10:16 AM Julien Grall <[email protected]> wrote: > > Hi Jens, > > On 16/06/2022 23:37, Jens Wiklander wrote: > > On Tue, Jun 14, 2022 at 07:47:18PM +0000, Volodymyr Babchuk wrote: > >> > >> Hello Jens, > >> > >> Sorry for late review, I was busy with internal projects. > >> > >> This is preliminary review. I gave up at scatter-gather operations. Need > >> more time to review them properly. > > > > No problem, thanks for taking the time. > > > >> > >> One thing that bothers me is that Xen is non-preemptive and there are > >> plenty potentially long-running operations. > > > > There's room to deal with that in the FF-A specification. These scatter > > gather operation are quite complicated so I started with the minimum. We > > can as a future optimization address the problem with long running > > operations. > > I would be OK to defer this work. However, I think this should be > written down as Xen community will not be able to security support until > we resolved the known places where a vCPU may hog pCPU longer than > necessary. > > This reminds me that this series doesn't add a support statement for the > new subsystem in SUPPORT.md. AFAICT, this should be tech preview for now.
I'll add an entry for this. Thanks, Jens
