On Thu, Oct 17, 2024 at 10:46 PM Jason Gunthorpe <jgg@xxxxxxxxxx> wrote: > > On Thu, Oct 17, 2024 at 07:11:46PM +0200, David Hildenbrand wrote: > > On 17.10.24 18:47, Jason Gunthorpe wrote: > > > On Thu, Oct 17, 2024 at 10:58:29AM -0400, Peter Xu wrote: > > > > > > > My question was more torwards whether gmemfd could still expose the > > > > possibility to be used in VA forms to other modules that may not support > > > > fd+offsets yet. > > > > > > I keep hearing they don't want to support page pinning on a guestmemfd > > > mapping, so VA based paths could not work. > > > > For shared pages it absolutely must work. That's what I keep hearing :) > > Oh that's confusing. I assume non longterm pins desired on shared > pages though?? > > Jason For hugepage support to work, longterm pins on guest private pages need to be avoided [1], If this somehow was the cause of any confusion here. [1] https://lpc.events/event/18/contributions/1764/attachments/1409/3182/LPC%202024_%201G%20page%20support%20for%20guest_memfd.pdf (slide 12)
