Re: [Invitation] bi-weekly guest_memfd upstream call on 2026-08-06

On Tue, 2026-08-04 at 21:29 +0200, David Hildenbrand (Arm) wrote:
> Hi,
> 
> Our next guest_memfd upstream call is scheduled for today, Thursday,
> 2026-08-06 8:00 - 9:00am (GMT-07:00) Pacific Time - Vancouver.
> 
> In this meeting, David Woodhouse wants to discuss a solution to get VFIO flying
> with guest_memfd (I suppose now also for private memory! :) ), and we should
> sync on upstreaming of in-place conversion (and how to deal with LRU cache
> draining).

Sadly I'm not 100% sure I'll make it, although I'll try.

I've not found much time to work on this since posting v2; one thing I
did manage was to add some support for memory overcommit; taking pages
away and then reconstituting them on demand with async #PF in the
guest.

https://git.infradead.org/?p=users/dwmw2/linux.git;a=commitdiff;h=894dd0fcb34

Then I went down a rabbithole trying to remove individual pages from
the IOMMU on Arm64, which I think I need to shelve for now and tackle
as a separate project. It worked out OK on Intel and AMD.