On Tue, Dec 07, 2021 at 03:00:31PM +0100, Jiri Denemark wrote:
Userfaultfd is by default allowed only for privileged processes. Since libvirt runs QEMU unprivileged, we need to enable unprivileged access to userfaultfd to enable post-copy migration.
https://bugzilla.redhat.com/show_bug.cgi?id=1945420
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Notes: If you wonder about the 60-* prefix of the installed sysctl file, we already install 60-libvirtd.conf so I think it makes sense to use the same prefix for all sysctl configuration installed by libvirt.
Yep, 50-* is often used by common distro defaults, so 60 makes sense and leaves space for users to override. Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|