On 13/04/17 18:24, Greg KH wrote: > On Thu, Apr 13, 2017 at 04:49:49PM +0200, Juergen Gross wrote: >> Revert commit 72a9b186292 ("xen: Remove event channel notification >> through Xen PCI platform device") as the original analysis was wrong >> that all the removed code isn't in use any more. As commit da72ff5bfcb0 >> ("partially revert xen: Remove event channel notification through Xen >> PCI platform device") reverted already some parts of it revert this >> commit, too. >> >> It is still necessary for old Xen versions (< 4.0) and for being able >> to run the Linux kernel as dom0 in a nested Xen environment. > > Is there a commit in Linus's tree that matches this revert as well? Not yet. I'm working on it. Juergen