On Thu, Apr 13, 2017 at 03:06:53PM +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. > > 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. What is the commit id of this revert in Linus's tree? thanks, greg k-h