On 01/12/2017 04:39 PM, Stefano Stabellini wrote: > The following commit: > > commit 72a9b186292d98494f222226cfd24a1621796209 > Author: KarimAllah Ahmed <karah...@amazon.de> > Date: Fri Aug 26 23:55:36 2016 +0200 > > xen: Remove event channel notification through Xen PCI platform device > > broke Linux when booting as Dom0 on Xen in a nested Xen environment (Xen > installed inside a Xen VM). In this scenario, Linux is a PV guest, but > at the same time it uses the platform-pci driver to receive > notifications from L0 Xen. vector callbacks are not available because L1 > Xen doesn't allow them. > > Partially revert the offending commit, by restoring IRQ based > notifications for PV guests only. I restored only the code which is > strictly needed and replaced the xen_have_vector_callback checks within > it with xen_pv_domain() checks. > > Signed-off-by: Stefano Stabellini <sstabell...@kernel.org>
Reviewed-by: Boris Ostrovsky <boris.ostrov...@oracle.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org https://lists.xen.org/xen-devel
