[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-devel] [PATCH v2] partially revert "xen: Remove event channel notification through Xen PCI platform device"
On 01/13/2017 01:26 PM, Stefano Stabellini wrote: > On Fri, 13 Jan 2017, Boris Ostrovsky wrote: >> On 01/12/2017 04:39 PM, Stefano Stabellini wrote: >>> The following commit: >>> >>> commit 72a9b186292d98494f222226cfd24a1621796209 >>> Author: KarimAllah Ahmed <karahmed@xxxxxxxxx> >>> 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 <sstabellini@xxxxxxxxxx> >> Reviewed-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx> > Applied to xentip/for-linus-4.10, improving the commit message as > suggested before. > > Do you plan on sending out another pull request for 4.10? Juergen? BTW, this probably wants to go to 4.9-stable too? -boris _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx https://lists.xen.org/xen-devel
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