[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [PATCH] xen: don't require virtio with grants for non-PV guests
On 15.06.22 11:48, Juergen Gross wrote: Hello Juergen Commit fa1f57421e0b ("xen/virtio: Enable restricted memory access using Xen grant mappings") introduced a new requirement for using virtio devices: the backend now needs to support the VIRTIO_F_ACCESS_PLATFORM feature. This is an undue requirement for non-PV guests, as those can be operated with existing backends without any problem, as long as those backends are running in dom0. Per default allow virtio devices without grant support for non-PV guests. The setting can be overridden by using the new "xen_virtio_grant" command line parameter. Add a new config item to always force use of grants for virtio. Fixes: fa1f57421e0b ("xen/virtio: Enable restricted memory access using Xen grant mappings") Signed-off-by: Juergen Gross <jgross@xxxxxxxx> Thank you for the fix. I have tested it on Arm64 guest (XEN_HVM_DOMAIN), it works. With the "__init" fix (pointed out by Viresh) applied you can add my: Tested-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@xxxxxxxx> #Arm64 only [snip] -- Regards, Oleksandr Tyshchenko
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