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SubjectRe: [PATCH] virt: vbox: Implement passing requestor info to the host for VirtualBox 6.0.x
On Wed, Mar 20, 2019 at 10:35:19AM +0100, Hans de Goede wrote:
> VirtualBox 6.0.x has a new feature where the guest kernel driver passes
> info about the origin of the request (e.g. userspace or kernelspace) to
> the hypervisor.
>
> If we do not pass this information then when running the 6.0.x userspace
> guest-additions tools on a 6.0.x host, some requests will get denied
> with a VERR_VERSION_MISMATCH error, breaking vboxservice.service and
> the mounting of shared folders marked to be auto-mounted.
>
> This commit implements passing the requestor info to the host, fixing this.
>
> Cc: stable@vger.kernel.org

This feels like support for a "new feature", so why would this need to
go to older kernels?

It's not our fault that vb implemented a non-backwards-compatible change
for their new release, right? So why should we be forced to add new
features to stable kernels?

I have no problem to add this for 5.2, but not for older stuff.

thanks,

greg k-h

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