Re: [PATCH 1/2] xen/grant-table: remove gnttab_*transfer*() functions

[Juergen Gross <jgross@xxxxxxxx>]

On 15.03.22 00:37, Boris Ostrovsky wrote:
> On 3/11/22 5:34 AM, Juergen Gross wrote:
> > All grant table operations related to the "transfer" functionality
> > are unused currently. There have been users in the old days of the
> > "Xen-o-Linux" kernel, but those didn't make it upstream.
> >
> > So remove the "transfer" related functions.
>
> Do we need to assert somewhere that transfer flags are not set?
This would be an orthogonal change, right? My patch is just removing
never called functions.

In any case I believe checking those flags is the job of the hypervisor.
If an operation is illegal due to a transfer flag being set, it needs to
be rejected at hypervisor level.


Juergen

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