Messages in this thread | | | Date | Tue, 15 Mar 2022 07:10:19 +0100 | Subject | Re: [PATCH 1/2] xen/grant-table: remove gnttab_*transfer*() functions | From | Juergen Gross <> |
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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 [unhandled content-type:application/pgp-keys][unhandled content-type:application/pgp-signature] | |