Re: [Xen-devel] [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality

[Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>]

On 09/08/2017 10:48 AM, Juergen Gross wrote:
> As there is currently no user for sub-page grants or transient grants
> remove that functionality. This at once makes it possible to switch
> from grant v2 to grant v1 without restrictions, as there is no loss of
> functionality other than the limited frame number width related to
> the switch.

But isn't that ABI violation? v2 is expected to support this (XSAs
notwithstanding)

-boris

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