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

From	Boris Ostrovsky <boris.ostrovsky@oracle.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality
Date	2017-09-12 17:50 +0200
Message-ID	<uoVBN-37Z-55@gated-at.bofh.it> (permalink)
References	<unu0V-Sv-3@gated-at.bofh.it> <unu0W-Sv-15@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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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Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-12 17:50 +0200
  Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Juergen Gross <jgross@suse.com> - 2017-09-12 18:00 +0200
    Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Juergen Gross <jgross@suse.com> - 2017-09-12 18:10 +0200
      Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-12 18:30 +0200
        Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Juergen Gross <jgross@suse.com> - 2017-09-12 20:20 +0200
          Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-13 15:30 +0200
            Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Juergen Gross <jgross@suse.com> - 2017-09-13 15:40 +0200
              Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-13 16:00 +0200
                Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Juergen Gross <jgross@suse.com> - 2017-09-13 16:50 +0200
                Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-13 18:30 +0200
                Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Juergen Gross <jgross@suse.com> - 2017-09-14 10:20 +0200
    Re: [PATCH 2/4] xen: limit grant v2 interface to the v1 functionality Boris Ostrovsky <boris.ostrovsky@oracle.com> - 2017-09-12 18:10 +0200

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