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From: "Roger Pau Monné" <roger.pau@citrix.com>
To: Christian Lindig <christian.lindig@citrix.com>
Cc: Edwin Torok <edvin.torok@citrix.com>,
	"xen-devel@lists.xenproject.org" <xen-devel@lists.xenproject.org>,
	Ian Jackson <iwj@xenproject.org>, Wei Liu <wl@xen.org>,
	Andrew Cooper <Andrew.Cooper3@citrix.com>,
	George Dunlap <George.Dunlap@citrix.com>,
	Jan Beulich <jbeulich@suse.com>, Julien Grall <julien@xen.org>,
	Stefano Stabellini <sstabellini@kernel.org>,
	Anthony Perard <anthony.perard@citrix.com>,
	Juergen Gross <jgross@suse.com>, David Scott <dave@recoil.org>,
	Volodymyr Babchuk <Volodymyr_Babchuk@epam.com>
Subject: Re: [PATCH 0/6] gnttab: add per-domain controls
Date: Mon, 20 Sep 2021 09:26:29 +0200	[thread overview]
Message-ID: <YUg3pc9A5C4GTTeR@MacBook-Air-de-Roger.local> (raw)
In-Reply-To: <0D7E40CC-EA8F-4CE6-B4C7-A69C403BD4DF@citrix.com>

On Fri, Sep 17, 2021 at 06:06:42PM +0200, Christian Lindig wrote:
> 
> 
> > On 17 Sep 2021, at 16:46, Roger Pau Monne <roger.pau@citrix.com> wrote:
> > 
> > Hello,
> > 
> > The first two patches of this series allows setting the preisoutly host
> > wide command line `gnttab` option on a per domain basis. That means
> > selecting the max allowed grant table version and whether transitive
> > grants are allowed.
> > 
> > The last 4 patches attempt to implement support for creating guests
> > without grant table support at all. This requires some changes to
> > xenstore in order to map shared ring using foreign memory instead of
> > grant table.
> > 
> > Note that patch 5 will break the save format for xenstore records, and
> > should not be applied.
> 
> Has this relevance for the format used by oxenstored?

I'm no expert on oxenstored, but I think it has always mapped the
shared ring as foreign memory, and hence no changes are needed there.
AFAICT it also stores the mfn on the save format, so I think this is
all fine.

Should have mentioned it on the cover letter.

Thanks, Roger.


  reply	other threads:[~2021-09-20  7:26 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-17 15:46 [PATCH 0/6] gnttab: add per-domain controls Roger Pau Monne
2021-09-17 15:46 ` [PATCH 1/6] gnttab: allow setting max version per-domain Roger Pau Monne
2021-09-17 15:46 ` [PATCH 2/6] gnttab: allow per-domain control over transitive grants Roger Pau Monne
2021-09-20  9:32   ` Andrew Cooper
2021-09-20 11:45     ` Roger Pau Monné
2021-09-17 15:46 ` [PATCH 3/6] tools/console: use xenforeigmemory to map console ring Roger Pau Monne
2021-09-20 10:32   ` Ian Jackson
2021-09-17 15:46 ` [PATCH 4/6] tools/xenstored: use atexit to close interfaces Roger Pau Monne
2021-09-20  7:17   ` Roger Pau Monné
2021-09-20  9:22   ` Juergen Gross
2021-09-20 10:53     ` Roger Pau Monné
2021-09-20 10:57       ` Ian Jackson
2021-09-20 11:02         ` Juergen Gross
2021-09-20 12:21           ` Ian Jackson
2021-09-20 10:34   ` Ian Jackson
2021-09-20 10:39     ` Juergen Gross
2021-09-17 15:46 ` [PATCH DNA 5/6] tools/xenstored: restore support for mapping ring as foreign memory Roger Pau Monne
2021-09-20  8:24   ` Juergen Gross
2021-09-20 10:42     ` Roger Pau Monné
2021-09-20 10:51       ` Juergen Gross
2021-09-20 10:35   ` Ian Jackson
2021-09-17 15:46 ` [PATCH 6/6] gnttab: allow disabling grant table per-domain Roger Pau Monne
2021-09-17 16:06 ` [PATCH 0/6] gnttab: add per-domain controls Christian Lindig
2021-09-20  7:26   ` Roger Pau Monné [this message]
2021-09-20  8:24     ` Edwin Torok

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