From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from list by lists.gnu.org with archive (Exim 4.71) id 1VsVD5-0000dv-W6 for mharc-grub-devel@gnu.org; Mon, 16 Dec 2013 05:15:35 -0500 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45245) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VsJlh-0000pQ-Lh for grub-devel@gnu.org; Sun, 15 Dec 2013 17:02:42 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VsJlZ-0005f6-83 for grub-devel@gnu.org; Sun, 15 Dec 2013 17:02:33 -0500 Received: from mail-pd0-x22f.google.com ([2607:f8b0:400e:c02::22f]:65461) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VsJlY-0005en-Rn for grub-devel@gnu.org; Sun, 15 Dec 2013 17:02:25 -0500 Received: by mail-pd0-f175.google.com with SMTP id w10so4545161pde.20 for ; Sun, 15 Dec 2013 14:02:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=sender:date:from:to:cc:subject:message-id:references:mime-version :content-type:content-disposition:content-transfer-encoding :in-reply-to:user-agent; bh=4t/fNHtwagpvQNm2g7zSmj5wU5qwNsxjGJivZ8ppBnw=; b=KmOOzY9WPjUOdP7F8ge1FZSCA09Wj4tN2FKwzSk0zSagDoHBSoE6tg4eqrnSOTMdux Ao2DD5OePIRA9Hz185hz9imnHlFAuEAn0/QIx3qKmSXJnCeP+IZJY/CVCsWItJ4baL0S F5BdO/7Nol0IldbwG/vwzK4gzuMmkDMk0S5Veib1LsPvTkfaQ2+F0btCWNzPbwCyInW8 UpNb5zlr73ra3pU1fJkbAgzSrOILHXfcljD2G/DuliPfSkyw69DIh/giZN2ZotWvjoJI 9Pl6oJ+pUkrAyCbLao0FXV6ijO2DYo8pHCoowKefbMolf6h0kgaow30tUwWN9ahh2hxN YvWg== X-Received: by 10.68.172.65 with SMTP id ba1mr16612905pbc.18.1387144943093; Sun, 15 Dec 2013 14:02:23 -0800 (PST) Received: from mswilson@gmail.com (54-240-196-169.amazon.com. [54.240.196.169]) by mx.google.com with ESMTPSA id i10sm29156177pat.11.2013.12.15.14.02.19 for (version=TLSv1 cipher=RC4-SHA bits=128/128); Sun, 15 Dec 2013 14:02:21 -0800 (PST) Sender: Matt Wilson Received: by mswilson@gmail.com (sSMTP sendmail emulation); Sun, 15 Dec 2013 14:02:18 -0800 Date: Sun, 15 Dec 2013 14:02:18 -0800 From: Matt Wilson To: Ian Campbell Subject: Re: [Xen-devel] Grant table version Message-ID: <20131215220216.GB993@u109add4315675089e695.ant.amazon.com> References: <526EA78A.6020104@gmail.com> <526EAF78.2070408@citrix.com> <5270FAF6.30600@gmail.com> <1383234503.25018.117.camel@dagon.hellion.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: <1383234503.25018.117.camel@dagon.hellion.org.uk> User-Agent: Mutt/1.5.21 (2010-09-15) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2607:f8b0:400e:c02::22f X-Mailman-Approved-At: Mon, 16 Dec 2013 05:15:34 -0500 Cc: Vladimir =?utf-8?Q?'=CF=86-coder=2Fphcoder'?= Serbinenko , "xen-devel@lists.xen.org" , The development of GRUB 2 , Andrew Cooper X-BeenThere: grub-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list Reply-To: The development of GNU GRUB List-Id: The development of GNU GRUB List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 15 Dec 2013 22:02:42 -0000 On Thu, Oct 31, 2013 at 03:48:23PM +0000, Ian Campbell wrote: > On Wed, 2013-10-30 at 13:26 +0100, Vladimir 'φ-coder/phcoder' Serbinenko > wrote: > > > > From this point of view, the safe course of action is to use whichever > > > type of grants you want, then tear down all the front/back pairs, and > > > reset the version to v1 before handing off. > > > > > Thank you, that's what I did now. > > FWIW I don't think there is any need for pvgrub to be using the sorts of > advanced features enabled by gnttab v2. Even Linux doesn't use most > (any?) of them ;-) Indeed. Vladimir, for maximum compatibility with various versions of Xen, it would probably be best to use gnttab v1 only. --msw