From mboxrd@z Thu Jan 1 00:00:00 1970 From: Julien Grall Subject: Re: [PATCH 0/2] xen: Allow xen tools to run in guest using 64K page granularity Date: Thu, 25 Jun 2015 15:10:58 +0100 Message-ID: <558C0BF2.2070007@citrix.com> References: <1431345336-5476-1-git-send-email-julien.grall@citrix.com> <20150625102147.GC6545@zion.uk.xensource.com> <1435231406.32500.40.camel@citrix.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta5.messagelabs.com ([195.245.231.135]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1Z87s5-0006kV-3s for xen-devel@lists.xenproject.org; Thu, 25 Jun 2015 14:11:17 +0000 In-Reply-To: <1435231406.32500.40.camel@citrix.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ian Campbell , Wei Liu Cc: Julien Grall , xen-devel@lists.xenproject.org, tim@xen.org, ian.jackson@eu.citrix.com, stefano.stabellini@citrix.com List-Id: xen-devel@lists.xenproject.org Hi, On 25/06/2015 12:23, Ian Campbell wrote: > On Thu, 2015-06-25 at 11:21 +0100, Wei Liu wrote: >> On Mon, May 11, 2015 at 12:55:34PM +0100, Julien Grall wrote: >>> Hi all, >>> >>> This small series are the only changes required in Xen in order to run a guest >>> using 64K page granularity on top of an unmodified Xen. >>> >>> I'd like feedback from maintainers tools to know if it might be worth to >>> introduce a function xc_pagesize() replicating the behavior of getpagesize() >>> for Xen. >>> >> >> Can we start with documenting the ABI (?) for communicating between >> guests with different page sizes? > > We should certainly make it clearer what things are in terms of "Xen ABI > page size" vs "the guest's page size" and other things. Don't we already say somewhere that the page granularity for the hypercall (though I haven't found it). I can send a follow-up to clarify the page granularity for each PV protocol. Regards, -- Julien Grall