From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Roger_Pau_Monn=E9?= Subject: Re: Xen 4.3 development update CODE FREEZE HAS_BEGUN Date: Thu, 18 Apr 2013 16:50:06 +0200 Message-ID: <5170081E.9050405@citrix.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Stefano Stabellini Cc: George Dunlap , "xen-devel@lists.xen.org" List-Id: xen-devel@lists.xenproject.org On 18/04/13 13:30, Stefano Stabellini wrote: > On Tue, 16 Apr 2013, George Dunlap wrote: >> * Rationalized backend scripts >> owner: roger@citrix >> status: libxl hotplug sumbmitted. Protocol still needs to be finalized. >> prognosis: Good > > OK > >> * Scripts for driver domains (depends on backend scripts) >> owner: roger@citrix >> status: >> prognosis: Fair > > Are there going to make 4.3? Regarding "Rationalized backend scripts", or what I usually call new libxl hotplug interface, I think it could make it to 4.3. Here is a small list about the pros/cons of taking that from my POV: Cons: - Touches generic device addition/removal code, and domain creation/destruction. - It introduces a new interface that is well defined and that we plan to support, we have to be sure the interface is right. Pros: - All the code touched is exercised every time a domain/device is created/destroyed, so the test system should be able to detect any problems with that easily. - Brings new functionality (iSCSI disks), which is not present in libxl/xl, and should be considered a regression from xm. - The new hotplug interface could be released as a tech preview, guaranteeing us that we could still change it if we feel it doesn't really suit our needs (I think it's best to have it as a tech preview rather than not having it at all). - The new iSCSI libxl/xl disk functionality could also be considered a tech preview, again it's best to have it like that rather than not having it at all, I've heard quite a lot of people asking about iSCSI support in Xen.