From mboxrd@z Thu Jan 1 00:00:00 1970 From: Boris Ostrovsky Subject: Re: PV-vNUMA issue: topology is misinterpreted by the guest Date: Fri, 24 Jul 2015 12:44:52 -0400 Message-ID: <55B26B84.1000101@oracle.com> References: <55AFAC34.1060606@oracle.com> <55B070ED.2040200@suse.com> <1437660433.5036.96.camel@citrix.com> <55B21364.5040906@suse.com> <1437749076.4682.47.camel@citrix.com> <55B25650.4030402@suse.com> <55B258C9.4040400@suse.com> <1437753509.4682.78.camel@citrix.com> <20150724160948.GA2067@l.oracle.com> <55B26570.1060008@suse.com> <20150724162911.GC2220@l.oracle.com> <55B26A45.2050402@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; Format="flowed" Content-Transfer-Encoding: 7bit Return-path: Received: from mail6.bemta3.messagelabs.com ([195.245.230.39]) by lists.xen.org with esmtp (Exim 4.72) (envelope-from ) id 1ZIg6R-0004FV-1A for xen-devel@lists.xenproject.org; Fri, 24 Jul 2015 16:45:43 +0000 In-Reply-To: <55B26A45.2050402@suse.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: Juergen Gross , Konrad Rzeszutek Wilk Cc: Elena Ufimtseva , Wei Liu , Andrew Cooper , Dario Faggioli , David Vrabel , Jan Beulich , "xen-devel@lists.xenproject.org" List-Id: xen-devel@lists.xenproject.org On 07/24/2015 12:39 PM, Juergen Gross wrote: > > > I don't say mangling cpuids can't solve the scheduling problem. It > surely can. But it can't solve the scheduling problem without hiding > information like number of sockets or cores which might be required > for license purposes. If we don't care, fine. > (this is somewhat repeating the email I just sent) Why can's we construct socket/core info with CPUID (and *possibly* ACPI changes) that we present a reasonable (licensing-wise) picture? Can you suggest an example where it will not work and then maybe we can figure something out? -boris