From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: [Patch] continue_hypercall_on_cpu rework using tasklets Date: Thu, 15 Apr 2010 08:31:39 +0200 Message-ID: <4BC6B2CB.8090506@ts.fujitsu.com> References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Keir Fraser Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: > On 14/04/2010 09:04, "Juergen Gross" wrote: > >>> There can be only one nested invocation on any given pcpu, since a running >>> invocation is never preempted. Hence on entry to c_h_o_c() you can check a >>> per-cpu variable to see whether this invocation is nesting, or not. And if >>> it is, that variable can be a pointer to an info structure which includes a >>> pointer to the invoking vcpu. >> Okay, attached is the modified patch again. > > I cleaned up some more and applied as xen-unstable:21165 and > xen-unstable:21166. Thanks. Unfortunately, your modifications are not working. Microcode update hangs. My version worked without problems. Juergen -- Juergen Gross Principal Developer Operating Systems TSP ES&S SWE OS6 Telephone: +49 (0) 89 3222 2967 Fujitsu Technology Solutions e-mail: juergen.gross@ts.fujitsu.com Domagkstr. 28 Internet: ts.fujitsu.com D-80807 Muenchen Company details: ts.fujitsu.com/imprint.html