From mboxrd@z Thu Jan 1 00:00:00 1970 From: Juergen Gross Subject: Re: [PATCH] vmx: correct EIP value of task-state segment Date: Fri, 31 Jul 2009 14:18:01 +0200 Message-ID: <4A72E0F9.70902@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" , Kouya Shimura List-Id: xen-devel@lists.xenproject.org Keir Fraser wrote: > On 31/07/2009 10:34, "Kouya Shimura" wrote: > >>> The reference manuals are sketchy enough you may need to test out some task >>> switches on SVM and VMX hardware to make sure you make patches that really >>> do the right thing. >> Sorry, I don't have much time to test this. >> But the OS works fine with this patch. (of course, the OS is for native) >> I confirmed Windows(XP,2008Server) never use a task switch. > > They do on blue screen I believe. OTOH I suppose they don't come back from > it. I'll have to queue this up for testing myself. > > Is the "int 2" in that popular proprietary OS "BS2000" perchance? ;-) :-) No, it isn't. And we are not doing task switches. Juergen -- Juergen Gross Principal Developer Operating Systems TSP ES&S SWE OS6 Telephone: +49 (0) 89 636 47950 Fujitsu Technolgy Solutions e-mail: juergen.gross@ts.fujitsu.com Otto-Hahn-Ring 6 Internet: ts.fujitsu.com D-81739 Muenchen Company details: ts.fujitsu.com/imprint.html