From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Hopwood Subject: Re: Porting of Guest OS Date: Fri, 31 Dec 2004 07:40:33 +0000 Message-ID: <41D50271.7050806@blueyonder.co.uk> References: Reply-To: david.nospam.hopwood@blueyonder.co.uk Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Sender: xen-devel-admin@lists.sourceforge.net Errors-To: xen-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: xen-devel@lists.sourceforge.net List-Id: xen-devel@lists.xenproject.org Ronald G. Minnich wrote: > On Thu, 30 Dec 2004, Amitabh Tamhane wrote: > >>During boot-up: >>1) Applying Intel IA32 Microcode update: insmod: >>/lib/modules/2.6.5-7.97-smp/kernel/arch/i386/kernel/microcode.o: insmod >>char-major-10-184 failed > > is it safe to assume that code in Ring 1 can't upgrade microcode :-)? > I'd say that the microcode module would surprise me if it worked. It should be possible to make it work by using the hypervisor interface equivalents of rdmsr/wrmsr. See section 9.11 of the IA32 architecture manual Volume 3. Does DOM0 always run on all physical CPU cores? -- David Hopwood ------------------------------------------------------- The SF.Net email is sponsored by: Beat the post-holiday blues Get a FREE limited edition SourceForge.net t-shirt from ThinkGeek. It's fun and FREE -- well, almost....http://www.thinkgeek.com/sfshirt