From mboxrd@z Thu Jan 1 00:00:00 1970 From: "H. Peter Anvin" Subject: Re: lguest: unhandled trap 13 and CONFIG_MICROCODE_INTEL_EARLY Date: Wed, 08 May 2013 19:50:41 -0700 Message-ID: <518B0F01.60507@zytor.com> References: <1367450300.11532.32.camel@x61.thuisdomein> <87li7srb3r.fsf@rustcorp.com.au> <5187C369.5020902@zytor.com> <87mws7nzag.fsf@rustcorp.com.au> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <87mws7nzag.fsf-8n+1lVoiYb80n/F98K4Iww@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: lguest-bounces+glkvl-lguest=m.gmane.org-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org Sender: "Lguest" To: Rusty Russell Cc: xen-devel-GuqFBffKawuULHF6PoxzQEEOCMrvLtNR@public.gmane.org, Jeremy Fitzhardinge , lguest-uLR06cmDAlY/bJ5BZ2RsiQ@public.gmane.org, Thomas Gleixner , Ingo Molnar List-Id: xen-devel@lists.xenproject.org On 05/06/2013 10:18 PM, Rusty Russell wrote: > > All this stuff (OLPC and early microcode) probably belongs after we jump > to the platform handler: the microcode calls to native_cpuid() is a clue > that we're doing something *badly* wrong. > > It's easy enough for lguest to decode and skip the unsupported > instructions, though I've preferred not to do that. > Depends on the platform, but yes, it applies to native, CE4100, and Moorestown/SFI platforms, but not Xen or lguest, so that pretty much makes sense. -hpa