From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161545AbaKNR0t (ORCPT ); Fri, 14 Nov 2014 12:26:49 -0500 Received: from mail-lb0-f178.google.com ([209.85.217.178]:33892 "EHLO mail-lb0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161108AbaKNR0s (ORCPT ); Fri, 14 Nov 2014 12:26:48 -0500 MIME-Version: 1.0 In-Reply-To: <20141114172404.GF7475@pd.tnic> References: <20141112220058.GA5295@redhat.com> <3908561D78D1C84285E8C5FCA982C28F3292BAB4@ORSMSX114.amr.corp.intel.com> <3908561D78D1C84285E8C5FCA982C28F3292BD44@ORSMSX114.amr.corp.intel.com> <20141114103406.GA7475@pd.tnic> <20141114172404.GF7475@pd.tnic> From: Andy Lutomirski Date: Fri, 14 Nov 2014 09:26:26 -0800 Message-ID: Subject: Re: [RFC PATCH] x86, entry: Switch stacks on a paranoid entry from userspace To: Borislav Petkov Cc: Andi Kleen , "linux-kernel@vger.kernel.org" , X86 ML , Peter Zijlstra , "Luck, Tony" , Oleg Nesterov Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Nov 14, 2014 at 9:24 AM, Borislav Petkov wrote: > On Fri, Nov 14, 2014 at 09:18:51AM -0800, Andy Lutomirski wrote: >> Grr. Do you or Tony have any pointers for how to test this myself? I >> don't know enough about the acpi error injection thing, which I assume >> is that Tony is using. > > Maybe that would help: > > Documentation/acpi/apei/einj.txt > > provided your box's BIOS even has EINJ support ... > I was hoping for an actual worked-out example of what the parameters should be :) I'll see if my weird server-ish test machine can do this. --Andy > -- > Regards/Gruss, > Boris. > > Sent from a fat crate under my desk. Formatting is fine. > -- -- Andy Lutomirski AMA Capital Management, LLC