From mboxrd@z Thu Jan 1 00:00:00 1970 From: Borislav Petkov Subject: Re: [PATCH -v2 0/4] EFI 1:1 mapping Date: Thu, 20 Jun 2013 19:01:24 +0200 Message-ID: <20130620170124.GA19877@pd.tnic> References: <20130619160804.GB27832@srcf.ucam.org> <20130620091321.GB6811@gmail.com> <20130620091537.GA17159@srcf.ucam.org> <20130620092237.GA6943@gmail.com> <20130620093337.GI32694@pd.tnic> <20130620094446.GA17882@srcf.ucam.org> <1371740019.2372.3.camel@dabdike> <20130620162916.GA25727@srcf.ucam.org> <1371746775.2372.11.camel@dabdike> <20130620165426.GB26214@srcf.ucam.org> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Return-path: Content-Disposition: inline In-Reply-To: <20130620165426.GB26214@srcf.ucam.org> Sender: linux-kernel-owner@vger.kernel.org To: Matthew Garrett Cc: James Bottomley , Ingo Molnar , Linux EFI , Matt Fleming , X86 ML , LKML , Borislav Petkov List-Id: linux-efi@vger.kernel.org On Thu, Jun 20, 2013 at 05:54:26PM +0100, Matthew Garrett wrote: > On Thu, Jun 20, 2013 at 09:46:15AM -0700, James Bottomley wrote: > > > Unless you can think of the way out of this, we seem to have the stark > > choice of behave like windows or allow kexec. For the server market, > > kexec wins, so either we find a way not to have to make the choice or we > > do something automatic to make it fairly painless. > > hpa suggested ensuring that UEFI regions are mapped at fixed high > offsets. Someone who cares about kexec should probably make that happen. If we can detect the Macs, we can make this decision automatic. And since no Mac boots windoze, a single DMI check of the sort "if (Mac)" should suffice. -- Regards/Gruss, Boris. Sent from a fat crate under my desk. Formatting is fine. --