From mboxrd@z Thu Jan 1 00:00:00 1970 From: Matthew Garrett Subject: Re: [PATCH -v2 0/4] EFI 1:1 mapping Date: Wed, 19 Jun 2013 17:05:23 +0100 Message-ID: <20130619160523.GA27832@srcf.ucam.org> References: <1371491416-11037-1-git-send-email-bp@alien8.de> <20130619125243.GD11209@gmail.com> <20130619130225.GA28311@pd.tnic> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20130619130225.GA28311-fF5Pk5pvG8Y@public.gmane.org> Sender: linux-efi-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Borislav Petkov Cc: Ingo Molnar , Linux EFI , Matt Fleming , X86 ML , LKML , Borislav Petkov List-Id: linux-efi@vger.kernel.org On Wed, Jun 19, 2013 at 03:02:25PM +0200, Borislav Petkov wrote: > On Wed, Jun 19, 2013 at 02:52:43PM +0200, Ingo Molnar wrote: > > I hope making it a weird boot option is not the end plan, there's > > little point in _not_ enabling 1:1 mappings by default eventually: > > the 1:1 mapping is supposed to emulate a "Windows compatible" EFI > > environment better and is expected to work around certain EFI runtime > > crashes. > > And yet there are the Macs which reportedly cannot stomach this. I suspect they'll be fine with having a 1:1 map, as long as we pass the high mappings via SetVirtualAddressMap(). -- Matthew Garrett | mjg59-1xO5oi07KQx4cg9Nei1l7Q@public.gmane.org