Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753976AbaA3WTz (ORCPT ); Thu, 30 Jan 2014 17:19:55 -0500 Received: from relay1.sgi.com ([192.48.179.29]:55422 "EHLO relay.sgi.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753294AbaA3WTy (ORCPT ); Thu, 30 Jan 2014 17:19:54 -0500 Date: Thu, 30 Jan 2014 16:19:50 -0600 From: Alex Thorlton To: Borislav Petkov Cc: "H. Peter Anvin" , Matt Fleming , Russ Anderson , linux-kernel@vger.kernel.org Subject: Re: [BUG] Linux 3.14 fails to boot with new EFI changes Message-ID: <20140130221950.GJ3105@sgi.com> References: <52E2ADB1.2030007@zytor.com> <20140124183730.GC11788@pd.tnic> <20140124184842.GD11788@pd.tnic> <20140124191709.GT18196@sgi.com> <20140127222129.GK6839@pd.tnic> <20140128110552.GA815@pd.tnic> <20140128200754.GZ18196@sgi.com> <20140128225905.GN815@pd.tnic> <20140128234036.GB18196@sgi.com> <20140129141822.GC24887@pd.tnic> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20140129141822.GC24887@pd.tnic> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Re-adding lkml. Here's what we've got as far as your questions go (snipped from an e-mail from Russ): > * what kind of a pointer is that, physical address, or? The quick answer is I think it is a virtual address, because it does not work in physical mode. If you ever see "virtefi" on the RHEL bootline it is because RH switched the default to physical mode, which caused UV to not boot. "virtefi" forced it back to virtual mode. > * does it get switched to a virtual address after > SetVirtualAddressMap()? I believe SetVirtualAddressMap() creates the virtual mappings, but I would have to look at the code to be sure. > * Which region in your UEFI map contains that function, what are the > modalities about mapping it? Not sure about the region. The MMRs are in a uncached range and the functions are cached marked executable. But have to double check on that. > * Anything else I should know? Probably, but nothing that's jumping out at us right now :) Let us know if you need anything else. Thanks! - Alex -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/