From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752751Ab1HKPOm (ORCPT ); Thu, 11 Aug 2011 11:14:42 -0400 Received: from arkanian.console-pimps.org ([212.110.184.194]:50233 "EHLO arkanian.console-pimps.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751314Ab1HKPOl (ORCPT ); Thu, 11 Aug 2011 11:14:41 -0400 Subject: Re: [PATCH 0/9] x86 EFI boot stub From: Matt Fleming To: Maarten Lankhorst Cc: linux-kernel@vger.kernel.org In-Reply-To: <4E43D3AE.70901@gmail.com> References: <1313060386-4858-1-git-send-email-matt@console-pimps.org> <4E43D3AE.70901@gmail.com> Content-Type: text/plain; charset="UTF-8" Date: Thu, 11 Aug 2011 16:14:38 +0100 Message-ID: <1313075678.3436.69.camel@mfleming-mobl1.ger.corp.intel.com> Mime-Version: 1.0 X-Mailer: Evolution 2.32.2 (2.32.2-1.fc14) Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2011-08-11 at 15:05 +0200, Maarten Lankhorst wrote: > On 08/11/2011 12:59 PM, Matt Fleming wrote: > > From: Matt Fleming > > > > This series adds support for an EFI boot stub, similar to the existing > > BIOS boot stub. The result is that you can boot a bzImage on an EFI > > machine without the use of a boot loader by making the bzImage appear > > to the EFI firmware to be an EFI application. Also, a single bzImage > > can be booted on either a BIOS or EFI machine. > > > > Using the EFI boot stub has the advantage that the kernel is > > responsible for configuring the machine to the point where we can > > fully boot the kernel, so we are no longer at the mercy of the boot > > loader. > > > Fails to boot here. I thought changing characteristics from 0x60500020 to 0xe0500020 would help, but no. :/ > This change would make the code section writable. Thanks for testing out the patches Maarten! > FileAlignment you use is probably wrong, I think it should be 0x200 not 0x2000 . Yep, thanks. That looks like a typo. > Maybe you need to add a data section and fix SizeOfInitializedData too? Hmm.. possibly. Is this on x86-64? > It just hangs on a blinking cursor, no idea if it actually started executing anything yet or not, since nothing is printed out. Hmm.. do you have early printk enabled? Can you hook up a serial console to this machine? -- Matt Fleming, Intel Open Source Technology Center