From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S267882AbUHEVcq (ORCPT ); Thu, 5 Aug 2004 17:32:46 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S267968AbUHEVbg (ORCPT ); Thu, 5 Aug 2004 17:31:36 -0400 Received: from ebiederm.dsl.xmission.com ([166.70.28.69]:28883 "EHLO ebiederm.dsl.xmission.com") by vger.kernel.org with ESMTP id S267964AbUHEVaF (ORCPT ); Thu, 5 Aug 2004 17:30:05 -0400 To: "Tolentino, Matthew E" Cc: "Grant Grundler" , "Randy.Dunlap" , fastboot@osdl.org, linux-ia64@vger.kernel.org, Jesse Barnes , linux-kernel@vger.kernel.org Subject: Re: [Fastboot] Re: [BROKEN PATCH] kexec for ia64 References: From: ebiederm@xmission.com (Eric W. Biederman) Date: 05 Aug 2004 15:29:09 -0600 In-Reply-To: Message-ID: User-Agent: Gnus/5.0808 (Gnus v5.8.8) Emacs/21.2 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org "Tolentino, Matthew E" writes: > >On Wed, Aug 04, 2004 at 08:14:55PM -0600, Eric W. Biederman wrote: > >> VGA/serial console devices rarely need to do be bus masters so they > >> should be fine. > > > >yeah - you are right. I wasn't thinking. > >Can anyone comment on UGA or other console devices? > > UGA is essentially a PCI device. It uses the EFI PCI I/O > protocol which gets glued to the kernels pci layer...at least in > a prototype. > > I haven't looked at the latest kexec patch. How is it handling > the call to EFI's SetVirtualAddressMap()? Is it part of the config > associated with kexec to do efi calls in physical mode only so that > it doesn't have to contend with potential follow-on invocations > resultant from "the next" kernel's initialization? It should be. So far all I have seen are tentative ia64 kexec patches. Eric