From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jack Steiner Date: Fri, 09 Feb 2007 02:16:04 +0000 Subject: Re: [PATCH 2/2] [IA64] Add phys_efi command line option Message-Id: <20070209021604.GA8616@sgi.com> List-Id: References: <20070207062420.GB29959@verge.net.au> In-Reply-To: <20070207062420.GB29959@verge.net.au> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-ia64@vger.kernel.org On Fri, Feb 09, 2007 at 09:41:37AM +0900, Horms wrote: > On Thu, Feb 08, 2007 at 01:48:56PM -0800, Jay Lan wrote: > > Horms wrote: > > > Hi, > > > > > > I am resending this patch, which builds on the patch sent earlier > > > in this thread to allow physical mode SAL/EFI to work. > > > > > > > Hi Horms, > > > > Do you plan to introduce this new option as a default to kexec in non- > > Linux<->Xen kexec situations? We are concerned because physical mode > > SAL/EFI calls do not currently work on SN platform. > > So far the only way that I know to make Linux<->Xen and Xen<->Linux > Linux kexec/kdump transitions work is to use this phys_efi technique. > I realise that it doesn't work on SN. But it does seem to me that > a solution that works on some platforms (e.g. Tiger) is better than > no solution at all. At some point in time, we may want to support XEN on our platform. Will we need to support phys_efi to make that work? If I understand your comment, phys_efi will never be required to kexec a kdump kernel from linux. Right?? -- jack