From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3qQT1203fKzDq70 for ; Thu, 17 Mar 2016 10:56:54 +1100 (AEDT) Received: from mail-pf0-x232.google.com (mail-pf0-x232.google.com [IPv6:2607:f8b0:400e:c00::232]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3qQT113ZCvz9t3Y for ; Thu, 17 Mar 2016 10:56:53 +1100 (AEDT) Received: by mail-pf0-x232.google.com with SMTP id 124so94661181pfg.0 for ; Wed, 16 Mar 2016 16:56:53 -0700 (PDT) Subject: Re: [v3,1/8] powerpc: Create a helper for getting the kernel toc value To: Torsten Duwe , Michael Ellerman References: <3qNsms00H7z9snl@ozlabs.org> <1458123799.27361.3.camel@ellerman.id.au> <20160316145851.GA15870@lst.de> Cc: pmladek@suse.com, jeyu@redhat.com, Jiri Kosina , linux-kernel@vger.kernel.org, rostedt@goodmis.org, kamalesh@linux.vnet.ibm.com, linuxppc-dev@ozlabs.org, live-patching@vger.kernel.org, mbenes@suse.cz From: Balbir Singh Message-ID: <56E9F2BD.2050504@gmail.com> Date: Thu, 17 Mar 2016 10:56:45 +1100 MIME-Version: 1.0 In-Reply-To: <20160316145851.GA15870@lst.de> Content-Type: text/plain; charset=utf-8 List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On 17/03/16 01:58, Torsten Duwe wrote: > On Wed, Mar 16, 2016 at 09:23:19PM +1100, Michael Ellerman wrote: >> Sure. I'll try and get something working, though this merge window is not >> starting well so I may not get time for a few weeks :) > Do you already have something in mind? > Can you give us a hint? > > We need extra space in the stack, it can be on top of the stack with a pointer in PACA, we could use a fixed set size stack for only LR restore, if required TOC restore, but I think we only need LR space Balbir Singh.