From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from gate.crashing.org (gate.crashing.org [63.228.1.57]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTPS id 4464FDE0BB for ; Sat, 2 Aug 2008 00:27:23 +1000 (EST) Message-Id: <26A28837-B944-4CA6-83B5-5466CF1EDBF3@kernel.crashing.org> From: Kumar Gala To: avorontsov@ru.mvista.com In-Reply-To: <20080801141306.GA29127@polina.dev.rtsoft.ru> Content-Type: text/plain; charset=US-ASCII; format=flowed; delsp=yes Mime-Version: 1.0 (Apple Message framework v926) Subject: Re: [RFC][PATCH 0/8] kexec/kdump support for ppc32 Date: Fri, 1 Aug 2008 09:21:02 -0500 References: <20080801141306.GA29127@polina.dev.rtsoft.ru> Cc: linuxppc-dev@ozlabs.org, Paul Mackerras List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Aug 1, 2008, at 9:13 AM, Anton Vorontsov wrote: > Hi all, > > I refreshed some Dale Farnsworth's kexec/kdump patches[1] against > the latest kernel, and here they are. > > There is a difference though. Dale's patches were using > kmap_atomic_pfn() to map oldmem memory, while for this patches > I took PPC64 approach to use ioremap(). This is done to be able > to support kdump on !HIGHMEM kernels. > > Also, please take a special look into 8/8 patch, there is a hunk > marked with "XXX:", which I don't quite understand for PPC64 case > (this hunk also persist in the original Dale's patch, and w/o it > the capturing kernel doesn't boot on ppc32). > > I'll try to refresh BookE support as soon as I'll find some BookE > board. > > The patchset includes: > > - Kexec support > > [PATCH 1/8] powerpc: set up OF properties for ppc32 kexec > [PATCH 2/8] powerpc: make default kexec/crash_kernel ops implicit > [PATCH 3/8] powerpc: remove default kexec/crash_kernel ops > assignments > > 2/8 and 3/8 patches are used to avoid adding lots of default ops > to the board files. > > - Kdump support > > [PATCH 4/8] powerpc: add the ability for a classic ppc kernel to be > loaded at 32M > [PATCH 5/8] powerpc: allow to ioremap RAM addresses for kdump > kernel on ppc32 > [PATCH 6/8] powerpc: set up OF properties for ppc32 kdump > [PATCH 7/8] powerpc: implement crash_setup_regs for ppc32 > [PATCH 8/8] powerpc: last bits to support kdump on ppc32 > > [1] http://ozlabs.org/pipermail/linuxppc-dev/2007-November/046739.html What's the state of the kexec tools for ppc32? - k