From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from cavan.codon.org.uk ([2a00:1098:0:80:1000:c:0:1]) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VUexO-0006b5-BW for kexec@lists.infradead.org; Fri, 11 Oct 2013 15:48:50 +0000 Date: Fri, 11 Oct 2013 16:48:05 +0100 From: Matthew Garrett Subject: Re: kexec: Clearing registers just before jumping into purgatory Message-ID: <20131011154805.GB30181@srcf.ucam.org> References: <20131011092837.GZ3626@debian70-amd64.local.net-space.pl> <877gdkce6s.fsf@tw-ebiederman.twitter.com> <20131011110455.GA3626@debian70-amd64.local.net-space.pl> <20131011125206.GA2772@redhat.com> <20131011153727.GA30181@srcf.ucam.org> <20131011154450.GB2772@redhat.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20131011154450.GB2772@redhat.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "kexec" Errors-To: kexec-bounces+dwmw2=twosheds.infradead.org@lists.infradead.org To: Vivek Goyal Cc: keir@xen.org, keescook@chromium.org, Daniel Kiper , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, xen-devel@lists.xen.org, hbabu@us.ibm.com, ebiederm@xmission.com, jbeulich@suse.com, hpa@linux.intel.com, david.vrabel@citrix.com On Fri, Oct 11, 2013 at 11:44:50AM -0400, Vivek Goyal wrote: > Just Curious. How is it useful. IOW, what's your use case of booting a new > kernel and then jumping back. I'm kexecing into a kernel with a modified /dev/mem, modifying the original kernel and then jumping back into it. -- Matthew Garrett | mjg59@srcf.ucam.org _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec