From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from terminus.zytor.com ([2001:1868:205::10] helo=mail.zytor.com) by merlin.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1VuDJ0-0005WG-5u for kexec@lists.infradead.org; Sat, 21 Dec 2013 03:32:47 +0000 Message-ID: <52B50BBB.9070806@zytor.com> Date: Fri, 20 Dec 2013 19:32:11 -0800 From: "H. Peter Anvin" MIME-Version: 1.0 Subject: Re: [PATCH 4/6] kexec: A new system call, kexec_file_load, for in kernel kexec References: <20131121190350.GC17070@kroah.com> <20131121190620.GA25951@srcf.ucam.org> <20131121191305.GK16208@redhat.com> <20131121191907.GA26366@srcf.ucam.org> <20131122185706.GK4046@redhat.com> <87vbzju6ql.fsf@xmission.com> <20131125163920.GC23094@redhat.com> <87fvqj2vxz.fsf@xmission.com> <20131126142759.GA5473@redhat.com> <20131219125439.GA6379@lst.de> <20131220141917.GB27063@redhat.com> <87a9fvqfs4.fsf@xmission.com> <52B4D0C6.2000505@zytor.com> <87ioujf0ox.fsf@xmission.com> In-Reply-To: <87ioujf0ox.fsf@xmission.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: "Eric W. Biederman" Cc: Matthew Garrett , Kees Cook , Greg KH , kexec@lists.infradead.org, linux-kernel@vger.kernel.org, Peter Jones , Torsten Duwe , Vivek Goyal On 12/20/2013 05:32 PM, Eric W. Biederman wrote: > > Stuff and nonsense. bzImage is just an ugly wrapper around an ELF > image. > Not really. We put the ELF image in there to help Xen and presumably kexec, but there are actually quite a few issues with it... for one thing, as currently built there are megabytes of zeroes in it for no good reason. Even if you don't need the entry code, the additional metadata is meaningful. -hpa _______________________________________________ kexec mailing list kexec@lists.infradead.org http://lists.infradead.org/mailman/listinfo/kexec