From: "H. Peter Anvin" <hpa@zytor.com>
To: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>, Torsten Duwe <duwe@lst.de>,
Matthew Garrett <mjg59@srcf.ucam.org>, Greg KH <greg@kroah.com>,
linux-kernel@vger.kernel.org, kexec@lists.infradead.org,
Peter Jones <pjones@redhat.com>,
Kees Cook <keescook@chromium.org>
Subject: Re: [PATCH 4/6] kexec: A new system call, kexec_file_load, for in kernel kexec
Date: Fri, 20 Dec 2013 19:32:11 -0800 [thread overview]
Message-ID: <52B50BBB.9070806@zytor.com> (raw)
In-Reply-To: <87ioujf0ox.fsf@xmission.com>
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
next prev parent reply other threads:[~2013-12-21 3:32 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-20 17:50 [PATCH 0/6] kexec: A new system call to allow in kernel loading Vivek Goyal
2013-11-20 17:50 ` [PATCH 1/6] kexec: Export vmcoreinfo note size properly Vivek Goyal
2013-11-21 18:59 ` Greg KH
2013-11-21 19:08 ` Vivek Goyal
2013-11-20 17:50 ` [PATCH 2/6] kexec: Move segment verification code in a separate function Vivek Goyal
2013-11-20 17:50 ` [PATCH 3/6] resource: Provide new functions to walk through resources Vivek Goyal
2013-11-20 17:50 ` [PATCH 4/6] kexec: A new system call, kexec_file_load, for in kernel kexec Vivek Goyal
2013-11-21 19:03 ` Greg KH
2013-11-21 19:06 ` Matthew Garrett
2013-11-21 19:13 ` Vivek Goyal
2013-11-21 19:19 ` Matthew Garrett
2013-11-21 19:24 ` Vivek Goyal
2013-11-22 18:57 ` Vivek Goyal
2013-11-23 3:39 ` Eric W. Biederman
2013-11-25 16:39 ` Vivek Goyal
2013-11-26 12:23 ` Eric W. Biederman
2013-11-26 14:27 ` Vivek Goyal
2013-12-19 12:54 ` Torsten Duwe
2013-12-20 14:19 ` Vivek Goyal
2013-12-20 23:11 ` Eric W. Biederman
2013-12-20 23:20 ` Kees Cook
2013-12-21 11:38 ` Torsten Duwe
2014-01-02 20:39 ` Vivek Goyal
2014-01-02 20:56 ` H. Peter Anvin
2014-01-06 21:33 ` Josh Boyer
2014-01-07 4:22 ` H. Peter Anvin
2013-12-20 23:20 ` H. Peter Anvin
2013-12-21 1:32 ` Eric W. Biederman
2013-12-21 3:32 ` H. Peter Anvin [this message]
2013-12-21 12:15 ` Torsten Duwe
2013-11-21 19:16 ` Vivek Goyal
2013-11-22 1:03 ` Kees Cook
2013-11-22 2:13 ` Vivek Goyal
2013-11-22 20:42 ` Jiri Kosina
2014-01-17 19:17 ` Vivek Goyal
2013-11-29 3:10 ` Baoquan He
2013-12-02 15:27 ` WANG Chao
2013-12-02 15:44 ` Vivek Goyal
2013-12-04 1:35 ` Baoquan He
2013-12-04 17:19 ` Vivek Goyal
2013-12-04 1:56 ` Baoquan He
2013-12-04 8:19 ` Baoquan He
2013-12-04 17:32 ` Vivek Goyal
2013-11-20 17:50 ` [PATCH 5/6] kexec-bzImage: Support for loading bzImage using 64bit entry Vivek Goyal
2013-11-21 19:07 ` Greg KH
2013-11-21 19:21 ` Vivek Goyal
2013-11-22 15:24 ` H. Peter Anvin
2013-11-28 11:35 ` Baoquan He
2013-12-02 15:36 ` Vivek Goyal
2013-11-20 17:50 ` [PATCH 6/6] kexec: Support for Kexec on panic using new system call Vivek Goyal
2013-11-28 11:28 ` Baoquan He
2013-12-02 15:30 ` Vivek Goyal
2013-12-04 1:51 ` Baoquan He
2013-12-04 17:20 ` Vivek Goyal
2013-12-04 1:41 ` Baoquan He
2013-12-04 17:19 ` Vivek Goyal
2013-11-21 18:58 ` [PATCH 0/6] kexec: A new system call to allow in kernel loading Greg KH
2013-11-21 19:07 ` Vivek Goyal
2013-11-21 19:46 ` Vivek Goyal
2013-11-21 19:06 ` Geert Uytterhoeven
2013-11-21 19:14 ` Vivek Goyal
2013-11-21 23:07 ` Eric W. Biederman
2013-11-22 1:28 ` H. Peter Anvin
2013-11-22 2:35 ` Vivek Goyal
2013-11-22 2:40 ` H. Peter Anvin
2013-11-22 1:55 ` Vivek Goyal
2013-11-22 9:09 ` Geert Uytterhoeven
2013-11-22 13:30 ` Jiri Kosina
2013-11-22 13:46 ` Vivek Goyal
2013-11-22 13:50 ` Jiri Kosina
2013-11-22 15:33 ` Vivek Goyal
2013-11-22 17:45 ` Kees Cook
2013-11-22 13:43 ` Vivek Goyal
2013-11-22 15:25 ` Geert Uytterhoeven
2013-11-22 15:33 ` Jiri Kosina
2013-11-22 15:57 ` Eric Paris
2013-11-22 16:04 ` Jiri Kosina
2013-11-22 16:08 ` Vivek Goyal
2013-11-22 13:34 ` Eric W. Biederman
2013-11-22 14:19 ` Vivek Goyal
2013-11-22 19:48 ` Greg KH
2013-11-23 3:23 ` Eric W. Biederman
2013-12-04 19:34 ` Vivek Goyal
2013-12-05 4:10 ` Eric W. Biederman
2013-11-25 10:04 ` Michael Holzheu
2013-11-25 15:36 ` Vivek Goyal
2013-11-25 16:15 ` Michael Holzheu
2013-11-22 0:55 ` HATAYAMA Daisuke
2013-11-22 2:03 ` Vivek Goyal
2013-12-03 13:23 ` Baoquan He
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