linux-kernel - Re: [PATCH v3 3/7] x86, boot: Don't overlap VO with ZO data

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Message-ID: <CAE9FiQXOdMS1L2XOeq+D2SV8-Ey0CTLEyRO30oxCthFbSSeMDQ@mail.gmail.com>
Date:	Tue, 10 Mar 2015 12:29:50 -0700
From:	Yinghai Lu <yinghai@...nel.org>
To:	Borislav Petkov <bp@...e.de>, "H. Peter Anvin" <hpa@...or.com>,
	Ingo Molnar <mingo@...hat.com>
Cc:	Matt Fleming <matt.fleming@...el.com>,
	Kees Cook <keescook@...omium.org>, Baoquan He <bhe@...hat.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	Jiri Kosina <jkosina@...e.cz>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	"linux-efi@...r.kernel.org" <linux-efi@...r.kernel.org>
Subject: Re: [PATCH v3 3/7] x86, boot: Don't overlap VO with ZO data

On Tue, Mar 10, 2015 at 8:48 AM, Borislav Petkov <bp@...e.de> wrote:
> On Tue, Mar 10, 2015 at 08:42:40AM -0700, Yinghai Lu wrote:
>> In arch/x86/boot/header.S, we already use VO and ZO.
>> So please keep on using them, and don't introduce "kernel proper" etc.
>
> So you're suggesting commit messages should use variable names and
> prefixes from the code instead of being human-readable?

Now we have
vmlinux   ===> VO or kernel,  that is output/init_size in misc.c
arch/x86/boot/compressed/vmlinux.bin.xz  ==> compressed kernel. that
is  input/input_len in misc.c
arch/x86/boot/compressed/vmllinux  ==> ZO,
arch/x86/boot/setup + ZO is bzImage.

I really think we should not use
"compressed kernel" for arch/x86/boot/compressed/vmlinux
that should stand for compressed vmlinux.

VO/ZO should be better thatn "kernel proper"/'compressed kernel"
for vmlinux/"arch/x86/boot/compressed/vmlinux" ?

Peter/Ingo, How to you think about that?

Thanks

Yinghai
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