linux-kernel - Re: [PATCH v3 1/7] x86, kaslr: Use init_size instead of run

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Message-ID: <20150309200035.GK12732@pd.tnic>
Date:	Mon, 9 Mar 2015 21:00:35 +0100
From:	Borislav Petkov <bp@...e.de>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Matt Fleming <matt.fleming@...el.com>,
	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...hat.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>,
	Josh Triplett <josh@...htriplett.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Ard Biesheuvel <ard.biesheuvel@...aro.org>,
	Junjie Mao <eternal.n08@...il.com>
Subject: Re: [PATCH v3 1/7] x86, kaslr: Use init_size instead of run_size

On Mon, Mar 09, 2015 at 12:35:25PM -0700, Yinghai Lu wrote:
> Can you put back:
> "
> So need to make sure [z_extra_offset, init_size) will fit ZO, that means
> init_size need to be adjusted according to ZO size.
> That make init_size is always >= run_size.

Why?

We don't adjust init_size. We assign INIT_SIZE to it. Or do you want to
say that we indirectly adjust init_size through INIT_SIZE?

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
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