linux-kernel - Re: [PATCH v6 05/27] x86, 64bit: clear ident mapping when kernel is above 512G

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20121216174943.GB20393@liondog.tnic>
Date:	Sun, 16 Dec 2012 18:49:43 +0100
From:	Borislav Petkov <bp@...en8.de>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	Thomas Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...e.hu>,
	"H. Peter Anvin" <hpa@...or.com>,
	"Eric W. Biederman" <ebiederm@...ssion.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v6 05/27] x86, 64bit: clear ident mapping when kernel is
 above 512G

On Thu, Dec 13, 2012 at 02:01:59PM -0800, Yinghai Lu wrote:
> After following patch:
> 	x86, 64bit: Set extra ident mapping for whole kernel range
> 
> We have extra ident mapping for kernel that is loaded above 1G.

What?

/me looks at next patch

Aaah, the *next* patch adds an extra ident mapping. Why don't you say
so?

> So need to clear extra pgd entry when kernel is loaded above 512g.

Why then isn't that patch following the next patch instead of coming
before it?

-- 
Regards/Gruss,
    Boris.

Sent from a fat crate under my desk. Formatting is fine.
--
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/