From: Siarhei Liakh <sliakh.lkml@gmail.com>
To: Ingo Molnar <mingo@elte.hu>
Cc: Arjan van de Ven <arjan@infradead.org>,
linux-kernel@vger.kernel.org,
linux-security-module@vger.kernel.org,
James Morris <jmorris@namei.org>,
Andrew Morton <akpm@linux-foundation.org>, Andi Kleen <ak@muc.de>,
Rusty Russell <rusty@rustcorp.com.au>,
Thomas Gleixner <tglx@linutronix.de>,
"H. Peter Anvin" <hpa@zytor.com>,
David Howells <dhowells@redhat.com>,
Aristeu Rozanski <aris@redhat.com>
Subject: Re: [PATCH V5] x86: NX protection for kernel data
Date: Tue, 13 Oct 2009 07:35:28 -0400 [thread overview]
Message-ID: <817ecb6f0910130435q56fcbf63r82fae9b94f3eb199@mail.gmail.com> (raw)
In-Reply-To: <20091013060312.GA3215@elte.hu>
>> I like doing this, but... maybe it is useful to have a diff of the
>> pagetable dump (PT_DUMP config option) to show the effect, in the
>> changelog. That'd be like the proof on the pudding...
>
> That's a good suggestion. Siarhei Liakh, mind doing that?
Here you go:
===============================================
--- data_nx_pt_before.txt 2009-10-13 07:26:17.000000000 -0400
+++ data_nx_pt_after.txt 2009-10-13 07:26:46.000000000 -0400
@@ -2,12 +2,9 @@
0x00000000-0xc0000000 3G pmd
---[ Kernel Mapping ]---
0xc0000000-0xc0100000 1M RW GLB x pte
-0xc0100000-0xc048d000 3636K ro GLB x pte
-0xc048d000-0xc04d0000 268K RW GLB x pte
-0xc04d0000-0xc04d2000 8K RW GLB NX pte
-0xc04d2000-0xc04d3000 4K RW GLB x pte
-0xc04d3000-0xc0531000 376K RW GLB NX pte
-0xc0531000-0xc0600000 828K RW GLB x pte
+0xc0100000-0xc0381000 2564K ro GLB x pte
+0xc0381000-0xc048d000 1072K ro GLB NX pte
+0xc048d000-0xc0600000 1484K RW GLB NX pte
0xc0600000-0xf7800000 882M RW PSE GLB NX pmd
0xf7800000-0xf79fe000 2040K RW GLB NX pte
0xf79fe000-0xf7a00000 8K pte
===============================================
Would you like me to re-post whole patch with this addition?
Thanks.
next prev parent reply other threads:[~2009-10-13 11:36 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-13 1:03 Siarhei Liakh
2009-10-13 4:32 ` Arjan van de Ven
2009-10-13 6:03 ` Ingo Molnar
2009-10-13 11:35 ` Siarhei Liakh [this message]
2009-10-13 12:28 ` Ingo Molnar
2009-10-13 14:07 ` Arjan van de Ven
2009-10-13 14:15 ` Ingo Molnar
2009-10-13 14:29 ` Arjan van de Ven
2009-10-13 14:49 ` Alan Cox
2009-10-13 15:34 ` Siarhei Liakh
2009-10-13 14:35 ` Arjan van de Ven
2009-10-13 7:14 ` David Howells
2009-10-13 7:48 ` David Howells
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