From: Andrew Lutomirski <luto@mit.edu>
To: Ingo Molnar <mingo@elte.hu>
Cc: Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org, linux-kernel@vger.kernel.org,
Linus Torvalds <torvalds@linux-foundation.org>,
Andrew Morton <akpm@linux-foundation.org>,
Arjan van de Ven <arjan@infradead.org>,
Jan Beulich <JBeulich@novell.com>
Subject: Re: [PATCH 0/5] x86-64: Remove syscall instructions at fixed addresses
Date: Mon, 30 May 2011 22:33:17 -0400 [thread overview]
Message-ID: <BANLkTin9xfS_X9Bscf1qnNZMK=JBgpzV8Q@mail.gmail.com> (raw)
In-Reply-To: <20110529191924.GD9835@elte.hu>
On Sun, May 29, 2011 at 3:19 PM, Ingo Molnar <mingo@elte.hu> wrote:
> Btw., do you know CONFIG_X86_PTDUMP=y and /debug/kernel_page_tables?
> You could use that to double check that after your patches all
> executable (and fixed address) pages are removed [or are harmless].
Done. Now there's only one user-executable page and it's mostly harmless.
Maybe I'll try to get rid of vread_tsc and vread_hpet later on to make
it even more harmless.
--Andy
next prev parent reply other threads:[~2011-05-31 2:33 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-27 17:38 [PATCH 0/5] x86-64: Remove syscall instructions at fixed addresses Andy Lutomirski
2011-05-27 17:38 ` [PATCH 1/5] x86-64: Fix alignment of jiffies variable Andy Lutomirski
2011-05-27 17:38 ` [PATCH 2/5] x86-64: Give vvars their own page Andy Lutomirski
2011-05-29 20:34 ` Borislav Petkov
2011-05-30 1:37 ` Andrew Lutomirski
2011-05-27 17:38 ` [PATCH 3/5] x86-64: Remove kernel.vsyscall64 sysctl Andy Lutomirski
2011-05-27 17:38 ` [PATCH 4/5] x86-64: Replace vsyscall gettimeofday fallback with int 0xcc Andy Lutomirski
2011-05-29 19:10 ` Ingo Molnar
2011-05-29 19:23 ` Andrew Lutomirski
2011-05-29 19:43 ` Ingo Molnar
2011-05-29 19:49 ` Ingo Molnar
2011-05-29 19:57 ` Andrew Lutomirski
2011-05-29 20:01 ` Ingo Molnar
2011-05-29 20:04 ` Andrew Lutomirski
2011-05-29 20:26 ` Borislav Petkov
2011-05-29 19:49 ` Jesper Juhl
2011-05-29 19:54 ` Jesper Juhl
2011-05-29 20:05 ` Andrew Lutomirski
2011-05-29 20:07 ` Jesper Juhl
2011-05-27 17:38 ` [PATCH 5/5] x86-64: Map the HPET NX Andy Lutomirski
2011-05-29 19:19 ` [PATCH 0/5] x86-64: Remove syscall instructions at fixed addresses Ingo Molnar
2011-05-31 2:33 ` Andrew Lutomirski [this message]
2011-05-31 8:07 ` Ingo Molnar
2011-05-31 12:27 ` Andrew Lutomirski
2011-05-31 12:54 ` Ingo Molnar
2011-05-31 13:06 ` Andrew Lutomirski
2011-05-31 13:11 ` Ingo Molnar
2011-05-31 13:17 ` Andrew Lutomirski
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