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Re: [Xen-devel] [kernel-hardening] Re: [PATCH] x86: make IDT read-only
- To: Kees Cook <keescook@xxxxxxxxxxxx>
- From: "H. Peter Anvin" <hpa@xxxxxxxxx>
- Date: Tue, 09 Apr 2013 17:03:16 -0700
- Cc: Alexander Duyck <alexander.h.duyck@xxxxxxxxx>, Alex Shi <alex.shi@xxxxxxxxx>, Jeremy Fitzhardinge <jeremy@xxxxxxxx>, Marcelo Tosatti <mtosatti@xxxxxxxxxx>, Will Drewry <wad@xxxxxxxxxxxx>, Julien Tinnes <jln@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx>, Frederic Weisbecker <fweisbec@xxxxxxxxx>, Dan Rosenberg <drosenberg@xxxxxxxxxxxxx>, "x86@xxxxxxxxxx" <x86@xxxxxxxxxx>, LKML <linux-kernel@xxxxxxxxxxxxxxx>, Steven Rostedt <rostedt@xxxxxxxxxxx>, Borislav Petkov <borislav.petkov@xxxxxxx>, Ingo Molnar <mingo@xxxxxxxxxx>, Eric Northup <digitaleric@xxxxxxxxxx>, "kernel-hardening@xxxxxxxxxxxxxxxxxx" <kernel-hardening@xxxxxxxxxxxxxxxxxx>, "Paul E. McKenney" <paulmck@xxxxxxxxxxxxxxxxxx>, "virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx" <virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>
- Delivery-date: Wed, 10 Apr 2013 00:20:19 +0000
- List-id: Xen developer discussion <xen-devel.lists.xen.org>
On 04/09/2013 11:22 AM, Kees Cook wrote:
>
> Can we create a RO fixed per-cpu area?
>
"Fixed" and "percpu" are mutually exclusive...
-hpa
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