linux-kernel - Re: [PATCH] x86/entry/32: Initialize ss1 (SYSENTER

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Date:	Thu, 23 Jul 2015 15:03:04 -0400
From:	Brian Gerst <brgerst@...il.com>
To:	Andy Lutomirski <luto@...nel.org>
Cc:	X86 ML <x86@...nel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Steven Rostedt <rostedt@...dmis.org>, Willy Tarreau <w@....eu>,
	Borislav Petkov <bp@...en8.de>,
	Thomas Gleixner <tglx@...utronix.de>,
	Peter Zijlstra <peterz@...radead.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [PATCH] x86/entry/32: Initialize ss1 (SYSENTER_CS shadow) even on
 non-SEP CPUs

On Thu, Jul 23, 2015 at 2:56 PM, Andy Lutomirski <luto@...nel.org> wrote:
> native_load_sp0 relies on this.  I'm not sure why we haven't seen
> reports of crashes.  Maybe no one tests new kernels on non-SEP CPUs.

It's already statically initialized in cpu_tss.

--
Brian Gerst
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