From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935084AbcATEEU (ORCPT ); Tue, 19 Jan 2016 23:04:20 -0500 Received: from terminus.zytor.com ([198.137.202.10]:55797 "EHLO mail.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933509AbcATEEM (ORCPT ); Tue, 19 Jan 2016 23:04:12 -0500 Subject: Re: [PATCH] x86: static_cpu_has_safe: discard dynamic check after init To: Borislav Petkov , Andy Lutomirski , Brian Gerst References: <20160117103337.GC8549@pd.tnic> <20160118181457.GG12651@pd.tnic> <20160118183921.GH12651@pd.tnic> <569D40CE.5090506@zytor.com> <20160118230554.GJ12651@pd.tnic> <3D4E057B-AB03-4C12-B59D-774E8954C742@zytor.com> <20160118232547.GK12651@pd.tnic> <20160119135714.GD15071@pd.tnic> Cc: the arch/x86 maintainers , Linux Kernel Mailing List , Ingo Molnar , Denys Vlasenko , Linus Torvalds From: "H. Peter Anvin" Message-ID: <569F072B.1020504@zytor.com> Date: Tue, 19 Jan 2016 20:03:55 -0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.4.0 MIME-Version: 1.0 In-Reply-To: <20160119135714.GD15071@pd.tnic> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 01/19/16 05:57, Borislav Petkov wrote: > > old insn VA: 0xffffffff8108c0d0, CPU feat: X86_BUG_SYSRET_SS_ATTRS, size: 2, padlen: 0 > __switch_to: > ffffffff8108c0d0: eb 70 jmp ffffffff8108c142 > repl insn: 0xffffffff8ca7a1a7, size: 0 > This is the only one I could possibly imagine mattering. Would it be possible to get the disassembly here? -hpa