From patchwork Thu May 18 12:35:14 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jan Beulich X-Patchwork-Id: 9734151 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id EED5C600CC for ; Thu, 18 May 2017 12:37:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CFDB02872D for ; Thu, 18 May 2017 12:37:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id C220828750; Thu, 18 May 2017 12:37:50 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from lists.xenproject.org (lists.xenproject.org [192.237.175.120]) (using TLSv1.2 with cipher AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id DA7DF2872D for ; Thu, 18 May 2017 12:37:49 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=lists.xenproject.org) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dBKeF-0003I8-Um; Thu, 18 May 2017 12:35:19 +0000 Received: from mail6.bemta6.messagelabs.com ([193.109.254.103]) by lists.xenproject.org with esmtp (Exim 4.84_2) (envelope-from ) id 1dBKeE-0003I2-TB for xen-devel@lists.xenproject.org; Thu, 18 May 2017 12:35:18 +0000 Received: from [193.109.254.147] by server-9.bemta-6.messagelabs.com id 77/82-03557-6059D195; Thu, 18 May 2017 12:35:18 +0000 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrDIsWRWlGSWpSXmKPExsXS6fjDS5d1qmy kwcPlShbft0xmcmD0OPzhCksAYxRrZl5SfkUCa8bnnjbWggM8FT3/3zI3MB7j6mLk5BASyJNo WneDGcTmFbCT2Lv7JSuILSFgKHF64U0WEJtFQFXi8/dfYDabgLpE27PtQDUcHCICBhLnjiaBh JkFwiW+P+plA7GFBRwlNkx7zgYx3k7i6fcnYOW8AoISf3cIQ5TbScy6OIltAiP3LITMLCQZCF tL4uGvWywQtrbEsoWvmUHKmQWkJZb/44AI20v8/vWCCVUJiO0lMfPVNKYFjByrGNWLU4vKUot 0jfSSijLTM0pyEzNzdA0NzPRyU4uLE9NTcxKTivWS83M3MQJDkgEIdjAu++t0iFGSg0lJlPdw gWykEF9SfkplRmJxRnxRaU5q8SFGDQ4OgW27Vl9glGLJy89LVZLgvToZqE6wKDU9tSItMwcYN TClEhw8SiIQad7igsTc4sx0iNQpRkUpcd6zIAkBkERGaR5cGyxSLzHKSgnzMgIdJcRTkFqUm1 mCKv+KUZyDUUmYdyPIFJ7MvBK46a+AFjMBLW5+IA2yuCQRISXVwNiVGjVRplHWd5LrmjMuKov Mtl9o/1TmW8DzPcBte/mkvbVzsn8ef2YyJaRevr93/uSbDVlhG62q3+df5F+QZeJxsnvTk/Dm fbF1UZtYyiLC9Izyvmw+GbIznOmr4tN9sk4Wl2R/v1h2bM8ENqFDvw0/dl3hMHoie316a0cQZ 4CJt6SXw4+p/5RYijMSDbWYi4oTAb7YzSPPAgAA X-Env-Sender: JBeulich@suse.com X-Msg-Ref: server-3.tower-27.messagelabs.com!1495110915!102759559!1 X-Originating-IP: [137.65.248.74] X-SpamReason: No, hits=0.0 required=7.0 tests= X-StarScan-Received: X-StarScan-Version: 9.4.12; banners=-,-,- X-VirusChecked: Checked Received: (qmail 57365 invoked from network); 18 May 2017 12:35:17 -0000 Received: from prv-mh.provo.novell.com (HELO prv-mh.provo.novell.com) (137.65.248.74) by server-3.tower-27.messagelabs.com with DHE-RSA-AES256-GCM-SHA384 encrypted SMTP; 18 May 2017 12:35:17 -0000 Received: from INET-PRV-MTA by prv-mh.provo.novell.com with Novell_GroupWise; Thu, 18 May 2017 06:35:15 -0600 Message-Id: <591DB122020000780015AED7@prv-mh.provo.novell.com> X-Mailer: Novell GroupWise Internet Agent 14.2.2 Date: Thu, 18 May 2017 06:35:14 -0600 From: "Jan Beulich" To: "xen-devel" References: <591DB122020000780015AED7@prv-mh.provo.novell.com> Mime-Version: 1.0 Cc: Andrew Cooper , Julien Grall Subject: [Xen-devel] [PATCH] x86emul: MOVNTI does not allow 66/F3/F2 prefixes X-BeenThere: xen-devel@lists.xen.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Xen developer discussion List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Errors-To: xen-devel-bounces@lists.xen.org Sender: "Xen-devel" X-Virus-Scanned: ClamAV using ClamSMTP Intel SDM revision 062 finally makes this explicit. Signed-off-by: Jan Beulich x86emul: MOVNTI does not allow 66/F3/F2 prefixes Intel SDM revision 062 finally makes this explicit. Signed-off-by: Jan Beulich --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -6719,6 +6719,7 @@ x86_emulate( goto simd_0f_imm8_avx; case X86EMUL_OPC(0x0f, 0xc3): /* movnti */ + generate_exception_if(vex.pfx, EXC_UD); /* Ignore the non-temporal hint for now. */ vcpu_must_have(sse2); dst.val = src.val; --- a/xen/arch/x86/x86_emulate/x86_emulate.c +++ b/xen/arch/x86/x86_emulate/x86_emulate.c @@ -6719,6 +6719,7 @@ x86_emulate( goto simd_0f_imm8_avx; case X86EMUL_OPC(0x0f, 0xc3): /* movnti */ + generate_exception_if(vex.pfx, EXC_UD); /* Ignore the non-temporal hint for now. */ vcpu_must_have(sse2); dst.val = src.val;