From nobody Mon Feb 9 02:12:16 2026 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC7D1C76196 for ; Wed, 29 Mar 2023 03:00:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229968AbjC2DAA (ORCPT ); Tue, 28 Mar 2023 23:00:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44558 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229984AbjC2C76 (ORCPT ); Tue, 28 Mar 2023 22:59:58 -0400 Received: from out30-111.freemail.mail.aliyun.com (out30-111.freemail.mail.aliyun.com [115.124.30.111]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6BD201BC1 for ; Tue, 28 Mar 2023 19:59:55 -0700 (PDT) X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R191e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=ay29a033018046056;MF=wuzongyong@linux.alibaba.com;NM=1;PH=DS;RN=10;SR=0;TI=SMTPD_---0VeuzKk5_1680058783; Received: from L-PF27918B-1352.localdomain(mailfrom:wuzongyong@linux.alibaba.com fp:SMTPD_---0VeuzKk5_1680058783) by smtp.aliyun-inc.com; Wed, 29 Mar 2023 10:59:52 +0800 From: Wu Zongyong To: tglx@linutronix.de, mingo@redhat.com, dave.hansen@linux.intel.com, x86@kernel.org, linux-kernel@vger.kernel.org Cc: Wu Zongyong , thomas.lendacky@amd.com, tony.luck@intel.com, kirill.shutemov@linux.intel.com, wutu.xq2@linux.alibaba.com Subject: [RFC PATCH] x86/insn: support decode MOVSXD instruction for MMIO Date: Wed, 29 Mar 2023 10:59:37 +0800 Message-Id: <1655f5dc49ab77f94e350ecbdc93e8d9b31acf61.1680058548.git.wuzongyong@linux.alibaba.com> X-Mailer: git-send-email 2.34.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" It seems MOVSXD which opcode is 0x63 is not handled, support to decode it in insn_decode_mmio(). Signed-off-by: Wu Zongyong --- arch/x86/lib/insn-eval.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/x86/lib/insn-eval.c b/arch/x86/lib/insn-eval.c index 558a605929db..db6f93bad219 100644 --- a/arch/x86/lib/insn-eval.c +++ b/arch/x86/lib/insn-eval.c @@ -1607,6 +1607,10 @@ enum insn_mmio_type insn_decode_mmio(struct insn *in= sn, int *bytes) return INSN_MMIO_DECODE_FAILED; =20 switch (insn->opcode.bytes[0]) { + case 0x63: /* MOVSXD r64, m32 */ + *bytes =3D 4; + type =3D INSN_MMIO_READ_SIGN_EXTEND; + break; case 0x88: /* MOV m8,r8 */ *bytes =3D 1; fallthrough; --=20 2.34.3