From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756510Ab2ANSef (ORCPT ); Sat, 14 Jan 2012 13:34:35 -0500 Received: from mailgw12.technion.ac.il ([132.68.225.12]:48031 "EHLO mailgw12.technion.ac.il" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756444Ab2ANSee (ORCPT ); Sat, 14 Jan 2012 13:34:34 -0500 X-IronPort-Anti-Spam-Filtered: true X-IronPort-Anti-Spam-Result: AvwEAK/JEU+ERM5e/2dsb2JhbABCrTaBBYIgUoECPBO9d4wXBKAMh0g X-IronPort-AV: E=Sophos;i="4.71,510,1320616800"; d="scan'208";a="74537795" From: Nadav Amit To: Avi Kivity Cc: Marcelo Tosatti , Thomas Gleixner , Ingo Molnar , "H. Peter Anvin" , x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Nadav Amit , Nadav Amit Subject: [PATCH] KVM: Fix MOVSX emulation Date: Sat, 14 Jan 2012 20:34:08 +0200 Message-Id: <1326566048-6756-1-git-send-email-namit@cs.technion.ac.il> X-Mailer: git-send-email 1.7.4.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The destination register of MOVSX should be decoded similarily to MOVZX. Signed-off-by: Nadav Amit --- arch/x86/kvm/emulate.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index 05a562b..7644a83 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -3553,7 +3553,8 @@ static int decode_operand(struct x86_emulate_ctxt *ctxt, struct operand *op, case OpReg: decode_register_operand(ctxt, op, op == &ctxt->dst && - ctxt->twobyte && (ctxt->b == 0xb6 || ctxt->b == 0xb7)); + ctxt->twobyte && ((ctxt->b & 0xfe) == 0xb6 || + (ctxt->b & 0xfe) == 0xbe)); break; case OpImmUByte: rc = decode_imm(ctxt, op, 1, false); -- 1.7.4.1