From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nadav Amit Subject: Re: [PATCH] KVM: fix mov immediate emulation for 64-bit operands Date: Sun, 8 Jan 2012 02:30:39 +0200 Message-ID: References: <1325967346-12539-1-git-send-email-namit@cs.technion.ac.il> <4F08AA3C.9090306@zytor.com> Mime-Version: 1.0 (Apple Message framework v1251.1) Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Cc: Avi Kivity , Marcelo Tosatti , Thomas Gleixner , Ingo Molnar , x86@kernel.org, kvm@vger.kernel.org, linux-kernel@vger.kernel.org To: "H. Peter Anvin" Return-path: In-Reply-To: <4F08AA3C.9090306@zytor.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On Jan 7, 2012, at 10:25 PM, H. Peter Anvin wrote: > On 01/07/2012 12:21 PM, Nadav Amit wrote: >> MOV immediate instruction (opcodes 0xB8-0xBF) may take 64-bit operand. >> The previous emulation implementation assumes the operand is no longer than 32. >> >> Signed-off-by: Nadav Amit > > There are exactly two such instructions: MOV immediate (B8-BF) and MOV > moff (A0-A3); you may want to check the latter too. > > -hpa > These instructions (A0-A3) seem to be already covered by the decode_abs function. Regards, Nadav