From mboxrd@z Thu Jan 1 00:00:00 1970 From: Radim =?utf-8?B?S3LEjW3DocWZ?= Subject: Re: [PATCH 2/3 v3] kvm: x86: Guest BNDCFGS requires guest MPX support Date: Wed, 24 May 2017 20:22:45 +0200 Message-ID: <20170524182244.GB7723@potion> References: <20170524174925.189832-1-jmattson@google.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit Cc: kvm@vger.kernel.org To: Jim Mattson Return-path: Received: from mx1.redhat.com ([209.132.183.28]:51450 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753551AbdEXSWs (ORCPT ); Wed, 24 May 2017 14:22:48 -0400 Content-Disposition: inline In-Reply-To: <20170524174925.189832-1-jmattson@google.com> Sender: kvm-owner@vger.kernel.org List-ID: 2017-05-24 10:49-0700, Jim Mattson: > The BNDCFGS MSR should only be exposed to the guest if the guest > supports MPX. (cf. the TSC_AUX MSR and RDTSCP.) > > Fixes: 0dd376e709975779 ("KVM: x86: add MSR_IA32_BNDCFGS to msrs_to_save") > Change-Id: I3ad7c01bda616715137ceac878f3fa7e66b6b387 > Signed-off-by: Jim Mattson > --- Reviewed-by: Radim Krčmář