Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752979AbaKWIQT (ORCPT ); Sun, 23 Nov 2014 03:16:19 -0500 Received: from mail-wg0-f43.google.com ([74.125.82.43]:62918 "EHLO mail-wg0-f43.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751126AbaKWIQS convert rfc822-to-8bit (ORCPT ); Sun, 23 Nov 2014 03:16:18 -0500 Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 8.1 \(1993\)) Subject: Re: [CFT PATCH 0/2] KVM: support XSAVES usage in the host From: Nadav Amit In-Reply-To: <1416594678-13011-1-git-send-email-pbonzini@redhat.com> Date: Sun, 23 Nov 2014 10:16:20 +0200 Cc: Linux Kernel Mailing List , kvm@vger.kernel.org, Nadav Amit , Wanpeng Li Content-Transfer-Encoding: 8BIT Message-Id: References: <1416594678-13011-1-git-send-email-pbonzini@redhat.com> To: Paolo Bonzini X-Mailer: Apple Mail (2.1993) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org I’ll try to check it tomorrow (I don’t have access to the failing machine at the moment). Thanks for the quick response. Nadav > On Nov 21, 2014, at 20:31, Paolo Bonzini wrote: > > The first patch ensures that XSAVES is not exposed in the guest until > we emulate MSR_IA32_XSS. The second exports XSAVE data in the correct > format. > > I tested these on a non-XSAVES system so they should not be completely > broken, but I need some help. I am not even sure which XSAVE states > are _not_ enabled, and thus compacted, in Linux. > > Note that these patches do not add support for XSAVES in the guest yet, > since MSR_IA32_XSS is not emulated. > > If they fix the bug Nadav reported, I'll add Reported-by and commit. > > Thanks, > > Paolo > > Paolo Bonzini (2): > kvm: x86: mask out XSAVES > KVM: x86: support XSAVES usage in the host > > arch/x86/kvm/cpuid.c | 11 ++++++++++- > arch/x86/kvm/x86.c | 48 +++++++++++++++++++++++++++++++++++++++++++----- > 2 files changed, 53 insertions(+), 6 deletions(-) > > -- > 1.8.3.1 > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/