Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754164AbaKXQnw (ORCPT ); Mon, 24 Nov 2014 11:43:52 -0500 Received: from mail-wg0-f46.google.com ([74.125.82.46]:51927 "EHLO mail-wg0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751055AbaKXQnu (ORCPT ); Mon, 24 Nov 2014 11:43:50 -0500 From: Paolo Bonzini To: linux-kernel@vger.kernel.org, kvm@vger.kernel.org Cc: wanpeng.li@linux.intel.com, namit@cs.technion.ac.il, hpa@linux.intel.com Subject: [CFT PATCH v2 0/2] KVM: support XSAVES usage in the host Date: Mon, 24 Nov 2014 17:43:32 +0100 Message-Id: <1416847414-22253-1-git-send-email-pbonzini@redhat.com> X-Mailer: git-send-email 1.8.3.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 v1->v2: also adjust KVM_SET_XSAVE 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 | 87 +++++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 90 insertions(+), 8 deletions(-) -- 1.8.3.1 -- 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/