From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-1.7 required=3.0 tests=DATE_IN_PAST_12_24, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 785B8C43381 for ; Mon, 11 Mar 2019 05:24:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 465F5206DF for ; Mon, 11 Mar 2019 05:24:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726263AbfCKFX6 (ORCPT ); Mon, 11 Mar 2019 01:23:58 -0400 Received: from mga17.intel.com ([192.55.52.151]:42117 "EHLO mga17.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725770AbfCKFX6 (ORCPT ); Mon, 11 Mar 2019 01:23:58 -0400 X-Amp-Result: UNKNOWN X-Amp-Original-Verdict: FILE UNKNOWN X-Amp-File-Uploaded: False Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga107.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 10 Mar 2019 22:23:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,467,1544515200"; d="scan'208";a="139682422" Received: from local-michael-cet-test.sh.intel.com (HELO localhost) ([10.239.159.128]) by FMSMGA003.fm.intel.com with ESMTP; 10 Mar 2019 22:23:55 -0700 Date: Sun, 10 Mar 2019 20:18:16 +0800 From: Yang Weijiang To: Paolo Bonzini Cc: rkrcmar@redhat.com, sean.j.christopherson@intel.com, jmattson@google.com, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, mst@redhat.com, yu-cheng.yu@intel.com, Zhang Yi Z , weijiang.yang@intel.com Subject: Re: [PATCH v3 3/8] KVM:CPUID: Add CPUID support for Guest CET Message-ID: <20190310121816.GA24065@local-michael-cet-test.sh.intel.com> References: <20190225132716.6982-1-weijiang.yang@intel.com> <20190225132716.6982-4-weijiang.yang@intel.com> <7b6f1186-71a1-4246-3884-92cc52853fea@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <7b6f1186-71a1-4246-3884-92cc52853fea@redhat.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Mar 08, 2019 at 12:32:12PM +0100, Paolo Bonzini wrote: > On 25/02/19 14:27, Yang Weijiang wrote: > > + compacted = entry[i].eax & > > + (F(XSAVES) | F(XSAVEC)); > > + entry[i].ebx = xstate_required_size(supported, > > + compacted); > > If XSAVES and XSAVEC are both false, just set ebx to 0 as it was before > this patch. > > Paolo Thanks Paulo, it makes sense to do so, will change it in next version.