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=-5.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=no 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 E51FDC433F5 for ; Thu, 9 Sep 2021 07:20:03 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8545A60F92 for ; Thu, 9 Sep 2021 07:20:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 8545A60F92 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:57110 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mOELq-000259-KX for qemu-devel@archiver.kernel.org; Thu, 09 Sep 2021 03:20:02 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47688) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mOEKz-0000lo-F5 for qemu-devel@nongnu.org; Thu, 09 Sep 2021 03:19:09 -0400 Received: from mga05.intel.com ([192.55.52.43]:61112) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mOEKs-0008NZ-RA for qemu-devel@nongnu.org; Thu, 09 Sep 2021 03:19:09 -0400 X-IronPort-AV: E=McAfee;i="6200,9189,10101"; a="306272982" X-IronPort-AV: E=Sophos;i="5.85,279,1624345200"; d="scan'208";a="306272982" Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Sep 2021 00:18:59 -0700 X-IronPort-AV: E=Sophos;i="5.85,279,1624345200"; d="scan'208";a="504101419" Received: from yangzhon-virtual.bj.intel.com (HELO yangzhon-Virtual) ([10.238.144.101]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-SHA256; 09 Sep 2021 00:18:57 -0700 Date: Thu, 9 Sep 2021 15:05:03 +0800 From: Yang Zhong To: Paolo Bonzini Subject: Re: [PATCH 3/7] i386: Add sgx_get_info() interface Message-ID: <20210909070503.GF21362@yangzhon-Virtual> References: <20210908081937.77254-1-yang.zhong@intel.com> <20210908081937.77254-4-yang.zhong@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.5.21 (2010-09-15) Received-SPF: pass client-ip=192.55.52.43; envelope-from=yang.zhong@intel.com; helo=mga05.intel.com X-Spam_score_int: -41 X-Spam_score: -4.2 X-Spam_bar: ---- X-Spam_report: (-4.2 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_SPF_HELO_TEMPERROR=0.01 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: yang.zhong@intel.com, pbonzini@redhat.com, eblake@redhat.com, qemu-devel@nongnu.org, seanjc@google.com Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Wed, Sep 08, 2021 at 10:55:13AM +0200, Paolo Bonzini wrote: > On 08/09/21 10:19, Yang Zhong wrote: > >+ if (x86ms->sgx_epc_list) { > >+ PCMachineState *pcms = PC_MACHINE(ms); > >+ SGXEPCState *sgx_epc = &pcms->sgx_epc; > >+ info = g_new0(SGXInfo, 1); > >+ > >+ info->sgx = true; > >+ info->sgx1 = true; > >+ info->sgx2 = true; > >+ info->flc = true; > > Since this is querying the actual machine, it should check the CPUID > bits of the first CPU, instead of just returning true. > Paolo, this interface is only for checking SGX info from VM side by motinor or QMP tools, the SGXInfo *sgx_get_capabilities(Error **errp) in the patch5 check the host cpuid info to get the SGX related CPU bit info, like sgx,flc,sgx1,and sgx2 bit info. so here, if x86ms->sgx_epc_list is setting, those bits info in the VM side are all ture. thanks! Yang > Paolo