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=-5.3 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_2 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 177A8C35666 for ; Fri, 21 Feb 2020 20:20:04 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (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 D945B2064C for ; Fri, 21 Feb 2020 20:20:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org D945B2064C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id AEAAD880F4; Fri, 21 Feb 2020 20:20:03 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from hemlock.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id ANNuUBqBba7J; Fri, 21 Feb 2020 20:20:03 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by hemlock.osuosl.org (Postfix) with ESMTP id 473AD88084; Fri, 21 Feb 2020 20:20:03 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 324D6C07FE; Fri, 21 Feb 2020 20:20:03 +0000 (UTC) Received: from fraxinus.osuosl.org (smtp4.osuosl.org [140.211.166.137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 5700EC013E for ; Fri, 21 Feb 2020 20:20:02 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by fraxinus.osuosl.org (Postfix) with ESMTP id 5077D86168 for ; Fri, 21 Feb 2020 20:20:02 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from fraxinus.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id wiCHTYsNFh9L for ; Fri, 21 Feb 2020 20:20:01 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by fraxinus.osuosl.org (Postfix) with ESMTPS id C2800860FD for ; Fri, 21 Feb 2020 20:20:01 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga101.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 21 Feb 2020 12:20:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,469,1574150400"; d="scan'208";a="316156726" Received: from jacob-xps-13-9365.jf.intel.com (HELO jacob-XPS-13-9365) ([10.54.75.153]) by orsmga001.jf.intel.com with ESMTP; 21 Feb 2020 12:19:55 -0800 Date: Fri, 21 Feb 2020 12:20:04 -0800 From: Jacob Pan To: Auger Eric Subject: Re: [PATCH V9 07/10] iommu/vt-d: Cache virtual command capability register Message-ID: <20200221122004.0307c789@jacob-XPS-13-9365> In-Reply-To: <5776bf45-7541-1576-9ced-38883447bf29@redhat.com> References: <1580277713-66934-1-git-send-email-jacob.jun.pan@linux.intel.com> <1580277713-66934-8-git-send-email-jacob.jun.pan@linux.intel.com> <5776bf45-7541-1576-9ced-38883447bf29@redhat.com> Organization: OTC X-Mailer: Claws Mail 3.17.4 (GTK+ 2.24.32; x86_64-pc-linux-gnu) MIME-Version: 1.0 Cc: "Tian, Kevin" , Alex Williamson , Raj Ashok , Jean-Philippe Brucker , LKML , iommu@lists.linux-foundation.org, David Woodhouse , Jonathan Cameron X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Wed, 12 Feb 2020 14:00:22 +0100 Auger Eric wrote: > Hi Jacob, > > On 1/29/20 7:01 AM, Jacob Pan wrote: > > Virtual command registers are used in the guest only, to prevent > > vmexit cost, we cache the capability and store it during > > initialization. > > > > Signed-off-by: Jacob Pan > I sent my R-b in https://lkml.org/lkml/2019/11/8/228 > Also Baolo did. Do I miss any change? > > Again history log would help. > You didn't miss any change. I forgot to add R-bs. Thanks! Jacob > Thanks > > Eric > [...] > [Jacob Pan] _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu