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=-8.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 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 79AE5C43603 for ; Thu, 19 Dec 2019 02:47:52 +0000 (UTC) Received: from silver.osuosl.org (smtp3.osuosl.org [140.211.166.136]) (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 49635227BF for ; Thu, 19 Dec 2019 02:47:52 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 49635227BF 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 silver.osuosl.org (Postfix) with ESMTP id 07D0E2045C; Thu, 19 Dec 2019 02:47:52 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from silver.osuosl.org ([127.0.0.1]) by localhost (.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id bSNgMyxfcNOv; Thu, 19 Dec 2019 02:47:51 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by silver.osuosl.org (Postfix) with ESMTP id 0DCBB2041F; Thu, 19 Dec 2019 02:47:51 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id E69C2C1797; Thu, 19 Dec 2019 02:47:50 +0000 (UTC) Received: from hemlock.osuosl.org (smtp2.osuosl.org [140.211.166.133]) by lists.linuxfoundation.org (Postfix) with ESMTP id 50211C077D for ; Thu, 19 Dec 2019 02:47:49 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by hemlock.osuosl.org (Postfix) with ESMTP id 38DE486E6E for ; Thu, 19 Dec 2019 02:47:49 +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 vnh5drLbv4py for ; Thu, 19 Dec 2019 02:47:48 +0000 (UTC) X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6 Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by hemlock.osuosl.org (Postfix) with ESMTPS id 5FA3586E5C for ; Thu, 19 Dec 2019 02:47:48 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 18 Dec 2019 18:47:47 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,330,1571727600"; d="scan'208";a="228099504" Received: from allen-box.sh.intel.com (HELO [10.239.159.136]) ([10.239.159.136]) by orsmga002.jf.intel.com with ESMTP; 18 Dec 2019 18:47:45 -0800 Subject: Re: [PATCH v8 04/10] iommu/vt-d: Support flushing more translation cache types To: Jacob Pan , iommu@lists.linux-foundation.org, LKML , Joerg Roedel , David Woodhouse References: <1576524252-79116-1-git-send-email-jacob.jun.pan@linux.intel.com> <1576524252-79116-5-git-send-email-jacob.jun.pan@linux.intel.com> From: Lu Baolu Message-ID: <24cc06da-14ec-908d-361d-a8b321b10852@linux.intel.com> Date: Thu, 19 Dec 2019 10:46:51 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.2.1 MIME-Version: 1.0 In-Reply-To: <1576524252-79116-5-git-send-email-jacob.jun.pan@linux.intel.com> Content-Language: en-US Cc: "Tian, Kevin" , Raj Ashok 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-Transfer-Encoding: 7bit Content-Type: text/plain; charset="us-ascii"; Format="flowed" Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Hi, On 12/17/19 3:24 AM, Jacob Pan wrote: > When Shared Virtual Memory is exposed to a guest via vIOMMU, scalable > IOTLB invalidation may be passed down from outside IOMMU subsystems. > This patch adds invalidation functions that can be used for additional > translation cache types. > > Signed-off-by: Jacob Pan > --- > drivers/iommu/dmar.c | 46 +++++++++++++++++++++++++++++++++++++++++++++ > drivers/iommu/intel-pasid.c | 3 ++- > include/linux/intel-iommu.h | 21 +++++++++++++++++---- > 3 files changed, 65 insertions(+), 5 deletions(-) > > diff --git a/drivers/iommu/dmar.c b/drivers/iommu/dmar.c > index 3acfa6a25fa2..f2f5d75da94a 100644 > --- a/drivers/iommu/dmar.c > +++ b/drivers/iommu/dmar.c > @@ -1348,6 +1348,20 @@ void qi_flush_iotlb(struct intel_iommu *iommu, u16 did, u64 addr, > qi_submit_sync(&desc, iommu); > } > > +/* PASID-based IOTLB Invalidate */ > +void qi_flush_iotlb_pasid(struct intel_iommu *iommu, u16 did, u64 addr, u32 pasid, > + unsigned int size_order, u64 granu, int ih) > +{ > + struct qi_desc desc = {.qw2 = 0, .qw3 = 0}; > + > + desc.qw0 = QI_EIOTLB_PASID(pasid) | QI_EIOTLB_DID(did) | > + QI_EIOTLB_GRAN(granu) | QI_EIOTLB_TYPE; > + desc.qw1 = QI_EIOTLB_ADDR(addr) | QI_EIOTLB_IH(ih) | > + QI_EIOTLB_AM(size_order); > + > + qi_submit_sync(&desc, iommu); > +} There's another version of pasid-based iotlb invalidation. https://lkml.org/lkml/2019/12/10/2128 Let's consider merging them. Best regards, baolu _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu