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=-3.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED 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 9A874C35242 for ; Tue, 11 Feb 2020 20:17:36 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 76CEF20848 for ; Tue, 11 Feb 2020 20:17:36 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="R8dn+eyu" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731791AbgBKURf (ORCPT ); Tue, 11 Feb 2020 15:17:35 -0500 Received: from us-smtp-delivery-1.mimecast.com ([207.211.31.120]:54381 "EHLO us-smtp-1.mimecast.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1728021AbgBKURf (ORCPT ); Tue, 11 Feb 2020 15:17:35 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1581452254; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: in-reply-to:in-reply-to:references:references; bh=2n1XuFh1TfPRhW8BtVWDxws+sMTjPmhnwZU8q2safFI=; b=R8dn+eyu4RFdzpf6ZFXKQTSwzWS2WRRe6hEmsw7prDa7X2pQL7DQnuBe6eFaaeR4i267Qy nRYlsyLetzkKOCJiGdAxgEen1C17fWs63t318KcP0Cp1j64MkuDAk++diOnTyAvgwC1dla h1UbptDIgY7TogBioQEesOAqFw+1NL8= Received: from mail-qk1-f200.google.com (mail-qk1-f200.google.com [209.85.222.200]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-281-yaEaGwPYNXSYWIjykJ7_qw-1; Tue, 11 Feb 2020 15:17:32 -0500 X-MC-Unique: yaEaGwPYNXSYWIjykJ7_qw-1 Received: by mail-qk1-f200.google.com with SMTP id q135so7949449qke.22 for ; Tue, 11 Feb 2020 12:17:32 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to; bh=2n1XuFh1TfPRhW8BtVWDxws+sMTjPmhnwZU8q2safFI=; b=aJKWOTs/EyJmvUFwGfeO7d+sjme2KAqyopWhj88fV1uoaMGeJBUGeBRWbSGVLTFCY9 Nm3fjQFlEq3jGo/ueXrRWAVfxPza4If3PuYWVtY/ckctA+WTX670feiD95b9TxMZ8lxc ctJ8ViT+V1icq9oD2NhKZIkrq6eNUB7gdtrsNPH2j1Arj0utDsuXTnH5w0QEOb4c/NMF 2nKL8PZyE3WLPO6wBQeD/RrgR9XSiIx60GQFJ3x2ZR683fPqes6sv33xjnv2bmCpyMG7 WgyQQh+2bb4rSyjsBL7O6OxXRlk/0ml+Ymt6N4JIi7A2q3ffp8UVcu1ndVtoA6pkbv7e nS+Q== X-Gm-Message-State: APjAAAVzA4NB2DsM4RkswkIYRPmvLdrMP+RMkogwYONurh5H/MqClV7y xCZmeWvO5sB8jG3H8LyAql2IQafnxRDcm+5jKL4tjlHj1sd4Wzuw2ma1aB+nVijr4SED2BpEmBr BnGbLVjj6KDCA X-Received: by 2002:ac8:70d5:: with SMTP id g21mr16029171qtp.46.1581452251962; Tue, 11 Feb 2020 12:17:31 -0800 (PST) X-Google-Smtp-Source: APXvYqzPgOox0hoFSqBwyM/SG+T29FHEd69AnhPYMbf1Hp8+R4QUO+KGBpbRLIGWBg/HA0g58mdBtg== X-Received: by 2002:ac8:70d5:: with SMTP id g21mr16029153qtp.46.1581452251773; Tue, 11 Feb 2020 12:17:31 -0800 (PST) Received: from xz-x1 ([2607:9880:19c8:32::2]) by smtp.gmail.com with ESMTPSA id 8sm2582400qkm.92.2020.02.11.12.17.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 11 Feb 2020 12:17:30 -0800 (PST) Date: Tue, 11 Feb 2020 15:17:28 -0500 From: Peter Xu To: "Liu, Yi L" Cc: qemu-devel@nongnu.org, david@gibson.dropbear.id.au, pbonzini@redhat.com, alex.williamson@redhat.com, mst@redhat.com, eric.auger@redhat.com, kevin.tian@intel.com, jun.j.tian@intel.com, yi.y.sun@intel.com, kvm@vger.kernel.org, hao.wu@intel.com, Jacob Pan , Yi Sun , Richard Henderson , Eduardo Habkost Subject: Re: [RFC v3 15/25] intel_iommu: process pasid cache invalidation Message-ID: <20200211201728.GM984290@xz-x1> References: <1580300216-86172-1-git-send-email-yi.l.liu@intel.com> <1580300216-86172-16-git-send-email-yi.l.liu@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <1580300216-86172-16-git-send-email-yi.l.liu@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Wed, Jan 29, 2020 at 04:16:46AM -0800, Liu, Yi L wrote: > From: Liu Yi L > > This patch adds PASID cache invalidation handling. When guest enabled > PASID usages (e.g. SVA), guest software should issue a proper PASID > cache invalidation when caching-mode is exposed. This patch only adds > the draft handling of pasid cache invalidation. Detailed handling will > be added in subsequent patches. > > Cc: Kevin Tian > Cc: Jacob Pan > Cc: Peter Xu > Cc: Yi Sun > Cc: Paolo Bonzini > Cc: Richard Henderson > Cc: Eduardo Habkost > Signed-off-by: Liu Yi L Reviewed-by: Peter Xu -- Peter Xu