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 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 6B82AC43331 for ; Tue, 24 Mar 2020 18:19:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 430D62076E for ; Tue, 24 Mar 2020 18:19:27 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="UuZao6GN" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727393AbgCXST0 (ORCPT ); Tue, 24 Mar 2020 14:19:26 -0400 Received: from us-smtp-delivery-74.mimecast.com ([216.205.24.74]:53478 "EHLO us-smtp-delivery-74.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727310AbgCXST0 (ORCPT ); Tue, 24 Mar 2020 14:19:26 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1585073964; 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=bfKxrcAYL3qJAjPqhp2KXWsKra1TFVjk/RLo1JNsOVY=; b=UuZao6GNhoO8B0oAUoo93Uq2EYviRSKCB2BXNezcw9ERJsug44tnhIyH4FddyoWm3iJRJv ycb/wIhAyk5hkcqK1TR1tzKrVXUMuxFWv1XSj0WiKluigPF5+Yo7SXL4VyA9mxfJ3IwdCX lEgPFdjCtSKPuO7Mj1YFmOYeUDT0CoY= Received: from mail-wm1-f70.google.com (mail-wm1-f70.google.com [209.85.128.70]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-383-L1yIOjN_NLa_1TFQyD5W6w-1; Tue, 24 Mar 2020 14:19:22 -0400 X-MC-Unique: L1yIOjN_NLa_1TFQyD5W6w-1 Received: by mail-wm1-f70.google.com with SMTP id n25so1552316wmi.5 for ; Tue, 24 Mar 2020 11:19:22 -0700 (PDT) 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=bfKxrcAYL3qJAjPqhp2KXWsKra1TFVjk/RLo1JNsOVY=; b=ZcodD9O0odHV5xLyx74JMXk01PEqNhZeXIx0IKVDilX/ai+mhaLeUmEyntTT0/PLpt GeL5c89yzBoT/EO3+bnakz8+o3FZ53Wmvrr9E/1VJPzVlhSHitjHUoFu6HPcyItaO3mU XUbJ/mnouA/Goie7COI63NRuC4rBZ/m1vxSovRBXGhaLVSmEmH+dVQSVgHLCotXrrRxp mbGn1ELGA1hNY/6PV++wxG73AzACgb87Ye29bxEBBQS+zV8r4rFAaJ2ULnDp1HOMfIXw KhhxCNo8grb5hViFZJsdL147YMi6inPugXyqxCefVMW92GCTDBEa8j/e7GKBRFheNwPL LY5Q== X-Gm-Message-State: ANhLgQ24kdxAbySshgVV/fvpc+KQ2JcEqWfiyj9WnRiVrqqVk2n0PjUy Z8aYQYFiymYHRvyhQwIyxOhtP8S6CBveE3PeuR0lQ+J8I1P2qUfvfuCUjnwzJ7TyZ4nVCH+e3Jp S2xaVUyUsxDs3 X-Received: by 2002:adf:cf09:: with SMTP id o9mr37080579wrj.74.1585073961686; Tue, 24 Mar 2020 11:19:21 -0700 (PDT) X-Google-Smtp-Source: ADFU+vtoyGu2Zn/sHDRK1B/QPFf7ailyYZQZxOfMhhUCMwv+32rQI+zwHFaIHeTUKFtQQbBMp9AAGQ== X-Received: by 2002:adf:cf09:: with SMTP id o9mr37080540wrj.74.1585073961431; Tue, 24 Mar 2020 11:19:21 -0700 (PDT) Received: from xz-x1 ([2607:9880:19c0:32::2]) by smtp.gmail.com with ESMTPSA id u5sm23315254wrp.81.2020.03.24.11.19.17 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 24 Mar 2020 11:19:20 -0700 (PDT) Date: Tue, 24 Mar 2020 14:19:15 -0400 From: Peter Xu To: Liu Yi L Cc: qemu-devel@nongnu.org, alex.williamson@redhat.com, eric.auger@redhat.com, pbonzini@redhat.com, mst@redhat.com, david@gibson.dropbear.id.au, kevin.tian@intel.com, jun.j.tian@intel.com, yi.y.sun@intel.com, kvm@vger.kernel.org, hao.wu@intel.com, jean-philippe@linaro.org, Jacob Pan , Yi Sun Subject: Re: [PATCH v1 18/22] vfio: add support for flush iommu stage-1 cache Message-ID: <20200324181915.GC127076@xz-x1> References: <1584880579-12178-1-git-send-email-yi.l.liu@intel.com> <1584880579-12178-19-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: <1584880579-12178-19-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 Sun, Mar 22, 2020 at 05:36:15AM -0700, Liu Yi L wrote: > This patch adds flush_stage1_cache() definition in HostIOMUContextClass. > And adds corresponding implementation in VFIO. This is to expose a way > for vIOMMU to flush stage-1 cache in host side since guest owns stage-1 > translation structures in dual stage DMA translation configuration. > > Cc: Kevin Tian > Cc: Jacob Pan > Cc: Peter Xu > Cc: Eric Auger > Cc: Yi Sun > Cc: David Gibson > Cc: Alex Williamson > Signed-off-by: Liu Yi L Acked-by: Peter Xu -- Peter Xu