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 Received: from smtp3.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 smtp.lore.kernel.org (Postfix) with ESMTPS id BB92FC4332F for ; Wed, 1 Nov 2023 13:01:47 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp3.osuosl.org (Postfix) with ESMTP id 4830D6FC9F; Wed, 1 Nov 2023 13:01:47 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp3.osuosl.org 4830D6FC9F Authentication-Results: smtp3.osuosl.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=dBkgnjaO X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp3.osuosl.org ([127.0.0.1]) by localhost (smtp3.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id EtXAV4_PJnX7; Wed, 1 Nov 2023 13:01:43 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp3.osuosl.org (Postfix) with ESMTPS id CAE8261381; Wed, 1 Nov 2023 13:01:42 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp3.osuosl.org CAE8261381 Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id A2C0AC0039; Wed, 1 Nov 2023 13:01:42 +0000 (UTC) Received: from smtp4.osuosl.org (smtp4.osuosl.org [IPv6:2605:bc80:3010::137]) by lists.linuxfoundation.org (Postfix) with ESMTP id 66016C0032 for ; Wed, 1 Nov 2023 13:01:41 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp4.osuosl.org (Postfix) with ESMTP id 2D25E4EC99 for ; Wed, 1 Nov 2023 13:01:41 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org 2D25E4EC99 Authentication-Results: smtp4.osuosl.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=dBkgnjaO X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp4.osuosl.org ([127.0.0.1]) by localhost (smtp4.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id SYBwddgDfNzI for ; Wed, 1 Nov 2023 13:01:40 +0000 (UTC) Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by smtp4.osuosl.org (Postfix) with ESMTPS id E4DBA4EC92 for ; Wed, 1 Nov 2023 13:01:39 +0000 (UTC) DKIM-Filter: OpenDKIM Filter v2.11.0 smtp4.osuosl.org E4DBA4EC92 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1698843698; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U25hlv0d5a4u4nzaxOvc1rnVpT1wnO8Tahwawd9Dugw=; b=dBkgnjaO/VhapUctkA0GdboQn0TY7ePbVPGb8UlGGa3QWgjwx8ggRuheXjUFwoCTPdnprj mkGAKo5IIMkoLQxMLKh0nuia1V3waK1Vdz/4NxnGUF0FYo8xvE9WBXanPJPgBS0DUNrpmM Jh5+K6wkNIBzNi1Hai24zmQN2/qAkcw= Received: from mail-ej1-f71.google.com (mail-ej1-f71.google.com [209.85.218.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-56-QqhXGeHIOEOF1NmvFD1XVQ-1; Wed, 01 Nov 2023 09:01:37 -0400 X-MC-Unique: QqhXGeHIOEOF1NmvFD1XVQ-1 Received: by mail-ej1-f71.google.com with SMTP id a640c23a62f3a-9ae0bf9c0a9so451662666b.3 for ; Wed, 01 Nov 2023 06:01:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698843696; x=1699448496; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=U25hlv0d5a4u4nzaxOvc1rnVpT1wnO8Tahwawd9Dugw=; b=cmrTG9H51J9liHReu7QTodmvmNj71LCFCrDPNPImL8Exm45TRzej3sCUCgrac3dm2R CGbJj9sDgzJ88SozTjPu8J9TL2UP3YpzoYUZyz1icNoXWynunYLGNBKBpxMGSeNhsXN2 7sGdJTlWRxs+GVXaAA2Hb6f4rQsxSgv3pbqupN61dYGlLKw/pQsT/dn+rP5XVqcKf/nG Y5KxCfm+37GhKEbjjDLn4WutqzYGw4SvQisP/34XzbYpRD1cG7mD6040Q4Ot7Ao5NEGn ZWoNR/6cJU0jJMLb0jVuzAlHI+/m4OvUIbqnC4vLA/xAoV7pRGo3OabGFyPGp1No3gOM +cVw== X-Gm-Message-State: AOJu0YzoAoT8eziIJQo6weZ1CavwBKtOKayfK0reJTnRdARgm8dUdkEu qiAtqGoAKeedg/pafvpAE5TDjE4h/vGOP2fWTsdzok+1Q8VggtGjU7uHe6onFCSTlzhpf5Y3cRz A2EDrvw9R+xcTxWnxwNwsTZKtSQV86YFDPOY0Qi+beA== X-Received: by 2002:a17:906:b008:b0:9d5:d803:31ee with SMTP id v8-20020a170906b00800b009d5d80331eemr1616994ejy.34.1698843695914; Wed, 01 Nov 2023 06:01:35 -0700 (PDT) X-Google-Smtp-Source: AGHT+IERo4+i+XMFGmYaRUefWF1xxE2JKB60Ea01trIxcM+Pd00A2B92UcuBtp4Hc8zdtSJw0q8cqQ== X-Received: by 2002:a17:906:b008:b0:9d5:d803:31ee with SMTP id v8-20020a170906b00800b009d5d80331eemr1616963ejy.34.1698843695452; Wed, 01 Nov 2023 06:01:35 -0700 (PDT) Received: from redhat.com ([2a02:14f:1f7:e470:9af7:1504:1b35:8a09]) by smtp.gmail.com with ESMTPSA id oz3-20020a170906cd0300b00977eec7b7e8sm2378853ejb.68.2023.11.01.06.01.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Nov 2023 06:01:34 -0700 (PDT) Date: Wed, 1 Nov 2023 09:01:30 -0400 From: "Michael S. Tsirkin" To: Jason Wang Subject: Re: [PATCH 0/2] vdpa: Add logging operatins Message-ID: <20231101090114-mutt-send-email-mst@kernel.org> References: MIME-Version: 1.0 In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Disposition: inline Cc: eric.fangyi@huawei.com, linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org, Jiang Dongxu , eperezma , longpeng2@huawei.com, Siwei Liu X-BeenThere: virtualization@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Linux virtualization List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" T24gTW9uLCBTZXAgMTEsIDIwMjMgYXQgMDI6NTY6NThQTSArMDgwMCwgSmFzb24gV2FuZyB3cm90 ZToKPiBBZGRpbmcgRXVnZW5pbyBhbmQgU2kgV2VpLgo+IAo+IE9uIFNhdCwgQXVnIDI2LCAyMDIz IGF0IDk6MjTigK9BTSBKaWFuZyBEb25neHUgPGppYW5nZG9uZ3h1MUBodWF3ZWkuY29tPiB3cm90 ZToKPiA+Cj4gPiBGcm9tOiBqaWFuZ2Rvbmd4dSA8amlhbmdkb25neHUxQGh1YXdlaS5jb20+Cj4g Pgo+ID4gQ3VycmVudGx5LCB0aGUgdmRwYSBkZXZpY2Ugc3VwcG9ydHMgc3VzcGVuZCBhbmQgcmVz dW1lIG9wZXJhdGlvbnMuCj4gPiBUbyBzdXBwb3J0IHZkcGEgZGV2aWNlIGxpdmUgbWlncmF0aW9u LCB3ZSBuZWVkIHRvIHN1cHBvcnQgbG9nZ2luZwo+ID4gb3BlcmF0aW9ucyBhbmQgZGV2aWNlIHN0 YXRlIHNhdmUvbG9hZCBvcGVydGlvbnMuCj4gPgo+ID4gVGhlc2Ugc2VyaWVzIGludHJvZHVjZXMg c29tZSBuZXcgb3BlcmF0aW9ucyBmb3IgdmRwYSBkZXZpY2VzLgo+ID4gVGhleSBhbGxvdyB2ZHBh IHRvIGVuYWJsZSBsb2dnaW5nIHdoaWxlIHZtIHN0YXJ0IGxpdmUgbWlncmF0aW9uLgo+ID4KPiA+ IEFuZCBJIHdpbGwgc3VibWl0IGFub3RoZXIgcGF0Y2hlcyBhYm91dCBzYXZpbmcgYW5kIGxvYWRp bmcKPiA+IHZkcGEgZGV2aWNlIHN0YXRlIGxhdGVyLgo+IAo+IFRoYW5rcyBmb3Igd29ya2luZyBv biB0aGlzLCBJIGhhdmUgc2V2ZXJhbCBxdWVzdGlvbnM6Cj4gCj4gMSkgSXMgdGhlcmUgYW4gZXhh bXBsZSBpbXBsZW1lbnRhdGlvbiBvZiB0aGUgbG9nZ2luZyBpbiB0aGUgZHJpdmVycz8KPiBXZSBu ZWVkIGEgcmVhbCB1c2VyIGluIG9yZGVyIHRvIG1lcmdlIHRoaXMuCj4gMikgSXMgdGhlIGxvZ2dp bmcgYmFzZWQgb24gSU9WQSBvciBWQT8gSG93IHRoZSBETUEgaXNvbGF0aW9uIGlzIGJlaW5nCj4g ZG9uZSB3aXRoIHRoaXM/IERvIHdlIG5lZWQgYSBTRVRfTE9HR0lOR19BU0lEIHVBUEkgZm9yIHRo aXM/IChXZSBoYWQKPiBzb21lIGRpc2N1c3Npb24gb24gdGhpcyBpbiB0aGUgcGFzdCkuCj4gCj4g VGhhbmtzCgoKTm8gYW5zd2VyIHNvIGZhciBzbyBJJ2xsIGRyb3AgdGhpcyBmb3Igbm93LgoKPiA+ Cj4gPiBqaWFuZ2Rvbmd4dSAoMik6Cj4gPiAgIHZkcGE6IGFkZCBsb2cgb3BlcmF0aW9ucwo+ID4g ICB2aG9zdC12ZHBhOiBhZGQgdUFQSSBmb3IgbG9nZ2luZwo+ID4KPiA+ICBkcml2ZXJzL3Zob3N0 L3ZkcGEuYyAgICAgICB8IDQ5ICsrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysrKysr Cj4gPiAgaW5jbHVkZS9saW51eC92ZHBhLmggICAgICAgfCAxNCArKysrKysrKysrKwo+ID4gIGlu Y2x1ZGUvdWFwaS9saW51eC92aG9zdC5oIHwgIDQgKysrKwo+ID4gIDMgZmlsZXMgY2hhbmdlZCwg NjcgaW5zZXJ0aW9ucygrKQo+ID4KPiA+IC0tCj4gPiAyLjI3LjAKPiA+CgpfX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fXwpWaXJ0dWFsaXphdGlvbiBtYWlsaW5n IGxpc3QKVmlydHVhbGl6YXRpb25AbGlzdHMubGludXgtZm91bmRhdGlvbi5vcmcKaHR0cHM6Ly9s aXN0cy5saW51eGZvdW5kYXRpb24ub3JnL21haWxtYW4vbGlzdGluZm8vdmlydHVhbGl6YXRpb24= 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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EE2CFC4332F for ; Wed, 1 Nov 2023 13:02:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1344027AbjKANCe (ORCPT ); Wed, 1 Nov 2023 09:02:34 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1343956AbjKANCb (ORCPT ); Wed, 1 Nov 2023 09:02:31 -0400 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1468DB7 for ; Wed, 1 Nov 2023 06:01:42 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1698843701; 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: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=U25hlv0d5a4u4nzaxOvc1rnVpT1wnO8Tahwawd9Dugw=; b=PN6kwg3lGGdEjG1TPyotGwaYQUAa6H1UeO0F9uzBzVgnxlXI6Or8+wW8ditydxJc1uCyZN jFr+NLGE6N4RckSumNEuOHGAizJ3UzsrmbMFdBr7F4siW3j4RVVCqfjUy3Bye8vXjKIekg ZNY0YvzTOXXkV0aL+MfnFSijzuqyMm0= Received: from mail-ej1-f71.google.com (mail-ej1-f71.google.com [209.85.218.71]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-343-2ezJ4zgFPuanvqmoCi_2Yw-1; Wed, 01 Nov 2023 09:01:37 -0400 X-MC-Unique: 2ezJ4zgFPuanvqmoCi_2Yw-1 Received: by mail-ej1-f71.google.com with SMTP id a640c23a62f3a-9ae0601d689so453474966b.0 for ; Wed, 01 Nov 2023 06:01:36 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1698843696; x=1699448496; h=in-reply-to:content-transfer-encoding:content-disposition :mime-version:references:message-id:subject:cc:to:from:date :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=U25hlv0d5a4u4nzaxOvc1rnVpT1wnO8Tahwawd9Dugw=; b=nl7RyQ/CvI7uQ82spho6QUmYEscK7TCJc8hv6QWW2HPF+yLP4hhFzEwnVA7aBaOXb3 rORK4zhn9AHKba/rumOkGawpKQbvMo+Xa+zNU6P9uR93Q5ROX0shE9wwAo8xmLS2m73P 1ce4xT9hNNLv3ZeTPlFuxkBt7uTaM49LGBhec1csPhw7GBAXZftyyhZVzviJ17CqTZKs CRs77OmkvsUnIEY4qdLbESL4Qc3na/akGarIROnKsZWRiQixwLip5L+a+sjilU3ZxF2c cnfEpzWsNs7pSrNlg8Uy29fG1T4EFSrcGqhN61o9juJn6wQfLlcc1fDxiY9jO6xeAGRl WkNA== X-Gm-Message-State: AOJu0YzMxeUCZY3Jc5tCSHcBeQ45QooC8qpJtMomUN78qdrTTEzu7Ez+ uxQpUyQ+0SbygBUdohhPEOOrExKzPvis7yk9pD84tGkZpJkm7nfRm/60x0xRdVH0v9HmZeLo52R YYgyVMuVQE+PbFjodX+cw0L0d X-Received: by 2002:a17:906:b008:b0:9d5:d803:31ee with SMTP id v8-20020a170906b00800b009d5d80331eemr1617001ejy.34.1698843695927; Wed, 01 Nov 2023 06:01:35 -0700 (PDT) X-Google-Smtp-Source: AGHT+IERo4+i+XMFGmYaRUefWF1xxE2JKB60Ea01trIxcM+Pd00A2B92UcuBtp4Hc8zdtSJw0q8cqQ== X-Received: by 2002:a17:906:b008:b0:9d5:d803:31ee with SMTP id v8-20020a170906b00800b009d5d80331eemr1616963ejy.34.1698843695452; Wed, 01 Nov 2023 06:01:35 -0700 (PDT) Received: from redhat.com ([2a02:14f:1f7:e470:9af7:1504:1b35:8a09]) by smtp.gmail.com with ESMTPSA id oz3-20020a170906cd0300b00977eec7b7e8sm2378853ejb.68.2023.11.01.06.01.32 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Nov 2023 06:01:34 -0700 (PDT) Date: Wed, 1 Nov 2023 09:01:30 -0400 From: "Michael S. Tsirkin" To: Jason Wang Cc: Jiang Dongxu , virtualization@lists.linux-foundation.org, linux-kernel@vger.kernel.org, longpeng2@huawei.com, eric.fangyi@huawei.com, eperezma , Siwei Liu Subject: Re: [PATCH 0/2] vdpa: Add logging operatins Message-ID: <20231101090114-mutt-send-email-mst@kernel.org> References: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Sep 11, 2023 at 02:56:58PM +0800, Jason Wang wrote: > Adding Eugenio and Si Wei. > > On Sat, Aug 26, 2023 at 9:24 AM Jiang Dongxu wrote: > > > > From: jiangdongxu > > > > Currently, the vdpa device supports suspend and resume operations. > > To support vdpa device live migration, we need to support logging > > operations and device state save/load opertions. > > > > These series introduces some new operations for vdpa devices. > > They allow vdpa to enable logging while vm start live migration. > > > > And I will submit another patches about saving and loading > > vdpa device state later. > > Thanks for working on this, I have several questions: > > 1) Is there an example implementation of the logging in the drivers? > We need a real user in order to merge this. > 2) Is the logging based on IOVA or VA? How the DMA isolation is being > done with this? Do we need a SET_LOGGING_ASID uAPI for this? (We had > some discussion on this in the past). > > Thanks No answer so far so I'll drop this for now. > > > > jiangdongxu (2): > > vdpa: add log operations > > vhost-vdpa: add uAPI for logging > > > > drivers/vhost/vdpa.c | 49 ++++++++++++++++++++++++++++++++++++++ > > include/linux/vdpa.h | 14 +++++++++++ > > include/uapi/linux/vhost.h | 4 ++++ > > 3 files changed, 67 insertions(+) > > > > -- > > 2.27.0 > >