From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by 2002:a17:505:32ab:b0:1be9:327d:8ee3 with SMTP id js11csp848521njb; Wed, 5 Feb 2025 04:36:39 -0800 (PST) X-Forwarded-Encrypted: i=2; AJvYcCW5Fma8CgbmlvDCDufC7Hgt+7DmriX4m3bELsjRzr+Y3NGUbXAZ2UMDwjLAkhwZbaNIFfE4UGzvTklj0Q==@linaro.org X-Google-Smtp-Source: AGHT+IE+IoiBXYjDdjSsmLm+VQj1iFujpg8QrI8pZzIYp0/F5uYBKAplZDsGN0uZfXRWD5gbvy8y X-Received: by 2002:a05:622a:510c:b0:467:75c3:89a8 with SMTP id d75a77b69052e-470281901c5mr37850771cf.14.1738758999409; Wed, 05 Feb 2025 04:36:39 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1738758999; cv=none; d=google.com; s=arc-20240605; b=lza21+Nr85OlwszdZyrSPlmyfPt6CKslvbr4HeWIIBuRF5nVQtZJKfjX0iHc4dKowu nJ4leP2+F4ju07yK8rFDp6KN1PEB0mR5dyzB3Tz/FOnGpEk31wqY9D/PMo3uZd5QPoKh jkWEzZBGpUE3yPRcGBx6kfN7Cw3YDnloWTTmhq5owp9+4XF8OwZ0fRERTHEdxph6g/WH Cfo4d+X6GtwPbYLKAI0dElKjJ02dGC3JaGm0I1G6rB8XgcH+uyUhXl87lKK8Ew9QDvdC 0364QFRB3Kz4R7qQC+FSHAra98TKMbwZ7WKNkL4wncIToICXvMK+ObtR3mMt31ME1gDG Wv0w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20240605; h=sender:errors-to:reply-to:list-subscribe:list-help:list-post :list-archive:list-unsubscribe:list-id:precedence :content-transfer-encoding:content-language:in-reply-to:from :references:cc:to:subject:user-agent:mime-version:date:message-id :dkim-signature; bh=oDgRhvAVYdvoxe7XBnXUhWpJbAGWmB4L9GDPUJxPhRk=; fh=OCF3wgulAtVrUEO8VmMifKKjKMJ8pJ3Wn4BHs7ur8/8=; b=P6zBmngR0KFdEVLsHfsDsh7YstWA3D64k2ZHj5fNOM81zvuFvzD+uKVDXyOrda5lcN m95uHDUvWL2Wu1CGU1/zeDIWnb8fnNFZvS0V1aAQ26e09cfkfgvT62BGnERROZHQ0Dre gwgtX7UnXY3jBAgZaUtxCwQ06cz2N+TbzrWMY0r8LtYsl0lCVs6odlGHHcvUI3MOLgEW s5QXUSRr0bgU3228h9HOeg3mcg4QYP1f+lwOiSVmQ3jSjoD2rdBuVkjIhp0VIlTE4wqR Q9Wj1s8SmwoPfdy9D5Izm9qm/kGy0YKF3U50O/Xfc4Vg6O9znoyUuhGFumYeo49RzM6R yBbQ==; dara=google.com ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=SQSraXx3; spf=pass (google.com: domain of qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id d75a77b69052e-470169f7ee5si51397071cf.59.2025.02.05.04.36.39 for (version=TLS1_2 cipher=ECDHE-ECDSA-CHACHA20-POLY1305 bits=256/256); Wed, 05 Feb 2025 04:36:39 -0800 (PST) Received-SPF: pass (google.com: domain of qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=pass header.i=@redhat.com header.s=mimecast20190719 header.b=SQSraXx3; spf=pass (google.com: domain of qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org"; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=redhat.com Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tfedD-0005UH-5v; Wed, 05 Feb 2025 07:35:51 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tfed7-0005TV-RT for qemu-arm@nongnu.org; Wed, 05 Feb 2025 07:35:46 -0500 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tfed5-0001kx-Ln for qemu-arm@nongnu.org; Wed, 05 Feb 2025 07:35:45 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1738758942; h=from:from:reply-to: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=oDgRhvAVYdvoxe7XBnXUhWpJbAGWmB4L9GDPUJxPhRk=; b=SQSraXx3GV9WSwTQ4K0oGA/ajTvDca9DlorgLcj+D1iY1Ove1tPTM04WfUcp+80RrqTo8q mAVONheU4E6mvn+p57VcaAGO/PdpOeD2aI6sZlLHIRWvAbu5u7BGRKWi6sJMf+Ep1ruXnf dac8ZFjKz1tukziTD6gPGp/OT8Y/33M= Received: from mail-wm1-f72.google.com (mail-wm1-f72.google.com [209.85.128.72]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-658--gbcOKgQOIqia6jlPPq4-g-1; Wed, 05 Feb 2025 07:35:41 -0500 X-MC-Unique: -gbcOKgQOIqia6jlPPq4-g-1 X-Mimecast-MFC-AGG-ID: -gbcOKgQOIqia6jlPPq4-g Received: by mail-wm1-f72.google.com with SMTP id 5b1f17b1804b1-436219070b4so34841165e9.1 for ; Wed, 05 Feb 2025 04:35:41 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1738758940; x=1739363740; h=content-transfer-encoding:in-reply-to:from:references:cc:to :content-language:subject:reply-to:user-agent:mime-version:date :message-id:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=oDgRhvAVYdvoxe7XBnXUhWpJbAGWmB4L9GDPUJxPhRk=; b=N9NbbHUhfavbwSihkYGtVRBonHk5fdr4lChNJi7aqnw+TatbgAOl2zEZhjcRo4Q96y VkdLgW4WfSh4qBjnL9of9d8IpFlag573hqYCQ9wAPd7BqssiuXV7U4DPsHLjsQSPwjdj lucwZeI+U/skQPC2S0YRxtvBQIxxXSlAKA/N+VTHCO4IUsmsOV2Z0zhXvLZVLqQdIvE0 bMhNg6YHmyObIyC0DM03xYYAgqO3tgRDwVLxPesa1HcRSP3UFU6vXhk7+9nJXSi2vyXX 0N6Cp+DUdu8MkjDlcPp8gnRfYiFyhe3+v+uo48MVYwjzHBmfH0nq75QBfECbOu9Pqbf7 zRZw== X-Forwarded-Encrypted: i=1; AJvYcCVYqb3stYRlCrf7zg+DPxS3vWVv/Jf4ycFWUrbTel2AcepBPEbJicNr6ckZjjffoV/Z4QTw4ySAfQ==@nongnu.org X-Gm-Message-State: AOJu0YxqWF7fqx/Do9QQfVCGc1fMk4AmeNNw3xa61FJs1oc6vOGCefAd f3/BnK72P6UzUB1vynXVyCWLfSCftCIEE/hQKjtwRhEHiaaSt/e7WQOxNbapFcbezy7wMzLOlFS Jzw7oKinByeClXw1BKG5vTmRab9PLMuG2sHJhdJXlN/44tL8Vvw== X-Gm-Gg: ASbGnctDXDDoZegUQGnABHtcO1B9yLSzniPd5ZcIx5dUKB7cb3K//OV0Vk7Z63hvgak I6JPk/y7o2j1v6c5rbGttcREssPigykOBOBi3abp0Lc7JrOU4SCQChqn8kOIxeBgkoDEi38from OGf03D40vBl3vsAG53QgaZVfCsGWypDPX46fPp3bVBluErCQkwvZG9EoXa05YlHP9xSzwaX9RPn kso5PUHtnrVo3n8FcBzl6H3b7gn7Mjsc79oCFh0JJkvZS5ZHUOtde5JXJYG2FkZk7nlr+Nw3Fjl GgOLrGeuKEfT0Ehh4XAX8crLuQvUlFSIZmpvRVz3jk8YoPJzG46d X-Received: by 2002:a05:600c:6d52:b0:434:f0df:a14 with SMTP id 5b1f17b1804b1-4390d8615c7mr18341895e9.2.1738758940129; Wed, 05 Feb 2025 04:35:40 -0800 (PST) X-Received: by 2002:a05:600c:6d52:b0:434:f0df:a14 with SMTP id 5b1f17b1804b1-4390d8615c7mr18341585e9.2.1738758939746; Wed, 05 Feb 2025 04:35:39 -0800 (PST) Received: from ?IPV6:2a01:e0a:59e:9d80:527b:9dff:feef:3874? ([2a01:e0a:59e:9d80:527b:9dff:feef:3874]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-38dad9a8663sm4386021f8f.6.2025.02.05.04.35.37 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 05 Feb 2025 04:35:38 -0800 (PST) Message-ID: Date: Wed, 5 Feb 2025 13:35:37 +0100 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH 0/5] hw/arm/virt: Add support for user-creatable nested SMMUv3 To: Nicolin Chen , Shameerali Kolothum Thodi Cc: "ddutile@redhat.com" , Peter Maydell , Jason Gunthorpe , =?UTF-8?Q?Daniel_P=2E_Berrang=C3=A9?= , "qemu-arm@nongnu.org" , "qemu-devel@nongnu.org" , Linuxarm , "Wangzhou (B)" , jiangkunkun , Jonathan Cameron , "zhangfei.gao@linaro.org" References: <20241108125242.60136-1-shameerali.kolothum.thodi@huawei.com> <329445b2f68a47269292aefb34584375@huawei.com> <77f736f6-9ef9-462b-916e-c8cfff279044@redhat.com> From: Eric Auger In-Reply-To: X-Mimecast-Spam-Score: 0 X-Mimecast-MFC-PROC-ID: zLWF9BikwAJq7s0d7EN4gGVi2GwxPJaHHKBbyjcDep0_1738758940 X-Mimecast-Originator: redhat.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Received-SPF: pass client-ip=170.10.133.124; envelope-from=eric.auger@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -15 X-Spam_score: -1.6 X-Spam_bar: - X-Spam_report: (-1.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, PDS_BTC_ID=0.498, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-arm@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: eric.auger@redhat.com Errors-To: qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org Sender: qemu-arm-bounces+alex.bennee=linaro.org@nongnu.org X-TUID: EVmuGRt7T+rc Hi Nicolin, On 2/5/25 1:08 AM, Nicolin Chen wrote: > On Tue, Feb 04, 2025 at 06:49:15PM +0100, Eric Auger wrote: >>> In summary, we will have the following series: >>> 1) HWPT uAPI patches in backends/iommufd.c (Zhenzhong or Shameer) >>> https://lore.kernel.org/qemu-devel/SJ0PR11MB6744943702EB5798EC9B3B9992E02@SJ0PR11MB6744.namprd11.prod.outlook.com/ >>> 2) vIOMMU uAPI patches in backends/iommufd.c (I will rebase/send) >> for 1 and 2, are you taking about the "Add VIOMMU infrastructure support >> " series in Shameer's branch: private-smmuv3-nested-dev-rfc-v1. >> Sorry I may instead refer to NVidia or Intel's branch but I am not sure >> about the last ones. > That "vIOMMU infrastructure" is for 2, yes. > > For 1, it's inside the Intel's series: > "cover-letter: intel_iommu: Enable stage-1 translation for passthrough device" > > So, we need to extract them out and make it separately.. OK > >>> 3) vSMMUv3 patches for HW-acc/nesting (Hoping Don/you could take over) >> We can start sending it upstream assuming we have a decent test environment. >> >> However in >> https://lore.kernel.org/all/329445b2f68a47269292aefb34584375@huawei.com/ >> >> Shameer suggested he may include it in his SMMU multi instance series. >> What do you both prefer? > Sure, I think it's good to include those patches, though I believe > we need to build a new shared branch as Shameer's branch might not > reflect the latest kernel uAPI header. > > Here is a new branch on top of latest master tree (v9.2.50): > https://github.com/nicolinc/qemu/commits/wip/for_shameer_02042025 > > I took HWPT patches from Zhenzhong's series and rebased all related > changes from my tree. I did some sanity and it should work with RMR. > > Shameer, would you please try this branch and then integrate your > series on top of the following series? > cover-letter: Add HW accelerated nesting support for arm SMMUv3 > cover-letter: Add vIOMMU-based nesting infrastructure support > cover-letter: Add HWPT-based nesting infrastructure support > Basically, just replace my old multi-instance series with yours, to > create a shared branch for all of us. > > Eric, perhaps you can start to look at the these series. Even the > first two iommufd series are a bit of rough integrations :) OK I am starting this week Eric > > Thanks > Nicolin >