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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 4F264CCF9F8 for ; Mon, 3 Nov 2025 14:57:07 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1vFvz9-00070H-12; Mon, 03 Nov 2025 09:56:44 -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 1vFvyw-0006uI-Tm; Mon, 03 Nov 2025 09:56:31 -0500 Received: from [185.176.79.56] (helo=frasgout.his.huawei.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1vFvyp-0007Zq-Na; Mon, 03 Nov 2025 09:56:29 -0500 Received: from mail.maildlp.com (unknown [172.18.186.216]) by frasgout.his.huawei.com (SkyGuard) with ESMTPS id 4d0ZR51Wd4zHnGgk; Mon, 3 Nov 2025 22:56:17 +0800 (CST) Received: from dubpeml100005.china.huawei.com (unknown [7.214.146.113]) by mail.maildlp.com (Postfix) with ESMTPS id C5E7514033F; Mon, 3 Nov 2025 22:56:18 +0800 (CST) Received: from localhost (10.203.177.15) by dubpeml100005.china.huawei.com (7.214.146.113) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Mon, 3 Nov 2025 14:56:17 +0000 Date: Mon, 3 Nov 2025 14:56:16 +0000 To: Shameer Kolothum CC: , , , , , , , , , , , , , , , , Subject: Re: [PATCH v5 25/32] hw/arm/smmuv3: Add accel property for SMMUv3 device Message-ID: <20251103145616.00000420@huawei.com> In-Reply-To: <20251031105005.24618-26-skolothumtho@nvidia.com> References: <20251031105005.24618-1-skolothumtho@nvidia.com> <20251031105005.24618-26-skolothumtho@nvidia.com> X-Mailer: Claws Mail 4.3.0 (GTK 3.24.42; x86_64-w64-mingw32) MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Originating-IP: [10.203.177.15] X-ClientProxiedBy: lhrpeml100011.china.huawei.com (7.191.174.247) To dubpeml100005.china.huawei.com (7.214.146.113) X-Host-Lookup-Failed: Reverse DNS lookup failed for 185.176.79.56 (deferred) Received-SPF: pass client-ip=185.176.79.56; envelope-from=jonathan.cameron@huawei.com; helo=frasgout.his.huawei.com X-Spam_score_int: -33 X-Spam_score: -3.4 X-Spam_bar: --- X-Spam_report: (-3.4 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-to: Jonathan Cameron From: Jonathan Cameron via Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Fri, 31 Oct 2025 10:49:58 +0000 Shameer Kolothum wrote: > Introduce an =E2=80=9Caccel=E2=80=9D property to enable accelerator mode. >=20 > Live migration is currently unsupported when accelerator mode is enabled, > so a migration blocker is added. >=20 > Because this mode relies on IORT RMR for MSI support, accelerator mode is > not supported for device tree boot. >=20 > Also, in the accelerated SMMUv3 case, the host SMMUv3 is configured in ne= sted > mode (S1 + S2), and the guest owns the Stage-1 page table. Therefore, we > expose only Stage-1 to the guest to ensure it uses the correct page table > format. >=20 > Reviewed-by: Nicolin Chen > Reviewed-by: Eric Auger > Tested-by: Zhangfei Gao > Signed-off-by: Shameer Kolothum Reviewed-by: Jonathan Cameron