From patchwork Wed May 8 09:03:42 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13658271 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 E7F35C41513 for ; Wed, 8 May 2024 09:08:36 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4dHR-0000ZV-O0; Wed, 08 May 2024 05:08:05 -0400 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 1s4dGx-0000A6-LZ for qemu-devel@nongnu.org; Wed, 08 May 2024 05:07:35 -0400 Received: from mgamail.intel.com ([198.175.65.18]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s4dGq-0005QH-SV for qemu-devel@nongnu.org; Wed, 08 May 2024 05:07:30 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715159249; x=1746695249; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=MjIaxja7ZxYGI0e28fQ6Z2a0sW+X9+K6isij7W/S8uA=; b=RMTZmIrnTfg8lX5KUMY6SD6WphGcbH2VwsPO64syApXFgglo1+cbY6od 6rarS6faGHNQzFLpmRNHX+EfqZmfZtOfi5Pywi+lAysTqX00QEaicSGIf i94hZKIislZ6RzHAwXLqvtf4d45h+3R3BROh2vD2QY7mNdc6zm/RXPiwI J82s4GhlDddBMRn+518UcsB2aCTEVxg9VVxpAAJd+rcogJhfuu7xr0+CO r+WatI0HjJZiM+kvRCxNMh6irG6cP60G5zc9eRBEgBhLYkCElNilYjZs6 scOkjSEswjLVRECQRG3BqGOtHmvjg8qkOtRU/vF+5Sm/E9ELMXcXOUdIt g==; X-CSE-ConnectionGUID: hKBHO9etQAaR5yqWnV3P4Q== X-CSE-MsgGUID: BuCXyB+iQua0X+Fm1z8JlA== X-IronPort-AV: E=McAfee;i="6600,9927,11066"; a="11160980" X-IronPort-AV: E=Sophos;i="6.08,144,1712646000"; d="scan'208";a="11160980" Received: from orviesa006.jf.intel.com ([10.64.159.146]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 02:07:29 -0700 X-CSE-ConnectionGUID: P4IpsjssSUCBd+EsUibvDw== X-CSE-MsgGUID: QgjF/ZowQcuE8RKxw9INGQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,144,1712646000"; d="scan'208";a="29226493" Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.124]) by orviesa006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2024 02:07:24 -0700 From: Zhenzhong Duan To: qemu-devel@nongnu.org Cc: alex.williamson@redhat.com, clg@redhat.com, eric.auger@redhat.com, mst@redhat.com, peterx@redhat.com, jasowang@redhat.com, jgg@nvidia.com, nicolinc@nvidia.com, joao.m.martins@oracle.com, clement.mathieu--drif@eviden.com, kevin.tian@intel.com, yi.l.liu@intel.com, chao.p.peng@intel.com, Zhenzhong Duan Subject: [PATCH v5 07/19] vfio/container: Implement HostIOMMUDeviceClass::realize() handler Date: Wed, 8 May 2024 17:03:42 +0800 Message-Id: <20240508090354.1815561-8-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240508090354.1815561-1-zhenzhong.duan@intel.com> References: <20240508090354.1815561-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=198.175.65.18; envelope-from=zhenzhong.duan@intel.com; helo=mgamail.intel.com X-Spam_score_int: -49 X-Spam_score: -5.0 X-Spam_bar: ----- X-Spam_report: (-5.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.581, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_MED=-2.3, 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: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Utilize range_get_last_bit() to get host IOMMU address width and package it in HostIOMMUDeviceCaps for query with .get_cap(). Signed-off-by: Zhenzhong Duan --- hw/vfio/container.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/hw/vfio/container.c b/hw/vfio/container.c index 1b4fc2f3e8..b872f6f201 100644 --- a/hw/vfio/container.c +++ b/hw/vfio/container.c @@ -1134,6 +1134,31 @@ static void vfio_iommu_legacy_class_init(ObjectClass *klass, void *data) vioc->pci_hot_reset = vfio_legacy_pci_hot_reset; }; +static bool hiod_legacy_vfio_realize(HostIOMMUDevice *hiod, void *opaque, + Error **errp) +{ + VFIODevice *vdev = opaque; + /* iova_ranges is a sorted list */ + GList *l = g_list_last(vdev->bcontainer->iova_ranges); + + /* Only support query HOST_IOMMU_DEVICE_CAP_AW_BITS with legacy backend */ + if (l) { + Range *range = l->data; + hiod->caps.aw_bits = range_get_last_bit(range) + 1; + } else { + hiod->caps.aw_bits = 0xff; + } + + return true; +} + +static void hiod_legacy_vfio_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hioc = HOST_IOMMU_DEVICE_CLASS(oc); + + hioc->realize = hiod_legacy_vfio_realize; +}; + static const TypeInfo types[] = { { .name = TYPE_VFIO_IOMMU_LEGACY, @@ -1142,6 +1167,7 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_LEGACY_VFIO, .parent = TYPE_HOST_IOMMU_DEVICE, + .class_init = hiod_legacy_vfio_class_init, } };