From patchwork Tue May 7 09:20:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13656454 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 BE6A6C25B75 for ; Tue, 7 May 2024 09:24:42 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4H3H-0000Zo-1r; Tue, 07 May 2024 05:24:06 -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 1s4H2s-0000Nd-De for qemu-devel@nongnu.org; Tue, 07 May 2024 05:23:34 -0400 Received: from mgamail.intel.com ([198.175.65.21]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1s4H2p-0000Bi-RN for qemu-devel@nongnu.org; Tue, 07 May 2024 05:23:33 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715073811; x=1746609811; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=oPF9tpE8nLZWTDT2z2eErDfE+ZYa4wqHG4lFnjm7wjk=; b=IjVGIKY5rtEOoO57w43xAqb78CYGans/7OpR2nzfth94137LnGrpoimA 7ru8RQxKHsbenPYUTqXrdFR3P53ePC33NfoP15ojkyatwBsXk7IfmaKeK f5MMiARrrOVvWqc32Bl8+dtU2fGxCzTcf657IPcBwxNJhQ7ISeeIp3PtV gTH7NdIa95GnGZ6289DfQiVl+s26rUi9EHLgWQun2GqHjURSMq2KouvmM 4sR5QBNUj1jZ4mBvbm7rfIv9/vt3w3Kow50j50KcNC/QcqsBF2GvtjJdv ObtgZOUiFCbaKBClSfuwIfC3agLEr9cwc1hkebWqhMwa6oXHpysLTmZMK w==; X-CSE-ConnectionGUID: Fx8hay5pS3u+F+goZ7cZZQ== X-CSE-MsgGUID: UMynPG11Q+qO0D6AO7LEGg== X-IronPort-AV: E=McAfee;i="6600,9927,11065"; a="10785232" X-IronPort-AV: E=Sophos;i="6.07,260,1708416000"; d="scan'208";a="10785232" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa113.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2024 02:23:29 -0700 X-CSE-ConnectionGUID: XNeCBLOYRZCA3Ird0HGYfQ== X-CSE-MsgGUID: Dd4s3J5aSt+3NZLrXCLJWQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.07,260,1708416000"; d="scan'208";a="28553330" Received: from unknown (HELO SPR-S2600BT.bj.intel.com) ([10.240.192.124]) by fmviesa010-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 07 May 2024 02:23:26 -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 v4 07/19] vfio/container: Implement HostIOMMUDeviceClass::realize() handler Date: Tue, 7 May 2024 17:20:31 +0800 Message-Id: <20240507092043.1172717-8-zhenzhong.duan@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240507092043.1172717-1-zhenzhong.duan@intel.com> References: <20240507092043.1172717-1-zhenzhong.duan@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=198.175.65.21; 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 | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/hw/vfio/container.c b/hw/vfio/container.c index 1b4fc2f3e8..8ce38a4a01 100644 --- a/hw/vfio/container.c +++ b/hw/vfio/container.c @@ -1134,6 +1134,33 @@ 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); + + /* There is no VFIO uAPI to query host platform IOMMU type */ + hiod->caps.type = IOMMU_HW_INFO_TYPE_NONE; + + 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 +1169,7 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_LEGACY_VFIO, .parent = TYPE_HOST_IOMMU_DEVICE, + .class_init = hiod_legacy_vfio_class_init, } };