From patchwork Wed May 8 09:03:44 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Duan, Zhenzhong" X-Patchwork-Id: 13658286 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 350F5C04FFE for ; Wed, 8 May 2024 09:10:51 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1s4dHU-0000ro-01; Wed, 08 May 2024 05:08:08 -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 1s4dH9-0000CE-3D for qemu-devel@nongnu.org; Wed, 08 May 2024 05:07:48 -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 1s4dGz-0005S1-F9 for qemu-devel@nongnu.org; Wed, 08 May 2024 05:07:38 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1715159258; x=1746695258; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=VOrfu7fZiy+3eHvD+lVlGibrcIGk/lLlGO5XtB2n6eA=; b=FZtH8yaLHUqpg2Ks1DsExECktl+LGvW7aF+ATqRIeo2lL9cKLRiBN5es M/p3eziFEuBKv954dz3C1chyeFA3d2rLKVL6L9Tewqbf44ZVZrXm7kClG x1wnjfk7N9UeFNxWxNkSTzcttxi7IH0uvQjVtUjokqS9Aqqw95V291ggy sm6c2pq5EclxxNcdCLm5BmCBg+bZ/JcwndQ2REjasyT+kSnqMzz3tN4BZ HNBGS9VtZdr5O+l2XSDh75jELhfPqPnKzWznnHkRDqeK7XCVHDTLOIGyE CYA0j3AyMgwmwWgzjN8BNwV1Dz1vSX51Zn25sIdoj7DFnpfr2IhDRwXyQ Q==; X-CSE-ConnectionGUID: UmMDms4GSkemDUJoMnQPGQ== X-CSE-MsgGUID: ZIPIwg3qQaeIzzQxWeM7pw== X-IronPort-AV: E=McAfee;i="6600,9927,11066"; a="11161002" X-IronPort-AV: E=Sophos;i="6.08,144,1712646000"; d="scan'208";a="11161002" 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 02:07:37 -0700 X-CSE-ConnectionGUID: jtMM3IBdTey840bjDO+a4w== X-CSE-MsgGUID: sohtGYNETSKo/YNsx5rwlA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.08,144,1712646000"; d="scan'208";a="29226526" 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 02:07:33 -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 , Marcel Apfelbaum Subject: [PATCH v5 09/19] vfio/iommufd: Implement HostIOMMUDeviceClass::realize() handler Date: Wed, 8 May 2024 17:03:44 +0800 Message-Id: <20240508090354.1815561-10-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 It calls iommufd_backend_get_device_info() to get host IOMMU related information and translate it into HostIOMMUDeviceCaps for query with .get_cap(). Introduce macro VTD_MGAW_FROM_CAP to get MGAW which equals to (aw_bits - 1). Signed-off-by: Zhenzhong Duan --- include/hw/i386/intel_iommu.h | 1 + hw/vfio/iommufd.c | 37 +++++++++++++++++++++++++++++++++++ 2 files changed, 38 insertions(+) diff --git a/include/hw/i386/intel_iommu.h b/include/hw/i386/intel_iommu.h index 7fa0a695c8..7d694b0813 100644 --- a/include/hw/i386/intel_iommu.h +++ b/include/hw/i386/intel_iommu.h @@ -47,6 +47,7 @@ OBJECT_DECLARE_SIMPLE_TYPE(IntelIOMMUState, INTEL_IOMMU_DEVICE) #define VTD_HOST_AW_48BIT 48 #define VTD_HOST_ADDRESS_WIDTH VTD_HOST_AW_39BIT #define VTD_HAW_MASK(aw) ((1ULL << (aw)) - 1) +#define VTD_MGAW_FROM_CAP(cap) ((cap >> 16) & 0x3fULL) #define DMAR_REPORT_F_INTR (1) diff --git a/hw/vfio/iommufd.c b/hw/vfio/iommufd.c index e4a507d55c..9d2e95e20e 100644 --- a/hw/vfio/iommufd.c +++ b/hw/vfio/iommufd.c @@ -25,6 +25,7 @@ #include "qemu/cutils.h" #include "qemu/chardev_open.h" #include "pci.h" +#include "hw/i386/intel_iommu_internal.h" static int iommufd_cdev_map(const VFIOContainerBase *bcontainer, hwaddr iova, ram_addr_t size, void *vaddr, bool readonly) @@ -619,6 +620,41 @@ static void vfio_iommu_iommufd_class_init(ObjectClass *klass, void *data) vioc->pci_hot_reset = iommufd_cdev_pci_hot_reset; }; +static bool hiod_iommufd_vfio_realize(HostIOMMUDevice *hiod, void *opaque, + Error **errp) +{ + VFIODevice *vdev = opaque; + HostIOMMUDeviceCaps *caps = &hiod->caps; + enum iommu_hw_info_type type; + union { + struct iommu_hw_info_vtd vtd; + } data; + + if (!iommufd_backend_get_device_info(vdev->iommufd, vdev->devid, + &type, &data, sizeof(data), errp)) { + return false; + } + + caps->type = type; + + switch (type) { + case IOMMU_HW_INFO_TYPE_INTEL_VTD: + caps->aw_bits = VTD_MGAW_FROM_CAP(data.vtd.cap_reg) + 1; + break; + case IOMMU_HW_INFO_TYPE_NONE: + break; + } + + return true; +} + +static void hiod_iommufd_vfio_class_init(ObjectClass *oc, void *data) +{ + HostIOMMUDeviceClass *hiodc = HOST_IOMMU_DEVICE_CLASS(oc); + + hiodc->realize = hiod_iommufd_vfio_realize; +}; + static const TypeInfo types[] = { { .name = TYPE_VFIO_IOMMU_IOMMUFD, @@ -627,6 +663,7 @@ static const TypeInfo types[] = { }, { .name = TYPE_HOST_IOMMU_DEVICE_IOMMUFD_VFIO, .parent = TYPE_HOST_IOMMU_DEVICE_IOMMUFD, + .class_init = hiod_iommufd_vfio_class_init, } };