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 X-Spam-Level: X-Spam-Status: No, score=-14.8 required=3.0 tests=BAYES_00, DATE_IN_FUTURE_06_12,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0632CC433DB for ; Tue, 2 Mar 2021 12:56:15 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 5B16661606 for ; Tue, 2 Mar 2021 12:56:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 5B16661606 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:51986 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lH4ZR-0001NT-66 for qemu-devel@archiver.kernel.org; Tue, 02 Mar 2021 07:56:13 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:33002) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lH4KB-0007jp-VL for qemu-devel@nongnu.org; Tue, 02 Mar 2021 07:40:28 -0500 Received: from mga05.intel.com ([192.55.52.43]:62468) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lH4KA-0002nT-2P for qemu-devel@nongnu.org; Tue, 02 Mar 2021 07:40:27 -0500 IronPort-SDR: SGIqMdRTmlIyO1dy71edT40ugJ3qJ7iY02v0f8t+FurgzkEojTbJnLJo2roc+AAEeSlhKYA5r9 fpHxgs996rOQ== X-IronPort-AV: E=McAfee;i="6000,8403,9910"; a="271803101" X-IronPort-AV: E=Sophos;i="5.81,216,1610438400"; d="scan'208";a="271803101" Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Mar 2021 04:40:25 -0800 IronPort-SDR: 3m2tH7iTtFMEWJ1fNEtLOwW5jsZf0m2Tm6vYxUwFZllkkL72c4tFJWJLN3nHDOWSdjpTDEyAty eT6FiT3EfZxA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.81,216,1610438400"; d="scan'208";a="427472924" Received: from yiliu-dev.bj.intel.com (HELO dual-ub.bj.intel.com) ([10.238.156.135]) by fmsmga004.fm.intel.com with ESMTP; 02 Mar 2021 04:40:20 -0800 From: Liu Yi L To: qemu-devel@nongnu.org, alex.williamson@redhat.com, peterx@redhat.com, jasowang@redhat.com Subject: [RFC v11 12/25] vfio: add HostIOMMUContext support Date: Wed, 3 Mar 2021 04:38:14 +0800 Message-Id: <20210302203827.437645-13-yi.l.liu@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20210302203827.437645-1-yi.l.liu@intel.com> References: <20210302203827.437645-1-yi.l.liu@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=192.55.52.43; envelope-from=yi.l.liu@intel.com; helo=mga05.intel.com X-Spam_score_int: -22 X-Spam_score: -2.3 X-Spam_bar: -- X-Spam_report: (-2.3 / 5.0 requ) BAYES_00=-1.9, DATE_IN_FUTURE_06_12=1.947, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jean-philippe@linaro.org, kevin.tian@intel.com, yi.l.liu@intel.com, Yi Sun , kvm@vger.kernel.org, mst@redhat.com, jun.j.tian@intel.com, eric.auger@redhat.com, yi.y.sun@intel.com, Jacob Pan , pbonzini@redhat.com, Lingshan.Zhu@intel.com, hao.wu@intel.com, david@gibson.dropbear.id.au Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This patch adds support for HostIOMMUContext, implements bind_stage1_pgtbl() and unbind_stage1_pgtbl() for vIOMMU to setup dual stage DMA translation for passthru devices on hardware. Cc: Kevin Tian Cc: Jacob Pan Cc: Peter Xu Cc: Eric Auger Cc: Yi Sun Cc: David Gibson Cc: Alex Williamson Signed-off-by: Liu Yi L --- hw/vfio/common.c | 70 +++++++++++++++++++++++++++ include/hw/iommu/host_iommu_context.h | 3 ++ include/hw/vfio/vfio-common.h | 3 ++ 3 files changed, 76 insertions(+) diff --git a/hw/vfio/common.c b/hw/vfio/common.c index 883815d5b0..433938c245 100644 --- a/hw/vfio/common.c +++ b/hw/vfio/common.c @@ -1575,6 +1575,54 @@ static int vfio_get_iommu_type(VFIOContainer *container, return ret; } +static int vfio_host_iommu_ctx_bind_stage1_pgtbl(HostIOMMUContext *iommu_ctx, + struct iommu_gpasid_bind_data *bind) +{ + VFIOContainer *container = container_of(iommu_ctx, + VFIOContainer, iommu_ctx); + struct vfio_iommu_type1_nesting_op *op; + unsigned long argsz; + int ret = 0; + + argsz = sizeof(*op) + sizeof(*bind); + op = g_malloc0(argsz); + op->argsz = argsz; + op->flags = VFIO_IOMMU_NESTING_OP_BIND_PGTBL; + memcpy(&op->data, bind, sizeof(*bind)); + + if (ioctl(container->fd, VFIO_IOMMU_NESTING_OP, op)) { + ret = -errno; + error_report("%s: pasid (%llu) bind failed: %m", + __func__, bind->hpasid); + } + g_free(op); + return ret; +} + +static int vfio_host_iommu_ctx_unbind_stage1_pgtbl(HostIOMMUContext *iommu_ctx, + struct iommu_gpasid_bind_data *unbind) +{ + VFIOContainer *container = container_of(iommu_ctx, + VFIOContainer, iommu_ctx); + struct vfio_iommu_type1_nesting_op *op; + unsigned long argsz; + int ret = 0; + + argsz = sizeof(*op) + sizeof(*unbind); + op = g_malloc0(argsz); + op->argsz = argsz; + op->flags = VFIO_IOMMU_NESTING_OP_UNBIND_PGTBL; + memcpy(&op->data, unbind, sizeof(*unbind)); + + if (ioctl(container->fd, VFIO_IOMMU_NESTING_OP, op)) { + ret = -errno; + error_report("%s: pasid (%llu) unbind failed: %m", + __func__, unbind->hpasid); + } + g_free(op); + return ret; +} + static int vfio_init_container(VFIOContainer *container, int group_fd, bool want_nested, Error **errp) { @@ -2268,3 +2316,25 @@ int vfio_eeh_as_op(AddressSpace *as, uint32_t op) } return vfio_eeh_container_op(container, op); } + +static void vfio_host_iommu_context_class_init(ObjectClass *klass, + void *data) +{ + HostIOMMUContextClass *hicxc = HOST_IOMMU_CONTEXT_CLASS(klass); + + hicxc->bind_stage1_pgtbl = vfio_host_iommu_ctx_bind_stage1_pgtbl; + hicxc->unbind_stage1_pgtbl = vfio_host_iommu_ctx_unbind_stage1_pgtbl; +} + +static const TypeInfo vfio_host_iommu_context_info = { + .parent = TYPE_HOST_IOMMU_CONTEXT, + .name = TYPE_VFIO_HOST_IOMMU_CONTEXT, + .class_init = vfio_host_iommu_context_class_init, +}; + +static void vfio_register_types(void) +{ + type_register_static(&vfio_host_iommu_context_info); +} + +type_init(vfio_register_types) diff --git a/include/hw/iommu/host_iommu_context.h b/include/hw/iommu/host_iommu_context.h index 41c4176c15..3498a3e25d 100644 --- a/include/hw/iommu/host_iommu_context.h +++ b/include/hw/iommu/host_iommu_context.h @@ -33,6 +33,9 @@ #define TYPE_HOST_IOMMU_CONTEXT "qemu:host-iommu-context" #define HOST_IOMMU_CONTEXT(obj) \ OBJECT_CHECK(HostIOMMUContext, (obj), TYPE_HOST_IOMMU_CONTEXT) +#define HOST_IOMMU_CONTEXT_CLASS(klass) \ + OBJECT_CLASS_CHECK(HostIOMMUContextClass, (klass), \ + TYPE_HOST_IOMMU_CONTEXT) #define HOST_IOMMU_CONTEXT_GET_CLASS(obj) \ OBJECT_GET_CLASS(HostIOMMUContextClass, (obj), \ TYPE_HOST_IOMMU_CONTEXT) diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index 293d3785f3..55241ee270 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -26,6 +26,7 @@ #include "qemu/notify.h" #include "ui/console.h" #include "hw/display/ramfb.h" +#include "hw/iommu/host_iommu_context.h" #ifdef CONFIG_LINUX #include #endif @@ -33,6 +34,8 @@ #define VFIO_MSG_PREFIX "vfio %s: " +#define TYPE_VFIO_HOST_IOMMU_CONTEXT "qemu:vfio-host-iommu-context" + enum { VFIO_DEVICE_TYPE_PCI = 0, VFIO_DEVICE_TYPE_PLATFORM = 1, -- 2.25.1