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=-6.7 required=3.0 tests=DATE_IN_PAST_24_48, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,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 D6DA8C0650E for ; Sat, 6 Jul 2019 11:19:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id ADEB72089C for ; Sat, 6 Jul 2019 11:19:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726607AbfGFLTe (ORCPT ); Sat, 6 Jul 2019 07:19:34 -0400 Received: from mga12.intel.com ([192.55.52.136]:5514 "EHLO mga12.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726910AbfGFLTe (ORCPT ); Sat, 6 Jul 2019 07:19:34 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga005.fm.intel.com ([10.253.24.32]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Jul 2019 04:19:33 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,458,1557212400"; d="scan'208";a="363355053" Received: from yiliu-dev.bj.intel.com ([10.238.156.139]) by fmsmga005.fm.intel.com with ESMTP; 06 Jul 2019 04:19:31 -0700 From: Liu Yi L To: qemu-devel@nongnu.org, mst@redhat.com, pbonzini@redhat.com, alex.williamson@redhat.com, peterx@redhat.com Cc: eric.auger@redhat.com, david@gibson.dropbear.id.au, tianyu.lan@intel.com, kevin.tian@intel.com, yi.l.liu@intel.com, jun.j.tian@intel.com, yi.y.sun@intel.com, kvm@vger.kernel.org, Jacob Pan , Yi Sun Subject: [RFC v1 15/18] vfio/pci: adds support for PASID-based iotlb flush Date: Fri, 5 Jul 2019 19:01:48 +0800 Message-Id: <1562324511-2910-16-git-send-email-yi.l.liu@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1562324511-2910-1-git-send-email-yi.l.liu@intel.com> References: <1562324511-2910-1-git-send-email-yi.l.liu@intel.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org This patch adds support for propagating guest PASID-based iotlb flush to host via vfio container ioctl. Cc: Kevin Tian Cc: Jacob Pan Cc: Peter Xu Cc: Eric Auger Cc: Yi Sun Cc: David Gibson Signed-off-by: Liu Yi L --- hw/vfio/pci.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 892b46c..d8b84a5 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -2796,11 +2796,34 @@ static void vfio_pci_device_unbind_gpasid(PCIBus *bus, int32_t devfn, g_free(bind); } +static void vfio_pci_device_flush_pasid_iotlb(PCIBus *bus, int32_t devfn, + struct iommu_cache_invalidate_info *info) +{ + PCIDevice *pdev = bus->devices[devfn]; + VFIOPCIDevice *vdev = DO_UPCAST(VFIOPCIDevice, pdev, pdev); + VFIOContainer *container = vdev->vbasedev.group->container; + struct vfio_iommu_type1_cache_invalidate cache_inv; + unsigned long argsz; + + argsz = sizeof(cache_inv); + cache_inv.argsz = argsz; + cache_inv.info = *info; + cache_inv.flags = 0x0; + + rcu_read_lock(); + if (ioctl(container->fd, VFIO_IOMMU_CACHE_INVALIDATE, &cache_inv) != 0) { + error_report("vfio_pci_device_flush_pasid_iotlb:" + " cache invalidation failed, contanier: %p", container); + } + rcu_read_unlock(); +} + static PCIPASIDOps vfio_pci_pasid_ops = { .alloc_pasid = vfio_pci_device_request_pasid_alloc, .free_pasid = vfio_pci_device_request_pasid_free, .bind_gpasid = vfio_pci_device_bind_gpasid, .unbind_gpasid = vfio_pci_device_unbind_gpasid, + .flush_pasid_iotlb = vfio_pci_device_flush_pasid_iotlb, }; static void vfio_realize(PCIDevice *pdev, Error **errp) -- 2.7.4