From patchwork Fri Jul 5 11:01:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yi Liu X-Patchwork-Id: 11033681 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 175E5112C for ; Sat, 6 Jul 2019 11:19:33 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 08A75287F9 for ; Sat, 6 Jul 2019 11:19:33 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F0D7E289E5; Sat, 6 Jul 2019 11:19:32 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.6 required=2.0 tests=BAYES_00,DATE_IN_PAST_24_48, MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8556E287F9 for ; Sat, 6 Jul 2019 11:19:32 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726911AbfGFLTb (ORCPT ); Sat, 6 Jul 2019 07:19:31 -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 S1726607AbfGFLTb (ORCPT ); Sat, 6 Jul 2019 07:19:31 -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 04:19:31 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,458,1557212400"; d="scan'208";a="363355046" Received: from yiliu-dev.bj.intel.com ([10.238.156.139]) by fmsmga005.fm.intel.com with ESMTP; 06 Jul 2019 04:19:28 -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 14/18] hw/pci: add flush_pasid_iotlb() in PCIPASIDOps Date: Fri, 5 Jul 2019 19:01:47 +0800 Message-Id: <1562324511-2910-15-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 X-Virus-Scanned: ClamAV using ClamSMTP This patch adds flush_pasid_iotlb() in PCIPASIDOps for passing guest PASID-based iotlb flush operation to host via vfio interface. 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/pci/pci.c | 15 +++++++++++++++ include/hw/pci/pci.h | 4 ++++ 2 files changed, 19 insertions(+) diff --git a/hw/pci/pci.c b/hw/pci/pci.c index 2229229..cf92bed 100644 --- a/hw/pci/pci.c +++ b/hw/pci/pci.c @@ -2706,6 +2706,21 @@ void pci_device_unbind_gpasid(PCIBus *bus, int32_t devfn, } } +void pci_device_flush_pasid_iotlb(PCIBus *bus, int32_t devfn, + struct iommu_cache_invalidate_info *info) +{ + PCIDevice *dev; + + if (!bus) { + return; + } + + dev = bus->devices[devfn]; + if (dev && dev->pasid_ops) { + dev->pasid_ops->flush_pasid_iotlb(bus, devfn, info); + } +} + static void pci_dev_get_w64(PCIBus *b, PCIDevice *dev, void *opaque) { Range *range = opaque; diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index 8d849e6..77e6bb1 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -272,6 +272,8 @@ struct PCIPASIDOps { struct gpasid_bind_data *g_bind_data); void (*unbind_gpasid)(PCIBus *bus, int32_t devfn, struct gpasid_bind_data *g_bind_data); + void (*flush_pasid_iotlb)(PCIBus *bus, int32_t devfn, + struct iommu_cache_invalidate_info *info); }; struct PCIDevice { @@ -506,6 +508,8 @@ void pci_device_bind_gpasid(PCIBus *bus, int32_t devfn, struct gpasid_bind_data *g_bind_data); void pci_device_unbind_gpasid(PCIBus *bus, int32_t devfn, struct gpasid_bind_data *g_bind_data); +void pci_device_flush_pasid_iotlb(PCIBus *bus, int32_t devfn, + struct iommu_cache_invalidate_info *info); static inline void pci_set_byte(uint8_t *config, uint8_t val)