From patchwork Thu Jul 23 21:47:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: "Cabiddu, Giovanni" X-Patchwork-Id: 11681687 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 6DE2D13B1 for ; Thu, 23 Jul 2020 21:47:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 543DE2080D for ; Thu, 23 Jul 2020 21:47:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728060AbgGWVrl (ORCPT ); Thu, 23 Jul 2020 17:47:41 -0400 Received: from mga18.intel.com ([134.134.136.126]:8400 "EHLO mga18.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728038AbgGWVrk (ORCPT ); Thu, 23 Jul 2020 17:47:40 -0400 IronPort-SDR: /Alj6+46OaYHm56o2rTjUftE3mOyKniyBjotZjJmYYAlDd8Cu6vZp2/CZnOGvAuanv3IC4VWlF tSmpHtOzaMsg== X-IronPort-AV: E=McAfee;i="6000,8403,9691"; a="138125250" X-IronPort-AV: E=Sophos;i="5.75,388,1589266800"; d="scan'208";a="138125250" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga106.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 23 Jul 2020 14:47:39 -0700 IronPort-SDR: UB+bq+Kxrz6bis857G9a12Q3w2mUQ9vzTdc7e5eU5lwsD2t0cBvxbA80Fvq5bAOWjnAk9FrjB6 6Gx694ouZCDQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.75,388,1589266800"; d="scan'208";a="311184003" Received: from silpixa00400314.ir.intel.com (HELO silpixa00400314.ger.corp.intel.com) ([10.237.222.51]) by fmsmga004.fm.intel.com with ESMTP; 23 Jul 2020 14:47:33 -0700 From: Giovanni Cabiddu To: alex.williamson@redhat.com, herbert@gondor.apana.org.au Cc: cohuck@redhat.com, nhorman@redhat.com, vdronov@redhat.com, bhelgaas@google.com, mark.a.chambers@intel.com, gordon.mcfadden@intel.com, ahsan.atta@intel.com, fiona.trahe@intel.com, qat-linux@intel.com, kvm@vger.kernel.org, linux-crypto@vger.kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Giovanni Cabiddu Subject: [PATCH v3 3/5] vfio/pci: Add QAT devices to denylist Date: Thu, 23 Jul 2020 22:47:03 +0100 Message-Id: <20200723214705.5399-4-giovanni.cabiddu@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20200723214705.5399-1-giovanni.cabiddu@intel.com> References: <20200723214705.5399-1-giovanni.cabiddu@intel.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org The current generation of Intel® QuickAssist Technology devices are not designed to run in an untrusted environment because of the following issues reported in the document "Intel® QuickAssist Technology (Intel® QAT) Software for Linux" (document number 336211-014): QATE-39220 - GEN - Intel® QAT API submissions with bad addresses that trigger DMA to invalid or unmapped addresses can cause a platform hang QATE-7495 - GEN - An incorrectly formatted request to Intel® QAT can hang the entire Intel® QAT Endpoint The document is downloadable from https://01.org/intel-quickassist-technology at the following link: https://01.org/sites/default/files/downloads/336211-014-qatforlinux-releasenotes-hwv1.7_0.pdf This patch adds the following QAT devices to the denylist: DH895XCC, C3XXX and C62X. Signed-off-by: Giovanni Cabiddu --- drivers/vfio/pci/vfio_pci.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/vfio/pci/vfio_pci.c b/drivers/vfio/pci/vfio_pci.c index 673f53c4798e..d80673487994 100644 --- a/drivers/vfio/pci/vfio_pci.c +++ b/drivers/vfio/pci/vfio_pci.c @@ -75,6 +75,21 @@ static inline bool vfio_vga_disabled(void) static bool vfio_pci_dev_in_denylist(struct pci_dev *pdev) { + switch (pdev->vendor) { + case PCI_VENDOR_ID_INTEL: + switch (pdev->device) { + case PCI_DEVICE_ID_INTEL_QAT_C3XXX: + case PCI_DEVICE_ID_INTEL_QAT_C3XXX_VF: + case PCI_DEVICE_ID_INTEL_QAT_C62X: + case PCI_DEVICE_ID_INTEL_QAT_C62X_VF: + case PCI_DEVICE_ID_INTEL_QAT_DH895XCC: + case PCI_DEVICE_ID_INTEL_QAT_DH895XCC_VF: + return true; + default: + return false; + } + } + return false; }