From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756346Ab2GEMjp (ORCPT ); Thu, 5 Jul 2012 08:39:45 -0400 Received: from ch1ehsobe004.messaging.microsoft.com ([216.32.181.184]:31556 "EHLO ch1outboundpool.messaging.microsoft.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932554Ab2GEMhE (ORCPT ); Thu, 5 Jul 2012 08:37:04 -0400 X-Forefront-Antispam-Report: CIP:163.181.249.108;KIP:(null);UIP:(null);IPV:NLI;H:ausb3twp01.amd.com;RD:none;EFVD:NLI X-SpamScore: 0 X-BigFish: VPS0(zzzz1202hzz8275bhz2dh668h839hd24he5bhf0ah107ah) X-WSS-ID: 0M6OTPO-01-2V7-02 X-M-MSG: From: Joerg Roedel To: CC: , Joerg Roedel Subject: [PATCH 16/28] iommu/amd: Block all interrupts by default with irq-remapping enabled Date: Thu, 5 Jul 2012 14:36:36 +0200 Message-ID: <1341491808-23083-17-git-send-email-joerg.roedel@amd.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1341491808-23083-1-git-send-email-joerg.roedel@amd.com> References: <1341491808-23083-1-git-send-email-joerg.roedel@amd.com> MIME-Version: 1.0 Content-Type: text/plain X-OriginatorOrg: amd.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org When IRQ remapping is enabled all interrupts must be blocked by default to be secure. Single interrupts are enabled on demand later. Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index ed4e690..e663f1d 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1390,6 +1390,9 @@ static void init_device_table(void) for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) { set_dev_entry_bit(devid, DEV_ENTRY_VALID); set_dev_entry_bit(devid, DEV_ENTRY_TRANSLATION); + + if (amd_iommu_irq_remap) + set_dev_entry_bit(devid, DEV_ENTRY_IRQ_TBL_EN); } } -- 1.7.9.5