From mboxrd@z Thu Jan 1 00:00:00 1970 From: Antonios Motakis Subject: [RFC PATCH v6 03/20] iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver Date: Thu, 5 Jun 2014 19:03:11 +0200 Message-ID: <1401987808-23596-4-git-send-email-a.motakis@virtualopensystems.com> References: <1401987808-23596-1-git-send-email-a.motakis@virtualopensystems.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1401987808-23596-1-git-send-email-a.motakis-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Errors-To: iommu-bounces-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org To: alex.williamson-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org, kvmarm-FPEHb7Xf0XXUo1n7N8X6UoWGPAHP3yOg@public.gmane.org, iommu-cunTk1MwBs9QetFLy7KEm3xJsTq8ys+cHZ5vskTnxNA@public.gmane.org Cc: kvm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, eric.auger-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, open list , will.deacon-5wv7dgnIgG8@public.gmane.org, a.rigo-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org, stuart.yoder-KZfg59tc24xl57MIdRCFDg@public.gmane.org, "moderated list:ARM SMMU DRIVER" , Antonios Motakis , tech-lrHrjnjw1UfHK3s98zE1ajGjJy/sRE9J@public.gmane.org, christoffer.dall-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org List-Id: iommu@lists.linux-foundation.org The ARM SMMU supports the IOMMU_NOEXEC protection flag. Add the corresponding IOMMU capability. Signed-off-by: Antonios Motakis --- drivers/iommu/arm-smmu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index d5a2200..15ab2af 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1544,6 +1544,8 @@ static int arm_smmu_domain_has_cap(struct iommu_domain *domain, if (smmu_domain->root_cfg.smmu->features & ARM_SMMU_FEAT_COHERENT_WALK) caps |= IOMMU_CAP_CACHE_COHERENCY; + caps |= IOMMU_CAP_NOEXEC; + return !!(cap & caps); } -- 1.8.3.2 From mboxrd@z Thu Jan 1 00:00:00 1970 From: a.motakis@virtualopensystems.com (Antonios Motakis) Date: Thu, 5 Jun 2014 19:03:11 +0200 Subject: [RFC PATCH v6 03/20] iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver In-Reply-To: <1401987808-23596-1-git-send-email-a.motakis@virtualopensystems.com> References: <1401987808-23596-1-git-send-email-a.motakis@virtualopensystems.com> Message-ID: <1401987808-23596-4-git-send-email-a.motakis@virtualopensystems.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org The ARM SMMU supports the IOMMU_NOEXEC protection flag. Add the corresponding IOMMU capability. Signed-off-by: Antonios Motakis --- drivers/iommu/arm-smmu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index d5a2200..15ab2af 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1544,6 +1544,8 @@ static int arm_smmu_domain_has_cap(struct iommu_domain *domain, if (smmu_domain->root_cfg.smmu->features & ARM_SMMU_FEAT_COHERENT_WALK) caps |= IOMMU_CAP_CACHE_COHERENCY; + caps |= IOMMU_CAP_NOEXEC; + return !!(cap & caps); } -- 1.8.3.2 From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753072AbaFERK5 (ORCPT ); Thu, 5 Jun 2014 13:10:57 -0400 Received: from mail-we0-f177.google.com ([74.125.82.177]:43381 "EHLO mail-we0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752055AbaFERET (ORCPT ); Thu, 5 Jun 2014 13:04:19 -0400 From: Antonios Motakis To: alex.williamson@redhat.com, kvmarm@lists.cs.columbia.edu, iommu@lists.linux-foundation.org Cc: tech@virtualopensystems.com, a.rigo@virtualopensystems.com, kvm@vger.kernel.org, christoffer.dall@linaro.org, will.deacon@arm.com, kim.phillips@freescale.com, stuart.yoder@freescale.com, eric.auger@linaro.org, Antonios Motakis , Joerg Roedel , linux-arm-kernel@lists.infradead.org (moderated list:ARM SMMU DRIVER), linux-kernel@vger.kernel.org (open list) Subject: [RFC PATCH v6 03/20] iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver Date: Thu, 5 Jun 2014 19:03:11 +0200 Message-Id: <1401987808-23596-4-git-send-email-a.motakis@virtualopensystems.com> X-Mailer: git-send-email 1.8.3.2 In-Reply-To: <1401987808-23596-1-git-send-email-a.motakis@virtualopensystems.com> References: <1401987808-23596-1-git-send-email-a.motakis@virtualopensystems.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org The ARM SMMU supports the IOMMU_NOEXEC protection flag. Add the corresponding IOMMU capability. Signed-off-by: Antonios Motakis --- drivers/iommu/arm-smmu.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm-smmu.c b/drivers/iommu/arm-smmu.c index d5a2200..15ab2af 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1544,6 +1544,8 @@ static int arm_smmu_domain_has_cap(struct iommu_domain *domain, if (smmu_domain->root_cfg.smmu->features & ARM_SMMU_FEAT_COHERENT_WALK) caps |= IOMMU_CAP_CACHE_COHERENCY; + caps |= IOMMU_CAP_NOEXEC; + return !!(cap & caps); } -- 1.8.3.2