From patchwork Mon Oct 13 13:06:18 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Antonios Motakis X-Patchwork-Id: 5075761 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork2.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.19.201]) by patchwork2.web.kernel.org (Postfix) with ESMTP id 77E77C11AC for ; Mon, 13 Oct 2014 13:09:55 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id B35FE201F7 for ; Mon, 13 Oct 2014 13:09:54 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.9]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id DDCB0201F5 for ; Mon, 13 Oct 2014 13:09:53 +0000 (UTC) Received: from localhost ([127.0.0.1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.80.1 #2 (Red Hat Linux)) id 1XdfLV-0002SX-7W; Mon, 13 Oct 2014 13:07:29 +0000 Received: from mail-wi0-f176.google.com ([209.85.212.176]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1XdfLL-0002Ms-Ow for linux-arm-kernel@lists.infradead.org; Mon, 13 Oct 2014 13:07:20 +0000 Received: by mail-wi0-f176.google.com with SMTP id hi2so7342114wib.9 for ; Mon, 13 Oct 2014 06:06:57 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=wg4PEuoJgV9Ryj/y3Udh+CD7qyr1te93HtHNwegQeqU=; b=U3qeeHcNIjg2qh0VtWX8qKayJsXA4cIbHt1/cQB4+ESaMiEoLa3waNSS1XQX8BoXff kUFr9oOhv1fSdKkMqA7rhY9LEYiLUlqZPgYWqhxdpxL0eXLjVuexCSf4n62Q2t1+R1wC NtiREJLQSDYEBSe1eM7PuLf+lu5Iu6VS1AVB9wKgzqVzr3i8+/U+Bmow4NLtHJimbWBy cEJJP533eUHv9mgJYFtKZCdiY1iMW3qu/A5AOB/WwdRkkggh62JTO3t7QBmV9lsZagbJ R2q9G6P69vpjXmcOVnfDagatEbx48Uoga1TjM6rgiN1PGHBFaotkl4D76InQsUDkBzLh J1Kg== X-Gm-Message-State: ALoCoQnBkl0JSEjmgOTbaCEQLHDwNcrEWZ74oCWsW9vlZ48E9AAx+AVetlXUVxJ8miprfDHyIZwm X-Received: by 10.194.189.115 with SMTP id gh19mr2011897wjc.119.1413205617706; Mon, 13 Oct 2014 06:06:57 -0700 (PDT) Received: from localhost.localdomain (home.tvelocity.eu. [82.67.68.96]) by mx.google.com with ESMTPSA id ky3sm16584837wjb.39.2014.10.13.06.06.55 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 13 Oct 2014 06:06:56 -0700 (PDT) From: Antonios Motakis To: will.deacon@arm.com, kvmarm@lists.cs.columbia.edu, iommu@lists.linux-foundation.org, jroedel@suse.de Subject: [PATCH 3/3] iommu/arm-smmu: add IOMMU_CAP_NOEXEC to the ARM SMMU driver Date: Mon, 13 Oct 2014 15:06:18 +0200 Message-Id: <1413205579-6124-4-git-send-email-a.motakis@virtualopensystems.com> X-Mailer: git-send-email 2.1.1 In-Reply-To: <1413205579-6124-1-git-send-email-a.motakis@virtualopensystems.com> References: <1413205579-6124-1-git-send-email-a.motakis@virtualopensystems.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20141013_060720_016548_00B8CCA2 X-CRM114-Status: GOOD ( 10.17 ) X-Spam-Score: -0.7 (/) Cc: kim.phillips@freescale.com, eric.auger@linaro.org, marc.zyngier@arm.com, Joerg Roedel , open list , alex.williamson@redhat.com, "moderated list:ARM SMMU DRIVER" , Antonios Motakis , tech@virtualopensystems.com, christoffer.dall@linaro.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, T_RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP 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 566c176..c8fc02f 100644 --- a/drivers/iommu/arm-smmu.c +++ b/drivers/iommu/arm-smmu.c @@ -1569,6 +1569,8 @@ static bool arm_smmu_capable(enum iommu_cap cap) return true; case IOMMU_CAP_INTR_REMAP: return true; /* MSIs are just memory writes */ + case IOMMU_CAP_NOEXEC: + return true; default: return false; }