From patchwork Wed Jul 19 09:33:56 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 9850907 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id 795A5602C8 for ; Wed, 19 Jul 2017 09:36:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 56B492818E for ; Wed, 19 Jul 2017 09:36:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4B6F728630; Wed, 19 Jul 2017 09:36:22 +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=-7.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, RCVD_IN_DNSWL_HI autolearn=unavailable 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 E45E92818E for ; Wed, 19 Jul 2017 09:36:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753564AbdGSJfM (ORCPT ); Wed, 19 Jul 2017 05:35:12 -0400 Received: from mail-wr0-f170.google.com ([209.85.128.170]:32813 "EHLO mail-wr0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753365AbdGSJfG (ORCPT ); Wed, 19 Jul 2017 05:35:06 -0400 Received: by mail-wr0-f170.google.com with SMTP id v105so26123143wrb.0 for ; Wed, 19 Jul 2017 02:35:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=broadcom.com; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=uzKbWPYLjvspPt/KkSLAfa7gPWV1Nto2baZAIXDS4No=; b=aEcf5HSxKpln0VTujGjhdx2n5OOoAK+NqVBEBguTEeQ7HP/6b+yaAFjmlDeVIo03nx cvzjgbAE96vD4/9AklNFrYRrwUOh5Rk+c3i8BoUg+f9xsHWToq5wDWbspHaB97wbRIpo ivlyNODlGsUXV7QjoIkBPp2eiFtf5gr4Y06vM= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=uzKbWPYLjvspPt/KkSLAfa7gPWV1Nto2baZAIXDS4No=; b=GJcApmdJlvXe2+nbx91a8m0frTQdVUnTmlMl92fvJhXqn25MFO1nnNqBvRMXxtKCJm LATE0HgWcz+RSaXGjjk6MoynILwIsZR0scODKyBLMR3lHQCzCRnvfSh4Izn9GzWyfd8O bUbgnffKxo+La2R0GxwhnjZvVJeQ3rOY21Q3QhfpqWCmDwvWxP+wIxtRTIBvpB/uD0mQ E5VcTY5K6bL/3L72cnWZqYhoSkQiKpTlT5oK/nfS5KVo6VWmgY4J4+eSPbJTN9y0dnhP S8Kz4euw+abPxYeB0qdkQPLG5OrGiwO8VEnlxkJAwRCxc4ausewQJUWD3xwTY5+T833U 5/lw== X-Gm-Message-State: AIVw111aK0YMJpsF0Us1ifaRUxlHvi4YSasotpg5RHG+7caeLrltzO44 hpwag08WOtZJudq0 X-Received: by 10.223.142.164 with SMTP id q33mr3476346wrb.13.1500456905470; Wed, 19 Jul 2017 02:35:05 -0700 (PDT) Received: from anup-HP-Compaq-8100-Elite-CMT-PC.dhcp.avagotech.net ([192.19.237.250]) by smtp.gmail.com with ESMTPSA id y12sm8227473wrb.39.2017.07.19.02.34.59 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Wed, 19 Jul 2017 02:35:04 -0700 (PDT) From: Anup Patel To: Will Deacon , Robin Murphy , Joerg Roedel , Baptiste Reynal , Alex Williamson Cc: Scott Branden , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, iommu@lists.linux-foundation.org, kvm@vger.kernel.org, bcm-kernel-feedback-list@broadcom.com, Anup Patel Subject: [PATCH 3/5] iommu/arm-smmu-v3: add IOMMU_CAP_BYPASS to the ARM SMMUv3 driver Date: Wed, 19 Jul 2017 15:03:56 +0530 Message-Id: <1500456838-18405-4-git-send-email-anup.patel@broadcom.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1500456838-18405-1-git-send-email-anup.patel@broadcom.com> References: <1500456838-18405-1-git-send-email-anup.patel@broadcom.com> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP The ARM SMMUv3 support bypassing transactions for which domain is not configured. The patch adds corresponding IOMMU capability to advertise this fact. Signed-off-by: Anup Patel --- drivers/iommu/arm-smmu-v3.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/iommu/arm-smmu-v3.c b/drivers/iommu/arm-smmu-v3.c index 568c400..a6c7f66 100644 --- a/drivers/iommu/arm-smmu-v3.c +++ b/drivers/iommu/arm-smmu-v3.c @@ -1423,6 +1423,8 @@ static bool arm_smmu_capable(enum iommu_cap cap) return true; case IOMMU_CAP_NOEXEC: return true; + case IOMMU_CAP_BYPASS: + return true; default: return false; }