From patchwork Mon Aug 10 13:20:58 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Eric Auger X-Patchwork-Id: 6984031 Return-Path: X-Original-To: patchwork-kvm@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id C2C9A9F344 for ; Mon, 10 Aug 2015 13:25:12 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 0213D204A2 for ; Mon, 10 Aug 2015 13:25:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 13C962070A for ; Mon, 10 Aug 2015 13:25:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932108AbbHJNZH (ORCPT ); Mon, 10 Aug 2015 09:25:07 -0400 Received: from mail-wi0-f170.google.com ([209.85.212.170]:36660 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752581AbbHJNV7 (ORCPT ); Mon, 10 Aug 2015 09:21:59 -0400 Received: by wicja10 with SMTP id ja10so36946824wic.1 for ; Mon, 10 Aug 2015 06:21:58 -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=LWPjxtg96frESmXioLbRdGYu9TmTxyKA03NkBYLx7rQ=; b=dA5bfpvCa9//6O/A1f66ZYiyKlKzFeysQcgmCtmEu4IxGsXEr2eZwBXvW35w3N/RnT 0rU+Fv/nJITBEb/FoNXH9///x5L1sJ6vbr7JMJ2pZ7FDoBlDOzMuBcJzBQSLoE0dNCsb X5ElZHjfXqc3odTJPR3f1uZgQnQZD/BO8aHSKVPfn4NVB9zOkmitk/wTcUoHLjdlRIdC PYh7fFe/LuJ4gTl2bBhLlGrUAlzhLtuheXboC+HWJtVLCSjvDKup0oPz4MgBrKMKGIcx Kbz796XHf05zavE+EhzrPymlqKSrbnh9xTplY/4ih2nPPEdIyroC9H3/w9Z+5rAzL0Zy IFZg== X-Gm-Message-State: ALoCoQnUsUPadXrF6EcOGwVZ7QMphzDw8kVcMUelU6JxSI/DG1Hm4OfUe298/Q1TFZgObZRaxjlj X-Received: by 10.194.238.168 with SMTP id vl8mr45652792wjc.128.1439212917952; Mon, 10 Aug 2015 06:21:57 -0700 (PDT) Received: from gnx2579.home (LCaen-156-56-7-90.w80-11.abo.wanadoo.fr. [80.11.198.90]) by smtp.gmail.com with ESMTPSA id fq15sm29517024wjc.12.2015.08.10.06.21.56 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 10 Aug 2015 06:21:57 -0700 (PDT) From: Eric Auger To: eric.auger@st.com, eric.auger@linaro.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, christoffer.dall@linaro.org, marc.zyngier@arm.com, alex.williamson@redhat.com, feng.wu@intel.com Cc: linux-kernel@vger.kernel.org, patches@linaro.org, pbonzini@redhat.com Subject: [PATCH v3 04/10] VFIO: platform: add vfio_platform_set_automasked Date: Mon, 10 Aug 2015 15:20:58 +0200 Message-Id: <1439212864-12954-5-git-send-email-eric.auger@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1439212864-12954-1-git-send-email-eric.auger@linaro.org> References: <1439212864-12954-1-git-send-email-eric.auger@linaro.org> Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org X-Spam-Status: No, score=-6.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=ham 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 This function makes possible to change the automasked mode. Signed-off-by: Eric Auger --- v1 -> v2: - set forwarded flag --- drivers/vfio/platform/vfio_platform_irq.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/vfio/platform/vfio_platform_irq.c b/drivers/vfio/platform/vfio_platform_irq.c index b31b1f0..a285384 100644 --- a/drivers/vfio/platform/vfio_platform_irq.c +++ b/drivers/vfio/platform/vfio_platform_irq.c @@ -186,6 +186,25 @@ static irqreturn_t vfio_handler(int irq, void *dev_id) return ret; } +static int vfio_platform_set_automasked(struct vfio_platform_irq *irq, + bool automasked) +{ + unsigned long flags; + + spin_lock_irqsave(&irq->lock, flags); + if (automasked) { + irq->forwarded = true; + irq->flags |= VFIO_IRQ_INFO_AUTOMASKED; + irq->handler = vfio_automasked_irq_handler; + } else { + irq->forwarded = false; + irq->flags &= ~VFIO_IRQ_INFO_AUTOMASKED; + irq->handler = vfio_irq_handler; + } + spin_unlock_irqrestore(&irq->lock, flags); + return 0; +} + static void vfio_platform_irq_bypass_stop(struct irq_bypass_producer *prod) { }