From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Auger 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> References: <1439212864-12954-1-git-send-email-eric.auger@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: pbonzini@redhat.com, linux-kernel@vger.kernel.org, patches@linaro.org 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 Return-path: In-Reply-To: <1439212864-12954-1-git-send-email-eric.auger@linaro.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org 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) { } -- 1.9.1