From patchwork Mon Jul 1 11:17:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cornelia Huck X-Patchwork-Id: 1125226 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=) Authentication-Results: ozlabs.org; dmarc=fail (p=none dis=none) header.from=redhat.com Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 45clNw63xkz9sPF for ; Mon, 1 Jul 2019 21:23:28 +1000 (AEST) Received: from localhost ([::1]:57290 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hhuP8-0002if-K2 for incoming@patchwork.ozlabs.org; Mon, 01 Jul 2019 07:23:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:43445) by lists.gnu.org with esmtp (Exim 4.86_2) (envelope-from ) id 1hhuK3-0006XI-IZ for qemu-devel@nongnu.org; Mon, 01 Jul 2019 07:18:14 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hhuK1-0000op-3f for qemu-devel@nongnu.org; Mon, 01 Jul 2019 07:18:10 -0400 Received: from mx1.redhat.com ([209.132.183.28]:57514) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1hhuJw-0000Ph-Th; Mon, 01 Jul 2019 07:18:05 -0400 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 2987C2F8BCD; Mon, 1 Jul 2019 11:17:48 +0000 (UTC) Received: from localhost (ovpn-117-220.ams2.redhat.com [10.36.117.220]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 741A718351; Mon, 1 Jul 2019 11:17:45 +0000 (UTC) From: Cornelia Huck To: Peter Maydell Date: Mon, 1 Jul 2019 13:17:20 +0200 Message-Id: <20190701111722.32068-5-cohuck@redhat.com> In-Reply-To: <20190701111722.32068-1-cohuck@redhat.com> References: <20190701111722.32068-1-cohuck@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.38]); Mon, 01 Jul 2019 11:17:48 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PULL 4/6] vfio-ccw: use vfio_set_irq_signaling X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eric Farman , Eric Auger , qemu-s390x@nongnu.org, Cornelia Huck , qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Use the new helper. Reviewed-by: Eric Auger Reviewed-by: Eric Farman Message-Id: <20190617101036.4087-1-cohuck@redhat.com> Signed-off-by: Cornelia Huck --- hw/vfio/ccw.c | 51 +++++++++++++-------------------------------------- 1 file changed, 13 insertions(+), 38 deletions(-) diff --git a/hw/vfio/ccw.c b/hw/vfio/ccw.c index 03a2becb3ec9..a18bbd33b055 100644 --- a/hw/vfio/ccw.c +++ b/hw/vfio/ccw.c @@ -198,9 +198,8 @@ static void vfio_ccw_register_io_notifier(VFIOCCWDevice *vcdev, Error **errp) { VFIODevice *vdev = &vcdev->vdev; struct vfio_irq_info *irq_info; - struct vfio_irq_set *irq_set; size_t argsz; - int32_t *pfd; + int fd; if (vdev->num_irqs < VFIO_CCW_IO_IRQ_INDEX + 1) { error_setg(errp, "vfio: unexpected number of io irqs %u", @@ -224,56 +223,32 @@ static void vfio_ccw_register_io_notifier(VFIOCCWDevice *vcdev, Error **errp) goto out_free_info; } - argsz = sizeof(*irq_set) + sizeof(*pfd); - irq_set = g_malloc0(argsz); - irq_set->argsz = argsz; - irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | - VFIO_IRQ_SET_ACTION_TRIGGER; - irq_set->index = VFIO_CCW_IO_IRQ_INDEX; - irq_set->start = 0; - irq_set->count = 1; - pfd = (int32_t *) &irq_set->data; - - *pfd = event_notifier_get_fd(&vcdev->io_notifier); - qemu_set_fd_handler(*pfd, vfio_ccw_io_notifier_handler, NULL, vcdev); - if (ioctl(vdev->fd, VFIO_DEVICE_SET_IRQS, irq_set)) { - error_setg(errp, "vfio: Failed to set up io notification"); - qemu_set_fd_handler(*pfd, NULL, NULL, vcdev); + fd = event_notifier_get_fd(&vcdev->io_notifier); + qemu_set_fd_handler(fd, vfio_ccw_io_notifier_handler, NULL, vcdev); + + if (vfio_set_irq_signaling(vdev, VFIO_CCW_IO_IRQ_INDEX, 0, + VFIO_IRQ_SET_ACTION_TRIGGER, fd, errp)) { + qemu_set_fd_handler(fd, NULL, NULL, vcdev); event_notifier_cleanup(&vcdev->io_notifier); } - g_free(irq_set); - out_free_info: g_free(irq_info); } static void vfio_ccw_unregister_io_notifier(VFIOCCWDevice *vcdev) { - struct vfio_irq_set *irq_set; - size_t argsz; - int32_t *pfd; - - argsz = sizeof(*irq_set) + sizeof(*pfd); - irq_set = g_malloc0(argsz); - irq_set->argsz = argsz; - irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD | - VFIO_IRQ_SET_ACTION_TRIGGER; - irq_set->index = VFIO_CCW_IO_IRQ_INDEX; - irq_set->start = 0; - irq_set->count = 1; - pfd = (int32_t *) &irq_set->data; - *pfd = -1; - - if (ioctl(vcdev->vdev.fd, VFIO_DEVICE_SET_IRQS, irq_set)) { - error_report("vfio: Failed to de-assign device io fd: %m"); + Error *err = NULL; + + vfio_set_irq_signaling(&vcdev->vdev, VFIO_CCW_IO_IRQ_INDEX, 0, + VFIO_IRQ_SET_ACTION_TRIGGER, -1, &err); + if (err) { + error_reportf_err(err, VFIO_MSG_PREFIX, vcdev->vdev.name); } qemu_set_fd_handler(event_notifier_get_fd(&vcdev->io_notifier), NULL, NULL, vcdev); event_notifier_cleanup(&vcdev->io_notifier); - - g_free(irq_set); } static void vfio_ccw_get_region(VFIOCCWDevice *vcdev, Error **errp)