From patchwork Tue Jan 26 07:42:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cindy Lu X-Patchwork-Id: 1431568 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) 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; dkim=pass (1024-bit key; unprotected) header.d=redhat.com header.i=@redhat.com header.a=rsa-sha256 header.s=mimecast20190719 header.b=OVIgQqfA; dkim-atps=neutral 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 4DPzNw32xmz9sSs for ; Tue, 26 Jan 2021 18:48:00 +1100 (AEDT) Received: from localhost ([::1]:59926 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1l4J4w-0002kl-9v for incoming@patchwork.ozlabs.org; Tue, 26 Jan 2021 02:47:58 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]:54158) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1l4J0R-0007EB-EH for qemu-devel@nongnu.org; Tue, 26 Jan 2021 02:43:19 -0500 Received: from us-smtp-delivery-124.mimecast.com ([63.128.21.124]:51049) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_CBC_SHA1:256) (Exim 4.90_1) (envelope-from ) id 1l4J0P-0001jG-SR for qemu-devel@nongnu.org; Tue, 26 Jan 2021 02:43:19 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1611646997; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=ua2MJPKyhckrhznbF0TFlcdA8jGgaynNIN8wY0tzrgw=; b=OVIgQqfA3fNc7G3lxmGhymGH+tizhSfA4JoArn5YMDXVvGnEX8Y/UHfIRprFjNzXBClxma Qji2vSXvlnS5bEw8FCOl31U7dz9pAGGcMcQtyiWKSdQNNWGEfFPuIuPc2L7kBdvbp2XDKy VlREaWvGHJI9D4/tKlCfuoWMVuB/Gog= Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-232-a5wUNJvBPruuUQ2a5FjJUg-1; Tue, 26 Jan 2021 02:43:15 -0500 X-MC-Unique: a5wUNJvBPruuUQ2a5FjJUg-1 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 mimecast-mx01.redhat.com (Postfix) with ESMTPS id D32C010054FF for ; Tue, 26 Jan 2021 07:43:14 +0000 (UTC) Received: from laptop.redhat.com (ovpn-12-115.pek2.redhat.com [10.72.12.115]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4FFAD5D74E; Tue, 26 Jan 2021 07:43:13 +0000 (UTC) From: Cindy Lu To: mst@redhat.com, jasowang@redhat.com, qemu-devel@nongnu.org Subject: [PATCH v3 4/5] virtio-mmio: add support for configure interrupt Date: Tue, 26 Jan 2021 15:42:53 +0800 Message-Id: <20210126074254.3225-5-lulu@redhat.com> In-Reply-To: <20210126074254.3225-1-lulu@redhat.com> References: <20210126074254.3225-1-lulu@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.15 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=CUSA124A263 smtp.mailfrom=lulu@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Received-SPF: pass client-ip=63.128.21.124; envelope-from=lulu@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -30 X-Spam_score: -3.1 X-Spam_bar: --- X-Spam_report: (-3.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.255, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_LOW=-0.7, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action 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: lulu@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" add configure interrupt support for virtio-mmio bus. This interrupt will working while backend is vhost-vdpa Signed-off-by: Cindy Lu --- hw/virtio/virtio-mmio.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/hw/virtio/virtio-mmio.c b/hw/virtio/virtio-mmio.c index e1b5c3b81e..d580f1ea9a 100644 --- a/hw/virtio/virtio-mmio.c +++ b/hw/virtio/virtio-mmio.c @@ -666,6 +666,21 @@ assign_error: return r; } +static int virtio_mmio_set_config_notifier(DeviceState *d, bool assign) +{ + VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d); + VirtIODevice *vdev = virtio_bus_get_device(&proxy->bus); + EventNotifier *notifier = virtio_get_config_notifier(vdev); + int r = 0; + if (assign) { + r = event_notifier_init(notifier, 0); + virtio_set_config_notifier_fd_handler(vdev, true, false); + } else { + virtio_set_config_notifier_fd_handler(vdev, false, false); + event_notifier_cleanup(notifier); + } + return r; +} static void virtio_mmio_pre_plugged(DeviceState *d, Error **errp) { VirtIOMMIOProxy *proxy = VIRTIO_MMIO(d); @@ -780,6 +795,7 @@ static void virtio_mmio_bus_class_init(ObjectClass *klass, void *data) k->ioeventfd_assign = virtio_mmio_ioeventfd_assign; k->pre_plugged = virtio_mmio_pre_plugged; k->has_variable_vring_alignment = true; + k->set_config_notifiers = virtio_mmio_set_config_notifier; bus_class->max_dev = 1; bus_class->get_dev_path = virtio_mmio_bus_get_dev_path; }