From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C1551C433EF for ; Fri, 29 Oct 2021 18:55:05 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 62EBD60F9B for ; Fri, 29 Oct 2021 18:55:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 62EBD60F9B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=redhat.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=nongnu.org Received: from localhost ([::1]:36014 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1mgX1s-0001hF-6q for qemu-devel@archiver.kernel.org; Fri, 29 Oct 2021 14:55:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:46180) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgWoO-00070X-4f for qemu-devel@nongnu.org; Fri, 29 Oct 2021 14:41:08 -0400 Received: from us-smtp-delivery-124.mimecast.com ([216.205.24.124]:34509) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1mgWoI-0001Gq-Vy for qemu-devel@nongnu.org; Fri, 29 Oct 2021 14:41:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1635532862; 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=xJ71lrFz0P4oP02IXNJus6aWSe+jXY8leG8qGrZiugA=; b=bbm9DkY7kOmsndxErLWPrZdjq4HpTQ9FOVGzMfY/JyWQzp+Jzh7h6ccXeLMqQNIOPPxlHb qF5VN6GgibaXG/FV9i2vYl/4ir3QY1TOOSX4Cm23n7pbU/7HyhKC7ImD+lk2EAsUXudWUh DtGmLNqUvOHYDpHtESEe/Fj93HvOVYg= 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-353-WzI2n0QvMXGYri83154kng-1; Fri, 29 Oct 2021 14:40:59 -0400 X-MC-Unique: WzI2n0QvMXGYri83154kng-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 9906A8030A0; Fri, 29 Oct 2021 18:40:57 +0000 (UTC) Received: from eperezma.remote.csb (unknown [10.39.192.75]) by smtp.corp.redhat.com (Postfix) with ESMTP id 2976C6F920; Fri, 29 Oct 2021 18:39:15 +0000 (UTC) From: =?UTF-8?q?Eugenio=20P=C3=A9rez?= To: qemu-devel@nongnu.org Subject: [RFC PATCH v5 14/26] Add vhost_svq_set_guest_call_notifier Date: Fri, 29 Oct 2021 20:35:13 +0200 Message-Id: <20211029183525.1776416-15-eperezma@redhat.com> In-Reply-To: <20211029183525.1776416-1-eperezma@redhat.com> References: <20211029183525.1776416-1-eperezma@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=eperezma@redhat.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=216.205.24.124; envelope-from=eperezma@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -27 X-Spam_score: -2.8 X-Spam_bar: -- X-Spam_report: (-2.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, 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_H2=-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: Laurent Vivier , Parav Pandit , "Michael S. Tsirkin" , Jason Wang , Juan Quintela , Richard Henderson , Stefan Hajnoczi , Peter Xu , Markus Armbruster , Harpreet Singh Anand , Xiao W Wang , Eli Cohen , Paolo Bonzini , Stefano Garzarella , Eric Blake , virtualization@lists.linux-foundation.org, Eduardo Habkost Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This allows vhost-vdpa device to set SVQ -> guest notifier to SVQ. Signed-off-by: Eugenio Pérez --- hw/virtio/vhost-shadow-virtqueue.h | 1 + hw/virtio/vhost-shadow-virtqueue.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/hw/virtio/vhost-shadow-virtqueue.h b/hw/virtio/vhost-shadow-virtqueue.h index 9e089edb17..607ec6e5eb 100644 --- a/hw/virtio/vhost-shadow-virtqueue.h +++ b/hw/virtio/vhost-shadow-virtqueue.h @@ -16,6 +16,7 @@ typedef struct VhostShadowVirtqueue VhostShadowVirtqueue; void vhost_svq_set_svq_kick_fd(VhostShadowVirtqueue *svq, int svq_kick_fd); +void vhost_svq_set_guest_call_notifier(VhostShadowVirtqueue *svq, int call_fd); const EventNotifier *vhost_svq_get_dev_kick_notifier( const VhostShadowVirtqueue *svq); const EventNotifier *vhost_svq_get_svq_call_notifier( diff --git a/hw/virtio/vhost-shadow-virtqueue.c b/hw/virtio/vhost-shadow-virtqueue.c index 7acac1be87..6535eefccd 100644 --- a/hw/virtio/vhost-shadow-virtqueue.c +++ b/hw/virtio/vhost-shadow-virtqueue.c @@ -30,6 +30,9 @@ typedef struct VhostShadowVirtqueue { */ EventNotifier svq_kick; + /* Guest's call notifier, where SVQ calls guest. */ + EventNotifier svq_call; + /* Device's host notifier memory region. NULL means no region */ void *host_notifier_mr; @@ -84,6 +87,19 @@ const EventNotifier *vhost_svq_get_svq_call_notifier( return &svq->hdev_call; } +/** + * Set the call notifier for the SVQ to call the guest + * + * @svq Shadow virtqueue + * @call_fd call notifier + * + * Called on BQL context. + */ +void vhost_svq_set_guest_call_notifier(VhostShadowVirtqueue *svq, int call_fd) +{ + event_notifier_init_fd(&svq->svq_call, call_fd); +} + /** * Convenience function to set guest to SVQ kick fd * -- 2.27.0