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[2620:137:e000::1:20]) by mx.google.com with ESMTP id v18-20020aa7dbd2000000b00447d6f244c6si9796555edt.248.2022.10.18.02.03.46; Tue, 18 Oct 2022 02:04:11 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=pass header.i=@intel.com header.s=Intel header.b=G2co5r0G; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230185AbiJRIic (ORCPT + 99 others); Tue, 18 Oct 2022 04:38:32 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54378 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230163AbiJRIiV (ORCPT ); Tue, 18 Oct 2022 04:38:21 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id C91769F773 for ; Tue, 18 Oct 2022 01:38:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1666082296; x=1697618296; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=PL0A8+uYcphH0sIJRwXwGnLqTPe3EEcbUoVnkmTTq0Q=; b=G2co5r0GCuLEe7+tygjD5t455Tjk+9n4WGRgvg0HGN3s6R7eXNB6Ic8f LE5Keykfo8lHhuuwi49RMlKzgrYavRuIB2LX3XFNsAJQjK4hPza9sCAGZ 398qzHQ2nCb+PoKt2o6T1nywo6ndDScV9xdO+rxmzIUlJ379Sgct5G09X Fz22WBnQAYxs9dDaSOxeJ9712flzGnKdSMXoqOB6dpTd803hY4oWVT04G pYnfD4fdxeNNY48HOALmbLFKm4Att1mzcia0VOMeta5sxrupWE4W3RZjc XRYVpDOP2YgbhL9/xBDEPoq6rFHZgmHpmD1jL7WtLp8sM1pHf8Ye0ZelU A==; X-IronPort-AV: E=McAfee;i="6500,9779,10503"; a="368069143" X-IronPort-AV: E=Sophos;i="5.95,193,1661842800"; d="scan'208";a="368069143" Received: from orsmga004.jf.intel.com ([10.7.209.38]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2022 01:38:15 -0700 X-IronPort-AV: E=McAfee;i="6500,9779,10503"; a="753951155" X-IronPort-AV: E=Sophos;i="5.95,193,1661842800"; d="scan'208";a="753951155" Received: from aboyhan-mobl1.ger.corp.intel.com (HELO sboeuf-mobl.home) ([10.252.26.192]) by orsmga004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 18 Oct 2022 01:38:13 -0700 From: sebastien.boeuf@intel.com To: linux-kernel@vger.kernel.org, virtualization@lists.linux-foundation.org Cc: mst@redhat.com, jasowang@redhat.com, eperezma@redhat.com, sebastien.boeuf@intel.com Subject: [PATCH v4 4/4] vdpa_sim: Implement resume vdpa op Date: Tue, 18 Oct 2022 10:37:27 +0200 Message-Id: <56c045ac70e44e7d80f3f9e901deae3d7485b2a1.1666082013.git.sebastien.boeuf@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: References: MIME-Version: 1.0 X-Spam-Status: No, score=-4.7 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,LOTS_OF_MONEY, RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747015540163004197?= X-GMAIL-MSGID: =?utf-8?q?1747015540163004197?= From: Sebastien Boeuf Implement resume operation for vdpa_sim devices, so vhost-vdpa will offer that backend feature and userspace can effectively resume the device. Signed-off-by: Sebastien Boeuf --- drivers/vdpa/vdpa_sim/vdpa_sim.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/vdpa/vdpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c index b071f0d842fb..05e3802fb746 100644 --- a/drivers/vdpa/vdpa_sim/vdpa_sim.c +++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c @@ -527,6 +527,18 @@ static int vdpasim_suspend(struct vdpa_device *vdpa) return 0; } +static int vdpasim_resume(struct vdpa_device *vdpa) +{ + struct vdpasim *vdpasim = vdpa_to_sim(vdpa); + int i; + + spin_lock(&vdpasim->lock); + vdpasim->running = true; + spin_unlock(&vdpasim->lock); + + return 0; +} + static size_t vdpasim_get_config_size(struct vdpa_device *vdpa) { struct vdpasim *vdpasim = vdpa_to_sim(vdpa); @@ -717,6 +729,7 @@ static const struct vdpa_config_ops vdpasim_config_ops = { .set_status = vdpasim_set_status, .reset = vdpasim_reset, .suspend = vdpasim_suspend, + .resume = vdpasim_resume, .get_config_size = vdpasim_get_config_size, .get_config = vdpasim_get_config, .set_config = vdpasim_set_config, @@ -750,6 +763,7 @@ static const struct vdpa_config_ops vdpasim_batch_config_ops = { .set_status = vdpasim_set_status, .reset = vdpasim_reset, .suspend = vdpasim_suspend, + .resume = vdpasim_resume, .get_config_size = vdpasim_get_config_size, .get_config = vdpasim_get_config, .set_config = vdpasim_set_config,