From nobody Fri Apr 4 21:40:12 2025 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1739997621307722.841488599792; Wed, 19 Feb 2025 12:40:21 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1tkqoI-0007rV-7X; Wed, 19 Feb 2025 15:36:46 -0500 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tkqoF-0007dD-R9 for qemu-devel@nongnu.org; Wed, 19 Feb 2025 15:36:43 -0500 Received: from vps-ovh.mhejs.net ([145.239.82.108]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1tkqoE-0004p2-A1 for qemu-devel@nongnu.org; Wed, 19 Feb 2025 15:36:43 -0500 Received: from MUA by vps-ovh.mhejs.net with esmtpsa (TLS1.3) tls TLS_AES_256_GCM_SHA384 (Exim 4.98) (envelope-from ) id 1tkqo0-00000007VVI-0SRV; Wed, 19 Feb 2025 21:36:28 +0100 From: "Maciej S. Szmigiero" To: Peter Xu , Fabiano Rosas Cc: Alex Williamson , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , Eric Blake , Markus Armbruster , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , Avihai Horon , Joao Martins , qemu-devel@nongnu.org Subject: [PATCH v5 24/36] vfio/migration: Multifd device state transfer - add support checking function Date: Wed, 19 Feb 2025 21:34:06 +0100 Message-ID: <8e7f0082551182e8372269e1eceae9ba4029a4a2.1739994627.git.maciej.szmigiero@oracle.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: References: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=145.239.82.108; envelope-from=mhej@vps-ovh.mhejs.net; helo=vps-ovh.mhejs.net X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, HEADER_FROM_DIFFERENT_DOMAINS=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=0.001, SPF_HELO_PASS=-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: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZM-MESSAGEID: 1739997622110019000 Content-Type: text/plain; charset="utf-8" From: "Maciej S. Szmigiero" Add vfio_multifd_transfer_supported() function that tells whether the multifd device state transfer is supported. Signed-off-by: Maciej S. Szmigiero Reviewed-by: C=C3=A9dric Le Goater --- hw/vfio/migration-multifd.c | 6 ++++++ hw/vfio/migration-multifd.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/hw/vfio/migration-multifd.c b/hw/vfio/migration-multifd.c index 760b110a39b9..7328ad8e925c 100644 --- a/hw/vfio/migration-multifd.c +++ b/hw/vfio/migration-multifd.c @@ -83,3 +83,9 @@ static VFIOStateBuffer *vfio_state_buffers_at(VFIOStateBu= ffers *bufs, guint idx) { return &g_array_index(bufs->array, VFIOStateBuffer, idx); } + +bool vfio_multifd_transfer_supported(void) +{ + return multifd_device_state_supported() && + migrate_send_switchover_start(); +} diff --git a/hw/vfio/migration-multifd.h b/hw/vfio/migration-multifd.h index 64d117b27210..8fe004c1da81 100644 --- a/hw/vfio/migration-multifd.h +++ b/hw/vfio/migration-multifd.h @@ -12,4 +12,6 @@ =20 #include "hw/vfio/vfio-common.h" =20 +bool vfio_multifd_transfer_supported(void); + #endif