From nobody Sun Nov 24 10:37:21 2024 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 1724781488867289.4057791404887; Tue, 27 Aug 2024 10:58:08 -0700 (PDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1sj0RE-0002mz-PE; Tue, 27 Aug 2024 13:57:04 -0400 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 1sj0Qb-00082T-3K for qemu-devel@nongnu.org; Tue, 27 Aug 2024 13:56:28 -0400 Received: from vps-vb.mhejs.net ([37.28.154.113]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1sj0QZ-0001e8-JM for qemu-devel@nongnu.org; Tue, 27 Aug 2024 13:56:24 -0400 Received: from MUA by vps-vb.mhejs.net with esmtps (TLS1.2) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.94.2) (envelope-from ) id 1sj0QT-0002QJ-4P; Tue, 27 Aug 2024 19:56:17 +0200 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 v2 16/17] vfio/migration: Add x-migration-multifd-transfer VFIO property Date: Tue, 27 Aug 2024 19:54:35 +0200 Message-ID: <49b797459ace788bce2de757df3a722c3678cb0c.1724701542.git.maciej.szmigiero@oracle.com> X-Mailer: git-send-email 2.45.2 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=37.28.154.113; envelope-from=mail@maciej.szmigiero.name; helo=vps-vb.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, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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: 1724781491032116600 Content-Type: text/plain; charset="utf-8" From: "Maciej S. Szmigiero" This property allows configuring at runtime whether to send the particular device state via multifd channels when live migrating that device. It is ignored on the receive side and defaults to "false" for bit stream compatibility with older QEMU versions. Signed-off-by: Maciej S. Szmigiero --- hw/vfio/pci.c | 7 +++++++ include/hw/vfio/vfio-common.h | 1 + 2 files changed, 8 insertions(+) diff --git a/hw/vfio/pci.c b/hw/vfio/pci.c index 08cb56d27a05..b68f08ba8a4f 100644 --- a/hw/vfio/pci.c +++ b/hw/vfio/pci.c @@ -3354,6 +3354,8 @@ static void vfio_instance_init(Object *obj) pci_dev->cap_present |=3D QEMU_PCI_CAP_EXPRESS; } =20 +static PropertyInfo qdev_prop_bool_mutable; + static Property vfio_pci_dev_properties[] =3D { DEFINE_PROP_PCI_HOST_DEVADDR("host", VFIOPCIDevice, host), DEFINE_PROP_UUID_NODEFAULT("vf-token", VFIOPCIDevice, vf_token), @@ -3378,6 +3380,8 @@ static Property vfio_pci_dev_properties[] =3D { VFIO_FEATURE_ENABLE_IGD_OPREGION_BIT, false), DEFINE_PROP_ON_OFF_AUTO("enable-migration", VFIOPCIDevice, vbasedev.enable_migration, ON_OFF_AUTO_AUTO), + DEFINE_PROP("x-migration-multifd-transfer", VFIOPCIDevice, + vbasedev.migration_multifd_transfer, qdev_prop_bool_mutabl= e, bool), DEFINE_PROP_UINT64("x-migration-max-queued-buffers", VFIOPCIDevice, vbasedev.migration_max_queued_buffers, UINT64_MAX), DEFINE_PROP_BOOL("migration-events", VFIOPCIDevice, @@ -3477,6 +3481,9 @@ static const TypeInfo vfio_pci_nohotplug_dev_info =3D= { =20 static void register_vfio_pci_dev_type(void) { + qdev_prop_bool_mutable =3D qdev_prop_bool; + qdev_prop_bool_mutable.realized_set_allowed =3D true; + type_register_static(&vfio_pci_dev_info); type_register_static(&vfio_pci_nohotplug_dev_info); } diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index ba5b9464e79a..fe05acb9a5d1 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -149,6 +149,7 @@ typedef struct VFIODevice { bool no_mmap; bool ram_block_discard_allowed; OnOffAuto enable_migration; + bool migration_multifd_transfer; bool migration_events; uint64_t migration_max_queued_buffers; VFIODeviceOps *ops;