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Szmigiero" , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Subject: [PULL 32/42] vfio/migration: Multifd device state transfer - add support checking function Date: Thu, 6 Mar 2025 15:14:08 +0100 Message-ID: <20250306141419.2015340-33-clg@redhat.com> In-Reply-To: <20250306141419.2015340-1-clg@redhat.com> References: <20250306141419.2015340-1-clg@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.111 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=170.10.133.124; envelope-from=clg@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 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_NONE=-0.0001, RCVD_IN_MSPIKE_H2=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_BLOCKED=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: 2.1.29 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-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1741270787003019100 From: "Maciej S. Szmigiero" Add vfio_multifd_transfer_supported() function that tells whether the multifd device state transfer is supported. Reviewed-by: C=C3=A9dric Le Goater Signed-off-by: Maciej S. Szmigiero Link: https://lore.kernel.org/qemu-devel/8ce50256f341b3d47342bb217cb5fbb2de= b14639.1741124640.git.maciej.szmigiero@oracle.com Signed-off-by: C=C3=A9dric Le Goater --- hw/vfio/migration-multifd.h | 2 ++ hw/vfio/migration-multifd.c | 6 ++++++ 2 files changed, 8 insertions(+) diff --git a/hw/vfio/migration-multifd.h b/hw/vfio/migration-multifd.h index 5b221c6e16b0265314034a6060b588e984b8ac5e..1b60d5f67a1c76cdac21d71a7fb= 7335f4e194ffe 100644 --- a/hw/vfio/migration-multifd.h +++ b/hw/vfio/migration-multifd.h @@ -14,4 +14,6 @@ =20 #include "hw/vfio/vfio-common.h" =20 +bool vfio_multifd_transfer_supported(void); + #endif diff --git a/hw/vfio/migration-multifd.c b/hw/vfio/migration-multifd.c index fa594b33fdd1112e1d3ecf52a35fecb551e29999..79fae0b6296f9244317ed5215e4= 950703c45a717 100644 --- a/hw/vfio/migration-multifd.c +++ b/hw/vfio/migration-multifd.c @@ -31,3 +31,9 @@ typedef struct VFIODeviceStatePacket { uint32_t flags; uint8_t data[0]; } QEMU_PACKED VFIODeviceStatePacket; + +bool vfio_multifd_transfer_supported(void) +{ + return multifd_device_state_supported() && + migrate_send_switchover_start(); +} --=20 2.48.1