Merge tag 'pull-vfio-20250715' of https://github.com/legoater/qemu into staging

vfio queue:

* Fixed vfio-user issues reported by Coverity
* Tweaked VFIO migration with multifd to support aarch64
* Introduced a property to override a device PCI class code

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# gpg: Signature made Tue 15 Jul 2025 11:22:08 EDT
# gpg:                using RSA key A0F66548F04895EBFE6B0B6051A343C7CFFBECA1
# gpg: Good signature from "Cédric Le Goater <clg@redhat.com>" [full]
# gpg:                 aka "Cédric Le Goater <clg@kaod.org>" [full]
# Primary key fingerprint: A0F6 6548 F048 95EB FE6B  0B60 51A3 43C7 CFFB ECA1

* tag 'pull-vfio-20250715' of https://github.com/legoater/qemu:
  vfio/migration: Max in-flight VFIO device state buffers size limit
  vfio/migration: Add x-migration-load-config-after-iter VFIO property
  vfio/pci: Introduce x-pci-class-code option
  hw/vfio-user: fix use of uninitialized variable
  hw/vfio-user: wait for proxy close correctly
  hw/vfio: fix region fd initialization
  hw/vfio-user: add Cédric Le Goater as a maintainer

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

1 files changed, 9 insertions, 1 deletions

diff --git a/hw/vfio/migration.c b/hw/vfio/migration.c
index c329578eec..4c06e3db93 100644
--- a/hw/vfio/migration.c
+++ b/hw/vfio/migration.c
@@ -675,7 +675,11 @@ static void vfio_save_state(QEMUFile *f, void *opaque)
     int ret;
 
     if (vfio_multifd_transfer_enabled(vbasedev)) {
-        vfio_multifd_emit_dummy_eos(vbasedev, f);
+        if (vfio_load_config_after_iter(vbasedev)) {
+            qemu_put_be64(f, VFIO_MIG_FLAG_DEV_CONFIG_LOAD_READY);
+        } else {
+            vfio_multifd_emit_dummy_eos(vbasedev, f);
+        }
         return;
     }
 
@@ -784,6 +788,10 @@ static int vfio_load_state(QEMUFile *f, void *opaque, int version_id)
 
             return ret;
         }
+        case VFIO_MIG_FLAG_DEV_CONFIG_LOAD_READY:
+        {
+            return vfio_load_state_config_load_ready(vbasedev);
+        }
         default:
             error_report("%s: Unknown tag 0x%"PRIx64, vbasedev->name, data);
             return -EINVAL;