vfio/iommufd: cpr state

VFIO iommufd devices will need access to ioas_id, devid, and hwpt_id in
new QEMU at realize time, so add them to CPR state.  Define CprVFIODevice
as the object which holds the state and is serialized to the vmstate file.
Define accessors to copy state between VFIODevice and CprVFIODevice.

Signed-off-by: Steve Sistare <steven.sistare@oracle.com>
Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Link: https://lore.kernel.org/qemu-devel/1751493538-202042-15-git-send-email-steven.sistare@oracle.com
Signed-off-by: Cédric Le Goater <clg@redhat.com>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/hw/vfio/vfio-cpr.h b/include/hw/vfio/vfio-cpr.h
index 286e3d4e9a..2878372495 100644
--- a/include/hw/vfio/vfio-cpr.h
+++ b/include/hw/vfio/vfio-cpr.h
@@ -34,6 +34,8 @@ typedef struct VFIOContainerCPR {
 typedef struct VFIODeviceCPR {
     Error *mdev_blocker;
     Error *id_blocker;
+    uint32_t hwpt_id;
+    uint32_t ioas_id;
 } VFIODeviceCPR;
 
 bool vfio_legacy_cpr_register_container(struct VFIOContainer *container,
@@ -55,6 +57,7 @@ bool vfio_iommufd_cpr_register_iommufd(struct IOMMUFDBackend *be, Error **errp);
 void vfio_iommufd_cpr_unregister_iommufd(struct IOMMUFDBackend *be);
 void vfio_iommufd_cpr_register_device(struct VFIODevice *vbasedev);
 void vfio_iommufd_cpr_unregister_device(struct VFIODevice *vbasedev);
+void vfio_cpr_load_device(struct VFIODevice *vbasedev);
 
 int vfio_cpr_group_get_device_fd(int d, const char *name);