This patchset is pre-requisite to export and provision device config attributes and features for vdpa live migration, in a way backward and forward compatibility can be retained. The follow up work [1] will need to be built around the new feature provisioning uAPI, with which it's easier to formalize migration compatibility support at the driver level. Thanks, -Siwei [1] [PATCH v3 0/4] vDPA: initial config export via "vdpa dev show" https://lore.kernel.org/virtualization/1666392237-4042-1-git-send-email-si-wei.liu@xxxxxxxxxx/ --- Si-Wei Liu (6): vdpa: fix improper error message when adding vdpa dev vdpa: conditionally read STATUS in config space vdpa: validate provisioned device features against specified attribute virtio: VIRTIO_DEVICE_F_MASK for all per-device features vdpa: validate device feature provisioning against supported class vdpa/mlx5: support device features provisioning drivers/vdpa/mlx5/net/mlx5_vnet.c | 72 ++++++++++++++++++++++------ drivers/vdpa/vdpa.c | 98 ++++++++++++++++++++++++++++++++------ include/uapi/linux/virtio_config.h | 8 ++++ 3 files changed, 149 insertions(+), 29 deletions(-) -- 1.8.3.1 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
