New device flag VFIO_DEVICE_FLAGS_MIGRATABLE is added for vfio mdev
device vGPU to claim the capability for live migration.
Signed-off-by: Yulei Zhang <yulei.zh...@intel.com>
---
drivers/gpu/drm/i915/gvt/kvmgt.c | 1 +
include/uapi/linux/vfio.h | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c
index d2b13ae..c44b319 100644
--- a/drivers/gpu/drm/i915/gvt/kvmgt.c
+++ b/drivers/gpu/drm/i915/gvt/kvmgt.c
@@ -940,6 +940,7 @@ static long intel_vgpu_ioctl(struct mdev_device *mdev,
unsigned int cmd,
info.flags = VFIO_DEVICE_FLAGS_PCI;
info.flags |= VFIO_DEVICE_FLAGS_RESET;
+ info.flags |= VFIO_DEVICE_FLAGS_MIGRATABLE;
info.num_regions = VFIO_PCI_NUM_REGIONS;
info.num_irqs = VFIO_PCI_NUM_IRQS;
diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index ae46105..9ad9ce1 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -199,6 +199,7 @@ struct vfio_device_info {
#define VFIO_DEVICE_FLAGS_PLATFORM (1 << 2) /* vfio-platform device */
#define VFIO_DEVICE_FLAGS_AMBA (1 << 3) /* vfio-amba device */
#define VFIO_DEVICE_FLAGS_CCW (1 << 4) /* vfio-ccw device */
+#define VFIO_DEVICE_FLAGS_MIGRATABLE (1 << 5) /* Device supports migrate */
__u32 num_regions; /* Max region index + 1 */
__u32 num_irqs; /* Max IRQ index + 1 */
};
--
2.7.4
