diff options
Diffstat (limited to 'include/libvfio-user.h')
| -rw-r--r-- | include/libvfio-user.h | 32 |
1 files changed, 25 insertions, 7 deletions
diff --git a/include/libvfio-user.h b/include/libvfio-user.h index e95c26a..629727f 100644 --- a/include/libvfio-user.h +++ b/include/libvfio-user.h @@ -671,15 +671,33 @@ typedef struct { } vfu_migration_callbacks_t; -#ifndef VFIO_DEVICE_STATE_STOP +/** + * The definition for VFIO_DEVICE_STATE_XXX differs with the version of vfio + * header file used. Some old systems wouldn't have these definitions. Some + * other newer systems would be using region based migration, and not + * have VFIO_DEVICE_STATE_V1_XXXX defined. The latest ones have + * VFIO_DEVICE_STATE_V1_XXXX defined. The following addresses all + * these scenarios. + */ +#if defined(VFIO_DEVICE_STATE_STOP) + +_Static_assert(VFIO_DEVICE_STATE_STOP == 0, + "incompatible VFIO_DEVICE_STATE_STOP definition"); + +#define VFIO_DEVICE_STATE_V1_STOP VFIO_DEVICE_STATE_STOP +#define VFIO_DEVICE_STATE_V1_RUNNING VFIO_DEVICE_STATE_RUNNING +#define VFIO_DEVICE_STATE_V1_SAVING VFIO_DEVICE_STATE_SAVING +#define VFIO_DEVICE_STATE_V1_RESUMING VFIO_DEVICE_STATE_RESUMING + +#elif !defined(VFIO_REGION_TYPE_MIGRATION_DEPRECATED) /* VFIO_DEVICE_STATE_STOP */ -#define VFIO_DEVICE_STATE_STOP (0) -#define VFIO_DEVICE_STATE_RUNNING (1 << 0) -#define VFIO_DEVICE_STATE_SAVING (1 << 1) -#define VFIO_DEVICE_STATE_RESUMING (1 << 2) -#define VFIO_DEVICE_STATE_MASK ((1 << 3) - 1) +#define VFIO_DEVICE_STATE_V1_STOP (0) +#define VFIO_DEVICE_STATE_V1_RUNNING (1 << 0) +#define VFIO_DEVICE_STATE_V1_SAVING (1 << 1) +#define VFIO_DEVICE_STATE_V1_RESUMING (1 << 2) +#define VFIO_DEVICE_STATE_MASK ((1 << 3) - 1) -#endif /* VFIO_DEVICE_STATE_STOP */ +#endif /* VFIO_REGION_TYPE_MIGRATION_DEPRECATED */ /* * The currently defined migration registers; if using migration callbacks, |