diff options
Diffstat (limited to 'include/hw/vfio/vfio-common.h')
| -rw-r--r-- | include/hw/vfio/vfio-common.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/include/hw/vfio/vfio-common.h b/include/hw/vfio/vfio-common.h index ac35136a11..04b123a6c9 100644 --- a/include/hw/vfio/vfio-common.h +++ b/include/hw/vfio/vfio-common.h @@ -36,6 +36,23 @@ #define VFIO_MSG_PREFIX "vfio %s: " +/* + * Flags to be used as unique delimiters for VFIO devices in the migration + * stream. These flags are composed as: + * 0xffffffff => MSB 32-bit all 1s + * 0xef10 => Magic ID, represents emulated (virtual) function IO + * 0x0000 => 16-bits reserved for flags + * + * The beginning of state information is marked by _DEV_CONFIG_STATE, + * _DEV_SETUP_STATE, or _DEV_DATA_STATE, respectively. The end of a + * certain state information is marked by _END_OF_STATE. + */ +#define VFIO_MIG_FLAG_END_OF_STATE (0xffffffffef100001ULL) +#define VFIO_MIG_FLAG_DEV_CONFIG_STATE (0xffffffffef100002ULL) +#define VFIO_MIG_FLAG_DEV_SETUP_STATE (0xffffffffef100003ULL) +#define VFIO_MIG_FLAG_DEV_DATA_STATE (0xffffffffef100004ULL) +#define VFIO_MIG_FLAG_DEV_INIT_DATA_SENT (0xffffffffef100005ULL) + enum { VFIO_DEVICE_TYPE_PCI = 0, VFIO_DEVICE_TYPE_PLATFORM = 1, @@ -61,6 +78,8 @@ typedef struct VFIORegion { uint8_t nr; /* cache the region number for debug */ } VFIORegion; +typedef struct VFIOMultifd VFIOMultifd; + typedef struct VFIOMigration { struct VFIODevice *vbasedev; VMChangeStateEntry *vm_state; @@ -72,6 +91,8 @@ typedef struct VFIOMigration { uint64_t mig_flags; uint64_t precopy_init_size; uint64_t precopy_dirty_size; + bool multifd_transfer; + VFIOMultifd *multifd; bool initial_data_sent; bool event_save_iterate_started; @@ -133,6 +154,7 @@ typedef struct VFIODevice { bool no_mmap; bool ram_block_discard_allowed; OnOffAuto enable_migration; + OnOffAuto migration_multifd_transfer; bool migration_events; VFIODeviceOps *ops; unsigned int num_irqs; @@ -274,9 +296,13 @@ void vfio_unblock_multiple_devices_migration(void); bool vfio_viommu_preset(VFIODevice *vbasedev); int64_t vfio_mig_bytes_transferred(void); void vfio_reset_bytes_transferred(void); +void vfio_mig_add_bytes_transferred(unsigned long val); bool vfio_device_state_is_running(VFIODevice *vbasedev); bool vfio_device_state_is_precopy(VFIODevice *vbasedev); +int vfio_save_device_config_state(QEMUFile *f, void *opaque, Error **errp); +int vfio_load_device_config_state(QEMUFile *f, void *opaque); + #ifdef CONFIG_LINUX int vfio_get_region_info(VFIODevice *vbasedev, int index, struct vfio_region_info **info); @@ -291,6 +317,11 @@ struct vfio_info_cap_header * vfio_get_device_info_cap(struct vfio_device_info *info, uint16_t id); struct vfio_info_cap_header * vfio_get_cap(void *ptr, uint32_t cap_offset, uint16_t id); + +int vfio_migration_set_state(VFIODevice *vbasedev, + enum vfio_device_mig_state new_state, + enum vfio_device_mig_state recover_state, + Error **errp); #endif bool vfio_migration_realize(VFIODevice *vbasedev, Error **errp); |