diff options
Diffstat (limited to 'src/include/ipxe/vmbus.h')
| -rw-r--r-- | src/include/ipxe/vmbus.h | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/src/include/ipxe/vmbus.h b/src/include/ipxe/vmbus.h index 26fc578c..68244185 100644 --- a/src/include/ipxe/vmbus.h +++ b/src/include/ipxe/vmbus.h @@ -479,6 +479,8 @@ struct vmbus_device { /** Hyper-V hypervisor */ struct hv_hypervisor *hv; + /** Channel instance */ + union uuid instance; /** Channel ID */ unsigned int channel; /** Monitor ID */ @@ -527,6 +529,12 @@ struct vmbus_driver { * @ret rc Return status code */ int ( * probe ) ( struct vmbus_device *vmdev ); + /** Reset device + * + * @v vmdev VMBus device + * @ret rc Return status code + */ + int ( * reset ) ( struct vmbus_device *vmdev ); /** Remove device * * @v vmdev VMBus device @@ -609,6 +617,23 @@ vmbus_unregister_pages ( struct vmbus_device *vmdev, list_del ( &pages->list ); } +extern unsigned int vmbus_obsolete_gpadl; + +/** + * Check if GPADL is obsolete + * + * @v gpadl GPADL ID + * @v is_obsolete GPADL ID is obsolete + * + * Check if GPADL is obsolete (i.e. was created before the most recent + * Hyper-V reset). + */ +static inline __attribute__ (( always_inline )) int +vmbus_gpadl_is_obsolete ( unsigned int gpadl ) { + + return ( gpadl <= vmbus_obsolete_gpadl ); +} + extern int vmbus_establish_gpadl ( struct vmbus_device *vmdev, userptr_t data, size_t len ); extern int vmbus_gpadl_teardown ( struct vmbus_device *vmdev, @@ -629,6 +654,7 @@ extern int vmbus_poll ( struct vmbus_device *vmdev ); extern void vmbus_dump_channel ( struct vmbus_device *vmdev ); extern int vmbus_probe ( struct hv_hypervisor *hv, struct device *parent ); +extern int vmbus_reset ( struct hv_hypervisor *hv, struct device *parent ); extern void vmbus_remove ( struct hv_hypervisor *hv, struct device *parent ); #endif /* _IPXE_VMBUS_H */ |