diff options
Diffstat (limited to 'include/hw/xen/xen-bus.h')
| -rw-r--r-- | include/hw/xen/xen-bus.h | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/include/hw/xen/xen-bus.h b/include/hw/xen/xen-bus.h index df73674fcd..63a09b67ee 100644 --- a/include/hw/xen/xen-bus.h +++ b/include/hw/xen/xen-bus.h @@ -24,6 +24,8 @@ typedef struct XenDevice { enum xenbus_state backend_state, frontend_state; Notifier exit; XenWatch *frontend_state_watch; + xengnttab_handle *xgth; + bool feature_grant_copy; } XenDevice; typedef char *(*XenDeviceGetName)(XenDevice *xendev, Error **errp); @@ -79,4 +81,27 @@ void xen_device_backend_set_state(XenDevice *xendev, enum xenbus_state state); enum xenbus_state xen_device_backend_get_state(XenDevice *xendev); +void xen_device_set_max_grant_refs(XenDevice *xendev, unsigned int nr_refs, + Error **errp); +void *xen_device_map_grant_refs(XenDevice *xendev, uint32_t *refs, + unsigned int nr_refs, int prot, + Error **errp); +void xen_device_unmap_grant_refs(XenDevice *xendev, void *map, + unsigned int nr_refs, Error **errp); + +typedef struct XenDeviceGrantCopySegment { + union { + void *virt; + struct { + uint32_t ref; + off_t offset; + } foreign; + } source, dest; + size_t len; +} XenDeviceGrantCopySegment; + +void xen_device_copy_grant_refs(XenDevice *xendev, bool to_domain, + XenDeviceGrantCopySegment segs[], + unsigned int nr_segs, Error **errp); + #endif /* HW_XEN_BUS_H */ |