diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/hw/xen/xen_backend.h | 34 | ||||
| -rw-r--r-- | include/hw/xen/xen_common.h | 17 |
2 files changed, 48 insertions, 3 deletions
diff --git a/include/hw/xen/xen_backend.h b/include/hw/xen/xen_backend.h index 3a27692407..9c17fdd85d 100644 --- a/include/hw/xen/xen_backend.h +++ b/include/hw/xen/xen_backend.h @@ -16,7 +16,6 @@ /* variables */ extern struct xs_handle *xenstore; extern const char *xen_protocol; -extern bool xen_feature_grant_copy; extern DeviceState *xen_sysdev; extern BusState *xen_sysbus; @@ -42,6 +41,39 @@ void xen_be_register_common(void); int xen_be_register(const char *type, struct XenDevOps *ops); int xen_be_set_state(struct XenDevice *xendev, enum xenbus_state state); int xen_be_bind_evtchn(struct XenDevice *xendev); +void xen_be_set_max_grant_refs(struct XenDevice *xendev, + unsigned int nr_refs); +void *xen_be_map_grant_refs(struct XenDevice *xendev, uint32_t *refs, + unsigned int nr_refs, int prot); +void xen_be_unmap_grant_refs(struct XenDevice *xendev, void *ptr, + unsigned int nr_refs); + +typedef struct XenGrantCopySegment { + union { + void *virt; + struct { + uint32_t ref; + off_t offset; + } foreign; + } source, dest; + size_t len; +} XenGrantCopySegment; + +int xen_be_copy_grant_refs(struct XenDevice *xendev, + bool to_domain, XenGrantCopySegment segs[], + unsigned int nr_segs); + +static inline void *xen_be_map_grant_ref(struct XenDevice *xendev, + uint32_t ref, int prot) +{ + return xen_be_map_grant_refs(xendev, &ref, 1, prot); +} + +static inline void xen_be_unmap_grant_ref(struct XenDevice *xendev, + void *ptr) +{ + return xen_be_unmap_grant_refs(xendev, ptr, 1); +} /* actual backend drivers */ extern struct XenDevOps xen_console_ops; /* xen_console.c */ diff --git a/include/hw/xen/xen_common.h b/include/hw/xen/xen_common.h index 5f1402b494..bbf207dcef 100644 --- a/include/hw/xen/xen_common.h +++ b/include/hw/xen/xen_common.h @@ -667,8 +667,21 @@ static inline int xen_domain_create(xc_interface *xc, uint32_t ssidref, #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40800 - -typedef void *xengnttab_grant_copy_segment_t; +struct xengnttab_grant_copy_segment { + union xengnttab_copy_ptr { + void *virt; + struct { + uint32_t ref; + uint16_t offset; + uint16_t domid; + } foreign; + } source, dest; + uint16_t len; + uint16_t flags; + int16_t status; +}; + +typedef struct xengnttab_grant_copy_segment xengnttab_grant_copy_segment_t; static inline int xengnttab_grant_copy(xengnttab_handle *xgt, uint32_t count, xengnttab_grant_copy_segment_t *segs) |