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#ifndef __XEN_PUBLIC_IO_XEN_PVCALLS_H__
#define __XEN_PUBLIC_IO_XEN_PVCALLS_H__
#include <linux/net.h>
#include <xen/interface/io/ring.h>
#include <xen/interface/grant_table.h>
/* "1" means socket, connect, release, bind, listen, accept and poll */
#define XENBUS_FUNCTIONS_CALLS "1"
/*
* See docs/misc/pvcalls.markdown in xen.git for the full specification:
* https://xenbits.xen.org/docs/unstable/misc/pvcalls.html
*/
struct pvcalls_data_intf {
RING_IDX in_cons, in_prod, in_error;
uint8_t pad1[52];
RING_IDX out_cons, out_prod, out_error;
uint8_t pad2[52];
RING_IDX ring_order;
grant_ref_t ref[];
};
DEFINE_XEN_FLEX_RING(pvcalls);
#define PVCALLS_SOCKET 0
#define PVCALLS_CONNECT 1
#define PVCALLS_RELEASE 2
#define PVCALLS_BIND 3
#define PVCALLS_LISTEN 4
#define PVCALLS_ACCEPT 5
#define PVCALLS_POLL 6
struct xen_pvcalls_request {
uint32_t req_id; /* private to guest, echoed in response */
uint32_t cmd; /* command to execute */
union {
struct xen_pvcalls_socket {
uint64_t id;
uint32_t domain;
uint32_t type;
uint32_t protocol;
} socket;
struct xen_pvcalls_connect {
uint64_t id;
uint8_t addr[28];
uint32_t len;
uint32_t flags;
grant_ref_t ref;
uint32_t evtchn;
} connect;
struct xen_pvcalls_release {
uint64_t id;
uint8_t reuse;
} release;
struct xen_pvcalls_bind {
uint64_t id;
uint8_t addr[28];
uint32_t len;
} bind;
struct xen_pvcalls_listen {
uint64_t id;
uint32_t backlog;
} listen;
struct xen_pvcalls_accept {
uint64_t id;
uint64_t id_new;
grant_ref_t ref;
uint32_t evtchn;
} accept;
struct xen_pvcalls_poll {
uint64_t id;
} poll;
/* dummy member to force sizeof(struct xen_pvcalls_request)
* to match across archs */
struct xen_pvcalls_dummy {
uint8_t dummy[56];
} dummy;
} u;
};
struct xen_pvcalls_response {
uint32_t req_id;
uint32_t cmd;
int32_t ret;
uint32_t pad;
union {
struct _xen_pvcalls_socket {
uint64_t id;
} socket;
struct _xen_pvcalls_connect {
uint64_t id;
} connect;
struct _xen_pvcalls_release {
uint64_t id;
} release;
struct _xen_pvcalls_bind {
uint64_t id;
} bind;
struct _xen_pvcalls_listen {
uint64_t id;
} listen;
struct _xen_pvcalls_accept {
uint64_t id;
} accept;
struct _xen_pvcalls_poll {
uint64_t id;
} poll;
struct _xen_pvcalls_dummy {
uint8_t dummy[8];
} dummy;
} u;
};
DEFINE_RING_TYPES(xen_pvcalls, struct xen_pvcalls_request,
struct xen_pvcalls_response);
#endif