1 #ifndef __XEN_PUBLIC_IO_XEN_PVCALLS_H__ 2 #define __XEN_PUBLIC_IO_XEN_PVCALLS_H__ 3 4 #include <linux/net.h> 5 #include <xen/interface/io/ring.h> 6 #include <xen/interface/grant_table.h> 7 8 /* "1" means socket, connect, release, bind, listen, accept and poll */ 9 #define XENBUS_FUNCTIONS_CALLS "1" 10 11 /* 12 * See docs/misc/pvcalls.markdown in xen.git for the full specification: 13 * https://xenbits.xen.org/docs/unstable/misc/pvcalls.html 14 */ 15 struct pvcalls_data_intf { 16 RING_IDX in_cons, in_prod, in_error; 17 18 uint8_t pad1[52]; 19 20 RING_IDX out_cons, out_prod, out_error; 21 22 uint8_t pad2[52]; 23 24 RING_IDX ring_order; 25 grant_ref_t ref[]; 26 }; 27 DEFINE_XEN_FLEX_RING(pvcalls); 28 29 #define PVCALLS_SOCKET 0 30 #define PVCALLS_CONNECT 1 31 #define PVCALLS_RELEASE 2 32 #define PVCALLS_BIND 3 33 #define PVCALLS_LISTEN 4 34 #define PVCALLS_ACCEPT 5 35 #define PVCALLS_POLL 6 36 37 struct xen_pvcalls_request { 38 uint32_t req_id; /* private to guest, echoed in response */ 39 uint32_t cmd; /* command to execute */ 40 union { 41 struct xen_pvcalls_socket { 42 uint64_t id; 43 uint32_t domain; 44 uint32_t type; 45 uint32_t protocol; 46 } socket; 47 struct xen_pvcalls_connect { 48 uint64_t id; 49 uint8_t addr[28]; 50 uint32_t len; 51 uint32_t flags; 52 grant_ref_t ref; 53 uint32_t evtchn; 54 } connect; 55 struct xen_pvcalls_release { 56 uint64_t id; 57 uint8_t reuse; 58 } release; 59 struct xen_pvcalls_bind { 60 uint64_t id; 61 uint8_t addr[28]; 62 uint32_t len; 63 } bind; 64 struct xen_pvcalls_listen { 65 uint64_t id; 66 uint32_t backlog; 67 } listen; 68 struct xen_pvcalls_accept { 69 uint64_t id; 70 uint64_t id_new; 71 grant_ref_t ref; 72 uint32_t evtchn; 73 } accept; 74 struct xen_pvcalls_poll { 75 uint64_t id; 76 } poll; 77 /* dummy member to force sizeof(struct xen_pvcalls_request) 78 * to match across archs */ 79 struct xen_pvcalls_dummy { 80 uint8_t dummy[56]; 81 } dummy; 82 } u; 83 }; 84 85 struct xen_pvcalls_response { 86 uint32_t req_id; 87 uint32_t cmd; 88 int32_t ret; 89 uint32_t pad; 90 union { 91 struct _xen_pvcalls_socket { 92 uint64_t id; 93 } socket; 94 struct _xen_pvcalls_connect { 95 uint64_t id; 96 } connect; 97 struct _xen_pvcalls_release { 98 uint64_t id; 99 } release; 100 struct _xen_pvcalls_bind { 101 uint64_t id; 102 } bind; 103 struct _xen_pvcalls_listen { 104 uint64_t id; 105 } listen; 106 struct _xen_pvcalls_accept { 107 uint64_t id; 108 } accept; 109 struct _xen_pvcalls_poll { 110 uint64_t id; 111 } poll; 112 struct _xen_pvcalls_dummy { 113 uint8_t dummy[8]; 114 } dummy; 115 } u; 116 }; 117 118 DEFINE_RING_TYPES(xen_pvcalls, struct xen_pvcalls_request, 119 struct xen_pvcalls_response); 120 121 #endif 122