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