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-rw-r--r--include/xen/interface/io/pvcalls.h123
1 files changed, 123 insertions, 0 deletions
diff --git a/include/xen/interface/io/pvcalls.h b/include/xen/interface/io/pvcalls.h
new file mode 100644
index 000000000..b6680fdbe
--- /dev/null
+++ b/include/xen/interface/io/pvcalls.h
@@ -0,0 +1,123 @@
+/* SPDX-License-Identifier: MIT */
+
+#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