[Qemu-devel] [RFC 1/2] linux-headers: add virtio vsock headers

[Stefan Hajnoczi]

Signed-off-by: Stefan Hajnoczi <address@hidden>
---
 include/standard-headers/linux/virtio_ids.h   |  1 +
 include/standard-headers/linux/virtio_vsock.h | 94 +++++++++++++++++++++++++++
 linux-headers/linux/vhost.h                   |  5 ++
 3 files changed, 100 insertions(+)
 create mode 100644 include/standard-headers/linux/virtio_vsock.h

diff --git a/include/standard-headers/linux/virtio_ids.h 
b/include/standard-headers/linux/virtio_ids.h
index 77925f5..3228d58 100644
--- a/include/standard-headers/linux/virtio_ids.h
+++ b/include/standard-headers/linux/virtio_ids.h
@@ -41,5 +41,6 @@
 #define VIRTIO_ID_CAIF        12 /* Virtio caif */
 #define VIRTIO_ID_GPU          16 /* virtio GPU */
 #define VIRTIO_ID_INPUT        18 /* virtio input */
+#define VIRTIO_ID_VSOCK        19 /* virtio vsock transport */
 
 #endif /* _LINUX_VIRTIO_IDS_H */
diff --git a/include/standard-headers/linux/virtio_vsock.h 
b/include/standard-headers/linux/virtio_vsock.h
new file mode 100644
index 0000000..be44321
--- /dev/null
+++ b/include/standard-headers/linux/virtio_vsock.h
@@ -0,0 +1,94 @@
+/*
+ * This header, excluding the #ifdef __KERNEL__ part, is BSD licensed so
+ * anyone can use the definitions to implement compatible drivers/servers:
+ *
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the name of IBM nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ``AS 
IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL IBM OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * Copyright (C) Red Hat, Inc., 2013-2015
+ * Copyright (C) Asias He <address@hidden>, 2013
+ * Copyright (C) Stefan Hajnoczi <address@hidden>, 2015
+ */
+
+#ifndef _LINUX_VIRTIO_VSOCK_H
+#define _LINUX_VIRTIO_VSOCK_H
+
+#include "standard-headers/linux/types.h"
+#include "standard-headers/linux/virtio_ids.h"
+#include "standard-headers/linux/virtio_config.h"
+
+struct virtio_vsock_config {
+       uint64_t guest_cid;
+} QEMU_PACKED;
+
+enum virtio_vsock_event_id {
+       VIRTIO_VSOCK_EVENT_TRANSPORT_RESET = 0,
+};
+
+struct virtio_vsock_event {
+       uint32_t id;
+} QEMU_PACKED;
+
+struct virtio_vsock_hdr {
+       uint64_t        src_cid;
+       uint64_t        dst_cid;
+       uint32_t        src_port;
+       uint32_t        dst_port;
+       uint32_t        len;
+       uint16_t        type;           /* enum virtio_vsock_type */
+       uint16_t        op;             /* enum virtio_vsock_op */
+       uint32_t        flags;
+       uint32_t        buf_alloc;
+       uint32_t        fwd_cnt;
+} QEMU_PACKED;
+
+enum virtio_vsock_type {
+       VIRTIO_VSOCK_TYPE_STREAM = 1,
+};
+
+enum virtio_vsock_op {
+       VIRTIO_VSOCK_OP_INVALID = 0,
+
+       /* Connect operations */
+       VIRTIO_VSOCK_OP_REQUEST = 1,
+       VIRTIO_VSOCK_OP_RESPONSE = 2,
+       VIRTIO_VSOCK_OP_RST = 3,
+       VIRTIO_VSOCK_OP_SHUTDOWN = 4,
+
+       /* To send payload */
+       VIRTIO_VSOCK_OP_RW = 5,
+
+       /* Tell the peer our credit info */
+       VIRTIO_VSOCK_OP_CREDIT_UPDATE = 6,
+       /* Request the peer to send the credit info to us */
+       VIRTIO_VSOCK_OP_CREDIT_REQUEST = 7,
+};
+
+/* VIRTIO_VSOCK_OP_SHUTDOWN flags values */
+enum virtio_vsock_shutdown {
+       VIRTIO_VSOCK_SHUTDOWN_RCV = 1,
+       VIRTIO_VSOCK_SHUTDOWN_SEND = 2,
+};
+
+#endif /* _LINUX_VIRTIO_VSOCK_H */
diff --git a/linux-headers/linux/vhost.h b/linux-headers/linux/vhost.h
index 571294c..81df17b 100644
--- a/linux-headers/linux/vhost.h
+++ b/linux-headers/linux/vhost.h
@@ -175,4 +175,9 @@ struct vhost_scsi_target {
 #define VHOST_SCSI_SET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x43, __u32)
 #define VHOST_SCSI_GET_EVENTS_MISSED _IOW(VHOST_VIRTIO, 0x44, __u32)
 
+/* VHOST_VSOCK specific defines */
+
+#define VHOST_VSOCK_SET_GUEST_CID      _IOW(VHOST_VIRTIO, 0x60, __u64)
+#define VHOST_VSOCK_SET_RUNNING                _IOW(VHOST_VIRTIO, 0x61, int)
+
 #endif
-- 
2.7.4