diff options
Diffstat (limited to 'sys/dev/hyperv/utilities/vmbus_icreg.h')
| -rw-r--r-- | sys/dev/hyperv/utilities/vmbus_icreg.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/sys/dev/hyperv/utilities/vmbus_icreg.h b/sys/dev/hyperv/utilities/vmbus_icreg.h new file mode 100644 index 000000000000..38643e3dcab0 --- /dev/null +++ b/sys/dev/hyperv/utilities/vmbus_icreg.h @@ -0,0 +1,94 @@ +/*- + * Copyright (c) 2016 Microsoft Corp. + * All rights reserved. + * + * 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 unmodified, 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. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 THE AUTHOR 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. + * + * $FreeBSD$ + */ + +#ifndef _VMBUS_ICREG_H_ +#define _VMBUS_ICREG_H_ + +#define VMBUS_ICMSG_TYPE_NEGOTIATE 0 +#define VMBUS_ICMSG_TYPE_HEARTBEAT 1 +#define VMBUS_ICMSG_TYPE_KVP 2 +#define VMBUS_ICMSG_TYPE_SHUTDOWN 3 +#define VMBUS_ICMSG_TYPE_TIMESYNC 4 +#define VMBUS_ICMSG_TYPE_VSS 5 + +#define VMBUS_ICMSG_STATUS_OK 0x00000000 +#define VMBUS_ICMSG_STATUS_FAIL 0x80004005 + +#define VMBUS_IC_VERSION(major, minor) ((major) | (((uint32_t)(minor)) << 16)) +#define VMBUS_ICVER_MAJOR(ver) ((ver) & 0xffff) +#define VMBUS_ICVER_MINOR(ver) (((ver) & 0xffff0000) >> 16) + +struct vmbus_pipe_hdr { + uint32_t ph_flags; + uint32_t ph_msgsz; +} __packed; + +struct vmbus_icmsg_hdr { + struct vmbus_pipe_hdr ic_pipe; + uint32_t ic_fwver; /* framework version */ + uint16_t ic_type; + uint32_t ic_msgver; /* message version */ + uint16_t ic_dsize; /* data size */ + uint32_t ic_status; /* VMBUS_ICMSG_STATUS_ */ + uint8_t ic_xactid; + uint8_t ic_flags; /* VMBUS_ICMSG_FLAG_ */ + uint8_t ic_rsvd[2]; +} __packed; + +#define VMBUS_ICMSG_FLAG_XACT 0x0001 +#define VMBUS_ICMSG_FLAG_REQ 0x0002 +#define VMBUS_ICMSG_FLAG_RESP 0x0004 + +/* VMBUS_ICMSG_TYPE_NEGOTIATE */ +struct vmbus_icmsg_negotiate { + struct vmbus_icmsg_hdr ic_hdr; + uint16_t ic_fwver_cnt; + uint16_t ic_msgver_cnt; + uint32_t ic_rsvd; + /* + * This version array contains two set of supported + * versions: + * - The first set consists of #ic_fwver_cnt supported framework + * versions. + * - The second set consists of #ic_msgver_cnt supported message + * versions. + */ + uint32_t ic_ver[]; +} __packed; + +/* VMBUS_ICMSG_TYPE_HEARTBEAT */ +struct vmbus_icmsg_heartbeat { + struct vmbus_icmsg_hdr ic_hdr; + uint64_t ic_seq; + uint32_t ic_rsvd[8]; +} __packed; + +#define VMBUS_ICMSG_HEARTBEAT_SIZE_MIN \ + __offsetof(struct vmbus_icmsg_heartbeat, ic_rsvd[0]) + +#endif /* !_VMBUS_ICREG_H_ */ |