2bf62f9a89
This also fixes memory leakge if sub-connect messages are needed. MFC after: 1 week Sponsored by: Microsoft OSTC Differential Revision: https://reviews.freebsd.org/D6878
194 lines
5.3 KiB
C
194 lines
5.3 KiB
C
/*-
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* Copyright (c) 2016 Microsoft Corp.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _VMBUS_REG_H_
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#define _VMBUS_REG_H_
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#include <sys/param.h>
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#include <dev/hyperv/vmbus/hyperv_reg.h>
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/*
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* Hyper-V SynIC message format.
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*/
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#define VMBUS_MSG_DSIZE_MAX 240
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#define VMBUS_MSG_SIZE 256
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struct vmbus_message {
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uint32_t msg_type; /* HYPERV_MSGTYPE_ */
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uint8_t msg_dsize; /* data size */
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uint8_t msg_flags; /* VMBUS_MSGFLAG_ */
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uint16_t msg_rsvd;
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uint64_t msg_id;
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uint8_t msg_data[VMBUS_MSG_DSIZE_MAX];
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} __packed;
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CTASSERT(sizeof(struct vmbus_message) == VMBUS_MSG_SIZE);
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#define VMBUS_MSGFLAG_PENDING 0x01
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/*
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* Hyper-V SynIC event flags
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*/
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#ifdef __LP64__
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#define VMBUS_EVTFLAGS_MAX 32
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#define VMBUS_EVTFLAG_SHIFT 6
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#else
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#define VMBUS_EVTFLAGS_MAX 64
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#define VMBUS_EVTFLAG_SHIFT 5
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#endif
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#define VMBUS_EVTFLAG_LEN (1 << VMBUS_EVTFLAG_SHIFT)
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#define VMBUS_EVTFLAG_MASK (VMBUS_EVTFLAG_LEN - 1)
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#define VMBUS_EVTFLAGS_SIZE 256
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struct vmbus_evtflags {
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u_long evt_flags[VMBUS_EVTFLAGS_MAX];
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} __packed;
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CTASSERT(sizeof(struct vmbus_evtflags) == VMBUS_EVTFLAGS_SIZE);
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/*
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* Channel
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*/
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#define VMBUS_CHAN_MAX_COMPAT 256
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#define VMBUS_CHAN_MAX (VMBUS_EVTFLAG_LEN * VMBUS_EVTFLAGS_MAX)
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/*
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* GPA range.
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*/
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struct vmbus_gpa_range {
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uint32_t gpa_len;
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uint32_t gpa_ofs;
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uint64_t gpa_page[];
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} __packed;
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/*
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* Channel messages
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* - Embedded in vmbus_message.msg_data, e.g. response.
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* - Embedded in hypercall_postmsg_in.hc_data, e.g. request.
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*/
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#define VMBUS_CHANMSG_TYPE_CHANNEL_REQ 3 /* REQ */
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#define VMBUS_CHANMSG_TYPE_CHOPEN 5 /* REQ */
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#define VMBUS_CHANMSG_TYPE_CHOPEN_RESP 6 /* RESP */
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#define VMBUS_CHANMSG_TYPE_GPADL_CONN 8 /* REQ */
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#define VMBUS_CHANMSG_TYPE_GPADL_SUBCONN 9 /* REQ */
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#define VMBUS_CHANMSG_TYPE_GPADP_CONNRESP 10 /* RESP */
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#define VMBUS_CHANMSG_TYPE_INIT_CONTACT 14 /* REQ */
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#define VMBUS_CHANMSG_TYPE_VERSION_RESP 15 /* RESP */
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#define VMBUS_CHANMSG_TYPE_UNLOAD 16 /* REQ */
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struct vmbus_chanmsg_hdr {
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uint32_t chm_type; /* VMBUS_CHANMSG_TYPE_ */
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uint32_t chm_rsvd;
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} __packed;
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/* VMBUS_CHANMSG_TYPE_INIT_CONTACT */
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struct vmbus_chanmsg_init_contact {
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struct vmbus_chanmsg_hdr chm_hdr;
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uint32_t chm_ver;
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uint32_t chm_rsvd;
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uint64_t chm_evtflags;
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uint64_t chm_mnf1;
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uint64_t chm_mnf2;
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} __packed;
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/* VMBUS_CHANMSG_TYPE_VERSION_RESP */
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struct vmbus_chanmsg_version_resp {
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struct vmbus_chanmsg_hdr chm_hdr;
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uint8_t chm_supp;
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} __packed;
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/* VMBUS_CHANMSG_TYPE_CHANNEL_REQ */
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struct vmbus_chanmsg_channel_req {
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struct vmbus_chanmsg_hdr chm_hdr;
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} __packed;
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/* VMBUS_CHANMSG_TYPE_UNLOAD */
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struct vmbus_chanmsg_unload {
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struct vmbus_chanmsg_hdr chm_hdr;
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} __packed;
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/* VMBUS_CHANMSG_TYPE_CHOPEN */
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struct vmbus_chanmsg_chopen {
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struct vmbus_chanmsg_hdr chm_hdr;
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uint32_t chm_chanid;
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uint32_t chm_openid;
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uint32_t chm_gpadl;
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uint32_t chm_vcpuid;
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uint32_t chm_rxbr_pgofs;
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#define VMBUS_CHANMSG_CHOPEN_UDATA_SIZE 120
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uint8_t chm_udata[VMBUS_CHANMSG_CHOPEN_UDATA_SIZE];
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} __packed;
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/* VMBUS_CHANMSG_TYPE_CHOPEN_RESP */
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struct vmbus_chanmsg_chopen_resp {
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struct vmbus_chanmsg_hdr chm_hdr;
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uint32_t chm_chanid;
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uint32_t chm_openid;
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uint32_t chm_status;
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} __packed;
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/* VMBUS_CHANMSG_TYPE_GPADL_CONN */
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struct vmbus_chanmsg_gpadl_conn {
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struct vmbus_chanmsg_hdr chm_hdr;
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uint32_t chm_chanid;
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uint32_t chm_gpadl;
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uint16_t chm_range_len;
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uint16_t chm_range_cnt;
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struct vmbus_gpa_range chm_range;
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} __packed;
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#define VMBUS_CHANMSG_GPADL_CONN_PGMAX 26
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CTASSERT(__offsetof(struct vmbus_chanmsg_gpadl_conn,
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chm_range.gpa_page[VMBUS_CHANMSG_GPADL_CONN_PGMAX]) <=
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HYPERCALL_POSTMSGIN_DSIZE_MAX);
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/* VMBUS_CHANMSG_TYPE_GPADL_SUBCONN */
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struct vmbus_chanmsg_gpadl_subconn {
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struct vmbus_chanmsg_hdr chm_hdr;
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uint32_t chm_msgno;
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uint32_t chm_gpadl;
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uint64_t chm_gpa_page[];
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} __packed;
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#define VMBUS_CHANMSG_GPADL_SUBCONN_PGMAX 28
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CTASSERT(__offsetof(struct vmbus_chanmsg_gpadl_subconn,
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chm_gpa_page[VMBUS_CHANMSG_GPADL_SUBCONN_PGMAX]) <=
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HYPERCALL_POSTMSGIN_DSIZE_MAX);
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/* VMBUS_CHANMSG_TYPE_GPADL_CONNRESP */
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struct vmbus_chanmsg_gpadl_connresp {
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struct vmbus_chanmsg_hdr chm_hdr;
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uint32_t chm_chanid;
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uint32_t chm_gpadl;
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uint32_t chm_status;
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} __packed;
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#endif /* !_VMBUS_REG_H_ */
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