39c4e9c378
The Time Sync feature synchronizes guest time to host UTC time after reboot, and restore from saved/paused state. Signed-off-by: Hank Janssen <hjanssen@microsoft.com> Signed-off-by: Haiyang Zhang <haiyangz@microsoft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
117 lines
2.9 KiB
C
117 lines
2.9 KiB
C
/*
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* Copyright (c) 2009, Microsoft Corporation.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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* Place - Suite 330, Boston, MA 02111-1307 USA.
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*
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* Authors:
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* Haiyang Zhang <haiyangz@microsoft.com>
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* Hank Janssen <hjanssen@microsoft.com>
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*/
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#ifndef __HV_UTILS_H_
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#define __HV_UTILS_H_
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/*
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* Common header for Hyper-V ICs
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*/
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#define ICMSGTYPE_NEGOTIATE 0
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#define ICMSGTYPE_HEARTBEAT 1
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#define ICMSGTYPE_KVPEXCHANGE 2
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#define ICMSGTYPE_SHUTDOWN 3
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#define ICMSGTYPE_TIMESYNC 4
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#define ICMSGTYPE_VSS 5
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#define ICMSGHDRFLAG_TRANSACTION 1
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#define ICMSGHDRFLAG_REQUEST 2
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#define ICMSGHDRFLAG_RESPONSE 4
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#define HV_S_OK 0x00000000
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#define HV_E_FAIL 0x80004005
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#define HV_ERROR_NOT_SUPPORTED 0x80070032
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#define HV_ERROR_MACHINE_LOCKED 0x800704F7
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struct vmbuspipe_hdr {
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u32 flags;
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u32 msgsize;
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} __attribute__((packed));
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struct ic_version {
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u16 major;
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u16 minor;
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} __attribute__((packed));
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struct icmsg_hdr {
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struct ic_version icverframe;
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u16 icmsgtype;
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struct ic_version icvermsg;
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u16 icmsgsize;
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u32 status;
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u8 ictransaction_id;
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u8 icflags;
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u8 reserved[2];
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} __attribute__((packed));
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struct icmsg_negotiate {
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u16 icframe_vercnt;
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u16 icmsg_vercnt;
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u32 reserved;
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struct ic_version icversion_data[1]; /* any size array */
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} __attribute__((packed));
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struct shutdown_msg_data {
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u32 reason_code;
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u32 timeout_seconds;
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u32 flags;
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u8 display_message[2048];
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} __attribute__((packed));
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/* Time Sync IC defs */
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#define ICTIMESYNCFLAG_PROBE 0
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#define ICTIMESYNCFLAG_SYNC 1
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#define ICTIMESYNCFLAG_SAMPLE 2
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#ifdef __x86_64__
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#define WLTIMEDELTA 116444736000000000L /* in 100ns unit */
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#else
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#define WLTIMEDELTA 116444736000000000LL
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#endif
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typedef u64 winfiletime_t; /* Windows FILETIME type */
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struct ictimesync_data{
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winfiletime_t parenttime;
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winfiletime_t childtime;
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winfiletime_t roundtriptime;
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u8 flags;
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} __attribute__((packed));
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/* Index for each IC struct in array hv_cb_utils[] */
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#define HV_SHUTDOWN_MSG 0
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#define HV_TIMESYNC_MSG 1
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struct hyperv_service_callback {
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u8 msg_type;
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char *log_msg;
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unsigned char data[16];
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struct vmbus_channel *channel;
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void (*callback) (void *context);
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};
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extern void prep_negotiate_resp(struct icmsg_hdr *,
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struct icmsg_negotiate *, u8 *);
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extern void chn_cb_negotiate(void *);
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extern struct hyperv_service_callback hv_cb_utils[];
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#endif /* __HV_UTILS_H_ */
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