1 files changed, 56 insertions, 0 deletions
diff --git a/sys/dev/hyperv/utilities/hv_snapshot.h b/sys/dev/hyperv/utilities/hv_snapshot.h
new file mode 100644
index 0000000..e3c9e0c
--- /dev/null
+++ b/sys/dev/hyperv/utilities/hv_snapshot.h
@@ -0,0 +1,56 @@
+/*-
+ * 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 _VSS_H
+#define _VSS_H
+#include <sys/ioccom.h>
+#define FS_VSS_DEV_NAME		"hv_fsvss_dev"
+#define APP_VSS_DEV_NAME	"hv_appvss_dev"
+
+#define VSS_DEV(VSS)		"/dev/"VSS
+
+#define VSS_SUCCESS		0x00000000
+#define VSS_FAIL		0x00000001
+
+enum hv_vss_op_t {
+	HV_VSS_NONE = 0,
+	HV_VSS_CHECK,
+	HV_VSS_FREEZE,
+	HV_VSS_THAW,
+	HV_VSS_COUNT
+};
+
+struct hv_vss_opt_msg {
+	uint32_t	opt;		/* operation */
+	uint32_t	status;		/* 0 for success, 1 for error */
+	uint64_t	msgid;		/* an ID used to identify the transaction */
+	uint8_t		reserved[48];	/* reserved values are all zeroes */
+};
+#define IOCHVVSSREAD		_IOR('v', 2, struct hv_vss_opt_msg)
+#define IOCHVVSSWRITE		_IOW('v', 3, struct hv_vss_opt_msg)
+#endif