[GitHub/mt8127/android_kernel_alcatel_ttab.git] / drivers / staging / hv / hyperv.h

/*
 *
 * Copyright (c) 2011, Microsoft Corporation.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 * more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
 * Place - Suite 330, Boston, MA 02111-1307 USA.
 *
 * Authors:
 *   Haiyang Zhang <haiyangz@microsoft.com>
 *   Hank Janssen  <hjanssen@microsoft.com>
 *   K. Y. Srinivasan <kys@microsoft.com>
 *
 */

#ifndef _HYPERV_H
#define _HYPERV_H

struct hv_guid {
	unsigned char data[16];
};

#define MAX_PAGE_BUFFER_COUNT				16
#define MAX_MULTIPAGE_BUFFER_COUNT			32 /* 128K */

#pragma pack(push, 1)

/* Single-page buffer */
struct hv_page_buffer {
	u32 len;
	u32 offset;
	u64 pfn;
};

/* Multiple-page buffer */
struct hv_multipage_buffer {
	/* Length and Offset determines the # of pfns in the array */
	u32 len;
	u32 offset;
	u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT];
};

/* 0x18 includes the proprietary packet header */
#define MAX_PAGE_BUFFER_PACKET		(0x18 +			\
					(sizeof(struct hv_page_buffer) * \
					 MAX_PAGE_BUFFER_COUNT))
#define MAX_MULTIPAGE_BUFFER_PACKET	(0x18 +			\
					 sizeof(struct hv_multipage_buffer))


#pragma pack(pop)


#endif /* _HYPERV_H */
Commit	Line	Data
5c473400 S	1	/*
	2	*
	3	* Copyright (c) 2011, Microsoft Corporation.
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms and conditions of the GNU General Public License,
	7	* version 2, as published by the Free Software Foundation.
	8	*
	9	* This program is distributed in the hope it will be useful, but WITHOUT
	10	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	11	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	12	* more details.
	13	*
	14	* You should have received a copy of the GNU General Public License along with
	15	* this program; if not, write to the Free Software Foundation, Inc., 59 Temple
	16	* Place - Suite 330, Boston, MA 02111-1307 USA.
	17	*
	18	* Authors:
	19	* Haiyang Zhang <haiyangz@microsoft.com>
	20	* Hank Janssen <hjanssen@microsoft.com>
	21	* K. Y. Srinivasan <kys@microsoft.com>
	22	*
	23	*/
3f335ea2 S	24
	25	#ifndef _HYPERV_H
	26	#define _HYPERV_H
	27
	28	struct hv_guid {
	29	unsigned char data[16];
	30	};
	31
a363bf7b S	32	#define MAX_PAGE_BUFFER_COUNT 16
	33	#define MAX_MULTIPAGE_BUFFER_COUNT 32 /* 128K */
	34
	35	#pragma pack(push, 1)
	36
	37	/* Single-page buffer */
	38	struct hv_page_buffer {
	39	u32 len;
	40	u32 offset;
	41	u64 pfn;
	42	};
	43
	44	/* Multiple-page buffer */
	45	struct hv_multipage_buffer {
	46	/* Length and Offset determines the # of pfns in the array */
	47	u32 len;
	48	u32 offset;
	49	u64 pfn_array[MAX_MULTIPAGE_BUFFER_COUNT];
	50	};
	51
	52	/* 0x18 includes the proprietary packet header */
	53	#define MAX_PAGE_BUFFER_PACKET (0x18 + \
	54	(sizeof(struct hv_page_buffer) * \
	55	MAX_PAGE_BUFFER_COUNT))
	56	#define MAX_MULTIPAGE_BUFFER_PACKET (0x18 + \
	57	sizeof(struct hv_multipage_buffer))
	58
	59
	60	#pragma pack(pop)
	61
3f335ea2 S	62
3f335ea2 S	63	#endif /* _HYPERV_H */