/*
*
* 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
#include <uapi/linux/hyperv.h>
#include <uapi/asm/hyperv.h>
#include <linux/types.h>
#include <linux/scatterlist.h>
#include <linux/list.h>
#include <linux/timer.h>
#include <linux/completion.h>
#include <linux/device.h>
#include <linux/mod_devicetable.h>
#include <linux/interrupt.h>
#define MAX_PAGE_BUFFER_COUNT 32
#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];
};
/*
* Multiple-page buffer array; the pfn array is variable size:
* The number of entries in the PFN array is determined by
* "len" and "offset".
*/
struct hv_mpb_array {
/* Length and Offset determines the # of pfns in the array */
u32 len;
u32 offset;
u64 pfn_array[];
};
/* 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))
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