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/******************************************************************************
*
* Copyright (c) 2009 Citrix Systems, Inc. (Grzegorz Milos)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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
*/
#ifndef __MEMSHR_H__
#define __MEMSHR_H__
#include <stdint.h>
#include <xen/xen.h>
#include <xen/grant_table.h>
typedef uint64_t xen_mfn_t;
typedef struct share_tuple
{
uint32_t domain;
uint64_t frame;
uint64_t handle;
} share_tuple_t;
extern void memshr_set_domid(int domid);
extern void memshr_daemon_initialize(void);
extern void memshr_vbd_initialize(void);
extern uint16_t memshr_vbd_image_get(const char* file);
extern void memshr_vbd_image_put(uint16_t memshr_id);
extern int memshr_vbd_issue_ro_request(char *buf,
grant_ref_t gref,
uint16_t file_id,
uint64_t sec,
int secs,
share_tuple_t *hnd);
extern void memshr_vbd_complete_ro_request(
share_tuple_t hnd,
uint16_t file_id,
uint64_t sec,
int secs);
#endif /* __MEMSHR_H__ */
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