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hypervisor.h
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1 /******************************************************************************
2  * hypervisor.h
3  *
4  * Linux-specific hypervisor handling.
5  *
6  * Copyright (c) 2002-2004, K A Fraser
7  *
8  * This program is free software; you can redistribute it and/or
9  * modify it under the terms of the GNU General Public License version 2
10  * as published by the Free Software Foundation; or, when distributed
11  * separately from the Linux kernel or incorporated into other
12  * software packages, subject to the following license:
13  *
14  * Permission is hereby granted, free of charge, to any person obtaining a copy
15  * of this source file (the "Software"), to deal in the Software without
16  * restriction, including without limitation the rights to use, copy, modify,
17  * merge, publish, distribute, sublicense, and/or sell copies of the Software,
18  * and to permit persons to whom the Software is furnished to do so, subject to
19  * the following conditions:
20  *
21  * The above copyright notice and this permission notice shall be included in
22  * all copies or substantial portions of the Software.
23  *
24  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
25  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
26  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
27  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
28  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
29  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
30  * IN THE SOFTWARE.
31  */
32 
33 #ifndef _ASM_IA64_XEN_HYPERVISOR_H
34 #define _ASM_IA64_XEN_HYPERVISOR_H
35 
36 #include <linux/err.h>
37 #include <xen/interface/xen.h>
38 #include <xen/interface/version.h> /* to compile feature.c */
39 #include <xen/features.h> /* to comiple xen-netfront.c */
40 #include <xen/xen.h>
41 #include <asm/xen/hypercall.h>
42 
43 #ifdef CONFIG_XEN
44 extern struct shared_info *HYPERVISOR_shared_info;
45 extern struct start_info *xen_start_info;
46 
48 void force_evtchn_callback(void);
49 
50 /* for drivers/xen/balloon/balloon.c */
51 #ifdef CONFIG_XEN_SCRUB_PAGES
52 #define scrub_pages(_p, _n) memset((void *)(_p), 0, (_n) << PAGE_SHIFT)
53 #else
54 #define scrub_pages(_p, _n) ((void)0)
55 #endif
56 
57 /* For setup_arch() in arch/ia64/kernel/setup.c */
59 #endif
60 
61 #endif /* _ASM_IA64_XEN_HYPERVISOR_H */