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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 __HYPERVISOR_H__
34#define __HYPERVISOR_H__
35
36#include <linux/types.h>
37#include <linux/kernel.h>
38#include <linux/version.h>
39
40#include <xen/interface/xen.h>
41#include <xen/interface/version.h>
42
43#include <asm/ptrace.h>
44#include <asm/page.h>
45#include <asm/desc.h>
46#if defined(__i386__)
47# ifdef CONFIG_X86_PAE
48# include <asm-generic/pgtable-nopud.h>
49# else
50# include <asm-generic/pgtable-nopmd.h>
51# endif
52#endif
53#include <asm/xen/hypercall.h>
54
55/* arch/i386/kernel/setup.c */
56extern struct shared_info *HYPERVISOR_shared_info;
57extern struct start_info *xen_start_info;
58#define is_initial_xendomain() (xen_start_info->flags & SIF_INITDOMAIN)
59
60/* arch/i386/mach-xen/evtchn.c */
61/* Force a proper event-channel callback from Xen. */
62extern void force_evtchn_callback(void);
63
64/* Turn jiffies into Xen system time. */
65u64 jiffies_to_st(unsigned long jiffies);
66
67
68#define MULTI_UVMFLAGS_INDEX 3
69#define MULTI_UVMDOMID_INDEX 4
70
71#define is_running_on_xen() (xen_start_info ? 1 : 0)
72
73#endif /* __HYPERVISOR_H__ */