ia64/xen-unstable

view linux-2.6-xen-sparse/include/asm-ia64/hypervisor.h @ 15143:e54da168363a

[IA64] Trivial warning fix

contiguous_bitmap_init has implicit declaration

Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp>
author Alex Williamson <alex.williamson@hp.com>
date Fri May 25 09:40:43 2007 -0600 (2007-05-25)
parents 3ecf1cea58b1
children
line source
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 */
33 #ifndef __HYPERVISOR_H__
34 #define __HYPERVISOR_H__
36 #ifdef CONFIG_XEN
37 extern int running_on_xen;
38 #define is_running_on_xen() (running_on_xen)
39 #else /* CONFIG_XEN */
40 # ifdef CONFIG_VMX_GUEST
41 # define is_running_on_xen() (1)
42 # else /* CONFIG_VMX_GUEST */
43 # define is_running_on_xen() (0)
44 # define HYPERVISOR_ioremap(offset, size) (offset)
45 # endif /* CONFIG_VMX_GUEST */
46 #endif /* CONFIG_XEN */
48 #if defined(CONFIG_XEN) || defined(CONFIG_VMX_GUEST)
49 #include <linux/types.h>
50 #include <linux/kernel.h>
51 #include <linux/version.h>
52 #include <linux/errno.h>
53 #include <xen/interface/xen.h>
54 #include <xen/interface/platform.h>
55 #include <xen/interface/event_channel.h>
56 #include <xen/interface/physdev.h>
57 #include <xen/interface/sched.h>
58 #include <xen/hypercall.h>
59 #include <asm/ptrace.h>
60 #include <asm/page.h>
62 extern shared_info_t *HYPERVISOR_shared_info;
63 extern start_info_t *xen_start_info;
65 void force_evtchn_callback(void);
67 /* Turn jiffies into Xen system time. XXX Implement me. */
68 #define jiffies_to_st(j) 0
70 static inline int
71 HYPERVISOR_yield(
72 void)
73 {
74 int rc = HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
76 return rc;
77 }
79 static inline int
80 HYPERVISOR_block(
81 void)
82 {
83 int rc = HYPERVISOR_sched_op(SCHEDOP_block, NULL);
85 return rc;
86 }
88 static inline int
89 HYPERVISOR_shutdown(
90 unsigned int reason)
91 {
92 struct sched_shutdown sched_shutdown = {
93 .reason = reason
94 };
96 int rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown);
98 return rc;
99 }
101 static inline int
102 HYPERVISOR_poll(
103 evtchn_port_t *ports, unsigned int nr_ports, u64 timeout)
104 {
105 struct sched_poll sched_poll = {
106 .nr_ports = nr_ports,
107 .timeout = jiffies_to_st(timeout)
108 };
110 int rc;
112 set_xen_guest_handle(sched_poll.ports, ports);
113 rc = HYPERVISOR_sched_op(SCHEDOP_poll, &sched_poll);
115 return rc;
116 }
118 #ifndef CONFIG_VMX_GUEST
119 // for drivers/xen/privcmd/privcmd.c
120 #define machine_to_phys_mapping 0
121 struct vm_area_struct;
122 int direct_remap_pfn_range(struct vm_area_struct *vma,
123 unsigned long address,
124 unsigned long mfn,
125 unsigned long size,
126 pgprot_t prot,
127 domid_t domid);
128 struct file;
129 int privcmd_enforce_singleshot_mapping(struct vm_area_struct *vma);
130 int privcmd_mmap(struct file * file, struct vm_area_struct * vma);
131 #define HAVE_ARCH_PRIVCMD_MMAP
133 // for drivers/xen/balloon/balloon.c
134 #ifdef CONFIG_XEN_SCRUB_PAGES
135 #define scrub_pages(_p,_n) memset((void *)(_p), 0, (_n) << PAGE_SHIFT)
136 #else
137 #define scrub_pages(_p,_n) ((void)0)
138 #endif
139 #define pte_mfn(_x) pte_pfn(_x)
140 #define phys_to_machine_mapping_valid(_x) (1)
142 #endif /* !CONFIG_VMX_GUEST */
144 #define __pte_ma(_x) ((pte_t) {(_x)}) /* unmodified use */
145 #define pfn_pte_ma(_x,_y) __pte_ma(0) /* unmodified use */
147 #ifndef CONFIG_VMX_GUEST
148 void xen_contiguous_bitmap_init(unsigned long end_pfn);
149 int __xen_create_contiguous_region(unsigned long vstart, unsigned int order, unsigned int address_bits);
150 static inline int
151 xen_create_contiguous_region(unsigned long vstart,
152 unsigned int order, unsigned int address_bits)
153 {
154 int ret = 0;
155 if (is_running_on_xen()) {
156 ret = __xen_create_contiguous_region(vstart, order,
157 address_bits);
158 }
159 return ret;
160 }
162 void __xen_destroy_contiguous_region(unsigned long vstart, unsigned int order);
163 static inline void
164 xen_destroy_contiguous_region(unsigned long vstart, unsigned int order)
165 {
166 if (is_running_on_xen())
167 __xen_destroy_contiguous_region(vstart, order);
168 }
170 /* For drivers/xen/core/machine_reboot.c */
171 #define HAVE_XEN_POST_SUSPEND
172 void xen_post_suspend(int suspend_cancelled);
173 #endif /* !CONFIG_VMX_GUEST */
175 // for netfront.c, netback.c
176 #define MULTI_UVMFLAGS_INDEX 0 //XXX any value
178 static inline void
179 MULTI_update_va_mapping(
180 multicall_entry_t *mcl, unsigned long va,
181 pte_t new_val, unsigned long flags)
182 {
183 mcl->op = __HYPERVISOR_update_va_mapping;
184 mcl->result = 0;
185 }
187 static inline void
188 MULTI_grant_table_op(multicall_entry_t *mcl, unsigned int cmd,
189 void *uop, unsigned int count)
190 {
191 mcl->op = __HYPERVISOR_grant_table_op;
192 mcl->args[0] = cmd;
193 mcl->args[1] = (unsigned long)uop;
194 mcl->args[2] = count;
195 }
197 /*
198 * for blktap.c
199 * int create_lookup_pte_addr(struct mm_struct *mm,
200 * unsigned long address,
201 * uint64_t *ptep);
202 */
203 #define create_lookup_pte_addr(mm, address, ptep) \
204 ({ \
205 printk(KERN_EMERG \
206 "%s:%d " \
207 "create_lookup_pte_addr() isn't supported.\n", \
208 __func__, __LINE__); \
209 BUG(); \
210 (-ENOSYS); \
211 })
213 // for debug
214 asmlinkage int xprintk(const char *fmt, ...);
215 #define xprintd(fmt, ...) xprintk("%s:%d " fmt, __func__, __LINE__, \
216 ##__VA_ARGS__)
218 #endif /* CONFIG_XEN || CONFIG_VMX_GUEST */
220 #ifdef CONFIG_XEN_PRIVILEGED_GUEST
221 #define is_initial_xendomain() \
222 (is_running_on_xen() ? xen_start_info->flags & SIF_INITDOMAIN : 0)
223 #else
224 #define is_initial_xendomain() 0
225 #endif
227 #endif /* __HYPERVISOR_H__ */