ia64/xen-unstable

view linux-2.6-xen-sparse/include/asm-ia64/hypervisor.h @ 14100:e47738923a05

[LINUX] Purge include <linux/config.h>. It has been obsolete for some time now.

Signed-off-by: Ian Campbell <ian.campbell@xensource.com>
author Ian Campbell <ian.campbell@xensource.com>
date Fri Feb 23 16:56:45 2007 +0000 (2007-02-23)
parents 105ac9be9b3d
children 8af1a8250c13
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/dom0_ops.h>
55 #include <xen/interface/event_channel.h>
56 #include <xen/interface/physdev.h>
57 #include <xen/interface/sched.h>
58 #include <asm/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 #ifndef CONFIG_VMX_GUEST
68 /* Turn jiffies into Xen system time. XXX Implement me. */
69 #define jiffies_to_st(j) 0
71 static inline int
72 HYPERVISOR_yield(
73 void)
74 {
75 int rc = HYPERVISOR_sched_op(SCHEDOP_yield, NULL);
77 return rc;
78 }
80 static inline int
81 HYPERVISOR_block(
82 void)
83 {
84 int rc = HYPERVISOR_sched_op(SCHEDOP_block, NULL);
86 return rc;
87 }
89 static inline int
90 HYPERVISOR_shutdown(
91 unsigned int reason)
92 {
93 struct sched_shutdown sched_shutdown = {
94 .reason = reason
95 };
97 int rc = HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown);
99 return rc;
100 }
102 static inline int
103 HYPERVISOR_poll(
104 evtchn_port_t *ports, unsigned int nr_ports, u64 timeout)
105 {
106 struct sched_poll sched_poll = {
107 .nr_ports = nr_ports,
108 .timeout = jiffies_to_st(timeout)
109 };
111 int rc;
113 set_xen_guest_handle(sched_poll.ports, ports);
114 rc = HYPERVISOR_sched_op(SCHEDOP_poll, &sched_poll);
116 return rc;
117 }
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 int __xen_create_contiguous_region(unsigned long vstart, unsigned int order, unsigned int address_bits);
149 static inline int
150 xen_create_contiguous_region(unsigned long vstart,
151 unsigned int order, unsigned int address_bits)
152 {
153 int ret = 0;
154 if (is_running_on_xen()) {
155 ret = __xen_create_contiguous_region(vstart, order,
156 address_bits);
157 }
158 return ret;
159 }
161 void __xen_destroy_contiguous_region(unsigned long vstart, unsigned int order);
162 static inline void
163 xen_destroy_contiguous_region(unsigned long vstart, unsigned int order)
164 {
165 if (is_running_on_xen())
166 __xen_destroy_contiguous_region(vstart, order);
167 }
169 #endif /* !CONFIG_VMX_GUEST */
171 // for netfront.c, netback.c
172 #define MULTI_UVMFLAGS_INDEX 0 //XXX any value
174 static inline void
175 MULTI_update_va_mapping(
176 multicall_entry_t *mcl, unsigned long va,
177 pte_t new_val, unsigned long flags)
178 {
179 mcl->op = __HYPERVISOR_update_va_mapping;
180 mcl->result = 0;
181 }
183 static inline void
184 MULTI_grant_table_op(multicall_entry_t *mcl, unsigned int cmd,
185 void *uop, unsigned int count)
186 {
187 mcl->op = __HYPERVISOR_grant_table_op;
188 mcl->args[0] = cmd;
189 mcl->args[1] = (unsigned long)uop;
190 mcl->args[2] = count;
191 }
193 /*
194 * for blktap.c
195 * int create_lookup_pte_addr(struct mm_struct *mm,
196 * unsigned long address,
197 * uint64_t *ptep);
198 */
199 #define create_lookup_pte_addr(mm, address, ptep) \
200 ({ \
201 printk(KERN_EMERG \
202 "%s:%d " \
203 "create_lookup_pte_addr() isn't supported.\n", \
204 __func__, __LINE__); \
205 BUG(); \
206 (-ENOSYS); \
207 })
209 // for debug
210 asmlinkage int xprintk(const char *fmt, ...);
211 #define xprintd(fmt, ...) xprintk("%s:%d " fmt, __func__, __LINE__, \
212 ##__VA_ARGS__)
214 #endif /* CONFIG_XEN || CONFIG_VMX_GUEST */
216 #ifdef CONFIG_XEN_PRIVILEGED_GUEST
217 #define is_initial_xendomain() \
218 (is_running_on_xen() ? xen_start_info->flags & SIF_INITDOMAIN : 0)
219 #else
220 #define is_initial_xendomain() 0
221 #endif
223 #endif /* __HYPERVISOR_H__ */