ia64/xen-unstable

view xen/include/public/callback.h @ 19836:d9890e67d2b7

tools: add SHAREDIR to buildmakevars2file

c/s 19818 dropped SHAREDIR from xen/util/path.py, which broke the "xm
new" command. This patch adds SHAREDIR back to the new
buildmakevars2file-closure function.

Signed-off-by: Ryan O'Connor <rjo@cs.ubc.ca>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Jun 25 13:05:10 2009 +0100 (2009-06-25)
parents 185a13c03255
children
line source
1 /******************************************************************************
2 * callback.h
3 *
4 * Register guest OS callbacks with Xen.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to
8 * deal in the Software without restriction, including without limitation the
9 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
10 * sell copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Copyright (c) 2006, Ian Campbell
25 */
27 #ifndef __XEN_PUBLIC_CALLBACK_H__
28 #define __XEN_PUBLIC_CALLBACK_H__
30 #include "xen.h"
32 /*
33 * Prototype for this hypercall is:
34 * long callback_op(int cmd, void *extra_args)
35 * @cmd == CALLBACKOP_??? (callback operation).
36 * @extra_args == Operation-specific extra arguments (NULL if none).
37 */
39 /* ia64, x86: Callback for event delivery. */
40 #define CALLBACKTYPE_event 0
42 /* x86: Failsafe callback when guest state cannot be restored by Xen. */
43 #define CALLBACKTYPE_failsafe 1
45 /* x86/64 hypervisor: Syscall by 64-bit guest app ('64-on-64-on-64'). */
46 #define CALLBACKTYPE_syscall 2
48 /*
49 * x86/32 hypervisor: Only available on x86/32 when supervisor_mode_kernel
50 * feature is enabled. Do not use this callback type in new code.
51 */
52 #define CALLBACKTYPE_sysenter_deprecated 3
54 /* x86: Callback for NMI delivery. */
55 #define CALLBACKTYPE_nmi 4
57 /*
58 * x86: sysenter is only available as follows:
59 * - 32-bit hypervisor: with the supervisor_mode_kernel feature enabled
60 * - 64-bit hypervisor: 32-bit guest applications on Intel CPUs
61 * ('32-on-32-on-64', '32-on-64-on-64')
62 * [nb. also 64-bit guest applications on Intel CPUs
63 * ('64-on-64-on-64'), but syscall is preferred]
64 */
65 #define CALLBACKTYPE_sysenter 5
67 /*
68 * x86/64 hypervisor: Syscall by 32-bit guest app on AMD CPUs
69 * ('32-on-32-on-64', '32-on-64-on-64')
70 */
71 #define CALLBACKTYPE_syscall32 7
73 /*
74 * Disable event deliver during callback? This flag is ignored for event and
75 * NMI callbacks: event delivery is unconditionally disabled.
76 */
77 #define _CALLBACKF_mask_events 0
78 #define CALLBACKF_mask_events (1U << _CALLBACKF_mask_events)
80 /*
81 * Register a callback.
82 */
83 #define CALLBACKOP_register 0
84 struct callback_register {
85 uint16_t type;
86 uint16_t flags;
87 xen_callback_t address;
88 };
89 typedef struct callback_register callback_register_t;
90 DEFINE_XEN_GUEST_HANDLE(callback_register_t);
92 /*
93 * Unregister a callback.
94 *
95 * Not all callbacks can be unregistered. -EINVAL will be returned if
96 * you attempt to unregister such a callback.
97 */
98 #define CALLBACKOP_unregister 1
99 struct callback_unregister {
100 uint16_t type;
101 uint16_t _unused;
102 };
103 typedef struct callback_unregister callback_unregister_t;
104 DEFINE_XEN_GUEST_HANDLE(callback_unregister_t);
106 #if __XEN_INTERFACE_VERSION__ < 0x00030207
107 #undef CALLBACKTYPE_sysenter
108 #define CALLBACKTYPE_sysenter CALLBACKTYPE_sysenter_deprecated
109 #endif
111 #endif /* __XEN_PUBLIC_CALLBACK_H__ */
113 /*
114 * Local variables:
115 * mode: C
116 * c-set-style: "BSD"
117 * c-basic-offset: 4
118 * tab-width: 4
119 * indent-tabs-mode: nil
120 * End:
121 */