win-pvdrivers

view common/include/public/features.h @ 12:5712dede5a1b

add in xen public includes, so the extra step of copying them over is not needed
author Andy Grover <andy@groveronline.com>
date Wed Nov 28 14:44:10 2007 -0800 (2007-11-28)
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1 /******************************************************************************
2 * features.h
3 *
4 * Feature flags, reported by XENVER_get_features.
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, Keir Fraser <keir@xensource.com>
25 */
27 #ifndef __XEN_PUBLIC_FEATURES_H__
28 #define __XEN_PUBLIC_FEATURES_H__
30 /*
31 * If set, the guest does not need to write-protect its pagetables, and can
32 * update them via direct writes.
33 */
34 #define XENFEAT_writable_page_tables 0
36 /*
37 * If set, the guest does not need to write-protect its segment descriptor
38 * tables, and can update them via direct writes.
39 */
40 #define XENFEAT_writable_descriptor_tables 1
42 /*
43 * If set, translation between the guest's 'pseudo-physical' address space
44 * and the host's machine address space are handled by the hypervisor. In this
45 * mode the guest does not need to perform phys-to/from-machine translations
46 * when performing page table operations.
47 */
48 #define XENFEAT_auto_translated_physmap 2
50 /* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */
51 #define XENFEAT_supervisor_mode_kernel 3
53 /*
54 * If set, the guest does not need to allocate x86 PAE page directories
55 * below 4GB. This flag is usually implied by auto_translated_physmap.
56 */
57 #define XENFEAT_pae_pgdir_above_4gb 4
59 #define XENFEAT_NR_SUBMAPS 1
61 #endif /* __XEN_PUBLIC_FEATURES_H__ */
63 /*
64 * Local variables:
65 * mode: C
66 * c-set-style: "BSD"
67 * c-basic-offset: 4
68 * tab-width: 4
69 * indent-tabs-mode: nil
70 * End:
71 */