[process] Include process name in debug messages
[ipxe.git] / src / include / xen / features.h
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 */
26
27 #ifndef __XEN_PUBLIC_FEATURES_H__
28 #define __XEN_PUBLIC_FEATURES_H__
29
30 FILE_LICENCE ( MIT );
31
32 /*
33 * `incontents 200 elfnotes_features XEN_ELFNOTE_FEATURES
34 *
35 * The list of all the features the guest supports. They are set by
36 * parsing the XEN_ELFNOTE_FEATURES and XEN_ELFNOTE_SUPPORTED_FEATURES
37 * string. The format is the feature names (as given here without the
38 * "XENFEAT_" prefix) separated by '|' characters.
39 * If a feature is required for the kernel to function then the feature name
40 * must be preceded by a '!' character.
41 *
42 * Note that if XEN_ELFNOTE_SUPPORTED_FEATURES is used, then in the
43 * XENFEAT_dom0 MUST be set if the guest is to be booted as dom0,
44 */
45
46 /*
47 * If set, the guest does not need to write-protect its pagetables, and can
48 * update them via direct writes.
49 */
50 #define XENFEAT_writable_page_tables 0
51
52 /*
53 * If set, the guest does not need to write-protect its segment descriptor
54 * tables, and can update them via direct writes.
55 */
56 #define XENFEAT_writable_descriptor_tables 1
57
58 /*
59 * If set, translation between the guest's 'pseudo-physical' address space
60 * and the host's machine address space are handled by the hypervisor. In this
61 * mode the guest does not need to perform phys-to/from-machine translations
62 * when performing page table operations.
63 */
64 #define XENFEAT_auto_translated_physmap 2
65
66 /* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */
67 #define XENFEAT_supervisor_mode_kernel 3
68
69 /*
70 * If set, the guest does not need to allocate x86 PAE page directories
71 * below 4GB. This flag is usually implied by auto_translated_physmap.
72 */
73 #define XENFEAT_pae_pgdir_above_4gb 4
74
75 /* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
76 #define XENFEAT_mmu_pt_update_preserve_ad 5
77
78 /* x86: Does this Xen host support the MMU_{CLEAR,COPY}_PAGE hypercall? */
79 #define XENFEAT_highmem_assist 6
80
81 /*
82 * If set, GNTTABOP_map_grant_ref honors flags to be placed into guest kernel
83 * available pte bits.
84 */
85 #define XENFEAT_gnttab_map_avail_bits 7
86
87 /* x86: Does this Xen host support the HVM callback vector type? */
88 #define XENFEAT_hvm_callback_vector 8
89
90 /* x86: pvclock algorithm is safe to use on HVM */
91 #define XENFEAT_hvm_safe_pvclock 9
92
93 /* x86: pirq can be used by HVM guests */
94 #define XENFEAT_hvm_pirqs 10
95
96 /* operation as Dom0 is supported */
97 #define XENFEAT_dom0 11
98
99 #define XENFEAT_NR_SUBMAPS 1
100
101 #endif /* __XEN_PUBLIC_FEATURES_H__ */
102
103 /*
104 * Local variables:
105 * mode: C
106 * c-file-style: "BSD"
107 * c-basic-offset: 4
108 * tab-width: 4
109 * indent-tabs-mode: nil
110 * End:
111 */