/root/src/xen/xen/include/public/features.h

Source (jump to first uncovered line)
/******************************************************************************
 * features.h
 * 
 * Feature flags, reported by XENVER_get_features.
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *
 * Copyright (c) 2006, Keir Fraser <keir@xensource.com>
 */

#ifndef __XEN_PUBLIC_FEATURES_H__
#define __XEN_PUBLIC_FEATURES_H__

/*
 * `incontents 200 elfnotes_features XEN_ELFNOTE_FEATURES
 *
 * The list of all the features the guest supports. They are set by
 * parsing the XEN_ELFNOTE_FEATURES and XEN_ELFNOTE_SUPPORTED_FEATURES
 * string. The format is the  feature names (as given here without the
 * "XENFEAT_" prefix) separated by '|' characters.
 * If a feature is required for the kernel to function then the feature name
 * must be preceded by a '!' character.
 *
 * Note that if XEN_ELFNOTE_SUPPORTED_FEATURES is used, then in the
 * XENFEAT_dom0 MUST be set if the guest is to be booted as dom0,
 */

/*
 * If set, the guest does not need to write-protect its pagetables, and can
 * update them via direct writes.
 */
#define XENFEAT_writable_page_tables       0

/*
 * If set, the guest does not need to write-protect its segment descriptor
 * tables, and can update them via direct writes.
 */
#define XENFEAT_writable_descriptor_tables 1

/*
 * If set, translation between the guest's 'pseudo-physical' address space
 * and the host's machine address space are handled by the hypervisor. In this
 * mode the guest does not need to perform phys-to/from-machine translations
 * when performing page table operations.
 */
#define XENFEAT_auto_translated_physmap    2

/* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */
#define XENFEAT_supervisor_mode_kernel     3

/*
 * If set, the guest does not need to allocate x86 PAE page directories
 * below 4GB. This flag is usually implied by auto_translated_physmap.
 */
#define XENFEAT_pae_pgdir_above_4gb        4

/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
#define XENFEAT_mmu_pt_update_preserve_ad  5

/* x86: Does this Xen host support the MMU_{CLEAR,COPY}_PAGE hypercall? */
#define XENFEAT_highmem_assist             6

/*
 * If set, GNTTABOP_map_grant_ref honors flags to be placed into guest kernel
 * available pte bits.
 */
#define XENFEAT_gnttab_map_avail_bits      7

/* x86: Does this Xen host support the HVM callback vector type? */
#define XENFEAT_hvm_callback_vector        8

/* x86: pvclock algorithm is safe to use on HVM */
#define XENFEAT_hvm_safe_pvclock           9

/* x86: pirq can be used by HVM guests */
#define XENFEAT_hvm_pirqs                 10

/* operation as Dom0 is supported */
#define XENFEAT_dom0                      11

/* Xen also maps grant references at pfn = mfn.
 * This feature flag is deprecated and should not be used.
#define XENFEAT_grant_map_identity        12
 */

/* Guest can use XENMEMF_vnode to specify virtual node for memory op. */
#define XENFEAT_memory_op_vnode_supported 13

/* arm: Hypervisor supports ARM SMC calling convention. */
#define XENFEAT_ARM_SMCCC_supported       14

#define XENFEAT_NR_SUBMAPS 1

#endif /* __XEN_PUBLIC_FEATURES_H__ */

/*
 * Local variables:
 * mode: C
 * c-file-style: "BSD"
 * c-basic-offset: 4
 * tab-width: 4
 * indent-tabs-mode: nil
 * End:
 */

Line	Count	Source (jump to first uncovered line)
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		/*
31		* `incontents 200 elfnotes_features XEN_ELFNOTE_FEATURES
32		*
33		* The list of all the features the guest supports. They are set by
34		* parsing the XEN_ELFNOTE_FEATURES and XEN_ELFNOTE_SUPPORTED_FEATURES
35		* string. The format is the feature names (as given here without the
36		* "XENFEAT_" prefix) separated by '\|' characters.
37		* If a feature is required for the kernel to function then the feature name
38		* must be preceded by a '!' character.
39		*
40		* Note that if XEN_ELFNOTE_SUPPORTED_FEATURES is used, then in the
41		* XENFEAT_dom0 MUST be set if the guest is to be booted as dom0,
42		*/
43
44		/*
45		* If set, the guest does not need to write-protect its pagetables, and can
46		* update them via direct writes.
47		*/
48	1	#define XENFEAT_writable_page_tables 0
49
50		/*
51		* If set, the guest does not need to write-protect its segment descriptor
52		* tables, and can update them via direct writes.
53		*/
54		#define XENFEAT_writable_descriptor_tables 1
55
56		/*
57		* If set, translation between the guest's 'pseudo-physical' address space
58		* and the host's machine address space are handled by the hypervisor. In this
59		* mode the guest does not need to perform phys-to/from-machine translations
60		* when performing page table operations.
61		*/
62	1	#define XENFEAT_auto_translated_physmap 2
63
64		/* If set, the guest is running in supervisor mode (e.g., x86 ring 0). */
65		#define XENFEAT_supervisor_mode_kernel 3
66
67		/*
68		* If set, the guest does not need to allocate x86 PAE page directories
69		* below 4GB. This flag is usually implied by auto_translated_physmap.
70		*/
71	0	#define XENFEAT_pae_pgdir_above_4gb 4
72
73		/* x86: Does this Xen host support the MMU_PT_UPDATE_PRESERVE_AD hypercall? */
74	0	#define XENFEAT_mmu_pt_update_preserve_ad 5
75
76		/* x86: Does this Xen host support the MMU_{CLEAR,COPY}_PAGE hypercall? */
77	0	#define XENFEAT_highmem_assist 6
78
79		/*
80		* If set, GNTTABOP_map_grant_ref honors flags to be placed into guest kernel
81		* available pte bits.
82		*/
83	0	#define XENFEAT_gnttab_map_avail_bits 7
84
85		/* x86: Does this Xen host support the HVM callback vector type? */
86	1	#define XENFEAT_hvm_callback_vector 8
87
88		/* x86: pvclock algorithm is safe to use on HVM */
89	1	#define XENFEAT_hvm_safe_pvclock 9
90
91		/* x86: pirq can be used by HVM guests */
92	0	#define XENFEAT_hvm_pirqs 10
93
94		/* operation as Dom0 is supported */
95	1	#define XENFEAT_dom0 11
96
97		/* Xen also maps grant references at pfn = mfn.
98		* This feature flag is deprecated and should not be used.
99		#define XENFEAT_grant_map_identity 12
100		*/
101
102		/* Guest can use XENMEMF_vnode to specify virtual node for memory op. */
103	1	#define XENFEAT_memory_op_vnode_supported 13
104
105		/* arm: Hypervisor supports ARM SMC calling convention. */
106		#define XENFEAT_ARM_SMCCC_supported 14
107
108	0	#define XENFEAT_NR_SUBMAPS 1
109
110		#endif /* __XEN_PUBLIC_FEATURES_H__ */
111
112		/*
113		* Local variables:
114		* mode: C
115		* c-file-style: "BSD"
116		* c-basic-offset: 4
117		* tab-width: 4
118		* indent-tabs-mode: nil
119		* End:
120		*/

Coverage Report

Created: 2017-10-25 09:10