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Diffstat (limited to 'include/xen/interface/physdev.h')
-rw-r--r-- | include/xen/interface/physdev.h | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/include/xen/interface/physdev.h b/include/xen/interface/physdev.h new file mode 100644 index 000000000000..cd6939147cb6 --- /dev/null +++ b/include/xen/interface/physdev.h | |||
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1 | /* | ||
2 | * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
3 | * of this software and associated documentation files (the "Software"), to | ||
4 | * deal in the Software without restriction, including without limitation the | ||
5 | * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or | ||
6 | * sell copies of the Software, and to permit persons to whom the Software is | ||
7 | * furnished to do so, subject to the following conditions: | ||
8 | * | ||
9 | * The above copyright notice and this permission notice shall be included in | ||
10 | * all copies or substantial portions of the Software. | ||
11 | * | ||
12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
13 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
14 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE | ||
15 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
16 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING | ||
17 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER | ||
18 | * DEALINGS IN THE SOFTWARE. | ||
19 | */ | ||
20 | |||
21 | #ifndef __XEN_PUBLIC_PHYSDEV_H__ | ||
22 | #define __XEN_PUBLIC_PHYSDEV_H__ | ||
23 | |||
24 | /* | ||
25 | * Prototype for this hypercall is: | ||
26 | * int physdev_op(int cmd, void *args) | ||
27 | * @cmd == PHYSDEVOP_??? (physdev operation). | ||
28 | * @args == Operation-specific extra arguments (NULL if none). | ||
29 | */ | ||
30 | |||
31 | /* | ||
32 | * Notify end-of-interrupt (EOI) for the specified IRQ. | ||
33 | * @arg == pointer to physdev_eoi structure. | ||
34 | */ | ||
35 | #define PHYSDEVOP_eoi 12 | ||
36 | struct physdev_eoi { | ||
37 | /* IN */ | ||
38 | uint32_t irq; | ||
39 | }; | ||
40 | |||
41 | /* | ||
42 | * Query the status of an IRQ line. | ||
43 | * @arg == pointer to physdev_irq_status_query structure. | ||
44 | */ | ||
45 | #define PHYSDEVOP_irq_status_query 5 | ||
46 | struct physdev_irq_status_query { | ||
47 | /* IN */ | ||
48 | uint32_t irq; | ||
49 | /* OUT */ | ||
50 | uint32_t flags; /* XENIRQSTAT_* */ | ||
51 | }; | ||
52 | |||
53 | /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */ | ||
54 | #define _XENIRQSTAT_needs_eoi (0) | ||
55 | #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi) | ||
56 | |||
57 | /* IRQ shared by multiple guests? */ | ||
58 | #define _XENIRQSTAT_shared (1) | ||
59 | #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared) | ||
60 | |||
61 | /* | ||
62 | * Set the current VCPU's I/O privilege level. | ||
63 | * @arg == pointer to physdev_set_iopl structure. | ||
64 | */ | ||
65 | #define PHYSDEVOP_set_iopl 6 | ||
66 | struct physdev_set_iopl { | ||
67 | /* IN */ | ||
68 | uint32_t iopl; | ||
69 | }; | ||
70 | |||
71 | /* | ||
72 | * Set the current VCPU's I/O-port permissions bitmap. | ||
73 | * @arg == pointer to physdev_set_iobitmap structure. | ||
74 | */ | ||
75 | #define PHYSDEVOP_set_iobitmap 7 | ||
76 | struct physdev_set_iobitmap { | ||
77 | /* IN */ | ||
78 | uint8_t * bitmap; | ||
79 | uint32_t nr_ports; | ||
80 | }; | ||
81 | |||
82 | /* | ||
83 | * Read or write an IO-APIC register. | ||
84 | * @arg == pointer to physdev_apic structure. | ||
85 | */ | ||
86 | #define PHYSDEVOP_apic_read 8 | ||
87 | #define PHYSDEVOP_apic_write 9 | ||
88 | struct physdev_apic { | ||
89 | /* IN */ | ||
90 | unsigned long apic_physbase; | ||
91 | uint32_t reg; | ||
92 | /* IN or OUT */ | ||
93 | uint32_t value; | ||
94 | }; | ||
95 | |||
96 | /* | ||
97 | * Allocate or free a physical upcall vector for the specified IRQ line. | ||
98 | * @arg == pointer to physdev_irq structure. | ||
99 | */ | ||
100 | #define PHYSDEVOP_alloc_irq_vector 10 | ||
101 | #define PHYSDEVOP_free_irq_vector 11 | ||
102 | struct physdev_irq { | ||
103 | /* IN */ | ||
104 | uint32_t irq; | ||
105 | /* IN or OUT */ | ||
106 | uint32_t vector; | ||
107 | }; | ||
108 | |||
109 | /* | ||
110 | * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op() | ||
111 | * hypercall since 0x00030202. | ||
112 | */ | ||
113 | struct physdev_op { | ||
114 | uint32_t cmd; | ||
115 | union { | ||
116 | struct physdev_irq_status_query irq_status_query; | ||
117 | struct physdev_set_iopl set_iopl; | ||
118 | struct physdev_set_iobitmap set_iobitmap; | ||
119 | struct physdev_apic apic_op; | ||
120 | struct physdev_irq irq_op; | ||
121 | } u; | ||
122 | }; | ||
123 | |||
124 | /* | ||
125 | * Notify that some PIRQ-bound event channels have been unmasked. | ||
126 | * ** This command is obsolete since interface version 0x00030202 and is ** | ||
127 | * ** unsupported by newer versions of Xen. ** | ||
128 | */ | ||
129 | #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4 | ||
130 | |||
131 | /* | ||
132 | * These all-capitals physdev operation names are superceded by the new names | ||
133 | * (defined above) since interface version 0x00030202. | ||
134 | */ | ||
135 | #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query | ||
136 | #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl | ||
137 | #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap | ||
138 | #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read | ||
139 | #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write | ||
140 | #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector | ||
141 | #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector | ||
142 | #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi | ||
143 | #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared | ||
144 | |||
145 | #endif /* __XEN_PUBLIC_PHYSDEV_H__ */ | ||