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 #include "xen.h"
25
26 /*
27 * Prototype for this hypercall is:
28 * int physdev_op(int cmd, void *args)
29 * @cmd == PHYSDEVOP_??? (physdev operation).
30 * @args == Operation-specific extra arguments (NULL if none).
31 */
32
33 /*
34 * Notify end-of-interrupt (EOI) for the specified IRQ.
35 * @arg == pointer to physdev_eoi structure.
36 */
37 #define PHYSDEVOP_eoi 12
38 struct physdev_eoi {
39 /* IN */
40 uint32_t irq;
41 };
42 typedef struct physdev_eoi physdev_eoi_t;
43 DEFINE_XEN_GUEST_HANDLE(physdev_eoi_t);
44
45 /*
46 * Register a shared page for the hypervisor to indicate whether the guest
47 * must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly
48 * once the guest used this function in that the associated event channel
49 * will automatically get unmasked. The page registered is used as a bit
50 * array indexed by Xen's PIRQ value.
51 */
52 #define PHYSDEVOP_pirq_eoi_gmfn_v1 17
53 /*
54 * Register a shared page for the hypervisor to indicate whether the
55 * guest must issue PHYSDEVOP_eoi. This hypercall is very similar to
56 * PHYSDEVOP_pirq_eoi_gmfn_v1 but it doesn't change the semantics of
57 * PHYSDEVOP_eoi. The page registered is used as a bit array indexed by
58 * Xen's PIRQ value.
59 */
60 #define PHYSDEVOP_pirq_eoi_gmfn_v2 28
61 struct physdev_pirq_eoi_gmfn {
62 /* IN */
63 xen_pfn_t gmfn;
64 };
65 typedef struct physdev_pirq_eoi_gmfn physdev_pirq_eoi_gmfn_t;
66 DEFINE_XEN_GUEST_HANDLE(physdev_pirq_eoi_gmfn_t);
67
68 /*
69 * Query the status of an IRQ line.
70 * @arg == pointer to physdev_irq_status_query structure.
71 */
72 #define PHYSDEVOP_irq_status_query 5
73 struct physdev_irq_status_query {
74 /* IN */
75 uint32_t irq;
76 /* OUT */
77 uint32_t flags; /* XENIRQSTAT_* */
78 };
79 typedef struct physdev_irq_status_query physdev_irq_status_query_t;
80 DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t);
81
82 /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */
83 #define _XENIRQSTAT_needs_eoi (0)
84 #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi)
85
86 /* IRQ shared by multiple guests? */
87 #define _XENIRQSTAT_shared (1)
88 #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared)
89
90 /*
91 * Set the current VCPU's I/O privilege level.
92 * @arg == pointer to physdev_set_iopl structure.
93 */
94 #define PHYSDEVOP_set_iopl 6
95 struct physdev_set_iopl {
96 /* IN */
97 uint32_t iopl;
98 };
99 typedef struct physdev_set_iopl physdev_set_iopl_t;
100 DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t);
101
102 /*
103 * Set the current VCPU's I/O-port permissions bitmap.
104 * @arg == pointer to physdev_set_iobitmap structure.
105 */
106 #define PHYSDEVOP_set_iobitmap 7
107 struct physdev_set_iobitmap {
108 /* IN */
109 #if __XEN_INTERFACE_VERSION__ >= 0x00030205
110 XEN_GUEST_HANDLE(uint8) bitmap;
111 #else
112 uint8_t *bitmap;
113 #endif
114 uint32_t nr_ports;
115 };
116 typedef struct physdev_set_iobitmap physdev_set_iobitmap_t;
117 DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t);
118
119 /*
120 * Read or write an IO-APIC register.
121 * @arg == pointer to physdev_apic structure.
122 */
123 #define PHYSDEVOP_apic_read 8
124 #define PHYSDEVOP_apic_write 9
125 struct physdev_apic {
126 /* IN */
127 unsigned long apic_physbase;
128 uint32_t reg;
129 /* IN or OUT */
130 uint32_t value;
131 };
132 typedef struct physdev_apic physdev_apic_t;
133 DEFINE_XEN_GUEST_HANDLE(physdev_apic_t);
134
135 /*
136 * Allocate or free a physical upcall vector for the specified IRQ line.
137 * @arg == pointer to physdev_irq structure.
138 */
139 #define PHYSDEVOP_alloc_irq_vector 10
140 #define PHYSDEVOP_free_irq_vector 11
141 struct physdev_irq {
142 /* IN */
143 uint32_t irq;
144 /* IN or OUT */
145 uint32_t vector;
146 };
147 typedef struct physdev_irq physdev_irq_t;
148 DEFINE_XEN_GUEST_HANDLE(physdev_irq_t);
149
150 #define MAP_PIRQ_TYPE_MSI 0x0
151 #define MAP_PIRQ_TYPE_GSI 0x1
152 #define MAP_PIRQ_TYPE_UNKNOWN 0x2
153 #define MAP_PIRQ_TYPE_MSI_SEG 0x3
154
155 #define PHYSDEVOP_map_pirq 13
156 struct physdev_map_pirq {
157 domid_t domid;
158 /* IN */
159 int type;
160 /* IN */
161 int index;
162 /* IN or OUT */
163 int pirq;
164 /* IN - high 16 bits hold segment for MAP_PIRQ_TYPE_MSI_SEG */
165 int bus;
166 /* IN */
167 int devfn;
168 /* IN */
169 int entry_nr;
170 /* IN */
171 uint64_t table_base;
172 };
173 typedef struct physdev_map_pirq physdev_map_pirq_t;
174 DEFINE_XEN_GUEST_HANDLE(physdev_map_pirq_t);
175
176 #define PHYSDEVOP_unmap_pirq 14
177 struct physdev_unmap_pirq {
178 domid_t domid;
179 /* IN */
180 int pirq;
181 };
182
183 typedef struct physdev_unmap_pirq physdev_unmap_pirq_t;
184 DEFINE_XEN_GUEST_HANDLE(physdev_unmap_pirq_t);
185
186 #define PHYSDEVOP_manage_pci_add 15
187 #define PHYSDEVOP_manage_pci_remove 16
188 struct physdev_manage_pci {
189 /* IN */
190 uint8_t bus;
191 uint8_t devfn;
192 };
193
194 typedef struct physdev_manage_pci physdev_manage_pci_t;
195 DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_t);
196
197 #define PHYSDEVOP_restore_msi 19
198 struct physdev_restore_msi {
199 /* IN */
200 uint8_t bus;
201 uint8_t devfn;
202 };
203 typedef struct physdev_restore_msi physdev_restore_msi_t;
204 DEFINE_XEN_GUEST_HANDLE(physdev_restore_msi_t);
205
206 #define PHYSDEVOP_manage_pci_add_ext 20
207 struct physdev_manage_pci_ext {
208 /* IN */
209 uint8_t bus;
210 uint8_t devfn;
211 unsigned is_extfn;
212 unsigned is_virtfn;
213 struct {
214 uint8_t bus;
215 uint8_t devfn;
216 } physfn;
217 };
218
219 typedef struct physdev_manage_pci_ext physdev_manage_pci_ext_t;
220 DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_ext_t);
221
222 /*
223 * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op()
224 * hypercall since 0x00030202.
225 */
226 struct physdev_op {
227 uint32_t cmd;
228 union {
229 struct physdev_irq_status_query irq_status_query;
230 struct physdev_set_iopl set_iopl;
231 struct physdev_set_iobitmap set_iobitmap;
232 struct physdev_apic apic_op;
233 struct physdev_irq irq_op;
234 } u;
235 };
236 typedef struct physdev_op physdev_op_t;
237 DEFINE_XEN_GUEST_HANDLE(physdev_op_t);
238
239 #define PHYSDEVOP_setup_gsi 21
240 struct physdev_setup_gsi {
241 int gsi;
242 /* IN */
243 uint8_t triggering;
244 /* IN */
245 uint8_t polarity;
246 /* IN */
247 };
248
249 typedef struct physdev_setup_gsi physdev_setup_gsi_t;
250 DEFINE_XEN_GUEST_HANDLE(physdev_setup_gsi_t);
251
252 /* leave PHYSDEVOP 22 free */
253
254 /* type is MAP_PIRQ_TYPE_GSI or MAP_PIRQ_TYPE_MSI
255 * the hypercall returns a free pirq */
256 #define PHYSDEVOP_get_free_pirq 23
257 struct physdev_get_free_pirq {
258 /* IN */
259 int type;
260 /* OUT */
261 uint32_t pirq;
262 };
263
264 typedef struct physdev_get_free_pirq physdev_get_free_pirq_t;
265 DEFINE_XEN_GUEST_HANDLE(physdev_get_free_pirq_t);
266
267 #define XEN_PCI_MMCFG_RESERVED 0x1
268
269 #define PHYSDEVOP_pci_mmcfg_reserved 24
270 struct physdev_pci_mmcfg_reserved {
271 uint64_t address;
272 uint16_t segment;
273 uint8_t start_bus;
274 uint8_t end_bus;
275 uint32_t flags;
276 };
277 typedef struct physdev_pci_mmcfg_reserved physdev_pci_mmcfg_reserved_t;
278 DEFINE_XEN_GUEST_HANDLE(physdev_pci_mmcfg_reserved_t);
279
280 #define XEN_PCI_DEV_EXTFN 0x1
281 #define XEN_PCI_DEV_VIRTFN 0x2
282 #define XEN_PCI_DEV_PXM 0x4
283
284 #define PHYSDEVOP_pci_device_add 25
285 struct physdev_pci_device_add {
286 /* IN */
287 uint16_t seg;
288 uint8_t bus;
289 uint8_t devfn;
290 uint32_t flags;
291 struct {
292 uint8_t bus;
293 uint8_t devfn;
294 } physfn;
295 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
296 uint32_t optarr[];
297 #elif defined(__GNUC__)
298 uint32_t optarr[0];
299 #endif
300 };
301 typedef struct physdev_pci_device_add physdev_pci_device_add_t;
302 DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_add_t);
303
304 #define PHYSDEVOP_pci_device_remove 26
305 #define PHYSDEVOP_restore_msi_ext 27
306 struct physdev_pci_device {
307 /* IN */
308 uint16_t seg;
309 uint8_t bus;
310 uint8_t devfn;
311 };
312 typedef struct physdev_pci_device physdev_pci_device_t;
313 DEFINE_XEN_GUEST_HANDLE(physdev_pci_device_t);
314
315 /*
316 * Notify that some PIRQ-bound event channels have been unmasked.
317 * ** This command is obsolete since interface version 0x00030202 and is **
318 * ** unsupported by newer versions of Xen. **
319 */
320 #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4
321
322 /*
323 * These all-capitals physdev operation names are superceded by the new names
324 * (defined above) since interface version 0x00030202.
325 */
326 #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query
327 #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl
328 #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap
329 #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read
330 #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write
331 #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector
332 #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector
333 #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi
334 #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared
335
336 #if __XEN_INTERFACE_VERSION__ < 0x00040200
337 #define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v1
338 #else
339 #define PHYSDEVOP_pirq_eoi_gmfn PHYSDEVOP_pirq_eoi_gmfn_v2
340 #endif
341
342 #endif /* __XEN_PUBLIC_PHYSDEV_H__ */
343
344 /*
345 * Local variables:
346 * mode: C
347 * c-set-style: "BSD"
348 * c-basic-offset: 4
349 * tab-width: 4
350 * indent-tabs-mode: nil
351 * End:
352 */
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