ia64/xen-unstable

view xen/include/public/physdev.h @ 19402:f02a528d2e56

Xen: use proper device ID to search VT-d unit for ARI and SR-IOV device

PCIe Alternative Routing-ID Interpretation (ARI) ECN defines the Extended
Function -- a function whose function number is greater than 7 within an
ARI Device. Intel VT-d spec 1.2 section 8.3.2 specifies that the Extended
Function is under the scope of the same remapping unit as the traditional
function. The hypervisor needs to know if a function is Extended
Function so it can find proper DMAR for it.

And section 8.3.3 specifies that the SR-IOV Virtual Function is under the
scope of the same remapping unit as the Physical Function. The hypervisor
also needs to know if a function is the Virtual Function and which
Physical Function it's associated with for same reason.

Signed-off-by: Yu Zhao <yu.zhao@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Mar 19 10:20:11 2009 +0000 (2009-03-19)
parents 2dffa6ceb0af
children 44d76cbe74ec
line source
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 */
21 #ifndef __XEN_PUBLIC_PHYSDEV_H__
22 #define __XEN_PUBLIC_PHYSDEV_H__
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 */
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 typedef struct physdev_eoi physdev_eoi_t;
41 DEFINE_XEN_GUEST_HANDLE(physdev_eoi_t);
43 /*
44 * Register a shared page for the hypervisor to indicate whether the guest
45 * must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly
46 * once the guest used this function in that the associated event channel
47 * will automatically get unmasked. The page registered is used as a bit
48 * array indexed by Xen's PIRQ value.
49 */
50 #define PHYSDEVOP_pirq_eoi_gmfn 17
51 struct physdev_pirq_eoi_gmfn {
52 /* IN */
53 xen_pfn_t gmfn;
54 };
55 typedef struct physdev_pirq_eoi_gmfn physdev_pirq_eoi_gmfn_t;
56 DEFINE_XEN_GUEST_HANDLE(physdev_pirq_eoi_gmfn_t);
58 /*
59 * Query the status of an IRQ line.
60 * @arg == pointer to physdev_irq_status_query structure.
61 */
62 #define PHYSDEVOP_irq_status_query 5
63 struct physdev_irq_status_query {
64 /* IN */
65 uint32_t irq;
66 /* OUT */
67 uint32_t flags; /* XENIRQSTAT_* */
68 };
69 typedef struct physdev_irq_status_query physdev_irq_status_query_t;
70 DEFINE_XEN_GUEST_HANDLE(physdev_irq_status_query_t);
72 /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */
73 #define _XENIRQSTAT_needs_eoi (0)
74 #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi)
76 /* IRQ shared by multiple guests? */
77 #define _XENIRQSTAT_shared (1)
78 #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared)
80 /*
81 * Set the current VCPU's I/O privilege level.
82 * @arg == pointer to physdev_set_iopl structure.
83 */
84 #define PHYSDEVOP_set_iopl 6
85 struct physdev_set_iopl {
86 /* IN */
87 uint32_t iopl;
88 };
89 typedef struct physdev_set_iopl physdev_set_iopl_t;
90 DEFINE_XEN_GUEST_HANDLE(physdev_set_iopl_t);
92 /*
93 * Set the current VCPU's I/O-port permissions bitmap.
94 * @arg == pointer to physdev_set_iobitmap structure.
95 */
96 #define PHYSDEVOP_set_iobitmap 7
97 struct physdev_set_iobitmap {
98 /* IN */
99 #if __XEN_INTERFACE_VERSION__ >= 0x00030205
100 XEN_GUEST_HANDLE(uint8) bitmap;
101 #else
102 uint8_t *bitmap;
103 #endif
104 uint32_t nr_ports;
105 };
106 typedef struct physdev_set_iobitmap physdev_set_iobitmap_t;
107 DEFINE_XEN_GUEST_HANDLE(physdev_set_iobitmap_t);
109 /*
110 * Read or write an IO-APIC register.
111 * @arg == pointer to physdev_apic structure.
112 */
113 #define PHYSDEVOP_apic_read 8
114 #define PHYSDEVOP_apic_write 9
115 struct physdev_apic {
116 /* IN */
117 unsigned long apic_physbase;
118 uint32_t reg;
119 /* IN or OUT */
120 uint32_t value;
121 };
122 typedef struct physdev_apic physdev_apic_t;
123 DEFINE_XEN_GUEST_HANDLE(physdev_apic_t);
125 /*
126 * Allocate or free a physical upcall vector for the specified IRQ line.
127 * @arg == pointer to physdev_irq structure.
128 */
129 #define PHYSDEVOP_alloc_irq_vector 10
130 #define PHYSDEVOP_free_irq_vector 11
131 struct physdev_irq {
132 /* IN */
133 uint32_t irq;
134 /* IN or OUT */
135 uint32_t vector;
136 };
137 typedef struct physdev_irq physdev_irq_t;
138 DEFINE_XEN_GUEST_HANDLE(physdev_irq_t);
140 #define MAP_PIRQ_TYPE_MSI 0x0
141 #define MAP_PIRQ_TYPE_GSI 0x1
142 #define MAP_PIRQ_TYPE_UNKNOWN 0x2
144 #define PHYSDEVOP_map_pirq 13
145 struct physdev_map_pirq {
146 domid_t domid;
147 /* IN */
148 int type;
149 /* IN */
150 int index;
151 /* IN or OUT */
152 int pirq;
153 /* IN */
154 int bus;
155 /* IN */
156 int devfn;
157 /* IN */
158 int entry_nr;
159 /* IN */
160 uint64_t table_base;
161 };
162 typedef struct physdev_map_pirq physdev_map_pirq_t;
163 DEFINE_XEN_GUEST_HANDLE(physdev_map_pirq_t);
165 #define PHYSDEVOP_unmap_pirq 14
166 struct physdev_unmap_pirq {
167 domid_t domid;
168 /* IN */
169 int pirq;
170 };
172 typedef struct physdev_unmap_pirq physdev_unmap_pirq_t;
173 DEFINE_XEN_GUEST_HANDLE(physdev_unmap_pirq_t);
175 #define PHYSDEVOP_manage_pci_add 15
176 #define PHYSDEVOP_manage_pci_remove 16
177 struct physdev_manage_pci {
178 /* IN */
179 uint8_t bus;
180 uint8_t devfn;
181 };
183 typedef struct physdev_manage_pci physdev_manage_pci_t;
184 DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_t);
186 #define PHYSDEVOP_manage_pci_add_ext 20
187 struct physdev_manage_pci_ext {
188 /* IN */
189 uint8_t bus;
190 uint8_t devfn;
191 unsigned is_extfn;
192 unsigned is_virtfn;
193 struct {
194 uint8_t bus;
195 uint8_t devfn;
196 } physfn;
197 };
199 typedef struct physdev_manage_pci_ext physdev_manage_pci_ext_t;
200 DEFINE_XEN_GUEST_HANDLE(physdev_manage_pci_ext_t);
202 #define PHYSDEVOP_restore_msi 19
203 struct physdev_restore_msi {
204 /* IN */
205 uint8_t bus;
206 uint8_t devfn;
207 };
208 typedef struct physdev_restore_msi physdev_restore_msi_t;
209 DEFINE_XEN_GUEST_HANDLE(physdev_restore_msi_t);
211 /*
212 * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op()
213 * hypercall since 0x00030202.
214 */
215 struct physdev_op {
216 uint32_t cmd;
217 union {
218 struct physdev_irq_status_query irq_status_query;
219 struct physdev_set_iopl set_iopl;
220 struct physdev_set_iobitmap set_iobitmap;
221 struct physdev_apic apic_op;
222 struct physdev_irq irq_op;
223 } u;
224 };
225 typedef struct physdev_op physdev_op_t;
226 DEFINE_XEN_GUEST_HANDLE(physdev_op_t);
228 /*
229 * Notify that some PIRQ-bound event channels have been unmasked.
230 * ** This command is obsolete since interface version 0x00030202 and is **
231 * ** unsupported by newer versions of Xen. **
232 */
233 #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4
235 /*
236 * These all-capitals physdev operation names are superceded by the new names
237 * (defined above) since interface version 0x00030202.
238 */
239 #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query
240 #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl
241 #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap
242 #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read
243 #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write
244 #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector
245 #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector
246 #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi
247 #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared
249 #endif /* __XEN_PUBLIC_PHYSDEV_H__ */
251 /*
252 * Local variables:
253 * mode: C
254 * c-set-style: "BSD"
255 * c-basic-offset: 4
256 * tab-width: 4
257 * indent-tabs-mode: nil
258 * End:
259 */