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 * Register a shared page for the hypervisor to indicate whether the guest 43 * must issue PHYSDEVOP_eoi. The semantics of PHYSDEVOP_eoi change slightly 44 * once the guest used this function in that the associated event channel 45 * will automatically get unmasked. The page registered is used as a bit 46 * array indexed by Xen's PIRQ value. 47 */ 48 #define PHYSDEVOP_pirq_eoi_gmfn_v1 17 49 /* 50 * Register a shared page for the hypervisor to indicate whether the 51 * guest must issue PHYSDEVOP_eoi. This hypercall is very similar to 52 * PHYSDEVOP_pirq_eoi_gmfn_v1 but it doesn't change the semantics of 53 * PHYSDEVOP_eoi. The page registered is used as a bit array indexed by 54 * Xen's PIRQ value. 55 */ 56 #define PHYSDEVOP_pirq_eoi_gmfn_v2 28 57 struct physdev_pirq_eoi_gmfn { 58 /* IN */ 59 xen_ulong_t gmfn; 60 }; 61 62 /* 63 * Query the status of an IRQ line. 64 * @arg == pointer to physdev_irq_status_query structure. 65 */ 66 #define PHYSDEVOP_irq_status_query 5 67 struct physdev_irq_status_query { 68 /* IN */ 69 uint32_t irq; 70 /* OUT */ 71 uint32_t flags; /* XENIRQSTAT_* */ 72 }; 73 74 /* Need to call PHYSDEVOP_eoi when the IRQ has been serviced? */ 75 #define _XENIRQSTAT_needs_eoi (0) 76 #define XENIRQSTAT_needs_eoi (1U<<_XENIRQSTAT_needs_eoi) 77 78 /* IRQ shared by multiple guests? */ 79 #define _XENIRQSTAT_shared (1) 80 #define XENIRQSTAT_shared (1U<<_XENIRQSTAT_shared) 81 82 /* 83 * Set the current VCPU's I/O privilege level. 84 * @arg == pointer to physdev_set_iopl structure. 85 */ 86 #define PHYSDEVOP_set_iopl 6 87 struct physdev_set_iopl { 88 /* IN */ 89 uint32_t iopl; 90 }; 91 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 uint8_t * bitmap; 100 uint32_t nr_ports; 101 }; 102 103 /* 104 * Read or write an IO-APIC register. 105 * @arg == pointer to physdev_apic structure. 106 */ 107 #define PHYSDEVOP_apic_read 8 108 #define PHYSDEVOP_apic_write 9 109 struct physdev_apic { 110 /* IN */ 111 unsigned long apic_physbase; 112 uint32_t reg; 113 /* IN or OUT */ 114 uint32_t value; 115 }; 116 117 /* 118 * Allocate or free a physical upcall vector for the specified IRQ line. 119 * @arg == pointer to physdev_irq structure. 120 */ 121 #define PHYSDEVOP_alloc_irq_vector 10 122 #define PHYSDEVOP_free_irq_vector 11 123 struct physdev_irq { 124 /* IN */ 125 uint32_t irq; 126 /* IN or OUT */ 127 uint32_t vector; 128 }; 129 130 #define MAP_PIRQ_TYPE_MSI 0x0 131 #define MAP_PIRQ_TYPE_GSI 0x1 132 #define MAP_PIRQ_TYPE_UNKNOWN 0x2 133 #define MAP_PIRQ_TYPE_MSI_SEG 0x3 134 #define MAP_PIRQ_TYPE_MULTI_MSI 0x4 135 136 #define PHYSDEVOP_map_pirq 13 137 struct physdev_map_pirq { 138 domid_t domid; 139 /* IN */ 140 int type; 141 /* IN */ 142 int index; 143 /* IN or OUT */ 144 int pirq; 145 /* IN - high 16 bits hold segment for ..._MSI_SEG and ..._MULTI_MSI */ 146 int bus; 147 /* IN */ 148 int devfn; 149 /* IN 150 * - For MSI-X contains entry number. 151 * - For MSI with ..._MULTI_MSI contains number of vectors. 152 * OUT (..._MULTI_MSI only) 153 * - Number of vectors allocated. 154 */ 155 int entry_nr; 156 /* IN */ 157 uint64_t table_base; 158 }; 159 160 #define PHYSDEVOP_unmap_pirq 14 161 struct physdev_unmap_pirq { 162 domid_t domid; 163 /* IN */ 164 int pirq; 165 }; 166 167 #define PHYSDEVOP_manage_pci_add 15 168 #define PHYSDEVOP_manage_pci_remove 16 169 struct physdev_manage_pci { 170 /* IN */ 171 uint8_t bus; 172 uint8_t devfn; 173 }; 174 175 #define PHYSDEVOP_restore_msi 19 176 struct physdev_restore_msi { 177 /* IN */ 178 uint8_t bus; 179 uint8_t devfn; 180 }; 181 182 #define PHYSDEVOP_manage_pci_add_ext 20 183 struct physdev_manage_pci_ext { 184 /* IN */ 185 uint8_t bus; 186 uint8_t devfn; 187 unsigned is_extfn; 188 unsigned is_virtfn; 189 struct { 190 uint8_t bus; 191 uint8_t devfn; 192 } physfn; 193 }; 194 195 /* 196 * Argument to physdev_op_compat() hypercall. Superceded by new physdev_op() 197 * hypercall since 0x00030202. 198 */ 199 struct physdev_op { 200 uint32_t cmd; 201 union { 202 struct physdev_irq_status_query irq_status_query; 203 struct physdev_set_iopl set_iopl; 204 struct physdev_set_iobitmap set_iobitmap; 205 struct physdev_apic apic_op; 206 struct physdev_irq irq_op; 207 } u; 208 }; 209 210 #define PHYSDEVOP_setup_gsi 21 211 struct physdev_setup_gsi { 212 int gsi; 213 /* IN */ 214 uint8_t triggering; 215 /* IN */ 216 uint8_t polarity; 217 /* IN */ 218 }; 219 220 #define PHYSDEVOP_get_nr_pirqs 22 221 struct physdev_nr_pirqs { 222 /* OUT */ 223 uint32_t nr_pirqs; 224 }; 225 226 /* type is MAP_PIRQ_TYPE_GSI or MAP_PIRQ_TYPE_MSI 227 * the hypercall returns a free pirq */ 228 #define PHYSDEVOP_get_free_pirq 23 229 struct physdev_get_free_pirq { 230 /* IN */ 231 int type; 232 /* OUT */ 233 uint32_t pirq; 234 }; 235 236 #define XEN_PCI_DEV_EXTFN 0x1 237 #define XEN_PCI_DEV_VIRTFN 0x2 238 #define XEN_PCI_DEV_PXM 0x4 239 240 #define XEN_PCI_MMCFG_RESERVED 0x1 241 242 #define PHYSDEVOP_pci_mmcfg_reserved 24 243 struct physdev_pci_mmcfg_reserved { 244 uint64_t address; 245 uint16_t segment; 246 uint8_t start_bus; 247 uint8_t end_bus; 248 uint32_t flags; 249 }; 250 251 #define PHYSDEVOP_pci_device_add 25 252 struct physdev_pci_device_add { 253 /* IN */ 254 uint16_t seg; 255 uint8_t bus; 256 uint8_t devfn; 257 uint32_t flags; 258 struct { 259 uint8_t bus; 260 uint8_t devfn; 261 } physfn; 262 #if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901L 263 uint32_t optarr[]; 264 #elif defined(__GNUC__) 265 uint32_t optarr[0]; 266 #endif 267 }; 268 269 #define PHYSDEVOP_pci_device_remove 26 270 #define PHYSDEVOP_restore_msi_ext 27 271 /* 272 * Dom0 should use these two to announce MMIO resources assigned to 273 * MSI-X capable devices won't (prepare) or may (release) change. 274 */ 275 #define PHYSDEVOP_prepare_msix 30 276 #define PHYSDEVOP_release_msix 31 277 struct physdev_pci_device { 278 /* IN */ 279 uint16_t seg; 280 uint8_t bus; 281 uint8_t devfn; 282 }; 283 284 #define PHYSDEVOP_DBGP_RESET_PREPARE 1 285 #define PHYSDEVOP_DBGP_RESET_DONE 2 286 287 #define PHYSDEVOP_DBGP_BUS_UNKNOWN 0 288 #define PHYSDEVOP_DBGP_BUS_PCI 1 289 290 #define PHYSDEVOP_dbgp_op 29 291 struct physdev_dbgp_op { 292 /* IN */ 293 uint8_t op; 294 uint8_t bus; 295 union { 296 struct physdev_pci_device pci; 297 } u; 298 }; 299 300 /* 301 * Notify that some PIRQ-bound event channels have been unmasked. 302 * ** This command is obsolete since interface version 0x00030202 and is ** 303 * ** unsupported by newer versions of Xen. ** 304 */ 305 #define PHYSDEVOP_IRQ_UNMASK_NOTIFY 4 306 307 /* 308 * These all-capitals physdev operation names are superceded by the new names 309 * (defined above) since interface version 0x00030202. 310 */ 311 #define PHYSDEVOP_IRQ_STATUS_QUERY PHYSDEVOP_irq_status_query 312 #define PHYSDEVOP_SET_IOPL PHYSDEVOP_set_iopl 313 #define PHYSDEVOP_SET_IOBITMAP PHYSDEVOP_set_iobitmap 314 #define PHYSDEVOP_APIC_READ PHYSDEVOP_apic_read 315 #define PHYSDEVOP_APIC_WRITE PHYSDEVOP_apic_write 316 #define PHYSDEVOP_ASSIGN_VECTOR PHYSDEVOP_alloc_irq_vector 317 #define PHYSDEVOP_FREE_VECTOR PHYSDEVOP_free_irq_vector 318 #define PHYSDEVOP_IRQ_NEEDS_UNMASK_NOTIFY XENIRQSTAT_needs_eoi 319 #define PHYSDEVOP_IRQ_SHARED XENIRQSTAT_shared 320 321 #endif /* __XEN_PUBLIC_PHYSDEV_H__ */ 322