1 #ifndef QEMU_HW_XEN_NATIVE_H 2 #define QEMU_HW_XEN_NATIVE_H 3 4 #ifdef __XEN_INTERFACE_VERSION__ 5 #error In Xen native files, include xen_native.h before other Xen headers 6 #endif 7 8 /* 9 * If we have new enough libxenctrl then we do not want/need these compat 10 * interfaces, despite what the user supplied cflags might say. They 11 * must be undefined before including xenctrl.h 12 */ 13 #undef XC_WANT_COMPAT_EVTCHN_API 14 #undef XC_WANT_COMPAT_GNTTAB_API 15 #undef XC_WANT_COMPAT_MAP_FOREIGN_API 16 17 #include <xenctrl.h> 18 #include <xenstore.h> 19 20 #include "hw/xen/xen.h" 21 #include "hw/pci/pci_device.h" 22 #include "hw/xen/trace.h" 23 24 extern xc_interface *xen_xc; 25 26 /* 27 * We don't support Xen prior to 4.7.1. 28 */ 29 30 #include <xenforeignmemory.h> 31 32 extern xenforeignmemory_handle *xen_fmem; 33 34 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900 35 36 typedef xc_interface xendevicemodel_handle; 37 38 #else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 40900 */ 39 40 #undef XC_WANT_COMPAT_DEVICEMODEL_API 41 #include <xendevicemodel.h> 42 43 #endif 44 45 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100 46 47 static inline int xendevicemodel_relocate_memory( 48 xendevicemodel_handle *dmod, domid_t domid, uint32_t size, uint64_t src_gfn, 49 uint64_t dst_gfn) 50 { 51 uint32_t i; 52 int rc; 53 54 for (i = 0; i < size; i++) { 55 unsigned long idx = src_gfn + i; 56 xen_pfn_t gpfn = dst_gfn + i; 57 58 rc = xc_domain_add_to_physmap(xen_xc, domid, XENMAPSPACE_gmfn, idx, 59 gpfn); 60 if (rc) { 61 return rc; 62 } 63 } 64 65 return 0; 66 } 67 68 static inline int xendevicemodel_pin_memory_cacheattr( 69 xendevicemodel_handle *dmod, domid_t domid, uint64_t start, uint64_t end, 70 uint32_t type) 71 { 72 return xc_domain_pin_memory_cacheattr(xen_xc, domid, start, end, type); 73 } 74 75 typedef void xenforeignmemory_resource_handle; 76 77 #define XENMEM_resource_ioreq_server 0 78 79 #define XENMEM_resource_ioreq_server_frame_bufioreq 0 80 #define XENMEM_resource_ioreq_server_frame_ioreq(n) (1 + (n)) 81 82 static inline xenforeignmemory_resource_handle *xenforeignmemory_map_resource( 83 xenforeignmemory_handle *fmem, domid_t domid, unsigned int type, 84 unsigned int id, unsigned long frame, unsigned long nr_frames, 85 void **paddr, int prot, int flags) 86 { 87 errno = EOPNOTSUPP; 88 return NULL; 89 } 90 91 static inline int xenforeignmemory_unmap_resource( 92 xenforeignmemory_handle *fmem, xenforeignmemory_resource_handle *fres) 93 { 94 return 0; 95 } 96 97 #endif /* CONFIG_XEN_CTRL_INTERFACE_VERSION < 41100 */ 98 99 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41000 100 101 #define XEN_COMPAT_PHYSMAP 102 static inline void *xenforeignmemory_map2(xenforeignmemory_handle *h, 103 uint32_t dom, void *addr, 104 int prot, int flags, size_t pages, 105 const xen_pfn_t arr[/*pages*/], 106 int err[/*pages*/]) 107 { 108 assert(addr == NULL && flags == 0); 109 return xenforeignmemory_map(h, dom, prot, pages, arr, err); 110 } 111 112 static inline int xentoolcore_restrict_all(domid_t domid) 113 { 114 errno = ENOTTY; 115 return -1; 116 } 117 118 static inline int xendevicemodel_shutdown(xendevicemodel_handle *dmod, 119 domid_t domid, unsigned int reason) 120 { 121 errno = ENOTTY; 122 return -1; 123 } 124 125 #else /* CONFIG_XEN_CTRL_INTERFACE_VERSION >= 41000 */ 126 127 #include <xentoolcore.h> 128 129 #endif 130 131 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 40900 132 133 static inline xendevicemodel_handle *xendevicemodel_open( 134 struct xentoollog_logger *logger, unsigned int open_flags) 135 { 136 return xen_xc; 137 } 138 139 static inline int xendevicemodel_create_ioreq_server( 140 xendevicemodel_handle *dmod, domid_t domid, int handle_bufioreq, 141 ioservid_t *id) 142 { 143 return xc_hvm_create_ioreq_server(dmod, domid, handle_bufioreq, 144 id); 145 } 146 147 static inline int xendevicemodel_get_ioreq_server_info( 148 xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, 149 xen_pfn_t *ioreq_pfn, xen_pfn_t *bufioreq_pfn, 150 evtchn_port_t *bufioreq_port) 151 { 152 return xc_hvm_get_ioreq_server_info(dmod, domid, id, ioreq_pfn, 153 bufioreq_pfn, bufioreq_port); 154 } 155 156 static inline int xendevicemodel_map_io_range_to_ioreq_server( 157 xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int is_mmio, 158 uint64_t start, uint64_t end) 159 { 160 return xc_hvm_map_io_range_to_ioreq_server(dmod, domid, id, is_mmio, 161 start, end); 162 } 163 164 static inline int xendevicemodel_unmap_io_range_from_ioreq_server( 165 xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int is_mmio, 166 uint64_t start, uint64_t end) 167 { 168 return xc_hvm_unmap_io_range_from_ioreq_server(dmod, domid, id, is_mmio, 169 start, end); 170 } 171 172 static inline int xendevicemodel_map_pcidev_to_ioreq_server( 173 xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, 174 uint16_t segment, uint8_t bus, uint8_t device, uint8_t function) 175 { 176 return xc_hvm_map_pcidev_to_ioreq_server(dmod, domid, id, segment, 177 bus, device, function); 178 } 179 180 static inline int xendevicemodel_unmap_pcidev_from_ioreq_server( 181 xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, 182 uint16_t segment, uint8_t bus, uint8_t device, uint8_t function) 183 { 184 return xc_hvm_unmap_pcidev_from_ioreq_server(dmod, domid, id, segment, 185 bus, device, function); 186 } 187 188 static inline int xendevicemodel_destroy_ioreq_server( 189 xendevicemodel_handle *dmod, domid_t domid, ioservid_t id) 190 { 191 return xc_hvm_destroy_ioreq_server(dmod, domid, id); 192 } 193 194 static inline int xendevicemodel_set_ioreq_server_state( 195 xendevicemodel_handle *dmod, domid_t domid, ioservid_t id, int enabled) 196 { 197 return xc_hvm_set_ioreq_server_state(dmod, domid, id, enabled); 198 } 199 200 static inline int xendevicemodel_set_pci_intx_level( 201 xendevicemodel_handle *dmod, domid_t domid, uint16_t segment, 202 uint8_t bus, uint8_t device, uint8_t intx, unsigned int level) 203 { 204 return xc_hvm_set_pci_intx_level(dmod, domid, segment, bus, device, 205 intx, level); 206 } 207 208 static inline int xendevicemodel_set_isa_irq_level( 209 xendevicemodel_handle *dmod, domid_t domid, uint8_t irq, 210 unsigned int level) 211 { 212 return xc_hvm_set_isa_irq_level(dmod, domid, irq, level); 213 } 214 215 static inline int xendevicemodel_set_pci_link_route( 216 xendevicemodel_handle *dmod, domid_t domid, uint8_t link, uint8_t irq) 217 { 218 return xc_hvm_set_pci_link_route(dmod, domid, link, irq); 219 } 220 221 static inline int xendevicemodel_inject_msi( 222 xendevicemodel_handle *dmod, domid_t domid, uint64_t msi_addr, 223 uint32_t msi_data) 224 { 225 return xc_hvm_inject_msi(dmod, domid, msi_addr, msi_data); 226 } 227 228 static inline int xendevicemodel_track_dirty_vram( 229 xendevicemodel_handle *dmod, domid_t domid, uint64_t first_pfn, 230 uint32_t nr, unsigned long *dirty_bitmap) 231 { 232 return xc_hvm_track_dirty_vram(dmod, domid, first_pfn, nr, 233 dirty_bitmap); 234 } 235 236 static inline int xendevicemodel_modified_memory( 237 xendevicemodel_handle *dmod, domid_t domid, uint64_t first_pfn, 238 uint32_t nr) 239 { 240 return xc_hvm_modified_memory(dmod, domid, first_pfn, nr); 241 } 242 243 static inline int xendevicemodel_set_mem_type( 244 xendevicemodel_handle *dmod, domid_t domid, hvmmem_type_t mem_type, 245 uint64_t first_pfn, uint32_t nr) 246 { 247 return xc_hvm_set_mem_type(dmod, domid, mem_type, first_pfn, nr); 248 } 249 250 #endif 251 252 extern xendevicemodel_handle *xen_dmod; 253 254 static inline int xen_set_mem_type(domid_t domid, hvmmem_type_t type, 255 uint64_t first_pfn, uint32_t nr) 256 { 257 return xendevicemodel_set_mem_type(xen_dmod, domid, type, first_pfn, 258 nr); 259 } 260 261 static inline int xen_set_pci_intx_level(domid_t domid, uint16_t segment, 262 uint8_t bus, uint8_t device, 263 uint8_t intx, unsigned int level) 264 { 265 return xendevicemodel_set_pci_intx_level(xen_dmod, domid, segment, bus, 266 device, intx, level); 267 } 268 269 static inline int xen_inject_msi(domid_t domid, uint64_t msi_addr, 270 uint32_t msi_data) 271 { 272 return xendevicemodel_inject_msi(xen_dmod, domid, msi_addr, msi_data); 273 } 274 275 static inline int xen_set_isa_irq_level(domid_t domid, uint8_t irq, 276 unsigned int level) 277 { 278 return xendevicemodel_set_isa_irq_level(xen_dmod, domid, irq, level); 279 } 280 281 static inline int xen_track_dirty_vram(domid_t domid, uint64_t first_pfn, 282 uint32_t nr, unsigned long *bitmap) 283 { 284 return xendevicemodel_track_dirty_vram(xen_dmod, domid, first_pfn, nr, 285 bitmap); 286 } 287 288 static inline int xen_modified_memory(domid_t domid, uint64_t first_pfn, 289 uint32_t nr) 290 { 291 return xendevicemodel_modified_memory(xen_dmod, domid, first_pfn, nr); 292 } 293 294 static inline int xen_restrict(domid_t domid) 295 { 296 int rc; 297 rc = xentoolcore_restrict_all(domid); 298 trace_xen_domid_restrict(rc ? errno : 0); 299 return rc; 300 } 301 302 void destroy_hvm_domain(bool reboot); 303 304 /* shutdown/destroy current domain because of an error */ 305 void xen_shutdown_fatal_error(const char *fmt, ...) G_GNUC_PRINTF(1, 2); 306 307 #ifdef HVM_PARAM_VMPORT_REGS_PFN 308 static inline int xen_get_vmport_regs_pfn(xc_interface *xc, domid_t dom, 309 xen_pfn_t *vmport_regs_pfn) 310 { 311 int rc; 312 uint64_t value; 313 rc = xc_hvm_param_get(xc, dom, HVM_PARAM_VMPORT_REGS_PFN, &value); 314 if (rc >= 0) { 315 *vmport_regs_pfn = (xen_pfn_t) value; 316 } 317 return rc; 318 } 319 #else 320 static inline int xen_get_vmport_regs_pfn(xc_interface *xc, domid_t dom, 321 xen_pfn_t *vmport_regs_pfn) 322 { 323 return -ENOSYS; 324 } 325 #endif 326 327 static inline int xen_get_default_ioreq_server_info(domid_t dom, 328 xen_pfn_t *ioreq_pfn, 329 xen_pfn_t *bufioreq_pfn, 330 evtchn_port_t 331 *bufioreq_evtchn) 332 { 333 unsigned long param; 334 int rc; 335 336 rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_IOREQ_PFN, ¶m); 337 if (rc < 0) { 338 fprintf(stderr, "failed to get HVM_PARAM_IOREQ_PFN\n"); 339 return -1; 340 } 341 342 *ioreq_pfn = param; 343 344 rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_BUFIOREQ_PFN, ¶m); 345 if (rc < 0) { 346 fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_PFN\n"); 347 return -1; 348 } 349 350 *bufioreq_pfn = param; 351 352 rc = xc_get_hvm_param(xen_xc, dom, HVM_PARAM_BUFIOREQ_EVTCHN, 353 ¶m); 354 if (rc < 0) { 355 fprintf(stderr, "failed to get HVM_PARAM_BUFIOREQ_EVTCHN\n"); 356 return -1; 357 } 358 359 *bufioreq_evtchn = param; 360 361 return 0; 362 } 363 364 static bool use_default_ioreq_server; 365 366 static inline void xen_map_memory_section(domid_t dom, 367 ioservid_t ioservid, 368 MemoryRegionSection *section) 369 { 370 hwaddr start_addr = section->offset_within_address_space; 371 ram_addr_t size = int128_get64(section->size); 372 hwaddr end_addr = start_addr + size - 1; 373 374 if (use_default_ioreq_server) { 375 return; 376 } 377 378 trace_xen_map_mmio_range(ioservid, start_addr, end_addr); 379 xendevicemodel_map_io_range_to_ioreq_server(xen_dmod, dom, ioservid, 1, 380 start_addr, end_addr); 381 } 382 383 static inline void xen_unmap_memory_section(domid_t dom, 384 ioservid_t ioservid, 385 MemoryRegionSection *section) 386 { 387 hwaddr start_addr = section->offset_within_address_space; 388 ram_addr_t size = int128_get64(section->size); 389 hwaddr end_addr = start_addr + size - 1; 390 391 if (use_default_ioreq_server) { 392 return; 393 } 394 395 trace_xen_unmap_mmio_range(ioservid, start_addr, end_addr); 396 xendevicemodel_unmap_io_range_from_ioreq_server(xen_dmod, dom, ioservid, 397 1, start_addr, end_addr); 398 } 399 400 static inline void xen_map_io_section(domid_t dom, 401 ioservid_t ioservid, 402 MemoryRegionSection *section) 403 { 404 hwaddr start_addr = section->offset_within_address_space; 405 ram_addr_t size = int128_get64(section->size); 406 hwaddr end_addr = start_addr + size - 1; 407 408 if (use_default_ioreq_server) { 409 return; 410 } 411 412 trace_xen_map_portio_range(ioservid, start_addr, end_addr); 413 xendevicemodel_map_io_range_to_ioreq_server(xen_dmod, dom, ioservid, 0, 414 start_addr, end_addr); 415 } 416 417 static inline void xen_unmap_io_section(domid_t dom, 418 ioservid_t ioservid, 419 MemoryRegionSection *section) 420 { 421 hwaddr start_addr = section->offset_within_address_space; 422 ram_addr_t size = int128_get64(section->size); 423 hwaddr end_addr = start_addr + size - 1; 424 425 if (use_default_ioreq_server) { 426 return; 427 } 428 429 trace_xen_unmap_portio_range(ioservid, start_addr, end_addr); 430 xendevicemodel_unmap_io_range_from_ioreq_server(xen_dmod, dom, ioservid, 431 0, start_addr, end_addr); 432 } 433 434 static inline void xen_map_pcidev(domid_t dom, 435 ioservid_t ioservid, 436 PCIDevice *pci_dev) 437 { 438 if (use_default_ioreq_server) { 439 return; 440 } 441 442 trace_xen_map_pcidev(ioservid, pci_dev_bus_num(pci_dev), 443 PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); 444 xendevicemodel_map_pcidev_to_ioreq_server(xen_dmod, dom, ioservid, 0, 445 pci_dev_bus_num(pci_dev), 446 PCI_SLOT(pci_dev->devfn), 447 PCI_FUNC(pci_dev->devfn)); 448 } 449 450 static inline void xen_unmap_pcidev(domid_t dom, 451 ioservid_t ioservid, 452 PCIDevice *pci_dev) 453 { 454 if (use_default_ioreq_server) { 455 return; 456 } 457 458 trace_xen_unmap_pcidev(ioservid, pci_dev_bus_num(pci_dev), 459 PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn)); 460 xendevicemodel_unmap_pcidev_from_ioreq_server(xen_dmod, dom, ioservid, 0, 461 pci_dev_bus_num(pci_dev), 462 PCI_SLOT(pci_dev->devfn), 463 PCI_FUNC(pci_dev->devfn)); 464 } 465 466 static inline int xen_create_ioreq_server(domid_t dom, 467 ioservid_t *ioservid) 468 { 469 int rc = xendevicemodel_create_ioreq_server(xen_dmod, dom, 470 HVM_IOREQSRV_BUFIOREQ_ATOMIC, 471 ioservid); 472 473 if (rc == 0) { 474 trace_xen_ioreq_server_create(*ioservid); 475 return rc; 476 } 477 478 *ioservid = 0; 479 use_default_ioreq_server = true; 480 trace_xen_default_ioreq_server(); 481 482 return rc; 483 } 484 485 static inline void xen_destroy_ioreq_server(domid_t dom, 486 ioservid_t ioservid) 487 { 488 if (use_default_ioreq_server) { 489 return; 490 } 491 492 trace_xen_ioreq_server_destroy(ioservid); 493 xendevicemodel_destroy_ioreq_server(xen_dmod, dom, ioservid); 494 } 495 496 static inline int xen_get_ioreq_server_info(domid_t dom, 497 ioservid_t ioservid, 498 xen_pfn_t *ioreq_pfn, 499 xen_pfn_t *bufioreq_pfn, 500 evtchn_port_t *bufioreq_evtchn) 501 { 502 if (use_default_ioreq_server) { 503 return xen_get_default_ioreq_server_info(dom, ioreq_pfn, 504 bufioreq_pfn, 505 bufioreq_evtchn); 506 } 507 508 return xendevicemodel_get_ioreq_server_info(xen_dmod, dom, ioservid, 509 ioreq_pfn, bufioreq_pfn, 510 bufioreq_evtchn); 511 } 512 513 static inline int xen_set_ioreq_server_state(domid_t dom, 514 ioservid_t ioservid, 515 bool enable) 516 { 517 if (use_default_ioreq_server) { 518 return 0; 519 } 520 521 trace_xen_ioreq_server_state(ioservid, enable); 522 return xendevicemodel_set_ioreq_server_state(xen_dmod, dom, ioservid, 523 enable); 524 } 525 526 #endif /* QEMU_HW_XEN_NATIVE_H */ 527