include/hw/xen/xen_native.h

   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, &param);
 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, &param);
 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                           &param);
 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 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41500
 527 static inline int xendevicemodel_set_irq_level(xendevicemodel_handle *dmod,
 528                                                domid_t domid, uint32_t irq,
 529                                                unsigned int level)
 530 {
 531     return -1;
 532 }
 533 #endif
 534
 535 #if CONFIG_XEN_CTRL_INTERFACE_VERSION < 41700
 536 #define GUEST_VIRTIO_MMIO_BASE   xen_mk_ullong(0x02000000)
 537 #define GUEST_VIRTIO_MMIO_SIZE   xen_mk_ullong(0x00100000)
 538 #define GUEST_VIRTIO_MMIO_SPI_FIRST   33
 539 #define GUEST_VIRTIO_MMIO_SPI_LAST    43
 540 #endif
 541
 542 #if defined(__i386__) || defined(__x86_64__)
 543 #define GUEST_RAM_BANKS   2
 544 #define GUEST_RAM0_BASE   0x40000000ULL /* 3GB of low RAM @ 1GB */
 545 #define GUEST_RAM0_SIZE   0xc0000000ULL
 546 #define GUEST_RAM1_BASE   0x0200000000ULL /* 1016GB of RAM @ 8GB */
 547 #define GUEST_RAM1_SIZE   0xfe00000000ULL
 548 #endif
 549
 550 #endif /* QEMU_HW_XEN_NATIVE_H */