qemu-kvm.h

   1 /*
   2  * qemu/kvm integration
   3  *
   4  * Copyright (C) 2006-2008 Qumranet Technologies
   5  *
   6  * Licensed under the terms of the GNU GPL version 2 or higher.
   7  */
   8 #ifndef THE_ORIGINAL_AND_TRUE_QEMU_KVM_H
   9 #define THE_ORIGINAL_AND_TRUE_QEMU_KVM_H
  10
  11 #include "cpu.h"
  12
  13 #include <signal.h>
  14 #include <stdlib.h>
  15
  16 #ifdef CONFIG_KVM
  17
  18 #if defined(__s390__)
  19 #include <asm/ptrace.h>
  20 #endif
  21
  22 #include <stdint.h>
  23
  24 #ifndef __user
  25 #define __user       /* temporary, until installed via make headers_install */
  26 #endif
  27
  28 #include <linux/kvm.h>
  29
  30 #include <signal.h>
  31
  32 /* FIXME: share this number with kvm */
  33 /* FIXME: or dynamically alloc/realloc regions */
  34 #ifdef __s390__
  35 #define KVM_MAX_NUM_MEM_REGIONS 1u
  36 #define MAX_VCPUS 64
  37 #define LIBKVM_S390_ORIGIN (0UL)
  38 #elif defined(__ia64__)
  39 #define KVM_MAX_NUM_MEM_REGIONS 32u
  40 #define MAX_VCPUS 256
  41 #else
  42 #define KVM_MAX_NUM_MEM_REGIONS 32u
  43 #define MAX_VCPUS 16
  44 #endif
  45
  46 /* kvm abi verison variable */
  47 extern int kvm_abi;
  48
  49 /**
  50  * \brief The KVM context
  51  *
  52  * The verbose KVM context
  53  */
  54
  55 struct kvm_context {
  56     void *opaque;
  57     /// is dirty pages logging enabled for all regions or not
  58     int dirty_pages_log_all;
  59     /// do not create in-kernel irqchip if set
  60     int no_irqchip_creation;
  61     /// in-kernel irqchip status
  62     int irqchip_in_kernel;
  63     /// ioctl to use to inject interrupts
  64     int irqchip_inject_ioctl;
  65     /// do not create in-kernel pit if set
  66     int no_pit_creation;
  67 #ifdef KVM_CAP_IRQ_ROUTING
  68     struct kvm_irq_routing *irq_routes;
  69     int nr_allocated_irq_routes;
  70 #endif
  71     void *used_gsi_bitmap;
  72     int max_gsi;
  73 };
  74
  75 typedef struct kvm_context *kvm_context_t;
  76
  77 #include "kvm.h"
  78 int kvm_alloc_kernel_memory(kvm_context_t kvm, unsigned long memory,
  79                             void **vm_mem);
  80 int kvm_alloc_userspace_memory(kvm_context_t kvm, unsigned long memory,
  81                                void **vm_mem);
  82
  83 int kvm_arch_create(kvm_context_t kvm, unsigned long phys_mem_bytes,
  84                     void **vm_mem);
  85
  86 int kvm_arch_run(CPUState *env);
  87
  88
  89 void kvm_show_code(CPUState *env);
  90
  91 int handle_halt(CPUState *env);
  92
  93 int handle_shutdown(kvm_context_t kvm, CPUState *env);
  94 void post_kvm_run(kvm_context_t kvm, CPUState *env);
  95 int pre_kvm_run(kvm_context_t kvm, CPUState *env);
  96 int handle_io_window(kvm_context_t kvm);
  97 int try_push_interrupts(kvm_context_t kvm);
  98
  99 #if defined(__x86_64__) || defined(__i386__)
 100 int kvm_get_msrs(CPUState *env, struct kvm_msr_entry *msrs, int n);
 101 int kvm_set_msrs(CPUState *env, struct kvm_msr_entry *msrs, int n);
 102 struct kvm_x86_mce;
 103 #endif
 104
 105 /*!
 106  * \brief Disable the in-kernel IRQCHIP creation
 107  *
 108  * In-kernel irqchip is enabled by default. If userspace irqchip is to be used,
 109  * this should be called prior to kvm_create().
 110  *
 111  * \param kvm Pointer to the kvm_context
 112  */
 113 void kvm_disable_irqchip_creation(kvm_context_t kvm);
 114
 115 /*!
 116  * \brief Disable the in-kernel PIT creation
 117  *
 118  * In-kernel pit is enabled by default. If userspace pit is to be used,
 119  * this should be called prior to kvm_create().
 120  *
 121  *  \param kvm Pointer to the kvm_context
 122  */
 123 void kvm_disable_pit_creation(kvm_context_t kvm);
 124
 125 /*!
 126  * \brief Create new virtual machine
 127  *
 128  * This creates a new virtual machine, maps physical RAM to it, and creates a
 129  * virtual CPU for it.\n
 130  * \n
 131  * Memory gets mapped for addresses 0->0xA0000, 0xC0000->phys_mem_bytes
 132  *
 133  * \param kvm Pointer to the current kvm_context
 134  * \param phys_mem_bytes The amount of physical ram you want the VM to have
 135  * \param phys_mem This pointer will be set to point to the memory that
 136  * kvm_create allocates for physical RAM
 137  * \return 0 on success
 138  */
 139 int kvm_create(kvm_context_t kvm, unsigned long phys_mem_bytes,
 140                void **phys_mem);
 141 int kvm_create_vm(kvm_context_t kvm);
 142 void kvm_create_irqchip(kvm_context_t kvm);
 143
 144 /*!
 145  * \brief Start the VCPU
 146  *
 147  * This starts the VCPU and virtualization is started.\n
 148  * \n
 149  * This function will not return until any of these conditions are met:
 150  * - An IO/MMIO handler does not return "0"
 151  * - An exception that neither the guest OS, nor KVM can handle occurs
 152  *
 153  * \note This function will call the callbacks registered in kvm_init()
 154  * to emulate those functions
 155  * \note If you at any point want to interrupt the VCPU, kvm_run() will
 156  * listen to the EINTR signal. This allows you to simulate external interrupts
 157  * and asyncronous IO.
 158  *
 159  * \param kvm Pointer to the current kvm_context
 160  * \param vcpu Which virtual CPU should be started
 161  * \return 0 on success, but you really shouldn't expect this function to
 162  * return except for when an error has occured, or when you have sent it
 163  * an EINTR signal.
 164  */
 165 int kvm_run(CPUState *env);
 166
 167 /*!
 168  * \brief Check if a vcpu is ready for interrupt injection
 169  *
 170  * This checks if vcpu interrupts are not masked by mov ss or sti.
 171  *
 172  * \param kvm Pointer to the current kvm_context
 173  * \param vcpu Which virtual CPU should get dumped
 174  * \return boolean indicating interrupt injection readiness
 175  */
 176 int kvm_is_ready_for_interrupt_injection(CPUState *env);
 177
 178 /*!
 179  * \brief Read VCPU registers
 180  *
 181  * This gets the GP registers from the VCPU and outputs them
 182  * into a kvm_regs structure
 183  *
 184  * \note This function returns a \b copy of the VCPUs registers.\n
 185  * If you wish to modify the VCPUs GP registers, you should call kvm_set_regs()
 186  *
 187  * \param kvm Pointer to the current kvm_context
 188  * \param vcpu Which virtual CPU should get dumped
 189  * \param regs Pointer to a kvm_regs which will be populated with the VCPUs
 190  * registers values
 191  * \return 0 on success
 192  */
 193 int kvm_get_regs(CPUState *env, struct kvm_regs *regs);
 194
 195 /*!
 196  * \brief Write VCPU registers
 197  *
 198  * This sets the GP registers on the VCPU from a kvm_regs structure
 199  *
 200  * \note When this function returns, the regs pointer and the data it points to
 201  * can be discarded
 202  * \param kvm Pointer to the current kvm_context
 203  * \param vcpu Which virtual CPU should get dumped
 204  * \param regs Pointer to a kvm_regs which will be populated with the VCPUs
 205  * registers values
 206  * \return 0 on success
 207  */
 208 int kvm_set_regs(CPUState *env, struct kvm_regs *regs);
 209
 210 #ifdef KVM_CAP_MP_STATE
 211 /*!
 212  *  * \brief Read VCPU MP state
 213  *
 214  */
 215 int kvm_get_mpstate(CPUState *env, struct kvm_mp_state *mp_state);
 216
 217 /*!
 218  *  * \brief Write VCPU MP state
 219  *
 220  */
 221 int kvm_set_mpstate(CPUState *env, struct kvm_mp_state *mp_state);
 222 #endif
 223
 224 /*!
 225  * \brief Simulate an external vectored interrupt
 226  *
 227  * This allows you to simulate an external vectored interrupt.
 228  *
 229  * \param kvm Pointer to the current kvm_context
 230  * \param vcpu Which virtual CPU should get dumped
 231  * \param irq Vector number
 232  * \return 0 on success
 233  */
 234 int kvm_inject_irq(CPUState *env, unsigned irq);
 235
 236 #if defined(__i386__) || defined(__x86_64__)
 237 /*!
 238  * \brief Setup a vcpu's cpuid instruction emulation
 239  *
 240  * Set up a table of cpuid function to cpuid outputs.\n
 241  *
 242  * \param kvm Pointer to the current kvm_context
 243  * \param vcpu Which virtual CPU should be initialized
 244  * \param nent number of entries to be installed
 245  * \param entries cpuid function entries table
 246  * \return 0 on success, or -errno on error
 247  */
 248 int kvm_setup_cpuid(CPUState *env, int nent,
 249                     struct kvm_cpuid_entry *entries);
 250
 251 /*!
 252  * \brief Setup a vcpu's cpuid instruction emulation
 253  *
 254  * Set up a table of cpuid function to cpuid outputs.
 255  * This call replaces the older kvm_setup_cpuid interface by adding a few
 256  * parameters to support cpuid functions that have sub-leaf values.
 257  *
 258  * \param kvm Pointer to the current kvm_context
 259  * \param vcpu Which virtual CPU should be initialized
 260  * \param nent number of entries to be installed
 261  * \param entries cpuid function entries table
 262  * \return 0 on success, or -errno on error
 263  */
 264 int kvm_setup_cpuid2(CPUState *env, int nent,
 265                      struct kvm_cpuid_entry2 *entries);
 266
 267 /*!
 268  * \brief Setting the number of shadow pages to be allocated to the vm
 269  *
 270  * \param kvm pointer to kvm_context
 271  * \param nrshadow_pages number of pages to be allocated
 272  */
 273 int kvm_set_shadow_pages(kvm_context_t kvm, unsigned int nrshadow_pages);
 274
 275 /*!
 276  * \brief Getting the number of shadow pages that are allocated to the vm
 277  *
 278  * \param kvm pointer to kvm_context
 279  * \param nrshadow_pages number of pages to be allocated
 280  */
 281 int kvm_get_shadow_pages(kvm_context_t kvm, unsigned int *nrshadow_pages);
 282
 283 #endif
 284
 285 /*!
 286  * \brief Dump VCPU registers
 287  *
 288  * This dumps some of the information that KVM has about a virtual CPU, namely:
 289  * - GP Registers
 290  *
 291  * A much more verbose version of this is available as kvm_dump_vcpu()
 292  *
 293  * \param kvm Pointer to the current kvm_context
 294  * \param vcpu Which virtual CPU should get dumped
 295  * \return 0 on success
 296  */
 297 void kvm_show_regs(CPUState *env);
 298
 299
 300 void *kvm_create_phys_mem(kvm_context_t, unsigned long phys_start,
 301                           unsigned long len, int log, int writable);
 302 void kvm_destroy_phys_mem(kvm_context_t, unsigned long phys_start,
 303                           unsigned long len);
 304
 305 int kvm_is_containing_region(kvm_context_t kvm, unsigned long phys_start,
 306                              unsigned long size);
 307 int kvm_register_phys_mem(kvm_context_t kvm, unsigned long phys_start,
 308                           void *userspace_addr, unsigned long len, int log);
 309 int kvm_get_dirty_pages_range(kvm_context_t kvm, unsigned long phys_addr,
 310                               unsigned long end_addr, void *opaque,
 311                               int (*cb)(unsigned long start,
 312                                         unsigned long len, void *bitmap,
 313                                         void *opaque));
 314 int kvm_register_coalesced_mmio(kvm_context_t kvm, uint64_t addr,
 315                                 uint32_t size);
 316 int kvm_unregister_coalesced_mmio(kvm_context_t kvm, uint64_t addr,
 317                                   uint32_t size);
 318
 319 /*!
 320  * \brief Get a bitmap of guest ram pages which are allocated to the guest.
 321  *
 322  * \param kvm Pointer to the current kvm_context
 323  * \param phys_addr Memory slot phys addr
 324  * \param bitmap Long aligned address of a big enough bitmap (one bit per page)
 325  */
 326 int kvm_get_mem_map(kvm_context_t kvm, unsigned long phys_addr, void *bitmap);
 327 int kvm_get_mem_map_range(kvm_context_t kvm, unsigned long phys_addr,
 328                           unsigned long len, void *buf, void *opaque,
 329                           int (*cb)(unsigned long start,
 330                                     unsigned long len, void *bitmap,
 331                                     void *opaque));
 332 int kvm_set_irq_level(kvm_context_t kvm, int irq, int level, int *status);
 333
 334 int kvm_dirty_pages_log_enable_slot(kvm_context_t kvm, uint64_t phys_start,
 335                                     uint64_t len);
 336 int kvm_dirty_pages_log_disable_slot(kvm_context_t kvm, uint64_t phys_start,
 337                                      uint64_t len);
 338 /*!
 339  * \brief Enable dirty-pages-logging for all memory regions
 340  *
 341  * \param kvm Pointer to the current kvm_context
 342  */
 343 int kvm_dirty_pages_log_enable_all(kvm_context_t kvm);
 344
 345 /*!
 346  * \brief Disable dirty-page-logging for some memory regions
 347  *
 348  * Disable dirty-pages-logging for those memory regions that were
 349  * created with dirty-page-logging disabled.
 350  *
 351  * \param kvm Pointer to the current kvm_context
 352  */
 353 int kvm_dirty_pages_log_reset(kvm_context_t kvm);
 354
 355 #ifdef KVM_CAP_IRQCHIP
 356 /*!
 357  * \brief Dump in kernel IRQCHIP contents
 358  *
 359  * Dump one of the in kernel irq chip devices, including PIC (master/slave)
 360  * and IOAPIC into a kvm_irqchip structure
 361  *
 362  * \param kvm Pointer to the current kvm_context
 363  * \param chip The irq chip device to be dumped
 364  */
 365 int kvm_get_irqchip(kvm_context_t kvm, struct kvm_irqchip *chip);
 366
 367 /*!
 368  * \brief Set in kernel IRQCHIP contents
 369  *
 370  * Write one of the in kernel irq chip devices, including PIC (master/slave)
 371  * and IOAPIC
 372  *
 373  *
 374  * \param kvm Pointer to the current kvm_context
 375  * \param chip THe irq chip device to be written
 376  */
 377 int kvm_set_irqchip(kvm_context_t kvm, struct kvm_irqchip *chip);
 378
 379 #if defined(__i386__) || defined(__x86_64__)
 380 /*!
 381  * \brief Get in kernel local APIC for vcpu
 382  *
 383  * Save the local apic state including the timer of a virtual CPU
 384  *
 385  * \param kvm Pointer to the current kvm_context
 386  * \param vcpu Which virtual CPU should be accessed
 387  * \param s Local apic state of the specific virtual CPU
 388  */
 389 int kvm_get_lapic(CPUState *env, struct kvm_lapic_state *s);
 390
 391 /*!
 392  * \brief Set in kernel local APIC for vcpu
 393  *
 394  * Restore the local apic state including the timer of a virtual CPU
 395  *
 396  * \param kvm Pointer to the current kvm_context
 397  * \param vcpu Which virtual CPU should be accessed
 398  * \param s Local apic state of the specific virtual CPU
 399  */
 400 int kvm_set_lapic(CPUState *env, struct kvm_lapic_state *s);
 401
 402 #endif
 403
 404 /*!
 405  * \brief Simulate an NMI
 406  *
 407  * This allows you to simulate a non-maskable interrupt.
 408  *
 409  * \param kvm Pointer to the current kvm_context
 410  * \param vcpu Which virtual CPU should get dumped
 411  * \return 0 on success
 412  */
 413 int kvm_inject_nmi(CPUState *env);
 414
 415 #endif
 416
 417 /*!
 418  * \brief Initialize coalesced MMIO
 419  *
 420  * Check for coalesced MMIO capability and store in context
 421  *
 422  * \param kvm Pointer to the current kvm_context
 423  */
 424 int kvm_init_coalesced_mmio(kvm_context_t kvm);
 425
 426 #ifdef KVM_CAP_PIT
 427
 428 #if defined(__i386__) || defined(__x86_64__)
 429 /*!
 430  * \brief Get in kernel PIT of the virtual domain
 431  *
 432  * Save the PIT state.
 433  *
 434  * \param kvm Pointer to the current kvm_context
 435  * \param s PIT state of the virtual domain
 436  */
 437 int kvm_get_pit(kvm_context_t kvm, struct kvm_pit_state *s);
 438
 439 /*!
 440  * \brief Set in kernel PIT of the virtual domain
 441  *
 442  * Restore the PIT state.
 443  * Timer would be retriggerred after restored.
 444  *
 445  * \param kvm Pointer to the current kvm_context
 446  * \param s PIT state of the virtual domain
 447  */
 448 int kvm_set_pit(kvm_context_t kvm, struct kvm_pit_state *s);
 449
 450 int kvm_reinject_control(kvm_context_t kvm, int pit_reinject);
 451
 452 #ifdef KVM_CAP_PIT_STATE2
 453 /*!
 454  * \brief Check for kvm support of kvm_pit_state2
 455  *
 456  * \param kvm Pointer to the current kvm_context
 457  * \return 0 on success
 458  */
 459 int kvm_has_pit_state2(kvm_context_t kvm);
 460
 461 /*!
 462  * \brief Set in kernel PIT state2 of the virtual domain
 463  *
 464  *
 465  * \param kvm Pointer to the current kvm_context
 466  * \param ps2 PIT state2 of the virtual domain
 467  * \return 0 on success
 468  */
 469 int kvm_set_pit2(kvm_context_t kvm, struct kvm_pit_state2 *ps2);
 470
 471 /*!
 472  * \brief Get in kernel PIT state2 of the virtual domain
 473  *
 474  *
 475  * \param kvm Pointer to the current kvm_context
 476  * \param ps2 PIT state2 of the virtual domain
 477  * \return 0 on success
 478  */
 479 int kvm_get_pit2(kvm_context_t kvm, struct kvm_pit_state2 *ps2);
 480
 481 #endif
 482 #endif
 483 #endif
 484
 485 #ifdef KVM_CAP_VAPIC
 486
 487 int kvm_enable_vapic(CPUState *env, uint64_t vapic);
 488
 489 #endif
 490
 491 #if defined(__s390__)
 492 int kvm_s390_initial_reset(kvm_context_t kvm, int slot);
 493 int kvm_s390_interrupt(kvm_context_t kvm, int slot,
 494                        struct kvm_s390_interrupt *kvmint);
 495 int kvm_s390_set_initial_psw(kvm_context_t kvm, int slot, psw_t psw);
 496 int kvm_s390_store_status(kvm_context_t kvm, int slot, unsigned long addr);
 497 #endif
 498
 499 #ifdef KVM_CAP_DEVICE_ASSIGNMENT
 500 /*!
 501  * \brief Notifies host kernel about a PCI device to be assigned to a guest
 502  *
 503  * Used for PCI device assignment, this function notifies the host
 504  * kernel about the assigning of the physical PCI device to a guest.
 505  *
 506  * \param kvm Pointer to the current kvm_context
 507  * \param assigned_dev Parameters, like bus, devfn number, etc
 508  */
 509 int kvm_assign_pci_device(kvm_context_t kvm,
 510                           struct kvm_assigned_pci_dev *assigned_dev);
 511
 512 /*!
 513  * \brief Assign IRQ for an assigned device
 514  *
 515  * Used for PCI device assignment, this function assigns IRQ numbers for
 516  * an physical device and guest IRQ handling.
 517  *
 518  * \param kvm Pointer to the current kvm_context
 519  * \param assigned_irq Parameters, like dev id, host irq, guest irq, etc
 520  */
 521 int kvm_assign_irq(kvm_context_t kvm, struct kvm_assigned_irq *assigned_irq);
 522
 523 #ifdef KVM_CAP_ASSIGN_DEV_IRQ
 524 /*!
 525  * \brief Deassign IRQ for an assigned device
 526  *
 527  * Used for PCI device assignment, this function deassigns IRQ numbers
 528  * for an assigned device.
 529  *
 530  * \param kvm Pointer to the current kvm_context
 531  * \param assigned_irq Parameters, like dev id, host irq, guest irq, etc
 532  */
 533 int kvm_deassign_irq(kvm_context_t kvm, struct kvm_assigned_irq *assigned_irq);
 534 #endif
 535 #endif
 536
 537 #ifdef KVM_CAP_DEVICE_DEASSIGNMENT
 538 /*!
 539  * \brief Notifies host kernel about a PCI device to be deassigned from a guest
 540  *
 541  * Used for hot remove PCI device, this function notifies the host
 542  * kernel about the deassigning of the physical PCI device from a guest.
 543  *
 544  * \param kvm Pointer to the current kvm_context
 545  * \param assigned_dev Parameters, like bus, devfn number, etc
 546  */
 547 int kvm_deassign_pci_device(kvm_context_t kvm,
 548                             struct kvm_assigned_pci_dev *assigned_dev);
 549 #endif
 550
 551 /*!
 552  * \brief Determines the number of gsis that can be routed
 553  *
 554  * Returns the number of distinct gsis that can be routed by kvm.  This is
 555  * also the number of distinct routes (if a gsi has two routes, than another
 556  * gsi cannot be used...)
 557  *
 558  * \param kvm Pointer to the current kvm_context
 559  */
 560 int kvm_get_gsi_count(kvm_context_t kvm);
 561
 562 /*!
 563  * \brief Clears the temporary irq routing table
 564  *
 565  * Clears the temporary irq routing table.  Nothing is committed to the
 566  * running VM.
 567  *
 568  */
 569 int kvm_clear_gsi_routes(void);
 570
 571 /*!
 572  * \brief Adds an irq route to the temporary irq routing table
 573  *
 574  * Adds an irq route to the temporary irq routing table.  Nothing is
 575  * committed to the running VM.
 576  */
 577 int kvm_add_irq_route(int gsi, int irqchip, int pin);
 578
 579 /*!
 580  * \brief Removes an irq route from the temporary irq routing table
 581  *
 582  * Adds an irq route to the temporary irq routing table.  Nothing is
 583  * committed to the running VM.
 584  */
 585 int kvm_del_irq_route(int gsi, int irqchip, int pin);
 586
 587 struct kvm_irq_routing_entry;
 588 /*!
 589  * \brief Adds a routing entry to the temporary irq routing table
 590  *
 591  * Adds a filled routing entry to the temporary irq routing table. Nothing is
 592  * committed to the running VM.
 593  */
 594 int kvm_add_routing_entry(struct kvm_irq_routing_entry *entry);
 595
 596 /*!
 597  * \brief Removes a routing from the temporary irq routing table
 598  *
 599  * Remove a routing to the temporary irq routing table.  Nothing is
 600  * committed to the running VM.
 601  */
 602 int kvm_del_routing_entry(struct kvm_irq_routing_entry *entry);
 603
 604 /*!
 605  * \brief Updates a routing in the temporary irq routing table
 606  *
 607  * Update a routing in the temporary irq routing table
 608  * with a new value. entry type and GSI can not be changed.
 609  * Nothing is committed to the running VM.
 610  */
 611 int kvm_update_routing_entry(struct kvm_irq_routing_entry *entry,
 612                              struct kvm_irq_routing_entry *newentry);
 613
 614
 615 /*!
 616  * \brief Create a file descriptor for injecting interrupts
 617  *
 618  * Creates an eventfd based file-descriptor that maps to a specific GSI
 619  * in the guest.  eventfd compliant signaling (write() from userspace, or
 620  * eventfd_signal() from kernelspace) will cause the GSI to inject
 621  * itself into the guest at the next available window.
 622  *
 623  * \param kvm Pointer to the current kvm_context
 624  * \param gsi GSI to assign to this fd
 625  * \param flags reserved, must be zero
 626  */
 627 int kvm_irqfd(kvm_context_t kvm, int gsi, int flags);
 628
 629 #ifdef KVM_CAP_DEVICE_MSIX
 630 int kvm_assign_set_msix_nr(kvm_context_t kvm,
 631                            struct kvm_assigned_msix_nr *msix_nr);
 632 int kvm_assign_set_msix_entry(kvm_context_t kvm,
 633                               struct kvm_assigned_msix_entry *entry);
 634 #endif
 635
 636 #else                           /* !CONFIG_KVM */
 637
 638 typedef struct kvm_context *kvm_context_t;
 639 typedef struct kvm_vcpu_context *kvm_vcpu_context_t;
 640
 641 struct kvm_pit_state {
 642 };
 643
 644 #endif                          /* !CONFIG_KVM */
 645
 646
 647 /*!
 648  * \brief Create new KVM context
 649  *
 650  * This creates a new kvm_context. A KVM context is a small area of data that
 651  * holds information about the KVM instance that gets created by this call.\n
 652  * This should always be your first call to KVM.
 653  *
 654  * \param opaque Not used
 655  * \return NULL on failure
 656  */
 657 int kvm_init(int smp_cpus);
 658
 659 int kvm_main_loop(void);
 660 int kvm_init_ap(void);
 661 int kvm_vcpu_inited(CPUState *env);
 662 void kvm_save_lapic(CPUState *env);
 663 void kvm_load_lapic(CPUState *env);
 664
 665 void kvm_hpet_enable_kpit(void);
 666 void kvm_hpet_disable_kpit(void);
 667
 668 int kvm_physical_memory_set_dirty_tracking(int enable);
 669
 670 void on_vcpu(CPUState *env, void (*func)(void *data), void *data);
 671 void qemu_kvm_call_with_env(void (*func)(void *), void *data, CPUState *env);
 672 void qemu_kvm_cpuid_on_env(CPUState *env);
 673 void kvm_inject_interrupt(CPUState *env, int mask);
 674 void kvm_update_after_sipi(CPUState *env);
 675 void kvm_update_interrupt_request(CPUState *env);
 676 #ifndef CONFIG_USER_ONLY
 677 void *kvm_cpu_create_phys_mem(target_phys_addr_t start_addr, unsigned long size,
 678                               int log, int writable);
 679
 680 void kvm_cpu_destroy_phys_mem(target_phys_addr_t start_addr,
 681                               unsigned long size);
 682 void kvm_qemu_log_memory(target_phys_addr_t start, target_phys_addr_t size,
 683                          int log);
 684 #endif
 685 int kvm_qemu_create_memory_alias(uint64_t phys_start, uint64_t len,
 686                                  uint64_t target_phys);
 687 int kvm_qemu_destroy_memory_alias(uint64_t phys_start);
 688
 689 int kvm_arch_qemu_create_context(void);
 690
 691 void kvm_arch_save_regs(CPUState *env);
 692 void kvm_arch_load_regs(CPUState *env, int level);
 693 int kvm_arch_has_work(CPUState *env);
 694 void kvm_arch_process_irqchip_events(CPUState *env);
 695 int kvm_arch_try_push_interrupts(void *opaque);
 696 void kvm_arch_push_nmi(void *opaque);
 697 void kvm_arch_cpu_reset(CPUState *env);
 698 int kvm_set_boot_cpu_id(uint32_t id);
 699
 700 void qemu_kvm_aio_wait_start(void);
 701 void qemu_kvm_aio_wait(void);
 702 void qemu_kvm_aio_wait_end(void);
 703
 704 void kvm_tpr_access_report(CPUState *env, uint64_t rip, int is_write);
 705
 706 int kvm_arch_init_irq_routing(void);
 707
 708 int kvm_mmio_read(void *opaque, uint64_t addr, uint8_t * data, int len);
 709 int kvm_mmio_write(void *opaque, uint64_t addr, uint8_t * data, int len);
 710
 711 #ifdef CONFIG_KVM_DEVICE_ASSIGNMENT
 712 struct ioperm_data;
 713
 714 void kvm_ioperm(CPUState *env, void *data);
 715 void kvm_add_ioperm_data(struct ioperm_data *data);
 716 void kvm_remove_ioperm_data(unsigned long start_port, unsigned long num);
 717 void kvm_arch_do_ioperm(void *_data);
 718 #endif
 719
 720 #define ALIGN(x, y)  (((x)+(y)-1) & ~((y)-1))
 721 #define BITMAP_SIZE(m) (ALIGN(((m)>>TARGET_PAGE_BITS), HOST_LONG_BITS) / 8)
 722
 723 #ifdef CONFIG_KVM
 724 #include "qemu-queue.h"
 725
 726 extern int kvm_irqchip;
 727 extern int kvm_pit;
 728 extern int kvm_pit_reinject;
 729 extern int kvm_nested;
 730 extern kvm_context_t kvm_context;
 731
 732 struct ioperm_data {
 733     unsigned long start_port;
 734     unsigned long num;
 735     int turn_on;
 736     QLIST_ENTRY(ioperm_data) entries;
 737 };
 738
 739 void qemu_kvm_cpu_stop(CPUState *env);
 740 int kvm_arch_halt(CPUState *env);
 741 int handle_tpr_access(void *opaque, CPUState *env, uint64_t rip,
 742                       int is_write);
 743
 744 #define qemu_kvm_has_gsi_routing() kvm_has_gsi_routing()
 745 #ifdef TARGET_I386
 746 #define qemu_kvm_has_pit_state2() kvm_has_pit_state2(kvm_context)
 747 #endif
 748 #else
 749 #define kvm_nested 0
 750 #define qemu_kvm_has_gsi_routing() (0)
 751 #ifdef TARGET_I386
 752 #define qemu_kvm_has_pit_state2() (0)
 753 #endif
 754 #define qemu_kvm_cpu_stop(env) do {} while(0)
 755 #endif
 756
 757 #ifdef CONFIG_KVM
 758
 759 typedef struct KVMSlot {
 760     target_phys_addr_t start_addr;
 761     ram_addr_t memory_size;
 762     ram_addr_t phys_offset;
 763     int slot;
 764     int flags;
 765 } KVMSlot;
 766
 767 typedef struct kvm_dirty_log KVMDirtyLog;
 768
 769 struct KVMState {
 770     KVMSlot slots[32];
 771     int fd;
 772     int vmfd;
 773     int coalesced_mmio;
 774 #ifdef KVM_CAP_COALESCED_MMIO
 775     struct kvm_coalesced_mmio_ring *coalesced_mmio_ring;
 776 #endif
 777     int broken_set_mem_region;
 778     int migration_log;
 779     int vcpu_events;
 780     int robust_singlestep;
 781     int debugregs;
 782 #ifdef KVM_CAP_SET_GUEST_DEBUG
 783     QTAILQ_HEAD(, kvm_sw_breakpoint) kvm_sw_breakpoints;
 784 #endif
 785     int irqchip_in_kernel;
 786     int pit_in_kernel;
 787     int xsave, xcrs;
 788
 789     struct kvm_context kvm_context;
 790 };
 791
 792 extern struct KVMState *kvm_state;
 793
 794 int kvm_tpr_enable_vapic(CPUState *env);
 795
 796 unsigned long kvm_get_thread_id(void);
 797 int kvm_cpu_is_stopped(CPUState *env);
 798
 799 #endif
 800
 801 #endif