kvm.h 47 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2. #ifndef __LINUX_KVM_H
  3. #define __LINUX_KVM_H
  4. /*
  5. * Userspace interface for /dev/kvm - kernel based virtual machine
  6. *
  7. * Note: you must update KVM_API_VERSION if you change this interface.
  8. */
  9. #include <linux/const.h>
  10. #include <linux/types.h>
  11. #include <linux/ioctl.h>
  12. #include <asm/kvm.h>
  13. #define KVM_API_VERSION 12
  14. /*
  15. * Backwards-compatible definitions.
  16. */
  17. #define __KVM_HAVE_GUEST_DEBUG
  18. /* for KVM_SET_USER_MEMORY_REGION */
  19. struct kvm_userspace_memory_region {
  20. __u32 slot;
  21. __u32 flags;
  22. __u64 guest_phys_addr;
  23. __u64 memory_size; /* bytes */
  24. __u64 userspace_addr; /* start of the userspace allocated memory */
  25. };
  26. /* for KVM_SET_USER_MEMORY_REGION2 */
  27. struct kvm_userspace_memory_region2 {
  28. __u32 slot;
  29. __u32 flags;
  30. __u64 guest_phys_addr;
  31. __u64 memory_size;
  32. __u64 userspace_addr;
  33. __u64 guest_memfd_offset;
  34. __u32 guest_memfd;
  35. __u32 pad1;
  36. __u64 pad2[14];
  37. };
  38. /*
  39. * The bit 0 ~ bit 15 of kvm_userspace_memory_region::flags are visible for
  40. * userspace, other bits are reserved for kvm internal use which are defined
  41. * in include/linux/kvm_host.h.
  42. */
  43. #define KVM_MEM_LOG_DIRTY_PAGES (1UL << 0)
  44. #define KVM_MEM_READONLY (1UL << 1)
  45. #define KVM_MEM_GUEST_MEMFD (1UL << 2)
  46. /* for KVM_IRQ_LINE */
  47. struct kvm_irq_level {
  48. /*
  49. * ACPI gsi notion of irq.
  50. * For IA-64 (APIC model) IOAPIC0: irq 0-23; IOAPIC1: irq 24-47..
  51. * For X86 (standard AT mode) PIC0/1: irq 0-15. IOAPIC0: 0-23..
  52. * For ARM: See Documentation/virt/kvm/api.rst
  53. */
  54. union {
  55. __u32 irq;
  56. __s32 status;
  57. };
  58. __u32 level;
  59. };
  60. struct kvm_irqchip {
  61. __u32 chip_id;
  62. __u32 pad;
  63. union {
  64. char dummy[512]; /* reserving space */
  65. #ifdef __KVM_HAVE_PIT
  66. struct kvm_pic_state pic;
  67. #endif
  68. #ifdef __KVM_HAVE_IOAPIC
  69. struct kvm_ioapic_state ioapic;
  70. #endif
  71. } chip;
  72. };
  73. /* for KVM_CREATE_PIT2 */
  74. struct kvm_pit_config {
  75. __u32 flags;
  76. __u32 pad[15];
  77. };
  78. #define KVM_PIT_SPEAKER_DUMMY 1
  79. struct kvm_hyperv_exit {
  80. #define KVM_EXIT_HYPERV_SYNIC 1
  81. #define KVM_EXIT_HYPERV_HCALL 2
  82. #define KVM_EXIT_HYPERV_SYNDBG 3
  83. __u32 type;
  84. __u32 pad1;
  85. union {
  86. struct {
  87. __u32 msr;
  88. __u32 pad2;
  89. __u64 control;
  90. __u64 evt_page;
  91. __u64 msg_page;
  92. } synic;
  93. struct {
  94. __u64 input;
  95. __u64 result;
  96. __u64 params[2];
  97. } hcall;
  98. struct {
  99. __u32 msr;
  100. __u32 pad2;
  101. __u64 control;
  102. __u64 status;
  103. __u64 send_page;
  104. __u64 recv_page;
  105. __u64 pending_page;
  106. } syndbg;
  107. } u;
  108. };
  109. struct kvm_xen_exit {
  110. #define KVM_EXIT_XEN_HCALL 1
  111. __u32 type;
  112. union {
  113. struct {
  114. __u32 longmode;
  115. __u32 cpl;
  116. __u64 input;
  117. __u64 result;
  118. __u64 params[6];
  119. } hcall;
  120. } u;
  121. };
  122. #define KVM_S390_GET_SKEYS_NONE 1
  123. #define KVM_S390_SKEYS_MAX 1048576
  124. #define KVM_EXIT_UNKNOWN 0
  125. #define KVM_EXIT_EXCEPTION 1
  126. #define KVM_EXIT_IO 2
  127. #define KVM_EXIT_HYPERCALL 3
  128. #define KVM_EXIT_DEBUG 4
  129. #define KVM_EXIT_HLT 5
  130. #define KVM_EXIT_MMIO 6
  131. #define KVM_EXIT_IRQ_WINDOW_OPEN 7
  132. #define KVM_EXIT_SHUTDOWN 8
  133. #define KVM_EXIT_FAIL_ENTRY 9
  134. #define KVM_EXIT_INTR 10
  135. #define KVM_EXIT_SET_TPR 11
  136. #define KVM_EXIT_TPR_ACCESS 12
  137. #define KVM_EXIT_S390_SIEIC 13
  138. #define KVM_EXIT_S390_RESET 14
  139. #define KVM_EXIT_DCR 15 /* deprecated */
  140. #define KVM_EXIT_NMI 16
  141. #define KVM_EXIT_INTERNAL_ERROR 17
  142. #define KVM_EXIT_OSI 18
  143. #define KVM_EXIT_PAPR_HCALL 19
  144. #define KVM_EXIT_S390_UCONTROL 20
  145. #define KVM_EXIT_WATCHDOG 21
  146. #define KVM_EXIT_S390_TSCH 22
  147. #define KVM_EXIT_EPR 23
  148. #define KVM_EXIT_SYSTEM_EVENT 24
  149. #define KVM_EXIT_S390_STSI 25
  150. #define KVM_EXIT_IOAPIC_EOI 26
  151. #define KVM_EXIT_HYPERV 27
  152. #define KVM_EXIT_ARM_NISV 28
  153. #define KVM_EXIT_X86_RDMSR 29
  154. #define KVM_EXIT_X86_WRMSR 30
  155. #define KVM_EXIT_DIRTY_RING_FULL 31
  156. #define KVM_EXIT_AP_RESET_HOLD 32
  157. #define KVM_EXIT_X86_BUS_LOCK 33
  158. #define KVM_EXIT_XEN 34
  159. #define KVM_EXIT_RISCV_SBI 35
  160. #define KVM_EXIT_RISCV_CSR 36
  161. #define KVM_EXIT_NOTIFY 37
  162. #define KVM_EXIT_LOONGARCH_IOCSR 38
  163. #define KVM_EXIT_MEMORY_FAULT 39
  164. /* For KVM_EXIT_INTERNAL_ERROR */
  165. /* Emulate instruction failed. */
  166. #define KVM_INTERNAL_ERROR_EMULATION 1
  167. /* Encounter unexpected simultaneous exceptions. */
  168. #define KVM_INTERNAL_ERROR_SIMUL_EX 2
  169. /* Encounter unexpected vm-exit due to delivery event. */
  170. #define KVM_INTERNAL_ERROR_DELIVERY_EV 3
  171. /* Encounter unexpected vm-exit reason */
  172. #define KVM_INTERNAL_ERROR_UNEXPECTED_EXIT_REASON 4
  173. /* Flags that describe what fields in emulation_failure hold valid data. */
  174. #define KVM_INTERNAL_ERROR_EMULATION_FLAG_INSTRUCTION_BYTES (1ULL << 0)
  175. /* for KVM_RUN, returned by mmap(vcpu_fd, offset=0) */
  176. struct kvm_run {
  177. /* in */
  178. __u8 request_interrupt_window;
  179. __u8 immediate_exit;
  180. __u8 padding1[6];
  181. /* out */
  182. __u32 exit_reason;
  183. __u8 ready_for_interrupt_injection;
  184. __u8 if_flag;
  185. __u16 flags;
  186. /* in (pre_kvm_run), out (post_kvm_run) */
  187. __u64 cr8;
  188. __u64 apic_base;
  189. #ifdef __KVM_S390
  190. /* the processor status word for s390 */
  191. __u64 psw_mask; /* psw upper half */
  192. __u64 psw_addr; /* psw lower half */
  193. #endif
  194. union {
  195. /* KVM_EXIT_UNKNOWN */
  196. struct {
  197. __u64 hardware_exit_reason;
  198. } hw;
  199. /* KVM_EXIT_FAIL_ENTRY */
  200. struct {
  201. __u64 hardware_entry_failure_reason;
  202. __u32 cpu;
  203. } fail_entry;
  204. /* KVM_EXIT_EXCEPTION */
  205. struct {
  206. __u32 exception;
  207. __u32 error_code;
  208. } ex;
  209. /* KVM_EXIT_IO */
  210. struct {
  211. #define KVM_EXIT_IO_IN 0
  212. #define KVM_EXIT_IO_OUT 1
  213. __u8 direction;
  214. __u8 size; /* bytes */
  215. __u16 port;
  216. __u32 count;
  217. __u64 data_offset; /* relative to kvm_run start */
  218. } io;
  219. /* KVM_EXIT_DEBUG */
  220. struct {
  221. struct kvm_debug_exit_arch arch;
  222. } debug;
  223. /* KVM_EXIT_MMIO */
  224. struct {
  225. __u64 phys_addr;
  226. __u8 data[8];
  227. __u32 len;
  228. __u8 is_write;
  229. } mmio;
  230. /* KVM_EXIT_LOONGARCH_IOCSR */
  231. struct {
  232. __u64 phys_addr;
  233. __u8 data[8];
  234. __u32 len;
  235. __u8 is_write;
  236. } iocsr_io;
  237. /* KVM_EXIT_HYPERCALL */
  238. struct {
  239. __u64 nr;
  240. __u64 args[6];
  241. __u64 ret;
  242. union {
  243. __u32 longmode;
  244. __u64 flags;
  245. };
  246. } hypercall;
  247. /* KVM_EXIT_TPR_ACCESS */
  248. struct {
  249. __u64 rip;
  250. __u32 is_write;
  251. __u32 pad;
  252. } tpr_access;
  253. /* KVM_EXIT_S390_SIEIC */
  254. struct {
  255. __u8 icptcode;
  256. __u16 ipa;
  257. __u32 ipb;
  258. } s390_sieic;
  259. /* KVM_EXIT_S390_RESET */
  260. __u64 s390_reset_flags;
  261. /* KVM_EXIT_S390_UCONTROL */
  262. struct {
  263. __u64 trans_exc_code;
  264. __u32 pgm_code;
  265. } s390_ucontrol;
  266. /* KVM_EXIT_DCR (deprecated) */
  267. struct {
  268. __u32 dcrn;
  269. __u32 data;
  270. __u8 is_write;
  271. } dcr;
  272. /* KVM_EXIT_INTERNAL_ERROR */
  273. struct {
  274. __u32 suberror;
  275. /* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
  276. __u32 ndata;
  277. __u64 data[16];
  278. } internal;
  279. /*
  280. * KVM_INTERNAL_ERROR_EMULATION
  281. *
  282. * "struct emulation_failure" is an overlay of "struct internal"
  283. * that is used for the KVM_INTERNAL_ERROR_EMULATION sub-type of
  284. * KVM_EXIT_INTERNAL_ERROR. Note, unlike other internal error
  285. * sub-types, this struct is ABI! It also needs to be backwards
  286. * compatible with "struct internal". Take special care that
  287. * "ndata" is correct, that new fields are enumerated in "flags",
  288. * and that each flag enumerates fields that are 64-bit aligned
  289. * and sized (so that ndata+internal.data[] is valid/accurate).
  290. *
  291. * Space beyond the defined fields may be used to store arbitrary
  292. * debug information relating to the emulation failure. It is
  293. * accounted for in "ndata" but the format is unspecified and is
  294. * not represented in "flags". Any such information is *not* ABI!
  295. */
  296. struct {
  297. __u32 suberror;
  298. __u32 ndata;
  299. __u64 flags;
  300. union {
  301. struct {
  302. __u8 insn_size;
  303. __u8 insn_bytes[15];
  304. };
  305. };
  306. /* Arbitrary debug data may follow. */
  307. } emulation_failure;
  308. /* KVM_EXIT_OSI */
  309. struct {
  310. __u64 gprs[32];
  311. } osi;
  312. /* KVM_EXIT_PAPR_HCALL */
  313. struct {
  314. __u64 nr;
  315. __u64 ret;
  316. __u64 args[9];
  317. } papr_hcall;
  318. /* KVM_EXIT_S390_TSCH */
  319. struct {
  320. __u16 subchannel_id;
  321. __u16 subchannel_nr;
  322. __u32 io_int_parm;
  323. __u32 io_int_word;
  324. __u32 ipb;
  325. __u8 dequeued;
  326. } s390_tsch;
  327. /* KVM_EXIT_EPR */
  328. struct {
  329. __u32 epr;
  330. } epr;
  331. /* KVM_EXIT_SYSTEM_EVENT */
  332. struct {
  333. #define KVM_SYSTEM_EVENT_SHUTDOWN 1
  334. #define KVM_SYSTEM_EVENT_RESET 2
  335. #define KVM_SYSTEM_EVENT_CRASH 3
  336. #define KVM_SYSTEM_EVENT_WAKEUP 4
  337. #define KVM_SYSTEM_EVENT_SUSPEND 5
  338. #define KVM_SYSTEM_EVENT_SEV_TERM 6
  339. __u32 type;
  340. __u32 ndata;
  341. union {
  342. __u64 flags;
  343. __u64 data[16];
  344. };
  345. } system_event;
  346. /* KVM_EXIT_S390_STSI */
  347. struct {
  348. __u64 addr;
  349. __u8 ar;
  350. __u8 reserved;
  351. __u8 fc;
  352. __u8 sel1;
  353. __u16 sel2;
  354. } s390_stsi;
  355. /* KVM_EXIT_IOAPIC_EOI */
  356. struct {
  357. __u8 vector;
  358. } eoi;
  359. /* KVM_EXIT_HYPERV */
  360. struct kvm_hyperv_exit hyperv;
  361. /* KVM_EXIT_ARM_NISV */
  362. struct {
  363. __u64 esr_iss;
  364. __u64 fault_ipa;
  365. } arm_nisv;
  366. /* KVM_EXIT_X86_RDMSR / KVM_EXIT_X86_WRMSR */
  367. struct {
  368. __u8 error; /* user -> kernel */
  369. __u8 pad[7];
  370. #define KVM_MSR_EXIT_REASON_INVAL (1 << 0)
  371. #define KVM_MSR_EXIT_REASON_UNKNOWN (1 << 1)
  372. #define KVM_MSR_EXIT_REASON_FILTER (1 << 2)
  373. #define KVM_MSR_EXIT_REASON_VALID_MASK (KVM_MSR_EXIT_REASON_INVAL | \
  374. KVM_MSR_EXIT_REASON_UNKNOWN | \
  375. KVM_MSR_EXIT_REASON_FILTER)
  376. __u32 reason; /* kernel -> user */
  377. __u32 index; /* kernel -> user */
  378. __u64 data; /* kernel <-> user */
  379. } msr;
  380. /* KVM_EXIT_XEN */
  381. struct kvm_xen_exit xen;
  382. /* KVM_EXIT_RISCV_SBI */
  383. struct {
  384. unsigned long extension_id;
  385. unsigned long function_id;
  386. unsigned long args[6];
  387. unsigned long ret[2];
  388. } riscv_sbi;
  389. /* KVM_EXIT_RISCV_CSR */
  390. struct {
  391. unsigned long csr_num;
  392. unsigned long new_value;
  393. unsigned long write_mask;
  394. unsigned long ret_value;
  395. } riscv_csr;
  396. /* KVM_EXIT_NOTIFY */
  397. struct {
  398. #define KVM_NOTIFY_CONTEXT_INVALID (1 << 0)
  399. __u32 flags;
  400. } notify;
  401. /* KVM_EXIT_MEMORY_FAULT */
  402. struct {
  403. #define KVM_MEMORY_EXIT_FLAG_PRIVATE (1ULL << 3)
  404. __u64 flags;
  405. __u64 gpa;
  406. __u64 size;
  407. } memory_fault;
  408. /* Fix the size of the union. */
  409. char padding[256];
  410. };
  411. /* 2048 is the size of the char array used to bound/pad the size
  412. * of the union that holds sync regs.
  413. */
  414. #define SYNC_REGS_SIZE_BYTES 2048
  415. /*
  416. * shared registers between kvm and userspace.
  417. * kvm_valid_regs specifies the register classes set by the host
  418. * kvm_dirty_regs specified the register classes dirtied by userspace
  419. * struct kvm_sync_regs is architecture specific, as well as the
  420. * bits for kvm_valid_regs and kvm_dirty_regs
  421. */
  422. __u64 kvm_valid_regs;
  423. __u64 kvm_dirty_regs;
  424. union {
  425. struct kvm_sync_regs regs;
  426. char padding[SYNC_REGS_SIZE_BYTES];
  427. } s;
  428. };
  429. /* for KVM_REGISTER_COALESCED_MMIO / KVM_UNREGISTER_COALESCED_MMIO */
  430. struct kvm_coalesced_mmio_zone {
  431. __u64 addr;
  432. __u32 size;
  433. union {
  434. __u32 pad;
  435. __u32 pio;
  436. };
  437. };
  438. struct kvm_coalesced_mmio {
  439. __u64 phys_addr;
  440. __u32 len;
  441. union {
  442. __u32 pad;
  443. __u32 pio;
  444. };
  445. __u8 data[8];
  446. };
  447. struct kvm_coalesced_mmio_ring {
  448. __u32 first, last;
  449. struct kvm_coalesced_mmio coalesced_mmio[];
  450. };
  451. #define KVM_COALESCED_MMIO_MAX \
  452. ((PAGE_SIZE - sizeof(struct kvm_coalesced_mmio_ring)) / \
  453. sizeof(struct kvm_coalesced_mmio))
  454. /* for KVM_TRANSLATE */
  455. struct kvm_translation {
  456. /* in */
  457. __u64 linear_address;
  458. /* out */
  459. __u64 physical_address;
  460. __u8 valid;
  461. __u8 writeable;
  462. __u8 usermode;
  463. __u8 pad[5];
  464. };
  465. /* for KVM_INTERRUPT */
  466. struct kvm_interrupt {
  467. /* in */
  468. __u32 irq;
  469. };
  470. /* for KVM_GET_DIRTY_LOG */
  471. struct kvm_dirty_log {
  472. __u32 slot;
  473. __u32 padding1;
  474. union {
  475. void *dirty_bitmap; /* one bit per page */
  476. __u64 padding2;
  477. };
  478. };
  479. /* for KVM_CLEAR_DIRTY_LOG */
  480. struct kvm_clear_dirty_log {
  481. __u32 slot;
  482. __u32 num_pages;
  483. __u64 first_page;
  484. union {
  485. void *dirty_bitmap; /* one bit per page */
  486. __u64 padding2;
  487. };
  488. };
  489. /* for KVM_SET_SIGNAL_MASK */
  490. struct kvm_signal_mask {
  491. __u32 len;
  492. __u8 sigset[];
  493. };
  494. /* for KVM_TPR_ACCESS_REPORTING */
  495. struct kvm_tpr_access_ctl {
  496. __u32 enabled;
  497. __u32 flags;
  498. __u32 reserved[8];
  499. };
  500. /* for KVM_SET_VAPIC_ADDR */
  501. struct kvm_vapic_addr {
  502. __u64 vapic_addr;
  503. };
  504. /* for KVM_SET_MP_STATE */
  505. /* not all states are valid on all architectures */
  506. #define KVM_MP_STATE_RUNNABLE 0
  507. #define KVM_MP_STATE_UNINITIALIZED 1
  508. #define KVM_MP_STATE_INIT_RECEIVED 2
  509. #define KVM_MP_STATE_HALTED 3
  510. #define KVM_MP_STATE_SIPI_RECEIVED 4
  511. #define KVM_MP_STATE_STOPPED 5
  512. #define KVM_MP_STATE_CHECK_STOP 6
  513. #define KVM_MP_STATE_OPERATING 7
  514. #define KVM_MP_STATE_LOAD 8
  515. #define KVM_MP_STATE_AP_RESET_HOLD 9
  516. #define KVM_MP_STATE_SUSPENDED 10
  517. struct kvm_mp_state {
  518. __u32 mp_state;
  519. };
  520. /* for KVM_SET_GUEST_DEBUG */
  521. #define KVM_GUESTDBG_ENABLE 0x00000001
  522. #define KVM_GUESTDBG_SINGLESTEP 0x00000002
  523. struct kvm_guest_debug {
  524. __u32 control;
  525. __u32 pad;
  526. struct kvm_guest_debug_arch arch;
  527. };
  528. enum {
  529. kvm_ioeventfd_flag_nr_datamatch,
  530. kvm_ioeventfd_flag_nr_pio,
  531. kvm_ioeventfd_flag_nr_deassign,
  532. kvm_ioeventfd_flag_nr_virtio_ccw_notify,
  533. kvm_ioeventfd_flag_nr_fast_mmio,
  534. kvm_ioeventfd_flag_nr_max,
  535. };
  536. #define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch)
  537. #define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio)
  538. #define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign)
  539. #define KVM_IOEVENTFD_FLAG_VIRTIO_CCW_NOTIFY \
  540. (1 << kvm_ioeventfd_flag_nr_virtio_ccw_notify)
  541. #define KVM_IOEVENTFD_VALID_FLAG_MASK ((1 << kvm_ioeventfd_flag_nr_max) - 1)
  542. struct kvm_ioeventfd {
  543. __u64 datamatch;
  544. __u64 addr; /* legal pio/mmio address */
  545. __u32 len; /* 1, 2, 4, or 8 bytes; or 0 to ignore length */
  546. __s32 fd;
  547. __u32 flags;
  548. __u8 pad[36];
  549. };
  550. #define KVM_X86_DISABLE_EXITS_MWAIT (1 << 0)
  551. #define KVM_X86_DISABLE_EXITS_HLT (1 << 1)
  552. #define KVM_X86_DISABLE_EXITS_PAUSE (1 << 2)
  553. #define KVM_X86_DISABLE_EXITS_CSTATE (1 << 3)
  554. #define KVM_X86_DISABLE_VALID_EXITS (KVM_X86_DISABLE_EXITS_MWAIT | \
  555. KVM_X86_DISABLE_EXITS_HLT | \
  556. KVM_X86_DISABLE_EXITS_PAUSE | \
  557. KVM_X86_DISABLE_EXITS_CSTATE)
  558. /* for KVM_ENABLE_CAP */
  559. struct kvm_enable_cap {
  560. /* in */
  561. __u32 cap;
  562. __u32 flags;
  563. __u64 args[4];
  564. __u8 pad[64];
  565. };
  566. #define KVMIO 0xAE
  567. /* machine type bits, to be used as argument to KVM_CREATE_VM */
  568. #define KVM_VM_S390_UCONTROL 1
  569. /* on ppc, 0 indicate default, 1 should force HV and 2 PR */
  570. #define KVM_VM_PPC_HV 1
  571. #define KVM_VM_PPC_PR 2
  572. /* on MIPS, 0 indicates auto, 1 forces VZ ASE, 2 forces trap & emulate */
  573. #define KVM_VM_MIPS_AUTO 0
  574. #define KVM_VM_MIPS_VZ 1
  575. #define KVM_VM_MIPS_TE 2
  576. #define KVM_S390_SIE_PAGE_OFFSET 1
  577. /*
  578. * On arm64, machine type can be used to request the physical
  579. * address size for the VM. Bits[7-0] are reserved for the guest
  580. * PA size shift (i.e, log2(PA_Size)). For backward compatibility,
  581. * value 0 implies the default IPA size, 40bits.
  582. */
  583. #define KVM_VM_TYPE_ARM_IPA_SIZE_MASK 0xffULL
  584. #define KVM_VM_TYPE_ARM_IPA_SIZE(x) \
  585. ((x) & KVM_VM_TYPE_ARM_IPA_SIZE_MASK)
  586. /*
  587. * ioctls for /dev/kvm fds:
  588. */
  589. #define KVM_GET_API_VERSION _IO(KVMIO, 0x00)
  590. #define KVM_CREATE_VM _IO(KVMIO, 0x01) /* returns a VM fd */
  591. #define KVM_GET_MSR_INDEX_LIST _IOWR(KVMIO, 0x02, struct kvm_msr_list)
  592. #define KVM_S390_ENABLE_SIE _IO(KVMIO, 0x06)
  593. /*
  594. * Check if a kvm extension is available. Argument is extension number,
  595. * return is 1 (yes) or 0 (no, sorry).
  596. */
  597. #define KVM_CHECK_EXTENSION _IO(KVMIO, 0x03)
  598. /*
  599. * Get size for mmap(vcpu_fd)
  600. */
  601. #define KVM_GET_VCPU_MMAP_SIZE _IO(KVMIO, 0x04) /* in bytes */
  602. #define KVM_GET_SUPPORTED_CPUID _IOWR(KVMIO, 0x05, struct kvm_cpuid2)
  603. #define KVM_GET_EMULATED_CPUID _IOWR(KVMIO, 0x09, struct kvm_cpuid2)
  604. #define KVM_GET_MSR_FEATURE_INDEX_LIST _IOWR(KVMIO, 0x0a, struct kvm_msr_list)
  605. /*
  606. * Extension capability list.
  607. */
  608. #define KVM_CAP_IRQCHIP 0
  609. #define KVM_CAP_HLT 1
  610. #define KVM_CAP_MMU_SHADOW_CACHE_CONTROL 2
  611. #define KVM_CAP_USER_MEMORY 3
  612. #define KVM_CAP_SET_TSS_ADDR 4
  613. #define KVM_CAP_VAPIC 6
  614. #define KVM_CAP_EXT_CPUID 7
  615. #define KVM_CAP_CLOCKSOURCE 8
  616. #define KVM_CAP_NR_VCPUS 9 /* returns recommended max vcpus per vm */
  617. #define KVM_CAP_NR_MEMSLOTS 10 /* returns max memory slots per vm */
  618. #define KVM_CAP_PIT 11
  619. #define KVM_CAP_NOP_IO_DELAY 12
  620. #define KVM_CAP_PV_MMU 13
  621. #define KVM_CAP_MP_STATE 14
  622. #define KVM_CAP_COALESCED_MMIO 15
  623. #define KVM_CAP_SYNC_MMU 16 /* Changes to host mmap are reflected in guest */
  624. #define KVM_CAP_IOMMU 18
  625. /* Bug in KVM_SET_USER_MEMORY_REGION fixed: */
  626. #define KVM_CAP_DESTROY_MEMORY_REGION_WORKS 21
  627. #define KVM_CAP_USER_NMI 22
  628. #define KVM_CAP_SET_GUEST_DEBUG 23
  629. #ifdef __KVM_HAVE_PIT
  630. #define KVM_CAP_REINJECT_CONTROL 24
  631. #endif
  632. #define KVM_CAP_IRQ_ROUTING 25
  633. #define KVM_CAP_IRQ_INJECT_STATUS 26
  634. #define KVM_CAP_ASSIGN_DEV_IRQ 29
  635. /* Another bug in KVM_SET_USER_MEMORY_REGION fixed: */
  636. #define KVM_CAP_JOIN_MEMORY_REGIONS_WORKS 30
  637. #ifdef __KVM_HAVE_MCE
  638. #define KVM_CAP_MCE 31
  639. #endif
  640. #define KVM_CAP_IRQFD 32
  641. #ifdef __KVM_HAVE_PIT
  642. #define KVM_CAP_PIT2 33
  643. #endif
  644. #define KVM_CAP_SET_BOOT_CPU_ID 34
  645. #ifdef __KVM_HAVE_PIT_STATE2
  646. #define KVM_CAP_PIT_STATE2 35
  647. #endif
  648. #define KVM_CAP_IOEVENTFD 36
  649. #define KVM_CAP_SET_IDENTITY_MAP_ADDR 37
  650. #ifdef __KVM_HAVE_XEN_HVM
  651. #define KVM_CAP_XEN_HVM 38
  652. #endif
  653. #define KVM_CAP_ADJUST_CLOCK 39
  654. #define KVM_CAP_INTERNAL_ERROR_DATA 40
  655. #ifdef __KVM_HAVE_VCPU_EVENTS
  656. #define KVM_CAP_VCPU_EVENTS 41
  657. #endif
  658. #define KVM_CAP_S390_PSW 42
  659. #define KVM_CAP_PPC_SEGSTATE 43
  660. #define KVM_CAP_HYPERV 44
  661. #define KVM_CAP_HYPERV_VAPIC 45
  662. #define KVM_CAP_HYPERV_SPIN 46
  663. #define KVM_CAP_PCI_SEGMENT 47
  664. #define KVM_CAP_PPC_PAIRED_SINGLES 48
  665. #define KVM_CAP_INTR_SHADOW 49
  666. #ifdef __KVM_HAVE_DEBUGREGS
  667. #define KVM_CAP_DEBUGREGS 50
  668. #endif
  669. #define KVM_CAP_X86_ROBUST_SINGLESTEP 51
  670. #define KVM_CAP_PPC_OSI 52
  671. #define KVM_CAP_PPC_UNSET_IRQ 53
  672. #define KVM_CAP_ENABLE_CAP 54
  673. #ifdef __KVM_HAVE_XSAVE
  674. #define KVM_CAP_XSAVE 55
  675. #endif
  676. #ifdef __KVM_HAVE_XCRS
  677. #define KVM_CAP_XCRS 56
  678. #endif
  679. #define KVM_CAP_PPC_GET_PVINFO 57
  680. #define KVM_CAP_PPC_IRQ_LEVEL 58
  681. #define KVM_CAP_ASYNC_PF 59
  682. #define KVM_CAP_TSC_CONTROL 60
  683. #define KVM_CAP_GET_TSC_KHZ 61
  684. #define KVM_CAP_PPC_BOOKE_SREGS 62
  685. #define KVM_CAP_SPAPR_TCE 63
  686. #define KVM_CAP_PPC_SMT 64
  687. #define KVM_CAP_PPC_RMA 65
  688. #define KVM_CAP_MAX_VCPUS 66 /* returns max vcpus per vm */
  689. #define KVM_CAP_PPC_HIOR 67
  690. #define KVM_CAP_PPC_PAPR 68
  691. #define KVM_CAP_SW_TLB 69
  692. #define KVM_CAP_ONE_REG 70
  693. #define KVM_CAP_S390_GMAP 71
  694. #define KVM_CAP_TSC_DEADLINE_TIMER 72
  695. #define KVM_CAP_S390_UCONTROL 73
  696. #define KVM_CAP_SYNC_REGS 74
  697. #define KVM_CAP_PCI_2_3 75
  698. #define KVM_CAP_KVMCLOCK_CTRL 76
  699. #define KVM_CAP_SIGNAL_MSI 77
  700. #define KVM_CAP_PPC_GET_SMMU_INFO 78
  701. #define KVM_CAP_S390_COW 79
  702. #define KVM_CAP_PPC_ALLOC_HTAB 80
  703. #define KVM_CAP_READONLY_MEM 81
  704. #define KVM_CAP_IRQFD_RESAMPLE 82
  705. #define KVM_CAP_PPC_BOOKE_WATCHDOG 83
  706. #define KVM_CAP_PPC_HTAB_FD 84
  707. #define KVM_CAP_S390_CSS_SUPPORT 85
  708. #define KVM_CAP_PPC_EPR 86
  709. #define KVM_CAP_ARM_PSCI 87
  710. #define KVM_CAP_ARM_SET_DEVICE_ADDR 88
  711. #define KVM_CAP_DEVICE_CTRL 89
  712. #define KVM_CAP_IRQ_MPIC 90
  713. #define KVM_CAP_PPC_RTAS 91
  714. #define KVM_CAP_IRQ_XICS 92
  715. #define KVM_CAP_ARM_EL1_32BIT 93
  716. #define KVM_CAP_SPAPR_MULTITCE 94
  717. #define KVM_CAP_EXT_EMUL_CPUID 95
  718. #define KVM_CAP_HYPERV_TIME 96
  719. #define KVM_CAP_IOAPIC_POLARITY_IGNORED 97
  720. #define KVM_CAP_ENABLE_CAP_VM 98
  721. #define KVM_CAP_S390_IRQCHIP 99
  722. #define KVM_CAP_IOEVENTFD_NO_LENGTH 100
  723. #define KVM_CAP_VM_ATTRIBUTES 101
  724. #define KVM_CAP_ARM_PSCI_0_2 102
  725. #define KVM_CAP_PPC_FIXUP_HCALL 103
  726. #define KVM_CAP_PPC_ENABLE_HCALL 104
  727. #define KVM_CAP_CHECK_EXTENSION_VM 105
  728. #define KVM_CAP_S390_USER_SIGP 106
  729. #define KVM_CAP_S390_VECTOR_REGISTERS 107
  730. #define KVM_CAP_S390_MEM_OP 108
  731. #define KVM_CAP_S390_USER_STSI 109
  732. #define KVM_CAP_S390_SKEYS 110
  733. #define KVM_CAP_MIPS_FPU 111
  734. #define KVM_CAP_MIPS_MSA 112
  735. #define KVM_CAP_S390_INJECT_IRQ 113
  736. #define KVM_CAP_S390_IRQ_STATE 114
  737. #define KVM_CAP_PPC_HWRNG 115
  738. #define KVM_CAP_DISABLE_QUIRKS 116
  739. #define KVM_CAP_X86_SMM 117
  740. #define KVM_CAP_MULTI_ADDRESS_SPACE 118
  741. #define KVM_CAP_GUEST_DEBUG_HW_BPS 119
  742. #define KVM_CAP_GUEST_DEBUG_HW_WPS 120
  743. #define KVM_CAP_SPLIT_IRQCHIP 121
  744. #define KVM_CAP_IOEVENTFD_ANY_LENGTH 122
  745. #define KVM_CAP_HYPERV_SYNIC 123
  746. #define KVM_CAP_S390_RI 124
  747. #define KVM_CAP_SPAPR_TCE_64 125
  748. #define KVM_CAP_ARM_PMU_V3 126
  749. #define KVM_CAP_VCPU_ATTRIBUTES 127
  750. #define KVM_CAP_MAX_VCPU_ID 128
  751. #define KVM_CAP_X2APIC_API 129
  752. #define KVM_CAP_S390_USER_INSTR0 130
  753. #define KVM_CAP_MSI_DEVID 131
  754. #define KVM_CAP_PPC_HTM 132
  755. #define KVM_CAP_SPAPR_RESIZE_HPT 133
  756. #define KVM_CAP_PPC_MMU_RADIX 134
  757. #define KVM_CAP_PPC_MMU_HASH_V3 135
  758. #define KVM_CAP_IMMEDIATE_EXIT 136
  759. #define KVM_CAP_MIPS_VZ 137
  760. #define KVM_CAP_MIPS_TE 138
  761. #define KVM_CAP_MIPS_64BIT 139
  762. #define KVM_CAP_S390_GS 140
  763. #define KVM_CAP_S390_AIS 141
  764. #define KVM_CAP_SPAPR_TCE_VFIO 142
  765. #define KVM_CAP_X86_DISABLE_EXITS 143
  766. #define KVM_CAP_ARM_USER_IRQ 144
  767. #define KVM_CAP_S390_CMMA_MIGRATION 145
  768. #define KVM_CAP_PPC_FWNMI 146
  769. #define KVM_CAP_PPC_SMT_POSSIBLE 147
  770. #define KVM_CAP_HYPERV_SYNIC2 148
  771. #define KVM_CAP_HYPERV_VP_INDEX 149
  772. #define KVM_CAP_S390_AIS_MIGRATION 150
  773. #define KVM_CAP_PPC_GET_CPU_CHAR 151
  774. #define KVM_CAP_S390_BPB 152
  775. #define KVM_CAP_GET_MSR_FEATURES 153
  776. #define KVM_CAP_HYPERV_EVENTFD 154
  777. #define KVM_CAP_HYPERV_TLBFLUSH 155
  778. #define KVM_CAP_S390_HPAGE_1M 156
  779. #define KVM_CAP_NESTED_STATE 157
  780. #define KVM_CAP_ARM_INJECT_SERROR_ESR 158
  781. #define KVM_CAP_MSR_PLATFORM_INFO 159
  782. #define KVM_CAP_PPC_NESTED_HV 160
  783. #define KVM_CAP_HYPERV_SEND_IPI 161
  784. #define KVM_CAP_COALESCED_PIO 162
  785. #define KVM_CAP_HYPERV_ENLIGHTENED_VMCS 163
  786. #define KVM_CAP_EXCEPTION_PAYLOAD 164
  787. #define KVM_CAP_ARM_VM_IPA_SIZE 165
  788. #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT 166 /* Obsolete */
  789. #define KVM_CAP_HYPERV_CPUID 167
  790. #define KVM_CAP_MANUAL_DIRTY_LOG_PROTECT2 168
  791. #define KVM_CAP_PPC_IRQ_XIVE 169
  792. #define KVM_CAP_ARM_SVE 170
  793. #define KVM_CAP_ARM_PTRAUTH_ADDRESS 171
  794. #define KVM_CAP_ARM_PTRAUTH_GENERIC 172
  795. #define KVM_CAP_PMU_EVENT_FILTER 173
  796. #define KVM_CAP_ARM_IRQ_LINE_LAYOUT_2 174
  797. #define KVM_CAP_HYPERV_DIRECT_TLBFLUSH 175
  798. #define KVM_CAP_PPC_GUEST_DEBUG_SSTEP 176
  799. #define KVM_CAP_ARM_NISV_TO_USER 177
  800. #define KVM_CAP_ARM_INJECT_EXT_DABT 178
  801. #define KVM_CAP_S390_VCPU_RESETS 179
  802. #define KVM_CAP_S390_PROTECTED 180
  803. #define KVM_CAP_PPC_SECURE_GUEST 181
  804. #define KVM_CAP_HALT_POLL 182
  805. #define KVM_CAP_ASYNC_PF_INT 183
  806. #define KVM_CAP_LAST_CPU 184
  807. #define KVM_CAP_SMALLER_MAXPHYADDR 185
  808. #define KVM_CAP_S390_DIAG318 186
  809. #define KVM_CAP_STEAL_TIME 187
  810. #define KVM_CAP_X86_USER_SPACE_MSR 188
  811. #define KVM_CAP_X86_MSR_FILTER 189
  812. #define KVM_CAP_ENFORCE_PV_FEATURE_CPUID 190
  813. #define KVM_CAP_SYS_HYPERV_CPUID 191
  814. #define KVM_CAP_DIRTY_LOG_RING 192
  815. #define KVM_CAP_X86_BUS_LOCK_EXIT 193
  816. #define KVM_CAP_PPC_DAWR1 194
  817. #define KVM_CAP_SET_GUEST_DEBUG2 195
  818. #define KVM_CAP_SGX_ATTRIBUTE 196
  819. #define KVM_CAP_VM_COPY_ENC_CONTEXT_FROM 197
  820. #define KVM_CAP_PTP_KVM 198
  821. #define KVM_CAP_HYPERV_ENFORCE_CPUID 199
  822. #define KVM_CAP_SREGS2 200
  823. #define KVM_CAP_EXIT_HYPERCALL 201
  824. #define KVM_CAP_PPC_RPT_INVALIDATE 202
  825. #define KVM_CAP_BINARY_STATS_FD 203
  826. #define KVM_CAP_EXIT_ON_EMULATION_FAILURE 204
  827. #define KVM_CAP_ARM_MTE 205
  828. #define KVM_CAP_VM_MOVE_ENC_CONTEXT_FROM 206
  829. #define KVM_CAP_VM_GPA_BITS 207
  830. #define KVM_CAP_XSAVE2 208
  831. #define KVM_CAP_SYS_ATTRIBUTES 209
  832. #define KVM_CAP_PPC_AIL_MODE_3 210
  833. #define KVM_CAP_S390_MEM_OP_EXTENSION 211
  834. #define KVM_CAP_PMU_CAPABILITY 212
  835. #define KVM_CAP_DISABLE_QUIRKS2 213
  836. #define KVM_CAP_VM_TSC_CONTROL 214
  837. #define KVM_CAP_SYSTEM_EVENT_DATA 215
  838. #define KVM_CAP_ARM_SYSTEM_SUSPEND 216
  839. #define KVM_CAP_S390_PROTECTED_DUMP 217
  840. #define KVM_CAP_X86_TRIPLE_FAULT_EVENT 218
  841. #define KVM_CAP_X86_NOTIFY_VMEXIT 219
  842. #define KVM_CAP_VM_DISABLE_NX_HUGE_PAGES 220
  843. #define KVM_CAP_S390_ZPCI_OP 221
  844. #define KVM_CAP_S390_CPU_TOPOLOGY 222
  845. #define KVM_CAP_DIRTY_LOG_RING_ACQ_REL 223
  846. #define KVM_CAP_S390_PROTECTED_ASYNC_DISABLE 224
  847. #define KVM_CAP_DIRTY_LOG_RING_WITH_BITMAP 225
  848. #define KVM_CAP_PMU_EVENT_MASKED_EVENTS 226
  849. #define KVM_CAP_COUNTER_OFFSET 227
  850. #define KVM_CAP_ARM_EAGER_SPLIT_CHUNK_SIZE 228
  851. #define KVM_CAP_ARM_SUPPORTED_BLOCK_SIZES 229
  852. #define KVM_CAP_ARM_SUPPORTED_REG_MASK_RANGES 230
  853. #define KVM_CAP_USER_MEMORY2 231
  854. #define KVM_CAP_MEMORY_FAULT_INFO 232
  855. #define KVM_CAP_MEMORY_ATTRIBUTES 233
  856. #define KVM_CAP_GUEST_MEMFD 234
  857. #define KVM_CAP_VM_TYPES 235
  858. struct kvm_irq_routing_irqchip {
  859. __u32 irqchip;
  860. __u32 pin;
  861. };
  862. struct kvm_irq_routing_msi {
  863. __u32 address_lo;
  864. __u32 address_hi;
  865. __u32 data;
  866. union {
  867. __u32 pad;
  868. __u32 devid;
  869. };
  870. };
  871. struct kvm_irq_routing_s390_adapter {
  872. __u64 ind_addr;
  873. __u64 summary_addr;
  874. __u64 ind_offset;
  875. __u32 summary_offset;
  876. __u32 adapter_id;
  877. };
  878. struct kvm_irq_routing_hv_sint {
  879. __u32 vcpu;
  880. __u32 sint;
  881. };
  882. struct kvm_irq_routing_xen_evtchn {
  883. __u32 port;
  884. __u32 vcpu;
  885. __u32 priority;
  886. };
  887. #define KVM_IRQ_ROUTING_XEN_EVTCHN_PRIO_2LEVEL ((__u32)(-1))
  888. /* gsi routing entry types */
  889. #define KVM_IRQ_ROUTING_IRQCHIP 1
  890. #define KVM_IRQ_ROUTING_MSI 2
  891. #define KVM_IRQ_ROUTING_S390_ADAPTER 3
  892. #define KVM_IRQ_ROUTING_HV_SINT 4
  893. #define KVM_IRQ_ROUTING_XEN_EVTCHN 5
  894. struct kvm_irq_routing_entry {
  895. __u32 gsi;
  896. __u32 type;
  897. __u32 flags;
  898. __u32 pad;
  899. union {
  900. struct kvm_irq_routing_irqchip irqchip;
  901. struct kvm_irq_routing_msi msi;
  902. struct kvm_irq_routing_s390_adapter adapter;
  903. struct kvm_irq_routing_hv_sint hv_sint;
  904. struct kvm_irq_routing_xen_evtchn xen_evtchn;
  905. __u32 pad[8];
  906. } u;
  907. };
  908. struct kvm_irq_routing {
  909. __u32 nr;
  910. __u32 flags;
  911. struct kvm_irq_routing_entry entries[];
  912. };
  913. #define KVM_IRQFD_FLAG_DEASSIGN (1 << 0)
  914. /*
  915. * Available with KVM_CAP_IRQFD_RESAMPLE
  916. *
  917. * KVM_IRQFD_FLAG_RESAMPLE indicates resamplefd is valid and specifies
  918. * the irqfd to operate in resampling mode for level triggered interrupt
  919. * emulation. See Documentation/virt/kvm/api.rst.
  920. */
  921. #define KVM_IRQFD_FLAG_RESAMPLE (1 << 1)
  922. struct kvm_irqfd {
  923. __u32 fd;
  924. __u32 gsi;
  925. __u32 flags;
  926. __u32 resamplefd;
  927. __u8 pad[16];
  928. };
  929. /* For KVM_CAP_ADJUST_CLOCK */
  930. /* Do not use 1, KVM_CHECK_EXTENSION returned it before we had flags. */
  931. #define KVM_CLOCK_TSC_STABLE 2
  932. #define KVM_CLOCK_REALTIME (1 << 2)
  933. #define KVM_CLOCK_HOST_TSC (1 << 3)
  934. struct kvm_clock_data {
  935. __u64 clock;
  936. __u32 flags;
  937. __u32 pad0;
  938. __u64 realtime;
  939. __u64 host_tsc;
  940. __u32 pad[4];
  941. };
  942. /* For KVM_CAP_SW_TLB */
  943. #define KVM_MMU_FSL_BOOKE_NOHV 0
  944. #define KVM_MMU_FSL_BOOKE_HV 1
  945. struct kvm_config_tlb {
  946. __u64 params;
  947. __u64 array;
  948. __u32 mmu_type;
  949. __u32 array_len;
  950. };
  951. struct kvm_dirty_tlb {
  952. __u64 bitmap;
  953. __u32 num_dirty;
  954. };
  955. /* Available with KVM_CAP_ONE_REG */
  956. #define KVM_REG_ARCH_MASK 0xff00000000000000ULL
  957. #define KVM_REG_GENERIC 0x0000000000000000ULL
  958. /*
  959. * Architecture specific registers are to be defined in arch headers and
  960. * ORed with the arch identifier.
  961. */
  962. #define KVM_REG_PPC 0x1000000000000000ULL
  963. #define KVM_REG_X86 0x2000000000000000ULL
  964. #define KVM_REG_IA64 0x3000000000000000ULL
  965. #define KVM_REG_ARM 0x4000000000000000ULL
  966. #define KVM_REG_S390 0x5000000000000000ULL
  967. #define KVM_REG_ARM64 0x6000000000000000ULL
  968. #define KVM_REG_MIPS 0x7000000000000000ULL
  969. #define KVM_REG_RISCV 0x8000000000000000ULL
  970. #define KVM_REG_LOONGARCH 0x9000000000000000ULL
  971. #define KVM_REG_SIZE_SHIFT 52
  972. #define KVM_REG_SIZE_MASK 0x00f0000000000000ULL
  973. #define KVM_REG_SIZE_U8 0x0000000000000000ULL
  974. #define KVM_REG_SIZE_U16 0x0010000000000000ULL
  975. #define KVM_REG_SIZE_U32 0x0020000000000000ULL
  976. #define KVM_REG_SIZE_U64 0x0030000000000000ULL
  977. #define KVM_REG_SIZE_U128 0x0040000000000000ULL
  978. #define KVM_REG_SIZE_U256 0x0050000000000000ULL
  979. #define KVM_REG_SIZE_U512 0x0060000000000000ULL
  980. #define KVM_REG_SIZE_U1024 0x0070000000000000ULL
  981. #define KVM_REG_SIZE_U2048 0x0080000000000000ULL
  982. struct kvm_reg_list {
  983. __u64 n; /* number of regs */
  984. __u64 reg[];
  985. };
  986. struct kvm_one_reg {
  987. __u64 id;
  988. __u64 addr;
  989. };
  990. #define KVM_MSI_VALID_DEVID (1U << 0)
  991. struct kvm_msi {
  992. __u32 address_lo;
  993. __u32 address_hi;
  994. __u32 data;
  995. __u32 flags;
  996. __u32 devid;
  997. __u8 pad[12];
  998. };
  999. struct kvm_arm_device_addr {
  1000. __u64 id;
  1001. __u64 addr;
  1002. };
  1003. /*
  1004. * Device control API, available with KVM_CAP_DEVICE_CTRL
  1005. */
  1006. #define KVM_CREATE_DEVICE_TEST 1
  1007. struct kvm_create_device {
  1008. __u32 type; /* in: KVM_DEV_TYPE_xxx */
  1009. __u32 fd; /* out: device handle */
  1010. __u32 flags; /* in: KVM_CREATE_DEVICE_xxx */
  1011. };
  1012. struct kvm_device_attr {
  1013. __u32 flags; /* no flags currently defined */
  1014. __u32 group; /* device-defined */
  1015. __u64 attr; /* group-defined */
  1016. __u64 addr; /* userspace address of attr data */
  1017. };
  1018. #define KVM_DEV_VFIO_FILE 1
  1019. #define KVM_DEV_VFIO_FILE_ADD 1
  1020. #define KVM_DEV_VFIO_FILE_DEL 2
  1021. /* KVM_DEV_VFIO_GROUP aliases are for compile time uapi compatibility */
  1022. #define KVM_DEV_VFIO_GROUP KVM_DEV_VFIO_FILE
  1023. #define KVM_DEV_VFIO_GROUP_ADD KVM_DEV_VFIO_FILE_ADD
  1024. #define KVM_DEV_VFIO_GROUP_DEL KVM_DEV_VFIO_FILE_DEL
  1025. #define KVM_DEV_VFIO_GROUP_SET_SPAPR_TCE 3
  1026. enum kvm_device_type {
  1027. KVM_DEV_TYPE_FSL_MPIC_20 = 1,
  1028. #define KVM_DEV_TYPE_FSL_MPIC_20 KVM_DEV_TYPE_FSL_MPIC_20
  1029. KVM_DEV_TYPE_FSL_MPIC_42,
  1030. #define KVM_DEV_TYPE_FSL_MPIC_42 KVM_DEV_TYPE_FSL_MPIC_42
  1031. KVM_DEV_TYPE_XICS,
  1032. #define KVM_DEV_TYPE_XICS KVM_DEV_TYPE_XICS
  1033. KVM_DEV_TYPE_VFIO,
  1034. #define KVM_DEV_TYPE_VFIO KVM_DEV_TYPE_VFIO
  1035. KVM_DEV_TYPE_ARM_VGIC_V2,
  1036. #define KVM_DEV_TYPE_ARM_VGIC_V2 KVM_DEV_TYPE_ARM_VGIC_V2
  1037. KVM_DEV_TYPE_FLIC,
  1038. #define KVM_DEV_TYPE_FLIC KVM_DEV_TYPE_FLIC
  1039. KVM_DEV_TYPE_ARM_VGIC_V3,
  1040. #define KVM_DEV_TYPE_ARM_VGIC_V3 KVM_DEV_TYPE_ARM_VGIC_V3
  1041. KVM_DEV_TYPE_ARM_VGIC_ITS,
  1042. #define KVM_DEV_TYPE_ARM_VGIC_ITS KVM_DEV_TYPE_ARM_VGIC_ITS
  1043. KVM_DEV_TYPE_XIVE,
  1044. #define KVM_DEV_TYPE_XIVE KVM_DEV_TYPE_XIVE
  1045. KVM_DEV_TYPE_ARM_PV_TIME,
  1046. #define KVM_DEV_TYPE_ARM_PV_TIME KVM_DEV_TYPE_ARM_PV_TIME
  1047. KVM_DEV_TYPE_RISCV_AIA,
  1048. #define KVM_DEV_TYPE_RISCV_AIA KVM_DEV_TYPE_RISCV_AIA
  1049. KVM_DEV_TYPE_MAX,
  1050. };
  1051. struct kvm_vfio_spapr_tce {
  1052. __s32 groupfd;
  1053. __s32 tablefd;
  1054. };
  1055. /*
  1056. * KVM_CREATE_VCPU receives as a parameter the vcpu slot, and returns
  1057. * a vcpu fd.
  1058. */
  1059. #define KVM_CREATE_VCPU _IO(KVMIO, 0x41)
  1060. #define KVM_GET_DIRTY_LOG _IOW(KVMIO, 0x42, struct kvm_dirty_log)
  1061. #define KVM_SET_NR_MMU_PAGES _IO(KVMIO, 0x44)
  1062. #define KVM_GET_NR_MMU_PAGES _IO(KVMIO, 0x45) /* deprecated */
  1063. #define KVM_SET_USER_MEMORY_REGION _IOW(KVMIO, 0x46, \
  1064. struct kvm_userspace_memory_region)
  1065. #define KVM_SET_TSS_ADDR _IO(KVMIO, 0x47)
  1066. #define KVM_SET_IDENTITY_MAP_ADDR _IOW(KVMIO, 0x48, __u64)
  1067. #define KVM_SET_USER_MEMORY_REGION2 _IOW(KVMIO, 0x49, \
  1068. struct kvm_userspace_memory_region2)
  1069. /* enable ucontrol for s390 */
  1070. #define KVM_S390_UCAS_MAP _IOW(KVMIO, 0x50, struct kvm_s390_ucas_mapping)
  1071. #define KVM_S390_UCAS_UNMAP _IOW(KVMIO, 0x51, struct kvm_s390_ucas_mapping)
  1072. #define KVM_S390_VCPU_FAULT _IOW(KVMIO, 0x52, unsigned long)
  1073. /* Device model IOC */
  1074. #define KVM_CREATE_IRQCHIP _IO(KVMIO, 0x60)
  1075. #define KVM_IRQ_LINE _IOW(KVMIO, 0x61, struct kvm_irq_level)
  1076. #define KVM_GET_IRQCHIP _IOWR(KVMIO, 0x62, struct kvm_irqchip)
  1077. #define KVM_SET_IRQCHIP _IOR(KVMIO, 0x63, struct kvm_irqchip)
  1078. #define KVM_CREATE_PIT _IO(KVMIO, 0x64)
  1079. #define KVM_GET_PIT _IOWR(KVMIO, 0x65, struct kvm_pit_state)
  1080. #define KVM_SET_PIT _IOR(KVMIO, 0x66, struct kvm_pit_state)
  1081. #define KVM_IRQ_LINE_STATUS _IOWR(KVMIO, 0x67, struct kvm_irq_level)
  1082. #define KVM_REGISTER_COALESCED_MMIO \
  1083. _IOW(KVMIO, 0x67, struct kvm_coalesced_mmio_zone)
  1084. #define KVM_UNREGISTER_COALESCED_MMIO \
  1085. _IOW(KVMIO, 0x68, struct kvm_coalesced_mmio_zone)
  1086. #define KVM_SET_GSI_ROUTING _IOW(KVMIO, 0x6a, struct kvm_irq_routing)
  1087. #define KVM_REINJECT_CONTROL _IO(KVMIO, 0x71)
  1088. #define KVM_IRQFD _IOW(KVMIO, 0x76, struct kvm_irqfd)
  1089. #define KVM_CREATE_PIT2 _IOW(KVMIO, 0x77, struct kvm_pit_config)
  1090. #define KVM_SET_BOOT_CPU_ID _IO(KVMIO, 0x78)
  1091. #define KVM_IOEVENTFD _IOW(KVMIO, 0x79, struct kvm_ioeventfd)
  1092. #define KVM_XEN_HVM_CONFIG _IOW(KVMIO, 0x7a, struct kvm_xen_hvm_config)
  1093. #define KVM_SET_CLOCK _IOW(KVMIO, 0x7b, struct kvm_clock_data)
  1094. #define KVM_GET_CLOCK _IOR(KVMIO, 0x7c, struct kvm_clock_data)
  1095. /* Available with KVM_CAP_PIT_STATE2 */
  1096. #define KVM_GET_PIT2 _IOR(KVMIO, 0x9f, struct kvm_pit_state2)
  1097. #define KVM_SET_PIT2 _IOW(KVMIO, 0xa0, struct kvm_pit_state2)
  1098. /* Available with KVM_CAP_PPC_GET_PVINFO */
  1099. #define KVM_PPC_GET_PVINFO _IOW(KVMIO, 0xa1, struct kvm_ppc_pvinfo)
  1100. /* Available with KVM_CAP_TSC_CONTROL for a vCPU, or with
  1101. * KVM_CAP_VM_TSC_CONTROL to set defaults for a VM */
  1102. #define KVM_SET_TSC_KHZ _IO(KVMIO, 0xa2)
  1103. #define KVM_GET_TSC_KHZ _IO(KVMIO, 0xa3)
  1104. /* Available with KVM_CAP_SIGNAL_MSI */
  1105. #define KVM_SIGNAL_MSI _IOW(KVMIO, 0xa5, struct kvm_msi)
  1106. /* Available with KVM_CAP_PPC_GET_SMMU_INFO */
  1107. #define KVM_PPC_GET_SMMU_INFO _IOR(KVMIO, 0xa6, struct kvm_ppc_smmu_info)
  1108. /* Available with KVM_CAP_PPC_ALLOC_HTAB */
  1109. #define KVM_PPC_ALLOCATE_HTAB _IOWR(KVMIO, 0xa7, __u32)
  1110. #define KVM_CREATE_SPAPR_TCE _IOW(KVMIO, 0xa8, struct kvm_create_spapr_tce)
  1111. #define KVM_CREATE_SPAPR_TCE_64 _IOW(KVMIO, 0xa8, \
  1112. struct kvm_create_spapr_tce_64)
  1113. /* Available with KVM_CAP_RMA */
  1114. #define KVM_ALLOCATE_RMA _IOR(KVMIO, 0xa9, struct kvm_allocate_rma)
  1115. /* Available with KVM_CAP_PPC_HTAB_FD */
  1116. #define KVM_PPC_GET_HTAB_FD _IOW(KVMIO, 0xaa, struct kvm_get_htab_fd)
  1117. /* Available with KVM_CAP_ARM_SET_DEVICE_ADDR */
  1118. #define KVM_ARM_SET_DEVICE_ADDR _IOW(KVMIO, 0xab, struct kvm_arm_device_addr)
  1119. /* Available with KVM_CAP_PPC_RTAS */
  1120. #define KVM_PPC_RTAS_DEFINE_TOKEN _IOW(KVMIO, 0xac, struct kvm_rtas_token_args)
  1121. /* Available with KVM_CAP_SPAPR_RESIZE_HPT */
  1122. #define KVM_PPC_RESIZE_HPT_PREPARE _IOR(KVMIO, 0xad, struct kvm_ppc_resize_hpt)
  1123. #define KVM_PPC_RESIZE_HPT_COMMIT _IOR(KVMIO, 0xae, struct kvm_ppc_resize_hpt)
  1124. /* Available with KVM_CAP_PPC_RADIX_MMU or KVM_CAP_PPC_HASH_MMU_V3 */
  1125. #define KVM_PPC_CONFIGURE_V3_MMU _IOW(KVMIO, 0xaf, struct kvm_ppc_mmuv3_cfg)
  1126. /* Available with KVM_CAP_PPC_RADIX_MMU */
  1127. #define KVM_PPC_GET_RMMU_INFO _IOW(KVMIO, 0xb0, struct kvm_ppc_rmmu_info)
  1128. /* Available with KVM_CAP_PPC_GET_CPU_CHAR */
  1129. #define KVM_PPC_GET_CPU_CHAR _IOR(KVMIO, 0xb1, struct kvm_ppc_cpu_char)
  1130. /* Available with KVM_CAP_PMU_EVENT_FILTER */
  1131. #define KVM_SET_PMU_EVENT_FILTER _IOW(KVMIO, 0xb2, struct kvm_pmu_event_filter)
  1132. #define KVM_PPC_SVM_OFF _IO(KVMIO, 0xb3)
  1133. #define KVM_ARM_MTE_COPY_TAGS _IOR(KVMIO, 0xb4, struct kvm_arm_copy_mte_tags)
  1134. /* Available with KVM_CAP_COUNTER_OFFSET */
  1135. #define KVM_ARM_SET_COUNTER_OFFSET _IOW(KVMIO, 0xb5, struct kvm_arm_counter_offset)
  1136. #define KVM_ARM_GET_REG_WRITABLE_MASKS _IOR(KVMIO, 0xb6, struct reg_mask_range)
  1137. /* ioctl for vm fd */
  1138. #define KVM_CREATE_DEVICE _IOWR(KVMIO, 0xe0, struct kvm_create_device)
  1139. /* ioctls for fds returned by KVM_CREATE_DEVICE */
  1140. #define KVM_SET_DEVICE_ATTR _IOW(KVMIO, 0xe1, struct kvm_device_attr)
  1141. #define KVM_GET_DEVICE_ATTR _IOW(KVMIO, 0xe2, struct kvm_device_attr)
  1142. #define KVM_HAS_DEVICE_ATTR _IOW(KVMIO, 0xe3, struct kvm_device_attr)
  1143. /*
  1144. * ioctls for vcpu fds
  1145. */
  1146. #define KVM_RUN _IO(KVMIO, 0x80)
  1147. #define KVM_GET_REGS _IOR(KVMIO, 0x81, struct kvm_regs)
  1148. #define KVM_SET_REGS _IOW(KVMIO, 0x82, struct kvm_regs)
  1149. #define KVM_GET_SREGS _IOR(KVMIO, 0x83, struct kvm_sregs)
  1150. #define KVM_SET_SREGS _IOW(KVMIO, 0x84, struct kvm_sregs)
  1151. #define KVM_TRANSLATE _IOWR(KVMIO, 0x85, struct kvm_translation)
  1152. #define KVM_INTERRUPT _IOW(KVMIO, 0x86, struct kvm_interrupt)
  1153. #define KVM_GET_MSRS _IOWR(KVMIO, 0x88, struct kvm_msrs)
  1154. #define KVM_SET_MSRS _IOW(KVMIO, 0x89, struct kvm_msrs)
  1155. #define KVM_SET_CPUID _IOW(KVMIO, 0x8a, struct kvm_cpuid)
  1156. #define KVM_SET_SIGNAL_MASK _IOW(KVMIO, 0x8b, struct kvm_signal_mask)
  1157. #define KVM_GET_FPU _IOR(KVMIO, 0x8c, struct kvm_fpu)
  1158. #define KVM_SET_FPU _IOW(KVMIO, 0x8d, struct kvm_fpu)
  1159. #define KVM_GET_LAPIC _IOR(KVMIO, 0x8e, struct kvm_lapic_state)
  1160. #define KVM_SET_LAPIC _IOW(KVMIO, 0x8f, struct kvm_lapic_state)
  1161. #define KVM_SET_CPUID2 _IOW(KVMIO, 0x90, struct kvm_cpuid2)
  1162. #define KVM_GET_CPUID2 _IOWR(KVMIO, 0x91, struct kvm_cpuid2)
  1163. /* Available with KVM_CAP_VAPIC */
  1164. #define KVM_TPR_ACCESS_REPORTING _IOWR(KVMIO, 0x92, struct kvm_tpr_access_ctl)
  1165. /* Available with KVM_CAP_VAPIC */
  1166. #define KVM_SET_VAPIC_ADDR _IOW(KVMIO, 0x93, struct kvm_vapic_addr)
  1167. /* valid for virtual machine (for floating interrupt)_and_ vcpu */
  1168. #define KVM_S390_INTERRUPT _IOW(KVMIO, 0x94, struct kvm_s390_interrupt)
  1169. /* store status for s390 */
  1170. #define KVM_S390_STORE_STATUS_NOADDR (-1ul)
  1171. #define KVM_S390_STORE_STATUS_PREFIXED (-2ul)
  1172. #define KVM_S390_STORE_STATUS _IOW(KVMIO, 0x95, unsigned long)
  1173. /* initial ipl psw for s390 */
  1174. #define KVM_S390_SET_INITIAL_PSW _IOW(KVMIO, 0x96, struct kvm_s390_psw)
  1175. /* initial reset for s390 */
  1176. #define KVM_S390_INITIAL_RESET _IO(KVMIO, 0x97)
  1177. #define KVM_GET_MP_STATE _IOR(KVMIO, 0x98, struct kvm_mp_state)
  1178. #define KVM_SET_MP_STATE _IOW(KVMIO, 0x99, struct kvm_mp_state)
  1179. /* Available with KVM_CAP_USER_NMI */
  1180. #define KVM_NMI _IO(KVMIO, 0x9a)
  1181. /* Available with KVM_CAP_SET_GUEST_DEBUG */
  1182. #define KVM_SET_GUEST_DEBUG _IOW(KVMIO, 0x9b, struct kvm_guest_debug)
  1183. /* MCE for x86 */
  1184. #define KVM_X86_SETUP_MCE _IOW(KVMIO, 0x9c, __u64)
  1185. #define KVM_X86_GET_MCE_CAP_SUPPORTED _IOR(KVMIO, 0x9d, __u64)
  1186. #define KVM_X86_SET_MCE _IOW(KVMIO, 0x9e, struct kvm_x86_mce)
  1187. /* Available with KVM_CAP_VCPU_EVENTS */
  1188. #define KVM_GET_VCPU_EVENTS _IOR(KVMIO, 0x9f, struct kvm_vcpu_events)
  1189. #define KVM_SET_VCPU_EVENTS _IOW(KVMIO, 0xa0, struct kvm_vcpu_events)
  1190. /* Available with KVM_CAP_DEBUGREGS */
  1191. #define KVM_GET_DEBUGREGS _IOR(KVMIO, 0xa1, struct kvm_debugregs)
  1192. #define KVM_SET_DEBUGREGS _IOW(KVMIO, 0xa2, struct kvm_debugregs)
  1193. /*
  1194. * vcpu version available with KVM_CAP_ENABLE_CAP
  1195. * vm version available with KVM_CAP_ENABLE_CAP_VM
  1196. */
  1197. #define KVM_ENABLE_CAP _IOW(KVMIO, 0xa3, struct kvm_enable_cap)
  1198. /* Available with KVM_CAP_XSAVE */
  1199. #define KVM_GET_XSAVE _IOR(KVMIO, 0xa4, struct kvm_xsave)
  1200. #define KVM_SET_XSAVE _IOW(KVMIO, 0xa5, struct kvm_xsave)
  1201. /* Available with KVM_CAP_XCRS */
  1202. #define KVM_GET_XCRS _IOR(KVMIO, 0xa6, struct kvm_xcrs)
  1203. #define KVM_SET_XCRS _IOW(KVMIO, 0xa7, struct kvm_xcrs)
  1204. /* Available with KVM_CAP_SW_TLB */
  1205. #define KVM_DIRTY_TLB _IOW(KVMIO, 0xaa, struct kvm_dirty_tlb)
  1206. /* Available with KVM_CAP_ONE_REG */
  1207. #define KVM_GET_ONE_REG _IOW(KVMIO, 0xab, struct kvm_one_reg)
  1208. #define KVM_SET_ONE_REG _IOW(KVMIO, 0xac, struct kvm_one_reg)
  1209. /* VM is being stopped by host */
  1210. #define KVM_KVMCLOCK_CTRL _IO(KVMIO, 0xad)
  1211. #define KVM_ARM_VCPU_INIT _IOW(KVMIO, 0xae, struct kvm_vcpu_init)
  1212. #define KVM_ARM_PREFERRED_TARGET _IOR(KVMIO, 0xaf, struct kvm_vcpu_init)
  1213. #define KVM_GET_REG_LIST _IOWR(KVMIO, 0xb0, struct kvm_reg_list)
  1214. /* Available with KVM_CAP_S390_MEM_OP */
  1215. #define KVM_S390_MEM_OP _IOW(KVMIO, 0xb1, struct kvm_s390_mem_op)
  1216. /* Available with KVM_CAP_S390_SKEYS */
  1217. #define KVM_S390_GET_SKEYS _IOW(KVMIO, 0xb2, struct kvm_s390_skeys)
  1218. #define KVM_S390_SET_SKEYS _IOW(KVMIO, 0xb3, struct kvm_s390_skeys)
  1219. /* Available with KVM_CAP_S390_INJECT_IRQ */
  1220. #define KVM_S390_IRQ _IOW(KVMIO, 0xb4, struct kvm_s390_irq)
  1221. /* Available with KVM_CAP_S390_IRQ_STATE */
  1222. #define KVM_S390_SET_IRQ_STATE _IOW(KVMIO, 0xb5, struct kvm_s390_irq_state)
  1223. #define KVM_S390_GET_IRQ_STATE _IOW(KVMIO, 0xb6, struct kvm_s390_irq_state)
  1224. /* Available with KVM_CAP_X86_SMM */
  1225. #define KVM_SMI _IO(KVMIO, 0xb7)
  1226. /* Available with KVM_CAP_S390_CMMA_MIGRATION */
  1227. #define KVM_S390_GET_CMMA_BITS _IOWR(KVMIO, 0xb8, struct kvm_s390_cmma_log)
  1228. #define KVM_S390_SET_CMMA_BITS _IOW(KVMIO, 0xb9, struct kvm_s390_cmma_log)
  1229. /* Memory Encryption Commands */
  1230. #define KVM_MEMORY_ENCRYPT_OP _IOWR(KVMIO, 0xba, unsigned long)
  1231. struct kvm_enc_region {
  1232. __u64 addr;
  1233. __u64 size;
  1234. };
  1235. #define KVM_MEMORY_ENCRYPT_REG_REGION _IOR(KVMIO, 0xbb, struct kvm_enc_region)
  1236. #define KVM_MEMORY_ENCRYPT_UNREG_REGION _IOR(KVMIO, 0xbc, struct kvm_enc_region)
  1237. /* Available with KVM_CAP_HYPERV_EVENTFD */
  1238. #define KVM_HYPERV_EVENTFD _IOW(KVMIO, 0xbd, struct kvm_hyperv_eventfd)
  1239. /* Available with KVM_CAP_NESTED_STATE */
  1240. #define KVM_GET_NESTED_STATE _IOWR(KVMIO, 0xbe, struct kvm_nested_state)
  1241. #define KVM_SET_NESTED_STATE _IOW(KVMIO, 0xbf, struct kvm_nested_state)
  1242. /* Available with KVM_CAP_MANUAL_DIRTY_LOG_PROTECT_2 */
  1243. #define KVM_CLEAR_DIRTY_LOG _IOWR(KVMIO, 0xc0, struct kvm_clear_dirty_log)
  1244. /* Available with KVM_CAP_HYPERV_CPUID (vcpu) / KVM_CAP_SYS_HYPERV_CPUID (system) */
  1245. #define KVM_GET_SUPPORTED_HV_CPUID _IOWR(KVMIO, 0xc1, struct kvm_cpuid2)
  1246. /* Available with KVM_CAP_ARM_SVE */
  1247. #define KVM_ARM_VCPU_FINALIZE _IOW(KVMIO, 0xc2, int)
  1248. /* Available with KVM_CAP_S390_VCPU_RESETS */
  1249. #define KVM_S390_NORMAL_RESET _IO(KVMIO, 0xc3)
  1250. #define KVM_S390_CLEAR_RESET _IO(KVMIO, 0xc4)
  1251. /* Available with KVM_CAP_S390_PROTECTED */
  1252. #define KVM_S390_PV_COMMAND _IOWR(KVMIO, 0xc5, struct kvm_pv_cmd)
  1253. /* Available with KVM_CAP_X86_MSR_FILTER */
  1254. #define KVM_X86_SET_MSR_FILTER _IOW(KVMIO, 0xc6, struct kvm_msr_filter)
  1255. /* Available with KVM_CAP_DIRTY_LOG_RING */
  1256. #define KVM_RESET_DIRTY_RINGS _IO(KVMIO, 0xc7)
  1257. /* Per-VM Xen attributes */
  1258. #define KVM_XEN_HVM_GET_ATTR _IOWR(KVMIO, 0xc8, struct kvm_xen_hvm_attr)
  1259. #define KVM_XEN_HVM_SET_ATTR _IOW(KVMIO, 0xc9, struct kvm_xen_hvm_attr)
  1260. /* Per-vCPU Xen attributes */
  1261. #define KVM_XEN_VCPU_GET_ATTR _IOWR(KVMIO, 0xca, struct kvm_xen_vcpu_attr)
  1262. #define KVM_XEN_VCPU_SET_ATTR _IOW(KVMIO, 0xcb, struct kvm_xen_vcpu_attr)
  1263. /* Available with KVM_CAP_XEN_HVM / KVM_XEN_HVM_CONFIG_EVTCHN_SEND */
  1264. #define KVM_XEN_HVM_EVTCHN_SEND _IOW(KVMIO, 0xd0, struct kvm_irq_routing_xen_evtchn)
  1265. #define KVM_GET_SREGS2 _IOR(KVMIO, 0xcc, struct kvm_sregs2)
  1266. #define KVM_SET_SREGS2 _IOW(KVMIO, 0xcd, struct kvm_sregs2)
  1267. #define KVM_DIRTY_LOG_MANUAL_PROTECT_ENABLE (1 << 0)
  1268. #define KVM_DIRTY_LOG_INITIALLY_SET (1 << 1)
  1269. /*
  1270. * Arch needs to define the macro after implementing the dirty ring
  1271. * feature. KVM_DIRTY_LOG_PAGE_OFFSET should be defined as the
  1272. * starting page offset of the dirty ring structures.
  1273. */
  1274. #ifndef KVM_DIRTY_LOG_PAGE_OFFSET
  1275. #define KVM_DIRTY_LOG_PAGE_OFFSET 0
  1276. #endif
  1277. /*
  1278. * KVM dirty GFN flags, defined as:
  1279. *
  1280. * |---------------+---------------+--------------|
  1281. * | bit 1 (reset) | bit 0 (dirty) | Status |
  1282. * |---------------+---------------+--------------|
  1283. * | 0 | 0 | Invalid GFN |
  1284. * | 0 | 1 | Dirty GFN |
  1285. * | 1 | X | GFN to reset |
  1286. * |---------------+---------------+--------------|
  1287. *
  1288. * Lifecycle of a dirty GFN goes like:
  1289. *
  1290. * dirtied harvested reset
  1291. * 00 -----------> 01 -------------> 1X -------+
  1292. * ^ |
  1293. * | |
  1294. * +------------------------------------------+
  1295. *
  1296. * The userspace program is only responsible for the 01->1X state
  1297. * conversion after harvesting an entry. Also, it must not skip any
  1298. * dirty bits, so that dirty bits are always harvested in sequence.
  1299. */
  1300. #define KVM_DIRTY_GFN_F_DIRTY _BITUL(0)
  1301. #define KVM_DIRTY_GFN_F_RESET _BITUL(1)
  1302. #define KVM_DIRTY_GFN_F_MASK 0x3
  1303. /*
  1304. * KVM dirty rings should be mapped at KVM_DIRTY_LOG_PAGE_OFFSET of
  1305. * per-vcpu mmaped regions as an array of struct kvm_dirty_gfn. The
  1306. * size of the gfn buffer is decided by the first argument when
  1307. * enabling KVM_CAP_DIRTY_LOG_RING.
  1308. */
  1309. struct kvm_dirty_gfn {
  1310. __u32 flags;
  1311. __u32 slot;
  1312. __u64 offset;
  1313. };
  1314. #define KVM_BUS_LOCK_DETECTION_OFF (1 << 0)
  1315. #define KVM_BUS_LOCK_DETECTION_EXIT (1 << 1)
  1316. #define KVM_PMU_CAP_DISABLE (1 << 0)
  1317. /**
  1318. * struct kvm_stats_header - Header of per vm/vcpu binary statistics data.
  1319. * @flags: Some extra information for header, always 0 for now.
  1320. * @name_size: The size in bytes of the memory which contains statistics
  1321. * name string including trailing '\0'. The memory is allocated
  1322. * at the send of statistics descriptor.
  1323. * @num_desc: The number of statistics the vm or vcpu has.
  1324. * @id_offset: The offset of the vm/vcpu stats' id string in the file pointed
  1325. * by vm/vcpu stats fd.
  1326. * @desc_offset: The offset of the vm/vcpu stats' descriptor block in the file
  1327. * pointd by vm/vcpu stats fd.
  1328. * @data_offset: The offset of the vm/vcpu stats' data block in the file
  1329. * pointed by vm/vcpu stats fd.
  1330. *
  1331. * This is the header userspace needs to read from stats fd before any other
  1332. * readings. It is used by userspace to discover all the information about the
  1333. * vm/vcpu's binary statistics.
  1334. * Userspace reads this header from the start of the vm/vcpu's stats fd.
  1335. */
  1336. struct kvm_stats_header {
  1337. __u32 flags;
  1338. __u32 name_size;
  1339. __u32 num_desc;
  1340. __u32 id_offset;
  1341. __u32 desc_offset;
  1342. __u32 data_offset;
  1343. };
  1344. #define KVM_STATS_TYPE_SHIFT 0
  1345. #define KVM_STATS_TYPE_MASK (0xF << KVM_STATS_TYPE_SHIFT)
  1346. #define KVM_STATS_TYPE_CUMULATIVE (0x0 << KVM_STATS_TYPE_SHIFT)
  1347. #define KVM_STATS_TYPE_INSTANT (0x1 << KVM_STATS_TYPE_SHIFT)
  1348. #define KVM_STATS_TYPE_PEAK (0x2 << KVM_STATS_TYPE_SHIFT)
  1349. #define KVM_STATS_TYPE_LINEAR_HIST (0x3 << KVM_STATS_TYPE_SHIFT)
  1350. #define KVM_STATS_TYPE_LOG_HIST (0x4 << KVM_STATS_TYPE_SHIFT)
  1351. #define KVM_STATS_TYPE_MAX KVM_STATS_TYPE_LOG_HIST
  1352. #define KVM_STATS_UNIT_SHIFT 4
  1353. #define KVM_STATS_UNIT_MASK (0xF << KVM_STATS_UNIT_SHIFT)
  1354. #define KVM_STATS_UNIT_NONE (0x0 << KVM_STATS_UNIT_SHIFT)
  1355. #define KVM_STATS_UNIT_BYTES (0x1 << KVM_STATS_UNIT_SHIFT)
  1356. #define KVM_STATS_UNIT_SECONDS (0x2 << KVM_STATS_UNIT_SHIFT)
  1357. #define KVM_STATS_UNIT_CYCLES (0x3 << KVM_STATS_UNIT_SHIFT)
  1358. #define KVM_STATS_UNIT_BOOLEAN (0x4 << KVM_STATS_UNIT_SHIFT)
  1359. #define KVM_STATS_UNIT_MAX KVM_STATS_UNIT_BOOLEAN
  1360. #define KVM_STATS_BASE_SHIFT 8
  1361. #define KVM_STATS_BASE_MASK (0xF << KVM_STATS_BASE_SHIFT)
  1362. #define KVM_STATS_BASE_POW10 (0x0 << KVM_STATS_BASE_SHIFT)
  1363. #define KVM_STATS_BASE_POW2 (0x1 << KVM_STATS_BASE_SHIFT)
  1364. #define KVM_STATS_BASE_MAX KVM_STATS_BASE_POW2
  1365. /**
  1366. * struct kvm_stats_desc - Descriptor of a KVM statistics.
  1367. * @flags: Annotations of the stats, like type, unit, etc.
  1368. * @exponent: Used together with @flags to determine the unit.
  1369. * @size: The number of data items for this stats.
  1370. * Every data item is of type __u64.
  1371. * @offset: The offset of the stats to the start of stat structure in
  1372. * structure kvm or kvm_vcpu.
  1373. * @bucket_size: A parameter value used for histogram stats. It is only used
  1374. * for linear histogram stats, specifying the size of the bucket;
  1375. * @name: The name string for the stats. Its size is indicated by the
  1376. * &kvm_stats_header->name_size.
  1377. */
  1378. struct kvm_stats_desc {
  1379. __u32 flags;
  1380. __s16 exponent;
  1381. __u16 size;
  1382. __u32 offset;
  1383. __u32 bucket_size;
  1384. char name[];
  1385. };
  1386. #define KVM_GET_STATS_FD _IO(KVMIO, 0xce)
  1387. /* Available with KVM_CAP_XSAVE2 */
  1388. #define KVM_GET_XSAVE2 _IOR(KVMIO, 0xcf, struct kvm_xsave)
  1389. /* Available with KVM_CAP_S390_PROTECTED_DUMP */
  1390. #define KVM_S390_PV_CPU_COMMAND _IOWR(KVMIO, 0xd0, struct kvm_pv_cmd)
  1391. /* Available with KVM_CAP_X86_NOTIFY_VMEXIT */
  1392. #define KVM_X86_NOTIFY_VMEXIT_ENABLED (1ULL << 0)
  1393. #define KVM_X86_NOTIFY_VMEXIT_USER (1ULL << 1)
  1394. /* Available with KVM_CAP_S390_ZPCI_OP */
  1395. #define KVM_S390_ZPCI_OP _IOW(KVMIO, 0xd1, struct kvm_s390_zpci_op)
  1396. /* Available with KVM_CAP_MEMORY_ATTRIBUTES */
  1397. #define KVM_SET_MEMORY_ATTRIBUTES _IOW(KVMIO, 0xd2, struct kvm_memory_attributes)
  1398. struct kvm_memory_attributes {
  1399. __u64 address;
  1400. __u64 size;
  1401. __u64 attributes;
  1402. __u64 flags;
  1403. };
  1404. #define KVM_MEMORY_ATTRIBUTE_PRIVATE (1ULL << 3)
  1405. #define KVM_CREATE_GUEST_MEMFD _IOWR(KVMIO, 0xd4, struct kvm_create_guest_memfd)
  1406. struct kvm_create_guest_memfd {
  1407. __u64 size;
  1408. __u64 flags;
  1409. __u64 reserved[6];
  1410. };
  1411. #endif /* __LINUX_KVM_H */