Revert "hw/loongarch/virt: Add cfi01 pflash device"
[qemu.git] / linux-headers / asm-x86 / kvm.h
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _ASM_X86_KVM_H
3 #define _ASM_X86_KVM_H
4
5 /*
6 * KVM x86 specific structures and definitions
7 *
8 */
9
10 #include <linux/types.h>
11 #include <linux/ioctl.h>
12
13 #define KVM_PIO_PAGE_OFFSET 1
14 #define KVM_COALESCED_MMIO_PAGE_OFFSET 2
15 #define KVM_DIRTY_LOG_PAGE_OFFSET 64
16
17 #define DE_VECTOR 0
18 #define DB_VECTOR 1
19 #define BP_VECTOR 3
20 #define OF_VECTOR 4
21 #define BR_VECTOR 5
22 #define UD_VECTOR 6
23 #define NM_VECTOR 7
24 #define DF_VECTOR 8
25 #define TS_VECTOR 10
26 #define NP_VECTOR 11
27 #define SS_VECTOR 12
28 #define GP_VECTOR 13
29 #define PF_VECTOR 14
30 #define MF_VECTOR 16
31 #define AC_VECTOR 17
32 #define MC_VECTOR 18
33 #define XM_VECTOR 19
34 #define VE_VECTOR 20
35
36 /* Select x86 specific features in <linux/kvm.h> */
37 #define __KVM_HAVE_PIT
38 #define __KVM_HAVE_IOAPIC
39 #define __KVM_HAVE_IRQ_LINE
40 #define __KVM_HAVE_MSI
41 #define __KVM_HAVE_USER_NMI
42 #define __KVM_HAVE_GUEST_DEBUG
43 #define __KVM_HAVE_MSIX
44 #define __KVM_HAVE_MCE
45 #define __KVM_HAVE_PIT_STATE2
46 #define __KVM_HAVE_XEN_HVM
47 #define __KVM_HAVE_VCPU_EVENTS
48 #define __KVM_HAVE_DEBUGREGS
49 #define __KVM_HAVE_XSAVE
50 #define __KVM_HAVE_XCRS
51 #define __KVM_HAVE_READONLY_MEM
52
53 /* Architectural interrupt line count. */
54 #define KVM_NR_INTERRUPTS 256
55
56 struct kvm_memory_alias {
57 __u32 slot; /* this has a different namespace than memory slots */
58 __u32 flags;
59 __u64 guest_phys_addr;
60 __u64 memory_size;
61 __u64 target_phys_addr;
62 };
63
64 /* for KVM_GET_IRQCHIP and KVM_SET_IRQCHIP */
65 struct kvm_pic_state {
66 __u8 last_irr; /* edge detection */
67 __u8 irr; /* interrupt request register */
68 __u8 imr; /* interrupt mask register */
69 __u8 isr; /* interrupt service register */
70 __u8 priority_add; /* highest irq priority */
71 __u8 irq_base;
72 __u8 read_reg_select;
73 __u8 poll;
74 __u8 special_mask;
75 __u8 init_state;
76 __u8 auto_eoi;
77 __u8 rotate_on_auto_eoi;
78 __u8 special_fully_nested_mode;
79 __u8 init4; /* true if 4 byte init */
80 __u8 elcr; /* PIIX edge/trigger selection */
81 __u8 elcr_mask;
82 };
83
84 #define KVM_IOAPIC_NUM_PINS 24
85 struct kvm_ioapic_state {
86 __u64 base_address;
87 __u32 ioregsel;
88 __u32 id;
89 __u32 irr;
90 __u32 pad;
91 union {
92 __u64 bits;
93 struct {
94 __u8 vector;
95 __u8 delivery_mode:3;
96 __u8 dest_mode:1;
97 __u8 delivery_status:1;
98 __u8 polarity:1;
99 __u8 remote_irr:1;
100 __u8 trig_mode:1;
101 __u8 mask:1;
102 __u8 reserve:7;
103 __u8 reserved[4];
104 __u8 dest_id;
105 } fields;
106 } redirtbl[KVM_IOAPIC_NUM_PINS];
107 };
108
109 #define KVM_IRQCHIP_PIC_MASTER 0
110 #define KVM_IRQCHIP_PIC_SLAVE 1
111 #define KVM_IRQCHIP_IOAPIC 2
112 #define KVM_NR_IRQCHIPS 3
113
114 #define KVM_RUN_X86_SMM (1 << 0)
115 #define KVM_RUN_X86_BUS_LOCK (1 << 1)
116
117 /* for KVM_GET_REGS and KVM_SET_REGS */
118 struct kvm_regs {
119 /* out (KVM_GET_REGS) / in (KVM_SET_REGS) */
120 __u64 rax, rbx, rcx, rdx;
121 __u64 rsi, rdi, rsp, rbp;
122 __u64 r8, r9, r10, r11;
123 __u64 r12, r13, r14, r15;
124 __u64 rip, rflags;
125 };
126
127 /* for KVM_GET_LAPIC and KVM_SET_LAPIC */
128 #define KVM_APIC_REG_SIZE 0x400
129 struct kvm_lapic_state {
130 char regs[KVM_APIC_REG_SIZE];
131 };
132
133 struct kvm_segment {
134 __u64 base;
135 __u32 limit;
136 __u16 selector;
137 __u8 type;
138 __u8 present, dpl, db, s, l, g, avl;
139 __u8 unusable;
140 __u8 padding;
141 };
142
143 struct kvm_dtable {
144 __u64 base;
145 __u16 limit;
146 __u16 padding[3];
147 };
148
149
150 /* for KVM_GET_SREGS and KVM_SET_SREGS */
151 struct kvm_sregs {
152 /* out (KVM_GET_SREGS) / in (KVM_SET_SREGS) */
153 struct kvm_segment cs, ds, es, fs, gs, ss;
154 struct kvm_segment tr, ldt;
155 struct kvm_dtable gdt, idt;
156 __u64 cr0, cr2, cr3, cr4, cr8;
157 __u64 efer;
158 __u64 apic_base;
159 __u64 interrupt_bitmap[(KVM_NR_INTERRUPTS + 63) / 64];
160 };
161
162 struct kvm_sregs2 {
163 /* out (KVM_GET_SREGS2) / in (KVM_SET_SREGS2) */
164 struct kvm_segment cs, ds, es, fs, gs, ss;
165 struct kvm_segment tr, ldt;
166 struct kvm_dtable gdt, idt;
167 __u64 cr0, cr2, cr3, cr4, cr8;
168 __u64 efer;
169 __u64 apic_base;
170 __u64 flags;
171 __u64 pdptrs[4];
172 };
173 #define KVM_SREGS2_FLAGS_PDPTRS_VALID 1
174
175 /* for KVM_GET_FPU and KVM_SET_FPU */
176 struct kvm_fpu {
177 __u8 fpr[8][16];
178 __u16 fcw;
179 __u16 fsw;
180 __u8 ftwx; /* in fxsave format */
181 __u8 pad1;
182 __u16 last_opcode;
183 __u64 last_ip;
184 __u64 last_dp;
185 __u8 xmm[16][16];
186 __u32 mxcsr;
187 __u32 pad2;
188 };
189
190 struct kvm_msr_entry {
191 __u32 index;
192 __u32 reserved;
193 __u64 data;
194 };
195
196 /* for KVM_GET_MSRS and KVM_SET_MSRS */
197 struct kvm_msrs {
198 __u32 nmsrs; /* number of msrs in entries */
199 __u32 pad;
200
201 struct kvm_msr_entry entries[0];
202 };
203
204 /* for KVM_GET_MSR_INDEX_LIST */
205 struct kvm_msr_list {
206 __u32 nmsrs; /* number of msrs in entries */
207 __u32 indices[0];
208 };
209
210 /* Maximum size of any access bitmap in bytes */
211 #define KVM_MSR_FILTER_MAX_BITMAP_SIZE 0x600
212
213 /* for KVM_X86_SET_MSR_FILTER */
214 struct kvm_msr_filter_range {
215 #define KVM_MSR_FILTER_READ (1 << 0)
216 #define KVM_MSR_FILTER_WRITE (1 << 1)
217 __u32 flags;
218 __u32 nmsrs; /* number of msrs in bitmap */
219 __u32 base; /* MSR index the bitmap starts at */
220 __u8 *bitmap; /* a 1 bit allows the operations in flags, 0 denies */
221 };
222
223 #define KVM_MSR_FILTER_MAX_RANGES 16
224 struct kvm_msr_filter {
225 #define KVM_MSR_FILTER_DEFAULT_ALLOW (0 << 0)
226 #define KVM_MSR_FILTER_DEFAULT_DENY (1 << 0)
227 __u32 flags;
228 struct kvm_msr_filter_range ranges[KVM_MSR_FILTER_MAX_RANGES];
229 };
230
231 struct kvm_cpuid_entry {
232 __u32 function;
233 __u32 eax;
234 __u32 ebx;
235 __u32 ecx;
236 __u32 edx;
237 __u32 padding;
238 };
239
240 /* for KVM_SET_CPUID */
241 struct kvm_cpuid {
242 __u32 nent;
243 __u32 padding;
244 struct kvm_cpuid_entry entries[0];
245 };
246
247 struct kvm_cpuid_entry2 {
248 __u32 function;
249 __u32 index;
250 __u32 flags;
251 __u32 eax;
252 __u32 ebx;
253 __u32 ecx;
254 __u32 edx;
255 __u32 padding[3];
256 };
257
258 #define KVM_CPUID_FLAG_SIGNIFCANT_INDEX (1 << 0)
259 #define KVM_CPUID_FLAG_STATEFUL_FUNC (1 << 1)
260 #define KVM_CPUID_FLAG_STATE_READ_NEXT (1 << 2)
261
262 /* for KVM_SET_CPUID2 */
263 struct kvm_cpuid2 {
264 __u32 nent;
265 __u32 padding;
266 struct kvm_cpuid_entry2 entries[0];
267 };
268
269 /* for KVM_GET_PIT and KVM_SET_PIT */
270 struct kvm_pit_channel_state {
271 __u32 count; /* can be 65536 */
272 __u16 latched_count;
273 __u8 count_latched;
274 __u8 status_latched;
275 __u8 status;
276 __u8 read_state;
277 __u8 write_state;
278 __u8 write_latch;
279 __u8 rw_mode;
280 __u8 mode;
281 __u8 bcd;
282 __u8 gate;
283 __s64 count_load_time;
284 };
285
286 struct kvm_debug_exit_arch {
287 __u32 exception;
288 __u32 pad;
289 __u64 pc;
290 __u64 dr6;
291 __u64 dr7;
292 };
293
294 #define KVM_GUESTDBG_USE_SW_BP 0x00010000
295 #define KVM_GUESTDBG_USE_HW_BP 0x00020000
296 #define KVM_GUESTDBG_INJECT_DB 0x00040000
297 #define KVM_GUESTDBG_INJECT_BP 0x00080000
298 #define KVM_GUESTDBG_BLOCKIRQ 0x00100000
299
300 /* for KVM_SET_GUEST_DEBUG */
301 struct kvm_guest_debug_arch {
302 __u64 debugreg[8];
303 };
304
305 struct kvm_pit_state {
306 struct kvm_pit_channel_state channels[3];
307 };
308
309 #define KVM_PIT_FLAGS_HPET_LEGACY 0x00000001
310
311 struct kvm_pit_state2 {
312 struct kvm_pit_channel_state channels[3];
313 __u32 flags;
314 __u32 reserved[9];
315 };
316
317 struct kvm_reinject_control {
318 __u8 pit_reinject;
319 __u8 reserved[31];
320 };
321
322 /* When set in flags, include corresponding fields on KVM_SET_VCPU_EVENTS */
323 #define KVM_VCPUEVENT_VALID_NMI_PENDING 0x00000001
324 #define KVM_VCPUEVENT_VALID_SIPI_VECTOR 0x00000002
325 #define KVM_VCPUEVENT_VALID_SHADOW 0x00000004
326 #define KVM_VCPUEVENT_VALID_SMM 0x00000008
327 #define KVM_VCPUEVENT_VALID_PAYLOAD 0x00000010
328
329 /* Interrupt shadow states */
330 #define KVM_X86_SHADOW_INT_MOV_SS 0x01
331 #define KVM_X86_SHADOW_INT_STI 0x02
332
333 /* for KVM_GET/SET_VCPU_EVENTS */
334 struct kvm_vcpu_events {
335 struct {
336 __u8 injected;
337 __u8 nr;
338 __u8 has_error_code;
339 __u8 pending;
340 __u32 error_code;
341 } exception;
342 struct {
343 __u8 injected;
344 __u8 nr;
345 __u8 soft;
346 __u8 shadow;
347 } interrupt;
348 struct {
349 __u8 injected;
350 __u8 pending;
351 __u8 masked;
352 __u8 pad;
353 } nmi;
354 __u32 sipi_vector;
355 __u32 flags;
356 struct {
357 __u8 smm;
358 __u8 pending;
359 __u8 smm_inside_nmi;
360 __u8 latched_init;
361 } smi;
362 __u8 reserved[27];
363 __u8 exception_has_payload;
364 __u64 exception_payload;
365 };
366
367 /* for KVM_GET/SET_DEBUGREGS */
368 struct kvm_debugregs {
369 __u64 db[4];
370 __u64 dr6;
371 __u64 dr7;
372 __u64 flags;
373 __u64 reserved[9];
374 };
375
376 /* for KVM_CAP_XSAVE and KVM_CAP_XSAVE2 */
377 struct kvm_xsave {
378 /*
379 * KVM_GET_XSAVE2 and KVM_SET_XSAVE write and read as many bytes
380 * as are returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)
381 * respectively, when invoked on the vm file descriptor.
382 *
383 * The size value returned by KVM_CHECK_EXTENSION(KVM_CAP_XSAVE2)
384 * will always be at least 4096. Currently, it is only greater
385 * than 4096 if a dynamic feature has been enabled with
386 * ``arch_prctl()``, but this may change in the future.
387 *
388 * The offsets of the state save areas in struct kvm_xsave follow
389 * the contents of CPUID leaf 0xD on the host.
390 */
391 __u32 region[1024];
392 __u32 extra[0];
393 };
394
395 #define KVM_MAX_XCRS 16
396
397 struct kvm_xcr {
398 __u32 xcr;
399 __u32 reserved;
400 __u64 value;
401 };
402
403 struct kvm_xcrs {
404 __u32 nr_xcrs;
405 __u32 flags;
406 struct kvm_xcr xcrs[KVM_MAX_XCRS];
407 __u64 padding[16];
408 };
409
410 #define KVM_SYNC_X86_REGS (1UL << 0)
411 #define KVM_SYNC_X86_SREGS (1UL << 1)
412 #define KVM_SYNC_X86_EVENTS (1UL << 2)
413
414 #define KVM_SYNC_X86_VALID_FIELDS \
415 (KVM_SYNC_X86_REGS| \
416 KVM_SYNC_X86_SREGS| \
417 KVM_SYNC_X86_EVENTS)
418
419 /* kvm_sync_regs struct included by kvm_run struct */
420 struct kvm_sync_regs {
421 /* Members of this structure are potentially malicious.
422 * Care must be taken by code reading, esp. interpreting,
423 * data fields from them inside KVM to prevent TOCTOU and
424 * double-fetch types of vulnerabilities.
425 */
426 struct kvm_regs regs;
427 struct kvm_sregs sregs;
428 struct kvm_vcpu_events events;
429 };
430
431 #define KVM_X86_QUIRK_LINT0_REENABLED (1 << 0)
432 #define KVM_X86_QUIRK_CD_NW_CLEARED (1 << 1)
433 #define KVM_X86_QUIRK_LAPIC_MMIO_HOLE (1 << 2)
434 #define KVM_X86_QUIRK_OUT_7E_INC_RIP (1 << 3)
435 #define KVM_X86_QUIRK_MISC_ENABLE_NO_MWAIT (1 << 4)
436
437 #define KVM_STATE_NESTED_FORMAT_VMX 0
438 #define KVM_STATE_NESTED_FORMAT_SVM 1
439
440 #define KVM_STATE_NESTED_GUEST_MODE 0x00000001
441 #define KVM_STATE_NESTED_RUN_PENDING 0x00000002
442 #define KVM_STATE_NESTED_EVMCS 0x00000004
443 #define KVM_STATE_NESTED_MTF_PENDING 0x00000008
444 #define KVM_STATE_NESTED_GIF_SET 0x00000100
445
446 #define KVM_STATE_NESTED_SMM_GUEST_MODE 0x00000001
447 #define KVM_STATE_NESTED_SMM_VMXON 0x00000002
448
449 #define KVM_STATE_NESTED_VMX_VMCS_SIZE 0x1000
450
451 #define KVM_STATE_NESTED_SVM_VMCB_SIZE 0x1000
452
453 #define KVM_STATE_VMX_PREEMPTION_TIMER_DEADLINE 0x00000001
454
455 /* attributes for system fd (group 0) */
456 #define KVM_X86_XCOMP_GUEST_SUPP 0
457
458 struct kvm_vmx_nested_state_data {
459 __u8 vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
460 __u8 shadow_vmcs12[KVM_STATE_NESTED_VMX_VMCS_SIZE];
461 };
462
463 struct kvm_vmx_nested_state_hdr {
464 __u64 vmxon_pa;
465 __u64 vmcs12_pa;
466
467 struct {
468 __u16 flags;
469 } smm;
470
471 __u16 pad;
472
473 __u32 flags;
474 __u64 preemption_timer_deadline;
475 };
476
477 struct kvm_svm_nested_state_data {
478 /* Save area only used if KVM_STATE_NESTED_RUN_PENDING. */
479 __u8 vmcb12[KVM_STATE_NESTED_SVM_VMCB_SIZE];
480 };
481
482 struct kvm_svm_nested_state_hdr {
483 __u64 vmcb_pa;
484 };
485
486 /* for KVM_CAP_NESTED_STATE */
487 struct kvm_nested_state {
488 __u16 flags;
489 __u16 format;
490 __u32 size;
491
492 union {
493 struct kvm_vmx_nested_state_hdr vmx;
494 struct kvm_svm_nested_state_hdr svm;
495
496 /* Pad the header to 128 bytes. */
497 __u8 pad[120];
498 } hdr;
499
500 /*
501 * Define data region as 0 bytes to preserve backwards-compatability
502 * to old definition of kvm_nested_state in order to avoid changing
503 * KVM_{GET,PUT}_NESTED_STATE ioctl values.
504 */
505 union {
506 struct kvm_vmx_nested_state_data vmx[0];
507 struct kvm_svm_nested_state_data svm[0];
508 } data;
509 };
510
511 /* for KVM_CAP_PMU_EVENT_FILTER */
512 struct kvm_pmu_event_filter {
513 __u32 action;
514 __u32 nevents;
515 __u32 fixed_counter_bitmap;
516 __u32 flags;
517 __u32 pad[4];
518 __u64 events[0];
519 };
520
521 #define KVM_PMU_EVENT_ALLOW 0
522 #define KVM_PMU_EVENT_DENY 1
523
524 /* for KVM_{GET,SET,HAS}_DEVICE_ATTR */
525 #define KVM_VCPU_TSC_CTRL 0 /* control group for the timestamp counter (TSC) */
526 #define KVM_VCPU_TSC_OFFSET 0 /* attribute for the TSC offset */
527
528 #endif /* _ASM_X86_KVM_H */