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