1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef __SVM_H
3#define __SVM_H
4
5#include <uapi/asm/svm.h>
6#include <uapi/asm/kvm.h>
7
8#include <hyperv/hvhdk.h>
9
10/*
11 * 32-bit intercept words in the VMCB Control Area, starting
12 * at Byte offset 000h.
13 */
14
15enum intercept_words {
16 INTERCEPT_CR = 0,
17 INTERCEPT_DR,
18 INTERCEPT_EXCEPTION,
19 INTERCEPT_WORD3,
20 INTERCEPT_WORD4,
21 INTERCEPT_WORD5,
22 MAX_INTERCEPT,
23};
24
25enum {
26 /* Byte offset 000h (word 0) */
27 INTERCEPT_CR0_READ = 0,
28 INTERCEPT_CR3_READ = 3,
29 INTERCEPT_CR4_READ = 4,
30 INTERCEPT_CR8_READ = 8,
31 INTERCEPT_CR0_WRITE = 16,
32 INTERCEPT_CR3_WRITE = 16 + 3,
33 INTERCEPT_CR4_WRITE = 16 + 4,
34 INTERCEPT_CR8_WRITE = 16 + 8,
35 /* Byte offset 004h (word 1) */
36 INTERCEPT_DR0_READ = 32,
37 INTERCEPT_DR1_READ,
38 INTERCEPT_DR2_READ,
39 INTERCEPT_DR3_READ,
40 INTERCEPT_DR4_READ,
41 INTERCEPT_DR5_READ,
42 INTERCEPT_DR6_READ,
43 INTERCEPT_DR7_READ,
44 INTERCEPT_DR0_WRITE = 48,
45 INTERCEPT_DR1_WRITE,
46 INTERCEPT_DR2_WRITE,
47 INTERCEPT_DR3_WRITE,
48 INTERCEPT_DR4_WRITE,
49 INTERCEPT_DR5_WRITE,
50 INTERCEPT_DR6_WRITE,
51 INTERCEPT_DR7_WRITE,
52 /* Byte offset 008h (word 2) */
53 INTERCEPT_EXCEPTION_OFFSET = 64,
54 /* Byte offset 00Ch (word 3) */
55 INTERCEPT_INTR = 96,
56 INTERCEPT_NMI,
57 INTERCEPT_SMI,
58 INTERCEPT_INIT,
59 INTERCEPT_VINTR,
60 INTERCEPT_SELECTIVE_CR0,
61 INTERCEPT_STORE_IDTR,
62 INTERCEPT_STORE_GDTR,
63 INTERCEPT_STORE_LDTR,
64 INTERCEPT_STORE_TR,
65 INTERCEPT_LOAD_IDTR,
66 INTERCEPT_LOAD_GDTR,
67 INTERCEPT_LOAD_LDTR,
68 INTERCEPT_LOAD_TR,
69 INTERCEPT_RDTSC,
70 INTERCEPT_RDPMC,
71 INTERCEPT_PUSHF,
72 INTERCEPT_POPF,
73 INTERCEPT_CPUID,
74 INTERCEPT_RSM,
75 INTERCEPT_IRET,
76 INTERCEPT_INTn,
77 INTERCEPT_INVD,
78 INTERCEPT_PAUSE,
79 INTERCEPT_HLT,
80 INTERCEPT_INVLPG,
81 INTERCEPT_INVLPGA,
82 INTERCEPT_IOIO_PROT,
83 INTERCEPT_MSR_PROT,
84 INTERCEPT_TASK_SWITCH,
85 INTERCEPT_FERR_FREEZE,
86 INTERCEPT_SHUTDOWN,
87 /* Byte offset 010h (word 4) */
88 INTERCEPT_VMRUN = 128,
89 INTERCEPT_VMMCALL,
90 INTERCEPT_VMLOAD,
91 INTERCEPT_VMSAVE,
92 INTERCEPT_STGI,
93 INTERCEPT_CLGI,
94 INTERCEPT_SKINIT,
95 INTERCEPT_RDTSCP,
96 INTERCEPT_ICEBP,
97 INTERCEPT_WBINVD,
98 INTERCEPT_MONITOR,
99 INTERCEPT_MWAIT,
100 INTERCEPT_MWAIT_COND,
101 INTERCEPT_XSETBV,
102 INTERCEPT_RDPRU,
103 TRAP_EFER_WRITE,
104 TRAP_CR0_WRITE,
105 TRAP_CR1_WRITE,
106 TRAP_CR2_WRITE,
107 TRAP_CR3_WRITE,
108 TRAP_CR4_WRITE,
109 TRAP_CR5_WRITE,
110 TRAP_CR6_WRITE,
111 TRAP_CR7_WRITE,
112 TRAP_CR8_WRITE,
113 /* Byte offset 014h (word 5) */
114 INTERCEPT_INVLPGB = 160,
115 INTERCEPT_INVLPGB_ILLEGAL,
116 INTERCEPT_INVPCID,
117 INTERCEPT_MCOMMIT,
118 INTERCEPT_TLBSYNC,
119 INTERCEPT_BUSLOCK,
120 INTERCEPT_IDLE_HLT = 166,
121};
122
123
124struct __attribute__ ((__packed__)) vmcb_control_area {
125 u32 intercepts[MAX_INTERCEPT];
126 u32 reserved_1[15 - MAX_INTERCEPT];
127 u16 pause_filter_thresh;
128 u16 pause_filter_count;
129 u64 iopm_base_pa;
130 u64 msrpm_base_pa;
131 u64 tsc_offset;
132 u32 asid;
133 u8 tlb_ctl;
134 u8 reserved_2[3];
135 u32 int_ctl;
136 u32 int_vector;
137 u32 int_state;
138 u8 reserved_3[4];
139 u32 exit_code;
140 u32 exit_code_hi;
141 u64 exit_info_1;
142 u64 exit_info_2;
143 u32 exit_int_info;
144 u32 exit_int_info_err;
145 u64 nested_ctl;
146 u64 avic_vapic_bar;
147 u64 ghcb_gpa;
148 u32 event_inj;
149 u32 event_inj_err;
150 u64 nested_cr3;
151 u64 virt_ext;
152 u32 clean;
153 u32 reserved_5;
154 u64 next_rip;
155 u8 insn_len;
156 u8 insn_bytes[15];
157 u64 avic_backing_page; /* Offset 0xe0 */
158 u8 reserved_6[8]; /* Offset 0xe8 */
159 u64 avic_logical_id; /* Offset 0xf0 */
160 u64 avic_physical_id; /* Offset 0xf8 */
161 u8 reserved_7[8];
162 u64 vmsa_pa; /* Used for an SEV-ES guest */
163 u8 reserved_8[16];
164 u16 bus_lock_counter; /* Offset 0x120 */
165 u8 reserved_9[22];
166 u64 allowed_sev_features; /* Offset 0x138 */
167 u64 guest_sev_features; /* Offset 0x140 */
168 u8 reserved_10[664];
169 /*
170 * Offset 0x3e0, 32 bytes reserved
171 * for use by hypervisor/software.
172 */
173 union {
174 struct hv_vmcb_enlightenments hv_enlightenments;
175 u8 reserved_sw[32];
176 };
177};
178
179
180#define TLB_CONTROL_DO_NOTHING 0
181#define TLB_CONTROL_FLUSH_ALL_ASID 1
182#define TLB_CONTROL_FLUSH_ASID 3
183#define TLB_CONTROL_FLUSH_ASID_LOCAL 7
184
185#define V_TPR_MASK 0x0f
186
187#define V_IRQ_SHIFT 8
188#define V_IRQ_MASK (1 << V_IRQ_SHIFT)
189
190#define V_GIF_SHIFT 9
191#define V_GIF_MASK (1 << V_GIF_SHIFT)
192
193#define V_NMI_PENDING_SHIFT 11
194#define V_NMI_PENDING_MASK (1 << V_NMI_PENDING_SHIFT)
195
196#define V_NMI_BLOCKING_SHIFT 12
197#define V_NMI_BLOCKING_MASK (1 << V_NMI_BLOCKING_SHIFT)
198
199#define V_INTR_PRIO_SHIFT 16
200#define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
201
202#define V_IGN_TPR_SHIFT 20
203#define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
204
205#define V_IRQ_INJECTION_BITS_MASK (V_IRQ_MASK | V_INTR_PRIO_MASK | V_IGN_TPR_MASK)
206
207#define V_INTR_MASKING_SHIFT 24
208#define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
209
210#define V_GIF_ENABLE_SHIFT 25
211#define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
212
213#define V_NMI_ENABLE_SHIFT 26
214#define V_NMI_ENABLE_MASK (1 << V_NMI_ENABLE_SHIFT)
215
216#define AVIC_ENABLE_SHIFT 31
217#define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
218
219#define X2APIC_MODE_SHIFT 30
220#define X2APIC_MODE_MASK (1 << X2APIC_MODE_SHIFT)
221
222#define LBR_CTL_ENABLE_MASK BIT_ULL(0)
223#define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
224
225#define SVM_INTERRUPT_SHADOW_MASK BIT_ULL(0)
226#define SVM_GUEST_INTERRUPT_MASK BIT_ULL(1)
227
228#define SVM_IOIO_STR_SHIFT 2
229#define SVM_IOIO_REP_SHIFT 3
230#define SVM_IOIO_SIZE_SHIFT 4
231#define SVM_IOIO_ASIZE_SHIFT 7
232
233#define SVM_IOIO_TYPE_MASK 1
234#define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
235#define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
236#define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
237#define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
238
239#define SVM_NESTED_CTL_NP_ENABLE BIT(0)
240#define SVM_NESTED_CTL_SEV_ENABLE BIT(1)
241#define SVM_NESTED_CTL_SEV_ES_ENABLE BIT(2)
242
243
244#define SVM_TSC_RATIO_RSVD 0xffffff0000000000ULL
245#define SVM_TSC_RATIO_MIN 0x0000000000000001ULL
246#define SVM_TSC_RATIO_MAX 0x000000ffffffffffULL
247#define SVM_TSC_RATIO_DEFAULT 0x0100000000ULL
248
249
250/* AVIC */
251#define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK (0xFFULL)
252#define AVIC_LOGICAL_ID_ENTRY_VALID_BIT 31
253#define AVIC_LOGICAL_ID_ENTRY_VALID_MASK (1 << 31)
254
255#define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK GENMASK_ULL(11, 0)
256#define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK (0xFFFFFFFFFFULL << 12)
257#define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK (1ULL << 62)
258#define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK (1ULL << 63)
259#define AVIC_PHYSICAL_ID_TABLE_SIZE_MASK (0xFFULL)
260
261#define AVIC_DOORBELL_PHYSICAL_ID_MASK GENMASK_ULL(11, 0)
262
263#define VMCB_AVIC_APIC_BAR_MASK 0xFFFFFFFFFF000ULL
264
265#define AVIC_UNACCEL_ACCESS_WRITE_MASK 1
266#define AVIC_UNACCEL_ACCESS_OFFSET_MASK 0xFF0
267#define AVIC_UNACCEL_ACCESS_VECTOR_MASK 0xFFFFFFFF
268
269enum avic_ipi_failure_cause {
270 AVIC_IPI_FAILURE_INVALID_INT_TYPE,
271 AVIC_IPI_FAILURE_TARGET_NOT_RUNNING,
272 AVIC_IPI_FAILURE_INVALID_TARGET,
273 AVIC_IPI_FAILURE_INVALID_BACKING_PAGE,
274 AVIC_IPI_FAILURE_INVALID_IPI_VECTOR,
275};
276
277#define AVIC_PHYSICAL_MAX_INDEX_MASK GENMASK_ULL(8, 0)
278
279/*
280 * For AVIC, the max index allowed for physical APIC ID table is 0xfe (254), as
281 * 0xff is a broadcast to all CPUs, i.e. can't be targeted individually.
282 */
283#define AVIC_MAX_PHYSICAL_ID 0XFEULL
284
285/*
286 * For x2AVIC, the max index allowed for physical APIC ID table is 0x1ff (511).
287 */
288#define X2AVIC_MAX_PHYSICAL_ID 0x1FFUL
289
290static_assert((AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == AVIC_MAX_PHYSICAL_ID);
291static_assert((X2AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == X2AVIC_MAX_PHYSICAL_ID);
292
293#define AVIC_HPA_MASK ~((0xFFFULL << 52) | 0xFFF)
294
295#define SVM_SEV_FEAT_SNP_ACTIVE BIT(0)
296#define SVM_SEV_FEAT_RESTRICTED_INJECTION BIT(3)
297#define SVM_SEV_FEAT_ALTERNATE_INJECTION BIT(4)
298#define SVM_SEV_FEAT_DEBUG_SWAP BIT(5)
299
300#define VMCB_ALLOWED_SEV_FEATURES_VALID BIT_ULL(63)
301
302struct vmcb_seg {
303 u16 selector;
304 u16 attrib;
305 u32 limit;
306 u64 base;
307} __packed;
308
309/* Save area definition for legacy and SEV-MEM guests */
310struct vmcb_save_area {
311 struct vmcb_seg es;
312 struct vmcb_seg cs;
313 struct vmcb_seg ss;
314 struct vmcb_seg ds;
315 struct vmcb_seg fs;
316 struct vmcb_seg gs;
317 struct vmcb_seg gdtr;
318 struct vmcb_seg ldtr;
319 struct vmcb_seg idtr;
320 struct vmcb_seg tr;
321 /* Reserved fields are named following their struct offset */
322 u8 reserved_0xa0[42];
323 u8 vmpl;
324 u8 cpl;
325 u8 reserved_0xcc[4];
326 u64 efer;
327 u8 reserved_0xd8[112];
328 u64 cr4;
329 u64 cr3;
330 u64 cr0;
331 u64 dr7;
332 u64 dr6;
333 u64 rflags;
334 u64 rip;
335 u8 reserved_0x180[88];
336 u64 rsp;
337 u64 s_cet;
338 u64 ssp;
339 u64 isst_addr;
340 u64 rax;
341 u64 star;
342 u64 lstar;
343 u64 cstar;
344 u64 sfmask;
345 u64 kernel_gs_base;
346 u64 sysenter_cs;
347 u64 sysenter_esp;
348 u64 sysenter_eip;
349 u64 cr2;
350 u8 reserved_0x248[32];
351 u64 g_pat;
352 u64 dbgctl;
353 u64 br_from;
354 u64 br_to;
355 u64 last_excp_from;
356 u64 last_excp_to;
357 u8 reserved_0x298[72];
358 u64 spec_ctrl; /* Guest version of SPEC_CTRL at 0x2E0 */
359} __packed;
360
361/* Save area definition for SEV-ES and SEV-SNP guests */
362struct sev_es_save_area {
363 struct vmcb_seg es;
364 struct vmcb_seg cs;
365 struct vmcb_seg ss;
366 struct vmcb_seg ds;
367 struct vmcb_seg fs;
368 struct vmcb_seg gs;
369 struct vmcb_seg gdtr;
370 struct vmcb_seg ldtr;
371 struct vmcb_seg idtr;
372 struct vmcb_seg tr;
373 u64 pl0_ssp;
374 u64 pl1_ssp;
375 u64 pl2_ssp;
376 u64 pl3_ssp;
377 u64 u_cet;
378 u8 reserved_0xc8[2];
379 u8 vmpl;
380 u8 cpl;
381 u8 reserved_0xcc[4];
382 u64 efer;
383 u8 reserved_0xd8[104];
384 u64 xss;
385 u64 cr4;
386 u64 cr3;
387 u64 cr0;
388 u64 dr7;
389 u64 dr6;
390 u64 rflags;
391 u64 rip;
392 u64 dr0;
393 u64 dr1;
394 u64 dr2;
395 u64 dr3;
396 u64 dr0_addr_mask;
397 u64 dr1_addr_mask;
398 u64 dr2_addr_mask;
399 u64 dr3_addr_mask;
400 u8 reserved_0x1c0[24];
401 u64 rsp;
402 u64 s_cet;
403 u64 ssp;
404 u64 isst_addr;
405 u64 rax;
406 u64 star;
407 u64 lstar;
408 u64 cstar;
409 u64 sfmask;
410 u64 kernel_gs_base;
411 u64 sysenter_cs;
412 u64 sysenter_esp;
413 u64 sysenter_eip;
414 u64 cr2;
415 u8 reserved_0x248[32];
416 u64 g_pat;
417 u64 dbgctl;
418 u64 br_from;
419 u64 br_to;
420 u64 last_excp_from;
421 u64 last_excp_to;
422 u8 reserved_0x298[80];
423 u32 pkru;
424 u32 tsc_aux;
425 u64 tsc_scale;
426 u64 tsc_offset;
427 u8 reserved_0x300[8];
428 u64 rcx;
429 u64 rdx;
430 u64 rbx;
431 u64 reserved_0x320; /* rsp already available at 0x01d8 */
432 u64 rbp;
433 u64 rsi;
434 u64 rdi;
435 u64 r8;
436 u64 r9;
437 u64 r10;
438 u64 r11;
439 u64 r12;
440 u64 r13;
441 u64 r14;
442 u64 r15;
443 u8 reserved_0x380[16];
444 u64 guest_exit_info_1;
445 u64 guest_exit_info_2;
446 u64 guest_exit_int_info;
447 u64 guest_nrip;
448 u64 sev_features;
449 u64 vintr_ctrl;
450 u64 guest_exit_code;
451 u64 virtual_tom;
452 u64 tlb_id;
453 u64 pcpu_id;
454 u64 event_inj;
455 u64 xcr0;
456 u8 reserved_0x3f0[16];
457
458 /* Floating point area */
459 u64 x87_dp;
460 u32 mxcsr;
461 u16 x87_ftw;
462 u16 x87_fsw;
463 u16 x87_fcw;
464 u16 x87_fop;
465 u16 x87_ds;
466 u16 x87_cs;
467 u64 x87_rip;
468 u8 fpreg_x87[80];
469 u8 fpreg_xmm[256];
470 u8 fpreg_ymm[256];
471} __packed;
472
473struct ghcb_save_area {
474 u8 reserved_0x0[203];
475 u8 cpl;
476 u8 reserved_0xcc[116];
477 u64 xss;
478 u8 reserved_0x148[24];
479 u64 dr7;
480 u8 reserved_0x168[16];
481 u64 rip;
482 u8 reserved_0x180[88];
483 u64 rsp;
484 u8 reserved_0x1e0[24];
485 u64 rax;
486 u8 reserved_0x200[264];
487 u64 rcx;
488 u64 rdx;
489 u64 rbx;
490 u8 reserved_0x320[8];
491 u64 rbp;
492 u64 rsi;
493 u64 rdi;
494 u64 r8;
495 u64 r9;
496 u64 r10;
497 u64 r11;
498 u64 r12;
499 u64 r13;
500 u64 r14;
501 u64 r15;
502 u8 reserved_0x380[16];
503 u64 sw_exit_code;
504 u64 sw_exit_info_1;
505 u64 sw_exit_info_2;
506 u64 sw_scratch;
507 u8 reserved_0x3b0[56];
508 u64 xcr0;
509 u8 valid_bitmap[16];
510 u64 x87_state_gpa;
511} __packed;
512
513#define GHCB_SHARED_BUF_SIZE 2032
514
515struct ghcb {
516 struct ghcb_save_area save;
517 u8 reserved_save[2048 - sizeof(struct ghcb_save_area)];
518
519 u8 shared_buffer[GHCB_SHARED_BUF_SIZE];
520
521 u8 reserved_0xff0[10];
522 u16 protocol_version; /* negotiated SEV-ES/GHCB protocol version */
523 u32 ghcb_usage;
524} __packed;
525
526struct vmcb {
527 struct vmcb_control_area control;
528 union {
529 struct vmcb_save_area save;
530
531 /*
532 * For SEV-ES VMs, the save area in the VMCB is used only to
533 * save/load host state. Guest state resides in a separate
534 * page, the aptly named VM Save Area (VMSA), that is encrypted
535 * with the guest's private key.
536 */
537 struct sev_es_save_area host_sev_es_save;
538 };
539} __packed;
540
541#define EXPECTED_VMCB_SAVE_AREA_SIZE 744
542#define EXPECTED_GHCB_SAVE_AREA_SIZE 1032
543#define EXPECTED_SEV_ES_SAVE_AREA_SIZE 1648
544#define EXPECTED_VMCB_CONTROL_AREA_SIZE 1024
545#define EXPECTED_GHCB_SIZE PAGE_SIZE
546
547#define BUILD_BUG_RESERVED_OFFSET(x, y) \
548 ASSERT_STRUCT_OFFSET(struct x, reserved ## _ ## y, y)
549
550static inline void __unused_size_checks(void)
551{
552 BUILD_BUG_ON(sizeof(struct vmcb_save_area) != EXPECTED_VMCB_SAVE_AREA_SIZE);
553 BUILD_BUG_ON(sizeof(struct ghcb_save_area) != EXPECTED_GHCB_SAVE_AREA_SIZE);
554 BUILD_BUG_ON(sizeof(struct sev_es_save_area) != EXPECTED_SEV_ES_SAVE_AREA_SIZE);
555 BUILD_BUG_ON(sizeof(struct vmcb_control_area) != EXPECTED_VMCB_CONTROL_AREA_SIZE);
556 BUILD_BUG_ON(offsetof(struct vmcb, save) != EXPECTED_VMCB_CONTROL_AREA_SIZE);
557 BUILD_BUG_ON(sizeof(struct ghcb) != EXPECTED_GHCB_SIZE);
558
559 /* Check offsets of reserved fields */
560
561 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xa0);
562 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xcc);
563 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xd8);
564 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x180);
565 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x248);
566 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x298);
567
568 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xc8);
569 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xcc);
570 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xd8);
571 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x1c0);
572 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x248);
573 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x298);
574 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x300);
575 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x320);
576 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x380);
577 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x3f0);
578
579 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x0);
580 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0xcc);
581 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x148);
582 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x168);
583 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x180);
584 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x1e0);
585 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x200);
586 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x320);
587 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x380);
588 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x3b0);
589
590 BUILD_BUG_RESERVED_OFFSET(ghcb, 0xff0);
591}
592
593#define SVM_CPUID_FUNC 0x8000000a
594
595#define SVM_SELECTOR_S_SHIFT 4
596#define SVM_SELECTOR_DPL_SHIFT 5
597#define SVM_SELECTOR_P_SHIFT 7
598#define SVM_SELECTOR_AVL_SHIFT 8
599#define SVM_SELECTOR_L_SHIFT 9
600#define SVM_SELECTOR_DB_SHIFT 10
601#define SVM_SELECTOR_G_SHIFT 11
602
603#define SVM_SELECTOR_TYPE_MASK (0xf)
604#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
605#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
606#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
607#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
608#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
609#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
610#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
611
612#define SVM_SELECTOR_WRITE_MASK (1 << 1)
613#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
614#define SVM_SELECTOR_CODE_MASK (1 << 3)
615
616#define SVM_EVTINJ_VEC_MASK 0xff
617
618#define SVM_EVTINJ_TYPE_SHIFT 8
619#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
620
621#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
622#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
623#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
624#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
625
626#define SVM_EVTINJ_VALID (1 << 31)
627#define SVM_EVTINJ_VALID_ERR (1 << 11)
628
629#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
630#define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
631
632#define SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
633#define SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
634#define SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
635#define SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
636
637#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
638#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
639
640#define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
641#define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
642#define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
643
644#define SVM_EXITINFO_REG_MASK 0x0F
645
646#define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
647
648/* GHCB Accessor functions */
649
650#define GHCB_BITMAP_IDX(field) \
651 (offsetof(struct ghcb_save_area, field) / sizeof(u64))
652
653#define DEFINE_GHCB_ACCESSORS(field) \
654 static __always_inline bool ghcb_##field##_is_valid(const struct ghcb *ghcb) \
655 { \
656 return test_bit(GHCB_BITMAP_IDX(field), \
657 (unsigned long *)&ghcb->save.valid_bitmap); \
658 } \
659 \
660 static __always_inline u64 ghcb_get_##field(struct ghcb *ghcb) \
661 { \
662 return ghcb->save.field; \
663 } \
664 \
665 static __always_inline u64 ghcb_get_##field##_if_valid(struct ghcb *ghcb) \
666 { \
667 return ghcb_##field##_is_valid(ghcb) ? ghcb->save.field : 0; \
668 } \
669 \
670 static __always_inline void ghcb_set_##field(struct ghcb *ghcb, u64 value) \
671 { \
672 __set_bit(GHCB_BITMAP_IDX(field), \
673 (unsigned long *)&ghcb->save.valid_bitmap); \
674 ghcb->save.field = value; \
675 }
676
677DEFINE_GHCB_ACCESSORS(cpl)
678DEFINE_GHCB_ACCESSORS(rip)
679DEFINE_GHCB_ACCESSORS(rsp)
680DEFINE_GHCB_ACCESSORS(rax)
681DEFINE_GHCB_ACCESSORS(rcx)
682DEFINE_GHCB_ACCESSORS(rdx)
683DEFINE_GHCB_ACCESSORS(rbx)
684DEFINE_GHCB_ACCESSORS(rbp)
685DEFINE_GHCB_ACCESSORS(rsi)
686DEFINE_GHCB_ACCESSORS(rdi)
687DEFINE_GHCB_ACCESSORS(r8)
688DEFINE_GHCB_ACCESSORS(r9)
689DEFINE_GHCB_ACCESSORS(r10)
690DEFINE_GHCB_ACCESSORS(r11)
691DEFINE_GHCB_ACCESSORS(r12)
692DEFINE_GHCB_ACCESSORS(r13)
693DEFINE_GHCB_ACCESSORS(r14)
694DEFINE_GHCB_ACCESSORS(r15)
695DEFINE_GHCB_ACCESSORS(sw_exit_code)
696DEFINE_GHCB_ACCESSORS(sw_exit_info_1)
697DEFINE_GHCB_ACCESSORS(sw_exit_info_2)
698DEFINE_GHCB_ACCESSORS(sw_scratch)
699DEFINE_GHCB_ACCESSORS(xcr0)
700
701#endif
702

Provided by KDAB

Privacy Policy
Improve your Profiling and Debugging skills
Find out more

source code of linux/arch/x86/include/asm/svm.h