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/*
256 * GA_LOG_INTR is a synthetic flag that's never propagated to hardware-visible
257 * tables. GA_LOG_INTR is set if the vCPU needs device posted IRQs to generate
258 * GA log interrupts to wake the vCPU (because it's blocking or about to block).
259 */
260#define AVIC_PHYSICAL_ID_ENTRY_GA_LOG_INTR BIT_ULL(61)
261
262#define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK GENMASK_ULL(11, 0)
263#define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK GENMASK_ULL(51, 12)
264#define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK (1ULL << 62)
265#define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK (1ULL << 63)
266#define AVIC_PHYSICAL_ID_TABLE_SIZE_MASK (0xFFULL)
267
268#define AVIC_DOORBELL_PHYSICAL_ID_MASK GENMASK_ULL(11, 0)
269
270#define AVIC_UNACCEL_ACCESS_WRITE_MASK 1
271#define AVIC_UNACCEL_ACCESS_OFFSET_MASK 0xFF0
272#define AVIC_UNACCEL_ACCESS_VECTOR_MASK 0xFFFFFFFF
273
274enum avic_ipi_failure_cause {
275 AVIC_IPI_FAILURE_INVALID_INT_TYPE,
276 AVIC_IPI_FAILURE_TARGET_NOT_RUNNING,
277 AVIC_IPI_FAILURE_INVALID_TARGET,
278 AVIC_IPI_FAILURE_INVALID_BACKING_PAGE,
279 AVIC_IPI_FAILURE_INVALID_IPI_VECTOR,
280};
281
282#define AVIC_PHYSICAL_MAX_INDEX_MASK GENMASK_ULL(11, 0)
283
284/*
285 * For AVIC, the max index allowed for physical APIC ID table is 0xfe (254), as
286 * 0xff is a broadcast to all CPUs, i.e. can't be targeted individually.
287 */
288#define AVIC_MAX_PHYSICAL_ID 0XFEULL
289
290/*
291 * For x2AVIC, the max index allowed for physical APIC ID table is 0x1ff (511).
292 * With X86_FEATURE_X2AVIC_EXT, the max index is increased to 0xfff (4095).
293 */
294#define X2AVIC_MAX_PHYSICAL_ID 0x1FFUL
295#define X2AVIC_4K_MAX_PHYSICAL_ID 0xFFFUL
296
297static_assert((AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == AVIC_MAX_PHYSICAL_ID);
298static_assert((X2AVIC_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == X2AVIC_MAX_PHYSICAL_ID);
299static_assert((X2AVIC_4K_MAX_PHYSICAL_ID & AVIC_PHYSICAL_MAX_INDEX_MASK) == X2AVIC_4K_MAX_PHYSICAL_ID);
300
301#define SVM_SEV_FEAT_SNP_ACTIVE BIT(0)
302#define SVM_SEV_FEAT_RESTRICTED_INJECTION BIT(3)
303#define SVM_SEV_FEAT_ALTERNATE_INJECTION BIT(4)
304#define SVM_SEV_FEAT_DEBUG_SWAP BIT(5)
305#define SVM_SEV_FEAT_SECURE_TSC BIT(9)
306
307#define VMCB_ALLOWED_SEV_FEATURES_VALID BIT_ULL(63)
308
309struct vmcb_seg {
310 u16 selector;
311 u16 attrib;
312 u32 limit;
313 u64 base;
314} __packed;
315
316/* Save area definition for legacy and SEV-MEM guests */
317struct vmcb_save_area {
318 struct vmcb_seg es;
319 struct vmcb_seg cs;
320 struct vmcb_seg ss;
321 struct vmcb_seg ds;
322 struct vmcb_seg fs;
323 struct vmcb_seg gs;
324 struct vmcb_seg gdtr;
325 struct vmcb_seg ldtr;
326 struct vmcb_seg idtr;
327 struct vmcb_seg tr;
328 /* Reserved fields are named following their struct offset */
329 u8 reserved_0xa0[42];
330 u8 vmpl;
331 u8 cpl;
332 u8 reserved_0xcc[4];
333 u64 efer;
334 u8 reserved_0xd8[112];
335 u64 cr4;
336 u64 cr3;
337 u64 cr0;
338 u64 dr7;
339 u64 dr6;
340 u64 rflags;
341 u64 rip;
342 u8 reserved_0x180[88];
343 u64 rsp;
344 u64 s_cet;
345 u64 ssp;
346 u64 isst_addr;
347 u64 rax;
348 u64 star;
349 u64 lstar;
350 u64 cstar;
351 u64 sfmask;
352 u64 kernel_gs_base;
353 u64 sysenter_cs;
354 u64 sysenter_esp;
355 u64 sysenter_eip;
356 u64 cr2;
357 u8 reserved_0x248[32];
358 u64 g_pat;
359 u64 dbgctl;
360 u64 br_from;
361 u64 br_to;
362 u64 last_excp_from;
363 u64 last_excp_to;
364 u8 reserved_0x298[72];
365 u64 spec_ctrl; /* Guest version of SPEC_CTRL at 0x2E0 */
366} __packed;
367
368/* Save area definition for SEV-ES and SEV-SNP guests */
369struct sev_es_save_area {
370 struct vmcb_seg es;
371 struct vmcb_seg cs;
372 struct vmcb_seg ss;
373 struct vmcb_seg ds;
374 struct vmcb_seg fs;
375 struct vmcb_seg gs;
376 struct vmcb_seg gdtr;
377 struct vmcb_seg ldtr;
378 struct vmcb_seg idtr;
379 struct vmcb_seg tr;
380 u64 pl0_ssp;
381 u64 pl1_ssp;
382 u64 pl2_ssp;
383 u64 pl3_ssp;
384 u64 u_cet;
385 u8 reserved_0xc8[2];
386 u8 vmpl;
387 u8 cpl;
388 u8 reserved_0xcc[4];
389 u64 efer;
390 u8 reserved_0xd8[104];
391 u64 xss;
392 u64 cr4;
393 u64 cr3;
394 u64 cr0;
395 u64 dr7;
396 u64 dr6;
397 u64 rflags;
398 u64 rip;
399 u64 dr0;
400 u64 dr1;
401 u64 dr2;
402 u64 dr3;
403 u64 dr0_addr_mask;
404 u64 dr1_addr_mask;
405 u64 dr2_addr_mask;
406 u64 dr3_addr_mask;
407 u8 reserved_0x1c0[24];
408 u64 rsp;
409 u64 s_cet;
410 u64 ssp;
411 u64 isst_addr;
412 u64 rax;
413 u64 star;
414 u64 lstar;
415 u64 cstar;
416 u64 sfmask;
417 u64 kernel_gs_base;
418 u64 sysenter_cs;
419 u64 sysenter_esp;
420 u64 sysenter_eip;
421 u64 cr2;
422 u8 reserved_0x248[32];
423 u64 g_pat;
424 u64 dbgctl;
425 u64 br_from;
426 u64 br_to;
427 u64 last_excp_from;
428 u64 last_excp_to;
429 u8 reserved_0x298[80];
430 u32 pkru;
431 u32 tsc_aux;
432 u64 tsc_scale;
433 u64 tsc_offset;
434 u8 reserved_0x300[8];
435 u64 rcx;
436 u64 rdx;
437 u64 rbx;
438 u64 reserved_0x320; /* rsp already available at 0x01d8 */
439 u64 rbp;
440 u64 rsi;
441 u64 rdi;
442 u64 r8;
443 u64 r9;
444 u64 r10;
445 u64 r11;
446 u64 r12;
447 u64 r13;
448 u64 r14;
449 u64 r15;
450 u8 reserved_0x380[16];
451 u64 guest_exit_info_1;
452 u64 guest_exit_info_2;
453 u64 guest_exit_int_info;
454 u64 guest_nrip;
455 u64 sev_features;
456 u64 vintr_ctrl;
457 u64 guest_exit_code;
458 u64 virtual_tom;
459 u64 tlb_id;
460 u64 pcpu_id;
461 u64 event_inj;
462 u64 xcr0;
463 u8 reserved_0x3f0[16];
464
465 /* Floating point area */
466 u64 x87_dp;
467 u32 mxcsr;
468 u16 x87_ftw;
469 u16 x87_fsw;
470 u16 x87_fcw;
471 u16 x87_fop;
472 u16 x87_ds;
473 u16 x87_cs;
474 u64 x87_rip;
475 u8 fpreg_x87[80];
476 u8 fpreg_xmm[256];
477 u8 fpreg_ymm[256];
478} __packed;
479
480struct ghcb_save_area {
481 u8 reserved_0x0[203];
482 u8 cpl;
483 u8 reserved_0xcc[116];
484 u64 xss;
485 u8 reserved_0x148[24];
486 u64 dr7;
487 u8 reserved_0x168[16];
488 u64 rip;
489 u8 reserved_0x180[88];
490 u64 rsp;
491 u8 reserved_0x1e0[24];
492 u64 rax;
493 u8 reserved_0x200[264];
494 u64 rcx;
495 u64 rdx;
496 u64 rbx;
497 u8 reserved_0x320[8];
498 u64 rbp;
499 u64 rsi;
500 u64 rdi;
501 u64 r8;
502 u64 r9;
503 u64 r10;
504 u64 r11;
505 u64 r12;
506 u64 r13;
507 u64 r14;
508 u64 r15;
509 u8 reserved_0x380[16];
510 u64 sw_exit_code;
511 u64 sw_exit_info_1;
512 u64 sw_exit_info_2;
513 u64 sw_scratch;
514 u8 reserved_0x3b0[56];
515 u64 xcr0;
516 u8 valid_bitmap[16];
517 u64 x87_state_gpa;
518} __packed;
519
520#define GHCB_SHARED_BUF_SIZE 2032
521
522struct ghcb {
523 struct ghcb_save_area save;
524 u8 reserved_save[2048 - sizeof(struct ghcb_save_area)];
525
526 u8 shared_buffer[GHCB_SHARED_BUF_SIZE];
527
528 u8 reserved_0xff0[10];
529 u16 protocol_version; /* negotiated SEV-ES/GHCB protocol version */
530 u32 ghcb_usage;
531} __packed;
532
533struct vmcb {
534 struct vmcb_control_area control;
535 union {
536 struct vmcb_save_area save;
537
538 /*
539 * For SEV-ES VMs, the save area in the VMCB is used only to
540 * save/load host state. Guest state resides in a separate
541 * page, the aptly named VM Save Area (VMSA), that is encrypted
542 * with the guest's private key.
543 */
544 struct sev_es_save_area host_sev_es_save;
545 };
546} __packed;
547
548#define EXPECTED_VMCB_SAVE_AREA_SIZE 744
549#define EXPECTED_GHCB_SAVE_AREA_SIZE 1032
550#define EXPECTED_SEV_ES_SAVE_AREA_SIZE 1648
551#define EXPECTED_VMCB_CONTROL_AREA_SIZE 1024
552#define EXPECTED_GHCB_SIZE PAGE_SIZE
553
554#define BUILD_BUG_RESERVED_OFFSET(x, y) \
555 ASSERT_STRUCT_OFFSET(struct x, reserved ## _ ## y, y)
556
557static inline void __unused_size_checks(void)
558{
559 BUILD_BUG_ON(sizeof(struct vmcb_save_area) != EXPECTED_VMCB_SAVE_AREA_SIZE);
560 BUILD_BUG_ON(sizeof(struct ghcb_save_area) != EXPECTED_GHCB_SAVE_AREA_SIZE);
561 BUILD_BUG_ON(sizeof(struct sev_es_save_area) != EXPECTED_SEV_ES_SAVE_AREA_SIZE);
562 BUILD_BUG_ON(sizeof(struct vmcb_control_area) != EXPECTED_VMCB_CONTROL_AREA_SIZE);
563 BUILD_BUG_ON(offsetof(struct vmcb, save) != EXPECTED_VMCB_CONTROL_AREA_SIZE);
564 BUILD_BUG_ON(sizeof(struct ghcb) != EXPECTED_GHCB_SIZE);
565
566 /* Check offsets of reserved fields */
567
568 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xa0);
569 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xcc);
570 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xd8);
571 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x180);
572 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x248);
573 BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x298);
574
575 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xc8);
576 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xcc);
577 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xd8);
578 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x1c0);
579 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x248);
580 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x298);
581 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x300);
582 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x320);
583 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x380);
584 BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x3f0);
585
586 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x0);
587 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0xcc);
588 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x148);
589 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x168);
590 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x180);
591 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x1e0);
592 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x200);
593 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x320);
594 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x380);
595 BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x3b0);
596
597 BUILD_BUG_RESERVED_OFFSET(ghcb, 0xff0);
598}
599
600#define SVM_CPUID_FUNC 0x8000000a
601
602#define SVM_SELECTOR_S_SHIFT 4
603#define SVM_SELECTOR_DPL_SHIFT 5
604#define SVM_SELECTOR_P_SHIFT 7
605#define SVM_SELECTOR_AVL_SHIFT 8
606#define SVM_SELECTOR_L_SHIFT 9
607#define SVM_SELECTOR_DB_SHIFT 10
608#define SVM_SELECTOR_G_SHIFT 11
609
610#define SVM_SELECTOR_TYPE_MASK (0xf)
611#define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
612#define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
613#define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
614#define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
615#define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
616#define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
617#define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
618
619#define SVM_SELECTOR_WRITE_MASK (1 << 1)
620#define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
621#define SVM_SELECTOR_CODE_MASK (1 << 3)
622
623#define SVM_EVTINJ_VEC_MASK 0xff
624
625#define SVM_EVTINJ_TYPE_SHIFT 8
626#define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
627
628#define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
629#define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
630#define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
631#define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
632
633#define SVM_EVTINJ_VALID (1 << 31)
634#define SVM_EVTINJ_VALID_ERR (1 << 11)
635
636#define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
637#define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
638
639#define SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
640#define SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
641#define SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
642#define SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
643
644#define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
645#define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
646
647#define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
648#define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
649#define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
650
651#define SVM_EXITINFO_REG_MASK 0x0F
652
653#define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
654
655/* GHCB Accessor functions */
656
657#define GHCB_BITMAP_IDX(field) \
658 (offsetof(struct ghcb_save_area, field) / sizeof(u64))
659
660#define DEFINE_GHCB_ACCESSORS(field) \
661 static __always_inline bool ghcb_##field##_is_valid(const struct ghcb *ghcb) \
662 { \
663 return test_bit(GHCB_BITMAP_IDX(field), \
664 (unsigned long *)&ghcb->save.valid_bitmap); \
665 } \
666 \
667 static __always_inline u64 ghcb_get_##field(struct ghcb *ghcb) \
668 { \
669 return ghcb->save.field; \
670 } \
671 \
672 static __always_inline u64 ghcb_get_##field##_if_valid(struct ghcb *ghcb) \
673 { \
674 return ghcb_##field##_is_valid(ghcb) ? ghcb->save.field : 0; \
675 } \
676 \
677 static __always_inline void ghcb_set_##field(struct ghcb *ghcb, u64 value) \
678 { \
679 __set_bit(GHCB_BITMAP_IDX(field), \
680 (unsigned long *)&ghcb->save.valid_bitmap); \
681 ghcb->save.field = value; \
682 }
683
684DEFINE_GHCB_ACCESSORS(cpl)
685DEFINE_GHCB_ACCESSORS(rip)
686DEFINE_GHCB_ACCESSORS(rsp)
687DEFINE_GHCB_ACCESSORS(rax)
688DEFINE_GHCB_ACCESSORS(rcx)
689DEFINE_GHCB_ACCESSORS(rdx)
690DEFINE_GHCB_ACCESSORS(rbx)
691DEFINE_GHCB_ACCESSORS(rbp)
692DEFINE_GHCB_ACCESSORS(rsi)
693DEFINE_GHCB_ACCESSORS(rdi)
694DEFINE_GHCB_ACCESSORS(r8)
695DEFINE_GHCB_ACCESSORS(r9)
696DEFINE_GHCB_ACCESSORS(r10)
697DEFINE_GHCB_ACCESSORS(r11)
698DEFINE_GHCB_ACCESSORS(r12)
699DEFINE_GHCB_ACCESSORS(r13)
700DEFINE_GHCB_ACCESSORS(r14)
701DEFINE_GHCB_ACCESSORS(r15)
702DEFINE_GHCB_ACCESSORS(sw_exit_code)
703DEFINE_GHCB_ACCESSORS(sw_exit_info_1)
704DEFINE_GHCB_ACCESSORS(sw_exit_info_2)
705DEFINE_GHCB_ACCESSORS(sw_scratch)
706DEFINE_GHCB_ACCESSORS(xcr0)
707DEFINE_GHCB_ACCESSORS(xss)
708
709#endif
710

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