KVM: SVM: Update max number of vCPUs supported for x2AVIC mode
[linux-2.6-microblaze.git] / arch / x86 / include / asm / svm.h
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 /*
9  * 32-bit intercept words in the VMCB Control Area, starting
10  * at Byte offset 000h.
11  */
12
13 enum intercept_words {
14         INTERCEPT_CR = 0,
15         INTERCEPT_DR,
16         INTERCEPT_EXCEPTION,
17         INTERCEPT_WORD3,
18         INTERCEPT_WORD4,
19         INTERCEPT_WORD5,
20         MAX_INTERCEPT,
21 };
22
23 enum {
24         /* Byte offset 000h (word 0) */
25         INTERCEPT_CR0_READ = 0,
26         INTERCEPT_CR3_READ = 3,
27         INTERCEPT_CR4_READ = 4,
28         INTERCEPT_CR8_READ = 8,
29         INTERCEPT_CR0_WRITE = 16,
30         INTERCEPT_CR3_WRITE = 16 + 3,
31         INTERCEPT_CR4_WRITE = 16 + 4,
32         INTERCEPT_CR8_WRITE = 16 + 8,
33         /* Byte offset 004h (word 1) */
34         INTERCEPT_DR0_READ = 32,
35         INTERCEPT_DR1_READ,
36         INTERCEPT_DR2_READ,
37         INTERCEPT_DR3_READ,
38         INTERCEPT_DR4_READ,
39         INTERCEPT_DR5_READ,
40         INTERCEPT_DR6_READ,
41         INTERCEPT_DR7_READ,
42         INTERCEPT_DR0_WRITE = 48,
43         INTERCEPT_DR1_WRITE,
44         INTERCEPT_DR2_WRITE,
45         INTERCEPT_DR3_WRITE,
46         INTERCEPT_DR4_WRITE,
47         INTERCEPT_DR5_WRITE,
48         INTERCEPT_DR6_WRITE,
49         INTERCEPT_DR7_WRITE,
50         /* Byte offset 008h (word 2) */
51         INTERCEPT_EXCEPTION_OFFSET = 64,
52         /* Byte offset 00Ch (word 3) */
53         INTERCEPT_INTR = 96,
54         INTERCEPT_NMI,
55         INTERCEPT_SMI,
56         INTERCEPT_INIT,
57         INTERCEPT_VINTR,
58         INTERCEPT_SELECTIVE_CR0,
59         INTERCEPT_STORE_IDTR,
60         INTERCEPT_STORE_GDTR,
61         INTERCEPT_STORE_LDTR,
62         INTERCEPT_STORE_TR,
63         INTERCEPT_LOAD_IDTR,
64         INTERCEPT_LOAD_GDTR,
65         INTERCEPT_LOAD_LDTR,
66         INTERCEPT_LOAD_TR,
67         INTERCEPT_RDTSC,
68         INTERCEPT_RDPMC,
69         INTERCEPT_PUSHF,
70         INTERCEPT_POPF,
71         INTERCEPT_CPUID,
72         INTERCEPT_RSM,
73         INTERCEPT_IRET,
74         INTERCEPT_INTn,
75         INTERCEPT_INVD,
76         INTERCEPT_PAUSE,
77         INTERCEPT_HLT,
78         INTERCEPT_INVLPG,
79         INTERCEPT_INVLPGA,
80         INTERCEPT_IOIO_PROT,
81         INTERCEPT_MSR_PROT,
82         INTERCEPT_TASK_SWITCH,
83         INTERCEPT_FERR_FREEZE,
84         INTERCEPT_SHUTDOWN,
85         /* Byte offset 010h (word 4) */
86         INTERCEPT_VMRUN = 128,
87         INTERCEPT_VMMCALL,
88         INTERCEPT_VMLOAD,
89         INTERCEPT_VMSAVE,
90         INTERCEPT_STGI,
91         INTERCEPT_CLGI,
92         INTERCEPT_SKINIT,
93         INTERCEPT_RDTSCP,
94         INTERCEPT_ICEBP,
95         INTERCEPT_WBINVD,
96         INTERCEPT_MONITOR,
97         INTERCEPT_MWAIT,
98         INTERCEPT_MWAIT_COND,
99         INTERCEPT_XSETBV,
100         INTERCEPT_RDPRU,
101         TRAP_EFER_WRITE,
102         TRAP_CR0_WRITE,
103         TRAP_CR1_WRITE,
104         TRAP_CR2_WRITE,
105         TRAP_CR3_WRITE,
106         TRAP_CR4_WRITE,
107         TRAP_CR5_WRITE,
108         TRAP_CR6_WRITE,
109         TRAP_CR7_WRITE,
110         TRAP_CR8_WRITE,
111         /* Byte offset 014h (word 5) */
112         INTERCEPT_INVLPGB = 160,
113         INTERCEPT_INVLPGB_ILLEGAL,
114         INTERCEPT_INVPCID,
115         INTERCEPT_MCOMMIT,
116         INTERCEPT_TLBSYNC,
117 };
118
119
120 struct __attribute__ ((__packed__)) vmcb_control_area {
121         u32 intercepts[MAX_INTERCEPT];
122         u32 reserved_1[15 - MAX_INTERCEPT];
123         u16 pause_filter_thresh;
124         u16 pause_filter_count;
125         u64 iopm_base_pa;
126         u64 msrpm_base_pa;
127         u64 tsc_offset;
128         u32 asid;
129         u8 tlb_ctl;
130         u8 reserved_2[3];
131         u32 int_ctl;
132         u32 int_vector;
133         u32 int_state;
134         u8 reserved_3[4];
135         u32 exit_code;
136         u32 exit_code_hi;
137         u64 exit_info_1;
138         u64 exit_info_2;
139         u32 exit_int_info;
140         u32 exit_int_info_err;
141         u64 nested_ctl;
142         u64 avic_vapic_bar;
143         u64 ghcb_gpa;
144         u32 event_inj;
145         u32 event_inj_err;
146         u64 nested_cr3;
147         u64 virt_ext;
148         u32 clean;
149         u32 reserved_5;
150         u64 next_rip;
151         u8 insn_len;
152         u8 insn_bytes[15];
153         u64 avic_backing_page;  /* Offset 0xe0 */
154         u8 reserved_6[8];       /* Offset 0xe8 */
155         u64 avic_logical_id;    /* Offset 0xf0 */
156         u64 avic_physical_id;   /* Offset 0xf8 */
157         u8 reserved_7[8];
158         u64 vmsa_pa;            /* Used for an SEV-ES guest */
159         u8 reserved_8[720];
160         /*
161          * Offset 0x3e0, 32 bytes reserved
162          * for use by hypervisor/software.
163          */
164         u8 reserved_sw[32];
165 };
166
167
168 #define TLB_CONTROL_DO_NOTHING 0
169 #define TLB_CONTROL_FLUSH_ALL_ASID 1
170 #define TLB_CONTROL_FLUSH_ASID 3
171 #define TLB_CONTROL_FLUSH_ASID_LOCAL 7
172
173 #define V_TPR_MASK 0x0f
174
175 #define V_IRQ_SHIFT 8
176 #define V_IRQ_MASK (1 << V_IRQ_SHIFT)
177
178 #define V_GIF_SHIFT 9
179 #define V_GIF_MASK (1 << V_GIF_SHIFT)
180
181 #define V_INTR_PRIO_SHIFT 16
182 #define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
183
184 #define V_IGN_TPR_SHIFT 20
185 #define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
186
187 #define V_IRQ_INJECTION_BITS_MASK (V_IRQ_MASK | V_INTR_PRIO_MASK | V_IGN_TPR_MASK)
188
189 #define V_INTR_MASKING_SHIFT 24
190 #define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
191
192 #define V_GIF_ENABLE_SHIFT 25
193 #define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
194
195 #define AVIC_ENABLE_SHIFT 31
196 #define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
197
198 #define X2APIC_MODE_SHIFT 30
199 #define X2APIC_MODE_MASK (1 << X2APIC_MODE_SHIFT)
200
201 #define LBR_CTL_ENABLE_MASK BIT_ULL(0)
202 #define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
203
204 #define SVM_INTERRUPT_SHADOW_MASK       BIT_ULL(0)
205 #define SVM_GUEST_INTERRUPT_MASK        BIT_ULL(1)
206
207 #define SVM_IOIO_STR_SHIFT 2
208 #define SVM_IOIO_REP_SHIFT 3
209 #define SVM_IOIO_SIZE_SHIFT 4
210 #define SVM_IOIO_ASIZE_SHIFT 7
211
212 #define SVM_IOIO_TYPE_MASK 1
213 #define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
214 #define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
215 #define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
216 #define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
217
218 #define SVM_VM_CR_VALID_MASK    0x001fULL
219 #define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL
220 #define SVM_VM_CR_SVM_DIS_MASK  0x0010ULL
221
222 #define SVM_NESTED_CTL_NP_ENABLE        BIT(0)
223 #define SVM_NESTED_CTL_SEV_ENABLE       BIT(1)
224 #define SVM_NESTED_CTL_SEV_ES_ENABLE    BIT(2)
225
226
227 #define SVM_TSC_RATIO_RSVD      0xffffff0000000000ULL
228 #define SVM_TSC_RATIO_MIN       0x0000000000000001ULL
229 #define SVM_TSC_RATIO_MAX       0x000000ffffffffffULL
230 #define SVM_TSC_RATIO_DEFAULT   0x0100000000ULL
231
232
233 /* AVIC */
234 #define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK    (0xFFULL)
235 #define AVIC_LOGICAL_ID_ENTRY_VALID_BIT                 31
236 #define AVIC_LOGICAL_ID_ENTRY_VALID_MASK                (1 << 31)
237
238 #define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK    GENMASK_ULL(11, 0)
239 #define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK        (0xFFFFFFFFFFULL << 12)
240 #define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK          (1ULL << 62)
241 #define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK               (1ULL << 63)
242 #define AVIC_PHYSICAL_ID_TABLE_SIZE_MASK                (0xFFULL)
243
244 #define AVIC_DOORBELL_PHYSICAL_ID_MASK                  GENMASK_ULL(11, 0)
245
246 #define VMCB_AVIC_APIC_BAR_MASK                         0xFFFFFFFFFF000ULL
247
248 #define AVIC_UNACCEL_ACCESS_WRITE_MASK          1
249 #define AVIC_UNACCEL_ACCESS_OFFSET_MASK         0xFF0
250 #define AVIC_UNACCEL_ACCESS_VECTOR_MASK         0xFFFFFFFF
251
252 enum avic_ipi_failure_cause {
253         AVIC_IPI_FAILURE_INVALID_INT_TYPE,
254         AVIC_IPI_FAILURE_TARGET_NOT_RUNNING,
255         AVIC_IPI_FAILURE_INVALID_TARGET,
256         AVIC_IPI_FAILURE_INVALID_BACKING_PAGE,
257 };
258
259
260 /*
261  * For AVIC, the max index allowed for physical APIC ID
262  * table is 0xff (255).
263  */
264 #define AVIC_MAX_PHYSICAL_ID            0XFEULL
265
266 /*
267  * For x2AVIC, the max index allowed for physical APIC ID
268  * table is 0x1ff (511).
269  */
270 #define X2AVIC_MAX_PHYSICAL_ID          0x1FFUL
271
272 #define AVIC_HPA_MASK   ~((0xFFFULL << 52) | 0xFFF)
273 #define VMCB_AVIC_APIC_BAR_MASK         0xFFFFFFFFFF000ULL
274
275
276 struct vmcb_seg {
277         u16 selector;
278         u16 attrib;
279         u32 limit;
280         u64 base;
281 } __packed;
282
283 /* Save area definition for legacy and SEV-MEM guests */
284 struct vmcb_save_area {
285         struct vmcb_seg es;
286         struct vmcb_seg cs;
287         struct vmcb_seg ss;
288         struct vmcb_seg ds;
289         struct vmcb_seg fs;
290         struct vmcb_seg gs;
291         struct vmcb_seg gdtr;
292         struct vmcb_seg ldtr;
293         struct vmcb_seg idtr;
294         struct vmcb_seg tr;
295         u8 reserved_1[42];
296         u8 vmpl;
297         u8 cpl;
298         u8 reserved_2[4];
299         u64 efer;
300         u8 reserved_3[112];
301         u64 cr4;
302         u64 cr3;
303         u64 cr0;
304         u64 dr7;
305         u64 dr6;
306         u64 rflags;
307         u64 rip;
308         u8 reserved_4[88];
309         u64 rsp;
310         u64 s_cet;
311         u64 ssp;
312         u64 isst_addr;
313         u64 rax;
314         u64 star;
315         u64 lstar;
316         u64 cstar;
317         u64 sfmask;
318         u64 kernel_gs_base;
319         u64 sysenter_cs;
320         u64 sysenter_esp;
321         u64 sysenter_eip;
322         u64 cr2;
323         u8 reserved_5[32];
324         u64 g_pat;
325         u64 dbgctl;
326         u64 br_from;
327         u64 br_to;
328         u64 last_excp_from;
329         u64 last_excp_to;
330         u8 reserved_6[72];
331         u32 spec_ctrl;          /* Guest version of SPEC_CTRL at 0x2E0 */
332 } __packed;
333
334 /* Save area definition for SEV-ES and SEV-SNP guests */
335 struct sev_es_save_area {
336         struct vmcb_seg es;
337         struct vmcb_seg cs;
338         struct vmcb_seg ss;
339         struct vmcb_seg ds;
340         struct vmcb_seg fs;
341         struct vmcb_seg gs;
342         struct vmcb_seg gdtr;
343         struct vmcb_seg ldtr;
344         struct vmcb_seg idtr;
345         struct vmcb_seg tr;
346         u64 vmpl0_ssp;
347         u64 vmpl1_ssp;
348         u64 vmpl2_ssp;
349         u64 vmpl3_ssp;
350         u64 u_cet;
351         u8 reserved_1[2];
352         u8 vmpl;
353         u8 cpl;
354         u8 reserved_2[4];
355         u64 efer;
356         u8 reserved_3[104];
357         u64 xss;
358         u64 cr4;
359         u64 cr3;
360         u64 cr0;
361         u64 dr7;
362         u64 dr6;
363         u64 rflags;
364         u64 rip;
365         u64 dr0;
366         u64 dr1;
367         u64 dr2;
368         u64 dr3;
369         u64 dr0_addr_mask;
370         u64 dr1_addr_mask;
371         u64 dr2_addr_mask;
372         u64 dr3_addr_mask;
373         u8 reserved_4[24];
374         u64 rsp;
375         u64 s_cet;
376         u64 ssp;
377         u64 isst_addr;
378         u64 rax;
379         u64 star;
380         u64 lstar;
381         u64 cstar;
382         u64 sfmask;
383         u64 kernel_gs_base;
384         u64 sysenter_cs;
385         u64 sysenter_esp;
386         u64 sysenter_eip;
387         u64 cr2;
388         u8 reserved_5[32];
389         u64 g_pat;
390         u64 dbgctl;
391         u64 br_from;
392         u64 br_to;
393         u64 last_excp_from;
394         u64 last_excp_to;
395         u8 reserved_7[80];
396         u32 pkru;
397         u8 reserved_8[20];
398         u64 reserved_9;         /* rax already available at 0x01f8 */
399         u64 rcx;
400         u64 rdx;
401         u64 rbx;
402         u64 reserved_10;        /* rsp already available at 0x01d8 */
403         u64 rbp;
404         u64 rsi;
405         u64 rdi;
406         u64 r8;
407         u64 r9;
408         u64 r10;
409         u64 r11;
410         u64 r12;
411         u64 r13;
412         u64 r14;
413         u64 r15;
414         u8 reserved_11[16];
415         u64 guest_exit_info_1;
416         u64 guest_exit_info_2;
417         u64 guest_exit_int_info;
418         u64 guest_nrip;
419         u64 sev_features;
420         u64 vintr_ctrl;
421         u64 guest_exit_code;
422         u64 virtual_tom;
423         u64 tlb_id;
424         u64 pcpu_id;
425         u64 event_inj;
426         u64 xcr0;
427         u8 reserved_12[16];
428
429         /* Floating point area */
430         u64 x87_dp;
431         u32 mxcsr;
432         u16 x87_ftw;
433         u16 x87_fsw;
434         u16 x87_fcw;
435         u16 x87_fop;
436         u16 x87_ds;
437         u16 x87_cs;
438         u64 x87_rip;
439         u8 fpreg_x87[80];
440         u8 fpreg_xmm[256];
441         u8 fpreg_ymm[256];
442 } __packed;
443
444 struct ghcb_save_area {
445         u8 reserved_1[203];
446         u8 cpl;
447         u8 reserved_2[116];
448         u64 xss;
449         u8 reserved_3[24];
450         u64 dr7;
451         u8 reserved_4[16];
452         u64 rip;
453         u8 reserved_5[88];
454         u64 rsp;
455         u8 reserved_6[24];
456         u64 rax;
457         u8 reserved_7[264];
458         u64 rcx;
459         u64 rdx;
460         u64 rbx;
461         u8 reserved_8[8];
462         u64 rbp;
463         u64 rsi;
464         u64 rdi;
465         u64 r8;
466         u64 r9;
467         u64 r10;
468         u64 r11;
469         u64 r12;
470         u64 r13;
471         u64 r14;
472         u64 r15;
473         u8 reserved_9[16];
474         u64 sw_exit_code;
475         u64 sw_exit_info_1;
476         u64 sw_exit_info_2;
477         u64 sw_scratch;
478         u8 reserved_10[56];
479         u64 xcr0;
480         u8 valid_bitmap[16];
481         u64 x87_state_gpa;
482 } __packed;
483
484 #define GHCB_SHARED_BUF_SIZE    2032
485
486 struct ghcb {
487         struct ghcb_save_area save;
488         u8 reserved_save[2048 - sizeof(struct ghcb_save_area)];
489
490         u8 shared_buffer[GHCB_SHARED_BUF_SIZE];
491
492         u8 reserved_1[10];
493         u16 protocol_version;   /* negotiated SEV-ES/GHCB protocol version */
494         u32 ghcb_usage;
495 } __packed;
496
497
498 #define EXPECTED_VMCB_SAVE_AREA_SIZE            740
499 #define EXPECTED_GHCB_SAVE_AREA_SIZE            1032
500 #define EXPECTED_SEV_ES_SAVE_AREA_SIZE          1648
501 #define EXPECTED_VMCB_CONTROL_AREA_SIZE         1024
502 #define EXPECTED_GHCB_SIZE                      PAGE_SIZE
503
504 static inline void __unused_size_checks(void)
505 {
506         BUILD_BUG_ON(sizeof(struct vmcb_save_area)      != EXPECTED_VMCB_SAVE_AREA_SIZE);
507         BUILD_BUG_ON(sizeof(struct ghcb_save_area)      != EXPECTED_GHCB_SAVE_AREA_SIZE);
508         BUILD_BUG_ON(sizeof(struct sev_es_save_area)    != EXPECTED_SEV_ES_SAVE_AREA_SIZE);
509         BUILD_BUG_ON(sizeof(struct vmcb_control_area)   != EXPECTED_VMCB_CONTROL_AREA_SIZE);
510         BUILD_BUG_ON(sizeof(struct ghcb)                != EXPECTED_GHCB_SIZE);
511 }
512
513 struct vmcb {
514         struct vmcb_control_area control;
515         struct vmcb_save_area save;
516 } __packed;
517
518 #define SVM_CPUID_FUNC 0x8000000a
519
520 #define SVM_VM_CR_SVM_DISABLE 4
521
522 #define SVM_SELECTOR_S_SHIFT 4
523 #define SVM_SELECTOR_DPL_SHIFT 5
524 #define SVM_SELECTOR_P_SHIFT 7
525 #define SVM_SELECTOR_AVL_SHIFT 8
526 #define SVM_SELECTOR_L_SHIFT 9
527 #define SVM_SELECTOR_DB_SHIFT 10
528 #define SVM_SELECTOR_G_SHIFT 11
529
530 #define SVM_SELECTOR_TYPE_MASK (0xf)
531 #define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
532 #define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
533 #define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
534 #define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
535 #define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
536 #define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
537 #define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
538
539 #define SVM_SELECTOR_WRITE_MASK (1 << 1)
540 #define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
541 #define SVM_SELECTOR_CODE_MASK (1 << 3)
542
543 #define SVM_EVTINJ_VEC_MASK 0xff
544
545 #define SVM_EVTINJ_TYPE_SHIFT 8
546 #define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
547
548 #define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
549 #define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
550 #define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
551 #define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
552
553 #define SVM_EVTINJ_VALID (1 << 31)
554 #define SVM_EVTINJ_VALID_ERR (1 << 11)
555
556 #define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
557 #define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
558
559 #define SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
560 #define SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
561 #define SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
562 #define SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
563
564 #define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
565 #define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
566
567 #define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
568 #define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
569 #define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
570
571 #define SVM_EXITINFO_REG_MASK 0x0F
572
573 #define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
574
575 /* GHCB Accessor functions */
576
577 #define GHCB_BITMAP_IDX(field)                                                  \
578         (offsetof(struct ghcb_save_area, field) / sizeof(u64))
579
580 #define DEFINE_GHCB_ACCESSORS(field)                                            \
581         static __always_inline bool ghcb_##field##_is_valid(const struct ghcb *ghcb) \
582         {                                                                       \
583                 return test_bit(GHCB_BITMAP_IDX(field),                         \
584                                 (unsigned long *)&ghcb->save.valid_bitmap);     \
585         }                                                                       \
586                                                                                 \
587         static __always_inline u64 ghcb_get_##field(struct ghcb *ghcb)          \
588         {                                                                       \
589                 return ghcb->save.field;                                        \
590         }                                                                       \
591                                                                                 \
592         static __always_inline u64 ghcb_get_##field##_if_valid(struct ghcb *ghcb) \
593         {                                                                       \
594                 return ghcb_##field##_is_valid(ghcb) ? ghcb->save.field : 0;    \
595         }                                                                       \
596                                                                                 \
597         static __always_inline void ghcb_set_##field(struct ghcb *ghcb, u64 value) \
598         {                                                                       \
599                 __set_bit(GHCB_BITMAP_IDX(field),                               \
600                           (unsigned long *)&ghcb->save.valid_bitmap);           \
601                 ghcb->save.field = value;                                       \
602         }
603
604 DEFINE_GHCB_ACCESSORS(cpl)
605 DEFINE_GHCB_ACCESSORS(rip)
606 DEFINE_GHCB_ACCESSORS(rsp)
607 DEFINE_GHCB_ACCESSORS(rax)
608 DEFINE_GHCB_ACCESSORS(rcx)
609 DEFINE_GHCB_ACCESSORS(rdx)
610 DEFINE_GHCB_ACCESSORS(rbx)
611 DEFINE_GHCB_ACCESSORS(rbp)
612 DEFINE_GHCB_ACCESSORS(rsi)
613 DEFINE_GHCB_ACCESSORS(rdi)
614 DEFINE_GHCB_ACCESSORS(r8)
615 DEFINE_GHCB_ACCESSORS(r9)
616 DEFINE_GHCB_ACCESSORS(r10)
617 DEFINE_GHCB_ACCESSORS(r11)
618 DEFINE_GHCB_ACCESSORS(r12)
619 DEFINE_GHCB_ACCESSORS(r13)
620 DEFINE_GHCB_ACCESSORS(r14)
621 DEFINE_GHCB_ACCESSORS(r15)
622 DEFINE_GHCB_ACCESSORS(sw_exit_code)
623 DEFINE_GHCB_ACCESSORS(sw_exit_info_1)
624 DEFINE_GHCB_ACCESSORS(sw_exit_info_2)
625 DEFINE_GHCB_ACCESSORS(sw_scratch)
626 DEFINE_GHCB_ACCESSORS(xcr0)
627
628 #endif