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 <asm/hyperv-tlfs.h>
9  
10  /*
11   * 32-bit intercept words in the VMCB Control Area, starting
12   * at Byte offset 000h.
13   */
14  
15  enum 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  
25  enum {
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  };
120  
121  
122  struct __attribute__ ((__packed__)) vmcb_control_area {
123  	u32 intercepts[MAX_INTERCEPT];
124  	u32 reserved_1[15 - MAX_INTERCEPT];
125  	u16 pause_filter_thresh;
126  	u16 pause_filter_count;
127  	u64 iopm_base_pa;
128  	u64 msrpm_base_pa;
129  	u64 tsc_offset;
130  	u32 asid;
131  	u8 tlb_ctl;
132  	u8 reserved_2[3];
133  	u32 int_ctl;
134  	u32 int_vector;
135  	u32 int_state;
136  	u8 reserved_3[4];
137  	u32 exit_code;
138  	u32 exit_code_hi;
139  	u64 exit_info_1;
140  	u64 exit_info_2;
141  	u32 exit_int_info;
142  	u32 exit_int_info_err;
143  	u64 nested_ctl;
144  	u64 avic_vapic_bar;
145  	u64 ghcb_gpa;
146  	u32 event_inj;
147  	u32 event_inj_err;
148  	u64 nested_cr3;
149  	u64 virt_ext;
150  	u32 clean;
151  	u32 reserved_5;
152  	u64 next_rip;
153  	u8 insn_len;
154  	u8 insn_bytes[15];
155  	u64 avic_backing_page;	/* Offset 0xe0 */
156  	u8 reserved_6[8];	/* Offset 0xe8 */
157  	u64 avic_logical_id;	/* Offset 0xf0 */
158  	u64 avic_physical_id;	/* Offset 0xf8 */
159  	u8 reserved_7[8];
160  	u64 vmsa_pa;		/* Used for an SEV-ES guest */
161  	u8 reserved_8[720];
162  	/*
163  	 * Offset 0x3e0, 32 bytes reserved
164  	 * for use by hypervisor/software.
165  	 */
166  	union {
167  		struct hv_vmcb_enlightenments hv_enlightenments;
168  		u8 reserved_sw[32];
169  	};
170  };
171  
172  
173  #define TLB_CONTROL_DO_NOTHING 0
174  #define TLB_CONTROL_FLUSH_ALL_ASID 1
175  #define TLB_CONTROL_FLUSH_ASID 3
176  #define TLB_CONTROL_FLUSH_ASID_LOCAL 7
177  
178  #define V_TPR_MASK 0x0f
179  
180  #define V_IRQ_SHIFT 8
181  #define V_IRQ_MASK (1 << V_IRQ_SHIFT)
182  
183  #define V_GIF_SHIFT 9
184  #define V_GIF_MASK (1 << V_GIF_SHIFT)
185  
186  #define V_INTR_PRIO_SHIFT 16
187  #define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
188  
189  #define V_IGN_TPR_SHIFT 20
190  #define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
191  
192  #define V_IRQ_INJECTION_BITS_MASK (V_IRQ_MASK | V_INTR_PRIO_MASK | V_IGN_TPR_MASK)
193  
194  #define V_INTR_MASKING_SHIFT 24
195  #define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
196  
197  #define V_GIF_ENABLE_SHIFT 25
198  #define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
199  
200  #define AVIC_ENABLE_SHIFT 31
201  #define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
202  
203  #define X2APIC_MODE_SHIFT 30
204  #define X2APIC_MODE_MASK (1 << X2APIC_MODE_SHIFT)
205  
206  #define LBR_CTL_ENABLE_MASK BIT_ULL(0)
207  #define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
208  
209  #define SVM_INTERRUPT_SHADOW_MASK	BIT_ULL(0)
210  #define SVM_GUEST_INTERRUPT_MASK	BIT_ULL(1)
211  
212  #define SVM_IOIO_STR_SHIFT 2
213  #define SVM_IOIO_REP_SHIFT 3
214  #define SVM_IOIO_SIZE_SHIFT 4
215  #define SVM_IOIO_ASIZE_SHIFT 7
216  
217  #define SVM_IOIO_TYPE_MASK 1
218  #define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
219  #define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
220  #define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
221  #define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
222  
223  #define SVM_VM_CR_VALID_MASK	0x001fULL
224  #define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL
225  #define SVM_VM_CR_SVM_DIS_MASK  0x0010ULL
226  
227  #define SVM_NESTED_CTL_NP_ENABLE	BIT(0)
228  #define SVM_NESTED_CTL_SEV_ENABLE	BIT(1)
229  #define SVM_NESTED_CTL_SEV_ES_ENABLE	BIT(2)
230  
231  
232  #define SVM_TSC_RATIO_RSVD	0xffffff0000000000ULL
233  #define SVM_TSC_RATIO_MIN	0x0000000000000001ULL
234  #define SVM_TSC_RATIO_MAX	0x000000ffffffffffULL
235  #define SVM_TSC_RATIO_DEFAULT	0x0100000000ULL
236  
237  
238  /* AVIC */
239  #define AVIC_LOGICAL_ID_ENTRY_GUEST_PHYSICAL_ID_MASK	(0xFFULL)
240  #define AVIC_LOGICAL_ID_ENTRY_VALID_BIT			31
241  #define AVIC_LOGICAL_ID_ENTRY_VALID_MASK		(1 << 31)
242  
243  #define AVIC_PHYSICAL_ID_ENTRY_HOST_PHYSICAL_ID_MASK	GENMASK_ULL(11, 0)
244  #define AVIC_PHYSICAL_ID_ENTRY_BACKING_PAGE_MASK	(0xFFFFFFFFFFULL << 12)
245  #define AVIC_PHYSICAL_ID_ENTRY_IS_RUNNING_MASK		(1ULL << 62)
246  #define AVIC_PHYSICAL_ID_ENTRY_VALID_MASK		(1ULL << 63)
247  #define AVIC_PHYSICAL_ID_TABLE_SIZE_MASK		(0xFFULL)
248  
249  #define AVIC_DOORBELL_PHYSICAL_ID_MASK			GENMASK_ULL(11, 0)
250  
251  #define VMCB_AVIC_APIC_BAR_MASK				0xFFFFFFFFFF000ULL
252  
253  #define AVIC_UNACCEL_ACCESS_WRITE_MASK		1
254  #define AVIC_UNACCEL_ACCESS_OFFSET_MASK		0xFF0
255  #define AVIC_UNACCEL_ACCESS_VECTOR_MASK		0xFFFFFFFF
256  
257  enum avic_ipi_failure_cause {
258  	AVIC_IPI_FAILURE_INVALID_INT_TYPE,
259  	AVIC_IPI_FAILURE_TARGET_NOT_RUNNING,
260  	AVIC_IPI_FAILURE_INVALID_TARGET,
261  	AVIC_IPI_FAILURE_INVALID_BACKING_PAGE,
262  };
263  
264  #define AVIC_PHYSICAL_MAX_INDEX_MASK	GENMASK_ULL(9, 0)
265  
266  /*
267   * For AVIC, the max index allowed for physical APIC ID
268   * table is 0xff (255).
269   */
270  #define AVIC_MAX_PHYSICAL_ID		0XFEULL
271  
272  /*
273   * For x2AVIC, the max index allowed for physical APIC ID
274   * table is 0x1ff (511).
275   */
276  #define X2AVIC_MAX_PHYSICAL_ID		0x1FFUL
277  
278  #define AVIC_HPA_MASK	~((0xFFFULL << 52) | 0xFFF)
279  #define VMCB_AVIC_APIC_BAR_MASK		0xFFFFFFFFFF000ULL
280  
281  
282  struct vmcb_seg {
283  	u16 selector;
284  	u16 attrib;
285  	u32 limit;
286  	u64 base;
287  } __packed;
288  
289  /* Save area definition for legacy and SEV-MEM guests */
290  struct vmcb_save_area {
291  	struct vmcb_seg es;
292  	struct vmcb_seg cs;
293  	struct vmcb_seg ss;
294  	struct vmcb_seg ds;
295  	struct vmcb_seg fs;
296  	struct vmcb_seg gs;
297  	struct vmcb_seg gdtr;
298  	struct vmcb_seg ldtr;
299  	struct vmcb_seg idtr;
300  	struct vmcb_seg tr;
301  	/* Reserved fields are named following their struct offset */
302  	u8 reserved_0xa0[42];
303  	u8 vmpl;
304  	u8 cpl;
305  	u8 reserved_0xcc[4];
306  	u64 efer;
307  	u8 reserved_0xd8[112];
308  	u64 cr4;
309  	u64 cr3;
310  	u64 cr0;
311  	u64 dr7;
312  	u64 dr6;
313  	u64 rflags;
314  	u64 rip;
315  	u8 reserved_0x180[88];
316  	u64 rsp;
317  	u64 s_cet;
318  	u64 ssp;
319  	u64 isst_addr;
320  	u64 rax;
321  	u64 star;
322  	u64 lstar;
323  	u64 cstar;
324  	u64 sfmask;
325  	u64 kernel_gs_base;
326  	u64 sysenter_cs;
327  	u64 sysenter_esp;
328  	u64 sysenter_eip;
329  	u64 cr2;
330  	u8 reserved_0x248[32];
331  	u64 g_pat;
332  	u64 dbgctl;
333  	u64 br_from;
334  	u64 br_to;
335  	u64 last_excp_from;
336  	u64 last_excp_to;
337  	u8 reserved_0x298[72];
338  	u32 spec_ctrl;		/* Guest version of SPEC_CTRL at 0x2E0 */
339  } __packed;
340  
341  /* Save area definition for SEV-ES and SEV-SNP guests */
342  struct sev_es_save_area {
343  	struct vmcb_seg es;
344  	struct vmcb_seg cs;
345  	struct vmcb_seg ss;
346  	struct vmcb_seg ds;
347  	struct vmcb_seg fs;
348  	struct vmcb_seg gs;
349  	struct vmcb_seg gdtr;
350  	struct vmcb_seg ldtr;
351  	struct vmcb_seg idtr;
352  	struct vmcb_seg tr;
353  	u64 vmpl0_ssp;
354  	u64 vmpl1_ssp;
355  	u64 vmpl2_ssp;
356  	u64 vmpl3_ssp;
357  	u64 u_cet;
358  	u8 reserved_0xc8[2];
359  	u8 vmpl;
360  	u8 cpl;
361  	u8 reserved_0xcc[4];
362  	u64 efer;
363  	u8 reserved_0xd8[104];
364  	u64 xss;
365  	u64 cr4;
366  	u64 cr3;
367  	u64 cr0;
368  	u64 dr7;
369  	u64 dr6;
370  	u64 rflags;
371  	u64 rip;
372  	u64 dr0;
373  	u64 dr1;
374  	u64 dr2;
375  	u64 dr3;
376  	u64 dr0_addr_mask;
377  	u64 dr1_addr_mask;
378  	u64 dr2_addr_mask;
379  	u64 dr3_addr_mask;
380  	u8 reserved_0x1c0[24];
381  	u64 rsp;
382  	u64 s_cet;
383  	u64 ssp;
384  	u64 isst_addr;
385  	u64 rax;
386  	u64 star;
387  	u64 lstar;
388  	u64 cstar;
389  	u64 sfmask;
390  	u64 kernel_gs_base;
391  	u64 sysenter_cs;
392  	u64 sysenter_esp;
393  	u64 sysenter_eip;
394  	u64 cr2;
395  	u8 reserved_0x248[32];
396  	u64 g_pat;
397  	u64 dbgctl;
398  	u64 br_from;
399  	u64 br_to;
400  	u64 last_excp_from;
401  	u64 last_excp_to;
402  	u8 reserved_0x298[80];
403  	u32 pkru;
404  	u32 tsc_aux;
405  	u8 reserved_0x2f0[24];
406  	u64 rcx;
407  	u64 rdx;
408  	u64 rbx;
409  	u64 reserved_0x320;	/* rsp already available at 0x01d8 */
410  	u64 rbp;
411  	u64 rsi;
412  	u64 rdi;
413  	u64 r8;
414  	u64 r9;
415  	u64 r10;
416  	u64 r11;
417  	u64 r12;
418  	u64 r13;
419  	u64 r14;
420  	u64 r15;
421  	u8 reserved_0x380[16];
422  	u64 guest_exit_info_1;
423  	u64 guest_exit_info_2;
424  	u64 guest_exit_int_info;
425  	u64 guest_nrip;
426  	u64 sev_features;
427  	u64 vintr_ctrl;
428  	u64 guest_exit_code;
429  	u64 virtual_tom;
430  	u64 tlb_id;
431  	u64 pcpu_id;
432  	u64 event_inj;
433  	u64 xcr0;
434  	u8 reserved_0x3f0[16];
435  
436  	/* Floating point area */
437  	u64 x87_dp;
438  	u32 mxcsr;
439  	u16 x87_ftw;
440  	u16 x87_fsw;
441  	u16 x87_fcw;
442  	u16 x87_fop;
443  	u16 x87_ds;
444  	u16 x87_cs;
445  	u64 x87_rip;
446  	u8 fpreg_x87[80];
447  	u8 fpreg_xmm[256];
448  	u8 fpreg_ymm[256];
449  } __packed;
450  
451  struct ghcb_save_area {
452  	u8 reserved_0x0[203];
453  	u8 cpl;
454  	u8 reserved_0xcc[116];
455  	u64 xss;
456  	u8 reserved_0x148[24];
457  	u64 dr7;
458  	u8 reserved_0x168[16];
459  	u64 rip;
460  	u8 reserved_0x180[88];
461  	u64 rsp;
462  	u8 reserved_0x1e0[24];
463  	u64 rax;
464  	u8 reserved_0x200[264];
465  	u64 rcx;
466  	u64 rdx;
467  	u64 rbx;
468  	u8 reserved_0x320[8];
469  	u64 rbp;
470  	u64 rsi;
471  	u64 rdi;
472  	u64 r8;
473  	u64 r9;
474  	u64 r10;
475  	u64 r11;
476  	u64 r12;
477  	u64 r13;
478  	u64 r14;
479  	u64 r15;
480  	u8 reserved_0x380[16];
481  	u64 sw_exit_code;
482  	u64 sw_exit_info_1;
483  	u64 sw_exit_info_2;
484  	u64 sw_scratch;
485  	u8 reserved_0x3b0[56];
486  	u64 xcr0;
487  	u8 valid_bitmap[16];
488  	u64 x87_state_gpa;
489  } __packed;
490  
491  #define GHCB_SHARED_BUF_SIZE	2032
492  
493  struct ghcb {
494  	struct ghcb_save_area save;
495  	u8 reserved_save[2048 - sizeof(struct ghcb_save_area)];
496  
497  	u8 shared_buffer[GHCB_SHARED_BUF_SIZE];
498  
499  	u8 reserved_0xff0[10];
500  	u16 protocol_version;	/* negotiated SEV-ES/GHCB protocol version */
501  	u32 ghcb_usage;
502  } __packed;
503  
504  
505  #define EXPECTED_VMCB_SAVE_AREA_SIZE		740
506  #define EXPECTED_GHCB_SAVE_AREA_SIZE		1032
507  #define EXPECTED_SEV_ES_SAVE_AREA_SIZE		1648
508  #define EXPECTED_VMCB_CONTROL_AREA_SIZE		1024
509  #define EXPECTED_GHCB_SIZE			PAGE_SIZE
510  
511  #define BUILD_BUG_RESERVED_OFFSET(x, y) \
512  	ASSERT_STRUCT_OFFSET(struct x, reserved ## _ ## y, y)
513  
__unused_size_checks(void)514  static inline void __unused_size_checks(void)
515  {
516  	BUILD_BUG_ON(sizeof(struct vmcb_save_area)	!= EXPECTED_VMCB_SAVE_AREA_SIZE);
517  	BUILD_BUG_ON(sizeof(struct ghcb_save_area)	!= EXPECTED_GHCB_SAVE_AREA_SIZE);
518  	BUILD_BUG_ON(sizeof(struct sev_es_save_area)	!= EXPECTED_SEV_ES_SAVE_AREA_SIZE);
519  	BUILD_BUG_ON(sizeof(struct vmcb_control_area)	!= EXPECTED_VMCB_CONTROL_AREA_SIZE);
520  	BUILD_BUG_ON(sizeof(struct ghcb)		!= EXPECTED_GHCB_SIZE);
521  
522  	/* Check offsets of reserved fields */
523  
524  	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xa0);
525  	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xcc);
526  	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0xd8);
527  	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x180);
528  	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x248);
529  	BUILD_BUG_RESERVED_OFFSET(vmcb_save_area, 0x298);
530  
531  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xc8);
532  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xcc);
533  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0xd8);
534  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x1c0);
535  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x248);
536  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x298);
537  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x2f0);
538  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x320);
539  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x380);
540  	BUILD_BUG_RESERVED_OFFSET(sev_es_save_area, 0x3f0);
541  
542  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x0);
543  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0xcc);
544  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x148);
545  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x168);
546  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x180);
547  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x1e0);
548  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x200);
549  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x320);
550  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x380);
551  	BUILD_BUG_RESERVED_OFFSET(ghcb_save_area, 0x3b0);
552  
553  	BUILD_BUG_RESERVED_OFFSET(ghcb, 0xff0);
554  }
555  
556  struct vmcb {
557  	struct vmcb_control_area control;
558  	struct vmcb_save_area save;
559  } __packed;
560  
561  #define SVM_CPUID_FUNC 0x8000000a
562  
563  #define SVM_VM_CR_SVM_DISABLE 4
564  
565  #define SVM_SELECTOR_S_SHIFT 4
566  #define SVM_SELECTOR_DPL_SHIFT 5
567  #define SVM_SELECTOR_P_SHIFT 7
568  #define SVM_SELECTOR_AVL_SHIFT 8
569  #define SVM_SELECTOR_L_SHIFT 9
570  #define SVM_SELECTOR_DB_SHIFT 10
571  #define SVM_SELECTOR_G_SHIFT 11
572  
573  #define SVM_SELECTOR_TYPE_MASK (0xf)
574  #define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
575  #define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
576  #define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
577  #define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
578  #define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
579  #define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
580  #define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
581  
582  #define SVM_SELECTOR_WRITE_MASK (1 << 1)
583  #define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
584  #define SVM_SELECTOR_CODE_MASK (1 << 3)
585  
586  #define SVM_EVTINJ_VEC_MASK 0xff
587  
588  #define SVM_EVTINJ_TYPE_SHIFT 8
589  #define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
590  
591  #define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
592  #define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
593  #define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
594  #define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
595  
596  #define SVM_EVTINJ_VALID (1 << 31)
597  #define SVM_EVTINJ_VALID_ERR (1 << 11)
598  
599  #define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
600  #define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
601  
602  #define	SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
603  #define	SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
604  #define	SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
605  #define	SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
606  
607  #define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
608  #define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
609  
610  #define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
611  #define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
612  #define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
613  
614  #define SVM_EXITINFO_REG_MASK 0x0F
615  
616  #define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
617  
618  /* GHCB Accessor functions */
619  
620  #define GHCB_BITMAP_IDX(field)							\
621  	(offsetof(struct ghcb_save_area, field) / sizeof(u64))
622  
623  #define DEFINE_GHCB_ACCESSORS(field)						\
624  	static __always_inline bool ghcb_##field##_is_valid(const struct ghcb *ghcb) \
625  	{									\
626  		return test_bit(GHCB_BITMAP_IDX(field),				\
627  				(unsigned long *)&ghcb->save.valid_bitmap);	\
628  	}									\
629  										\
630  	static __always_inline u64 ghcb_get_##field(struct ghcb *ghcb)		\
631  	{									\
632  		return ghcb->save.field;					\
633  	}									\
634  										\
635  	static __always_inline u64 ghcb_get_##field##_if_valid(struct ghcb *ghcb) \
636  	{									\
637  		return ghcb_##field##_is_valid(ghcb) ? ghcb->save.field : 0;	\
638  	}									\
639  										\
640  	static __always_inline void ghcb_set_##field(struct ghcb *ghcb, u64 value) \
641  	{									\
642  		__set_bit(GHCB_BITMAP_IDX(field),				\
643  			  (unsigned long *)&ghcb->save.valid_bitmap);		\
644  		ghcb->save.field = value;					\
645  	}
646  
647  DEFINE_GHCB_ACCESSORS(cpl)
648  DEFINE_GHCB_ACCESSORS(rip)
649  DEFINE_GHCB_ACCESSORS(rsp)
650  DEFINE_GHCB_ACCESSORS(rax)
651  DEFINE_GHCB_ACCESSORS(rcx)
652  DEFINE_GHCB_ACCESSORS(rdx)
653  DEFINE_GHCB_ACCESSORS(rbx)
654  DEFINE_GHCB_ACCESSORS(rbp)
655  DEFINE_GHCB_ACCESSORS(rsi)
656  DEFINE_GHCB_ACCESSORS(rdi)
657  DEFINE_GHCB_ACCESSORS(r8)
658  DEFINE_GHCB_ACCESSORS(r9)
659  DEFINE_GHCB_ACCESSORS(r10)
660  DEFINE_GHCB_ACCESSORS(r11)
661  DEFINE_GHCB_ACCESSORS(r12)
662  DEFINE_GHCB_ACCESSORS(r13)
663  DEFINE_GHCB_ACCESSORS(r14)
664  DEFINE_GHCB_ACCESSORS(r15)
665  DEFINE_GHCB_ACCESSORS(sw_exit_code)
666  DEFINE_GHCB_ACCESSORS(sw_exit_info_1)
667  DEFINE_GHCB_ACCESSORS(sw_exit_info_2)
668  DEFINE_GHCB_ACCESSORS(sw_scratch)
669  DEFINE_GHCB_ACCESSORS(xcr0)
670  
671  #endif
672