xref: /linux/arch/x86/include/asm/svm.h (revision e3b9f1e81de2083f359bacd2a94bf1c024f2ede0) 
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __SVM_H
3 #define __SVM_H
4 
5 #include <uapi/asm/svm.h>
6 
7 
8 enum {
9 	INTERCEPT_INTR,
10 	INTERCEPT_NMI,
11 	INTERCEPT_SMI,
12 	INTERCEPT_INIT,
13 	INTERCEPT_VINTR,
14 	INTERCEPT_SELECTIVE_CR0,
15 	INTERCEPT_STORE_IDTR,
16 	INTERCEPT_STORE_GDTR,
17 	INTERCEPT_STORE_LDTR,
18 	INTERCEPT_STORE_TR,
19 	INTERCEPT_LOAD_IDTR,
20 	INTERCEPT_LOAD_GDTR,
21 	INTERCEPT_LOAD_LDTR,
22 	INTERCEPT_LOAD_TR,
23 	INTERCEPT_RDTSC,
24 	INTERCEPT_RDPMC,
25 	INTERCEPT_PUSHF,
26 	INTERCEPT_POPF,
27 	INTERCEPT_CPUID,
28 	INTERCEPT_RSM,
29 	INTERCEPT_IRET,
30 	INTERCEPT_INTn,
31 	INTERCEPT_INVD,
32 	INTERCEPT_PAUSE,
33 	INTERCEPT_HLT,
34 	INTERCEPT_INVLPG,
35 	INTERCEPT_INVLPGA,
36 	INTERCEPT_IOIO_PROT,
37 	INTERCEPT_MSR_PROT,
38 	INTERCEPT_TASK_SWITCH,
39 	INTERCEPT_FERR_FREEZE,
40 	INTERCEPT_SHUTDOWN,
41 	INTERCEPT_VMRUN,
42 	INTERCEPT_VMMCALL,
43 	INTERCEPT_VMLOAD,
44 	INTERCEPT_VMSAVE,
45 	INTERCEPT_STGI,
46 	INTERCEPT_CLGI,
47 	INTERCEPT_SKINIT,
48 	INTERCEPT_RDTSCP,
49 	INTERCEPT_ICEBP,
50 	INTERCEPT_WBINVD,
51 	INTERCEPT_MONITOR,
52 	INTERCEPT_MWAIT,
53 	INTERCEPT_MWAIT_COND,
54 	INTERCEPT_XSETBV,
55 };
56 
57 
58 struct __attribute__ ((__packed__)) vmcb_control_area {
59 	u32 intercept_cr;
60 	u32 intercept_dr;
61 	u32 intercept_exceptions;
62 	u64 intercept;
63 	u8 reserved_1[42];
64 	u16 pause_filter_count;
65 	u64 iopm_base_pa;
66 	u64 msrpm_base_pa;
67 	u64 tsc_offset;
68 	u32 asid;
69 	u8 tlb_ctl;
70 	u8 reserved_2[3];
71 	u32 int_ctl;
72 	u32 int_vector;
73 	u32 int_state;
74 	u8 reserved_3[4];
75 	u32 exit_code;
76 	u32 exit_code_hi;
77 	u64 exit_info_1;
78 	u64 exit_info_2;
79 	u32 exit_int_info;
80 	u32 exit_int_info_err;
81 	u64 nested_ctl;
82 	u64 avic_vapic_bar;
83 	u8 reserved_4[8];
84 	u32 event_inj;
85 	u32 event_inj_err;
86 	u64 nested_cr3;
87 	u64 virt_ext;
88 	u32 clean;
89 	u32 reserved_5;
90 	u64 next_rip;
91 	u8 insn_len;
92 	u8 insn_bytes[15];
93 	u64 avic_backing_page;	/* Offset 0xe0 */
94 	u8 reserved_6[8];	/* Offset 0xe8 */
95 	u64 avic_logical_id;	/* Offset 0xf0 */
96 	u64 avic_physical_id;	/* Offset 0xf8 */
97 	u8 reserved_7[768];
98 };
99 
100 
101 #define TLB_CONTROL_DO_NOTHING 0
102 #define TLB_CONTROL_FLUSH_ALL_ASID 1
103 #define TLB_CONTROL_FLUSH_ASID 3
104 #define TLB_CONTROL_FLUSH_ASID_LOCAL 7
105 
106 #define V_TPR_MASK 0x0f
107 
108 #define V_IRQ_SHIFT 8
109 #define V_IRQ_MASK (1 << V_IRQ_SHIFT)
110 
111 #define V_GIF_SHIFT 9
112 #define V_GIF_MASK (1 << V_GIF_SHIFT)
113 
114 #define V_INTR_PRIO_SHIFT 16
115 #define V_INTR_PRIO_MASK (0x0f << V_INTR_PRIO_SHIFT)
116 
117 #define V_IGN_TPR_SHIFT 20
118 #define V_IGN_TPR_MASK (1 << V_IGN_TPR_SHIFT)
119 
120 #define V_INTR_MASKING_SHIFT 24
121 #define V_INTR_MASKING_MASK (1 << V_INTR_MASKING_SHIFT)
122 
123 #define V_GIF_ENABLE_SHIFT 25
124 #define V_GIF_ENABLE_MASK (1 << V_GIF_ENABLE_SHIFT)
125 
126 #define AVIC_ENABLE_SHIFT 31
127 #define AVIC_ENABLE_MASK (1 << AVIC_ENABLE_SHIFT)
128 
129 #define LBR_CTL_ENABLE_MASK BIT_ULL(0)
130 #define VIRTUAL_VMLOAD_VMSAVE_ENABLE_MASK BIT_ULL(1)
131 
132 #define SVM_INTERRUPT_SHADOW_MASK 1
133 
134 #define SVM_IOIO_STR_SHIFT 2
135 #define SVM_IOIO_REP_SHIFT 3
136 #define SVM_IOIO_SIZE_SHIFT 4
137 #define SVM_IOIO_ASIZE_SHIFT 7
138 
139 #define SVM_IOIO_TYPE_MASK 1
140 #define SVM_IOIO_STR_MASK (1 << SVM_IOIO_STR_SHIFT)
141 #define SVM_IOIO_REP_MASK (1 << SVM_IOIO_REP_SHIFT)
142 #define SVM_IOIO_SIZE_MASK (7 << SVM_IOIO_SIZE_SHIFT)
143 #define SVM_IOIO_ASIZE_MASK (7 << SVM_IOIO_ASIZE_SHIFT)
144 
145 #define SVM_VM_CR_VALID_MASK	0x001fULL
146 #define SVM_VM_CR_SVM_LOCK_MASK 0x0008ULL
147 #define SVM_VM_CR_SVM_DIS_MASK  0x0010ULL
148 
149 #define SVM_NESTED_CTL_NP_ENABLE	BIT(0)
150 #define SVM_NESTED_CTL_SEV_ENABLE	BIT(1)
151 
152 struct __attribute__ ((__packed__)) vmcb_seg {
153 	u16 selector;
154 	u16 attrib;
155 	u32 limit;
156 	u64 base;
157 };
158 
159 struct __attribute__ ((__packed__)) vmcb_save_area {
160 	struct vmcb_seg es;
161 	struct vmcb_seg cs;
162 	struct vmcb_seg ss;
163 	struct vmcb_seg ds;
164 	struct vmcb_seg fs;
165 	struct vmcb_seg gs;
166 	struct vmcb_seg gdtr;
167 	struct vmcb_seg ldtr;
168 	struct vmcb_seg idtr;
169 	struct vmcb_seg tr;
170 	u8 reserved_1[43];
171 	u8 cpl;
172 	u8 reserved_2[4];
173 	u64 efer;
174 	u8 reserved_3[112];
175 	u64 cr4;
176 	u64 cr3;
177 	u64 cr0;
178 	u64 dr7;
179 	u64 dr6;
180 	u64 rflags;
181 	u64 rip;
182 	u8 reserved_4[88];
183 	u64 rsp;
184 	u8 reserved_5[24];
185 	u64 rax;
186 	u64 star;
187 	u64 lstar;
188 	u64 cstar;
189 	u64 sfmask;
190 	u64 kernel_gs_base;
191 	u64 sysenter_cs;
192 	u64 sysenter_esp;
193 	u64 sysenter_eip;
194 	u64 cr2;
195 	u8 reserved_6[32];
196 	u64 g_pat;
197 	u64 dbgctl;
198 	u64 br_from;
199 	u64 br_to;
200 	u64 last_excp_from;
201 	u64 last_excp_to;
202 };
203 
204 struct __attribute__ ((__packed__)) vmcb {
205 	struct vmcb_control_area control;
206 	struct vmcb_save_area save;
207 };
208 
209 #define SVM_CPUID_FUNC 0x8000000a
210 
211 #define SVM_VM_CR_SVM_DISABLE 4
212 
213 #define SVM_SELECTOR_S_SHIFT 4
214 #define SVM_SELECTOR_DPL_SHIFT 5
215 #define SVM_SELECTOR_P_SHIFT 7
216 #define SVM_SELECTOR_AVL_SHIFT 8
217 #define SVM_SELECTOR_L_SHIFT 9
218 #define SVM_SELECTOR_DB_SHIFT 10
219 #define SVM_SELECTOR_G_SHIFT 11
220 
221 #define SVM_SELECTOR_TYPE_MASK (0xf)
222 #define SVM_SELECTOR_S_MASK (1 << SVM_SELECTOR_S_SHIFT)
223 #define SVM_SELECTOR_DPL_MASK (3 << SVM_SELECTOR_DPL_SHIFT)
224 #define SVM_SELECTOR_P_MASK (1 << SVM_SELECTOR_P_SHIFT)
225 #define SVM_SELECTOR_AVL_MASK (1 << SVM_SELECTOR_AVL_SHIFT)
226 #define SVM_SELECTOR_L_MASK (1 << SVM_SELECTOR_L_SHIFT)
227 #define SVM_SELECTOR_DB_MASK (1 << SVM_SELECTOR_DB_SHIFT)
228 #define SVM_SELECTOR_G_MASK (1 << SVM_SELECTOR_G_SHIFT)
229 
230 #define SVM_SELECTOR_WRITE_MASK (1 << 1)
231 #define SVM_SELECTOR_READ_MASK SVM_SELECTOR_WRITE_MASK
232 #define SVM_SELECTOR_CODE_MASK (1 << 3)
233 
234 #define INTERCEPT_CR0_READ	0
235 #define INTERCEPT_CR3_READ	3
236 #define INTERCEPT_CR4_READ	4
237 #define INTERCEPT_CR8_READ	8
238 #define INTERCEPT_CR0_WRITE	(16 + 0)
239 #define INTERCEPT_CR3_WRITE	(16 + 3)
240 #define INTERCEPT_CR4_WRITE	(16 + 4)
241 #define INTERCEPT_CR8_WRITE	(16 + 8)
242 
243 #define INTERCEPT_DR0_READ	0
244 #define INTERCEPT_DR1_READ	1
245 #define INTERCEPT_DR2_READ	2
246 #define INTERCEPT_DR3_READ	3
247 #define INTERCEPT_DR4_READ	4
248 #define INTERCEPT_DR5_READ	5
249 #define INTERCEPT_DR6_READ	6
250 #define INTERCEPT_DR7_READ	7
251 #define INTERCEPT_DR0_WRITE	(16 + 0)
252 #define INTERCEPT_DR1_WRITE	(16 + 1)
253 #define INTERCEPT_DR2_WRITE	(16 + 2)
254 #define INTERCEPT_DR3_WRITE	(16 + 3)
255 #define INTERCEPT_DR4_WRITE	(16 + 4)
256 #define INTERCEPT_DR5_WRITE	(16 + 5)
257 #define INTERCEPT_DR6_WRITE	(16 + 6)
258 #define INTERCEPT_DR7_WRITE	(16 + 7)
259 
260 #define SVM_EVTINJ_VEC_MASK 0xff
261 
262 #define SVM_EVTINJ_TYPE_SHIFT 8
263 #define SVM_EVTINJ_TYPE_MASK (7 << SVM_EVTINJ_TYPE_SHIFT)
264 
265 #define SVM_EVTINJ_TYPE_INTR (0 << SVM_EVTINJ_TYPE_SHIFT)
266 #define SVM_EVTINJ_TYPE_NMI (2 << SVM_EVTINJ_TYPE_SHIFT)
267 #define SVM_EVTINJ_TYPE_EXEPT (3 << SVM_EVTINJ_TYPE_SHIFT)
268 #define SVM_EVTINJ_TYPE_SOFT (4 << SVM_EVTINJ_TYPE_SHIFT)
269 
270 #define SVM_EVTINJ_VALID (1 << 31)
271 #define SVM_EVTINJ_VALID_ERR (1 << 11)
272 
273 #define SVM_EXITINTINFO_VEC_MASK SVM_EVTINJ_VEC_MASK
274 #define SVM_EXITINTINFO_TYPE_MASK SVM_EVTINJ_TYPE_MASK
275 
276 #define	SVM_EXITINTINFO_TYPE_INTR SVM_EVTINJ_TYPE_INTR
277 #define	SVM_EXITINTINFO_TYPE_NMI SVM_EVTINJ_TYPE_NMI
278 #define	SVM_EXITINTINFO_TYPE_EXEPT SVM_EVTINJ_TYPE_EXEPT
279 #define	SVM_EXITINTINFO_TYPE_SOFT SVM_EVTINJ_TYPE_SOFT
280 
281 #define SVM_EXITINTINFO_VALID SVM_EVTINJ_VALID
282 #define SVM_EXITINTINFO_VALID_ERR SVM_EVTINJ_VALID_ERR
283 
284 #define SVM_EXITINFOSHIFT_TS_REASON_IRET 36
285 #define SVM_EXITINFOSHIFT_TS_REASON_JMP 38
286 #define SVM_EXITINFOSHIFT_TS_HAS_ERROR_CODE 44
287 
288 #define SVM_EXITINFO_REG_MASK 0x0F
289 
290 #define SVM_CR0_SELECTIVE_MASK (X86_CR0_TS | X86_CR0_MP)
291 
292 #define SVM_VMLOAD ".byte 0x0f, 0x01, 0xda"
293 #define SVM_VMRUN  ".byte 0x0f, 0x01, 0xd8"
294 #define SVM_VMSAVE ".byte 0x0f, 0x01, 0xdb"
295 #define SVM_CLGI   ".byte 0x0f, 0x01, 0xdd"
296 #define SVM_STGI   ".byte 0x0f, 0x01, 0xdc"
297 #define SVM_INVLPGA ".byte 0x0f, 0x01, 0xdf"
298 
299 #endif
300