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749cf76c CD |
1 | /* |
2 | * Copyright (C) 2012 - Virtual Open Systems and Columbia University | |
3 | * Author: Christoffer Dall <c.dall@virtualopensystems.com> | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License, version 2, as | |
7 | * published by the Free Software Foundation. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. | |
17 | */ | |
18 | ||
19 | #ifndef __ARM_KVM_ARM_H__ | |
20 | #define __ARM_KVM_ARM_H__ | |
21 | ||
8420dcd3 | 22 | #include <linux/const.h> |
749cf76c CD |
23 | #include <linux/types.h> |
24 | ||
342cd0ab CD |
25 | /* Hyp Configuration Register (HCR) bits */ |
26 | #define HCR_TGE (1 << 27) | |
27 | #define HCR_TVM (1 << 26) | |
28 | #define HCR_TTLB (1 << 25) | |
29 | #define HCR_TPU (1 << 24) | |
30 | #define HCR_TPC (1 << 23) | |
31 | #define HCR_TSW (1 << 22) | |
32 | #define HCR_TAC (1 << 21) | |
33 | #define HCR_TIDCP (1 << 20) | |
34 | #define HCR_TSC (1 << 19) | |
35 | #define HCR_TID3 (1 << 18) | |
36 | #define HCR_TID2 (1 << 17) | |
37 | #define HCR_TID1 (1 << 16) | |
38 | #define HCR_TID0 (1 << 15) | |
39 | #define HCR_TWE (1 << 14) | |
40 | #define HCR_TWI (1 << 13) | |
41 | #define HCR_DC (1 << 12) | |
42 | #define HCR_BSU (3 << 10) | |
43 | #define HCR_BSU_IS (1 << 10) | |
44 | #define HCR_FB (1 << 9) | |
45 | #define HCR_VA (1 << 8) | |
46 | #define HCR_VI (1 << 7) | |
47 | #define HCR_VF (1 << 6) | |
48 | #define HCR_AMO (1 << 5) | |
49 | #define HCR_IMO (1 << 4) | |
50 | #define HCR_FMO (1 << 3) | |
51 | #define HCR_PTW (1 << 2) | |
52 | #define HCR_SWIO (1 << 1) | |
53 | #define HCR_VM 1 | |
54 | ||
55 | /* | |
56 | * The bits we set in HCR: | |
57 | * TAC: Trap ACTLR | |
58 | * TSC: Trap SMC | |
8034699a | 59 | * TVM: Trap VM ops (until MMU and caches are on) |
342cd0ab CD |
60 | * TSW: Trap cache operations by set/way |
61 | * TWI: Trap WFI | |
86ed81aa | 62 | * TWE: Trap WFE |
342cd0ab CD |
63 | * TIDCP: Trap L2CTLR/L2ECTLR |
64 | * BSU_IS: Upgrade barriers to the inner shareable domain | |
65 | * FB: Force broadcast of all maintainance operations | |
66 | * AMO: Override CPSR.A and enable signaling with VA | |
67 | * IMO: Override CPSR.I and enable signaling with VI | |
68 | * FMO: Override CPSR.F and enable signaling with VF | |
69 | * SWIO: Turn set/way invalidates into set/way clean+invalidate | |
70 | */ | |
71 | #define HCR_GUEST_MASK (HCR_TSC | HCR_TSW | HCR_TWI | HCR_VM | HCR_BSU_IS | \ | |
72 | HCR_FB | HCR_TAC | HCR_AMO | HCR_IMO | HCR_FMO | \ | |
8034699a | 73 | HCR_TVM | HCR_TWE | HCR_SWIO | HCR_TIDCP) |
342cd0ab | 74 | |
5b3e5e5b CD |
75 | /* System Control Register (SCTLR) bits */ |
76 | #define SCTLR_TE (1 << 30) | |
77 | #define SCTLR_EE (1 << 25) | |
78 | #define SCTLR_V (1 << 13) | |
79 | ||
342cd0ab CD |
80 | /* Hyp System Control Register (HSCTLR) bits */ |
81 | #define HSCTLR_TE (1 << 30) | |
82 | #define HSCTLR_EE (1 << 25) | |
83 | #define HSCTLR_FI (1 << 21) | |
84 | #define HSCTLR_WXN (1 << 19) | |
85 | #define HSCTLR_I (1 << 12) | |
86 | #define HSCTLR_C (1 << 2) | |
87 | #define HSCTLR_A (1 << 1) | |
88 | #define HSCTLR_M 1 | |
89 | #define HSCTLR_MASK (HSCTLR_M | HSCTLR_A | HSCTLR_C | HSCTLR_I | \ | |
90 | HSCTLR_WXN | HSCTLR_FI | HSCTLR_EE | HSCTLR_TE) | |
91 | ||
92 | /* TTBCR and HTCR Registers bits */ | |
93 | #define TTBCR_EAE (1 << 31) | |
94 | #define TTBCR_IMP (1 << 30) | |
95 | #define TTBCR_SH1 (3 << 28) | |
96 | #define TTBCR_ORGN1 (3 << 26) | |
97 | #define TTBCR_IRGN1 (3 << 24) | |
98 | #define TTBCR_EPD1 (1 << 23) | |
99 | #define TTBCR_A1 (1 << 22) | |
5e497046 | 100 | #define TTBCR_T1SZ (7 << 16) |
342cd0ab CD |
101 | #define TTBCR_SH0 (3 << 12) |
102 | #define TTBCR_ORGN0 (3 << 10) | |
103 | #define TTBCR_IRGN0 (3 << 8) | |
104 | #define TTBCR_EPD0 (1 << 7) | |
5e497046 | 105 | #define TTBCR_T0SZ (7 << 0) |
342cd0ab CD |
106 | #define HTCR_MASK (TTBCR_T0SZ | TTBCR_IRGN0 | TTBCR_ORGN0 | TTBCR_SH0) |
107 | ||
f7ed45be CD |
108 | /* Hyp System Trap Register */ |
109 | #define HSTR_T(x) (1 << x) | |
110 | #define HSTR_TTEE (1 << 16) | |
111 | #define HSTR_TJDBX (1 << 17) | |
112 | ||
113 | /* Hyp Coprocessor Trap Register */ | |
114 | #define HCPTR_TCP(x) (1 << x) | |
115 | #define HCPTR_TCP_MASK (0x3fff) | |
116 | #define HCPTR_TASE (1 << 15) | |
117 | #define HCPTR_TTA (1 << 20) | |
118 | #define HCPTR_TCPAC (1 << 31) | |
119 | ||
342cd0ab CD |
120 | /* Hyp Debug Configuration Register bits */ |
121 | #define HDCR_TDRA (1 << 11) | |
122 | #define HDCR_TDOSA (1 << 10) | |
123 | #define HDCR_TDA (1 << 9) | |
124 | #define HDCR_TDE (1 << 8) | |
125 | #define HDCR_HPME (1 << 7) | |
126 | #define HDCR_TPM (1 << 6) | |
127 | #define HDCR_TPMCR (1 << 5) | |
128 | #define HDCR_HPMN_MASK (0x1F) | |
129 | ||
130 | /* | |
131 | * The architecture supports 40-bit IPA as input to the 2nd stage translations | |
132 | * and PTRS_PER_S2_PGD becomes 1024, because each entry covers 1GB of address | |
133 | * space. | |
134 | */ | |
135 | #define KVM_PHYS_SHIFT (40) | |
8420dcd3 VM |
136 | #define KVM_PHYS_SIZE (_AC(1, ULL) << KVM_PHYS_SHIFT) |
137 | #define KVM_PHYS_MASK (KVM_PHYS_SIZE - _AC(1, ULL)) | |
138 | #define PTRS_PER_S2_PGD (_AC(1, ULL) << (KVM_PHYS_SHIFT - 30)) | |
342cd0ab CD |
139 | |
140 | /* Virtualization Translation Control Register (VTCR) bits */ | |
141 | #define VTCR_SH0 (3 << 12) | |
142 | #define VTCR_ORGN0 (3 << 10) | |
143 | #define VTCR_IRGN0 (3 << 8) | |
144 | #define VTCR_SL0 (3 << 6) | |
145 | #define VTCR_S (1 << 4) | |
146 | #define VTCR_T0SZ (0xf) | |
147 | #define VTCR_MASK (VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0 | VTCR_SL0 | \ | |
148 | VTCR_S | VTCR_T0SZ) | |
149 | #define VTCR_HTCR_SH (VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0) | |
150 | #define VTCR_SL_L2 (0 << 6) /* Starting-level: 2 */ | |
151 | #define VTCR_SL_L1 (1 << 6) /* Starting-level: 1 */ | |
152 | #define KVM_VTCR_SL0 VTCR_SL_L1 | |
153 | /* stage-2 input address range defined as 2^(32-T0SZ) */ | |
154 | #define KVM_T0SZ (32 - KVM_PHYS_SHIFT) | |
155 | #define KVM_VTCR_T0SZ (KVM_T0SZ & VTCR_T0SZ) | |
156 | #define KVM_VTCR_S ((KVM_VTCR_T0SZ << 1) & VTCR_S) | |
157 | ||
158 | /* Virtualization Translation Table Base Register (VTTBR) bits */ | |
159 | #if KVM_VTCR_SL0 == VTCR_SL_L2 /* see ARM DDI 0406C: B4-1720 */ | |
160 | #define VTTBR_X (14 - KVM_T0SZ) | |
161 | #else | |
162 | #define VTTBR_X (5 - KVM_T0SZ) | |
163 | #endif | |
f7ed45be | 164 | #define VTTBR_BADDR_SHIFT (VTTBR_X - 1) |
8420dcd3 VM |
165 | #define VTTBR_BADDR_MASK (((_AC(1, ULL) << (40 - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT) |
166 | #define VTTBR_VMID_SHIFT _AC(48, ULL) | |
20475f78 | 167 | #define VTTBR_VMID_MASK(size) (_AT(u64, (1 << size) - 1) << VTTBR_VMID_SHIFT) |
f7ed45be CD |
168 | |
169 | /* Hyp Syndrome Register (HSR) bits */ | |
170 | #define HSR_EC_SHIFT (26) | |
8420dcd3 VM |
171 | #define HSR_EC (_AC(0x3f, UL) << HSR_EC_SHIFT) |
172 | #define HSR_IL (_AC(1, UL) << 25) | |
f7ed45be CD |
173 | #define HSR_ISS (HSR_IL - 1) |
174 | #define HSR_ISV_SHIFT (24) | |
8420dcd3 | 175 | #define HSR_ISV (_AC(1, UL) << HSR_ISV_SHIFT) |
45e96ea6 CD |
176 | #define HSR_SRT_SHIFT (16) |
177 | #define HSR_SRT_MASK (0xf << HSR_SRT_SHIFT) | |
f7ed45be CD |
178 | #define HSR_FSC (0x3f) |
179 | #define HSR_FSC_TYPE (0x3c) | |
45e96ea6 | 180 | #define HSR_SSE (1 << 21) |
f7ed45be | 181 | #define HSR_WNR (1 << 6) |
5b3e5e5b | 182 | #define HSR_CV_SHIFT (24) |
8420dcd3 | 183 | #define HSR_CV (_AC(1, UL) << HSR_CV_SHIFT) |
5b3e5e5b | 184 | #define HSR_COND_SHIFT (20) |
8420dcd3 | 185 | #define HSR_COND (_AC(0xf, UL) << HSR_COND_SHIFT) |
f7ed45be CD |
186 | |
187 | #define FSC_FAULT (0x04) | |
35307b9a | 188 | #define FSC_ACCESS (0x08) |
f7ed45be | 189 | #define FSC_PERM (0x0c) |
621f48e4 TB |
190 | #define FSC_SEA (0x10) |
191 | #define FSC_SEA_TTW0 (0x14) | |
192 | #define FSC_SEA_TTW1 (0x15) | |
193 | #define FSC_SEA_TTW2 (0x16) | |
194 | #define FSC_SEA_TTW3 (0x17) | |
195 | #define FSC_SECC (0x18) | |
196 | #define FSC_SECC_TTW0 (0x1c) | |
197 | #define FSC_SECC_TTW1 (0x1d) | |
198 | #define FSC_SECC_TTW2 (0x1e) | |
199 | #define FSC_SECC_TTW3 (0x1f) | |
f7ed45be CD |
200 | |
201 | /* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */ | |
202 | #define HPFAR_MASK (~0xf) | |
342cd0ab | 203 | |
f7ed45be CD |
204 | #define HSR_EC_UNKNOWN (0x00) |
205 | #define HSR_EC_WFI (0x01) | |
206 | #define HSR_EC_CP15_32 (0x03) | |
207 | #define HSR_EC_CP15_64 (0x04) | |
208 | #define HSR_EC_CP14_MR (0x05) | |
209 | #define HSR_EC_CP14_LS (0x06) | |
210 | #define HSR_EC_CP_0_13 (0x07) | |
211 | #define HSR_EC_CP10_ID (0x08) | |
212 | #define HSR_EC_JAZELLE (0x09) | |
213 | #define HSR_EC_BXJ (0x0A) | |
214 | #define HSR_EC_CP14_64 (0x0C) | |
215 | #define HSR_EC_SVC_HYP (0x11) | |
216 | #define HSR_EC_HVC (0x12) | |
217 | #define HSR_EC_SMC (0x13) | |
218 | #define HSR_EC_IABT (0x20) | |
219 | #define HSR_EC_IABT_HYP (0x21) | |
220 | #define HSR_EC_DABT (0x24) | |
221 | #define HSR_EC_DABT_HYP (0x25) | |
f050fe7a | 222 | #define HSR_EC_MAX (0x3f) |
342cd0ab | 223 | |
8420dcd3 | 224 | #define HSR_WFI_IS_WFE (_AC(1, UL) << 0) |
58d5ec8f | 225 | |
8420dcd3 | 226 | #define HSR_HVC_IMM_MASK ((_AC(1, UL) << 16) - 1) |
5b3e5e5b | 227 | |
8420dcd3 VM |
228 | #define HSR_DABT_S1PTW (_AC(1, UL) << 7) |
229 | #define HSR_DABT_CM (_AC(1, UL) << 8) | |
230 | #define HSR_DABT_EA (_AC(1, UL) << 9) | |
78abfcde | 231 | |
b5905dc1 CD |
232 | #define kvm_arm_exception_type \ |
233 | {0, "RESET" }, \ | |
234 | {1, "UNDEFINED" }, \ | |
235 | {2, "SOFTWARE" }, \ | |
236 | {3, "PREF_ABORT" }, \ | |
237 | {4, "DATA_ABORT" }, \ | |
238 | {5, "IRQ" }, \ | |
239 | {6, "FIQ" }, \ | |
240 | {7, "HVC" } | |
241 | ||
242 | #define HSRECN(x) { HSR_EC_##x, #x } | |
243 | ||
244 | #define kvm_arm_exception_class \ | |
245 | HSRECN(UNKNOWN), HSRECN(WFI), HSRECN(CP15_32), HSRECN(CP15_64), \ | |
246 | HSRECN(CP14_MR), HSRECN(CP14_LS), HSRECN(CP_0_13), HSRECN(CP10_ID), \ | |
247 | HSRECN(JAZELLE), HSRECN(BXJ), HSRECN(CP14_64), HSRECN(SVC_HYP), \ | |
248 | HSRECN(HVC), HSRECN(SMC), HSRECN(IABT), HSRECN(IABT_HYP), \ | |
249 | HSRECN(DABT), HSRECN(DABT_HYP) | |
250 | ||
251 | ||
749cf76c | 252 | #endif /* __ARM_KVM_ARM_H__ */ |