1 | /* |
2 | * QEMU emulation of an Intel IOMMU (VT-d) |
3 | * (DMA Remapping device) |
4 | * |
5 | * Copyright (C) 2013 Knut Omang, Oracle <knut.omang@oracle.com> |
6 | * Copyright (C) 2014 Le Tan, <tamlokveer@gmail.com> |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify |
9 | * it under the terms of the GNU General Public License as published by |
10 | * the Free Software Foundation; either version 2 of the License, or |
11 | * (at your option) any later version. |
12 | |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * GNU General Public License for more details. |
17 | |
18 | * You should have received a copy of the GNU General Public License along |
19 | * with this program; if not, see <http://www.gnu.org/licenses/>. |
20 | * |
21 | * Lots of defines copied from kernel/include/linux/intel-iommu.h: |
22 | * Copyright (C) 2006-2008 Intel Corporation |
23 | * Author: Ashok Raj <ashok.raj@intel.com> |
24 | * Author: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> |
25 | * |
26 | */ |
27 | |
28 | #ifndef HW_I386_INTEL_IOMMU_INTERNAL_H |
29 | #define HW_I386_INTEL_IOMMU_INTERNAL_H |
30 | #include "hw/i386/intel_iommu.h" |
31 | |
32 | /* |
33 | * Intel IOMMU register specification |
34 | */ |
35 | #define DMAR_VER_REG 0x0 /* Arch version supported by this IOMMU */ |
36 | #define DMAR_CAP_REG 0x8 /* Hardware supported capabilities */ |
37 | #define DMAR_CAP_REG_HI 0xc /* High 32-bit of DMAR_CAP_REG */ |
38 | #define DMAR_ECAP_REG 0x10 /* Extended capabilities supported */ |
39 | #define DMAR_ECAP_REG_HI 0X14 |
40 | #define DMAR_GCMD_REG 0x18 /* Global command */ |
41 | #define DMAR_GSTS_REG 0x1c /* Global status */ |
42 | #define DMAR_RTADDR_REG 0x20 /* Root entry table */ |
43 | #define DMAR_RTADDR_REG_HI 0X24 |
44 | #define DMAR_CCMD_REG 0x28 /* Context command */ |
45 | #define DMAR_CCMD_REG_HI 0x2c |
46 | #define DMAR_FSTS_REG 0x34 /* Fault status */ |
47 | #define DMAR_FECTL_REG 0x38 /* Fault control */ |
48 | #define DMAR_FEDATA_REG 0x3c /* Fault event interrupt data */ |
49 | #define DMAR_FEADDR_REG 0x40 /* Fault event interrupt addr */ |
50 | #define DMAR_FEUADDR_REG 0x44 /* Upper address */ |
51 | #define DMAR_AFLOG_REG 0x58 /* Advanced fault control */ |
52 | #define DMAR_AFLOG_REG_HI 0X5c |
53 | #define DMAR_PMEN_REG 0x64 /* Enable protected memory region */ |
54 | #define DMAR_PLMBASE_REG 0x68 /* PMRR low addr */ |
55 | #define DMAR_PLMLIMIT_REG 0x6c /* PMRR low limit */ |
56 | #define DMAR_PHMBASE_REG 0x70 /* PMRR high base addr */ |
57 | #define DMAR_PHMBASE_REG_HI 0X74 |
58 | #define DMAR_PHMLIMIT_REG 0x78 /* PMRR high limit */ |
59 | #define DMAR_PHMLIMIT_REG_HI 0x7c |
60 | #define DMAR_IQH_REG 0x80 /* Invalidation queue head */ |
61 | #define DMAR_IQH_REG_HI 0X84 |
62 | #define DMAR_IQT_REG 0x88 /* Invalidation queue tail */ |
63 | #define DMAR_IQT_REG_HI 0X8c |
64 | #define DMAR_IQA_REG 0x90 /* Invalidation queue addr */ |
65 | #define DMAR_IQA_REG_HI 0x94 |
66 | #define DMAR_ICS_REG 0x9c /* Invalidation complete status */ |
67 | #define DMAR_IRTA_REG 0xb8 /* Interrupt remapping table addr */ |
68 | #define DMAR_IRTA_REG_HI 0xbc |
69 | #define DMAR_IECTL_REG 0xa0 /* Invalidation event control */ |
70 | #define DMAR_IEDATA_REG 0xa4 /* Invalidation event data */ |
71 | #define DMAR_IEADDR_REG 0xa8 /* Invalidation event address */ |
72 | #define DMAR_IEUADDR_REG 0xac /* Invalidation event address */ |
73 | #define DMAR_PQH_REG 0xc0 /* Page request queue head */ |
74 | #define DMAR_PQH_REG_HI 0xc4 |
75 | #define DMAR_PQT_REG 0xc8 /* Page request queue tail*/ |
76 | #define DMAR_PQT_REG_HI 0xcc |
77 | #define DMAR_PQA_REG 0xd0 /* Page request queue address */ |
78 | #define DMAR_PQA_REG_HI 0xd4 |
79 | #define DMAR_PRS_REG 0xdc /* Page request status */ |
80 | #define DMAR_PECTL_REG 0xe0 /* Page request event control */ |
81 | #define DMAR_PEDATA_REG 0xe4 /* Page request event data */ |
82 | #define DMAR_PEADDR_REG 0xe8 /* Page request event address */ |
83 | #define DMAR_PEUADDR_REG 0xec /* Page event upper address */ |
84 | #define DMAR_MTRRCAP_REG 0x100 /* MTRR capability */ |
85 | #define DMAR_MTRRCAP_REG_HI 0x104 |
86 | #define DMAR_MTRRDEF_REG 0x108 /* MTRR default type */ |
87 | #define DMAR_MTRRDEF_REG_HI 0x10c |
88 | |
89 | /* IOTLB registers */ |
90 | #define DMAR_IOTLB_REG_OFFSET 0xf0 /* Offset to the IOTLB registers */ |
91 | #define DMAR_IVA_REG DMAR_IOTLB_REG_OFFSET /* Invalidate address */ |
92 | #define DMAR_IVA_REG_HI (DMAR_IVA_REG + 4) |
93 | /* IOTLB invalidate register */ |
94 | #define DMAR_IOTLB_REG (DMAR_IOTLB_REG_OFFSET + 0x8) |
95 | #define DMAR_IOTLB_REG_HI (DMAR_IOTLB_REG + 4) |
96 | |
97 | /* FRCD */ |
98 | #define DMAR_FRCD_REG_OFFSET 0x220 /* Offset to the fault recording regs */ |
99 | /* NOTICE: If you change the DMAR_FRCD_REG_NR, please remember to change the |
100 | * DMAR_REG_SIZE in include/hw/i386/intel_iommu.h. |
101 | * #define DMAR_REG_SIZE (DMAR_FRCD_REG_OFFSET + 16 * DMAR_FRCD_REG_NR) |
102 | */ |
103 | #define DMAR_FRCD_REG_NR 1ULL /* Num of fault recording regs */ |
104 | |
105 | #define DMAR_FRCD_REG_0_0 0x220 /* The 0th fault recording regs */ |
106 | #define DMAR_FRCD_REG_0_1 0x224 |
107 | #define DMAR_FRCD_REG_0_2 0x228 |
108 | #define DMAR_FRCD_REG_0_3 0x22c |
109 | |
110 | /* Interrupt Address Range */ |
111 | #define VTD_INTERRUPT_ADDR_FIRST 0xfee00000ULL |
112 | #define VTD_INTERRUPT_ADDR_LAST 0xfeefffffULL |
113 | #define VTD_INTERRUPT_ADDR_SIZE (VTD_INTERRUPT_ADDR_LAST - \ |
114 | VTD_INTERRUPT_ADDR_FIRST + 1) |
115 | |
116 | /* The shift of source_id in the key of IOTLB hash table */ |
117 | #define VTD_IOTLB_SID_SHIFT 36 |
118 | #define VTD_IOTLB_LVL_SHIFT 52 |
119 | #define VTD_IOTLB_MAX_SIZE 1024 /* Max size of the hash table */ |
120 | |
121 | /* IOTLB_REG */ |
122 | #define VTD_TLB_GLOBAL_FLUSH (1ULL << 60) /* Global invalidation */ |
123 | #define VTD_TLB_DSI_FLUSH (2ULL << 60) /* Domain-selective */ |
124 | #define VTD_TLB_PSI_FLUSH (3ULL << 60) /* Page-selective */ |
125 | #define VTD_TLB_FLUSH_GRANU_MASK (3ULL << 60) |
126 | #define VTD_TLB_GLOBAL_FLUSH_A (1ULL << 57) |
127 | #define VTD_TLB_DSI_FLUSH_A (2ULL << 57) |
128 | #define VTD_TLB_PSI_FLUSH_A (3ULL << 57) |
129 | #define VTD_TLB_FLUSH_GRANU_MASK_A (3ULL << 57) |
130 | #define VTD_TLB_IVT (1ULL << 63) |
131 | #define VTD_TLB_DID(val) (((val) >> 32) & VTD_DOMAIN_ID_MASK) |
132 | |
133 | /* IVA_REG */ |
134 | #define VTD_IVA_ADDR(val) ((val) & ~0xfffULL) |
135 | #define VTD_IVA_AM(val) ((val) & 0x3fULL) |
136 | |
137 | /* GCMD_REG */ |
138 | #define VTD_GCMD_TE (1UL << 31) |
139 | #define VTD_GCMD_SRTP (1UL << 30) |
140 | #define VTD_GCMD_SFL (1UL << 29) |
141 | #define VTD_GCMD_EAFL (1UL << 28) |
142 | #define VTD_GCMD_WBF (1UL << 27) |
143 | #define VTD_GCMD_QIE (1UL << 26) |
144 | #define VTD_GCMD_IRE (1UL << 25) |
145 | #define VTD_GCMD_SIRTP (1UL << 24) |
146 | #define VTD_GCMD_CFI (1UL << 23) |
147 | |
148 | /* GSTS_REG */ |
149 | #define VTD_GSTS_TES (1UL << 31) |
150 | #define VTD_GSTS_RTPS (1UL << 30) |
151 | #define VTD_GSTS_FLS (1UL << 29) |
152 | #define VTD_GSTS_AFLS (1UL << 28) |
153 | #define VTD_GSTS_WBFS (1UL << 27) |
154 | #define VTD_GSTS_QIES (1UL << 26) |
155 | #define VTD_GSTS_IRES (1UL << 25) |
156 | #define VTD_GSTS_IRTPS (1UL << 24) |
157 | #define VTD_GSTS_CFIS (1UL << 23) |
158 | |
159 | /* CCMD_REG */ |
160 | #define VTD_CCMD_ICC (1ULL << 63) |
161 | #define VTD_CCMD_GLOBAL_INVL (1ULL << 61) |
162 | #define VTD_CCMD_DOMAIN_INVL (2ULL << 61) |
163 | #define VTD_CCMD_DEVICE_INVL (3ULL << 61) |
164 | #define VTD_CCMD_CIRG_MASK (3ULL << 61) |
165 | #define VTD_CCMD_GLOBAL_INVL_A (1ULL << 59) |
166 | #define VTD_CCMD_DOMAIN_INVL_A (2ULL << 59) |
167 | #define VTD_CCMD_DEVICE_INVL_A (3ULL << 59) |
168 | #define VTD_CCMD_CAIG_MASK (3ULL << 59) |
169 | #define VTD_CCMD_DID(val) ((val) & VTD_DOMAIN_ID_MASK) |
170 | #define VTD_CCMD_SID(val) (((val) >> 16) & 0xffffULL) |
171 | #define VTD_CCMD_FM(val) (((val) >> 32) & 3ULL) |
172 | |
173 | /* RTADDR_REG */ |
174 | #define VTD_RTADDR_SMT (1ULL << 10) |
175 | #define VTD_RTADDR_ADDR_MASK(aw) (VTD_HAW_MASK(aw) ^ 0xfffULL) |
176 | |
177 | /* IRTA_REG */ |
178 | #define VTD_IRTA_ADDR_MASK(aw) (VTD_HAW_MASK(aw) ^ 0xfffULL) |
179 | #define VTD_IRTA_EIME (1ULL << 11) |
180 | #define VTD_IRTA_SIZE_MASK (0xfULL) |
181 | |
182 | /* ECAP_REG */ |
183 | /* (offset >> 4) << 8 */ |
184 | #define VTD_ECAP_IRO (DMAR_IOTLB_REG_OFFSET << 4) |
185 | #define VTD_ECAP_QI (1ULL << 1) |
186 | #define VTD_ECAP_DT (1ULL << 2) |
187 | /* Interrupt Remapping support */ |
188 | #define VTD_ECAP_IR (1ULL << 3) |
189 | #define VTD_ECAP_EIM (1ULL << 4) |
190 | #define VTD_ECAP_PT (1ULL << 6) |
191 | #define VTD_ECAP_MHMV (15ULL << 20) |
192 | #define VTD_ECAP_SRS (1ULL << 31) |
193 | #define VTD_ECAP_SMTS (1ULL << 43) |
194 | #define VTD_ECAP_SLTS (1ULL << 46) |
195 | |
196 | /* CAP_REG */ |
197 | /* (offset >> 4) << 24 */ |
198 | #define VTD_CAP_FRO (DMAR_FRCD_REG_OFFSET << 20) |
199 | #define VTD_CAP_NFR ((DMAR_FRCD_REG_NR - 1) << 40) |
200 | #define VTD_DOMAIN_ID_SHIFT 16 /* 16-bit domain id for 64K domains */ |
201 | #define VTD_DOMAIN_ID_MASK ((1UL << VTD_DOMAIN_ID_SHIFT) - 1) |
202 | #define VTD_CAP_ND (((VTD_DOMAIN_ID_SHIFT - 4) / 2) & 7ULL) |
203 | #define VTD_ADDRESS_SIZE(aw) (1ULL << (aw)) |
204 | #define VTD_CAP_MGAW(aw) ((((aw) - 1) & 0x3fULL) << 16) |
205 | #define VTD_MAMV 18ULL |
206 | #define VTD_CAP_MAMV (VTD_MAMV << 48) |
207 | #define VTD_CAP_PSI (1ULL << 39) |
208 | #define VTD_CAP_SLLPS ((1ULL << 34) | (1ULL << 35)) |
209 | #define VTD_CAP_DRAIN_WRITE (1ULL << 54) |
210 | #define VTD_CAP_DRAIN_READ (1ULL << 55) |
211 | #define VTD_CAP_DRAIN (VTD_CAP_DRAIN_READ | VTD_CAP_DRAIN_WRITE) |
212 | #define VTD_CAP_CM (1ULL << 7) |
213 | |
214 | /* Supported Adjusted Guest Address Widths */ |
215 | #define VTD_CAP_SAGAW_SHIFT 8 |
216 | #define VTD_CAP_SAGAW_MASK (0x1fULL << VTD_CAP_SAGAW_SHIFT) |
217 | /* 39-bit AGAW, 3-level page-table */ |
218 | #define VTD_CAP_SAGAW_39bit (0x2ULL << VTD_CAP_SAGAW_SHIFT) |
219 | /* 48-bit AGAW, 4-level page-table */ |
220 | #define VTD_CAP_SAGAW_48bit (0x4ULL << VTD_CAP_SAGAW_SHIFT) |
221 | |
222 | /* IQT_REG */ |
223 | #define VTD_IQT_QT(dw_bit, val) (dw_bit ? (((val) >> 5) & 0x3fffULL) : \ |
224 | (((val) >> 4) & 0x7fffULL)) |
225 | #define VTD_IQT_QT_256_RSV_BIT 0x10 |
226 | |
227 | /* IQA_REG */ |
228 | #define VTD_IQA_IQA_MASK(aw) (VTD_HAW_MASK(aw) ^ 0xfffULL) |
229 | #define VTD_IQA_QS 0x7ULL |
230 | #define VTD_IQA_DW_MASK 0x800 |
231 | |
232 | /* IQH_REG */ |
233 | #define VTD_IQH_QH_SHIFT 4 |
234 | #define VTD_IQH_QH_MASK 0x7fff0ULL |
235 | |
236 | /* ICS_REG */ |
237 | #define VTD_ICS_IWC 1UL |
238 | |
239 | /* IECTL_REG */ |
240 | #define VTD_IECTL_IM (1UL << 31) |
241 | #define VTD_IECTL_IP (1UL << 30) |
242 | |
243 | /* FSTS_REG */ |
244 | #define VTD_FSTS_FRI_MASK 0xff00UL |
245 | #define VTD_FSTS_FRI(val) ((((uint32_t)(val)) << 8) & VTD_FSTS_FRI_MASK) |
246 | #define VTD_FSTS_IQE (1UL << 4) |
247 | #define VTD_FSTS_PPF (1UL << 1) |
248 | #define VTD_FSTS_PFO 1UL |
249 | |
250 | /* FECTL_REG */ |
251 | #define VTD_FECTL_IM (1UL << 31) |
252 | #define VTD_FECTL_IP (1UL << 30) |
253 | |
254 | /* Fault Recording Register */ |
255 | /* For the high 64-bit of 128-bit */ |
256 | #define VTD_FRCD_F (1ULL << 63) |
257 | #define VTD_FRCD_T (1ULL << 62) |
258 | #define VTD_FRCD_FR(val) (((val) & 0xffULL) << 32) |
259 | #define VTD_FRCD_SID_MASK 0xffffULL |
260 | #define VTD_FRCD_SID(val) ((val) & VTD_FRCD_SID_MASK) |
261 | /* For the low 64-bit of 128-bit */ |
262 | #define VTD_FRCD_FI(val) ((val) & ~0xfffULL) |
263 | |
264 | /* DMA Remapping Fault Conditions */ |
265 | typedef enum VTDFaultReason { |
266 | VTD_FR_RESERVED = 0, /* Reserved for Advanced Fault logging */ |
267 | VTD_FR_ROOT_ENTRY_P = 1, /* The Present(P) field of root-entry is 0 */ |
268 | VTD_FR_CONTEXT_ENTRY_P, /* The Present(P) field of context-entry is 0 */ |
269 | VTD_FR_CONTEXT_ENTRY_INV, /* Invalid programming of a context-entry */ |
270 | VTD_FR_ADDR_BEYOND_MGAW, /* Input-address above (2^x-1) */ |
271 | VTD_FR_WRITE, /* No write permission */ |
272 | VTD_FR_READ, /* No read permission */ |
273 | /* Fail to access a second-level paging entry (not SL_PML4E) */ |
274 | VTD_FR_PAGING_ENTRY_INV, |
275 | VTD_FR_ROOT_TABLE_INV, /* Fail to access a root-entry */ |
276 | VTD_FR_CONTEXT_TABLE_INV, /* Fail to access a context-entry */ |
277 | /* Non-zero reserved field in a present root-entry */ |
278 | VTD_FR_ROOT_ENTRY_RSVD, |
279 | /* Non-zero reserved field in a present context-entry */ |
280 | VTD_FR_CONTEXT_ENTRY_RSVD, |
281 | /* Non-zero reserved field in a second-level paging entry with at lease one |
282 | * Read(R) and Write(W) or Execute(E) field is Set. |
283 | */ |
284 | VTD_FR_PAGING_ENTRY_RSVD, |
285 | /* Translation request or translated request explicitly blocked dut to the |
286 | * programming of the Translation Type (T) field in the present |
287 | * context-entry. |
288 | */ |
289 | VTD_FR_CONTEXT_ENTRY_TT, |
290 | |
291 | /* Interrupt remapping transition faults */ |
292 | VTD_FR_IR_REQ_RSVD = 0x20, /* One or more IR request reserved |
293 | * fields set */ |
294 | VTD_FR_IR_INDEX_OVER = 0x21, /* Index value greater than max */ |
295 | VTD_FR_IR_ENTRY_P = 0x22, /* Present (P) not set in IRTE */ |
296 | VTD_FR_IR_ROOT_INVAL = 0x23, /* IR Root table invalid */ |
297 | VTD_FR_IR_IRTE_RSVD = 0x24, /* IRTE Rsvd field non-zero with |
298 | * Present flag set */ |
299 | VTD_FR_IR_REQ_COMPAT = 0x25, /* Encountered compatible IR |
300 | * request while disabled */ |
301 | VTD_FR_IR_SID_ERR = 0x26, /* Invalid Source-ID */ |
302 | |
303 | VTD_FR_PASID_TABLE_INV = 0x58, /*Invalid PASID table entry */ |
304 | |
305 | /* This is not a normal fault reason. We use this to indicate some faults |
306 | * that are not referenced by the VT-d specification. |
307 | * Fault event with such reason should not be recorded. |
308 | */ |
309 | VTD_FR_RESERVED_ERR, |
310 | VTD_FR_MAX, /* Guard */ |
311 | } VTDFaultReason; |
312 | |
313 | #define VTD_CONTEXT_CACHE_GEN_MAX 0xffffffffUL |
314 | |
315 | /* Interrupt Entry Cache Invalidation Descriptor: VT-d 6.5.2.7. */ |
316 | struct VTDInvDescIEC { |
317 | uint32_t type:4; /* Should always be 0x4 */ |
318 | uint32_t granularity:1; /* If set, it's global IR invalidation */ |
319 | uint32_t resved_1:22; |
320 | uint32_t index_mask:5; /* 2^N for continuous int invalidation */ |
321 | uint32_t index:16; /* Start index to invalidate */ |
322 | uint32_t reserved_2:16; |
323 | }; |
324 | typedef struct VTDInvDescIEC VTDInvDescIEC; |
325 | |
326 | /* Queued Invalidation Descriptor */ |
327 | union VTDInvDesc { |
328 | struct { |
329 | uint64_t lo; |
330 | uint64_t hi; |
331 | }; |
332 | struct { |
333 | uint64_t val[4]; |
334 | }; |
335 | union { |
336 | VTDInvDescIEC iec; |
337 | }; |
338 | }; |
339 | typedef union VTDInvDesc VTDInvDesc; |
340 | |
341 | /* Masks for struct VTDInvDesc */ |
342 | #define VTD_INV_DESC_TYPE 0xf |
343 | #define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */ |
344 | #define VTD_INV_DESC_IOTLB 0x2 |
345 | #define VTD_INV_DESC_DEVICE 0x3 |
346 | #define VTD_INV_DESC_IEC 0x4 /* Interrupt Entry Cache |
347 | Invalidate Descriptor */ |
348 | #define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */ |
349 | #define VTD_INV_DESC_PIOTLB 0x6 /* PASID-IOTLB Invalidate Desc */ |
350 | #define VTD_INV_DESC_PC 0x7 /* PASID-cache Invalidate Desc */ |
351 | #define VTD_INV_DESC_NONE 0 /* Not an Invalidate Descriptor */ |
352 | |
353 | /* Masks for Invalidation Wait Descriptor*/ |
354 | #define VTD_INV_DESC_WAIT_SW (1ULL << 5) |
355 | #define VTD_INV_DESC_WAIT_IF (1ULL << 4) |
356 | #define VTD_INV_DESC_WAIT_FN (1ULL << 6) |
357 | #define VTD_INV_DESC_WAIT_DATA_SHIFT 32 |
358 | #define VTD_INV_DESC_WAIT_RSVD_LO 0Xffffff80ULL |
359 | #define VTD_INV_DESC_WAIT_RSVD_HI 3ULL |
360 | |
361 | /* Masks for Context-cache Invalidation Descriptor */ |
362 | #define VTD_INV_DESC_CC_G (3ULL << 4) |
363 | #define VTD_INV_DESC_CC_GLOBAL (1ULL << 4) |
364 | #define VTD_INV_DESC_CC_DOMAIN (2ULL << 4) |
365 | #define VTD_INV_DESC_CC_DEVICE (3ULL << 4) |
366 | #define VTD_INV_DESC_CC_DID(val) (((val) >> 16) & VTD_DOMAIN_ID_MASK) |
367 | #define VTD_INV_DESC_CC_SID(val) (((val) >> 32) & 0xffffUL) |
368 | #define VTD_INV_DESC_CC_FM(val) (((val) >> 48) & 3UL) |
369 | #define VTD_INV_DESC_CC_RSVD 0xfffc00000000ffc0ULL |
370 | |
371 | /* Masks for IOTLB Invalidate Descriptor */ |
372 | #define VTD_INV_DESC_IOTLB_G (3ULL << 4) |
373 | #define VTD_INV_DESC_IOTLB_GLOBAL (1ULL << 4) |
374 | #define VTD_INV_DESC_IOTLB_DOMAIN (2ULL << 4) |
375 | #define VTD_INV_DESC_IOTLB_PAGE (3ULL << 4) |
376 | #define VTD_INV_DESC_IOTLB_DID(val) (((val) >> 16) & VTD_DOMAIN_ID_MASK) |
377 | #define VTD_INV_DESC_IOTLB_ADDR(val) ((val) & ~0xfffULL) |
378 | #define VTD_INV_DESC_IOTLB_AM(val) ((val) & 0x3fULL) |
379 | #define VTD_INV_DESC_IOTLB_RSVD_LO 0xffffffff0000ff00ULL |
380 | #define VTD_INV_DESC_IOTLB_RSVD_HI 0xf80ULL |
381 | |
382 | /* Mask for Device IOTLB Invalidate Descriptor */ |
383 | #define VTD_INV_DESC_DEVICE_IOTLB_ADDR(val) ((val) & 0xfffffffffffff000ULL) |
384 | #define VTD_INV_DESC_DEVICE_IOTLB_SIZE(val) ((val) & 0x1) |
385 | #define VTD_INV_DESC_DEVICE_IOTLB_SID(val) (((val) >> 32) & 0xFFFFULL) |
386 | #define VTD_INV_DESC_DEVICE_IOTLB_RSVD_HI 0xffeULL |
387 | #define VTD_INV_DESC_DEVICE_IOTLB_RSVD_LO 0xffff0000ffe0fff8 |
388 | |
389 | /* Rsvd field masks for spte */ |
390 | #define VTD_SPTE_PAGE_L1_RSVD_MASK(aw) \ |
391 | (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
392 | #define VTD_SPTE_PAGE_L2_RSVD_MASK(aw) \ |
393 | (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
394 | #define VTD_SPTE_PAGE_L3_RSVD_MASK(aw) \ |
395 | (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
396 | #define VTD_SPTE_PAGE_L4_RSVD_MASK(aw) \ |
397 | (0x880ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
398 | #define VTD_SPTE_LPAGE_L1_RSVD_MASK(aw) \ |
399 | (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
400 | #define VTD_SPTE_LPAGE_L2_RSVD_MASK(aw) \ |
401 | (0x1ff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
402 | #define VTD_SPTE_LPAGE_L3_RSVD_MASK(aw) \ |
403 | (0x3ffff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
404 | #define VTD_SPTE_LPAGE_L4_RSVD_MASK(aw) \ |
405 | (0x880ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) |
406 | |
407 | /* Information about page-selective IOTLB invalidate */ |
408 | struct VTDIOTLBPageInvInfo { |
409 | uint16_t domain_id; |
410 | uint64_t addr; |
411 | uint8_t mask; |
412 | }; |
413 | typedef struct VTDIOTLBPageInvInfo VTDIOTLBPageInvInfo; |
414 | |
415 | /* Pagesize of VTD paging structures, including root and context tables */ |
416 | #define VTD_PAGE_SHIFT 12 |
417 | #define VTD_PAGE_SIZE (1ULL << VTD_PAGE_SHIFT) |
418 | |
419 | #define VTD_PAGE_SHIFT_4K 12 |
420 | #define VTD_PAGE_MASK_4K (~((1ULL << VTD_PAGE_SHIFT_4K) - 1)) |
421 | #define VTD_PAGE_SHIFT_2M 21 |
422 | #define VTD_PAGE_MASK_2M (~((1ULL << VTD_PAGE_SHIFT_2M) - 1)) |
423 | #define VTD_PAGE_SHIFT_1G 30 |
424 | #define VTD_PAGE_MASK_1G (~((1ULL << VTD_PAGE_SHIFT_1G) - 1)) |
425 | |
426 | struct VTDRootEntry { |
427 | uint64_t lo; |
428 | uint64_t hi; |
429 | }; |
430 | typedef struct VTDRootEntry VTDRootEntry; |
431 | |
432 | /* Masks for struct VTDRootEntry */ |
433 | #define VTD_ROOT_ENTRY_P 1ULL |
434 | #define VTD_ROOT_ENTRY_CTP (~0xfffULL) |
435 | |
436 | #define VTD_ROOT_ENTRY_NR (VTD_PAGE_SIZE / sizeof(VTDRootEntry)) |
437 | #define VTD_ROOT_ENTRY_RSVD(aw) (0xffeULL | ~VTD_HAW_MASK(aw)) |
438 | |
439 | #define VTD_DEVFN_CHECK_MASK 0x80 |
440 | |
441 | /* Masks for struct VTDContextEntry */ |
442 | /* lo */ |
443 | #define VTD_CONTEXT_ENTRY_P (1ULL << 0) |
444 | #define VTD_CONTEXT_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */ |
445 | #define VTD_CONTEXT_ENTRY_TT (3ULL << 2) /* Translation Type */ |
446 | #define VTD_CONTEXT_TT_MULTI_LEVEL 0 |
447 | #define VTD_CONTEXT_TT_DEV_IOTLB (1ULL << 2) |
448 | #define VTD_CONTEXT_TT_PASS_THROUGH (2ULL << 2) |
449 | /* Second Level Page Translation Pointer*/ |
450 | #define VTD_CONTEXT_ENTRY_SLPTPTR (~0xfffULL) |
451 | #define VTD_CONTEXT_ENTRY_RSVD_LO(aw) (0xff0ULL | ~VTD_HAW_MASK(aw)) |
452 | /* hi */ |
453 | #define VTD_CONTEXT_ENTRY_AW 7ULL /* Adjusted guest-address-width */ |
454 | #define VTD_CONTEXT_ENTRY_DID(val) (((val) >> 8) & VTD_DOMAIN_ID_MASK) |
455 | #define VTD_CONTEXT_ENTRY_RSVD_HI 0xffffffffff000080ULL |
456 | |
457 | #define VTD_CONTEXT_ENTRY_NR (VTD_PAGE_SIZE / sizeof(VTDContextEntry)) |
458 | |
459 | #define VTD_CTX_ENTRY_LEGACY_SIZE 16 |
460 | #define VTD_CTX_ENTRY_SCALABLE_SIZE 32 |
461 | |
462 | #define VTD_SM_CONTEXT_ENTRY_RID2PASID_MASK 0xfffff |
463 | #define VTD_SM_CONTEXT_ENTRY_RSVD_VAL0(aw) (0x1e0ULL | ~VTD_HAW_MASK(aw)) |
464 | #define VTD_SM_CONTEXT_ENTRY_RSVD_VAL1 0xffffffffffe00000ULL |
465 | |
466 | /* PASID Table Related Definitions */ |
467 | #define VTD_PASID_DIR_BASE_ADDR_MASK (~0xfffULL) |
468 | #define VTD_PASID_TABLE_BASE_ADDR_MASK (~0xfffULL) |
469 | #define VTD_PASID_DIR_ENTRY_SIZE 8 |
470 | #define VTD_PASID_ENTRY_SIZE 64 |
471 | #define VTD_PASID_DIR_BITS_MASK (0x3fffULL) |
472 | #define VTD_PASID_DIR_INDEX(pasid) (((pasid) >> 6) & VTD_PASID_DIR_BITS_MASK) |
473 | #define VTD_PASID_DIR_FPD (1ULL << 1) /* Fault Processing Disable */ |
474 | #define VTD_PASID_TABLE_BITS_MASK (0x3fULL) |
475 | #define VTD_PASID_TABLE_INDEX(pasid) ((pasid) & VTD_PASID_TABLE_BITS_MASK) |
476 | #define VTD_PASID_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */ |
477 | |
478 | /* PASID Granular Translation Type Mask */ |
479 | #define VTD_SM_PASID_ENTRY_PGTT (7ULL << 6) |
480 | #define VTD_SM_PASID_ENTRY_FLT (1ULL << 6) |
481 | #define VTD_SM_PASID_ENTRY_SLT (2ULL << 6) |
482 | #define VTD_SM_PASID_ENTRY_NESTED (3ULL << 6) |
483 | #define VTD_SM_PASID_ENTRY_PT (4ULL << 6) |
484 | |
485 | #define VTD_SM_PASID_ENTRY_AW 7ULL /* Adjusted guest-address-width */ |
486 | #define VTD_SM_PASID_ENTRY_DID(val) ((val) & VTD_DOMAIN_ID_MASK) |
487 | |
488 | /* Second Level Page Translation Pointer*/ |
489 | #define VTD_SM_PASID_ENTRY_SLPTPTR (~0xfffULL) |
490 | |
491 | /* Paging Structure common */ |
492 | #define VTD_SL_PT_PAGE_SIZE_MASK (1ULL << 7) |
493 | /* Bits to decide the offset for each level */ |
494 | #define VTD_SL_LEVEL_BITS 9 |
495 | |
496 | /* Second Level Paging Structure */ |
497 | #define VTD_SL_PML4_LEVEL 4 |
498 | #define VTD_SL_PDP_LEVEL 3 |
499 | #define VTD_SL_PD_LEVEL 2 |
500 | #define VTD_SL_PT_LEVEL 1 |
501 | #define VTD_SL_PT_ENTRY_NR 512 |
502 | |
503 | /* Masks for Second Level Paging Entry */ |
504 | #define VTD_SL_RW_MASK 3ULL |
505 | #define VTD_SL_R 1ULL |
506 | #define VTD_SL_W (1ULL << 1) |
507 | #define VTD_SL_PT_BASE_ADDR_MASK(aw) (~(VTD_PAGE_SIZE - 1) & VTD_HAW_MASK(aw)) |
508 | #define VTD_SL_IGN_COM 0xbff0000000000000ULL |
509 | |
510 | #endif |
511 | |