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 4 234 #define VTD_IQH_QH_SHIFT_5 5 235 #define VTD_IQH_QH_MASK 0x7fff0ULL 236 237 /* ICS_REG */ 238 #define VTD_ICS_IWC 1UL 239 240 /* IECTL_REG */ 241 #define VTD_IECTL_IM (1UL << 31) 242 #define VTD_IECTL_IP (1UL << 30) 243 244 /* FSTS_REG */ 245 #define VTD_FSTS_FRI_MASK 0xff00UL 246 #define VTD_FSTS_FRI(val) ((((uint32_t)(val)) << 8) & VTD_FSTS_FRI_MASK) 247 #define VTD_FSTS_IQE (1UL << 4) 248 #define VTD_FSTS_PPF (1UL << 1) 249 #define VTD_FSTS_PFO 1UL 250 251 /* FECTL_REG */ 252 #define VTD_FECTL_IM (1UL << 31) 253 #define VTD_FECTL_IP (1UL << 30) 254 255 /* Fault Recording Register */ 256 /* For the high 64-bit of 128-bit */ 257 #define VTD_FRCD_F (1ULL << 63) 258 #define VTD_FRCD_T (1ULL << 62) 259 #define VTD_FRCD_FR(val) (((val) & 0xffULL) << 32) 260 #define VTD_FRCD_SID_MASK 0xffffULL 261 #define VTD_FRCD_SID(val) ((val) & VTD_FRCD_SID_MASK) 262 /* For the low 64-bit of 128-bit */ 263 #define VTD_FRCD_FI(val) ((val) & ~0xfffULL) 264 265 /* DMA Remapping Fault Conditions */ 266 typedef enum VTDFaultReason { 267 VTD_FR_RESERVED = 0, /* Reserved for Advanced Fault logging */ 268 VTD_FR_ROOT_ENTRY_P = 1, /* The Present(P) field of root-entry is 0 */ 269 VTD_FR_CONTEXT_ENTRY_P, /* The Present(P) field of context-entry is 0 */ 270 VTD_FR_CONTEXT_ENTRY_INV, /* Invalid programming of a context-entry */ 271 VTD_FR_ADDR_BEYOND_MGAW, /* Input-address above (2^x-1) */ 272 VTD_FR_WRITE, /* No write permission */ 273 VTD_FR_READ, /* No read permission */ 274 /* Fail to access a second-level paging entry (not SL_PML4E) */ 275 VTD_FR_PAGING_ENTRY_INV, 276 VTD_FR_ROOT_TABLE_INV, /* Fail to access a root-entry */ 277 VTD_FR_CONTEXT_TABLE_INV, /* Fail to access a context-entry */ 278 /* Non-zero reserved field in a present root-entry */ 279 VTD_FR_ROOT_ENTRY_RSVD, 280 /* Non-zero reserved field in a present context-entry */ 281 VTD_FR_CONTEXT_ENTRY_RSVD, 282 /* Non-zero reserved field in a second-level paging entry with at lease one 283 * Read(R) and Write(W) or Execute(E) field is Set. 284 */ 285 VTD_FR_PAGING_ENTRY_RSVD, 286 /* Translation request or translated request explicitly blocked dut to the 287 * programming of the Translation Type (T) field in the present 288 * context-entry. 289 */ 290 VTD_FR_CONTEXT_ENTRY_TT, 291 292 /* Interrupt remapping transition faults */ 293 VTD_FR_IR_REQ_RSVD = 0x20, /* One or more IR request reserved 294 * fields set */ 295 VTD_FR_IR_INDEX_OVER = 0x21, /* Index value greater than max */ 296 VTD_FR_IR_ENTRY_P = 0x22, /* Present (P) not set in IRTE */ 297 VTD_FR_IR_ROOT_INVAL = 0x23, /* IR Root table invalid */ 298 VTD_FR_IR_IRTE_RSVD = 0x24, /* IRTE Rsvd field non-zero with 299 * Present flag set */ 300 VTD_FR_IR_REQ_COMPAT = 0x25, /* Encountered compatible IR 301 * request while disabled */ 302 VTD_FR_IR_SID_ERR = 0x26, /* Invalid Source-ID */ 303 304 VTD_FR_PASID_TABLE_INV = 0x58, /*Invalid PASID table entry */ 305 306 /* This is not a normal fault reason. We use this to indicate some faults 307 * that are not referenced by the VT-d specification. 308 * Fault event with such reason should not be recorded. 309 */ 310 VTD_FR_RESERVED_ERR, 311 VTD_FR_MAX, /* Guard */ 312 } VTDFaultReason; 313 314 #define VTD_CONTEXT_CACHE_GEN_MAX 0xffffffffUL 315 316 /* Interrupt Entry Cache Invalidation Descriptor: VT-d 6.5.2.7. */ 317 struct VTDInvDescIEC { 318 uint32_t type:4; /* Should always be 0x4 */ 319 uint32_t granularity:1; /* If set, it's global IR invalidation */ 320 uint32_t resved_1:22; 321 uint32_t index_mask:5; /* 2^N for continuous int invalidation */ 322 uint32_t index:16; /* Start index to invalidate */ 323 uint32_t reserved_2:16; 324 }; 325 typedef struct VTDInvDescIEC VTDInvDescIEC; 326 327 /* Queued Invalidation Descriptor */ 328 union VTDInvDesc { 329 struct { 330 uint64_t lo; 331 uint64_t hi; 332 }; 333 struct { 334 uint64_t val[4]; 335 }; 336 union { 337 VTDInvDescIEC iec; 338 }; 339 }; 340 typedef union VTDInvDesc VTDInvDesc; 341 342 /* Masks for struct VTDInvDesc */ 343 #define VTD_INV_DESC_TYPE 0xf 344 #define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */ 345 #define VTD_INV_DESC_IOTLB 0x2 346 #define VTD_INV_DESC_DEVICE 0x3 347 #define VTD_INV_DESC_IEC 0x4 /* Interrupt Entry Cache 348 Invalidate Descriptor */ 349 #define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */ 350 #define VTD_INV_DESC_PIOTLB 0x6 /* PASID-IOTLB Invalidate Desc */ 351 #define VTD_INV_DESC_PC 0x7 /* PASID-cache Invalidate Desc */ 352 #define VTD_INV_DESC_NONE 0 /* Not an Invalidate Descriptor */ 353 354 /* Masks for Invalidation Wait Descriptor*/ 355 #define VTD_INV_DESC_WAIT_SW (1ULL << 5) 356 #define VTD_INV_DESC_WAIT_IF (1ULL << 4) 357 #define VTD_INV_DESC_WAIT_FN (1ULL << 6) 358 #define VTD_INV_DESC_WAIT_DATA_SHIFT 32 359 #define VTD_INV_DESC_WAIT_RSVD_LO 0Xffffff80ULL 360 #define VTD_INV_DESC_WAIT_RSVD_HI 3ULL 361 362 /* Masks for Context-cache Invalidation Descriptor */ 363 #define VTD_INV_DESC_CC_G (3ULL << 4) 364 #define VTD_INV_DESC_CC_GLOBAL (1ULL << 4) 365 #define VTD_INV_DESC_CC_DOMAIN (2ULL << 4) 366 #define VTD_INV_DESC_CC_DEVICE (3ULL << 4) 367 #define VTD_INV_DESC_CC_DID(val) (((val) >> 16) & VTD_DOMAIN_ID_MASK) 368 #define VTD_INV_DESC_CC_SID(val) (((val) >> 32) & 0xffffUL) 369 #define VTD_INV_DESC_CC_FM(val) (((val) >> 48) & 3UL) 370 #define VTD_INV_DESC_CC_RSVD 0xfffc00000000ffc0ULL 371 372 /* Masks for IOTLB Invalidate Descriptor */ 373 #define VTD_INV_DESC_IOTLB_G (3ULL << 4) 374 #define VTD_INV_DESC_IOTLB_GLOBAL (1ULL << 4) 375 #define VTD_INV_DESC_IOTLB_DOMAIN (2ULL << 4) 376 #define VTD_INV_DESC_IOTLB_PAGE (3ULL << 4) 377 #define VTD_INV_DESC_IOTLB_DID(val) (((val) >> 16) & VTD_DOMAIN_ID_MASK) 378 #define VTD_INV_DESC_IOTLB_ADDR(val) ((val) & ~0xfffULL) 379 #define VTD_INV_DESC_IOTLB_AM(val) ((val) & 0x3fULL) 380 #define VTD_INV_DESC_IOTLB_RSVD_LO 0xffffffff0000ff00ULL 381 #define VTD_INV_DESC_IOTLB_RSVD_HI 0xf80ULL 382 383 /* Mask for Device IOTLB Invalidate Descriptor */ 384 #define VTD_INV_DESC_DEVICE_IOTLB_ADDR(val) ((val) & 0xfffffffffffff000ULL) 385 #define VTD_INV_DESC_DEVICE_IOTLB_SIZE(val) ((val) & 0x1) 386 #define VTD_INV_DESC_DEVICE_IOTLB_SID(val) (((val) >> 32) & 0xFFFFULL) 387 #define VTD_INV_DESC_DEVICE_IOTLB_RSVD_HI 0xffeULL 388 #define VTD_INV_DESC_DEVICE_IOTLB_RSVD_LO 0xffff0000ffe0fff8 389 390 /* Rsvd field masks for spte */ 391 #define VTD_SPTE_SNP 0x800ULL 392 393 #define VTD_SPTE_PAGE_L1_RSVD_MASK(aw, dt_supported) \ 394 dt_supported ? \ 395 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM | VTD_SL_TM)) : \ 396 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 397 #define VTD_SPTE_PAGE_L2_RSVD_MASK(aw) \ 398 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 399 #define VTD_SPTE_PAGE_L3_RSVD_MASK(aw) \ 400 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 401 #define VTD_SPTE_PAGE_L4_RSVD_MASK(aw) \ 402 (0x880ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 403 404 #define VTD_SPTE_LPAGE_L2_RSVD_MASK(aw, dt_supported) \ 405 dt_supported ? \ 406 (0x1ff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM | VTD_SL_TM)) : \ 407 (0x1ff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 408 #define VTD_SPTE_LPAGE_L3_RSVD_MASK(aw, dt_supported) \ 409 dt_supported ? \ 410 (0x3ffff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM | VTD_SL_TM)) : \ 411 (0x3ffff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 412 413 /* Information about page-selective IOTLB invalidate */ 414 struct VTDIOTLBPageInvInfo { 415 uint16_t domain_id; 416 uint64_t addr; 417 uint8_t mask; 418 }; 419 typedef struct VTDIOTLBPageInvInfo VTDIOTLBPageInvInfo; 420 421 /* Pagesize of VTD paging structures, including root and context tables */ 422 #define VTD_PAGE_SHIFT 12 423 #define VTD_PAGE_SIZE (1ULL << VTD_PAGE_SHIFT) 424 425 #define VTD_PAGE_SHIFT_4K 12 426 #define VTD_PAGE_MASK_4K (~((1ULL << VTD_PAGE_SHIFT_4K) - 1)) 427 #define VTD_PAGE_SHIFT_2M 21 428 #define VTD_PAGE_MASK_2M (~((1ULL << VTD_PAGE_SHIFT_2M) - 1)) 429 #define VTD_PAGE_SHIFT_1G 30 430 #define VTD_PAGE_MASK_1G (~((1ULL << VTD_PAGE_SHIFT_1G) - 1)) 431 432 struct VTDRootEntry { 433 uint64_t lo; 434 uint64_t hi; 435 }; 436 typedef struct VTDRootEntry VTDRootEntry; 437 438 /* Masks for struct VTDRootEntry */ 439 #define VTD_ROOT_ENTRY_P 1ULL 440 #define VTD_ROOT_ENTRY_CTP (~0xfffULL) 441 442 #define VTD_ROOT_ENTRY_NR (VTD_PAGE_SIZE / sizeof(VTDRootEntry)) 443 #define VTD_ROOT_ENTRY_RSVD(aw) (0xffeULL | ~VTD_HAW_MASK(aw)) 444 445 #define VTD_DEVFN_CHECK_MASK 0x80 446 447 /* Masks for struct VTDContextEntry */ 448 /* lo */ 449 #define VTD_CONTEXT_ENTRY_P (1ULL << 0) 450 #define VTD_CONTEXT_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */ 451 #define VTD_CONTEXT_ENTRY_TT (3ULL << 2) /* Translation Type */ 452 #define VTD_CONTEXT_TT_MULTI_LEVEL 0 453 #define VTD_CONTEXT_TT_DEV_IOTLB (1ULL << 2) 454 #define VTD_CONTEXT_TT_PASS_THROUGH (2ULL << 2) 455 /* Second Level Page Translation Pointer*/ 456 #define VTD_CONTEXT_ENTRY_SLPTPTR (~0xfffULL) 457 #define VTD_CONTEXT_ENTRY_RSVD_LO(aw) (0xff0ULL | ~VTD_HAW_MASK(aw)) 458 /* hi */ 459 #define VTD_CONTEXT_ENTRY_AW 7ULL /* Adjusted guest-address-width */ 460 #define VTD_CONTEXT_ENTRY_DID(val) (((val) >> 8) & VTD_DOMAIN_ID_MASK) 461 #define VTD_CONTEXT_ENTRY_RSVD_HI 0xffffffffff000080ULL 462 463 #define VTD_CONTEXT_ENTRY_NR (VTD_PAGE_SIZE / sizeof(VTDContextEntry)) 464 465 #define VTD_CTX_ENTRY_LEGACY_SIZE 16 466 #define VTD_CTX_ENTRY_SCALABLE_SIZE 32 467 468 #define VTD_SM_CONTEXT_ENTRY_RID2PASID_MASK 0xfffff 469 #define VTD_SM_CONTEXT_ENTRY_RSVD_VAL0(aw) (0x1e0ULL | ~VTD_HAW_MASK(aw)) 470 #define VTD_SM_CONTEXT_ENTRY_RSVD_VAL1 0xffffffffffe00000ULL 471 472 /* PASID Table Related Definitions */ 473 #define VTD_PASID_DIR_BASE_ADDR_MASK (~0xfffULL) 474 #define VTD_PASID_TABLE_BASE_ADDR_MASK (~0xfffULL) 475 #define VTD_PASID_DIR_ENTRY_SIZE 8 476 #define VTD_PASID_ENTRY_SIZE 64 477 #define VTD_PASID_DIR_BITS_MASK (0x3fffULL) 478 #define VTD_PASID_DIR_INDEX(pasid) (((pasid) >> 6) & VTD_PASID_DIR_BITS_MASK) 479 #define VTD_PASID_DIR_FPD (1ULL << 1) /* Fault Processing Disable */ 480 #define VTD_PASID_TABLE_BITS_MASK (0x3fULL) 481 #define VTD_PASID_TABLE_INDEX(pasid) ((pasid) & VTD_PASID_TABLE_BITS_MASK) 482 #define VTD_PASID_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */ 483 484 /* PASID Granular Translation Type Mask */ 485 #define VTD_PASID_ENTRY_P 1ULL 486 #define VTD_SM_PASID_ENTRY_PGTT (7ULL << 6) 487 #define VTD_SM_PASID_ENTRY_FLT (1ULL << 6) 488 #define VTD_SM_PASID_ENTRY_SLT (2ULL << 6) 489 #define VTD_SM_PASID_ENTRY_NESTED (3ULL << 6) 490 #define VTD_SM_PASID_ENTRY_PT (4ULL << 6) 491 492 #define VTD_SM_PASID_ENTRY_AW 7ULL /* Adjusted guest-address-width */ 493 #define VTD_SM_PASID_ENTRY_DID(val) ((val) & VTD_DOMAIN_ID_MASK) 494 495 /* Second Level Page Translation Pointer*/ 496 #define VTD_SM_PASID_ENTRY_SLPTPTR (~0xfffULL) 497 498 /* Paging Structure common */ 499 #define VTD_SL_PT_PAGE_SIZE_MASK (1ULL << 7) 500 /* Bits to decide the offset for each level */ 501 #define VTD_SL_LEVEL_BITS 9 502 503 /* Second Level Paging Structure */ 504 #define VTD_SL_PML4_LEVEL 4 505 #define VTD_SL_PDP_LEVEL 3 506 #define VTD_SL_PD_LEVEL 2 507 #define VTD_SL_PT_LEVEL 1 508 #define VTD_SL_PT_ENTRY_NR 512 509 510 /* Masks for Second Level Paging Entry */ 511 #define VTD_SL_RW_MASK 3ULL 512 #define VTD_SL_R 1ULL 513 #define VTD_SL_W (1ULL << 1) 514 #define VTD_SL_PT_BASE_ADDR_MASK(aw) (~(VTD_PAGE_SIZE - 1) & VTD_HAW_MASK(aw)) 515 #define VTD_SL_IGN_COM 0xbff0000000000000ULL 516 #define VTD_SL_TM (1ULL << 62) 517 518 #endif 519