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_SC (1ULL << 7) 192 #define VTD_ECAP_MHMV (15ULL << 20) 193 #define VTD_ECAP_SRS (1ULL << 31) 194 #define VTD_ECAP_SMTS (1ULL << 43) 195 #define VTD_ECAP_SLTS (1ULL << 46) 196 197 /* CAP_REG */ 198 /* (offset >> 4) << 24 */ 199 #define VTD_CAP_FRO (DMAR_FRCD_REG_OFFSET << 20) 200 #define VTD_CAP_NFR ((DMAR_FRCD_REG_NR - 1) << 40) 201 #define VTD_DOMAIN_ID_SHIFT 16 /* 16-bit domain id for 64K domains */ 202 #define VTD_DOMAIN_ID_MASK ((1UL << VTD_DOMAIN_ID_SHIFT) - 1) 203 #define VTD_CAP_ND (((VTD_DOMAIN_ID_SHIFT - 4) / 2) & 7ULL) 204 #define VTD_ADDRESS_SIZE(aw) (1ULL << (aw)) 205 #define VTD_CAP_MGAW(aw) ((((aw) - 1) & 0x3fULL) << 16) 206 #define VTD_MAMV 18ULL 207 #define VTD_CAP_MAMV (VTD_MAMV << 48) 208 #define VTD_CAP_PSI (1ULL << 39) 209 #define VTD_CAP_SLLPS ((1ULL << 34) | (1ULL << 35)) 210 #define VTD_CAP_DRAIN_WRITE (1ULL << 54) 211 #define VTD_CAP_DRAIN_READ (1ULL << 55) 212 #define VTD_CAP_DRAIN (VTD_CAP_DRAIN_READ | VTD_CAP_DRAIN_WRITE) 213 #define VTD_CAP_CM (1ULL << 7) 214 215 /* Supported Adjusted Guest Address Widths */ 216 #define VTD_CAP_SAGAW_SHIFT 8 217 #define VTD_CAP_SAGAW_MASK (0x1fULL << VTD_CAP_SAGAW_SHIFT) 218 /* 39-bit AGAW, 3-level page-table */ 219 #define VTD_CAP_SAGAW_39bit (0x2ULL << VTD_CAP_SAGAW_SHIFT) 220 /* 48-bit AGAW, 4-level page-table */ 221 #define VTD_CAP_SAGAW_48bit (0x4ULL << VTD_CAP_SAGAW_SHIFT) 222 223 /* IQT_REG */ 224 #define VTD_IQT_QT(dw_bit, val) (dw_bit ? (((val) >> 5) & 0x3fffULL) : \ 225 (((val) >> 4) & 0x7fffULL)) 226 #define VTD_IQT_QT_256_RSV_BIT 0x10 227 228 /* IQA_REG */ 229 #define VTD_IQA_IQA_MASK(aw) (VTD_HAW_MASK(aw) ^ 0xfffULL) 230 #define VTD_IQA_QS 0x7ULL 231 #define VTD_IQA_DW_MASK 0x800 232 233 /* IQH_REG */ 234 #define VTD_IQH_QH_SHIFT_4 4 235 #define VTD_IQH_QH_SHIFT_5 5 236 #define VTD_IQH_QH_MASK 0x7fff0ULL 237 238 /* ICS_REG */ 239 #define VTD_ICS_IWC 1UL 240 241 /* IECTL_REG */ 242 #define VTD_IECTL_IM (1UL << 31) 243 #define VTD_IECTL_IP (1UL << 30) 244 245 /* FSTS_REG */ 246 #define VTD_FSTS_FRI_MASK 0xff00UL 247 #define VTD_FSTS_FRI(val) ((((uint32_t)(val)) << 8) & VTD_FSTS_FRI_MASK) 248 #define VTD_FSTS_IQE (1UL << 4) 249 #define VTD_FSTS_PPF (1UL << 1) 250 #define VTD_FSTS_PFO 1UL 251 252 /* FECTL_REG */ 253 #define VTD_FECTL_IM (1UL << 31) 254 #define VTD_FECTL_IP (1UL << 30) 255 256 /* Fault Recording Register */ 257 /* For the high 64-bit of 128-bit */ 258 #define VTD_FRCD_F (1ULL << 63) 259 #define VTD_FRCD_T (1ULL << 62) 260 #define VTD_FRCD_FR(val) (((val) & 0xffULL) << 32) 261 #define VTD_FRCD_SID_MASK 0xffffULL 262 #define VTD_FRCD_SID(val) ((val) & VTD_FRCD_SID_MASK) 263 /* For the low 64-bit of 128-bit */ 264 #define VTD_FRCD_FI(val) ((val) & ~0xfffULL) 265 266 /* DMA Remapping Fault Conditions */ 267 typedef enum VTDFaultReason { 268 VTD_FR_RESERVED = 0, /* Reserved for Advanced Fault logging */ 269 VTD_FR_ROOT_ENTRY_P = 1, /* The Present(P) field of root-entry is 0 */ 270 VTD_FR_CONTEXT_ENTRY_P, /* The Present(P) field of context-entry is 0 */ 271 VTD_FR_CONTEXT_ENTRY_INV, /* Invalid programming of a context-entry */ 272 VTD_FR_ADDR_BEYOND_MGAW, /* Input-address above (2^x-1) */ 273 VTD_FR_WRITE, /* No write permission */ 274 VTD_FR_READ, /* No read permission */ 275 /* Fail to access a second-level paging entry (not SL_PML4E) */ 276 VTD_FR_PAGING_ENTRY_INV, 277 VTD_FR_ROOT_TABLE_INV, /* Fail to access a root-entry */ 278 VTD_FR_CONTEXT_TABLE_INV, /* Fail to access a context-entry */ 279 /* Non-zero reserved field in a present root-entry */ 280 VTD_FR_ROOT_ENTRY_RSVD, 281 /* Non-zero reserved field in a present context-entry */ 282 VTD_FR_CONTEXT_ENTRY_RSVD, 283 /* Non-zero reserved field in a second-level paging entry with at lease one 284 * Read(R) and Write(W) or Execute(E) field is Set. 285 */ 286 VTD_FR_PAGING_ENTRY_RSVD, 287 /* Translation request or translated request explicitly blocked dut to the 288 * programming of the Translation Type (T) field in the present 289 * context-entry. 290 */ 291 VTD_FR_CONTEXT_ENTRY_TT, 292 293 /* Interrupt remapping transition faults */ 294 VTD_FR_IR_REQ_RSVD = 0x20, /* One or more IR request reserved 295 * fields set */ 296 VTD_FR_IR_INDEX_OVER = 0x21, /* Index value greater than max */ 297 VTD_FR_IR_ENTRY_P = 0x22, /* Present (P) not set in IRTE */ 298 VTD_FR_IR_ROOT_INVAL = 0x23, /* IR Root table invalid */ 299 VTD_FR_IR_IRTE_RSVD = 0x24, /* IRTE Rsvd field non-zero with 300 * Present flag set */ 301 VTD_FR_IR_REQ_COMPAT = 0x25, /* Encountered compatible IR 302 * request while disabled */ 303 VTD_FR_IR_SID_ERR = 0x26, /* Invalid Source-ID */ 304 305 VTD_FR_PASID_TABLE_INV = 0x58, /*Invalid PASID table entry */ 306 307 /* This is not a normal fault reason. We use this to indicate some faults 308 * that are not referenced by the VT-d specification. 309 * Fault event with such reason should not be recorded. 310 */ 311 VTD_FR_RESERVED_ERR, 312 VTD_FR_MAX, /* Guard */ 313 } VTDFaultReason; 314 315 #define VTD_CONTEXT_CACHE_GEN_MAX 0xffffffffUL 316 317 /* Interrupt Entry Cache Invalidation Descriptor: VT-d 6.5.2.7. */ 318 struct VTDInvDescIEC { 319 uint32_t type:4; /* Should always be 0x4 */ 320 uint32_t granularity:1; /* If set, it's global IR invalidation */ 321 uint32_t resved_1:22; 322 uint32_t index_mask:5; /* 2^N for continuous int invalidation */ 323 uint32_t index:16; /* Start index to invalidate */ 324 uint32_t reserved_2:16; 325 }; 326 typedef struct VTDInvDescIEC VTDInvDescIEC; 327 328 /* Queued Invalidation Descriptor */ 329 union VTDInvDesc { 330 struct { 331 uint64_t lo; 332 uint64_t hi; 333 }; 334 struct { 335 uint64_t val[4]; 336 }; 337 union { 338 VTDInvDescIEC iec; 339 }; 340 }; 341 typedef union VTDInvDesc VTDInvDesc; 342 343 /* Masks for struct VTDInvDesc */ 344 #define VTD_INV_DESC_TYPE 0xf 345 #define VTD_INV_DESC_CC 0x1 /* Context-cache Invalidate Desc */ 346 #define VTD_INV_DESC_IOTLB 0x2 347 #define VTD_INV_DESC_DEVICE 0x3 348 #define VTD_INV_DESC_IEC 0x4 /* Interrupt Entry Cache 349 Invalidate Descriptor */ 350 #define VTD_INV_DESC_WAIT 0x5 /* Invalidation Wait Descriptor */ 351 #define VTD_INV_DESC_PIOTLB 0x6 /* PASID-IOTLB Invalidate Desc */ 352 #define VTD_INV_DESC_PC 0x7 /* PASID-cache Invalidate Desc */ 353 #define VTD_INV_DESC_NONE 0 /* Not an Invalidate Descriptor */ 354 355 /* Masks for Invalidation Wait Descriptor*/ 356 #define VTD_INV_DESC_WAIT_SW (1ULL << 5) 357 #define VTD_INV_DESC_WAIT_IF (1ULL << 4) 358 #define VTD_INV_DESC_WAIT_FN (1ULL << 6) 359 #define VTD_INV_DESC_WAIT_DATA_SHIFT 32 360 #define VTD_INV_DESC_WAIT_RSVD_LO 0Xffffff80ULL 361 #define VTD_INV_DESC_WAIT_RSVD_HI 3ULL 362 363 /* Masks for Context-cache Invalidation Descriptor */ 364 #define VTD_INV_DESC_CC_G (3ULL << 4) 365 #define VTD_INV_DESC_CC_GLOBAL (1ULL << 4) 366 #define VTD_INV_DESC_CC_DOMAIN (2ULL << 4) 367 #define VTD_INV_DESC_CC_DEVICE (3ULL << 4) 368 #define VTD_INV_DESC_CC_DID(val) (((val) >> 16) & VTD_DOMAIN_ID_MASK) 369 #define VTD_INV_DESC_CC_SID(val) (((val) >> 32) & 0xffffUL) 370 #define VTD_INV_DESC_CC_FM(val) (((val) >> 48) & 3UL) 371 #define VTD_INV_DESC_CC_RSVD 0xfffc00000000ffc0ULL 372 373 /* Masks for IOTLB Invalidate Descriptor */ 374 #define VTD_INV_DESC_IOTLB_G (3ULL << 4) 375 #define VTD_INV_DESC_IOTLB_GLOBAL (1ULL << 4) 376 #define VTD_INV_DESC_IOTLB_DOMAIN (2ULL << 4) 377 #define VTD_INV_DESC_IOTLB_PAGE (3ULL << 4) 378 #define VTD_INV_DESC_IOTLB_DID(val) (((val) >> 16) & VTD_DOMAIN_ID_MASK) 379 #define VTD_INV_DESC_IOTLB_ADDR(val) ((val) & ~0xfffULL) 380 #define VTD_INV_DESC_IOTLB_AM(val) ((val) & 0x3fULL) 381 #define VTD_INV_DESC_IOTLB_RSVD_LO 0xffffffff0000ff00ULL 382 #define VTD_INV_DESC_IOTLB_RSVD_HI 0xf80ULL 383 384 /* Mask for Device IOTLB Invalidate Descriptor */ 385 #define VTD_INV_DESC_DEVICE_IOTLB_ADDR(val) ((val) & 0xfffffffffffff000ULL) 386 #define VTD_INV_DESC_DEVICE_IOTLB_SIZE(val) ((val) & 0x1) 387 #define VTD_INV_DESC_DEVICE_IOTLB_SID(val) (((val) >> 32) & 0xFFFFULL) 388 #define VTD_INV_DESC_DEVICE_IOTLB_RSVD_HI 0xffeULL 389 #define VTD_INV_DESC_DEVICE_IOTLB_RSVD_LO 0xffff0000ffe0fff8 390 391 /* Rsvd field masks for spte */ 392 #define VTD_SPTE_SNP 0x800ULL 393 394 #define VTD_SPTE_PAGE_L1_RSVD_MASK(aw, dt_supported) \ 395 dt_supported ? \ 396 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM | VTD_SL_TM)) : \ 397 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 398 #define VTD_SPTE_PAGE_L2_RSVD_MASK(aw) \ 399 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 400 #define VTD_SPTE_PAGE_L3_RSVD_MASK(aw) \ 401 (0x800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 402 #define VTD_SPTE_PAGE_L4_RSVD_MASK(aw) \ 403 (0x880ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 404 405 #define VTD_SPTE_LPAGE_L2_RSVD_MASK(aw, dt_supported) \ 406 dt_supported ? \ 407 (0x1ff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM | VTD_SL_TM)) : \ 408 (0x1ff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 409 #define VTD_SPTE_LPAGE_L3_RSVD_MASK(aw, dt_supported) \ 410 dt_supported ? \ 411 (0x3ffff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM | VTD_SL_TM)) : \ 412 (0x3ffff800ULL | ~(VTD_HAW_MASK(aw) | VTD_SL_IGN_COM)) 413 414 /* Information about page-selective IOTLB invalidate */ 415 struct VTDIOTLBPageInvInfo { 416 uint16_t domain_id; 417 uint64_t addr; 418 uint8_t mask; 419 }; 420 typedef struct VTDIOTLBPageInvInfo VTDIOTLBPageInvInfo; 421 422 /* Pagesize of VTD paging structures, including root and context tables */ 423 #define VTD_PAGE_SHIFT 12 424 #define VTD_PAGE_SIZE (1ULL << VTD_PAGE_SHIFT) 425 426 #define VTD_PAGE_SHIFT_4K 12 427 #define VTD_PAGE_MASK_4K (~((1ULL << VTD_PAGE_SHIFT_4K) - 1)) 428 #define VTD_PAGE_SHIFT_2M 21 429 #define VTD_PAGE_MASK_2M (~((1ULL << VTD_PAGE_SHIFT_2M) - 1)) 430 #define VTD_PAGE_SHIFT_1G 30 431 #define VTD_PAGE_MASK_1G (~((1ULL << VTD_PAGE_SHIFT_1G) - 1)) 432 433 struct VTDRootEntry { 434 uint64_t lo; 435 uint64_t hi; 436 }; 437 typedef struct VTDRootEntry VTDRootEntry; 438 439 /* Masks for struct VTDRootEntry */ 440 #define VTD_ROOT_ENTRY_P 1ULL 441 #define VTD_ROOT_ENTRY_CTP (~0xfffULL) 442 443 #define VTD_ROOT_ENTRY_NR (VTD_PAGE_SIZE / sizeof(VTDRootEntry)) 444 #define VTD_ROOT_ENTRY_RSVD(aw) (0xffeULL | ~VTD_HAW_MASK(aw)) 445 446 #define VTD_DEVFN_CHECK_MASK 0x80 447 448 /* Masks for struct VTDContextEntry */ 449 /* lo */ 450 #define VTD_CONTEXT_ENTRY_P (1ULL << 0) 451 #define VTD_CONTEXT_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */ 452 #define VTD_CONTEXT_ENTRY_TT (3ULL << 2) /* Translation Type */ 453 #define VTD_CONTEXT_TT_MULTI_LEVEL 0 454 #define VTD_CONTEXT_TT_DEV_IOTLB (1ULL << 2) 455 #define VTD_CONTEXT_TT_PASS_THROUGH (2ULL << 2) 456 /* Second Level Page Translation Pointer*/ 457 #define VTD_CONTEXT_ENTRY_SLPTPTR (~0xfffULL) 458 #define VTD_CONTEXT_ENTRY_RSVD_LO(aw) (0xff0ULL | ~VTD_HAW_MASK(aw)) 459 /* hi */ 460 #define VTD_CONTEXT_ENTRY_AW 7ULL /* Adjusted guest-address-width */ 461 #define VTD_CONTEXT_ENTRY_DID(val) (((val) >> 8) & VTD_DOMAIN_ID_MASK) 462 #define VTD_CONTEXT_ENTRY_RSVD_HI 0xffffffffff000080ULL 463 464 #define VTD_CONTEXT_ENTRY_NR (VTD_PAGE_SIZE / sizeof(VTDContextEntry)) 465 466 #define VTD_CTX_ENTRY_LEGACY_SIZE 16 467 #define VTD_CTX_ENTRY_SCALABLE_SIZE 32 468 469 #define VTD_SM_CONTEXT_ENTRY_RID2PASID_MASK 0xfffff 470 #define VTD_SM_CONTEXT_ENTRY_RSVD_VAL0(aw) (0x1e0ULL | ~VTD_HAW_MASK(aw)) 471 #define VTD_SM_CONTEXT_ENTRY_RSVD_VAL1 0xffffffffffe00000ULL 472 473 /* PASID Table Related Definitions */ 474 #define VTD_PASID_DIR_BASE_ADDR_MASK (~0xfffULL) 475 #define VTD_PASID_TABLE_BASE_ADDR_MASK (~0xfffULL) 476 #define VTD_PASID_DIR_ENTRY_SIZE 8 477 #define VTD_PASID_ENTRY_SIZE 64 478 #define VTD_PASID_DIR_BITS_MASK (0x3fffULL) 479 #define VTD_PASID_DIR_INDEX(pasid) (((pasid) >> 6) & VTD_PASID_DIR_BITS_MASK) 480 #define VTD_PASID_DIR_FPD (1ULL << 1) /* Fault Processing Disable */ 481 #define VTD_PASID_TABLE_BITS_MASK (0x3fULL) 482 #define VTD_PASID_TABLE_INDEX(pasid) ((pasid) & VTD_PASID_TABLE_BITS_MASK) 483 #define VTD_PASID_ENTRY_FPD (1ULL << 1) /* Fault Processing Disable */ 484 485 /* PASID Granular Translation Type Mask */ 486 #define VTD_PASID_ENTRY_P 1ULL 487 #define VTD_SM_PASID_ENTRY_PGTT (7ULL << 6) 488 #define VTD_SM_PASID_ENTRY_FLT (1ULL << 6) 489 #define VTD_SM_PASID_ENTRY_SLT (2ULL << 6) 490 #define VTD_SM_PASID_ENTRY_NESTED (3ULL << 6) 491 #define VTD_SM_PASID_ENTRY_PT (4ULL << 6) 492 493 #define VTD_SM_PASID_ENTRY_AW 7ULL /* Adjusted guest-address-width */ 494 #define VTD_SM_PASID_ENTRY_DID(val) ((val) & VTD_DOMAIN_ID_MASK) 495 496 /* Second Level Page Translation Pointer*/ 497 #define VTD_SM_PASID_ENTRY_SLPTPTR (~0xfffULL) 498 499 /* Paging Structure common */ 500 #define VTD_SL_PT_PAGE_SIZE_MASK (1ULL << 7) 501 /* Bits to decide the offset for each level */ 502 #define VTD_SL_LEVEL_BITS 9 503 504 /* Second Level Paging Structure */ 505 #define VTD_SL_PML4_LEVEL 4 506 #define VTD_SL_PDP_LEVEL 3 507 #define VTD_SL_PD_LEVEL 2 508 #define VTD_SL_PT_LEVEL 1 509 #define VTD_SL_PT_ENTRY_NR 512 510 511 /* Masks for Second Level Paging Entry */ 512 #define VTD_SL_RW_MASK 3ULL 513 #define VTD_SL_R 1ULL 514 #define VTD_SL_W (1ULL << 1) 515 #define VTD_SL_PT_BASE_ADDR_MASK(aw) (~(VTD_PAGE_SIZE - 1) & VTD_HAW_MASK(aw)) 516 #define VTD_SL_IGN_COM 0xbff0000000000000ULL 517 #define VTD_SL_TM (1ULL << 62) 518 519 #endif 520