1 /* 2 * ARM GICv3 support - internal interfaces 3 * 4 * Copyright (c) 2012 Linaro Limited 5 * Copyright (c) 2015 Huawei. 6 * Copyright (c) 2015 Samsung Electronics Co., Ltd. 7 * Written by Peter Maydell 8 * Reworked for GICv3 by Shlomo Pongratz and Pavel Fedin 9 * 10 * This program is free software; you can redistribute it and/or modify 11 * it under the terms of the GNU General Public License as published by 12 * the Free Software Foundation, either version 2 of the License, or 13 * (at your option) any later version. 14 * 15 * This program is distributed in the hope that it will be useful, 16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 * GNU General Public License for more details. 19 * 20 * You should have received a copy of the GNU General Public License along 21 * with this program; if not, see <http://www.gnu.org/licenses/>. 22 */ 23 24 #ifndef QEMU_ARM_GICV3_INTERNAL_H 25 #define QEMU_ARM_GICV3_INTERNAL_H 26 27 #include "hw/registerfields.h" 28 #include "hw/intc/arm_gicv3_common.h" 29 30 /* Distributor registers, as offsets from the distributor base address */ 31 #define GICD_CTLR 0x0000 32 #define GICD_TYPER 0x0004 33 #define GICD_IIDR 0x0008 34 #define GICD_STATUSR 0x0010 35 #define GICD_SETSPI_NSR 0x0040 36 #define GICD_CLRSPI_NSR 0x0048 37 #define GICD_SETSPI_SR 0x0050 38 #define GICD_CLRSPI_SR 0x0058 39 #define GICD_SEIR 0x0068 40 #define GICD_IGROUPR 0x0080 41 #define GICD_ISENABLER 0x0100 42 #define GICD_ICENABLER 0x0180 43 #define GICD_ISPENDR 0x0200 44 #define GICD_ICPENDR 0x0280 45 #define GICD_ISACTIVER 0x0300 46 #define GICD_ICACTIVER 0x0380 47 #define GICD_IPRIORITYR 0x0400 48 #define GICD_ITARGETSR 0x0800 49 #define GICD_ICFGR 0x0C00 50 #define GICD_IGRPMODR 0x0D00 51 #define GICD_NSACR 0x0E00 52 #define GICD_SGIR 0x0F00 53 #define GICD_CPENDSGIR 0x0F10 54 #define GICD_SPENDSGIR 0x0F20 55 #define GICD_IROUTER 0x6000 56 #define GICD_IDREGS 0xFFD0 57 58 /* GICD_CTLR fields */ 59 #define GICD_CTLR_EN_GRP0 (1U << 0) 60 #define GICD_CTLR_EN_GRP1NS (1U << 1) /* GICv3 5.3.20 */ 61 #define GICD_CTLR_EN_GRP1S (1U << 2) 62 #define GICD_CTLR_EN_GRP1_ALL (GICD_CTLR_EN_GRP1NS | GICD_CTLR_EN_GRP1S) 63 /* Bit 4 is ARE if the system doesn't support TrustZone, ARE_S otherwise */ 64 #define GICD_CTLR_ARE (1U << 4) 65 #define GICD_CTLR_ARE_S (1U << 4) 66 #define GICD_CTLR_ARE_NS (1U << 5) 67 #define GICD_CTLR_DS (1U << 6) 68 #define GICD_CTLR_E1NWF (1U << 7) 69 #define GICD_CTLR_RWP (1U << 31) 70 71 #define GICD_TYPER_LPIS_SHIFT 17 72 73 /* 16 bits EventId */ 74 #define GICD_TYPER_IDBITS 0xf 75 76 /* 77 * Redistributor frame offsets from RD_base 78 */ 79 #define GICR_SGI_OFFSET 0x10000 80 81 /* 82 * Redistributor registers, offsets from RD_base 83 */ 84 #define GICR_CTLR 0x0000 85 #define GICR_IIDR 0x0004 86 #define GICR_TYPER 0x0008 87 #define GICR_STATUSR 0x0010 88 #define GICR_WAKER 0x0014 89 #define GICR_SETLPIR 0x0040 90 #define GICR_CLRLPIR 0x0048 91 #define GICR_PROPBASER 0x0070 92 #define GICR_PENDBASER 0x0078 93 #define GICR_INVLPIR 0x00A0 94 #define GICR_INVALLR 0x00B0 95 #define GICR_SYNCR 0x00C0 96 #define GICR_IDREGS 0xFFD0 97 98 /* SGI and PPI Redistributor registers, offsets from RD_base */ 99 #define GICR_IGROUPR0 (GICR_SGI_OFFSET + 0x0080) 100 #define GICR_ISENABLER0 (GICR_SGI_OFFSET + 0x0100) 101 #define GICR_ICENABLER0 (GICR_SGI_OFFSET + 0x0180) 102 #define GICR_ISPENDR0 (GICR_SGI_OFFSET + 0x0200) 103 #define GICR_ICPENDR0 (GICR_SGI_OFFSET + 0x0280) 104 #define GICR_ISACTIVER0 (GICR_SGI_OFFSET + 0x0300) 105 #define GICR_ICACTIVER0 (GICR_SGI_OFFSET + 0x0380) 106 #define GICR_IPRIORITYR (GICR_SGI_OFFSET + 0x0400) 107 #define GICR_ICFGR0 (GICR_SGI_OFFSET + 0x0C00) 108 #define GICR_ICFGR1 (GICR_SGI_OFFSET + 0x0C04) 109 #define GICR_IGRPMODR0 (GICR_SGI_OFFSET + 0x0D00) 110 #define GICR_NSACR (GICR_SGI_OFFSET + 0x0E00) 111 112 #define GICR_CTLR_ENABLE_LPIS (1U << 0) 113 #define GICR_CTLR_RWP (1U << 3) 114 #define GICR_CTLR_DPG0 (1U << 24) 115 #define GICR_CTLR_DPG1NS (1U << 25) 116 #define GICR_CTLR_DPG1S (1U << 26) 117 #define GICR_CTLR_UWP (1U << 31) 118 119 #define GICR_TYPER_PLPIS (1U << 0) 120 #define GICR_TYPER_VLPIS (1U << 1) 121 #define GICR_TYPER_DIRECTLPI (1U << 3) 122 #define GICR_TYPER_LAST (1U << 4) 123 #define GICR_TYPER_DPGS (1U << 5) 124 #define GICR_TYPER_PROCNUM (0xFFFFU << 8) 125 #define GICR_TYPER_COMMONLPIAFF (0x3 << 24) 126 #define GICR_TYPER_AFFINITYVALUE (0xFFFFFFFFULL << 32) 127 128 #define GICR_WAKER_ProcessorSleep (1U << 1) 129 #define GICR_WAKER_ChildrenAsleep (1U << 2) 130 131 FIELD(GICR_PROPBASER, IDBITS, 0, 5) 132 FIELD(GICR_PROPBASER, INNERCACHE, 7, 3) 133 FIELD(GICR_PROPBASER, SHAREABILITY, 10, 2) 134 FIELD(GICR_PROPBASER, PHYADDR, 12, 40) 135 FIELD(GICR_PROPBASER, OUTERCACHE, 56, 3) 136 137 FIELD(GICR_PENDBASER, INNERCACHE, 7, 3) 138 FIELD(GICR_PENDBASER, SHAREABILITY, 10, 2) 139 FIELD(GICR_PENDBASER, PHYADDR, 16, 36) 140 FIELD(GICR_PENDBASER, OUTERCACHE, 56, 3) 141 FIELD(GICR_PENDBASER, PTZ, 62, 1) 142 143 #define GICR_PROPBASER_IDBITS_THRESHOLD 0xd 144 145 #define ICC_CTLR_EL1_CBPR (1U << 0) 146 #define ICC_CTLR_EL1_EOIMODE (1U << 1) 147 #define ICC_CTLR_EL1_PMHE (1U << 6) 148 #define ICC_CTLR_EL1_PRIBITS_SHIFT 8 149 #define ICC_CTLR_EL1_PRIBITS_MASK (7U << ICC_CTLR_EL1_PRIBITS_SHIFT) 150 #define ICC_CTLR_EL1_IDBITS_SHIFT 11 151 #define ICC_CTLR_EL1_SEIS (1U << 14) 152 #define ICC_CTLR_EL1_A3V (1U << 15) 153 154 #define ICC_PMR_PRIORITY_MASK 0xff 155 #define ICC_BPR_BINARYPOINT_MASK 0x07 156 #define ICC_IGRPEN_ENABLE 0x01 157 158 #define ICC_CTLR_EL3_CBPR_EL1S (1U << 0) 159 #define ICC_CTLR_EL3_CBPR_EL1NS (1U << 1) 160 #define ICC_CTLR_EL3_EOIMODE_EL3 (1U << 2) 161 #define ICC_CTLR_EL3_EOIMODE_EL1S (1U << 3) 162 #define ICC_CTLR_EL3_EOIMODE_EL1NS (1U << 4) 163 #define ICC_CTLR_EL3_RM (1U << 5) 164 #define ICC_CTLR_EL3_PMHE (1U << 6) 165 #define ICC_CTLR_EL3_PRIBITS_SHIFT 8 166 #define ICC_CTLR_EL3_IDBITS_SHIFT 11 167 #define ICC_CTLR_EL3_SEIS (1U << 14) 168 #define ICC_CTLR_EL3_A3V (1U << 15) 169 #define ICC_CTLR_EL3_NDS (1U << 17) 170 171 #define ICH_VMCR_EL2_VENG0_SHIFT 0 172 #define ICH_VMCR_EL2_VENG0 (1U << ICH_VMCR_EL2_VENG0_SHIFT) 173 #define ICH_VMCR_EL2_VENG1_SHIFT 1 174 #define ICH_VMCR_EL2_VENG1 (1U << ICH_VMCR_EL2_VENG1_SHIFT) 175 #define ICH_VMCR_EL2_VACKCTL (1U << 2) 176 #define ICH_VMCR_EL2_VFIQEN (1U << 3) 177 #define ICH_VMCR_EL2_VCBPR_SHIFT 4 178 #define ICH_VMCR_EL2_VCBPR (1U << ICH_VMCR_EL2_VCBPR_SHIFT) 179 #define ICH_VMCR_EL2_VEOIM_SHIFT 9 180 #define ICH_VMCR_EL2_VEOIM (1U << ICH_VMCR_EL2_VEOIM_SHIFT) 181 #define ICH_VMCR_EL2_VBPR1_SHIFT 18 182 #define ICH_VMCR_EL2_VBPR1_LENGTH 3 183 #define ICH_VMCR_EL2_VBPR1_MASK (0x7U << ICH_VMCR_EL2_VBPR1_SHIFT) 184 #define ICH_VMCR_EL2_VBPR0_SHIFT 21 185 #define ICH_VMCR_EL2_VBPR0_LENGTH 3 186 #define ICH_VMCR_EL2_VBPR0_MASK (0x7U << ICH_VMCR_EL2_VBPR0_SHIFT) 187 #define ICH_VMCR_EL2_VPMR_SHIFT 24 188 #define ICH_VMCR_EL2_VPMR_LENGTH 8 189 #define ICH_VMCR_EL2_VPMR_MASK (0xffU << ICH_VMCR_EL2_VPMR_SHIFT) 190 191 #define ICH_HCR_EL2_EN (1U << 0) 192 #define ICH_HCR_EL2_UIE (1U << 1) 193 #define ICH_HCR_EL2_LRENPIE (1U << 2) 194 #define ICH_HCR_EL2_NPIE (1U << 3) 195 #define ICH_HCR_EL2_VGRP0EIE (1U << 4) 196 #define ICH_HCR_EL2_VGRP0DIE (1U << 5) 197 #define ICH_HCR_EL2_VGRP1EIE (1U << 6) 198 #define ICH_HCR_EL2_VGRP1DIE (1U << 7) 199 #define ICH_HCR_EL2_TC (1U << 10) 200 #define ICH_HCR_EL2_TALL0 (1U << 11) 201 #define ICH_HCR_EL2_TALL1 (1U << 12) 202 #define ICH_HCR_EL2_TSEI (1U << 13) 203 #define ICH_HCR_EL2_TDIR (1U << 14) 204 #define ICH_HCR_EL2_EOICOUNT_SHIFT 27 205 #define ICH_HCR_EL2_EOICOUNT_LENGTH 5 206 #define ICH_HCR_EL2_EOICOUNT_MASK (0x1fU << ICH_HCR_EL2_EOICOUNT_SHIFT) 207 208 #define ICH_LR_EL2_VINTID_SHIFT 0 209 #define ICH_LR_EL2_VINTID_LENGTH 32 210 #define ICH_LR_EL2_VINTID_MASK (0xffffffffULL << ICH_LR_EL2_VINTID_SHIFT) 211 #define ICH_LR_EL2_PINTID_SHIFT 32 212 #define ICH_LR_EL2_PINTID_LENGTH 10 213 #define ICH_LR_EL2_PINTID_MASK (0x3ffULL << ICH_LR_EL2_PINTID_SHIFT) 214 /* Note that EOI shares with the top bit of the pINTID field */ 215 #define ICH_LR_EL2_EOI (1ULL << 41) 216 #define ICH_LR_EL2_PRIORITY_SHIFT 48 217 #define ICH_LR_EL2_PRIORITY_LENGTH 8 218 #define ICH_LR_EL2_PRIORITY_MASK (0xffULL << ICH_LR_EL2_PRIORITY_SHIFT) 219 #define ICH_LR_EL2_GROUP (1ULL << 60) 220 #define ICH_LR_EL2_HW (1ULL << 61) 221 #define ICH_LR_EL2_STATE_SHIFT 62 222 #define ICH_LR_EL2_STATE_LENGTH 2 223 #define ICH_LR_EL2_STATE_MASK (3ULL << ICH_LR_EL2_STATE_SHIFT) 224 /* values for the state field: */ 225 #define ICH_LR_EL2_STATE_INVALID 0 226 #define ICH_LR_EL2_STATE_PENDING 1 227 #define ICH_LR_EL2_STATE_ACTIVE 2 228 #define ICH_LR_EL2_STATE_ACTIVE_PENDING 3 229 #define ICH_LR_EL2_STATE_PENDING_BIT (1ULL << ICH_LR_EL2_STATE_SHIFT) 230 #define ICH_LR_EL2_STATE_ACTIVE_BIT (2ULL << ICH_LR_EL2_STATE_SHIFT) 231 232 #define ICH_MISR_EL2_EOI (1U << 0) 233 #define ICH_MISR_EL2_U (1U << 1) 234 #define ICH_MISR_EL2_LRENP (1U << 2) 235 #define ICH_MISR_EL2_NP (1U << 3) 236 #define ICH_MISR_EL2_VGRP0E (1U << 4) 237 #define ICH_MISR_EL2_VGRP0D (1U << 5) 238 #define ICH_MISR_EL2_VGRP1E (1U << 6) 239 #define ICH_MISR_EL2_VGRP1D (1U << 7) 240 241 #define ICH_VTR_EL2_LISTREGS_SHIFT 0 242 #define ICH_VTR_EL2_TDS (1U << 19) 243 #define ICH_VTR_EL2_NV4 (1U << 20) 244 #define ICH_VTR_EL2_A3V (1U << 21) 245 #define ICH_VTR_EL2_SEIS (1U << 22) 246 #define ICH_VTR_EL2_IDBITS_SHIFT 23 247 #define ICH_VTR_EL2_PREBITS_SHIFT 26 248 #define ICH_VTR_EL2_PRIBITS_SHIFT 29 249 250 /* ITS Registers */ 251 252 FIELD(GITS_BASER, SIZE, 0, 8) 253 FIELD(GITS_BASER, PAGESIZE, 8, 2) 254 FIELD(GITS_BASER, SHAREABILITY, 10, 2) 255 FIELD(GITS_BASER, PHYADDR, 12, 36) 256 FIELD(GITS_BASER, PHYADDRL_64K, 16, 32) 257 FIELD(GITS_BASER, PHYADDRH_64K, 12, 4) 258 FIELD(GITS_BASER, ENTRYSIZE, 48, 5) 259 FIELD(GITS_BASER, OUTERCACHE, 53, 3) 260 FIELD(GITS_BASER, TYPE, 56, 3) 261 FIELD(GITS_BASER, INNERCACHE, 59, 3) 262 FIELD(GITS_BASER, INDIRECT, 62, 1) 263 FIELD(GITS_BASER, VALID, 63, 1) 264 265 FIELD(GITS_CBASER, SIZE, 0, 8) 266 FIELD(GITS_CBASER, SHAREABILITY, 10, 2) 267 FIELD(GITS_CBASER, PHYADDR, 12, 40) 268 FIELD(GITS_CBASER, OUTERCACHE, 53, 3) 269 FIELD(GITS_CBASER, INNERCACHE, 59, 3) 270 FIELD(GITS_CBASER, VALID, 63, 1) 271 272 FIELD(GITS_CREADR, STALLED, 0, 1) 273 FIELD(GITS_CREADR, OFFSET, 5, 15) 274 275 FIELD(GITS_CWRITER, RETRY, 0, 1) 276 FIELD(GITS_CWRITER, OFFSET, 5, 15) 277 278 FIELD(GITS_CTLR, ENABLED, 0, 1) 279 FIELD(GITS_CTLR, QUIESCENT, 31, 1) 280 281 FIELD(GITS_TYPER, PHYSICAL, 0, 1) 282 FIELD(GITS_TYPER, ITT_ENTRY_SIZE, 4, 4) 283 FIELD(GITS_TYPER, IDBITS, 8, 5) 284 FIELD(GITS_TYPER, DEVBITS, 13, 5) 285 FIELD(GITS_TYPER, SEIS, 18, 1) 286 FIELD(GITS_TYPER, PTA, 19, 1) 287 FIELD(GITS_TYPER, CIDBITS, 32, 4) 288 FIELD(GITS_TYPER, CIL, 36, 1) 289 290 #define GITS_IDREGS 0xFFD0 291 292 #define GITS_BASER_RO_MASK (R_GITS_BASER_ENTRYSIZE_MASK | \ 293 R_GITS_BASER_TYPE_MASK) 294 295 #define GITS_BASER_PAGESIZE_4K 0 296 #define GITS_BASER_PAGESIZE_16K 1 297 #define GITS_BASER_PAGESIZE_64K 2 298 299 #define GITS_BASER_TYPE_DEVICE 1ULL 300 #define GITS_BASER_TYPE_COLLECTION 4ULL 301 302 #define GITS_PAGE_SIZE_4K 0x1000 303 #define GITS_PAGE_SIZE_16K 0x4000 304 #define GITS_PAGE_SIZE_64K 0x10000 305 306 #define L1TABLE_ENTRY_SIZE 8 307 308 #define LPI_CTE_ENABLED TABLE_ENTRY_VALID_MASK 309 #define LPI_PRIORITY_MASK 0xfc 310 311 #define GITS_CMDQ_ENTRY_SIZE 32 312 #define NUM_BYTES_IN_DW 8 313 314 #define CMD_MASK 0xff 315 316 /* ITS Commands */ 317 #define GITS_CMD_CLEAR 0x04 318 #define GITS_CMD_DISCARD 0x0F 319 #define GITS_CMD_INT 0x03 320 #define GITS_CMD_MAPC 0x09 321 #define GITS_CMD_MAPD 0x08 322 #define GITS_CMD_MAPI 0x0B 323 #define GITS_CMD_MAPTI 0x0A 324 #define GITS_CMD_INV 0x0C 325 #define GITS_CMD_INVALL 0x0D 326 #define GITS_CMD_SYNC 0x05 327 328 /* MAPC command fields */ 329 #define ICID_LENGTH 16 330 #define ICID_MASK ((1U << ICID_LENGTH) - 1) 331 FIELD(MAPC, RDBASE, 16, 32) 332 333 #define RDBASE_PROCNUM_LENGTH 16 334 #define RDBASE_PROCNUM_MASK ((1ULL << RDBASE_PROCNUM_LENGTH) - 1) 335 336 /* MAPD command fields */ 337 #define ITTADDR_LENGTH 44 338 #define ITTADDR_SHIFT 8 339 #define ITTADDR_MASK MAKE_64BIT_MASK(ITTADDR_SHIFT, ITTADDR_LENGTH) 340 #define SIZE_MASK 0x1f 341 342 /* MAPI command fields */ 343 #define EVENTID_MASK ((1ULL << 32) - 1) 344 345 /* MAPTI command fields */ 346 #define pINTID_SHIFT 32 347 #define pINTID_MASK MAKE_64BIT_MASK(32, 32) 348 349 #define DEVID_SHIFT 32 350 #define DEVID_MASK MAKE_64BIT_MASK(32, 32) 351 352 #define VALID_SHIFT 63 353 #define CMD_FIELD_VALID_MASK (1ULL << VALID_SHIFT) 354 #define L2_TABLE_VALID_MASK CMD_FIELD_VALID_MASK 355 #define TABLE_ENTRY_VALID_MASK (1ULL << 0) 356 357 /** 358 * Default features advertised by this version of ITS 359 */ 360 /* Physical LPIs supported */ 361 #define GITS_TYPE_PHYSICAL (1U << 0) 362 363 /* 364 * 12 bytes Interrupt translation Table Entry size 365 * as per Table 5.3 in GICv3 spec 366 * ITE Lower 8 Bytes 367 * Bits: | 49 ... 26 | 25 ... 2 | 1 | 0 | 368 * Values: | 1023 | IntNum | IntType | Valid | 369 * ITE Higher 4 Bytes 370 * Bits: | 31 ... 16 | 15 ...0 | 371 * Values: | vPEID | ICID | 372 */ 373 #define ITS_ITT_ENTRY_SIZE 0xC 374 #define ITE_ENTRY_INTTYPE_SHIFT 1 375 #define ITE_ENTRY_INTID_SHIFT 2 376 #define ITE_ENTRY_INTID_MASK MAKE_64BIT_MASK(2, 24) 377 #define ITE_ENTRY_INTSP_SHIFT 26 378 #define ITE_ENTRY_ICID_MASK MAKE_64BIT_MASK(0, 16) 379 380 /* 16 bits EventId */ 381 #define ITS_IDBITS GICD_TYPER_IDBITS 382 383 /* 16 bits DeviceId */ 384 #define ITS_DEVBITS 0xF 385 386 /* 16 bits CollectionId */ 387 #define ITS_CIDBITS 0xF 388 389 /* 390 * 8 bytes Device Table Entry size 391 * Valid = 1 bit,ITTAddr = 44 bits,Size = 5 bits 392 */ 393 #define GITS_DTE_SIZE (0x8ULL) 394 #define GITS_DTE_ITTADDR_SHIFT 6 395 #define GITS_DTE_ITTADDR_MASK MAKE_64BIT_MASK(GITS_DTE_ITTADDR_SHIFT, \ 396 ITTADDR_LENGTH) 397 398 /* 399 * 8 bytes Collection Table Entry size 400 * Valid = 1 bit,RDBase = 36 bits(considering max RDBASE) 401 */ 402 #define GITS_CTE_SIZE (0x8ULL) 403 #define GITS_CTE_RDBASE_PROCNUM_MASK MAKE_64BIT_MASK(1, RDBASE_PROCNUM_LENGTH) 404 405 /* Special interrupt IDs */ 406 #define INTID_SECURE 1020 407 #define INTID_NONSECURE 1021 408 #define INTID_SPURIOUS 1023 409 410 /* Functions internal to the emulated GICv3 */ 411 412 /** 413 * gicv3_intid_is_special: 414 * @intid: interrupt ID 415 * 416 * Return true if @intid is a special interrupt ID (1020 to 417 * 1023 inclusive). This corresponds to the GIC spec pseudocode 418 * IsSpecial() function. 419 */ 420 static inline bool gicv3_intid_is_special(int intid) 421 { 422 return intid >= INTID_SECURE && intid <= INTID_SPURIOUS; 423 } 424 425 /** 426 * gicv3_redist_update: 427 * @cs: GICv3CPUState for this redistributor 428 * 429 * Recalculate the highest priority pending interrupt after a 430 * change to redistributor state, and inform the CPU accordingly. 431 */ 432 void gicv3_redist_update(GICv3CPUState *cs); 433 434 /** 435 * gicv3_update: 436 * @s: GICv3State 437 * @start: first interrupt whose state changed 438 * @len: length of the range of interrupts whose state changed 439 * 440 * Recalculate the highest priority pending interrupts after a 441 * change to the distributor state affecting @len interrupts 442 * starting at @start, and inform the CPUs accordingly. 443 */ 444 void gicv3_update(GICv3State *s, int start, int len); 445 446 /** 447 * gicv3_full_update_noirqset: 448 * @s: GICv3State 449 * 450 * Recalculate the cached information about highest priority 451 * pending interrupts, but don't inform the CPUs. This should be 452 * called after an incoming migration has loaded new state. 453 */ 454 void gicv3_full_update_noirqset(GICv3State *s); 455 456 /** 457 * gicv3_full_update: 458 * @s: GICv3State 459 * 460 * Recalculate the highest priority pending interrupts after 461 * a change that could affect the status of all interrupts, 462 * and inform the CPUs accordingly. 463 */ 464 void gicv3_full_update(GICv3State *s); 465 MemTxResult gicv3_dist_read(void *opaque, hwaddr offset, uint64_t *data, 466 unsigned size, MemTxAttrs attrs); 467 MemTxResult gicv3_dist_write(void *opaque, hwaddr addr, uint64_t data, 468 unsigned size, MemTxAttrs attrs); 469 MemTxResult gicv3_redist_read(void *opaque, hwaddr offset, uint64_t *data, 470 unsigned size, MemTxAttrs attrs); 471 MemTxResult gicv3_redist_write(void *opaque, hwaddr offset, uint64_t data, 472 unsigned size, MemTxAttrs attrs); 473 void gicv3_dist_set_irq(GICv3State *s, int irq, int level); 474 void gicv3_redist_set_irq(GICv3CPUState *cs, int irq, int level); 475 void gicv3_redist_process_lpi(GICv3CPUState *cs, int irq, int level); 476 void gicv3_redist_lpi_pending(GICv3CPUState *cs, int irq, int level); 477 /** 478 * gicv3_redist_update_lpi: 479 * @cs: GICv3CPUState 480 * 481 * Scan the LPI pending table and recalculate the highest priority 482 * pending LPI and also the overall highest priority pending interrupt. 483 */ 484 void gicv3_redist_update_lpi(GICv3CPUState *cs); 485 /** 486 * gicv3_redist_update_lpi_only: 487 * @cs: GICv3CPUState 488 * 489 * Scan the LPI pending table and recalculate cs->hpplpi only, 490 * without calling gicv3_redist_update() to recalculate the overall 491 * highest priority pending interrupt. This should be called after 492 * an incoming migration has loaded new state. 493 */ 494 void gicv3_redist_update_lpi_only(GICv3CPUState *cs); 495 void gicv3_redist_send_sgi(GICv3CPUState *cs, int grp, int irq, bool ns); 496 void gicv3_init_cpuif(GICv3State *s); 497 498 /** 499 * gicv3_cpuif_update: 500 * @cs: GICv3CPUState for the CPU to update 501 * 502 * Recalculate whether to assert the IRQ or FIQ lines after a change 503 * to the current highest priority pending interrupt, the CPU's 504 * current running priority or the CPU's current exception level or 505 * security state. 506 */ 507 void gicv3_cpuif_update(GICv3CPUState *cs); 508 509 static inline uint32_t gicv3_iidr(void) 510 { 511 /* Return the Implementer Identification Register value 512 * for the emulated GICv3, as reported in GICD_IIDR and GICR_IIDR. 513 * 514 * We claim to be an ARM r0p0 with a zero ProductID. 515 * This is the same as an r0p0 GIC-500. 516 */ 517 return 0x43b; 518 } 519 520 static inline uint32_t gicv3_idreg(int regoffset) 521 { 522 /* Return the value of the CoreSight ID register at the specified 523 * offset from the first ID register (as found in the distributor 524 * and redistributor register banks). 525 * These values indicate an ARM implementation of a GICv3. 526 */ 527 static const uint8_t gicd_ids[] = { 528 0x44, 0x00, 0x00, 0x00, 0x92, 0xB4, 0x3B, 0x00, 0x0D, 0xF0, 0x05, 0xB1 529 }; 530 return gicd_ids[regoffset / 4]; 531 } 532 533 /** 534 * gicv3_irq_group: 535 * 536 * Return the group which this interrupt is configured as (GICV3_G0, 537 * GICV3_G1 or GICV3_G1NS). 538 */ 539 static inline int gicv3_irq_group(GICv3State *s, GICv3CPUState *cs, int irq) 540 { 541 bool grpbit, grpmodbit; 542 543 if (irq < GIC_INTERNAL) { 544 grpbit = extract32(cs->gicr_igroupr0, irq, 1); 545 grpmodbit = extract32(cs->gicr_igrpmodr0, irq, 1); 546 } else { 547 grpbit = gicv3_gicd_group_test(s, irq); 548 grpmodbit = gicv3_gicd_grpmod_test(s, irq); 549 } 550 if (grpbit) { 551 return GICV3_G1NS; 552 } 553 if (s->gicd_ctlr & GICD_CTLR_DS) { 554 return GICV3_G0; 555 } 556 return grpmodbit ? GICV3_G1 : GICV3_G0; 557 } 558 559 /** 560 * gicv3_redist_affid: 561 * 562 * Return the 32-bit affinity ID of the CPU connected to this redistributor 563 */ 564 static inline uint32_t gicv3_redist_affid(GICv3CPUState *cs) 565 { 566 return cs->gicr_typer >> 32; 567 } 568 569 /** 570 * gicv3_cache_target_cpustate: 571 * 572 * Update the cached CPU state corresponding to the target for this interrupt 573 * (which is kept in s->gicd_irouter_target[]). 574 */ 575 static inline void gicv3_cache_target_cpustate(GICv3State *s, int irq) 576 { 577 GICv3CPUState *cs = NULL; 578 int i; 579 uint32_t tgtaff = extract64(s->gicd_irouter[irq], 0, 24) | 580 extract64(s->gicd_irouter[irq], 32, 8) << 24; 581 582 for (i = 0; i < s->num_cpu; i++) { 583 if (s->cpu[i].gicr_typer >> 32 == tgtaff) { 584 cs = &s->cpu[i]; 585 break; 586 } 587 } 588 589 s->gicd_irouter_target[irq] = cs; 590 } 591 592 /** 593 * gicv3_cache_all_target_cpustates: 594 * 595 * Populate the entire cache of CPU state pointers for interrupt targets 596 * (eg after inbound migration or CPU reset) 597 */ 598 static inline void gicv3_cache_all_target_cpustates(GICv3State *s) 599 { 600 int irq; 601 602 for (irq = GIC_INTERNAL; irq < GICV3_MAXIRQ; irq++) { 603 gicv3_cache_target_cpustate(s, irq); 604 } 605 } 606 607 void gicv3_set_gicv3state(CPUState *cpu, GICv3CPUState *s); 608 609 #endif /* QEMU_ARM_GICV3_INTERNAL_H */ 610