/* * ARM GICv3 support - internal interfaces * * Copyright (c) 2012 Linaro Limited * Copyright (c) 2015 Huawei. * Copyright (c) 2015 Samsung Electronics Co., Ltd. * Written by Peter Maydell * Reworked for GICv3 by Shlomo Pongratz and Pavel Fedin * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License along * with this program; if not, see . */ #ifndef QEMU_ARM_GICV3_INTERNAL_H #define QEMU_ARM_GICV3_INTERNAL_H #include "hw/registerfields.h" #include "hw/intc/arm_gicv3_common.h" /* Distributor registers, as offsets from the distributor base address */ #define GICD_CTLR 0x0000 #define GICD_TYPER 0x0004 #define GICD_IIDR 0x0008 #define GICD_STATUSR 0x0010 #define GICD_SETSPI_NSR 0x0040 #define GICD_CLRSPI_NSR 0x0048 #define GICD_SETSPI_SR 0x0050 #define GICD_CLRSPI_SR 0x0058 #define GICD_SEIR 0x0068 #define GICD_IGROUPR 0x0080 #define GICD_ISENABLER 0x0100 #define GICD_ICENABLER 0x0180 #define GICD_ISPENDR 0x0200 #define GICD_ICPENDR 0x0280 #define GICD_ISACTIVER 0x0300 #define GICD_ICACTIVER 0x0380 #define GICD_IPRIORITYR 0x0400 #define GICD_ITARGETSR 0x0800 #define GICD_ICFGR 0x0C00 #define GICD_IGRPMODR 0x0D00 #define GICD_NSACR 0x0E00 #define GICD_SGIR 0x0F00 #define GICD_CPENDSGIR 0x0F10 #define GICD_SPENDSGIR 0x0F20 #define GICD_IROUTER 0x6000 #define GICD_IDREGS 0xFFD0 /* GICD_CTLR fields */ #define GICD_CTLR_EN_GRP0 (1U << 0) #define GICD_CTLR_EN_GRP1NS (1U << 1) /* GICv3 5.3.20 */ #define GICD_CTLR_EN_GRP1S (1U << 2) #define GICD_CTLR_EN_GRP1_ALL (GICD_CTLR_EN_GRP1NS | GICD_CTLR_EN_GRP1S) /* Bit 4 is ARE if the system doesn't support TrustZone, ARE_S otherwise */ #define GICD_CTLR_ARE (1U << 4) #define GICD_CTLR_ARE_S (1U << 4) #define GICD_CTLR_ARE_NS (1U << 5) #define GICD_CTLR_DS (1U << 6) #define GICD_CTLR_E1NWF (1U << 7) #define GICD_CTLR_RWP (1U << 31) #define GICD_TYPER_LPIS_SHIFT 17 /* 16 bits EventId */ #define GICD_TYPER_IDBITS 0xf /* * Redistributor frame offsets from RD_base */ #define GICR_SGI_OFFSET 0x10000 #define GICR_VLPI_OFFSET 0x20000 /* * Redistributor registers, offsets from RD_base */ #define GICR_CTLR 0x0000 #define GICR_IIDR 0x0004 #define GICR_TYPER 0x0008 #define GICR_STATUSR 0x0010 #define GICR_WAKER 0x0014 #define GICR_SETLPIR 0x0040 #define GICR_CLRLPIR 0x0048 #define GICR_PROPBASER 0x0070 #define GICR_PENDBASER 0x0078 #define GICR_INVLPIR 0x00A0 #define GICR_INVALLR 0x00B0 #define GICR_SYNCR 0x00C0 #define GICR_IDREGS 0xFFD0 /* SGI and PPI Redistributor registers, offsets from RD_base */ #define GICR_IGROUPR0 (GICR_SGI_OFFSET + 0x0080) #define GICR_ISENABLER0 (GICR_SGI_OFFSET + 0x0100) #define GICR_ICENABLER0 (GICR_SGI_OFFSET + 0x0180) #define GICR_ISPENDR0 (GICR_SGI_OFFSET + 0x0200) #define GICR_ICPENDR0 (GICR_SGI_OFFSET + 0x0280) #define GICR_ISACTIVER0 (GICR_SGI_OFFSET + 0x0300) #define GICR_ICACTIVER0 (GICR_SGI_OFFSET + 0x0380) #define GICR_IPRIORITYR (GICR_SGI_OFFSET + 0x0400) #define GICR_ICFGR0 (GICR_SGI_OFFSET + 0x0C00) #define GICR_ICFGR1 (GICR_SGI_OFFSET + 0x0C04) #define GICR_IGRPMODR0 (GICR_SGI_OFFSET + 0x0D00) #define GICR_NSACR (GICR_SGI_OFFSET + 0x0E00) /* VLPI redistributor registers, offsets from VLPI_base */ #define GICR_VPROPBASER (GICR_VLPI_OFFSET + 0x70) #define GICR_VPENDBASER (GICR_VLPI_OFFSET + 0x78) #define GICR_CTLR_ENABLE_LPIS (1U << 0) #define GICR_CTLR_CES (1U << 1) #define GICR_CTLR_RWP (1U << 3) #define GICR_CTLR_DPG0 (1U << 24) #define GICR_CTLR_DPG1NS (1U << 25) #define GICR_CTLR_DPG1S (1U << 26) #define GICR_CTLR_UWP (1U << 31) #define GICR_TYPER_PLPIS (1U << 0) #define GICR_TYPER_VLPIS (1U << 1) #define GICR_TYPER_DIRECTLPI (1U << 3) #define GICR_TYPER_LAST (1U << 4) #define GICR_TYPER_DPGS (1U << 5) #define GICR_TYPER_PROCNUM (0xFFFFU << 8) #define GICR_TYPER_COMMONLPIAFF (0x3 << 24) #define GICR_TYPER_AFFINITYVALUE (0xFFFFFFFFULL << 32) #define GICR_WAKER_ProcessorSleep (1U << 1) #define GICR_WAKER_ChildrenAsleep (1U << 2) FIELD(GICR_PROPBASER, IDBITS, 0, 5) FIELD(GICR_PROPBASER, INNERCACHE, 7, 3) FIELD(GICR_PROPBASER, SHAREABILITY, 10, 2) FIELD(GICR_PROPBASER, PHYADDR, 12, 40) FIELD(GICR_PROPBASER, OUTERCACHE, 56, 3) FIELD(GICR_PENDBASER, INNERCACHE, 7, 3) FIELD(GICR_PENDBASER, SHAREABILITY, 10, 2) FIELD(GICR_PENDBASER, PHYADDR, 16, 36) FIELD(GICR_PENDBASER, OUTERCACHE, 56, 3) FIELD(GICR_PENDBASER, PTZ, 62, 1) #define GICR_PROPBASER_IDBITS_THRESHOLD 0xd /* These are the GICv4 VPROPBASER and VPENDBASER layouts; v4.1 is different */ FIELD(GICR_VPROPBASER, IDBITS, 0, 5) FIELD(GICR_VPROPBASER, INNERCACHE, 7, 3) FIELD(GICR_VPROPBASER, SHAREABILITY, 10, 2) FIELD(GICR_VPROPBASER, PHYADDR, 12, 40) FIELD(GICR_VPROPBASER, OUTERCACHE, 56, 3) FIELD(GICR_VPENDBASER, INNERCACHE, 7, 3) FIELD(GICR_VPENDBASER, SHAREABILITY, 10, 2) FIELD(GICR_VPENDBASER, PHYADDR, 16, 36) FIELD(GICR_VPENDBASER, OUTERCACHE, 56, 3) FIELD(GICR_VPENDBASER, DIRTY, 60, 1) FIELD(GICR_VPENDBASER, PENDINGLAST, 61, 1) FIELD(GICR_VPENDBASER, IDAI, 62, 1) FIELD(GICR_VPENDBASER, VALID, 63, 1) #define ICC_CTLR_EL1_CBPR (1U << 0) #define ICC_CTLR_EL1_EOIMODE (1U << 1) #define ICC_CTLR_EL1_PMHE (1U << 6) #define ICC_CTLR_EL1_PRIBITS_SHIFT 8 #define ICC_CTLR_EL1_PRIBITS_MASK (7U << ICC_CTLR_EL1_PRIBITS_SHIFT) #define ICC_CTLR_EL1_IDBITS_SHIFT 11 #define ICC_CTLR_EL1_SEIS (1U << 14) #define ICC_CTLR_EL1_A3V (1U << 15) #define ICC_PMR_PRIORITY_MASK 0xff #define ICC_BPR_BINARYPOINT_MASK 0x07 #define ICC_IGRPEN_ENABLE 0x01 #define ICC_CTLR_EL3_CBPR_EL1S (1U << 0) #define ICC_CTLR_EL3_CBPR_EL1NS (1U << 1) #define ICC_CTLR_EL3_EOIMODE_EL3 (1U << 2) #define ICC_CTLR_EL3_EOIMODE_EL1S (1U << 3) #define ICC_CTLR_EL3_EOIMODE_EL1NS (1U << 4) #define ICC_CTLR_EL3_RM (1U << 5) #define ICC_CTLR_EL3_PMHE (1U << 6) #define ICC_CTLR_EL3_PRIBITS_SHIFT 8 #define ICC_CTLR_EL3_IDBITS_SHIFT 11 #define ICC_CTLR_EL3_SEIS (1U << 14) #define ICC_CTLR_EL3_A3V (1U << 15) #define ICC_CTLR_EL3_NDS (1U << 17) #define ICH_VMCR_EL2_VENG0_SHIFT 0 #define ICH_VMCR_EL2_VENG0 (1U << ICH_VMCR_EL2_VENG0_SHIFT) #define ICH_VMCR_EL2_VENG1_SHIFT 1 #define ICH_VMCR_EL2_VENG1 (1U << ICH_VMCR_EL2_VENG1_SHIFT) #define ICH_VMCR_EL2_VACKCTL (1U << 2) #define ICH_VMCR_EL2_VFIQEN (1U << 3) #define ICH_VMCR_EL2_VCBPR_SHIFT 4 #define ICH_VMCR_EL2_VCBPR (1U << ICH_VMCR_EL2_VCBPR_SHIFT) #define ICH_VMCR_EL2_VEOIM_SHIFT 9 #define ICH_VMCR_EL2_VEOIM (1U << ICH_VMCR_EL2_VEOIM_SHIFT) #define ICH_VMCR_EL2_VBPR1_SHIFT 18 #define ICH_VMCR_EL2_VBPR1_LENGTH 3 #define ICH_VMCR_EL2_VBPR1_MASK (0x7U << ICH_VMCR_EL2_VBPR1_SHIFT) #define ICH_VMCR_EL2_VBPR0_SHIFT 21 #define ICH_VMCR_EL2_VBPR0_LENGTH 3 #define ICH_VMCR_EL2_VBPR0_MASK (0x7U << ICH_VMCR_EL2_VBPR0_SHIFT) #define ICH_VMCR_EL2_VPMR_SHIFT 24 #define ICH_VMCR_EL2_VPMR_LENGTH 8 #define ICH_VMCR_EL2_VPMR_MASK (0xffU << ICH_VMCR_EL2_VPMR_SHIFT) #define ICH_HCR_EL2_EN (1U << 0) #define ICH_HCR_EL2_UIE (1U << 1) #define ICH_HCR_EL2_LRENPIE (1U << 2) #define ICH_HCR_EL2_NPIE (1U << 3) #define ICH_HCR_EL2_VGRP0EIE (1U << 4) #define ICH_HCR_EL2_VGRP0DIE (1U << 5) #define ICH_HCR_EL2_VGRP1EIE (1U << 6) #define ICH_HCR_EL2_VGRP1DIE (1U << 7) #define ICH_HCR_EL2_TC (1U << 10) #define ICH_HCR_EL2_TALL0 (1U << 11) #define ICH_HCR_EL2_TALL1 (1U << 12) #define ICH_HCR_EL2_TSEI (1U << 13) #define ICH_HCR_EL2_TDIR (1U << 14) #define ICH_HCR_EL2_EOICOUNT_SHIFT 27 #define ICH_HCR_EL2_EOICOUNT_LENGTH 5 #define ICH_HCR_EL2_EOICOUNT_MASK (0x1fU << ICH_HCR_EL2_EOICOUNT_SHIFT) #define ICH_LR_EL2_VINTID_SHIFT 0 #define ICH_LR_EL2_VINTID_LENGTH 32 #define ICH_LR_EL2_VINTID_MASK (0xffffffffULL << ICH_LR_EL2_VINTID_SHIFT) #define ICH_LR_EL2_PINTID_SHIFT 32 #define ICH_LR_EL2_PINTID_LENGTH 10 #define ICH_LR_EL2_PINTID_MASK (0x3ffULL << ICH_LR_EL2_PINTID_SHIFT) /* Note that EOI shares with the top bit of the pINTID field */ #define ICH_LR_EL2_EOI (1ULL << 41) #define ICH_LR_EL2_PRIORITY_SHIFT 48 #define ICH_LR_EL2_PRIORITY_LENGTH 8 #define ICH_LR_EL2_PRIORITY_MASK (0xffULL << ICH_LR_EL2_PRIORITY_SHIFT) #define ICH_LR_EL2_GROUP (1ULL << 60) #define ICH_LR_EL2_HW (1ULL << 61) #define ICH_LR_EL2_STATE_SHIFT 62 #define ICH_LR_EL2_STATE_LENGTH 2 #define ICH_LR_EL2_STATE_MASK (3ULL << ICH_LR_EL2_STATE_SHIFT) /* values for the state field: */ #define ICH_LR_EL2_STATE_INVALID 0 #define ICH_LR_EL2_STATE_PENDING 1 #define ICH_LR_EL2_STATE_ACTIVE 2 #define ICH_LR_EL2_STATE_ACTIVE_PENDING 3 #define ICH_LR_EL2_STATE_PENDING_BIT (1ULL << ICH_LR_EL2_STATE_SHIFT) #define ICH_LR_EL2_STATE_ACTIVE_BIT (2ULL << ICH_LR_EL2_STATE_SHIFT) #define ICH_MISR_EL2_EOI (1U << 0) #define ICH_MISR_EL2_U (1U << 1) #define ICH_MISR_EL2_LRENP (1U << 2) #define ICH_MISR_EL2_NP (1U << 3) #define ICH_MISR_EL2_VGRP0E (1U << 4) #define ICH_MISR_EL2_VGRP0D (1U << 5) #define ICH_MISR_EL2_VGRP1E (1U << 6) #define ICH_MISR_EL2_VGRP1D (1U << 7) #define ICH_VTR_EL2_LISTREGS_SHIFT 0 #define ICH_VTR_EL2_TDS (1U << 19) #define ICH_VTR_EL2_NV4 (1U << 20) #define ICH_VTR_EL2_A3V (1U << 21) #define ICH_VTR_EL2_SEIS (1U << 22) #define ICH_VTR_EL2_IDBITS_SHIFT 23 #define ICH_VTR_EL2_PREBITS_SHIFT 26 #define ICH_VTR_EL2_PRIBITS_SHIFT 29 /* ITS Registers */ FIELD(GITS_BASER, SIZE, 0, 8) FIELD(GITS_BASER, PAGESIZE, 8, 2) FIELD(GITS_BASER, SHAREABILITY, 10, 2) FIELD(GITS_BASER, PHYADDR, 12, 36) FIELD(GITS_BASER, PHYADDRL_64K, 16, 32) FIELD(GITS_BASER, PHYADDRH_64K, 12, 4) FIELD(GITS_BASER, ENTRYSIZE, 48, 5) FIELD(GITS_BASER, OUTERCACHE, 53, 3) FIELD(GITS_BASER, TYPE, 56, 3) FIELD(GITS_BASER, INNERCACHE, 59, 3) FIELD(GITS_BASER, INDIRECT, 62, 1) FIELD(GITS_BASER, VALID, 63, 1) FIELD(GITS_CBASER, SIZE, 0, 8) FIELD(GITS_CBASER, SHAREABILITY, 10, 2) FIELD(GITS_CBASER, PHYADDR, 12, 40) FIELD(GITS_CBASER, OUTERCACHE, 53, 3) FIELD(GITS_CBASER, INNERCACHE, 59, 3) FIELD(GITS_CBASER, VALID, 63, 1) FIELD(GITS_CREADR, STALLED, 0, 1) FIELD(GITS_CREADR, OFFSET, 5, 15) FIELD(GITS_CWRITER, RETRY, 0, 1) FIELD(GITS_CWRITER, OFFSET, 5, 15) FIELD(GITS_CTLR, ENABLED, 0, 1) FIELD(GITS_CTLR, QUIESCENT, 31, 1) FIELD(GITS_TYPER, PHYSICAL, 0, 1) FIELD(GITS_TYPER, VIRTUAL, 1, 1) FIELD(GITS_TYPER, ITT_ENTRY_SIZE, 4, 4) FIELD(GITS_TYPER, IDBITS, 8, 5) FIELD(GITS_TYPER, DEVBITS, 13, 5) FIELD(GITS_TYPER, SEIS, 18, 1) FIELD(GITS_TYPER, PTA, 19, 1) FIELD(GITS_TYPER, CIDBITS, 32, 4) FIELD(GITS_TYPER, CIL, 36, 1) FIELD(GITS_TYPER, VMOVP, 37, 1) #define GITS_IDREGS 0xFFD0 #define GITS_BASER_RO_MASK (R_GITS_BASER_ENTRYSIZE_MASK | \ R_GITS_BASER_TYPE_MASK) #define GITS_BASER_PAGESIZE_4K 0 #define GITS_BASER_PAGESIZE_16K 1 #define GITS_BASER_PAGESIZE_64K 2 #define GITS_BASER_TYPE_DEVICE 1ULL #define GITS_BASER_TYPE_VPE 2ULL #define GITS_BASER_TYPE_COLLECTION 4ULL #define GITS_PAGE_SIZE_4K 0x1000 #define GITS_PAGE_SIZE_16K 0x4000 #define GITS_PAGE_SIZE_64K 0x10000 #define L1TABLE_ENTRY_SIZE 8 #define LPI_CTE_ENABLED TABLE_ENTRY_VALID_MASK #define LPI_PRIORITY_MASK 0xfc #define GITS_CMDQ_ENTRY_WORDS 4 #define GITS_CMDQ_ENTRY_SIZE (GITS_CMDQ_ENTRY_WORDS * sizeof(uint64_t)) #define CMD_MASK 0xff /* ITS Commands */ #define GITS_CMD_MOVI 0x01 #define GITS_CMD_INT 0x03 #define GITS_CMD_CLEAR 0x04 #define GITS_CMD_SYNC 0x05 #define GITS_CMD_MAPD 0x08 #define GITS_CMD_MAPC 0x09 #define GITS_CMD_MAPTI 0x0A #define GITS_CMD_MAPI 0x0B #define GITS_CMD_INV 0x0C #define GITS_CMD_INVALL 0x0D #define GITS_CMD_MOVALL 0x0E #define GITS_CMD_DISCARD 0x0F #define GITS_CMD_VMOVI 0x21 #define GITS_CMD_VMOVP 0x22 #define GITS_CMD_VSYNC 0x25 #define GITS_CMD_VMAPP 0x29 #define GITS_CMD_VMAPTI 0x2A #define GITS_CMD_VMAPI 0x2B #define GITS_CMD_VINVALL 0x2D /* MAPC command fields */ #define ICID_LENGTH 16 #define ICID_MASK ((1U << ICID_LENGTH) - 1) FIELD(MAPC, RDBASE, 16, 32) #define RDBASE_PROCNUM_LENGTH 16 #define RDBASE_PROCNUM_MASK ((1ULL << RDBASE_PROCNUM_LENGTH) - 1) /* MAPD command fields */ #define ITTADDR_LENGTH 44 #define ITTADDR_SHIFT 8 #define ITTADDR_MASK MAKE_64BIT_MASK(ITTADDR_SHIFT, ITTADDR_LENGTH) #define SIZE_MASK 0x1f /* MAPI command fields */ #define EVENTID_MASK ((1ULL << 32) - 1) /* MAPTI command fields */ #define pINTID_SHIFT 32 #define pINTID_MASK MAKE_64BIT_MASK(32, 32) #define DEVID_SHIFT 32 #define DEVID_MASK MAKE_64BIT_MASK(32, 32) #define VALID_SHIFT 63 #define CMD_FIELD_VALID_MASK (1ULL << VALID_SHIFT) #define L2_TABLE_VALID_MASK CMD_FIELD_VALID_MASK #define TABLE_ENTRY_VALID_MASK (1ULL << 0) /* MOVALL command fields */ FIELD(MOVALL_2, RDBASE1, 16, 36) FIELD(MOVALL_3, RDBASE2, 16, 36) /* MOVI command fields */ FIELD(MOVI_0, DEVICEID, 32, 32) FIELD(MOVI_1, EVENTID, 0, 32) FIELD(MOVI_2, ICID, 0, 16) /* INV command fields */ FIELD(INV_0, DEVICEID, 32, 32) FIELD(INV_1, EVENTID, 0, 32) /* VMAPI, VMAPTI command fields */ FIELD(VMAPTI_0, DEVICEID, 32, 32) FIELD(VMAPTI_1, EVENTID, 0, 32) FIELD(VMAPTI_1, VPEID, 32, 16) FIELD(VMAPTI_2, VINTID, 0, 32) /* VMAPTI only */ FIELD(VMAPTI_2, DOORBELL, 32, 32) /* VMAPP command fields */ FIELD(VMAPP_0, ALLOC, 8, 1) /* GICv4.1 only */ FIELD(VMAPP_0, PTZ, 9, 1) /* GICv4.1 only */ FIELD(VMAPP_0, VCONFADDR, 16, 36) /* GICv4.1 only */ FIELD(VMAPP_1, DEFAULT_DOORBELL, 0, 32) /* GICv4.1 only */ FIELD(VMAPP_1, VPEID, 32, 16) FIELD(VMAPP_2, RDBASE, 16, 36) FIELD(VMAPP_2, V, 63, 1) FIELD(VMAPP_3, VPTSIZE, 0, 8) /* For GICv4.0, bits [7:6] are RES0 */ FIELD(VMAPP_3, VPTADDR, 16, 36) /* VMOVP command fields */ FIELD(VMOVP_0, SEQNUM, 32, 16) /* not used for GITS_TYPER.VMOVP == 1 */ FIELD(VMOVP_1, ITSLIST, 0, 16) /* not used for GITS_TYPER.VMOVP == 1 */ FIELD(VMOVP_1, VPEID, 32, 16) FIELD(VMOVP_2, RDBASE, 16, 36) FIELD(VMOVP_2, DB, 63, 1) /* GICv4.1 only */ FIELD(VMOVP_3, DEFAULT_DOORBELL, 0, 32) /* GICv4.1 only */ /* VMOVI command fields */ FIELD(VMOVI_0, DEVICEID, 32, 32) FIELD(VMOVI_1, EVENTID, 0, 32) FIELD(VMOVI_1, VPEID, 32, 16) FIELD(VMOVI_2, D, 0, 1) FIELD(VMOVI_2, DOORBELL, 32, 32) /* VINVALL command fields */ FIELD(VINVALL_1, VPEID, 32, 16) /* * 12 bytes Interrupt translation Table Entry size * as per Table 5.3 in GICv3 spec * ITE Lower 8 Bytes * Bits: | 63 ... 48 | 47 ... 32 | 31 ... 26 | 25 ... 2 | 1 | 0 | * Values: | vPEID | ICID | unused | IntNum | IntType | Valid | * ITE Higher 4 Bytes * Bits: | 31 ... 25 | 24 ... 0 | * Values: | unused | Doorbell | * (When Doorbell is unused, as it always is for INTYPE_PHYSICAL, * the value of that field in memory cannot be relied upon -- older * versions of QEMU did not correctly write to that memory.) */ #define ITS_ITT_ENTRY_SIZE 0xC FIELD(ITE_L, VALID, 0, 1) FIELD(ITE_L, INTTYPE, 1, 1) FIELD(ITE_L, INTID, 2, 24) FIELD(ITE_L, ICID, 32, 16) FIELD(ITE_L, VPEID, 48, 16) FIELD(ITE_H, DOORBELL, 0, 24) /* Possible values for ITE_L INTTYPE */ #define ITE_INTTYPE_VIRTUAL 0 #define ITE_INTTYPE_PHYSICAL 1 /* 16 bits EventId */ #define ITS_IDBITS GICD_TYPER_IDBITS /* 16 bits DeviceId */ #define ITS_DEVBITS 0xF /* 16 bits CollectionId */ #define ITS_CIDBITS 0xF /* * 8 bytes Device Table Entry size * Valid = 1 bit,ITTAddr = 44 bits,Size = 5 bits */ #define GITS_DTE_SIZE (0x8ULL) FIELD(DTE, VALID, 0, 1) FIELD(DTE, SIZE, 1, 5) FIELD(DTE, ITTADDR, 6, 44) /* * 8 bytes Collection Table Entry size * Valid = 1 bit, RDBase = 16 bits */ #define GITS_CTE_SIZE (0x8ULL) FIELD(CTE, VALID, 0, 1) FIELD(CTE, RDBASE, 1, RDBASE_PROCNUM_LENGTH) /* * 8 bytes VPE table entry size: * Valid = 1 bit, VPTsize = 5 bits, VPTaddr = 36 bits, RDbase = 16 bits * * Field sizes for Valid and size are mandated; field sizes for RDbase * and VPT_addr are IMPDEF. */ #define GITS_VPE_SIZE 0x8ULL FIELD(VTE, VALID, 0, 1) FIELD(VTE, VPTSIZE, 1, 5) FIELD(VTE, VPTADDR, 6, 36) FIELD(VTE, RDBASE, 42, RDBASE_PROCNUM_LENGTH) /* Special interrupt IDs */ #define INTID_SECURE 1020 #define INTID_NONSECURE 1021 #define INTID_SPURIOUS 1023 /* Functions internal to the emulated GICv3 */ /** * gicv3_redist_size: * @s: GICv3State * * Return the size of the redistributor register frame in bytes * (which depends on what GIC version this is) */ static inline int gicv3_redist_size(GICv3State *s) { /* * Redistributor size is controlled by the redistributor GICR_TYPER.VLPIS. * It's the same for every redistributor in the GIC, so arbitrarily * use the register field in the first one. */ if (s->cpu[0].gicr_typer & GICR_TYPER_VLPIS) { return GICV4_REDIST_SIZE; } else { return GICV3_REDIST_SIZE; } } /** * gicv3_intid_is_special: * @intid: interrupt ID * * Return true if @intid is a special interrupt ID (1020 to * 1023 inclusive). This corresponds to the GIC spec pseudocode * IsSpecial() function. */ static inline bool gicv3_intid_is_special(int intid) { return intid >= INTID_SECURE && intid <= INTID_SPURIOUS; } /** * gicv3_redist_update: * @cs: GICv3CPUState for this redistributor * * Recalculate the highest priority pending interrupt after a * change to redistributor state, and inform the CPU accordingly. */ void gicv3_redist_update(GICv3CPUState *cs); /** * gicv3_update: * @s: GICv3State * @start: first interrupt whose state changed * @len: length of the range of interrupts whose state changed * * Recalculate the highest priority pending interrupts after a * change to the distributor state affecting @len interrupts * starting at @start, and inform the CPUs accordingly. */ void gicv3_update(GICv3State *s, int start, int len); /** * gicv3_full_update_noirqset: * @s: GICv3State * * Recalculate the cached information about highest priority * pending interrupts, but don't inform the CPUs. This should be * called after an incoming migration has loaded new state. */ void gicv3_full_update_noirqset(GICv3State *s); /** * gicv3_full_update: * @s: GICv3State * * Recalculate the highest priority pending interrupts after * a change that could affect the status of all interrupts, * and inform the CPUs accordingly. */ void gicv3_full_update(GICv3State *s); MemTxResult gicv3_dist_read(void *opaque, hwaddr offset, uint64_t *data, unsigned size, MemTxAttrs attrs); MemTxResult gicv3_dist_write(void *opaque, hwaddr addr, uint64_t data, unsigned size, MemTxAttrs attrs); MemTxResult gicv3_redist_read(void *opaque, hwaddr offset, uint64_t *data, unsigned size, MemTxAttrs attrs); MemTxResult gicv3_redist_write(void *opaque, hwaddr offset, uint64_t data, unsigned size, MemTxAttrs attrs); void gicv3_dist_set_irq(GICv3State *s, int irq, int level); void gicv3_redist_set_irq(GICv3CPUState *cs, int irq, int level); void gicv3_redist_process_lpi(GICv3CPUState *cs, int irq, int level); /** * gicv3_redist_process_vlpi: * @cs: GICv3CPUState * @irq: (virtual) interrupt number * @vptaddr: (guest) address of VLPI table * @doorbell: doorbell (physical) interrupt number (1023 for "no doorbell") * @level: level to set @irq to * * Process a virtual LPI being directly injected by the ITS. This function * will update the VLPI table specified by @vptaddr and @vptsize. If the * vCPU corresponding to that VLPI table is currently running on * the CPU associated with this redistributor, directly inject the VLPI * @irq. If the vCPU is not running on this CPU, raise the doorbell * interrupt instead. */ void gicv3_redist_process_vlpi(GICv3CPUState *cs, int irq, uint64_t vptaddr, int doorbell, int level); /** * gicv3_redist_vlpi_pending: * @cs: GICv3CPUState * @irq: (virtual) interrupt number * @level: level to set @irq to * * Set/clear the pending status of a virtual LPI in the vLPI table * that this redistributor is currently using. (The difference between * this and gicv3_redist_process_vlpi() is that this is called from * the cpuif and does not need to do the not-running-on-this-vcpu checks.) */ void gicv3_redist_vlpi_pending(GICv3CPUState *cs, int irq, int level); void gicv3_redist_lpi_pending(GICv3CPUState *cs, int irq, int level); /** * gicv3_redist_update_lpi: * @cs: GICv3CPUState * * Scan the LPI pending table and recalculate the highest priority * pending LPI and also the overall highest priority pending interrupt. */ void gicv3_redist_update_lpi(GICv3CPUState *cs); /** * gicv3_redist_update_lpi_only: * @cs: GICv3CPUState * * Scan the LPI pending table and recalculate cs->hpplpi only, * without calling gicv3_redist_update() to recalculate the overall * highest priority pending interrupt. This should be called after * an incoming migration has loaded new state. */ void gicv3_redist_update_lpi_only(GICv3CPUState *cs); /** * gicv3_redist_inv_lpi: * @cs: GICv3CPUState * @irq: LPI to invalidate cached information for * * Forget or update any cached information associated with this LPI. */ void gicv3_redist_inv_lpi(GICv3CPUState *cs, int irq); /** * gicv3_redist_inv_vlpi: * @cs: GICv3CPUState * @irq: vLPI to invalidate cached information for * @vptaddr: (guest) address of vLPI table * * Forget or update any cached information associated with this vLPI. */ void gicv3_redist_inv_vlpi(GICv3CPUState *cs, int irq, uint64_t vptaddr); /** * gicv3_redist_mov_lpi: * @src: source redistributor * @dest: destination redistributor * @irq: LPI to update * * Move the pending state of the specified LPI from @src to @dest, * as required by the ITS MOVI command. */ void gicv3_redist_mov_lpi(GICv3CPUState *src, GICv3CPUState *dest, int irq); /** * gicv3_redist_movall_lpis: * @src: source redistributor * @dest: destination redistributor * * Scan the LPI pending table for @src, and for each pending LPI there * mark it as not-pending for @src and pending for @dest, as required * by the ITS MOVALL command. */ void gicv3_redist_movall_lpis(GICv3CPUState *src, GICv3CPUState *dest); /** * gicv3_redist_mov_vlpi: * @src: source redistributor * @src_vptaddr: (guest) address of source VLPI table * @dest: destination redistributor * @dest_vptaddr: (guest) address of destination VLPI table * @irq: VLPI to update * @doorbell: doorbell for destination (1023 for "no doorbell") * * Move the pending state of the specified VLPI from @src to @dest, * as required by the ITS VMOVI command. */ void gicv3_redist_mov_vlpi(GICv3CPUState *src, uint64_t src_vptaddr, GICv3CPUState *dest, uint64_t dest_vptaddr, int irq, int doorbell); /** * gicv3_redist_vinvall: * @cs: GICv3CPUState * @vptaddr: address of VLPI pending table * * On redistributor @cs, invalidate all cached information associated * with the vCPU defined by @vptaddr. */ void gicv3_redist_vinvall(GICv3CPUState *cs, uint64_t vptaddr); void gicv3_redist_send_sgi(GICv3CPUState *cs, int grp, int irq, bool ns); void gicv3_init_cpuif(GICv3State *s); /** * gicv3_cpuif_update: * @cs: GICv3CPUState for the CPU to update * * Recalculate whether to assert the IRQ or FIQ lines after a change * to the current highest priority pending interrupt, the CPU's * current running priority or the CPU's current exception level or * security state. */ void gicv3_cpuif_update(GICv3CPUState *cs); /* * gicv3_cpuif_virt_irq_fiq_update: * @cs: GICv3CPUState for the CPU to update * * Recalculate whether to assert the virtual IRQ or FIQ lines after * a change to the current highest priority pending virtual interrupt. * Note that this does not recalculate and change the maintenance * interrupt status (for that, see gicv3_cpuif_virt_update()). */ void gicv3_cpuif_virt_irq_fiq_update(GICv3CPUState *cs); static inline uint32_t gicv3_iidr(void) { /* Return the Implementer Identification Register value * for the emulated GICv3, as reported in GICD_IIDR and GICR_IIDR. * * We claim to be an ARM r0p0 with a zero ProductID. * This is the same as an r0p0 GIC-500. */ return 0x43b; } /* CoreSight PIDR0 values for ARM GICv3 implementations */ #define GICV3_PIDR0_DIST 0x92 #define GICV3_PIDR0_REDIST 0x93 #define GICV3_PIDR0_ITS 0x94 static inline uint32_t gicv3_idreg(GICv3State *s, int regoffset, uint8_t pidr0) { /* Return the value of the CoreSight ID register at the specified * offset from the first ID register (as found in the distributor * and redistributor register banks). * These values indicate an ARM implementation of a GICv3 or v4. */ static const uint8_t gicd_ids[] = { 0x44, 0x00, 0x00, 0x00, 0x92, 0xB4, 0x0B, 0x00, 0x0D, 0xF0, 0x05, 0xB1 }; uint32_t id; regoffset /= 4; if (regoffset == 4) { return pidr0; } id = gicd_ids[regoffset]; if (regoffset == 6) { /* PIDR2 bits [7:4] are the GIC architecture revision */ id |= s->revision << 4; } return id; } /** * gicv3_irq_group: * * Return the group which this interrupt is configured as (GICV3_G0, * GICV3_G1 or GICV3_G1NS). */ static inline int gicv3_irq_group(GICv3State *s, GICv3CPUState *cs, int irq) { bool grpbit, grpmodbit; if (irq < GIC_INTERNAL) { grpbit = extract32(cs->gicr_igroupr0, irq, 1); grpmodbit = extract32(cs->gicr_igrpmodr0, irq, 1); } else { grpbit = gicv3_gicd_group_test(s, irq); grpmodbit = gicv3_gicd_grpmod_test(s, irq); } if (grpbit) { return GICV3_G1NS; } if (s->gicd_ctlr & GICD_CTLR_DS) { return GICV3_G0; } return grpmodbit ? GICV3_G1 : GICV3_G0; } /** * gicv3_redist_affid: * * Return the 32-bit affinity ID of the CPU connected to this redistributor */ static inline uint32_t gicv3_redist_affid(GICv3CPUState *cs) { return cs->gicr_typer >> 32; } /** * gicv3_cache_target_cpustate: * * Update the cached CPU state corresponding to the target for this interrupt * (which is kept in s->gicd_irouter_target[]). */ static inline void gicv3_cache_target_cpustate(GICv3State *s, int irq) { GICv3CPUState *cs = NULL; int i; uint32_t tgtaff = extract64(s->gicd_irouter[irq], 0, 24) | extract64(s->gicd_irouter[irq], 32, 8) << 24; for (i = 0; i < s->num_cpu; i++) { if (s->cpu[i].gicr_typer >> 32 == tgtaff) { cs = &s->cpu[i]; break; } } s->gicd_irouter_target[irq] = cs; } /** * gicv3_cache_all_target_cpustates: * * Populate the entire cache of CPU state pointers for interrupt targets * (eg after inbound migration or CPU reset) */ static inline void gicv3_cache_all_target_cpustates(GICv3State *s) { int irq; for (irq = GIC_INTERNAL; irq < GICV3_MAXIRQ; irq++) { gicv3_cache_target_cpustate(s, irq); } } void gicv3_set_gicv3state(CPUState *cpu, GICv3CPUState *s); #endif /* QEMU_ARM_GICV3_INTERNAL_H */