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qemu/hw/intc/gicv3_internal.h
Peter Maydell e2d5e189aa hw/intc/arm_gicv3: Update ID and feature registers for GICv4 
Update the various GIC ID and feature registers for GICv4:
 * PIDR2 [7:4] is the GIC architecture revision
 * GICD_TYPER.DVIS is 1 to indicate direct vLPI injection support
 * GICR_TYPER.VLPIS is 1 to indicate redistributor support for vLPIs
 * GITS_TYPER.VIRTUAL is 1 to indicate vLPI support
 * GITS_TYPER.VMOVP is 1 to indicate that our VMOVP implementation
   handles cross-ITS synchronization for the guest
 * ICH_VTR_EL2.nV4 is 0 to indicate direct vLPI injection support

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220408141550.1271295-38-peter.maydell@linaro.org
2022-04-22 14:44:53 +01:00

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/*
* 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 <http://www.gnu.org/licenses/>.
*/
#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 */
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