261 lines
8.2 KiB
C
261 lines
8.2 KiB
C
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/*
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* Copyright (C) 2012,2013 - ARM Ltd
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* Author: Marc Zyngier <marc.zyngier@arm.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef __ARM64_KVM_ARM_H__
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#define __ARM64_KVM_ARM_H__
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#include <asm/memory.h>
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#include <asm/types.h>
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/* Hyp Configuration Register (HCR) bits */
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#define HCR_ID (UL(1) << 33)
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#define HCR_CD (UL(1) << 32)
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#define HCR_RW_SHIFT 31
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#define HCR_RW (UL(1) << HCR_RW_SHIFT)
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#define HCR_TRVM (UL(1) << 30)
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#define HCR_HCD (UL(1) << 29)
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#define HCR_TDZ (UL(1) << 28)
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#define HCR_TGE (UL(1) << 27)
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#define HCR_TVM (UL(1) << 26)
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#define HCR_TTLB (UL(1) << 25)
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#define HCR_TPU (UL(1) << 24)
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#define HCR_TPC (UL(1) << 23)
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#define HCR_TSW (UL(1) << 22)
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#define HCR_TAC (UL(1) << 21)
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#define HCR_TIDCP (UL(1) << 20)
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#define HCR_TSC (UL(1) << 19)
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#define HCR_TID3 (UL(1) << 18)
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#define HCR_TID2 (UL(1) << 17)
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#define HCR_TID1 (UL(1) << 16)
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#define HCR_TID0 (UL(1) << 15)
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#define HCR_TWE (UL(1) << 14)
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#define HCR_TWI (UL(1) << 13)
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#define HCR_DC (UL(1) << 12)
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#define HCR_BSU (3 << 10)
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#define HCR_BSU_IS (UL(1) << 10)
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#define HCR_FB (UL(1) << 9)
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#define HCR_VA (UL(1) << 8)
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#define HCR_VI (UL(1) << 7)
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#define HCR_VF (UL(1) << 6)
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#define HCR_AMO (UL(1) << 5)
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#define HCR_IMO (UL(1) << 4)
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#define HCR_FMO (UL(1) << 3)
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#define HCR_PTW (UL(1) << 2)
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#define HCR_SWIO (UL(1) << 1)
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#define HCR_VM (UL(1) << 0)
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/*
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* The bits we set in HCR:
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* RW: 64bit by default, can be overriden for 32bit VMs
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* TAC: Trap ACTLR
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* TSC: Trap SMC
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* TVM: Trap VM ops (until M+C set in SCTLR_EL1)
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* TSW: Trap cache operations by set/way
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* TWE: Trap WFE
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* TWI: Trap WFI
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* TIDCP: Trap L2CTLR/L2ECTLR
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* BSU_IS: Upgrade barriers to the inner shareable domain
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* FB: Force broadcast of all maintainance operations
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* AMO: Override CPSR.A and enable signaling with VA
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* IMO: Override CPSR.I and enable signaling with VI
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* FMO: Override CPSR.F and enable signaling with VF
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* SWIO: Turn set/way invalidates into set/way clean+invalidate
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*/
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#define HCR_GUEST_FLAGS (HCR_TSC | HCR_TSW | HCR_TWE | HCR_TWI | HCR_VM | \
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HCR_TVM | HCR_BSU_IS | HCR_FB | HCR_TAC | \
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HCR_AMO | HCR_SWIO | HCR_TIDCP | HCR_RW)
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#define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF)
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#define HCR_INT_OVERRIDE (HCR_FMO | HCR_IMO)
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/* Hyp System Control Register (SCTLR_EL2) bits */
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#define SCTLR_EL2_EE (1 << 25)
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#define SCTLR_EL2_WXN (1 << 19)
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#define SCTLR_EL2_I (1 << 12)
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#define SCTLR_EL2_SA (1 << 3)
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#define SCTLR_EL2_C (1 << 2)
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#define SCTLR_EL2_A (1 << 1)
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#define SCTLR_EL2_M 1
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#define SCTLR_EL2_FLAGS (SCTLR_EL2_M | SCTLR_EL2_A | SCTLR_EL2_C | \
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SCTLR_EL2_SA | SCTLR_EL2_I)
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/* TCR_EL2 Registers bits */
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#define TCR_EL2_TBI (1 << 20)
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#define TCR_EL2_PS (7 << 16)
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#define TCR_EL2_PS_40B (2 << 16)
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#define TCR_EL2_TG0 (1 << 14)
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#define TCR_EL2_SH0 (3 << 12)
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#define TCR_EL2_ORGN0 (3 << 10)
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#define TCR_EL2_IRGN0 (3 << 8)
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#define TCR_EL2_T0SZ 0x3f
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#define TCR_EL2_MASK (TCR_EL2_TG0 | TCR_EL2_SH0 | \
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TCR_EL2_ORGN0 | TCR_EL2_IRGN0 | TCR_EL2_T0SZ)
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#define TCR_EL2_FLAGS (TCR_EL2_PS_40B)
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/* VTCR_EL2 Registers bits */
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#define VTCR_EL2_PS_MASK (7 << 16)
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#define VTCR_EL2_TG0_MASK (1 << 14)
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#define VTCR_EL2_TG0_4K (0 << 14)
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#define VTCR_EL2_TG0_64K (1 << 14)
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#define VTCR_EL2_SH0_MASK (3 << 12)
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#define VTCR_EL2_SH0_INNER (3 << 12)
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#define VTCR_EL2_ORGN0_MASK (3 << 10)
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#define VTCR_EL2_ORGN0_WBWA (1 << 10)
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#define VTCR_EL2_IRGN0_MASK (3 << 8)
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#define VTCR_EL2_IRGN0_WBWA (1 << 8)
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#define VTCR_EL2_SL0_MASK (3 << 6)
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#define VTCR_EL2_SL0_LVL1 (1 << 6)
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#define VTCR_EL2_T0SZ_MASK 0x3f
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#define VTCR_EL2_T0SZ_40B 24
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/*
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* We configure the Stage-2 page tables to always restrict the IPA space to be
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* 40 bits wide (T0SZ = 24). Systems with a PARange smaller than 40 bits are
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* not known to exist and will break with this configuration.
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*
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* Note that when using 4K pages, we concatenate two first level page tables
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* together.
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*
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* The magic numbers used for VTTBR_X in this patch can be found in Tables
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* D4-23 and D4-25 in ARM DDI 0487A.b.
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*/
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#ifdef CONFIG_ARM64_64K_PAGES
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/*
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* Stage2 translation configuration:
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* 40bits output (PS = 2)
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* 40bits input (T0SZ = 24)
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* 64kB pages (TG0 = 1)
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* 2 level page tables (SL = 1)
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*/
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#define VTCR_EL2_FLAGS (VTCR_EL2_TG0_64K | VTCR_EL2_SH0_INNER | \
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VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
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VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B)
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#define VTTBR_X (38 - VTCR_EL2_T0SZ_40B)
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#else
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/*
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* Stage2 translation configuration:
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* 40bits output (PS = 2)
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* 40bits input (T0SZ = 24)
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* 4kB pages (TG0 = 0)
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* 3 level page tables (SL = 1)
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*/
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#define VTCR_EL2_FLAGS (VTCR_EL2_TG0_4K | VTCR_EL2_SH0_INNER | \
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VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \
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VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B)
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#define VTTBR_X (37 - VTCR_EL2_T0SZ_40B)
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#endif
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#define VTTBR_BADDR_SHIFT (VTTBR_X - 1)
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#define VTTBR_BADDR_MASK (((UL(1) << (PHYS_MASK_SHIFT - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT)
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#define VTTBR_VMID_SHIFT (UL(48))
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#define VTTBR_VMID_MASK (UL(0xFF) << VTTBR_VMID_SHIFT)
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/* Hyp System Trap Register */
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#define HSTR_EL2_TTEE (1 << 16)
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#define HSTR_EL2_T(x) (1 << x)
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/* Hyp Coprocessor Trap Register */
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#define CPTR_EL2_TCPAC (1 << 31)
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#define CPTR_EL2_TTA (1 << 20)
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#define CPTR_EL2_TFP (1 << 10)
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/* Hyp Debug Configuration Register bits */
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#define MDCR_EL2_TDRA (1 << 11)
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#define MDCR_EL2_TDOSA (1 << 10)
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#define MDCR_EL2_TDA (1 << 9)
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#define MDCR_EL2_TDE (1 << 8)
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#define MDCR_EL2_HPME (1 << 7)
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#define MDCR_EL2_TPM (1 << 6)
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#define MDCR_EL2_TPMCR (1 << 5)
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#define MDCR_EL2_HPMN_MASK (0x1F)
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/* Exception Syndrome Register (ESR) bits */
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#define ESR_EL2_EC_SHIFT (26)
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#define ESR_EL2_EC (UL(0x3f) << ESR_EL2_EC_SHIFT)
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#define ESR_EL2_IL (UL(1) << 25)
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#define ESR_EL2_ISS (ESR_EL2_IL - 1)
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#define ESR_EL2_ISV_SHIFT (24)
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#define ESR_EL2_ISV (UL(1) << ESR_EL2_ISV_SHIFT)
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#define ESR_EL2_SAS_SHIFT (22)
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#define ESR_EL2_SAS (UL(3) << ESR_EL2_SAS_SHIFT)
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#define ESR_EL2_SSE (1 << 21)
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#define ESR_EL2_SRT_SHIFT (16)
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#define ESR_EL2_SRT_MASK (0x1f << ESR_EL2_SRT_SHIFT)
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#define ESR_EL2_SF (1 << 15)
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#define ESR_EL2_AR (1 << 14)
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#define ESR_EL2_EA (1 << 9)
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#define ESR_EL2_CM (1 << 8)
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#define ESR_EL2_S1PTW (1 << 7)
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#define ESR_EL2_WNR (1 << 6)
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#define ESR_EL2_FSC (0x3f)
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#define ESR_EL2_FSC_TYPE (0x3c)
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#define ESR_EL2_CV_SHIFT (24)
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#define ESR_EL2_CV (UL(1) << ESR_EL2_CV_SHIFT)
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#define ESR_EL2_COND_SHIFT (20)
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#define ESR_EL2_COND (UL(0xf) << ESR_EL2_COND_SHIFT)
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#define FSC_FAULT (0x04)
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#define FSC_PERM (0x0c)
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/* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */
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#define HPFAR_MASK (~UL(0xf))
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#define ESR_EL2_EC_UNKNOWN (0x00)
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#define ESR_EL2_EC_WFI (0x01)
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#define ESR_EL2_EC_CP15_32 (0x03)
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#define ESR_EL2_EC_CP15_64 (0x04)
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#define ESR_EL2_EC_CP14_MR (0x05)
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#define ESR_EL2_EC_CP14_LS (0x06)
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#define ESR_EL2_EC_FP_ASIMD (0x07)
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#define ESR_EL2_EC_CP10_ID (0x08)
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#define ESR_EL2_EC_CP14_64 (0x0C)
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#define ESR_EL2_EC_ILL_ISS (0x0E)
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#define ESR_EL2_EC_SVC32 (0x11)
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#define ESR_EL2_EC_HVC32 (0x12)
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#define ESR_EL2_EC_SMC32 (0x13)
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#define ESR_EL2_EC_SVC64 (0x15)
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#define ESR_EL2_EC_HVC64 (0x16)
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#define ESR_EL2_EC_SMC64 (0x17)
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#define ESR_EL2_EC_SYS64 (0x18)
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#define ESR_EL2_EC_IABT (0x20)
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#define ESR_EL2_EC_IABT_HYP (0x21)
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#define ESR_EL2_EC_PC_ALIGN (0x22)
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#define ESR_EL2_EC_DABT (0x24)
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#define ESR_EL2_EC_DABT_HYP (0x25)
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#define ESR_EL2_EC_SP_ALIGN (0x26)
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#define ESR_EL2_EC_FP_EXC32 (0x28)
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#define ESR_EL2_EC_FP_EXC64 (0x2C)
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#define ESR_EL2_EC_SERROR (0x2F)
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#define ESR_EL2_EC_BREAKPT (0x30)
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#define ESR_EL2_EC_BREAKPT_HYP (0x31)
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#define ESR_EL2_EC_SOFTSTP (0x32)
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#define ESR_EL2_EC_SOFTSTP_HYP (0x33)
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#define ESR_EL2_EC_WATCHPT (0x34)
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#define ESR_EL2_EC_WATCHPT_HYP (0x35)
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#define ESR_EL2_EC_BKPT32 (0x38)
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#define ESR_EL2_EC_VECTOR32 (0x3A)
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#define ESR_EL2_EC_BRK64 (0x3C)
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#define ESR_EL2_EC_xABT_xFSR_EXTABT 0x10
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#define ESR_EL2_EC_WFI_ISS_WFE (1 << 0)
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#endif /* __ARM64_KVM_ARM_H__ */
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