| /* |
| * Copyright (C) 2012 - Virtual Open Systems and Columbia University |
| * Author: Christoffer Dall <c.dall@virtualopensystems.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License, version 2, as |
| * published by the Free Software Foundation. |
| * |
| * 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, write to the Free Software |
| * Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
| */ |
| |
| #ifndef __ARM_KVM_ARM_H__ |
| #define __ARM_KVM_ARM_H__ |
| |
| #include <linux/types.h> |
| |
| /* Hyp Configuration Register (HCR) bits */ |
| #define HCR_TGE (1 << 27) |
| #define HCR_TVM (1 << 26) |
| #define HCR_TTLB (1 << 25) |
| #define HCR_TPU (1 << 24) |
| #define HCR_TPC (1 << 23) |
| #define HCR_TSW (1 << 22) |
| #define HCR_TAC (1 << 21) |
| #define HCR_TIDCP (1 << 20) |
| #define HCR_TSC (1 << 19) |
| #define HCR_TID3 (1 << 18) |
| #define HCR_TID2 (1 << 17) |
| #define HCR_TID1 (1 << 16) |
| #define HCR_TID0 (1 << 15) |
| #define HCR_TWE (1 << 14) |
| #define HCR_TWI (1 << 13) |
| #define HCR_DC (1 << 12) |
| #define HCR_BSU (3 << 10) |
| #define HCR_BSU_IS (1 << 10) |
| #define HCR_FB (1 << 9) |
| #define HCR_VA (1 << 8) |
| #define HCR_VI (1 << 7) |
| #define HCR_VF (1 << 6) |
| #define HCR_AMO (1 << 5) |
| #define HCR_IMO (1 << 4) |
| #define HCR_FMO (1 << 3) |
| #define HCR_PTW (1 << 2) |
| #define HCR_SWIO (1 << 1) |
| #define HCR_VM 1 |
| |
| /* |
| * The bits we set in HCR: |
| * TAC: Trap ACTLR |
| * TSC: Trap SMC |
| * TSW: Trap cache operations by set/way |
| * TWI: Trap WFI |
| * TIDCP: Trap L2CTLR/L2ECTLR |
| * BSU_IS: Upgrade barriers to the inner shareable domain |
| * FB: Force broadcast of all maintainance operations |
| * AMO: Override CPSR.A and enable signaling with VA |
| * IMO: Override CPSR.I and enable signaling with VI |
| * FMO: Override CPSR.F and enable signaling with VF |
| * SWIO: Turn set/way invalidates into set/way clean+invalidate |
| */ |
| #define HCR_GUEST_MASK (HCR_TSC | HCR_TSW | HCR_TWI | HCR_VM | HCR_BSU_IS | \ |
| HCR_FB | HCR_TAC | HCR_AMO | HCR_IMO | HCR_FMO | \ |
| HCR_SWIO | HCR_TIDCP) |
| #define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF) |
| |
| /* System Control Register (SCTLR) bits */ |
| #define SCTLR_TE (1 << 30) |
| #define SCTLR_EE (1 << 25) |
| #define SCTLR_V (1 << 13) |
| |
| /* Hyp System Control Register (HSCTLR) bits */ |
| #define HSCTLR_TE (1 << 30) |
| #define HSCTLR_EE (1 << 25) |
| #define HSCTLR_FI (1 << 21) |
| #define HSCTLR_WXN (1 << 19) |
| #define HSCTLR_I (1 << 12) |
| #define HSCTLR_C (1 << 2) |
| #define HSCTLR_A (1 << 1) |
| #define HSCTLR_M 1 |
| #define HSCTLR_MASK (HSCTLR_M | HSCTLR_A | HSCTLR_C | HSCTLR_I | \ |
| HSCTLR_WXN | HSCTLR_FI | HSCTLR_EE | HSCTLR_TE) |
| |
| /* TTBCR and HTCR Registers bits */ |
| #define TTBCR_EAE (1 << 31) |
| #define TTBCR_IMP (1 << 30) |
| #define TTBCR_SH1 (3 << 28) |
| #define TTBCR_ORGN1 (3 << 26) |
| #define TTBCR_IRGN1 (3 << 24) |
| #define TTBCR_EPD1 (1 << 23) |
| #define TTBCR_A1 (1 << 22) |
| #define TTBCR_T1SZ (3 << 16) |
| #define TTBCR_SH0 (3 << 12) |
| #define TTBCR_ORGN0 (3 << 10) |
| #define TTBCR_IRGN0 (3 << 8) |
| #define TTBCR_EPD0 (1 << 7) |
| #define TTBCR_T0SZ 3 |
| #define HTCR_MASK (TTBCR_T0SZ | TTBCR_IRGN0 | TTBCR_ORGN0 | TTBCR_SH0) |
| |
| /* Hyp System Trap Register */ |
| #define HSTR_T(x) (1 << x) |
| #define HSTR_TTEE (1 << 16) |
| #define HSTR_TJDBX (1 << 17) |
| |
| /* Hyp Coprocessor Trap Register */ |
| #define HCPTR_TCP(x) (1 << x) |
| #define HCPTR_TCP_MASK (0x3fff) |
| #define HCPTR_TASE (1 << 15) |
| #define HCPTR_TTA (1 << 20) |
| #define HCPTR_TCPAC (1 << 31) |
| |
| /* Hyp Debug Configuration Register bits */ |
| #define HDCR_TDRA (1 << 11) |
| #define HDCR_TDOSA (1 << 10) |
| #define HDCR_TDA (1 << 9) |
| #define HDCR_TDE (1 << 8) |
| #define HDCR_HPME (1 << 7) |
| #define HDCR_TPM (1 << 6) |
| #define HDCR_TPMCR (1 << 5) |
| #define HDCR_HPMN_MASK (0x1F) |
| |
| /* |
| * The architecture supports 40-bit IPA as input to the 2nd stage translations |
| * and PTRS_PER_S2_PGD becomes 1024, because each entry covers 1GB of address |
| * space. |
| */ |
| #define KVM_PHYS_SHIFT (40) |
| #define KVM_PHYS_SIZE (1ULL << KVM_PHYS_SHIFT) |
| #define KVM_PHYS_MASK (KVM_PHYS_SIZE - 1ULL) |
| #define PTRS_PER_S2_PGD (1ULL << (KVM_PHYS_SHIFT - 30)) |
| #define S2_PGD_ORDER get_order(PTRS_PER_S2_PGD * sizeof(pgd_t)) |
| #define S2_PGD_SIZE (1 << S2_PGD_ORDER) |
| |
| /* Virtualization Translation Control Register (VTCR) bits */ |
| #define VTCR_SH0 (3 << 12) |
| #define VTCR_ORGN0 (3 << 10) |
| #define VTCR_IRGN0 (3 << 8) |
| #define VTCR_SL0 (3 << 6) |
| #define VTCR_S (1 << 4) |
| #define VTCR_T0SZ (0xf) |
| #define VTCR_MASK (VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0 | VTCR_SL0 | \ |
| VTCR_S | VTCR_T0SZ) |
| #define VTCR_HTCR_SH (VTCR_SH0 | VTCR_ORGN0 | VTCR_IRGN0) |
| #define VTCR_SL_L2 (0 << 6) /* Starting-level: 2 */ |
| #define VTCR_SL_L1 (1 << 6) /* Starting-level: 1 */ |
| #define KVM_VTCR_SL0 VTCR_SL_L1 |
| /* stage-2 input address range defined as 2^(32-T0SZ) */ |
| #define KVM_T0SZ (32 - KVM_PHYS_SHIFT) |
| #define KVM_VTCR_T0SZ (KVM_T0SZ & VTCR_T0SZ) |
| #define KVM_VTCR_S ((KVM_VTCR_T0SZ << 1) & VTCR_S) |
| |
| /* Virtualization Translation Table Base Register (VTTBR) bits */ |
| #if KVM_VTCR_SL0 == VTCR_SL_L2 /* see ARM DDI 0406C: B4-1720 */ |
| #define VTTBR_X (14 - KVM_T0SZ) |
| #else |
| #define VTTBR_X (5 - KVM_T0SZ) |
| #endif |
| #define VTTBR_BADDR_SHIFT (VTTBR_X - 1) |
| #define VTTBR_BADDR_MASK (((1LLU << (40 - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT) |
| #define VTTBR_VMID_SHIFT (48LLU) |
| #define VTTBR_VMID_MASK (0xffLLU << VTTBR_VMID_SHIFT) |
| |
| /* Hyp Syndrome Register (HSR) bits */ |
| #define HSR_EC_SHIFT (26) |
| #define HSR_EC (0x3fU << HSR_EC_SHIFT) |
| #define HSR_IL (1U << 25) |
| #define HSR_ISS (HSR_IL - 1) |
| #define HSR_ISV_SHIFT (24) |
| #define HSR_ISV (1U << HSR_ISV_SHIFT) |
| #define HSR_SRT_SHIFT (16) |
| #define HSR_SRT_MASK (0xf << HSR_SRT_SHIFT) |
| #define HSR_FSC (0x3f) |
| #define HSR_FSC_TYPE (0x3c) |
| #define HSR_SSE (1 << 21) |
| #define HSR_WNR (1 << 6) |
| #define HSR_CV_SHIFT (24) |
| #define HSR_CV (1U << HSR_CV_SHIFT) |
| #define HSR_COND_SHIFT (20) |
| #define HSR_COND (0xfU << HSR_COND_SHIFT) |
| |
| #define FSC_FAULT (0x04) |
| #define FSC_PERM (0x0c) |
| |
| /* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */ |
| #define HPFAR_MASK (~0xf) |
| |
| #define HSR_EC_UNKNOWN (0x00) |
| #define HSR_EC_WFI (0x01) |
| #define HSR_EC_CP15_32 (0x03) |
| #define HSR_EC_CP15_64 (0x04) |
| #define HSR_EC_CP14_MR (0x05) |
| #define HSR_EC_CP14_LS (0x06) |
| #define HSR_EC_CP_0_13 (0x07) |
| #define HSR_EC_CP10_ID (0x08) |
| #define HSR_EC_JAZELLE (0x09) |
| #define HSR_EC_BXJ (0x0A) |
| #define HSR_EC_CP14_64 (0x0C) |
| #define HSR_EC_SVC_HYP (0x11) |
| #define HSR_EC_HVC (0x12) |
| #define HSR_EC_SMC (0x13) |
| #define HSR_EC_IABT (0x20) |
| #define HSR_EC_IABT_HYP (0x21) |
| #define HSR_EC_DABT (0x24) |
| #define HSR_EC_DABT_HYP (0x25) |
| |
| #define HSR_HVC_IMM_MASK ((1UL << 16) - 1) |
| |
| #define HSR_DABT_S1PTW (1U << 7) |
| #define HSR_DABT_CM (1U << 8) |
| #define HSR_DABT_EA (1U << 9) |
| |
| #endif /* __ARM_KVM_ARM_H__ */ |
