| /* |
| * Copyright (C) 2012,2013 - ARM Ltd |
| * Author: Marc Zyngier <marc.zyngier@arm.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, see <http://www.gnu.org/licenses/>. |
| */ |
| |
| #ifndef __ARM64_KVM_ARM_H__ |
| #define __ARM64_KVM_ARM_H__ |
| |
| #include <asm/esr.h> |
| #include <asm/memory.h> |
| #include <asm/types.h> |
| |
| /* Hyp Configuration Register (HCR) bits */ |
| #define HCR_ID (UL(1) << 33) |
| #define HCR_CD (UL(1) << 32) |
| #define HCR_RW_SHIFT 31 |
| #define HCR_RW (UL(1) << HCR_RW_SHIFT) |
| #define HCR_TRVM (UL(1) << 30) |
| #define HCR_HCD (UL(1) << 29) |
| #define HCR_TDZ (UL(1) << 28) |
| #define HCR_TGE (UL(1) << 27) |
| #define HCR_TVM (UL(1) << 26) |
| #define HCR_TTLB (UL(1) << 25) |
| #define HCR_TPU (UL(1) << 24) |
| #define HCR_TPC (UL(1) << 23) |
| #define HCR_TSW (UL(1) << 22) |
| #define HCR_TAC (UL(1) << 21) |
| #define HCR_TIDCP (UL(1) << 20) |
| #define HCR_TSC (UL(1) << 19) |
| #define HCR_TID3 (UL(1) << 18) |
| #define HCR_TID2 (UL(1) << 17) |
| #define HCR_TID1 (UL(1) << 16) |
| #define HCR_TID0 (UL(1) << 15) |
| #define HCR_TWE (UL(1) << 14) |
| #define HCR_TWI (UL(1) << 13) |
| #define HCR_DC (UL(1) << 12) |
| #define HCR_BSU (3 << 10) |
| #define HCR_BSU_IS (UL(1) << 10) |
| #define HCR_FB (UL(1) << 9) |
| #define HCR_VA (UL(1) << 8) |
| #define HCR_VI (UL(1) << 7) |
| #define HCR_VF (UL(1) << 6) |
| #define HCR_AMO (UL(1) << 5) |
| #define HCR_IMO (UL(1) << 4) |
| #define HCR_FMO (UL(1) << 3) |
| #define HCR_PTW (UL(1) << 2) |
| #define HCR_SWIO (UL(1) << 1) |
| #define HCR_VM (UL(1) << 0) |
| |
| /* |
| * The bits we set in HCR: |
| * RW: 64bit by default, can be overriden for 32bit VMs |
| * TAC: Trap ACTLR |
| * TSC: Trap SMC |
| * TVM: Trap VM ops (until M+C set in SCTLR_EL1) |
| * TSW: Trap cache operations by set/way |
| * TWE: Trap WFE |
| * 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_FLAGS (HCR_TSC | HCR_TSW | HCR_TWE | HCR_TWI | HCR_VM | \ |
| HCR_TVM | HCR_BSU_IS | HCR_FB | HCR_TAC | \ |
| HCR_AMO | HCR_SWIO | HCR_TIDCP | HCR_RW) |
| #define HCR_VIRT_EXCP_MASK (HCR_VA | HCR_VI | HCR_VF) |
| #define HCR_INT_OVERRIDE (HCR_FMO | HCR_IMO) |
| |
| |
| /* Hyp System Control Register (SCTLR_EL2) bits */ |
| #define SCTLR_EL2_EE (1 << 25) |
| #define SCTLR_EL2_WXN (1 << 19) |
| #define SCTLR_EL2_I (1 << 12) |
| #define SCTLR_EL2_SA (1 << 3) |
| #define SCTLR_EL2_C (1 << 2) |
| #define SCTLR_EL2_A (1 << 1) |
| #define SCTLR_EL2_M 1 |
| #define SCTLR_EL2_FLAGS (SCTLR_EL2_M | SCTLR_EL2_A | SCTLR_EL2_C | \ |
| SCTLR_EL2_SA | SCTLR_EL2_I) |
| |
| /* TCR_EL2 Registers bits */ |
| #define TCR_EL2_TBI (1 << 20) |
| #define TCR_EL2_PS (7 << 16) |
| #define TCR_EL2_PS_40B (2 << 16) |
| #define TCR_EL2_TG0 (1 << 14) |
| #define TCR_EL2_SH0 (3 << 12) |
| #define TCR_EL2_ORGN0 (3 << 10) |
| #define TCR_EL2_IRGN0 (3 << 8) |
| #define TCR_EL2_T0SZ 0x3f |
| #define TCR_EL2_MASK (TCR_EL2_TG0 | TCR_EL2_SH0 | \ |
| TCR_EL2_ORGN0 | TCR_EL2_IRGN0 | TCR_EL2_T0SZ) |
| |
| #define TCR_EL2_FLAGS (TCR_EL2_PS_40B) |
| |
| /* VTCR_EL2 Registers bits */ |
| #define VTCR_EL2_PS_MASK (7 << 16) |
| #define VTCR_EL2_TG0_MASK (1 << 14) |
| #define VTCR_EL2_TG0_4K (0 << 14) |
| #define VTCR_EL2_TG0_64K (1 << 14) |
| #define VTCR_EL2_SH0_MASK (3 << 12) |
| #define VTCR_EL2_SH0_INNER (3 << 12) |
| #define VTCR_EL2_ORGN0_MASK (3 << 10) |
| #define VTCR_EL2_ORGN0_WBWA (1 << 10) |
| #define VTCR_EL2_IRGN0_MASK (3 << 8) |
| #define VTCR_EL2_IRGN0_WBWA (1 << 8) |
| #define VTCR_EL2_SL0_MASK (3 << 6) |
| #define VTCR_EL2_SL0_LVL1 (1 << 6) |
| #define VTCR_EL2_T0SZ_MASK 0x3f |
| #define VTCR_EL2_T0SZ_40B 24 |
| |
| /* |
| * We configure the Stage-2 page tables to always restrict the IPA space to be |
| * 40 bits wide (T0SZ = 24). Systems with a PARange smaller than 40 bits are |
| * not known to exist and will break with this configuration. |
| * |
| * VTCR_EL2.PS is extracted from ID_AA64MMFR0_EL1.PARange at boot time |
| * (see hyp-init.S). |
| * |
| * Note that when using 4K pages, we concatenate two first level page tables |
| * together. |
| * |
| * The magic numbers used for VTTBR_X in this patch can be found in Tables |
| * D4-23 and D4-25 in ARM DDI 0487A.b. |
| */ |
| #ifdef CONFIG_ARM64_64K_PAGES |
| /* |
| * Stage2 translation configuration: |
| * 40bits input (T0SZ = 24) |
| * 64kB pages (TG0 = 1) |
| * 2 level page tables (SL = 1) |
| */ |
| #define VTCR_EL2_FLAGS (VTCR_EL2_TG0_64K | VTCR_EL2_SH0_INNER | \ |
| VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \ |
| VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B) |
| #define VTTBR_X (38 - VTCR_EL2_T0SZ_40B) |
| #else |
| /* |
| * Stage2 translation configuration: |
| * 40bits input (T0SZ = 24) |
| * 4kB pages (TG0 = 0) |
| * 3 level page tables (SL = 1) |
| */ |
| #define VTCR_EL2_FLAGS (VTCR_EL2_TG0_4K | VTCR_EL2_SH0_INNER | \ |
| VTCR_EL2_ORGN0_WBWA | VTCR_EL2_IRGN0_WBWA | \ |
| VTCR_EL2_SL0_LVL1 | VTCR_EL2_T0SZ_40B) |
| #define VTTBR_X (37 - VTCR_EL2_T0SZ_40B) |
| #endif |
| |
| #define VTTBR_BADDR_SHIFT (VTTBR_X - 1) |
| #define VTTBR_BADDR_MASK (((UL(1) << (PHYS_MASK_SHIFT - VTTBR_X)) - 1) << VTTBR_BADDR_SHIFT) |
| #define VTTBR_VMID_SHIFT (UL(48)) |
| #define VTTBR_VMID_MASK (UL(0xFF) << VTTBR_VMID_SHIFT) |
| |
| /* Hyp System Trap Register */ |
| #define HSTR_EL2_TTEE (1 << 16) |
| #define HSTR_EL2_T(x) (1 << x) |
| |
| /* Hyp Coproccessor Trap Register Shifts */ |
| #define CPTR_EL2_TFP_SHIFT 10 |
| |
| /* Hyp Coprocessor Trap Register */ |
| #define CPTR_EL2_TCPAC (1 << 31) |
| #define CPTR_EL2_TTA (1 << 20) |
| #define CPTR_EL2_TFP (1 << CPTR_EL2_TFP_SHIFT) |
| |
| /* Hyp Debug Configuration Register bits */ |
| #define MDCR_EL2_TDRA (1 << 11) |
| #define MDCR_EL2_TDOSA (1 << 10) |
| #define MDCR_EL2_TDA (1 << 9) |
| #define MDCR_EL2_TDE (1 << 8) |
| #define MDCR_EL2_HPME (1 << 7) |
| #define MDCR_EL2_TPM (1 << 6) |
| #define MDCR_EL2_TPMCR (1 << 5) |
| #define MDCR_EL2_HPMN_MASK (0x1F) |
| |
| /* For compatibility with fault code shared with 32-bit */ |
| #define FSC_FAULT ESR_ELx_FSC_FAULT |
| #define FSC_ACCESS ESR_ELx_FSC_ACCESS |
| #define FSC_PERM ESR_ELx_FSC_PERM |
| |
| /* Hyp Prefetch Fault Address Register (HPFAR/HDFAR) */ |
| #define HPFAR_MASK (~UL(0xf)) |
| |
| #endif /* __ARM64_KVM_ARM_H__ */ |
