/* * Copyright (C) 2012 - Virtual Open Systems and Columbia University * Author: Christoffer Dall * * 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 /* 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) /* 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 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 #endif /* __ARM_KVM_ARM_H__ */