1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * RISC-V processor specific defines 4 * 5 * Copyright (C) 2021 Western Digital Corporation or its affiliates. 6 */ 7 #ifndef SELFTEST_KVM_PROCESSOR_H 8 #define SELFTEST_KVM_PROCESSOR_H 9 10 #include "kvm_util.h" 11 #include <linux/stringify.h> 12 13 static inline uint64_t __kvm_reg_id(uint64_t type, uint64_t idx, 14 uint64_t size) 15 { 16 return KVM_REG_RISCV | type | idx | size; 17 } 18 19 #if __riscv_xlen == 64 20 #define KVM_REG_SIZE_ULONG KVM_REG_SIZE_U64 21 #else 22 #define KVM_REG_SIZE_ULONG KVM_REG_SIZE_U32 23 #endif 24 25 #define RISCV_CONFIG_REG(name) __kvm_reg_id(KVM_REG_RISCV_CONFIG, \ 26 KVM_REG_RISCV_CONFIG_REG(name), \ 27 KVM_REG_SIZE_ULONG) 28 29 #define RISCV_CORE_REG(name) __kvm_reg_id(KVM_REG_RISCV_CORE, \ 30 KVM_REG_RISCV_CORE_REG(name), \ 31 KVM_REG_SIZE_ULONG) 32 33 #define RISCV_CSR_REG(name) __kvm_reg_id(KVM_REG_RISCV_CSR, \ 34 KVM_REG_RISCV_CSR_REG(name), \ 35 KVM_REG_SIZE_ULONG) 36 37 #define RISCV_TIMER_REG(name) __kvm_reg_id(KVM_REG_RISCV_TIMER, \ 38 KVM_REG_RISCV_TIMER_REG(name), \ 39 KVM_REG_SIZE_U64) 40 41 #define RISCV_ISA_EXT_REG(idx) __kvm_reg_id(KVM_REG_RISCV_ISA_EXT, \ 42 idx, KVM_REG_SIZE_ULONG) 43 44 /* L3 index Bit[47:39] */ 45 #define PGTBL_L3_INDEX_MASK 0x0000FF8000000000ULL 46 #define PGTBL_L3_INDEX_SHIFT 39 47 #define PGTBL_L3_BLOCK_SHIFT 39 48 #define PGTBL_L3_BLOCK_SIZE 0x0000008000000000ULL 49 #define PGTBL_L3_MAP_MASK (~(PGTBL_L3_BLOCK_SIZE - 1)) 50 /* L2 index Bit[38:30] */ 51 #define PGTBL_L2_INDEX_MASK 0x0000007FC0000000ULL 52 #define PGTBL_L2_INDEX_SHIFT 30 53 #define PGTBL_L2_BLOCK_SHIFT 30 54 #define PGTBL_L2_BLOCK_SIZE 0x0000000040000000ULL 55 #define PGTBL_L2_MAP_MASK (~(PGTBL_L2_BLOCK_SIZE - 1)) 56 /* L1 index Bit[29:21] */ 57 #define PGTBL_L1_INDEX_MASK 0x000000003FE00000ULL 58 #define PGTBL_L1_INDEX_SHIFT 21 59 #define PGTBL_L1_BLOCK_SHIFT 21 60 #define PGTBL_L1_BLOCK_SIZE 0x0000000000200000ULL 61 #define PGTBL_L1_MAP_MASK (~(PGTBL_L1_BLOCK_SIZE - 1)) 62 /* L0 index Bit[20:12] */ 63 #define PGTBL_L0_INDEX_MASK 0x00000000001FF000ULL 64 #define PGTBL_L0_INDEX_SHIFT 12 65 #define PGTBL_L0_BLOCK_SHIFT 12 66 #define PGTBL_L0_BLOCK_SIZE 0x0000000000001000ULL 67 #define PGTBL_L0_MAP_MASK (~(PGTBL_L0_BLOCK_SIZE - 1)) 68 69 #define PGTBL_PTE_ADDR_MASK 0x003FFFFFFFFFFC00ULL 70 #define PGTBL_PTE_ADDR_SHIFT 10 71 #define PGTBL_PTE_RSW_MASK 0x0000000000000300ULL 72 #define PGTBL_PTE_RSW_SHIFT 8 73 #define PGTBL_PTE_DIRTY_MASK 0x0000000000000080ULL 74 #define PGTBL_PTE_DIRTY_SHIFT 7 75 #define PGTBL_PTE_ACCESSED_MASK 0x0000000000000040ULL 76 #define PGTBL_PTE_ACCESSED_SHIFT 6 77 #define PGTBL_PTE_GLOBAL_MASK 0x0000000000000020ULL 78 #define PGTBL_PTE_GLOBAL_SHIFT 5 79 #define PGTBL_PTE_USER_MASK 0x0000000000000010ULL 80 #define PGTBL_PTE_USER_SHIFT 4 81 #define PGTBL_PTE_EXECUTE_MASK 0x0000000000000008ULL 82 #define PGTBL_PTE_EXECUTE_SHIFT 3 83 #define PGTBL_PTE_WRITE_MASK 0x0000000000000004ULL 84 #define PGTBL_PTE_WRITE_SHIFT 2 85 #define PGTBL_PTE_READ_MASK 0x0000000000000002ULL 86 #define PGTBL_PTE_READ_SHIFT 1 87 #define PGTBL_PTE_PERM_MASK (PGTBL_PTE_ACCESSED_MASK | \ 88 PGTBL_PTE_DIRTY_MASK | \ 89 PGTBL_PTE_EXECUTE_MASK | \ 90 PGTBL_PTE_WRITE_MASK | \ 91 PGTBL_PTE_READ_MASK) 92 #define PGTBL_PTE_VALID_MASK 0x0000000000000001ULL 93 #define PGTBL_PTE_VALID_SHIFT 0 94 95 #define PGTBL_PAGE_SIZE PGTBL_L0_BLOCK_SIZE 96 #define PGTBL_PAGE_SIZE_SHIFT PGTBL_L0_BLOCK_SHIFT 97 98 #define SATP_PPN _AC(0x00000FFFFFFFFFFF, UL) 99 #define SATP_MODE_39 _AC(0x8000000000000000, UL) 100 #define SATP_MODE_48 _AC(0x9000000000000000, UL) 101 #define SATP_ASID_BITS 16 102 #define SATP_ASID_SHIFT 44 103 #define SATP_ASID_MASK _AC(0xFFFF, UL) 104 105 #define SBI_EXT_EXPERIMENTAL_START 0x08000000 106 #define SBI_EXT_EXPERIMENTAL_END 0x08FFFFFF 107 108 #define KVM_RISCV_SELFTESTS_SBI_EXT SBI_EXT_EXPERIMENTAL_END 109 #define KVM_RISCV_SELFTESTS_SBI_UCALL 0 110 #define KVM_RISCV_SELFTESTS_SBI_UNEXP 1 111 112 struct sbiret { 113 long error; 114 long value; 115 }; 116 117 struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, 118 unsigned long arg1, unsigned long arg2, 119 unsigned long arg3, unsigned long arg4, 120 unsigned long arg5); 121 122 #endif /* SELFTEST_KVM_PROCESSOR_H */ 123