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 static inline void get_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t id, 42 unsigned long *addr) 43 { 44 struct kvm_one_reg reg; 45 46 reg.id = id; 47 reg.addr = (unsigned long)addr; 48 vcpu_get_reg(vm, vcpuid, ®); 49 } 50 51 static inline void set_reg(struct kvm_vm *vm, uint32_t vcpuid, uint64_t id, 52 unsigned long val) 53 { 54 struct kvm_one_reg reg; 55 56 reg.id = id; 57 reg.addr = (unsigned long)&val; 58 vcpu_set_reg(vm, vcpuid, ®); 59 } 60 61 /* L3 index Bit[47:39] */ 62 #define PGTBL_L3_INDEX_MASK 0x0000FF8000000000ULL 63 #define PGTBL_L3_INDEX_SHIFT 39 64 #define PGTBL_L3_BLOCK_SHIFT 39 65 #define PGTBL_L3_BLOCK_SIZE 0x0000008000000000ULL 66 #define PGTBL_L3_MAP_MASK (~(PGTBL_L3_BLOCK_SIZE - 1)) 67 /* L2 index Bit[38:30] */ 68 #define PGTBL_L2_INDEX_MASK 0x0000007FC0000000ULL 69 #define PGTBL_L2_INDEX_SHIFT 30 70 #define PGTBL_L2_BLOCK_SHIFT 30 71 #define PGTBL_L2_BLOCK_SIZE 0x0000000040000000ULL 72 #define PGTBL_L2_MAP_MASK (~(PGTBL_L2_BLOCK_SIZE - 1)) 73 /* L1 index Bit[29:21] */ 74 #define PGTBL_L1_INDEX_MASK 0x000000003FE00000ULL 75 #define PGTBL_L1_INDEX_SHIFT 21 76 #define PGTBL_L1_BLOCK_SHIFT 21 77 #define PGTBL_L1_BLOCK_SIZE 0x0000000000200000ULL 78 #define PGTBL_L1_MAP_MASK (~(PGTBL_L1_BLOCK_SIZE - 1)) 79 /* L0 index Bit[20:12] */ 80 #define PGTBL_L0_INDEX_MASK 0x00000000001FF000ULL 81 #define PGTBL_L0_INDEX_SHIFT 12 82 #define PGTBL_L0_BLOCK_SHIFT 12 83 #define PGTBL_L0_BLOCK_SIZE 0x0000000000001000ULL 84 #define PGTBL_L0_MAP_MASK (~(PGTBL_L0_BLOCK_SIZE - 1)) 85 86 #define PGTBL_PTE_ADDR_MASK 0x003FFFFFFFFFFC00ULL 87 #define PGTBL_PTE_ADDR_SHIFT 10 88 #define PGTBL_PTE_RSW_MASK 0x0000000000000300ULL 89 #define PGTBL_PTE_RSW_SHIFT 8 90 #define PGTBL_PTE_DIRTY_MASK 0x0000000000000080ULL 91 #define PGTBL_PTE_DIRTY_SHIFT 7 92 #define PGTBL_PTE_ACCESSED_MASK 0x0000000000000040ULL 93 #define PGTBL_PTE_ACCESSED_SHIFT 6 94 #define PGTBL_PTE_GLOBAL_MASK 0x0000000000000020ULL 95 #define PGTBL_PTE_GLOBAL_SHIFT 5 96 #define PGTBL_PTE_USER_MASK 0x0000000000000010ULL 97 #define PGTBL_PTE_USER_SHIFT 4 98 #define PGTBL_PTE_EXECUTE_MASK 0x0000000000000008ULL 99 #define PGTBL_PTE_EXECUTE_SHIFT 3 100 #define PGTBL_PTE_WRITE_MASK 0x0000000000000004ULL 101 #define PGTBL_PTE_WRITE_SHIFT 2 102 #define PGTBL_PTE_READ_MASK 0x0000000000000002ULL 103 #define PGTBL_PTE_READ_SHIFT 1 104 #define PGTBL_PTE_PERM_MASK (PGTBL_PTE_EXECUTE_MASK | \ 105 PGTBL_PTE_WRITE_MASK | \ 106 PGTBL_PTE_READ_MASK) 107 #define PGTBL_PTE_VALID_MASK 0x0000000000000001ULL 108 #define PGTBL_PTE_VALID_SHIFT 0 109 110 #define PGTBL_PAGE_SIZE PGTBL_L0_BLOCK_SIZE 111 #define PGTBL_PAGE_SIZE_SHIFT PGTBL_L0_BLOCK_SHIFT 112 113 #define SATP_PPN _AC(0x00000FFFFFFFFFFF, UL) 114 #define SATP_MODE_39 _AC(0x8000000000000000, UL) 115 #define SATP_MODE_48 _AC(0x9000000000000000, UL) 116 #define SATP_ASID_BITS 16 117 #define SATP_ASID_SHIFT 44 118 #define SATP_ASID_MASK _AC(0xFFFF, UL) 119 120 #define SBI_EXT_EXPERIMENTAL_START 0x08000000 121 #define SBI_EXT_EXPERIMENTAL_END 0x08FFFFFF 122 123 #define KVM_RISCV_SELFTESTS_SBI_EXT SBI_EXT_EXPERIMENTAL_END 124 125 struct sbiret { 126 long error; 127 long value; 128 }; 129 130 struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, 131 unsigned long arg1, unsigned long arg2, 132 unsigned long arg3, unsigned long arg4, 133 unsigned long arg5); 134 135 #endif /* SELFTEST_KVM_PROCESSOR_H */ 136