| /* SPDX-License-Identifier: GPL-2.0 */ | |
| /* | |
| * RISC-V processor specific defines | |
| * | |
| * Copyright (C) 2021 Western Digital Corporation or its affiliates. | |
| */ | |
| #ifndef SELFTEST_KVM_PROCESSOR_H | |
| #define SELFTEST_KVM_PROCESSOR_H | |
| #include <linux/stringify.h> | |
| #include <asm/csr.h> | |
| #include <asm/vdso/processor.h> | |
| #include "kvm_util.h" | |
| #define INSN_OPCODE_MASK 0x007c | |
| #define INSN_OPCODE_SHIFT 2 | |
| #define INSN_OPCODE_SYSTEM 28 | |
| #define INSN_MASK_FUNCT3 0x7000 | |
| #define INSN_SHIFT_FUNCT3 12 | |
| #define INSN_CSR_MASK 0xfff00000 | |
| #define INSN_CSR_SHIFT 20 | |
| #define GET_RM(insn) (((insn) & INSN_MASK_FUNCT3) >> INSN_SHIFT_FUNCT3) | |
| #define GET_CSR_NUM(insn) (((insn) & INSN_CSR_MASK) >> INSN_CSR_SHIFT) | |
| static inline u64 __kvm_reg_id(u64 type, u64 subtype, u64 idx, u64 size) | |
| { | |
| return KVM_REG_RISCV | type | subtype | idx | size; | |
| } | |
| #if __riscv_xlen == 64 | |
| #define KVM_REG_SIZE_ULONG KVM_REG_SIZE_U64 | |
| #else | |
| #define KVM_REG_SIZE_ULONG KVM_REG_SIZE_U32 | |
| #endif | |
| #define RISCV_CONFIG_REG(name) __kvm_reg_id(KVM_REG_RISCV_CONFIG, 0, \ | |
| KVM_REG_RISCV_CONFIG_REG(name), \ | |
| KVM_REG_SIZE_ULONG) | |
| #define RISCV_CORE_REG(name) __kvm_reg_id(KVM_REG_RISCV_CORE, 0, \ | |
| KVM_REG_RISCV_CORE_REG(name), \ | |
| KVM_REG_SIZE_ULONG) | |
| #define RISCV_GENERAL_CSR_REG(name) __kvm_reg_id(KVM_REG_RISCV_CSR, \ | |
| KVM_REG_RISCV_CSR_GENERAL, \ | |
| KVM_REG_RISCV_CSR_REG(name), \ | |
| KVM_REG_SIZE_ULONG) | |
| #define RISCV_TIMER_REG(name) __kvm_reg_id(KVM_REG_RISCV_TIMER, 0, \ | |
| KVM_REG_RISCV_TIMER_REG(name), \ | |
| KVM_REG_SIZE_U64) | |
| #define RISCV_ISA_EXT_REG(idx) __kvm_reg_id(KVM_REG_RISCV_ISA_EXT, \ | |
| KVM_REG_RISCV_ISA_SINGLE, \ | |
| idx, KVM_REG_SIZE_ULONG) | |
| #define RISCV_SBI_EXT_REG(idx) __kvm_reg_id(KVM_REG_RISCV_SBI_EXT, \ | |
| KVM_REG_RISCV_SBI_SINGLE, \ | |
| idx, KVM_REG_SIZE_ULONG) | |
| bool __vcpu_has_ext(struct kvm_vcpu *vcpu, u64 ext); | |
| static inline bool __vcpu_has_isa_ext(struct kvm_vcpu *vcpu, u64 isa_ext) | |
| { | |
| return __vcpu_has_ext(vcpu, RISCV_ISA_EXT_REG(isa_ext)); | |
| } | |
| static inline bool __vcpu_has_sbi_ext(struct kvm_vcpu *vcpu, u64 sbi_ext) | |
| { | |
| return __vcpu_has_ext(vcpu, RISCV_SBI_EXT_REG(sbi_ext)); | |
| } | |
| struct pt_regs { | |
| unsigned long epc; | |
| unsigned long ra; | |
| unsigned long sp; | |
| unsigned long gp; | |
| unsigned long tp; | |
| unsigned long t0; | |
| unsigned long t1; | |
| unsigned long t2; | |
| unsigned long s0; | |
| unsigned long s1; | |
| unsigned long a0; | |
| unsigned long a1; | |
| unsigned long a2; | |
| unsigned long a3; | |
| unsigned long a4; | |
| unsigned long a5; | |
| unsigned long a6; | |
| unsigned long a7; | |
| unsigned long s2; | |
| unsigned long s3; | |
| unsigned long s4; | |
| unsigned long s5; | |
| unsigned long s6; | |
| unsigned long s7; | |
| unsigned long s8; | |
| unsigned long s9; | |
| unsigned long s10; | |
| unsigned long s11; | |
| unsigned long t3; | |
| unsigned long t4; | |
| unsigned long t5; | |
| unsigned long t6; | |
| /* Supervisor/Machine CSRs */ | |
| unsigned long status; | |
| unsigned long badaddr; | |
| unsigned long cause; | |
| /* a0 value before the syscall */ | |
| unsigned long orig_a0; | |
| }; | |
| #define NR_VECTORS 2 | |
| #define NR_EXCEPTIONS 32 | |
| #define EC_MASK (NR_EXCEPTIONS - 1) | |
| typedef void(*exception_handler_fn)(struct pt_regs *); | |
| void vm_init_vector_tables(struct kvm_vm *vm); | |
| void vcpu_init_vector_tables(struct kvm_vcpu *vcpu); | |
| void vm_install_exception_handler(struct kvm_vm *vm, int vector, exception_handler_fn handler); | |
| void vm_install_interrupt_handler(struct kvm_vm *vm, exception_handler_fn handler); | |
| /* L3 index Bit[47:39] */ | |
| #define PGTBL_L3_INDEX_MASK 0x0000FF8000000000ULL | |
| #define PGTBL_L3_INDEX_SHIFT 39 | |
| #define PGTBL_L3_BLOCK_SHIFT 39 | |
| #define PGTBL_L3_BLOCK_SIZE 0x0000008000000000ULL | |
| #define PGTBL_L3_MAP_MASK (~(PGTBL_L3_BLOCK_SIZE - 1)) | |
| /* L2 index Bit[38:30] */ | |
| #define PGTBL_L2_INDEX_MASK 0x0000007FC0000000ULL | |
| #define PGTBL_L2_INDEX_SHIFT 30 | |
| #define PGTBL_L2_BLOCK_SHIFT 30 | |
| #define PGTBL_L2_BLOCK_SIZE 0x0000000040000000ULL | |
| #define PGTBL_L2_MAP_MASK (~(PGTBL_L2_BLOCK_SIZE - 1)) | |
| /* L1 index Bit[29:21] */ | |
| #define PGTBL_L1_INDEX_MASK 0x000000003FE00000ULL | |
| #define PGTBL_L1_INDEX_SHIFT 21 | |
| #define PGTBL_L1_BLOCK_SHIFT 21 | |
| #define PGTBL_L1_BLOCK_SIZE 0x0000000000200000ULL | |
| #define PGTBL_L1_MAP_MASK (~(PGTBL_L1_BLOCK_SIZE - 1)) | |
| /* L0 index Bit[20:12] */ | |
| #define PGTBL_L0_INDEX_MASK 0x00000000001FF000ULL | |
| #define PGTBL_L0_INDEX_SHIFT 12 | |
| #define PGTBL_L0_BLOCK_SHIFT 12 | |
| #define PGTBL_L0_BLOCK_SIZE 0x0000000000001000ULL | |
| #define PGTBL_L0_MAP_MASK (~(PGTBL_L0_BLOCK_SIZE - 1)) | |
| #define PGTBL_PTE_ADDR_MASK 0x003FFFFFFFFFFC00ULL | |
| #define PGTBL_PTE_ADDR_SHIFT 10 | |
| #define PGTBL_PTE_RSW_MASK 0x0000000000000300ULL | |
| #define PGTBL_PTE_RSW_SHIFT 8 | |
| #define PGTBL_PTE_DIRTY_MASK 0x0000000000000080ULL | |
| #define PGTBL_PTE_DIRTY_SHIFT 7 | |
| #define PGTBL_PTE_ACCESSED_MASK 0x0000000000000040ULL | |
| #define PGTBL_PTE_ACCESSED_SHIFT 6 | |
| #define PGTBL_PTE_GLOBAL_MASK 0x0000000000000020ULL | |
| #define PGTBL_PTE_GLOBAL_SHIFT 5 | |
| #define PGTBL_PTE_USER_MASK 0x0000000000000010ULL | |
| #define PGTBL_PTE_USER_SHIFT 4 | |
| #define PGTBL_PTE_EXECUTE_MASK 0x0000000000000008ULL | |
| #define PGTBL_PTE_EXECUTE_SHIFT 3 | |
| #define PGTBL_PTE_WRITE_MASK 0x0000000000000004ULL | |
| #define PGTBL_PTE_WRITE_SHIFT 2 | |
| #define PGTBL_PTE_READ_MASK 0x0000000000000002ULL | |
| #define PGTBL_PTE_READ_SHIFT 1 | |
| #define PGTBL_PTE_PERM_MASK (PGTBL_PTE_ACCESSED_MASK | \ | |
| PGTBL_PTE_DIRTY_MASK | \ | |
| PGTBL_PTE_EXECUTE_MASK | \ | |
| PGTBL_PTE_WRITE_MASK | \ | |
| PGTBL_PTE_READ_MASK) | |
| #define PGTBL_PTE_VALID_MASK 0x0000000000000001ULL | |
| #define PGTBL_PTE_VALID_SHIFT 0 | |
| #define PGTBL_PAGE_SIZE PGTBL_L0_BLOCK_SIZE | |
| #define PGTBL_PAGE_SIZE_SHIFT PGTBL_L0_BLOCK_SHIFT | |
| static inline void local_irq_enable(void) | |
| { | |
| csr_set(CSR_SSTATUS, SR_SIE); | |
| } | |
| static inline void local_irq_disable(void) | |
| { | |
| csr_clear(CSR_SSTATUS, SR_SIE); | |
| } | |
| unsigned long riscv64_get_satp_mode(void); | |
| #endif /* SELFTEST_KVM_PROCESSOR_H */ |