diff options
Diffstat (limited to 'tools/testing/selftests/kvm/include/riscv/processor.h')
| -rw-r--r-- | tools/testing/selftests/kvm/include/riscv/processor.h | 72 |
1 files changed, 30 insertions, 42 deletions
diff --git a/tools/testing/selftests/kvm/include/riscv/processor.h b/tools/testing/selftests/kvm/include/riscv/processor.h index ce473fe251dd..162f303d9daa 100644 --- a/tools/testing/selftests/kvm/include/riscv/processor.h +++ b/tools/testing/selftests/kvm/include/riscv/processor.h @@ -11,6 +11,19 @@ #include <asm/csr.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 uint64_t __kvm_reg_id(uint64_t type, uint64_t subtype, uint64_t idx, uint64_t size) { @@ -50,7 +63,18 @@ static inline uint64_t __kvm_reg_id(uint64_t type, uint64_t subtype, bool __vcpu_has_ext(struct kvm_vcpu *vcpu, uint64_t ext); -struct ex_regs { +static inline bool __vcpu_has_isa_ext(struct kvm_vcpu *vcpu, uint64_t isa_ext) +{ + return __vcpu_has_ext(vcpu, RISCV_ISA_EXT_REG(isa_ext)); +} + +static inline bool __vcpu_has_sbi_ext(struct kvm_vcpu *vcpu, uint64_t 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; @@ -82,16 +106,19 @@ struct ex_regs { unsigned long t4; unsigned long t5; unsigned long t6; - unsigned long epc; + /* 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 ex_regs *); +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); @@ -154,45 +181,6 @@ void vm_install_interrupt_handler(struct kvm_vm *vm, exception_handler_fn handle #define PGTBL_PAGE_SIZE PGTBL_L0_BLOCK_SIZE #define PGTBL_PAGE_SIZE_SHIFT PGTBL_L0_BLOCK_SHIFT -/* SBI return error codes */ -#define SBI_SUCCESS 0 -#define SBI_ERR_FAILURE -1 -#define SBI_ERR_NOT_SUPPORTED -2 -#define SBI_ERR_INVALID_PARAM -3 -#define SBI_ERR_DENIED -4 -#define SBI_ERR_INVALID_ADDRESS -5 -#define SBI_ERR_ALREADY_AVAILABLE -6 -#define SBI_ERR_ALREADY_STARTED -7 -#define SBI_ERR_ALREADY_STOPPED -8 - -#define SBI_EXT_EXPERIMENTAL_START 0x08000000 -#define SBI_EXT_EXPERIMENTAL_END 0x08FFFFFF - -#define KVM_RISCV_SELFTESTS_SBI_EXT SBI_EXT_EXPERIMENTAL_END -#define KVM_RISCV_SELFTESTS_SBI_UCALL 0 -#define KVM_RISCV_SELFTESTS_SBI_UNEXP 1 - -enum sbi_ext_id { - SBI_EXT_BASE = 0x10, - SBI_EXT_STA = 0x535441, -}; - -enum sbi_ext_base_fid { - SBI_EXT_BASE_PROBE_EXT = 3, -}; - -struct sbiret { - long error; - long value; -}; - -struct sbiret sbi_ecall(int ext, int fid, unsigned long arg0, - unsigned long arg1, unsigned long arg2, - unsigned long arg3, unsigned long arg4, - unsigned long arg5); - -bool guest_sbi_probe_extension(int extid, long *out_val); - static inline void local_irq_enable(void) { csr_set(CSR_SSTATUS, SR_SIE); |