/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (c) 2022 Ventana Micro Systems Inc. */ #ifndef __KVM_VCPU_RISCV_INSN_H #define __KVM_VCPU_RISCV_INSN_H struct kvm_vcpu; struct kvm_run; struct kvm_cpu_trap; struct kvm_mmio_decode { unsigned long insn; int insn_len; int len; int shift; int return_handled; }; struct kvm_csr_decode { unsigned long insn; int return_handled; }; /* Return values used by function emulating a particular instruction */ enum kvm_insn_return { KVM_INSN_EXIT_TO_USER_SPACE = 0, KVM_INSN_CONTINUE_NEXT_SEPC, KVM_INSN_CONTINUE_SAME_SEPC, KVM_INSN_ILLEGAL_TRAP, KVM_INSN_VIRTUAL_TRAP }; void kvm_riscv_vcpu_wfi(struct kvm_vcpu *vcpu); int kvm_riscv_vcpu_csr_return(struct kvm_vcpu *vcpu, struct kvm_run *run); int kvm_riscv_vcpu_virtual_insn(struct kvm_vcpu *vcpu, struct kvm_run *run, struct kvm_cpu_trap *trap); int kvm_riscv_vcpu_mmio_load(struct kvm_vcpu *vcpu, struct kvm_run *run, unsigned long fault_addr, unsigned long htinst); int kvm_riscv_vcpu_mmio_store(struct kvm_vcpu *vcpu, struct kvm_run *run, unsigned long fault_addr, unsigned long htinst); int kvm_riscv_vcpu_mmio_return(struct kvm_vcpu *vcpu, struct kvm_run *run); #endif