1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /** 3 * Copyright (c) 2021 Western Digital Corporation or its affiliates. 4 * 5 * Authors: 6 * Atish Patra <atish.patra@wdc.com> 7 */ 8 9 #ifndef __RISCV_KVM_VCPU_SBI_H__ 10 #define __RISCV_KVM_VCPU_SBI_H__ 11 12 #define KVM_SBI_IMPID 3 13 14 #define KVM_SBI_VERSION_MAJOR 1 15 #define KVM_SBI_VERSION_MINOR 0 16 17 struct kvm_vcpu_sbi_extension { 18 unsigned long extid_start; 19 unsigned long extid_end; 20 /** 21 * SBI extension handler. It can be defined for a given extension or group of 22 * extension. But it should always return linux error codes rather than SBI 23 * specific error codes. 24 */ 25 int (*handler)(struct kvm_vcpu *vcpu, struct kvm_run *run, 26 unsigned long *out_val, struct kvm_cpu_trap *utrap, 27 bool *exit); 28 }; 29 30 void kvm_riscv_vcpu_sbi_forward(struct kvm_vcpu *vcpu, struct kvm_run *run); 31 void kvm_riscv_vcpu_sbi_system_reset(struct kvm_vcpu *vcpu, 32 struct kvm_run *run, 33 u32 type, u64 flags); 34 const struct kvm_vcpu_sbi_extension *kvm_vcpu_sbi_find_ext(unsigned long extid); 35 36 #ifdef CONFIG_RISCV_SBI_V01 37 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_v01; 38 #endif 39 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_base; 40 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_time; 41 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_ipi; 42 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_rfence; 43 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_srst; 44 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_hsm; 45 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_experimental; 46 extern const struct kvm_vcpu_sbi_extension vcpu_sbi_ext_vendor; 47 48 #endif /* __RISCV_KVM_VCPU_SBI_H__ */ 49