name : arm_hypercalls.h /* SPDX-License-Identifier: GPL-2.0 */ /* Copyright (C) 2019 Arm Ltd. */ #ifndef __KVM_ARM_HYPERCALLS_H #define __KVM_ARM_HYPERCALLS_H #include <asm/kvm_emulate.h> int kvm_smccc_call_handler(struct kvm_vcpu *vcpu); static inline u32 smccc_get_function(struct kvm_vcpu *vcpu) { return vcpu_get_reg(vcpu, 0); } static inline unsigned long smccc_get_arg1(struct kvm_vcpu *vcpu) { return vcpu_get_reg(vcpu, 1); } static inline unsigned long smccc_get_arg2(struct kvm_vcpu *vcpu) { return vcpu_get_reg(vcpu, 2); } static inline unsigned long smccc_get_arg3(struct kvm_vcpu *vcpu) { return vcpu_get_reg(vcpu, 3); } static inline void smccc_set_retval(struct kvm_vcpu *vcpu, unsigned long a0, unsigned long a1, unsigned long a2, unsigned long a3) { vcpu_set_reg(vcpu, 0, a0); vcpu_set_reg(vcpu, 1, a1); vcpu_set_reg(vcpu, 2, a2); vcpu_set_reg(vcpu, 3, a3); } struct kvm_one_reg; void kvm_arm_init_hypercalls(struct kvm *kvm); void kvm_arm_teardown_hypercalls(struct kvm *kvm); int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu); int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices); int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg); int kvm_vm_smccc_has_attr(struct kvm *kvm, struct kvm_device_attr *attr); int kvm_vm_smccc_set_attr(struct kvm *kvm, struct kvm_device_attr *attr); #endif