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arm_psci.h
/* SPDX-License-Identifier: GPL-2.0-only */ /* * Copyright (C) 2012,2013 - ARM Ltd * Author: Marc Zyngier <marc.zyngier@arm.com> */ #ifndef __KVM_ARM_PSCI_H__ #define __KVM_ARM_PSCI_H__ #include <linux/kvm_host.h> #include <uapi/linux/psci.h> #define KVM_ARM_PSCI_0_1 PSCI_VERSION(0, 1) #define KVM_ARM_PSCI_0_2 PSCI_VERSION(0, 2) #define KVM_ARM_PSCI_1_0 PSCI_VERSION(1, 0) #define KVM_ARM_PSCI_LATEST KVM_ARM_PSCI_1_0 /* * We need the KVM pointer independently from the vcpu as we can call * this from HYP, and need to apply kern_hyp_va on it... */ static inline int kvm_psci_version(struct kvm_vcpu *vcpu, struct kvm *kvm) { /* * Our PSCI implementation stays the same across versions from * v0.2 onward, only adding the few mandatory functions (such * as FEATURES with 1.0) that are required by newer * revisions. It is thus safe to return the latest, unless * userspace has instructed us otherwise. */ if (test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features)) { if (vcpu->kvm->arch.psci_version) return vcpu->kvm->arch.psci_version; return KVM_ARM_PSCI_LATEST; } return KVM_ARM_PSCI_0_1; } int kvm_psci_call(struct kvm_vcpu *vcpu); struct kvm_one_reg; 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); #endif /* __KVM_ARM_PSCI_H__ */