blob: 5b58bd2fe088b1fc052e4c13c611abfbbd06773b [file] [log] [blame]
/* SPDX-License-Identifier: GPL-2.0-only */
* Copyright (C) 2012,2013 - ARM Ltd
* Author: Marc Zyngier <>
#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)
* 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_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__ */