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dfefa04a90
kvm_psci_version() consumes a pointer to struct kvm in addition to a vcpu pointer. Drop the kvm pointer as it is unused. While the comment suggests the explicit kvm pointer was useful for calling from hyp, there exist no such callsite in hyp. Signed-off-by: Oliver Upton <oupton@google.com> Signed-off-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20220208012705.640444-1-oupton@google.com
48 lines
1.3 KiB
C
48 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) 2012,2013 - ARM Ltd
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* Author: Marc Zyngier <marc.zyngier@arm.com>
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*/
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#ifndef __KVM_ARM_PSCI_H__
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#define __KVM_ARM_PSCI_H__
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#include <linux/kvm_host.h>
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#include <uapi/linux/psci.h>
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#define KVM_ARM_PSCI_0_1 PSCI_VERSION(0, 1)
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#define KVM_ARM_PSCI_0_2 PSCI_VERSION(0, 2)
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#define KVM_ARM_PSCI_1_0 PSCI_VERSION(1, 0)
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#define KVM_ARM_PSCI_LATEST KVM_ARM_PSCI_1_0
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static inline int kvm_psci_version(struct kvm_vcpu *vcpu)
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{
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/*
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* Our PSCI implementation stays the same across versions from
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* v0.2 onward, only adding the few mandatory functions (such
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* as FEATURES with 1.0) that are required by newer
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* revisions. It is thus safe to return the latest, unless
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* userspace has instructed us otherwise.
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*/
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if (test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features)) {
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if (vcpu->kvm->arch.psci_version)
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return vcpu->kvm->arch.psci_version;
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return KVM_ARM_PSCI_LATEST;
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}
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return KVM_ARM_PSCI_0_1;
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}
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int kvm_psci_call(struct kvm_vcpu *vcpu);
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struct kvm_one_reg;
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int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu);
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int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);
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int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
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int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
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#endif /* __KVM_ARM_PSCI_H__ */
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