64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
|
|
* Copyright (C) 2012,2013 - ARM Ltd
|
|
* Author: Marc Zyngier <marc.zyngier@arm.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#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_hvc_call_handler(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__ */
|