| /* |
| * 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__ */ |