1 /* SPDX-License-Identifier: GPL-2.0-only */ <<
2 /* 1 /*
3 * Copyright (C) 2012,2013 - ARM Ltd 2 * Copyright (C) 2012,2013 - ARM Ltd
4 * Author: Marc Zyngier <marc.zyngier@arm.com> 3 * Author: Marc Zyngier <marc.zyngier@arm.com>
>> 4 *
>> 5 * This program is free software; you can redistribute it and/or modify
>> 6 * it under the terms of the GNU General Public License version 2 as
>> 7 * published by the Free Software Foundation.
>> 8 *
>> 9 * This program is distributed in the hope that it will be useful,
>> 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
>> 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
>> 12 * GNU General Public License for more details.
>> 13 *
>> 14 * You should have received a copy of the GNU General Public License
>> 15 * along with this program. If not, see <http://www.gnu.org/licenses/>.
5 */ 16 */
6 17
7 #ifndef __KVM_ARM_PSCI_H__ 18 #ifndef __KVM_ARM_PSCI_H__
8 #define __KVM_ARM_PSCI_H__ 19 #define __KVM_ARM_PSCI_H__
9 20
10 #include <linux/kvm_host.h> 21 #include <linux/kvm_host.h>
11 #include <uapi/linux/psci.h> 22 #include <uapi/linux/psci.h>
12 23
13 #define KVM_ARM_PSCI_0_1 PSCI_VERSION(0 24 #define KVM_ARM_PSCI_0_1 PSCI_VERSION(0, 1)
14 #define KVM_ARM_PSCI_0_2 PSCI_VERSION(0 25 #define KVM_ARM_PSCI_0_2 PSCI_VERSION(0, 2)
15 #define KVM_ARM_PSCI_1_0 PSCI_VERSION(1 26 #define KVM_ARM_PSCI_1_0 PSCI_VERSION(1, 0)
16 #define KVM_ARM_PSCI_1_1 PSCI_VERSION(1 <<
17 27
18 #define KVM_ARM_PSCI_LATEST KVM_ARM_PSCI_1 !! 28 #define KVM_ARM_PSCI_LATEST KVM_ARM_PSCI_1_0
19 29
20 static inline int kvm_psci_version(struct kvm_ !! 30 /*
>> 31 * We need the KVM pointer independently from the vcpu as we can call
>> 32 * this from HYP, and need to apply kern_hyp_va on it...
>> 33 */
>> 34 static inline int kvm_psci_version(struct kvm_vcpu *vcpu, struct kvm *kvm)
21 { 35 {
22 /* 36 /*
23 * Our PSCI implementation stays the s 37 * Our PSCI implementation stays the same across versions from
24 * v0.2 onward, only adding the few ma 38 * v0.2 onward, only adding the few mandatory functions (such
25 * as FEATURES with 1.0) that are requ 39 * as FEATURES with 1.0) that are required by newer
26 * revisions. It is thus safe to retur 40 * revisions. It is thus safe to return the latest, unless
27 * userspace has instructed us otherwi 41 * userspace has instructed us otherwise.
28 */ 42 */
29 if (vcpu_has_feature(vcpu, KVM_ARM_VCP !! 43 if (test_bit(KVM_ARM_VCPU_PSCI_0_2, vcpu->arch.features)) {
30 if (vcpu->kvm->arch.psci_versi 44 if (vcpu->kvm->arch.psci_version)
31 return vcpu->kvm->arch 45 return vcpu->kvm->arch.psci_version;
32 46
33 return KVM_ARM_PSCI_LATEST; 47 return KVM_ARM_PSCI_LATEST;
34 } 48 }
35 49
36 return KVM_ARM_PSCI_0_1; 50 return KVM_ARM_PSCI_0_1;
37 } 51 }
38 52
39 53
40 int kvm_psci_call(struct kvm_vcpu *vcpu); !! 54 int kvm_hvc_call_handler(struct kvm_vcpu *vcpu);
>> 55
>> 56 struct kvm_one_reg;
>> 57
>> 58 int kvm_arm_get_fw_num_regs(struct kvm_vcpu *vcpu);
>> 59 int kvm_arm_copy_fw_reg_indices(struct kvm_vcpu *vcpu, u64 __user *uindices);
>> 60 int kvm_arm_get_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
>> 61 int kvm_arm_set_fw_reg(struct kvm_vcpu *vcpu, const struct kvm_one_reg *reg);
41 62
42 #endif /* __KVM_ARM_PSCI_H__ */ 63 #endif /* __KVM_ARM_PSCI_H__ */
43 64
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