Merge tag 'for-5.5-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
[sfrench/cifs-2.6.git] / include / kvm / arm_hypercalls.h
1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* Copyright (C) 2019 Arm Ltd. */
3
4 #ifndef __KVM_ARM_HYPERCALLS_H
5 #define __KVM_ARM_HYPERCALLS_H
6
7 #include <asm/kvm_emulate.h>
8
9 int kvm_hvc_call_handler(struct kvm_vcpu *vcpu);
10
11 static inline u32 smccc_get_function(struct kvm_vcpu *vcpu)
12 {
13         return vcpu_get_reg(vcpu, 0);
14 }
15
16 static inline unsigned long smccc_get_arg1(struct kvm_vcpu *vcpu)
17 {
18         return vcpu_get_reg(vcpu, 1);
19 }
20
21 static inline unsigned long smccc_get_arg2(struct kvm_vcpu *vcpu)
22 {
23         return vcpu_get_reg(vcpu, 2);
24 }
25
26 static inline unsigned long smccc_get_arg3(struct kvm_vcpu *vcpu)
27 {
28         return vcpu_get_reg(vcpu, 3);
29 }
30
31 static inline void smccc_set_retval(struct kvm_vcpu *vcpu,
32                                     unsigned long a0,
33                                     unsigned long a1,
34                                     unsigned long a2,
35                                     unsigned long a3)
36 {
37         vcpu_set_reg(vcpu, 0, a0);
38         vcpu_set_reg(vcpu, 1, a1);
39         vcpu_set_reg(vcpu, 2, a2);
40         vcpu_set_reg(vcpu, 3, a3);
41 }
42
43 #endif