xref: /OK3568_Linux_fs/kernel/arch/powerpc/include/asm/kvm_guest.h (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Copyright (C) 2020 IBM Corporation
4*4882a593Smuzhiyun  */
5*4882a593Smuzhiyun 
6*4882a593Smuzhiyun #ifndef _ASM_POWERPC_KVM_GUEST_H_
7*4882a593Smuzhiyun #define _ASM_POWERPC_KVM_GUEST_H_
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #if defined(CONFIG_PPC_PSERIES) || defined(CONFIG_KVM_GUEST)
10*4882a593Smuzhiyun #include <linux/jump_label.h>
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun DECLARE_STATIC_KEY_FALSE(kvm_guest);
13*4882a593Smuzhiyun 
is_kvm_guest(void)14*4882a593Smuzhiyun static inline bool is_kvm_guest(void)
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun 	return static_branch_unlikely(&kvm_guest);
17*4882a593Smuzhiyun }
18*4882a593Smuzhiyun 
19*4882a593Smuzhiyun int check_kvm_guest(void);
20*4882a593Smuzhiyun #else
is_kvm_guest(void)21*4882a593Smuzhiyun static inline bool is_kvm_guest(void) { return false; }
check_kvm_guest(void)22*4882a593Smuzhiyun static inline int check_kvm_guest(void) { return 0; }
23*4882a593Smuzhiyun #endif
24*4882a593Smuzhiyun 
25*4882a593Smuzhiyun #endif /* _ASM_POWERPC_KVM_GUEST_H_ */
26