1d94d71cbSThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */
2b8b572e1SStephen Rothwell /*
3b8b572e1SStephen Rothwell  *
4b8b572e1SStephen Rothwell  * Copyright IBM Corp. 2008
5b8b572e1SStephen Rothwell  *
6b8b572e1SStephen Rothwell  * Authors: Hollis Blanchard <hollisb@us.ibm.com>
7b8b572e1SStephen Rothwell  */
8b8b572e1SStephen Rothwell #ifndef __POWERPC_KVM_PARA_H__
9b8b572e1SStephen Rothwell #define __POWERPC_KVM_PARA_H__
10b8b572e1SStephen Rothwell 
1192cc6bf0SSrikar Dronamraju #include <asm/kvm_guest.h>
12107c5500SNicholas Piggin 
13c3617f72SDavid Howells #include <uapi/asm/kvm_para.h>
14b8b572e1SStephen Rothwell 
kvm_para_available(void)152a342ed5SAlexander Graf static inline int kvm_para_available(void)
162a342ed5SAlexander Graf {
17*a21d1becSSrikar Dronamraju 	return IS_ENABLED(CONFIG_KVM_GUEST) && is_kvm_guest();
182a342ed5SAlexander Graf }
192a342ed5SAlexander Graf 
kvm_arch_para_features(void)20b8b572e1SStephen Rothwell static inline unsigned int kvm_arch_para_features(void)
21b8b572e1SStephen Rothwell {
222a342ed5SAlexander Graf 	unsigned long r;
232a342ed5SAlexander Graf 
242a342ed5SAlexander Graf 	if (!kvm_para_available())
25b8b572e1SStephen Rothwell 		return 0;
262a342ed5SAlexander Graf 
27b1f0d94cSBharat Bhushan 	if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r))
282a342ed5SAlexander Graf 		return 0;
292a342ed5SAlexander Graf 
302a342ed5SAlexander Graf 	return r;
31b8b572e1SStephen Rothwell }
32b8b572e1SStephen Rothwell 
kvm_arch_para_hints(void)33a4429e53SWanpeng Li static inline unsigned int kvm_arch_para_hints(void)
34a4429e53SWanpeng Li {
35a4429e53SWanpeng Li 	return 0;
36a4429e53SWanpeng Li }
37a4429e53SWanpeng Li 
kvm_check_and_clear_guest_paused(void)383b5d56b9SEric B Munson static inline bool kvm_check_and_clear_guest_paused(void)
393b5d56b9SEric B Munson {
403b5d56b9SEric B Munson 	return false;
413b5d56b9SEric B Munson }
423b5d56b9SEric B Munson 
43b8b572e1SStephen Rothwell #endif /* __POWERPC_KVM_PARA_H__ */
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