1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * 4*4882a593Smuzhiyun * Copyright IBM Corp. 2008 5*4882a593Smuzhiyun * 6*4882a593Smuzhiyun * Authors: Hollis Blanchard <hollisb@us.ibm.com> 7*4882a593Smuzhiyun */ 8*4882a593Smuzhiyun #ifndef __POWERPC_KVM_PARA_H__ 9*4882a593Smuzhiyun #define __POWERPC_KVM_PARA_H__ 10*4882a593Smuzhiyun 11*4882a593Smuzhiyun #include <asm/kvm_guest.h> 12*4882a593Smuzhiyun 13*4882a593Smuzhiyun #include <uapi/asm/kvm_para.h> 14*4882a593Smuzhiyun kvm_para_available(void)15*4882a593Smuzhiyunstatic inline int kvm_para_available(void) 16*4882a593Smuzhiyun { 17*4882a593Smuzhiyun return IS_ENABLED(CONFIG_KVM_GUEST) && is_kvm_guest(); 18*4882a593Smuzhiyun } 19*4882a593Smuzhiyun kvm_arch_para_features(void)20*4882a593Smuzhiyunstatic inline unsigned int kvm_arch_para_features(void) 21*4882a593Smuzhiyun { 22*4882a593Smuzhiyun unsigned long r; 23*4882a593Smuzhiyun 24*4882a593Smuzhiyun if (!kvm_para_available()) 25*4882a593Smuzhiyun return 0; 26*4882a593Smuzhiyun 27*4882a593Smuzhiyun if(epapr_hypercall0_1(KVM_HCALL_TOKEN(KVM_HC_FEATURES), &r)) 28*4882a593Smuzhiyun return 0; 29*4882a593Smuzhiyun 30*4882a593Smuzhiyun return r; 31*4882a593Smuzhiyun } 32*4882a593Smuzhiyun kvm_arch_para_hints(void)33*4882a593Smuzhiyunstatic inline unsigned int kvm_arch_para_hints(void) 34*4882a593Smuzhiyun { 35*4882a593Smuzhiyun return 0; 36*4882a593Smuzhiyun } 37*4882a593Smuzhiyun kvm_check_and_clear_guest_paused(void)38*4882a593Smuzhiyunstatic inline bool kvm_check_and_clear_guest_paused(void) 39*4882a593Smuzhiyun { 40*4882a593Smuzhiyun return false; 41*4882a593Smuzhiyun } 42*4882a593Smuzhiyun 43*4882a593Smuzhiyun #endif /* __POWERPC_KVM_PARA_H__ */ 44