arch/powerpc/include/asm/kvm_para.h

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