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   1 #ifndef __LINUX_KVM_PARA_H
   2 #define __LINUX_KVM_PARA_H
   3
   4 /*
   5  * This header file provides a method for making a hypercall to the host
   6  * Architectures should define:
   7  * - kvm_hypercall0, kvm_hypercall1...
   8  * - kvm_arch_para_features
   9  * - kvm_para_available
  10  */
  11
  12 /* Return values for hypercalls */
  13 #define KVM_ENOSYS              1000
  14 #define KVM_EFAULT              EFAULT
  15 #define KVM_E2BIG               E2BIG
  16 #define KVM_EPERM               EPERM
  17
  18 #define KVM_HC_VAPIC_POLL_IRQ           1
  19 #define KVM_HC_MMU_OP                   2
  20
  21 /*
  22  * hypercalls use architecture specific
  23  */
  24 #include <asm/kvm_para.h>
  25
  26 #ifdef __KERNEL__
  27 #ifdef CONFIG_KVM_GUEST
  28 void __init kvm_guest_init(void);
  29 #else
  30 #define kvm_guest_init() do { } while (0)
  31 #endif
  32
  33 static inline int kvm_para_has_feature(unsigned int feature)
  34 {
  35         if (kvm_arch_para_features() & (1UL << feature))
  36                 return 1;
  37         return 0;
  38 }
  39 #endif /* __KERNEL__ */
  40 #endif /* __LINUX_KVM_PARA_H */
  41