include/linux/kvm_para.h

   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
  17 #define KVM_HC_VAPIC_POLL_IRQ           1
  18 #define KVM_HC_MMU_OP                   2
  19
  20 /*
  21  * hypercalls use architecture specific
  22  */
  23 #include <asm/kvm_para.h>
  24
  25 #ifdef __KERNEL__
  26 #ifdef CONFIG_KVM_GUEST
  27 void __init kvm_guest_init(void);
  28 #else
  29 #define kvm_guest_init() do { } while (0)
  30 #endif
  31
  32 static inline int kvm_para_has_feature(unsigned int feature)
  33 {
  34         if (kvm_arch_para_features() & (1UL << feature))
  35                 return 1;
  36         return 0;
  37 }
  38 #endif /* __KERNEL__ */
  39 #endif /* __LINUX_KVM_PARA_H */
  40