kvm/include/linux/kvm_para.h

   1 #ifndef KVM_UNIFDEF_H
   2 #define KVM_UNIFDEF_H
   3
   4 #ifdef __i386__
   5 #ifndef CONFIG_X86_32
   6 #define CONFIG_X86_32 1
   7 #endif
   8 #endif
   9
  10 #ifdef __x86_64__
  11 #ifndef CONFIG_X86_64
  12 #define CONFIG_X86_64 1
  13 #endif
  14 #endif
  15
  16 #if defined(__i386__) || defined (__x86_64__)
  17 #ifndef CONFIG_X86
  18 #define CONFIG_X86 1
  19 #endif
  20 #endif
  21
  22 #ifdef __ia64__
  23 #ifndef CONFIG_IA64
  24 #define CONFIG_IA64 1
  25 #endif
  26 #endif
  27
  28 #ifdef __PPC__
  29 #ifndef CONFIG_PPC
  30 #define CONFIG_PPC 1
  31 #endif
  32 #endif
  33
  34 #ifdef __s390__
  35 #ifndef CONFIG_S390
  36 #define CONFIG_S390 1
  37 #endif
  38 #endif
  39
  40 #endif
  41 #ifndef __LINUX_KVM_PARA_H
  42 #define __LINUX_KVM_PARA_H
  43
  44 /*
  45  * This header file provides a method for making a hypercall to the host
  46  * Architectures should define:
  47  * - kvm_hypercall0, kvm_hypercall1...
  48  * - kvm_arch_para_features
  49  * - kvm_para_available
  50  */
  51
  52 /* Return values for hypercalls */
  53 #define KVM_ENOSYS              1000
  54 #define KVM_EFAULT              EFAULT
  55 #define KVM_E2BIG               E2BIG
  56
  57 #define KVM_HC_VAPIC_POLL_IRQ           1
  58 #define KVM_HC_MMU_OP                   2
  59
  60 /*
  61  * hypercalls use architecture specific
  62  */
  63 #include <asm/kvm_para.h>
  64
  65 #ifdef __KERNEL__
  66 #ifdef CONFIG_KVM_GUEST
  67 void __init kvm_guest_init(void);
  68 #else
  69 #define kvm_guest_init() do { } while (0)
  70 #endif
  71
  72 static inline int kvm_para_has_feature(unsigned int feature)
  73 {
  74         if (kvm_arch_para_features() & (1UL << feature))
  75                 return 1;
  76         return 0;
  77 }
  78 #endif /* __KERNEL__ */
  79 #endif /* __LINUX_KVM_PARA_H */
  80