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#ifndef __LINUX_KVM_PARA_H
#define __LINUX_KVM_PARA_H
/*
* This header file provides a method for making a hypercall to the host
* Architectures should define:
* - kvm_hypercall0, kvm_hypercall1...
* - kvm_arch_para_features
* - kvm_para_available
*/
/* Return values for hypercalls */
#define KVM_ENOSYS 1000
#define KVM_EFAULT EFAULT
#define KVM_E2BIG E2BIG
#define KVM_EPERM EPERM
#define KVM_HC_VAPIC_POLL_IRQ 1
#define KVM_HC_MMU_OP 2
/*
* hypercalls use architecture specific
*/
#ifdef _KERNEL
#ifdef CONFIG_KVM_GUEST
void __init kvm_guest_init(void);
#else
#define kvm_guest_init() do { } while (0)
#endif
static unsigned int kvm_arch_para_features(void)
{
return cpuid_eax(KVM_CPUID_FEATURES);
}
static int kvm_para_has_feature(unsigned int feature)
{
if (kvm_arch_para_features() & (1UL << feature))
return 1;
return 0;
}
#endif /* _KERNEL */
#endif /* __LINUX_KVM_PARA_H */
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