#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 */