alistair23-linux/include/linux/kvm_para.h
Avi Kivity b93463aa59 KVM: Accelerated apic support
This adds a mechanism for exposing the virtual apic tpr to the guest, and a
protocol for letting the guest update the tpr without causing a vmexit if
conditions allow (e.g. there is no interrupt pending with a higher priority
than the new tpr).

Signed-off-by: Avi Kivity <avi@qumranet.com>
2008-01-30 18:01:20 +02:00

32 lines
651 B
C

#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_HC_VAPIC_POLL_IRQ 1
#ifdef __KERNEL__
/*
* hypercalls use architecture specific
*/
#include <asm/kvm_para.h>
static inline 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 */