int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data, unsigned long len)
{
	u64 addr = data & ~KVM_MSR_ENABLED;
	struct gfn_to_hva_cache *ghc = &vcpu->arch.pv_eoi.data;
	unsigned long new_len;

	if (!IS_ALIGNED(addr, 4))
		return 1;

	vcpu->arch.pv_eoi.msr_val = data;
	if (!pv_eoi_enabled(vcpu))
		return 0;

	if (addr == ghc->gpa && len <= ghc->len)
		new_len = ghc->len;
	else
		new_len = len;

	return kvm_gfn_to_hva_cache_init(vcpu->kvm, ghc, addr, new_len);
}
int kvm_lapic_enable_pv_eoi(struct kvm_vcpu *vcpu, u64 data, unsigned long len)
{
	u64 addr = data & ~KVM_MSR_ENABLED;
	struct gfn_to_hva_cache *ghc = &vcpu->arch.pv_eoi.data;
	unsigned long new_len;

	if (!IS_ALIGNED(addr, 4))
		return 1;

	vcpu->arch.pv_eoi.msr_val = data;
	if (!pv_eoi_enabled(vcpu))
		return 0;

	if (addr == ghc->gpa && len <= ghc->len)
		new_len = ghc->len;
	else
		new_len = len;

	return kvm_gfn_to_hva_cache_init(vcpu->kvm, ghc, addr, new_len);
}