kvm_gpc_activate
kvm_gpc_activate(&vcpu->arch.pv_time, system_time & ~1ULL,
if (kvm_gpc_activate(gpc2, gpc1->gpa + user_len1,
r = kvm_gpc_activate(&kvm->arch.xen.shinfo_cache,
r = kvm_gpc_activate(&vcpu->arch.xen.vcpu_info_cache,
r = kvm_gpc_activate(&vcpu->arch.xen.vcpu_time_info_cache,
r = kvm_gpc_activate(&vcpu->arch.xen.runstate_cache,
r = kvm_gpc_activate(&vcpu->arch.xen.runstate2_cache,
int kvm_gpc_activate(struct gfn_to_pfn_cache *gpc, gpa_t gpa, unsigned long len);