kvm_lapic_readable_reg_mask
EXPORT_SYMBOL_FOR_KVM_INTERNAL(kvm_lapic_readable_reg_mask);
!(kvm_lapic_readable_reg_mask(apic) & APIC_REG_MASK(offset)))
u64 kvm_lapic_readable_reg_mask(struct kvm_lapic *apic);
msr_bitmap[read_idx] = ~kvm_lapic_readable_reg_mask(vcpu->arch.apic);