KVM: document lapic regs field

	u32 divide_count;

	struct kvm_vcpu *vcpu;

	bool irr_pending;

	/**

	 * APIC register page.  The layout matches the register layout seen by

	 * the guest 1:1, because it is accessed by the vmx microcode.

	 * Note: Only one register, the TPR, is used by the microcode.

	 */

	void *regs;

	gpa_t vapic_addr;

	struct page *vapic_page;