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	* pmap and virtual address pair if that mapping permits the given			* pmap and virtual address pair if that mapping permits the given
	* protection.			* protection.
	*/			*/
	vm_page_t			vm_page_t
	moea_extract_and_hold(mmu_t mmu, pmap_t pmap, vm_offset_t va, vm_prot_t prot)			moea_extract_and_hold(mmu_t mmu, pmap_t pmap, vm_offset_t va, vm_prot_t prot)
	{			{
	struct pvo_entry *pvo;			struct pvo_entry *pvo;
	vm_page_t m;			vm_page_t m;
	vm_paddr_t pa;

	m = NULL;			m = NULL;
	pa = 0;
	PMAP_LOCK(pmap);			PMAP_LOCK(pmap);
	retry:
	pvo = moea_pvo_find_va(pmap, va & ~ADDR_POFF, NULL);			pvo = moea_pvo_find_va(pmap, va & ~ADDR_POFF, NULL);
	if (pvo != NULL && (pvo->pvo_pte.pte.pte_hi & PTE_VALID) &&			if (pvo != NULL && (pvo->pvo_pte.pte.pte_hi & PTE_VALID) &&
	((pvo->pvo_pte.pte.pte_lo & PTE_PP) == PTE_RW \|\|			((pvo->pvo_pte.pte.pte_lo & PTE_PP) == PTE_RW \|\|
	(prot & VM_PROT_WRITE) == 0)) {			(prot & VM_PROT_WRITE) == 0)) {
	if (vm_page_pa_tryrelock(pmap, pvo->pvo_pte.pte.pte_lo & PTE_RPGN, &pa))
	goto retry;
	m = PHYS_TO_VM_PAGE(pvo->pvo_pte.pte.pte_lo & PTE_RPGN);			m = PHYS_TO_VM_PAGE(pvo->pvo_pte.pte.pte_lo & PTE_RPGN);
	vm_page_wire(m);			if (!vm_page_wire_mapped(m))
				m = NULL;
	}			}
	PA_UNLOCK_COND(pa);
	PMAP_UNLOCK(pmap);			PMAP_UNLOCK(pmap);
	return (m);			return (m);
	}			}

	void			void
	moea_init(mmu_t mmu)			moea_init(mmu_t mmu)
	{			{

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