unsigned long *word = &hptep->dw0.dword0;
unsigned long *word = &hptep->v;
static inline void native_lock_hpte(HPTE *hptep){	unsigned long *word = &hptep->dw0.dword0;	while (1) {		if (!test_and_set_bit(HPTE_LOCK_BIT, word))			break;		while(test_bit(HPTE_LOCK_BIT, word))			cpu_relax();	}}