PV_WIRED
#define PV_WIRE(pv) ((pv)->pv_va |= PV_WIRED)
#define PV_UNWIRE(pv) ((pv)->pv_va &= ~PV_WIRED)
#define PV_ISWIRED(pv) ((pv)->pv_va & PV_WIRED)
#define PV_VA(pv) ((pv)->pv_va & ~PV_WIRED)
if (pv->pv_vflags & PV_WIRED)
if ((pv->pv_vflags & PV_WIRED) == 0)
pv->pv_vflags &= ~PV_WIRED;
if (pv->pv_vflags & PV_WIRED)
if (vflags & (PV_UNMANAGED | PV_WIRED))
if (pv->pv_vflags & PV_WIRED)
pv->pv_vflags |= PV_WIRED;
if (pv->pv_vflags & PV_WIRED)