Lines Matching defs:mid_mfn
529 unsigned long *top_mfn_p, *mid_mfn;
550 mid_mfn = READ_ONCE(p2m_top_mfn_p[topidx]);
552 BUG_ON(virt_to_mfn(mid_mfn) != *top_mfn_p);
554 if (mid_mfn == p2m_mid_missing_mfn) {
560 mid_mfn = alloc_p2m_page();
561 if (!mid_mfn)
564 p2m_mid_mfn_init(mid_mfn, p2m_missing);
567 mid_mfn_mfn = virt_to_mfn(mid_mfn);
570 free_p2m_page(mid_mfn);
571 mid_mfn = mfn_to_virt(old_mfn);
573 p2m_top_mfn_p[topidx] = mid_mfn;
577 mid_mfn = NULL;
604 if (mid_mfn)
605 mid_mfn[p2m_mid_index(pfn)] = virt_to_mfn(p2m);