diff --git a/exec.c b/exec.c index bf34dc9e43..24423d5cb6 100644 --- a/exec.c +++ b/exec.c @@ -459,14 +459,23 @@ static uint16_t *phys_page_find_alloc(target_phys_addr_t index, int alloc) static MemoryRegionSection phys_page_find(target_phys_addr_t index) { - uint16_t *p = phys_page_find_alloc(index, 0); - uint16_t s_index = phys_section_unassigned; + PhysPageEntry lp = phys_map; + PhysPageEntry *p; + int i; MemoryRegionSection section; target_phys_addr_t delta; + uint16_t s_index = phys_section_unassigned; - if (p) { - s_index = *p; + for (i = P_L2_LEVELS - 1; i >= 0; i--) { + if (lp.u.node == PHYS_MAP_NODE_NIL) { + goto not_found; + } + p = phys_map_nodes[lp.u.node]; + lp = p[(index >> (i * L2_BITS)) & (L2_SIZE - 1)]; } + + s_index = lp.u.leaf; +not_found: section = phys_sections[s_index]; index <<= TARGET_PAGE_BITS; assert(section.offset_within_address_space <= index