diff options
| -rw-r--r-- | exec.c | 24 |
1 files changed, 10 insertions, 14 deletions
@@ -173,17 +173,22 @@ static void phys_map_node_reserve(PhysPageMap *map, unsigned nodes) } } -static uint32_t phys_map_node_alloc(PhysPageMap *map) +static uint32_t phys_map_node_alloc(PhysPageMap *map, bool leaf) { unsigned i; uint32_t ret; + PhysPageEntry e; + PhysPageEntry *p; ret = map->nodes_nb++; + p = map->nodes[ret]; assert(ret != PHYS_MAP_NODE_NIL); assert(ret != map->nodes_nb_alloc); + + e.skip = leaf ? 0 : 1; + e.ptr = leaf ? PHYS_SECTION_UNASSIGNED : PHYS_MAP_NODE_NIL; for (i = 0; i < P_L2_SIZE; ++i) { - map->nodes[ret][i].skip = 1; - map->nodes[ret][i].ptr = PHYS_MAP_NODE_NIL; + memcpy(&p[i], &e, sizeof(e)); } return ret; } @@ -193,21 +198,12 @@ static void phys_page_set_level(PhysPageMap *map, PhysPageEntry *lp, int level) { PhysPageEntry *p; - int i; hwaddr step = (hwaddr)1 << (level * P_L2_BITS); if (lp->skip && lp->ptr == PHYS_MAP_NODE_NIL) { - lp->ptr = phys_map_node_alloc(map); - p = map->nodes[lp->ptr]; - if (level == 0) { - for (i = 0; i < P_L2_SIZE; i++) { - p[i].skip = 0; - p[i].ptr = PHYS_SECTION_UNASSIGNED; - } - } - } else { - p = map->nodes[lp->ptr]; + lp->ptr = phys_map_node_alloc(map, level == 0); } + p = map->nodes[lp->ptr]; lp = &p[(*index >> (level * P_L2_BITS)) & (P_L2_SIZE - 1)]; while (*nb && lp < &p[P_L2_SIZE]) { |