static void frame_common_arch_init(bool low)
{
unsigned int i;
for (i = 0; i < bootinfo->memmap_items; i++) {
if (bootinfo->memmap[i].type != MEMMAP_FREE_MEM)
continue;
uintptr_t base = bootinfo->memmap[i].base;
size_t size = bootinfo->memmap[i].size;
uintptr_t abase = ALIGN_UP(base, FRAME_SIZE);
if (size > FRAME_SIZE)
size -= abase - base;
if (!frame_adjust_zone_bounds(low, &abase, &size))
continue;
if (size > MIN_ZONE_SIZE) {
pfn_t pfn = ADDR2PFN(abase);
size_t count = SIZE2FRAMES(size);
if (low) {
zone_create(pfn, count, max(MINCONF, pfn),
ZONE_AVAILABLE | ZONE_LOWMEM);
} else {
pfn_t conf = zone_external_conf_alloc(count);
if (conf != 0)
zone_create(pfn, count, conf,
ZONE_AVAILABLE | ZONE_HIGHMEM);
}
}
}
}
static void frame_common_arch_init(bool low)
{
uintptr_t base;
size_t size;
machine_get_memory_extents(&base, &size);
base = ALIGN_UP(base, FRAME_SIZE);
size = ALIGN_DOWN(size, FRAME_SIZE);
if (!frame_adjust_zone_bounds(low, &base, &size))
return;
if (low) {
zone_create(ADDR2PFN(base), SIZE2FRAMES(size),
BOOT_PAGE_TABLE_START_FRAME +
BOOT_PAGE_TABLE_SIZE_IN_FRAMES,
ZONE_AVAILABLE | ZONE_LOWMEM);
} else {
pfn_t conf = zone_external_conf_alloc(SIZE2FRAMES(size));
if (conf != 0)
zone_create(ADDR2PFN(base), SIZE2FRAMES(size), conf,
ZONE_AVAILABLE | ZONE_HIGHMEM);
}
}
/** Create memory zones according to information stored in memmap.
*
* Walk the memory map and create frame zones according to it.
*/
static void frame_common_arch_init(bool low)
{
unsigned int i;
for (i = 0; i < memmap.cnt; i++) {
uintptr_t base;
size_t size;
/*
* The memmap is created by HelenOS boot loader.
* It already contains no holes.
*/
/* To be safe, make the available zone possibly smaller */
base = ALIGN_UP((uintptr_t) memmap.zones[i].start, FRAME_SIZE);
size = ALIGN_DOWN(memmap.zones[i].size -
(base - ((uintptr_t) memmap.zones[i].start)), FRAME_SIZE);
if (!frame_adjust_zone_bounds(low, &base, &size))
continue;
pfn_t confdata;
pfn_t pfn = ADDR2PFN(base);
size_t count = SIZE2FRAMES(size);
if (low) {
confdata = pfn;
if (confdata == ADDR2PFN(KA2PA(PFN2ADDR(0))))
confdata = ADDR2PFN(KA2PA(PFN2ADDR(2)));
zone_create(pfn, count, confdata,
ZONE_AVAILABLE | ZONE_LOWMEM);
} else {
confdata = zone_external_conf_alloc(count);
if (confdata != 0)
zone_create(pfn, count, confdata,
ZONE_AVAILABLE | ZONE_HIGHMEM);
}
}
}
/**
* Lookup zone by name.
*
*/
zone_type*
zonelist_lookup_zone_by_name(zonelist_type* zonelist, const char* name,
ldns_rr_class klass)
{
zone_type* zone = NULL;
zone_type* result = NULL;
if (zonelist && zonelist->zones && name && klass) {
zone = zone_create((char*) name, klass);
if (!zone) {
ods_log_error("[%s] unable to lookup zone %s: "
"zone_create() failed", zl_str, name);
/* result stays NULL */
} else {
result = zonelist_lookup_zone(zonelist, zone);
zone_cleanup(zone);
}
}
return result;
}