Ejemplo n.º 1
0
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);
			}
		}
	}
}
Ejemplo n.º 2
0
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);
	}
	
}
Ejemplo n.º 3
0
/** 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);
		}
	}
}
Ejemplo n.º 4
0
/**
 * 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;
}