kern_return_t
hibernate_setup(IOHibernateImageHeader * header,
uint32_t free_page_ratio,
uint32_t free_page_time,
boolean_t vmflush,
hibernate_page_list_t ** page_list_ret,
hibernate_page_list_t ** page_list_wired_ret,
boolean_t * encryptedswap)
{
hibernate_page_list_t * page_list = NULL;
hibernate_page_list_t * page_list_wired = NULL;
uint32_t gobble_count;
*page_list_ret = NULL;
*page_list_wired_ret = NULL;
if (vmflush)
hibernate_flush_memory();
page_list = hibernate_page_list_allocate();
if (!page_list)
return (KERN_RESOURCE_SHORTAGE);
page_list_wired = hibernate_page_list_allocate();
if (!page_list_wired)
{
kfree(page_list, page_list->list_size);
return (KERN_RESOURCE_SHORTAGE);
}
*encryptedswap = dp_encryption;
// pages we could force out to reduce hibernate image size
gobble_count = (uint32_t)((((uint64_t) page_list->page_count) * ((uint64_t) free_page_ratio)) / 100);
// no failures hereafter
hibernate_processor_setup(header);
HIBLOG("hibernate_alloc_pages flags %08x, gobbling %d pages\n",
header->processorFlags, gobble_count);
if (gobble_count)
hibernate_gobble_pages(gobble_count, free_page_time);
*page_list_ret = page_list;
*page_list_wired_ret = page_list_wired;
return (KERN_SUCCESS);
}
kern_return_t
hibernate_alloc_page_lists(
hibernate_page_list_t ** page_list_ret,
hibernate_page_list_t ** page_list_wired_ret,
hibernate_page_list_t ** page_list_pal_ret)
{
kern_return_t retval = KERN_SUCCESS;
hibernate_page_list_t * page_list = NULL;
hibernate_page_list_t * page_list_wired = NULL;
hibernate_page_list_t * page_list_pal = NULL;
page_list = hibernate_page_list_allocate(TRUE);
if (!page_list) {
retval = KERN_RESOURCE_SHORTAGE;
goto done;
}
page_list_wired = hibernate_page_list_allocate(FALSE);
if (!page_list_wired)
{
kfree(page_list, page_list->list_size);
retval = KERN_RESOURCE_SHORTAGE;
goto done;
}
page_list_pal = hibernate_page_list_allocate(FALSE);
if (!page_list_pal)
{
kfree(page_list, page_list->list_size);
kfree(page_list_wired, page_list_wired->list_size);
retval = KERN_RESOURCE_SHORTAGE;
goto done;
}
*page_list_ret = page_list;
*page_list_wired_ret = page_list_wired;
*page_list_pal_ret = page_list_pal;
done:
return (retval);
}