#include <kern/kalloc.h>
#include <kern/machine.h>
#include <kern/misc_protos.h>
#include <kern/thread.h>
#include <kern/processor.h>
#include <mach/machine.h>
#include <mach/processor_info.h>
#include <mach/mach_types.h>
#include <default_pager/default_pager_internal.h>
#include <IOKit/IOPlatformExpert.h>
#include <IOKit/IOHibernatePrivate.h>
#include <vm/vm_page.h>
#include <vm/vm_pageout.h>
#include <vm/vm_purgeable_internal.h>
kern_return_t
hibernate_setup(IOHibernateImageHeader * header,
uint32_t free_page_ratio,
uint32_t free_page_time,
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;
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;
gobble_count = (uint32_t)((((uint64_t) page_list->page_count) * ((uint64_t) free_page_ratio)) / 100);
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_teardown(hibernate_page_list_t * page_list,
hibernate_page_list_t * page_list_wired)
{
hibernate_free_gobble_pages();
if (page_list)
kfree(page_list, page_list->list_size);
if (page_list_wired)
kfree(page_list_wired, page_list_wired->list_size);
return (KERN_SUCCESS);
}