iokit/Kernel/IOHibernateIO.cpp

43   hibernate_setup() in osfmk is called to allocate page bitmaps for all dram, and
44   page out any pages it wants to (currently zero, but probably some percentage of memory).
67   Each wired page is compressed and written and then each non-wired page. Compression and
83 - hibernate_kernel_entrypoint() removes pages occupied by the raw image from the page bitmaps.
185 static uint32_t			gIOHibernateFreeRatio = 0;	 // free page target (percent)
344 	// free page
359     uint32_t		 page = *pPage;
363     while ((bitmap = hibernate_page_bitmap_pin(list, &page)))
365 	count = hibernate_page_bitmap_count(bitmap, TRUE, page);
368 	page += count;
369 	if (page <= bitmap->last_page)
373     *pPage = page;
375 	count = hibernate_page_bitmap_count(bitmap, FALSE, page);
2055     vm_offset_t  ppnum, page;
2147     for (page = 0; page < count; page++)
2149 	HIBLOG("fileExtents[%d] %qx, %qx (%qx)\n", page,
2150 		fileExtents[page].start, fileExtents[page].length,
2151 		fileExtents[page].start + fileExtents[page].length);
2209         page = atop_32(kvtophys(hibernateBase));
2211         header->restore1CodePhysPage = page;
2219         for (page = 0; page < count; page++)
2222                 restore1Sum += hibernate_sum_page(src, header->restore1CodeVirt + page);
2290             for (page = 0; page < count; page += page_size)
2292                 phys64 = vars->previewBuffer->getPhysicalSegment(page, NULL, kIOMemoryMapperNone);
2293                 sum1 += hibernate_sum_page(src + page, atop_64(phys64));
2336         page = atop_32(KERNEL_IMAGE_TO_PHYS(hibernateBase));
2337         count = atop_32(round_page(KERNEL_IMAGE_TO_PHYS(hibernateEnd))) - page;
2339                                         page, count,
2440                 for (page = ppnum; page < (ppnum + count); page++)
2442                     err = IOMemoryDescriptorWriteFromPhysical(vars->srcBuffer, 0, ptoa_64(page), page_size);
2445                         HIBLOG("IOMemoryDescriptorWriteFromPhysical %d [%ld] %x\n", __LINE__, (long)page, err);
2449                     sum = hibernate_sum_page(src, page);
2516                 ppnum = page;
2819 	unsigned int page;
2835 	for (page = 0; page < count; page++)