Revision as of 05:28, 1 May 2008 view source osdev>Stevo14 →‎Creating Your First Page Table: Page alignment notes ← Older edit		Revision as of 05:34, 1 May 2008 view source osdev>Stevo14 →‎Creating a Blank Page Directory: Page alignment notes Newer edit →
Line 24: If you know where the end of your kernel is, then you can put the page directory right after it. Note that all of your paging structures need to be at page aligned addresses, so it's probably a good idea to make a page allocator first and have that dish out pages for your paging code. Until you create a proper page allocator though, simply finding the first free page-aligned address after the kernel will be fine. <pre> //the page directory comes right after the kernel - NOTE: make sure the address is page aligned! unsigned int page_directorypage_aligned_end = (((unsigned int)end) & 0xFFFFF000) + 0x1000; unsigned int page_directory = (unsigned int)page_aligned_end; </pre> Line 35 ⟶ 36: <pre> //this is only a temporary solution. Find out where your kernel ends! unsigned int page_directory = (unsigned int) 0x9C000;//Make sure that this address is properly page aligned </pre>

Setting Up Paging: Difference between revisions