Hi,
Welcome to Microsoft Q&A!
Information of dirty virtual memory pages
The information is stored in the page table.
A page table is the data structure used by a virtual memory system in a computer operating system to store the mapping between virtual addresses and physical addresses.
Each page table entry (PTE) holds the mapping between a virtual address of a page and the address of a physical frame. There is also auxiliary information about the page such as a present bit, a dirty or modified bit, address space or process ID information, amongst others.
I suggest you could refer to the thread: https://stackoverflow.com/questions/41433299/how-the-os-knows-a-page-is-dirty-in-mapped-memory
Best Regards,
Jeanine
If the answer is the right solution, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.