"Cristina Rivera" <cris_apricot@hotmail.com> writes: > Hi there! > > > > I have some questions about memory management in linux. Is there any way to obtain > the physical address of the pages that a process is ocuppying when it's loaded into > memory or it's decided by MMU and there's no way to get this and I only can get the > virtual address? The physical addresses for all the pages that are present in RAM are stored in the process' page tables. The mm/memory.c:follow_page function shows how to see whether the page for a given address is present in memory. Given the page table entry (PTE) for a present page, you can get the page frame number (pfn), the page descriptor, the physical address, etc. -- --Ed L Cashin | PGP public key: ecashin@uga.edu | http://noserose.net/e/pgp/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
