Daniele Bellucci <bellucda@tiscali.it> writes: > Hi Ed, > tnx for you quick answer > >> I looked in the pentium manuals (they're great for answering this kind >> of thing), and it doesn't really come out and say the key is a virtual >> address, but I am pretty sure it is. > > For example: is 0x80000000 a key? That's my impression: on x86, if you want to use 0x80000000 as a virtual address, then instead of looking the translation up through the page tables starting with the directory cr3 points to, you use that VA as a key to find the pte in the TLB. >> This they say explicitly. It's a page table entry or page directory >> entry. > > by the mean of a pointer to a pte_t ? No, it's the pte itself. A pointer would mean that you'd have to do more to get the translation, like going to memory, and the gains from having a TLB wouldn't be as great. -- --Ed L Cashin PGP public key: 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/
