[openib-general] Re: RDMA memory registration

[Rimmer, Todd]

> You add a hook to the kernel so it tells you if a page is about to be
> paged out or otherwise move.  Then you set a bit in the adapter's page
> table so that it won't try to access that page without telling you.
> If the adapter asks for the page, you get the kernel to fault the page
> in and program the new physical mapping in the adapter.

But that implies the hardware has an MMU and it also puts an interrupt in the path per page sent.

Wasn't the assertion that there was no MMU in the hardware?

Todd Rimmer