Re: How to access VRAM physical address on L4 ?

Philipp Kupferschmied <[email protected]> Wed, 10 Sep 2008 18:36:12 +0200
Newsgroups gmane.comp.micro-kernel.l4.l4ka.general
Message-ID <[email protected]>
> Our own pager not sigma0 can do these map?

Your pager has to "ask" sigma0 for the page(s) it needs, and it has to set its receive window accordingly. The receive window allows the pager to specify to where the fpage that sigma0 returns is mapped.
Convenience functions for requesting memory from sigma0 can be found in user/include/l4/sigma0.h

Hope this helps,
Philipp