RE: Any way to map physical address 0xe0000000?

Hello Alexandre,

Physical memory lying in the kernel area (i.e., beyond 3GB) cannot be mapped
idempotently. You need to remap that memory to a virtual address in user
area. You can do so by leveraging sigma0's RPC protocol (see the spec,
chapter 7.6), requesting sigma0 to map the VGA or other device memory to a
specified virtual address.

Hope this helps,
-Jan

--
Jan Stoess
System Architecture Group
University of Karlsruhe
Phone: +49 (721) 608-4056 
Fax: +49 (721) 608-7664 
eMail: [email protected]