[eros-arch] Re: [CapROS-devel] Problem with the semantics of address translation and keeper invocation

Charles Landau clandau at macslab.com
Fri Sep 2 23:03:01 EDT 2005


At 10:53 PM -0400 9/2/05, Eric Northup wrote:
>I don't quite understand the case where the node defining the whole
>address space is not directly named by the address space root
>capability.  Even if there are several layers of non-translating/wrapper
>nodes, doesn't the first wrapper still define the address space?

In KeyKOS, a segment can be larger than the size of an address space, 
and a domain root can point to such a segment (though there's little 
reason to do so). I'm not sure if this is allowed in EROS/CapROS. The 
first node with SSC/BLSS less than or equal to 6 (corresponding to 
2^32) defines the whole address space.


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