[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: proxy memory objects

From: Roland McGrath
Subject: Re: proxy memory objects
Date: Wed, 20 Nov 2002 21:10:49 -0500 (EST)

> So is it correct to just mask off the unallowed protection bit and grant the
> mapping silently, making it fail if the actual permissions the server gave
> in the proxy memory object are violated?  Or should vm_map already do some
> initial permission check and return an error?

I don't think vm_map should return an error.  There might be practical
reasons for this, but my rationale is simply that the behavior ought to
mimic what a real memory object would do.  i.e., we want io_map to return a
memory object and the user doesn't know whether the server used the proxy
object facility or just returned a port of his own.

reply via email to

[Prev in Thread] Current Thread [Next in Thread]