From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jacob Gorm Hansen <jacobg@diku.dk>
Subject: Re: problem with netfront.c
Date: Sun, 03 Apr 2005 20:06:09 -0700
Message-ID: <4250AF21.8040909@diku.dk>
References: <A95E2296287EAD4EB592B5DEEFCE0E9D1E39C7@liverpoolst.ad.cl.cam.ac.uk>
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Ian Pratt wrote:

> ********************************************************************************
>  A Rough Introduction to Using Grant Tables
>  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>                                               Christopher Clark, March, 2005.
> 

This looks quite interesting. Is there anything written up about the 
motivations for this design, and how it compares to other similar 
mechanisms, say, L4's grant-via-IPC system?

Are the grant references capabilities, or how do you prevent domains 
from inventing their own? Who takes care of garbage-collecting them when 
a domain exists or dies? Can a domain DoS a Xen-system by allocating all 
the grant refs in the system?

best,
Jacob