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Re: Contribution to the Hurd on L4
From: |
Bas Wijnen |
Subject: |
Re: Contribution to the Hurd on L4 |
Date: |
Fri, 31 Dec 2004 00:30:36 +0100 |
User-agent: |
Mozilla Thunderbird 0.9 (X11/20041124) |
Matthieu Lemerre wrote:
I'm happy each time I can understand something, by myself or with your
help, and I thank you a lot to provide it to me.
But maybe I should post my messages to help-hurd? I don't want to
flood the mailing list with uninterresting questions.
No, help-hurd is for questions from users, not developers. Everything
regarding the L4 port should be on this list, for the Mach port, there
is debian-hurd for debian related things, and bug-hurd for the rest
(except user questions).
From your original e-mail:
> -What is the root capability? It does not appear in the hurd-on-l4
> document. Is it the same as the master control capability, that I
> understand as a right to do any RPC on a server?
No. The master control capability is not a universal thing, every
capability can choose to either or not provide such a thing. The root
capability is built into the capability server (well, I think the patch
I submitted[1] for that hasn't been applied yet, but it should be ;-) ).
It is the only way to access a capability server without having a
capability for it. I expect this functionality to be used mostly (if
not only) for aquiring a capability from the server, with which further
RPCs can be done. For example, the task server needs it to provide task
info capabilities.
Thanks,
Bas
[1] http://lists.gnu.org/archive/html/l4-hurd/2004-08/msg00044.html
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