Authorizing Address Space

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#309

From: Paul V DAngelo
Date: Mon, 05 Sep 2005 17:46

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I have a client who would like me to develop a presentation on an
Authorizing Address Space.
I suggested simply writting an SVC that switches Authorizations instead
of and address space.
That Suggestion was fround upon.
They are building this facility to alow   Vendor Products and As well As
IBM products
to issues Authorized Services where I the Vendor does not usually/easily
permit it.
The customer would like to develop a cross memory environment;
issue  a Program Call Instruction form a vendor product address space to
thecustomers
Authorizing  Server Address Space and allow the caller to be in
Supervisor State key xx or APF Authorized.

I believe an SVC could be developed to accomplished this, but I suspect
theres more to this that
what they are telling  me.

My first question  is when the Cross Memory Program is executed, it would
Sets the  APF Authorization bit
and return.  WHo IS in the APF state, The entire Calling Address Space or
only  the invoking TCB ?

Can anyone on the list speak to the pros vs cons of developing an
Authorizing SVC
against an Authorizing Address Space.

I also suspect that Some Security Checking would be done in this Address
Space,
since that was the first concept they had me explore.

paul d'angelo
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From: Paul V DAngelo <essteam@juno.com>
Newsgroups: bit.listserv.asm370
Subject: Authorizing Address Space
Date: Mon, 5 Sep 2005 10:46:21 -0700
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