Linas,

No.  Either your storage key matches, or it doesn't.  If it matches, you get
read and write access, if it doesn't match, you get neither.  (You _do_ get
a S0C4 abend.)

Mark Post

-----Original Message-----
From: Linas Vepstas [mailto:linas@;linas.org]
Sent: Monday, November 11, 2002 12:57 PM
To: [EMAIL PROTECTED]
Subject: Re: CPU Arch Security [was: Re: Probably the first published
shell code]


-snip-
It has been years since I last looked at the 390 instruction set.  Can't one
set a read-only mode for selected PSW keys?

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