Thanks, Alan.

Regards, 
Richard Schuh 


-----Original Message-----
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Alan Altmark
Sent: Friday, July 13, 2007 2:50 PM
To: [email protected]
Subject: Re: IUCV Interruptions

On Friday, 07/13/2007 at 04:44 EDT, "Schuh, Richard" <[EMAIL PROTECTED]> 
wrote:
> Is there any documentation of the changes to IUCV interrupts in 64-bit

mode? 
> There is a section in CP Programming Services that documents the 
interrupts in 
> 31 bit mode, but does not say a word about 64 bit operation.  

Nothing is changed.  Except for the IPARML itself (I think), all 
IUCV-related addresses remain 31-bit, even in 64-bit addressing mode.
So, 
all buffers must reside below 2GB.

Alan Altmark
z/VM Development
IBM Endicott

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