SSKE is not a facto for the way that z/VM uses Crypto.  This would only
affect z/OS using ICSF.
If you have a z/OS guest that has a queue / domain dedicated, you will want
to take a look at this.

____________________________________
Rick Barlow
Senior z/VM Systems Programmer
Nationwide Services Co., Web-zLinux Support,
z/VM and System z Linux Support
One Nationwide Plaza  MB-02-201
Columbus OH 43215-2220   U.S.A
Voice: (614) 249-5213    Fax: (614) 249-3912
mailto:[EMAIL PROTECTED]


The IBM z/VM Operating System <IBMVM@LISTSERV.UARK.EDU> wrote on 10/29/2007
12:38:08 PM:

> IBMVM@LISTSERV.UARK.EDU
>
> I just received a note from our h/w folks asking if VM is
> susceptible to this problem:
> CMOS MCL FIX G40963.045
>
> Release Date: 2007/10/17
>
> Alert: HIPER
>
> MCL installation: NONDISRUPTIVE
>
> MCL contents:
> This fix addresses an issue that can result in a system checkstop
> (SRC 24310002 9801Cxxx). The issue involves use of the "conditional-
> SSKE facility" (conditional-Set Storage Key Extended facility). The
> issue can occur during a very narrow timing window when SSKE
> operations are simultaneously executing on multiple processors.
> Exposure to the issue exists when the conditional-SSKE facility is
> supported by the machine and the operating system exploits the
> conditional-SSKE facility. Driver-67L provides machine support for
> the conditional-SSKE facility. The RSM (Real Storage Manager)
> component of z/OS 1.7 (with PTF UA24272), 1.8 and 1.9 exploit the
> conditional-SSKE facility. As such, z9 systems at Driver-67L and
> running z/OS 1.7 (with PTF UA24272), 1.8 or 1.9 are exposed to this
> issue. The conditional-SSKE facility is described in "z/Architecture
> Principles of Operation" (SA22-7832-05).
> Just having returned to work following a bout with the flu, I
> thought I would take the path of expedience and ask the list. My
> inbox is full of unread mail, so I have plenty to do today without
> having to dig too deeply into HIPER MCLs.
> Regards,
> Richard Schuh

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