On Thu, 9 Jul 2015 00:11:08 -0400 michelbutz <[email protected]> wrote:
:>Yes I meant SPKA 0(1) :>I writing a macro the entails a wait at times it :>Would be hard to determine the storage key :>of the ECB Why is it "hard" to determine the storage key of the ECB? What routine provides the storage? If all you are doing is blindly IVSK and SPKA, you may as well set to key zero - if you absolutely trust the ECB provider no reason not to. :>Sent from my iPhone :> :>> On Jul 8, 2015, at 11:30 PM, Binyamin Dissen <[email protected]> wrote: :>> :>> On Wed, 8 Jul 2015 17:09:54 -0400 michelbutz <[email protected]> wrote: :>> :>> :>I know that a S0C4 reason 4 occurs anytime the storage key doesn't match the PSW key bits 8 - 11 :>> :>> PIC-4 if alter or fetch with fetch protection. :>> :>> :> Would IVSK. R1,R2 and SPKA 0(R11) prevent this obviously one would have to be in supervisor state to this as they are both privilege inst to qualify that if the storage key is 0 :>> :>> I presume you mean SPKA 0(1) :>> :>> But if you know the storage is in key zero, why bother with the IVSK? :>> :>> And even more, why are you accessing the protected storage? What is your :>> business case? -- Binyamin Dissen <[email protected]> http://www.dissensoftware.com Director, Dissen Software, Bar & Grill - Israel Should you use the mailblocks package and expect a response from me, you should preauthorize the dissensoftware.com domain. I very rarely bother responding to challenge/response systems, especially those from irresponsible companies. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
