Cross posted to Linux-390 and IBMVM

First, my understand of virtualizing crypto is that if any of the cards are
defined as accelerators then CRYPTO APVIRT in the directory will give linux
an accelerator.   If you want linux to have a coprocessor, you’d have to
dedicate one.    If you want a lot of servers to have coprocessors (more
than the HW cards to dedicate), you’d get rid of the accelerators and make
them all coprocessors.  Is my understanding correct?

 And to do the AES master key load, it has generally been done from z/OS
here.   It looks like for my z/vm only boxes TKE is required, but I could
use the CCA package to generate some for a test only scenario.

If I do want to try that CCA key load on a non prod box, I’m thinking I
would have to dedicate all of the coprocessors to a Linux guest and create
them there.  Then undedicate and then any guest with an APVIRT would find
valid master keys and would then be able to “zkey generate” a secure key
for use in each disk.

Am I on the right track?

Marcy

-- 
Marcy

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