On Friday, 09/25/2009 at 11:30 EDT, "Thompson, Michael E" <[email protected]> wrote: > We are setting up a encryption product that uses the in-kernel crypto > facility. IBM has said that this should use the Crypto processors when > going through the api. We are trying to verify that we are truly using > the Crypto processors. Has anyone done this and secondly how can we > verify that the Crypto processors are being invoked? We are running on a > z10, zVM 5.4 and RHel 5.4.
My source tells me that the in-kernel crypto support uses only CPACF (on-CPU crypto), not the cryptographic coprocessors. To figure out if Linux is using it, you would use TRACE I B92E and TRACE I B92F to capture the CIPHER MESSAGE and CIPHER MESSAGE WITH CHAINING instructions. Alan Altmark z/VM Development IBM Endicott ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
