Processor serial number (PSN)

Note: This was originally posted on 22nd June 2012 at http://forums.arm.com

Is ARM's processor serial number (PSN) visible in the BIOS and over the internet like Intel's or AMD's PSN?  Or is ARM's PSN visibility hidden by default providing users privacy? A visual PSN renders the BIOS vulnerable to hacking and firmware rootkits.
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  • Note: This was originally posted on 29th June 2012 at http://forums.arm.com

    I do  not want to have TrustZone used. How to disable TrustZone?

    ARM Cortex A8 has TrustZone. I asked Freescale if their Freescale i.MX515 which has ARM Cortex A8 has TrustZone. Freescale support answered:  "Reference Manual does not contain any mentiones
    about ARM FreeZone - this means the i.MX51 does not support it."  I am considering purchasing a Genesi linux netbook or a Hercules Linux netbook which have Freescale i.M515. Does this mean there is no TrustZone in the i.MX515 or that it is there but is disabled?
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