Meltdown and Spectre???

Any technical questions about the Epiphany chip and Parallella HW Platform.

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Meltdown and Spectre???

Postby rontheo » Tue Jan 09, 2018 1:54 am

Forgive my ignorance on the subject, but are Epiphany chips immune to all this talk of Meltdown and Spectre?
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Re: Meltdown and Spectre???

Postby jar » Tue Jan 09, 2018 7:09 pm

Epiphany cores are immune. There is no speculative execution on Epiphany. The code pays for branches. There is no cache. All the on-chip memory and the shared DRAM is addressable.

If you asked about the ARM host cores...yes, they are vulnerable to variants 1 and 2.
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Re: Meltdown and Spectre???

Postby rontheo » Wed Jan 10, 2018 2:31 am

Thanks Jar for that information.
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Re: Meltdown and Spectre???

Postby zmc » Wed Jan 10, 2018 2:03 pm

The Zynq 7000 in the Parallella has Cortex A9 cores. For more information checkout the arm website here:

https://developer.arm.com/support/security-update
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