AMD will be spectre proof on zen2

seems like a way out when it comes to these exploits
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I am surprised that both Intel and AMD claim to be able to fix this so soon. I expected it to take longer. However with that said I don't trust either as far as these statements go.
 
I am not really surprised, just requires some simple rengineering on how it protects kernel and memory access. Keep in mind they have known about this exploit for awhile so they have had time to try to figure a way to fix it in the hardware which is better then software.
 
drescherjm said:
I am surprised that both Intel and AMD claim to be able to fix this so soon. I expected it to take longer. However with that said I don't trust either as far as these statements go.
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They were both originally made aware of this theoretical vulnerability a couple of years ago, and spectre and meltdown specifically middle of last year. If neither of them were working on a fix starting back then I'd be shocked. The pipeline for CPU architecture takes years. Zen was more than four years in the baking.
 
drescherjm said:
I am surprised that both Intel and AMD claim to be able to fix this so soon. I expected it to take longer. However with that said I don't trust either as far as these statements go.
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They look more as mitigations than full fixes. Keep in mind than current software patches for Spectre only mittigate the issue.
 
I would imagine that Zen2 design gets paused. Is this design subject to these vulnerabilities? If so, what needs to be redesigned? When this part gets redesigned, does it affect anything else which will require further redesign?

As long as part 3 isn't a yes, then for a 2019 launch, hopefully before risk wafers are ordered, I don't think it would add more than a couple of months.
 
Is it confirmed that Spectre will cause the slowdowns through mitigation though? They would just update the microcode right out of the gate and would be on the errata list?
 
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