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alecco
on July 25, 2023
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Zenbleed
Couldn't VMs zero all registers when switching? It shouldn't be much more latency than a typical context switch. Also purge CPU cache to be safe.
sgerenser
on July 25, 2023
[–]
It does zero registers when context switching, but only the "logical" registers, not the physical ones, as described in this comment:
https://news.ycombinator.com/item?id=36855266
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