Indeed those CPU resources are shared between sibling hyperthreads on same CPU
core.
There is currently no mechanism merged upstream to completely mitigate
SMT-enabled scenarios.
Note that this is also true for L1TF.
There are several proposal to address this but they are still in early
Hi all
Fill buffers, load ports are shared between threads on the same physical core.
We need to run more than one vm on the same physical core.
Is there any complete mitigation for environments utilizing SMT?
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