MSRs load/store

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Hi List,

My question is about VM-Exit & VM-Entry controls for MSRs on Intel's processors.

For VM-Exit, a VMM can specify lists of MSRs to be stored and loaded
on VM exits. But for VM-Entry, a VMM can only specify a list of MSRs
to be loaded on VM entries. Why does not the processor have the
feature that stores MSRs before loading new ones for VM entries?


Thanks,
Jiaqing
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