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vmm vmx: Allocate vpids on demand as each vCPU is initialized.
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Authored by jhb on Oct 27 2022, 3:05 PM.
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Details

Summary

Compared to the previous version this does mean that if the system as
a whole runs out of dedicated vPIDs you might end up with some vCPUs
within a single VM using dedicated vPIDs and others using shared
vPIDs, but this should not break anything.

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rG FreeBSD src repository
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