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Correct Virtual Processor Identifier (VPID)

Sergey_Pisarev
Beginner
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Hello !

Let’s say hypervisor runs virtual machine with VPIDs set to 1 for all virtual cores(Vmcs). While this hv and VM is running, I start another hv.

Will this second hv be able to generate unique VPID for VM it wants to run? If not and second hv sets VPID for it’s VM also to 1, will one of the VM use stale entries in TLB ?

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Quoc-Thai_L_Intel
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Found some info that is related to the hypervisor and VPID that may provide some answers for you:

http://www.cs.dartmouth.edu/~sergey/cs108/2014/TorreyGuestLecture-Hypervors.pdf

-Thai

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Sergey_Pisarev
Beginner
1,437 Views

Thank you

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