Amount of memory overhead increases with hw assisted virtualization cpu?

Hello

browsing through some content, this paragraph has triggered my attention:

What helps support CPU virtualization increases the amount of memory.

Why is this? I can understand that if the MMU does not support the RVI/EPT, the management of the TLB and fictitious tables won't in a memory overload, but I don't see how hw assisted virtualization CPU has to do with it. (I guess that ESXi needs these same tables if using BT).

I must be missing something here, someone willing to help me? Thank you!

I don't know where this text comes from, but it's a mess.  The mention of version 9 of material almost certainly guarantee that it is in reference to virtualized virtualization assisted by material, which was officially introduced in version 9 hardware.  If so, the second sentence is a complete non-sequitur. The third sentence is again, very certainly with respect to virtualization to support virtualized.

Using (as opposed to virtualization) hardware-assisted virtualization is independent of the version of the virtual hardware, does not increase the amount of memory required General and does not restrict vMotion to hosts that support hardware-assisted virtualization.

Hardware support for virtualization virtualization does all of the things mentioned, * except * for a more effective implementation of the hypervisor.

Tags: VMware

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