Is it possible to disable PG in VMM?

[watermirror]

Hi.
I have successfully run my VM follow Intel's manaual.
Then ,I want to make a little change:
When VM exit to VMM normally, Is it possiable to disable PG in VMM, let the VMM run in flat mode, or switch Page Table?

[feryno]

Hi.
I have successfully run my VM follow Intel's manaual.
Then ,I want to make a little change:
When VM exit to VMM normally, Is it possiable to disable PG in VMM, let the VMM run in flat mode, or switch Page Table?

root mode must be run with paging enabled and so then protected mode must be also enabled
it is possible to allow guest to run with paging and protected mode disabled = unrestricted guest mode (so then guest may run e.g. real mode) - but your CPU must have such feature (core i architecture should have it, core 2 duo not)
the best mode for root mode is long mode (all current Intel CPUs with VMX support it) - you can then support all modes for guest from 16 bit real mode if the CPU has unrestricted guest mode feature - upto 64 bit long mode