VMX - how to get GPRs of VM

VMX - how to get GPRs of VM

vid512的头像

Hi,

How can I find values of general purpose registers of running VMX virtual machine? Manual suggests that in some cases (like transitional stages between CPU modes, ...) hypervisor should emulate execution. For this, hypervisor needs to know values of GPRs.

How to get them? I don't see any encodings for GPRs in list of VMCS encodings.

Thank you

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vid512的头像

OK, I figured out, value of GPRs stay unmodified after VM-exit. But this is not excplicitly stated anywhere in manual. I think it deserves a mention in future revisions of manual.

thanks

frankspencer的头像

I thought this info was in the manual?

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vid512的头像

Could be that I have overlooked it. Can you provide reference where in the manual is it?

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