Regarding Intel VMX, I found that there is IA-32e mode guest bit field in vm-entry controls.
Based on the Intel manual, when this bit is set, the VM entries start from IA-32e mode.
What is the benefit of starting VCPU from ia-32e mode?
Is it just one of VM optimization to fast-forward some initial boot steps of VCPU?
Also, if this bit has not been set, what is the default mode of the VCPU when it initially enters to the VM?
