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VMPTRST

Stores the 64-bit value of the current VMCS pointer into a specified memory location.

The table after the description covers what the source and destinations can be.

DO NOT support LOCK

This instruction SHALL only be executed in VMX root operation. It is NOT supported in VMX non-root operation.

The destination memory operand MUST be a qword aligned to a 64-bit boundary to avoid potential performance penalties or alignment checks. Failure to execute this instruction in VMX root operation SHALL result in an #UD (Undefined Opcode) exception.