Vol. 3C 30-21

VMX INSTRUCTION REFERENCE

If a memory destination operand effective address is outside the CS, DS, ES, FS, or GS 

segment limit.

If the DS, ES, FS, or GS register contains an unusable segment.
If the destination operand is located in a read-only data segment or any code segment.

#PF(fault-code)

If a page fault occurs in accessing a memory destination operand.

#SS(0)

If a memory destination operand effective address is outside the SS segment limit.
If the SS register contains an unusable segment.

#UD

If not in VMX operation.

Real-Address Mode Exceptions

#UD

If executed outside VMX root operation.

Virtual-8086 Mode Exceptions

#UD

The VMREAD instruction is not recognized in virtual-8086 mode.

Compatibility Mode Exceptions

#UD

The VMREAD instruction is not recognized in compatibility mode.

64-Bit Mode Exceptions

#GP(0)

If the current privilege level is not 0.
If the memory destination operand is in the CS, DS, ES, FS, or GS segments and the memory 

address is in a non-canonical form.

#PF(fault-code)

If a page fault occurs in accessing a memory destination operand.

#SS(0)

If the memory destination operand is in the SS segment and the memory address is in a non-

canonical form.

#UD

If not in VMX operation.