This content has not been validated; it was AI-generated following the x86-64 ISA Documentation generation process to maintain high quality. However, as no human has verified this data, errors may exist. If the accuracy of this data is critical, please consult the Intel SDM. The model used to generate this is gemma4:31b
INVEPT
Invalidates Extended Page Table (EPT) translations. It flushes the EPT caches (TLBs) based on the specified type of invalidation, either for a single EPTP or for all EPTPs.
The table after the description covers what the source and destinations can be.
| source | destination(s) |
|---|---|
| m128 | #I |
DO NOT support LOCK
This instruction is only available when the processor is operating in VMX root operation. It is NOT supported in VMX non-root operation or in compatibility mode.
The INVEPT instruction requires an operand pointing to an EPT pointer descriptor. This descriptor MUST be a 128-bit aligned memory region containing a 64-bit EPT pointer (EPTP) and a 64-bit invalidation type.
The invalidation type MUST be one of the following:
- Single-context invalidation: Invalidates translations associated with the EPTP specified in the descriptor.
- Global invalidation: Invalidates translations for all EPTPs.
Failure to align the memory operand to a 16-byte boundary MAY result in a general-protection exception (#GP). Using an unsupported invalidation type value SHALL result in an invalid-opcode exception (#UD).