VMCS (Virtual Machine Control Structure)
E653441
VMCS (Virtual Machine Control Structure) is a hardware-defined data structure used by Intel VT-x to manage and control the state transitions and configuration of virtual machines during virtualization.
All labels observed (1)
| Label | Occurrences |
|---|---|
| VMCS (Virtual Machine Control Structure) canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T7278727 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: VMCS (Virtual Machine Control Structure) Context triple: [Intel VT-x, hasComponent, VMCS (Virtual Machine Control Structure)]
-
A.
VMX
VMX is a vector processing extension to the PowerPC architecture designed to accelerate multimedia, signal processing, and other parallelizable computations.
-
B.
Intel VT-x
Intel VT-x is Intel's hardware-assisted virtualization technology that enables more efficient and secure running of multiple operating systems on x86 processors.
-
C.
Intel VT-x or AMD-V
Intel VT-x or AMD-V are hardware-assisted virtualization technologies built into modern Intel and AMD processors that enable efficient and secure running of virtual machines.
-
D.
Intel VT-d
Intel VT-d is Intel’s hardware-assisted I/O virtualization technology that enables secure and efficient direct device assignment to virtual machines.
-
E.
VMware ESXi
VMware ESXi is a bare-metal hypervisor from VMware that enables virtualization by running multiple virtual machines directly on server hardware without a traditional underlying operating system.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: VMCS (Virtual Machine Control Structure) Target entity description: VMCS (Virtual Machine Control Structure) is a hardware-defined data structure used by Intel VT-x to manage and control the state transitions and configuration of virtual machines during virtualization.
-
A.
VMX
VMX is a vector processing extension to the PowerPC architecture designed to accelerate multimedia, signal processing, and other parallelizable computations.
-
B.
Intel VT-x
Intel VT-x is Intel's hardware-assisted virtualization technology that enables more efficient and secure running of multiple operating systems on x86 processors.
-
C.
Intel VT-x or AMD-V
Intel VT-x or AMD-V are hardware-assisted virtualization technologies built into modern Intel and AMD processors that enable efficient and secure running of virtual machines.
-
D.
Intel VT-d
Intel VT-d is Intel’s hardware-assisted I/O virtualization technology that enables secure and efficient direct device assignment to virtual machines.
-
E.
VMware ESXi
VMware ESXi is a bare-metal hypervisor from VMware that enables virtualization by running multiple virtual machines directly on server hardware without a traditional underlying operating system.
- F. None of above. chosen
Statements (58)
| Predicate | Object |
|---|---|
| instanceOf |
Intel VT-x structure
ⓘ
hardware-defined data structure ⓘ virtualization control structure ⓘ |
| accessedByInstruction |
VMCLEAR
ⓘ
VMLAUNCH ⓘ VMPTRLD ⓘ VMPTRST ⓘ VMRESUME ⓘ VMWRITE ⓘ |
| accessedByInstruction | VMREAD ⓘ |
| associatedWith |
Intel x86 architecture
NERFINISHED
ⓘ
VMX operation ⓘ virtual machine extensions ⓘ |
| controls |
EPT configuration
ⓘ
I/O port exiting ⓘ MSR read and write exiting ⓘ VMX preemption timer ⓘ exception bitmap ⓘ guest CR0 value ⓘ guest CR3 value ⓘ guest CR4 value ⓘ guest segment descriptors ⓘ host CR0 value ⓘ host CR3 value ⓘ host CR4 value ⓘ host segment selectors ⓘ interrupt handling behavior ⓘ virtualized APIC behavior ⓘ |
| definedBy | Intel 64 and IA-32 Architectures Software Developer’s Manual NERFINISHED ⓘ |
| enables |
VM entry
ⓘ
VM exit ⓘ nested page table usage via EPT ⓘ |
| fullName | Virtual Machine Control Structure NERFINISHED ⓘ |
| hasComponent |
EPT pointer
ⓘ
I/O bitmaps pointer ⓘ MSR bitmaps pointer ⓘ VM-entry control fields ⓘ VM-entry information fields ⓘ VM-execution control fields ⓘ VM-exit control fields ⓘ VM-exit information fields ⓘ VMCS revision identifier ⓘ VMX-abort indicator ⓘ guest-state area ⓘ host-state area ⓘ posted-interrupt descriptor address ⓘ virtual-APIC address ⓘ |
| maintains |
control fields for VMX operation
ⓘ
guest processor state ⓘ host processor state ⓘ |
| scope | per logical processor ⓘ |
| supports | nested virtualization (via shadow VMCS and related mechanisms) ⓘ |
| usedBy | Intel VT-x NERFINISHED ⓘ |
| usedFor |
configuring virtualization controls
ⓘ
controlling guest and host state transitions ⓘ hardware-assisted virtualization ⓘ managing virtual machine execution ⓘ |
| vendor | Intel NERFINISHED ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: VMCS (Virtual Machine Control Structure) Description of subject: VMCS (Virtual Machine Control Structure) is a hardware-defined data structure used by Intel VT-x to manage and control the state transitions and configuration of virtual machines during virtualization.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.