Intel VT-d
E163096
Intel VT-d is Intel’s hardware-assisted I/O virtualization technology that enables secure and efficient direct device assignment to virtual machines.
All labels observed (5)
How this entity was disambiguated
This entity first appeared as the object of triple T1422849 — 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: Intel VT-d Context triple: [Intel Xeon, supportsFeature, Intel VT-d]
-
A.
VMX
VMX is a vector processing extension to the PowerPC architecture designed to accelerate multimedia, signal processing, and other parallelizable computations.
-
B.
PCI Express
PCI Express is a high-speed serial computer expansion bus standard used to connect components like graphics cards, SSDs, and network cards to a motherboard.
-
C.
KVM
KVM (Kernel-based Virtual Machine) is a Linux kernel module that turns the kernel into a hypervisor, enabling hardware-assisted virtualization of multiple virtual machines.
-
D.
Intel Xeon
Intel Xeon is a family of high-performance x86 processors designed by Intel for servers, workstations, and data center applications requiring reliability, scalability, and advanced multi-core processing.
-
E.
Hyper-V
Hyper-V is Microsoft's native hypervisor platform that enables the creation and management of virtual machines on Windows systems.
- 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: Intel VT-d Target entity description: Intel VT-d is Intel’s hardware-assisted I/O virtualization technology that enables secure and efficient direct device assignment to virtual machines.
-
A.
VMX
VMX is a vector processing extension to the PowerPC architecture designed to accelerate multimedia, signal processing, and other parallelizable computations.
-
B.
PCI Express
PCI Express is a high-speed serial computer expansion bus standard used to connect components like graphics cards, SSDs, and network cards to a motherboard.
-
C.
KVM
KVM (Kernel-based Virtual Machine) is a Linux kernel module that turns the kernel into a hypervisor, enabling hardware-assisted virtualization of multiple virtual machines.
-
D.
Intel Xeon
Intel Xeon is a family of high-performance x86 processors designed by Intel for servers, workstations, and data center applications requiring reliability, scalability, and advanced multi-core processing.
-
E.
Hyper-V
Hyper-V is Microsoft's native hypervisor platform that enables the creation and management of virtual machines on Windows systems.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
Intel technology
ⓘ
hardware-assisted I/O virtualization technology ⓘ |
| abbreviationOf |
Virtualization Technology for Directed I/O
ⓘ
linked to:
Intel VT-d
|
| aimsAt |
improving virtualization performance
ⓘ
improving virtualization security ⓘ reducing I/O overhead in virtualized environments ⓘ |
| category |
computer hardware technology
ⓘ
virtualization technology ⓘ |
| compatibleWith |
Intel Xeon processors
ⓘ
linked to:
Intel Xeon
many Intel Core processors ⓘ |
| complements | Intel VT-x ⓘ |
| controls | device access to guest physical memory ⓘ |
| developer |
Intel
ⓘ
linked to:
Intel Corporation
|
| enables |
I/O virtualization
ⓘ
device passthrough ⓘ direct device assignment to virtual machines ⓘ |
| fullName |
Intel Virtualization Technology for Directed I/O
ⓘ
linked to:
Intel VT-d
|
| improves |
performance of high-throughput I/O workloads in VMs
ⓘ
security of multi-tenant virtualized systems ⓘ |
| introducedBy | Intel Corporation ⓘ |
| maps | device-visible addresses to host physical memory ⓘ |
| mitigates | DMA-based attacks ⓘ |
| provides |
fine-grained control of device access to memory
ⓘ
hardware-assisted device isolation ⓘ protection against malicious or faulty DMA ⓘ |
| relatedTo | Intel VT-x ⓘ |
| requires |
BIOS or UEFI firmware support
ⓘ
chipset support ⓘ operating system or hypervisor support ⓘ |
| standardizedIn | Intel VT-d specification ⓘ |
| supportedBy |
KVM
ⓘ
Microsoft Hyper-V ⓘ
linked to:
Hyper-V
VMware ESXi ⓘ Xen ⓘ |
| supports |
DMA remapping
ⓘ
IOMMU functionality ⓘ interrupt remapping ⓘ isolation of device DMA ⓘ protection domains ⓘ |
| usedFor |
PCI and PCIe device passthrough
ⓘ
assigning GPUs directly to virtual machines ⓘ assigning network adapters directly to virtual machines ⓘ |
| usedIn |
cloud virtualization environments
ⓘ
data center virtualization ⓘ desktop platforms ⓘ server platforms ⓘ workstation platforms ⓘ |
| uses | I/O Memory Management Unit ⓘ |
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: Intel VT-d Description of subject: Intel VT-d is Intel’s hardware-assisted I/O virtualization technology that enables secure and efficient direct device assignment to virtual machines.
Referenced by (32)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Intel VT-d
linked to: Intel VT-d
subject linked to:
Apollo Lake platform
subject linked to:
EPT (Extended Page Tables)
linked to: Intel VT-d
linked to: Intel VT-d