computer science

List of IOMMU-supporting hardware

List of IOMMU-supporting hardware is a computer science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of IOMMU-supporting hardware rather than just read about it. In short: This article contains a list of virtualization-capable IOMMU-supporting hardware. Intel based List of Intel and Intel-based hardware that supports VT-d (Intel Virtualization Technology for Directed I/O).

Key takeaways

List of IOMMU-supporting hardware belongs to computer science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of IOMMU-supporting hardware to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of IOMMU-supporting hardware from memory before moving on to harder problems.

Reference excerpt

This article contains a list of virtualization-capable IOMMU-supporting hardware.

Intel based List of Intel and Intel-based hardware that supports VT-d (Intel Virtualization Technology for Directed I/O).

CPUs

Server The vast majority of Intel server chips of the Xeon E3, Xeon E5, and Xeon E7 product lines support VT-d. The first—and least powerful—Xeon to support VT-d was the E5502 launched Q1'09 with two cores at 1.86 GHz on a 45 nm process. Many or most Xeons subsequent to this support VT-d. See Advanced Search: feature=VT-d and segment=server for the full list.

Desktop

VT-d on i7 3930K and i7 3960X only works on C2 stepping.

Motherboards

Intel

Gigabyte

ASRock

Asus

(1) 48 GB with CPU as xeon x5680 and 8GB DIMMs

MSI

Chipset Intel Z490 Intel Z370 Intel Z170 Intel X99 Intel X79 Intel Q170 Intel Q150 Intel Q87 Intel Q77 Intel Q67 Intel Q45 Intel P55 Intel Q35, X38, X48 Q45 Intel HM87, QM87, HM86, C222, X99, C612, C226

AMD based List of AMD and AMD-based hardware that supports IOMMU. AMD's implementation of IOMMU is also known as AMD-Vi. Please note that just because a motherboard uses a chipset that supports IOMMU does not mean it is able to and the bios must have an ACPI IVRS table to enable the use of it. At least one Asus board is known to have faulty BIOSes with corrupt ACPI IVRS tables; for such cases, under Linux, it is possible to specify custom mappings to override the faulty and/or missing BIOS-provided ones through the use of the ivrs_ioapic and ivrs_hpet kernel parameters.

CPUs List of AMD-Vi and AMD-RVI capable AMD CPUs. All Ryzen processors so far (1xxx-7xxx) support it.

Desktop

Server AMD Opteron (3000, 4000 and 6000 series at least) AMD EPYC Series of Products Dell Poweredge 710 (4 x pcie 8-way sockets. Needs end opening for 16-way cards). Successfully set up libvirt qemu with Nvidia 1650 for gaming and Nvidia 720 for Kodi running two VMs simultaneously. 7.1 HDMI passthrough and 2160p.

Motherboards

Chipset AMD X570 AMD X470 AMD X370 AMD X300 AMD B350 AMD 890FX AMD 9-series AMD A55, A75, A85, A88X SR5650/SR5670/SR5690

Tested graphics card List of GPUs tested on some VirtualMachine with IOMMU.

qemu-kvm can't assign VGA and other PCI device at same time, due to SeaBIOS limitations (fixed on git).

AMD Note: Newer AMD cards no longer have FLR bug as of 2021. This bug required a host reboot when GPU is in undefined state. https://github.com/gnif/vendor-reset

Nvidia Note: Blackwell GPUs might suffer from the reset bug leading to a kernel soft-lock and might require a workaround

References

Worked examples

Example 1 — a first encounter with List of IOMMU-supporting hardware

Start with the simplest possible case. Write down what List of IOMMU-supporting hardware claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In computer science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of IOMMU-supporting hardware before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of IOMMU-supporting hardware ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of IOMMU-supporting hardware

In research: List of IOMMU-supporting hardware appears in computer science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of IOMMU-supporting hardware in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of IOMMU-supporting hardware is common in secondary-school and first-year university syllabi. It links to neighbouring topics Computer peripherals, Hardware virtualization, Lists of computer hardware, so understanding it makes those chapters shorter.
In everyday life: Look for List of IOMMU-supporting hardware outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of IOMMU-supporting hardware in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of IOMMU-supporting hardware means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of IOMMU-supporting hardware out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of IOMMU-supporting hardware in simple terms?

This article contains a list of virtualization-capable IOMMU-supporting hardware. Intel based List of Intel and Intel-based hardware that supports VT-d (Intel Virtualization Technology for Directed I/O).

Why does List of IOMMU-supporting hardware matter?

Because it connects several computer science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of IOMMU-supporting hardware?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of IOMMU-supporting hardware.