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CPU Support

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From Open-IOV
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Revision as of 00:31, 2 March 2023 by Arthur (talk | contribs)
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In order to use mediated device functionality you may need to set some or all of the following settings in your machine's UEFI.

An absence of critical technical documentation has historically slowed growth and adoption of developer ecosystems for GPU virtualization. +

This CC-BY-4.0 licensed content can either be used with attribution, or used as inspiration for new documentation, created by GPU vendors for public commercial distribution as developer documentation. +

+Where possible, this documentation will clearly label dates and versions of observed-but-not-guaranteed behaviour vs. vendor-documented stable interfaces/behaviour with guarantees of forward or backward compatibility.

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UEFI Setup

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Intel CPUs (VT-d)

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Optimal UEFI Settings +

IOMMU >> Enabled +

SR-IOV Support >> Enabled +

VT-x >> Enabled +

ARI Mode >> Enabled +

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AMD CPUs (AMD-v)

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Optimal UEFI Settings +

SVM Mode >> Enabled +

SR-IOV Support >> Enabled +

ACS Enable >> Enabled +

IOMMU >> Enabled +

PCI AER Support >> Enabled +

ACS Enable >> Enabled +

ARI Mode >> Enabled +

Note to AMD CPU users: If you are using a first generation Ryzen or ThreadRipper platform you may need to update your motherboard UEFI to make proper use of IOMMU Groups. If your motherboard manufacturer has not made an update available you may need to apply an ACS override patch. Successive AMD CPU platforms are unaffected. +

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