Arch Linux

gshearer

Member

From: Cincinnati, OH, USA

Registered: 2014-01-14

Posts: 54

Intel VT-d IOMMU BIOS/UEFI Options

Hey All,

  I'm building a new rig to tinker with QEMU VFIO etc (seems like many people are lately.)

  My BIOS has some options that are unknown to me nor can I find any documentation with my Google-Fu. If anyone has any advice on how these should be set, or further information, I'd appreciate it!

PFMMIO 64 Bit resource padding -- options:  1M, 2M, 4M, 8M, 16M, 32M, 64M, 128M, 512M, 1G, 2G, 4G, 8G

MMIO High Base -- options: 56T, 40T, 24T, 16T, 4T, 1T

SR-IOV -- options; Enabled or Disabled

I'm using 512M, 1T, and Enabled.

Thanks for your time!

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George Shearer
doc at lame dot org
Linux Nerd since the MCC Interim Days

Lone_Wolf

Administrator

From: Netherlands, Europe

Registered: 2005-10-04

Posts: 15,165

Re: Intel VT-d IOMMU BIOS/UEFI Options

SR-IOV appears to mean "single-root I/O virtualization" and has to do with network virtualization [1] .

Searching for the other 2 options gives no usefull results.
Maybe a tech manual for your motherboard can shed some light, what brand and model is the mobo ?

[1]
https://en.wikipedia.org/wiki/X86_virtu … .28VT-c.29

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Disliking systemd intensely, but not satisfied with alternatives so focusing on taming systemd.

clean chroot building not flexible enough ?
Try clean chroot manager by graysky