I can’t even figure out how to tell if it’s supported or not. If it is supported, I can’t figure out how to enable it. If it is enabled, idk where I should be seeing it in proxmox!
Where does it say that? On some boards you need to adjust iommu but other than that it shouldn’t be a problem if the CPU supports it. I am not an expert and if I am wrong I would like you to prove it.
Passed that you can take your skepticism somewhere else, I don’t really care that you don’t believe me, it doesn’t change the reality of how IOMMU groups work.
Grouping has become overall better since X570, but still not a given.
You are not logged in. However you can subscribe from another Fediverse account, for example Lemmy or Mastodon. To do this, paste the following into the search field of your instance: !selfhosted@lemmy.world
A place to share alternatives to popular online services that can be self-hosted without giving up privacy or locking you into a service you don’t control.
Rules:
Be civil: we’re here to support and learn from one another. Insults won’t be tolerated. Flame wars are frowned upon.
No spam posting.
Posts have to be centered around self-hosting. There are other communities for discussing hardware or home computing. If it’s not obvious why your post topic revolves around selfhosting, please include details to make it clear.
Don’t duplicate the full text of your blog or github here. Just post the link for folks to click.
Submission headline should match the article title (don’t cherry-pick information from the title to fit your agenda).
It has nothing to do with the board. It is the CPU that matters as PCIe is controlled by the CPU
This persons CPU supports it https://ark.intel.com/content/www/us/en/ark/products/236783/intel-core-i7-processor-14700k-33m-cache-up-to-5-60-ghz.html
Isn’t it fun being confidently wrong? https://iommu.info/
VT-d is a CPU function, but IOMMU groups are a function of the CPU, Chipset, and board configuration combo.
Where does it say that? On some boards you need to adjust iommu but other than that it shouldn’t be a problem if the CPU supports it. I am not an expert and if I am wrong I would like you to prove it.
The previous site already shows this in practice, but here’s a more technical explanation for you
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/virtualization_deployment_and_administration_guide/sect-iommu-deep-dive
Here’s some more real life examples: https://forum.level1techs.com/t/vfio-passthrough-in-2023-call-to-arms/199671/18
https://old.reddit.com/r/VFIO/comments/16czih3/how_to_find_a_motherboard_with_good_iommu_groups/
Passed that you can take your skepticism somewhere else, I don’t really care that you don’t believe me, it doesn’t change the reality of how IOMMU groups work.
Grouping has become overall better since X570, but still not a given.
Thank you