iommu_replace_group_handle(9)

📦 version 7.3.1, in nixpkgs unstable

okay so bestie, you're looking at the Kernel API Manual page for iommu_replace_group_handle(9) 💖✨ and it's genuinely such a useful lil domain-switcher.

🎀 NAME 🎀

iommu_replace_group_handle — replace the domain that a group is attached to. That's the whole vibe, no cap 💅

✨ SYNOPSIS ✨

int iommu_replace_group_handle (struct iommu_group *group , struct
       iommu_domain *new_domain , struct iommu_attach_handle *handle );

🫶 ARGUMENTS 🫶

  • group — the IOMMU group that will be attached to the new domain. She's the main character getting moved 💫
  • new_domain — the new IOMMU domain to replace with. Fresh domain, who dis? 🦋
  • handle — attach handle. The little connector bestie we're handing over 🎀

🌸 DESCRIPTION 🌸

This API lets the group switch domains without being forced to go to the blocking domain in-between. Lowkey efficient, highkey iconic. It also lets the caller provide an attach handle for the new domain and use it when the domain is attached ✨

If the currently attached domain is a core domain (e.g. a default_domain), it will act just like iommu_attach_group_handle. Same behavior, different day, periodt 💅

⚠️ Caller should always provide a new handle to avoid a race with the paths that have a lockless reference to handle. Like, do not skip this, bestie — it's giving important 🚨

👑 SEE ALSO 👑

Kernel file: ./drivers/iommu/iommu.c

xoxo, this cutie page comes from ./drivers/iommu, version/date October 2026 🎀💖 slay and goodbye bestie ✨

📦 where this page comes from