iommu_group_id(9)

okay so bestie, welcome to iommu_group_id(9) — this is the Kernel API Manual page, and it’s giving “one job, done cute” energy. 💅✨

🌸 NAME 🌸

iommu_group_id — Return ID for a group. That’s the whole name, and it ate. 👑

✨ SYNOPSIS ✨

int iommu_group_id (struct iommu_group *group );

🎀 ARGUMENTS 🎀

• group — the group to ID. That’s the whole argument, bestie, no cap. 🫶

💖 DESCRIPTION 💖

So this function returns the unique ID for the group — and that ID matches the sysfs group number. That’s literally the whole description. slay. 🌈✨

🦋 SEE ALSO 🦋

Kernel file: ./drivers/iommu/iommu.c — that’s where this cutie lives. 🧚

Also peep the whole squad:

• iommu_device_register(9)
• iommu_insert_resv_region(9)
• iommu_group_alloc(9)
• iommu_group_get_iommudata(9)
• iommu_group_set_iommudata(9)
• iommu_group_set_name(9)
• iommu_group_add_device(9)
• iommu_group_remove_device(9)
• iommu_group_mutex_assert(9)
• iommu_group_for_each_dev(9)
• iommu_group_get(9)
• iommu_group_ref_get(9)
• iommu_group_put(9)
• device_iommu_capable(9)
• iommu_group_has_isolated_msi(9)
• iommu_set_fault_handler(9)
• iommu_paging_domain_alloc_flags(9)
• iommu_attach_device(9)
• iommu_get_domain_for_dev(9)
• iommu_driver_get_domain_for_dev(9)
• iommu_attach_group(9)
• iommu_unmap(9)
• iommu_unmap_fast(9)
• report_iommu_fault(9)
• iommu_get_resv_regions(9)
• iommu_put_resv_regions(9)
• iommu_setup_default_domain(9)
• iommu_device_use_default_domain(9)
• iommu_device_unuse_default_domain(9)
• iommu_group_claim_dma_owner(9)
• iommu_device_claim_dma_owner(9)
• iommu_group_release_dma_owner(9)
• iommu_device_release_dma_owner(9)
• iommu_group_dma_owner_claimed(9)
• iommu_replace_device_pasid(9)
• iommu_attach_handle_get(9)
• iommu_attach_group_handle(9)
• iommu_detach_group_handle(9)
• iommu_replace_group_handle(9)
• pci_dev_reset_iommu_prepare(9)
• pci_dev_reset_iommu_done(9)
• iommu_dma_prepare_msi(9)

mwah 💋 — brought to you by source/version ./drivers/iommu, dated October 2026, and starring iommu_group_id(9). bye bestie! 🎀✨