iommu_drive...main_for_dev(9)

💖 NAME 💖

okay so bestie, welcome to the Kernel API Manual page for iommu_driver_get_domain_for_dev — she returns the driver-level domain pointer, and yes, that's the whole mood. ✨

✨ SYNOPSIS ✨

struct iommu_domain * iommu_driver_get_domain_for_dev (struct device
       *dev );

🎀 ARGUMENTS 🎀

• dev — the device you're querying, bestie. That's the thing you're asking about. 🫶

🦋 DESCRIPTION 🦋

okay so picture this: you're an iommu driver, and you're inside an iommu callback function where group->mutex is held. If you want to get the physical domain in that exact situation, you can call this function. no cap, that's what she's for. 💅

🌈 SEE ALSO 🌈

Kernel file ./drivers/iommu/iommu.c, plus the whole friend group:

• 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)
• iommu_group_id(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_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)

ok bye bestie — this one lives in ./drivers/iommu, dated October 2026, and it's serving Kernel API Manual energy to the very end. 💅🎀✨