CONFIG_INTEL_IOMMU_FLOPPY_WA:

General informations

The Linux kernel configuration item CONFIG_INTEL_IOMMU_FLOPPY_WA has multiple definitions:

found in drivers/iommu/intel/Kconfig

The configuration item CONFIG_INTEL_IOMMU_FLOPPY_WA:

• prompt:
• type: bool
• depends on: CONFIG_X86
• defined in drivers/iommu/intel/Kconfig
• found in Linux kernels: 5.9–5.19, 6.0–6.12, 6.13-rc+HEAD

Help text

Floppy disk drivers are known to bypass DMA API calls thereby failing to work when IOMMU is enabled. This workaround will setup a 1:1 mapping for the first 16MiB to make floppy (an ISA device) work.

found in drivers/iommu/Kconfig

The configuration item CONFIG_INTEL_IOMMU_FLOPPY_WA:

• prompt:
• type: bool
• depends on: CONFIG_INTEL_IOMMU && CONFIG_X86
• defined in drivers/iommu/Kconfig
• found in Linux kernels: 3.2–3.19, 4.0–4.20, 5.0–5.8

Help text

Floppy disk drivers are known to bypass DMA API calls thereby failing to work when IOMMU is enabled. This workaround will setup a 1:1 mapping for the first 16MiB to make floppy (an ISA device) work.

Hardware

LKDDb

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Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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