iommu/amd: Add amd_iommu=force_enable option

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Add this option to enable the IOMMU on platforms like AMD Stoney,
where the kernel usually disables it because it may cause problems in
some scenarios.

Signed-off-by: Joerg Roedel <jroedel@suse.de>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20210603130203.29016-1-joro@8bytes.org

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Joerg Roedel 2021-06-03 15:02:03 +02:00

parent 4b21a503ad

commit b1e650db2c

2 changed files with 11 additions and 1 deletions

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3

Documentation/admin-guide/kernel-parameters.txt

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9

drivers/iommu/amd/init.c

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