iommu/amd: Add amd_iommu=force_enable option
authorJoerg Roedel <jroedel@suse.de>
Thu, 3 Jun 2021 13:02:03 +0000 (15:02 +0200)
committerJoerg Roedel <jroedel@suse.de>
Fri, 4 Jun 2021 14:31:13 +0000 (16:31 +0200)
commitb1e650db2cc4acca6e7c9974f6a2ca232261173a
tree1d41308b3e526c1bd0cc188f49104545211a1914
parent4b21a503adf597773e4b37db05db0e9b16a81d53
iommu/amd: Add amd_iommu=force_enable option

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
Documentation/admin-guide/kernel-parameters.txt
drivers/iommu/amd/init.c