diff options
| author | Vasant Hegde <vasant.hegde@amd.com> | 2023-09-21 09:21:39 +0000 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2023-09-25 12:39:02 +0200 |
| commit | 4c721d6a085ca7baa4289bcf786c71684b2ef281 (patch) | |
| tree | a47c18d8e8dfff3f8f872a3f2a9a600e5c8903b1 /drivers/iommu/amd/init.c | |
| parent | 206fb06dc54a7b3df0107a96e221e7b49661059d (diff) | |
iommu/amd: Do not set amd_iommu_pgtable in pass-through mode
Since AMD IOMMU page table is not used in passthrough mode, switching to
v1 page table is not required.
Therefore, remove redundant amd_iommu_pgtable update and misleading
warning message.
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jerry Snitselaar <jsnitsel@redhat.com>
Link: https://lore.kernel.org/r/20230921092147.5930-7-vasant.hegde@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd/init.c')
| -rw-r--r-- | drivers/iommu/amd/init.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/iommu/amd/init.c b/drivers/iommu/amd/init.c index 852e40b13d20..2b01dfde6cab 100644 --- a/drivers/iommu/amd/init.c +++ b/drivers/iommu/amd/init.c @@ -2134,9 +2134,6 @@ static int __init iommu_init_pci(struct amd_iommu *iommu) !iommu_feature(iommu, FEATURE_GT)) { pr_warn("Cannot enable v2 page table for DMA-API. Fallback to v1.\n"); amd_iommu_pgtable = AMD_IOMMU_V1; - } else if (iommu_default_passthrough()) { - pr_warn("V2 page table doesn't support passthrough mode. Fallback to v1.\n"); - amd_iommu_pgtable = AMD_IOMMU_V1; } } |