The parameter is still there but it's ignored. We need to check its
value before deciding to go into passthrough mode for AMD IOMMU.
Fixes: aafd8ba0ca74 ("iommu/amd: Implement add_device and remove_device")
Signed-off-by: Yu Zhao <yuz...@google.com>
---
drivers/iommu/amd_iommu.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 1167ff0416cf..3e4219e6cff0 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -2195,7 +2195,8 @@ static int amd_iommu_add_device(struct device *dev)
BUG_ON(!dev_data);
- if (iommu_pass_through || dev_data->iommu_v2)
+ if (iommu_pass_through ||
+ (!amd_iommu_force_isolation && dev_data->iommu_v2))
iommu_request_dm_for_dev(dev);
/* Domains are initialized for this device - have a look what we ended
up with */
--
2.20.0.rc1.387.gf8505762e3-goog
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