diff options
| author |   Megha Dey <megha.dey@linux.intel.com> | 2020-03-14 11:39:59 +0800 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2020-03-14 20:02:43 +0100 |
| commit | 1da8347d8505c137fb07ff06bbcd3f2bf37409bc (patch) | |
| tree | 7fd6b719c8cbe115ecc6fa2403cb0b23cfd77b01 /drivers/iommu/intel-iommu.c | |
| parent | iommu/amd: Fix IOMMU AVIC not properly update the is_run bit in IRTE (diff) | |
| download | linux-dev-1da8347d8505c137fb07ff06bbcd3f2bf37409bc.tar.xz linux-dev-1da8347d8505c137fb07ff06bbcd3f2bf37409bc.zip | |
iommu/vt-d: Populate debugfs if IOMMUs are detected
Currently, the intel iommu debugfs directory(/sys/kernel/debug/iommu/intel)
gets populated only when DMA remapping is enabled (dmar_disabled = 0)
irrespective of whether interrupt remapping is enabled or not.
Instead, populate the intel iommu debugfs directory if any IOMMUs are
detected.
Cc: Dan Carpenter <dan.carpenter@oracle.com>
Fixes: ee2636b8670b1 ("iommu/vt-d: Enable base Intel IOMMU debugfs support")
Signed-off-by: Megha Dey <megha.dey@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to '')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 2943d3600b7c..4be549478691 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5133,6 +5133,9 @@ int __init intel_iommu_init(void) down_write(&dmar_global_lock); + if (!no_iommu) + intel_iommu_debugfs_init(); + if (no_iommu || dmar_disabled) { /* * We exit the function here to ensure IOMMU's remapping and @@ -5228,7 +5231,6 @@ int __init intel_iommu_init(void) pr_info("Intel(R) Virtualization Technology for Directed I/O\n"); intel_iommu_enabled = 1; - intel_iommu_debugfs_init(); return 0; |