diff options
| author | Lu Baolu <baolu.lu@linux.intel.com> | 2022-07-12 08:08:58 +0800 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2022-07-15 10:21:37 +0200 |
| commit | 8430fd3f3287013cb3f04b465c0686c41c86a8c8 (patch) | |
| tree | d007cc8d73ad3b142d6249d7b6ef0843d9977655 /drivers/iommu/intel/svm.c | |
| parent | 2c3262f9e881ae403b6d92a7e4824531cdb63829 (diff) | |
iommu/vt-d: Acquiring lock in pasid manipulation helpers
The iommu->lock is used to protect the per-IOMMU pasid directory table
and pasid table. Move the spinlock acquisition/release into the helpers
to make the code self-contained.
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20220706025524.2904370-8-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/intel/svm.c')
| -rw-r--r-- | drivers/iommu/intel/svm.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index 82288a50660d..64072e628bbd 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -394,11 +394,8 @@ static struct iommu_sva *intel_svm_bind_mm(struct intel_iommu *iommu, sflags = (flags & SVM_FLAG_SUPERVISOR_MODE) ? PASID_FLAG_SUPERVISOR_MODE : 0; sflags |= cpu_feature_enabled(X86_FEATURE_LA57) ? PASID_FLAG_FL5LP : 0; - spin_lock(&iommu->lock); ret = intel_pasid_setup_first_level(iommu, dev, mm->pgd, mm->pasid, FLPT_DEFAULT_DID, sflags); - spin_unlock(&iommu->lock); - if (ret) goto free_sdev; |