After tearing down a pasid entry, the domain id is used to invalidate the translation caches. Retrieve the domain id from the pasid entry value before clearing the pasid entry. Otherwise, we will always use domain id 0.
Cc: Ashok Raj <[email protected]> Cc: Jacob Pan <[email protected]> Signed-off-by: Liu Yi L <[email protected]> Fixes: 6f7db75e1c469 ("iommu/vt-d: Add second level page table interface") Signed-off-by: Lu Baolu <[email protected]> --- drivers/iommu/intel-pasid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/iommu/intel-pasid.c b/drivers/iommu/intel-pasid.c index 53fe5248d8f1..03b12d2ee213 100644 --- a/drivers/iommu/intel-pasid.c +++ b/drivers/iommu/intel-pasid.c @@ -466,8 +466,8 @@ void intel_pasid_tear_down_entry(struct intel_iommu *iommu, if (WARN_ON(!pte)) return; - intel_pasid_clear_entry(dev, pasid); did = pasid_get_domain_id(pte); + intel_pasid_clear_entry(dev, pasid); if (!ecap_coherent(iommu->ecap)) clflush_cache_range(pte, sizeof(*pte)); -- 2.17.1
