From 84c11e4df5aa4955acaa441f0cf1cb2e50daf64b Mon Sep 17 00:00:00 2001 From: Lu Baolu Date: Wed, 20 Mar 2019 09:58:34 +0800 Subject: iommu/vt-d: Save the right domain ID used by hardware The driver sets a default domain id (FLPT_DEFAULT_DID) in the first level only pasid entry, but saves a different domain id in @sdev->did. The value saved in @sdev->did will be used to invalidate the translation caches. Hence, the driver might result in invalidating the caches with a wrong domain id. Cc: Ashok Raj Cc: Jacob Pan Fixes: 1c4f88b7f1f92 ("iommu/vt-d: Shared virtual address in scalable mode") Signed-off-by: Liu Yi L Signed-off-by: Lu Baolu Signed-off-by: Joerg Roedel --- drivers/iommu/intel-iommu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers') diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index f002d47d2f27..28cb713d728c 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -5335,7 +5335,7 @@ int intel_iommu_enable_pasid(struct intel_iommu *iommu, struct intel_svm_dev *sd ctx_lo = context[0].lo; - sdev->did = domain->iommu_did[iommu->seq_id]; + sdev->did = FLPT_DEFAULT_DID; sdev->sid = PCI_DEVID(info->bus, info->devfn); if (!(ctx_lo & CONTEXT_PASIDE)) { -- cgit