diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index 489bab4999fb..6d81644c66bc 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -1251,7 +1251,7 @@ static void domain_context_clear_one(struct device_domain_info *info, u8 bus, u8 context_clear_present(context); __iommu_flush_cache(iommu, context, sizeof(*context)); spin_unlock(&iommu->lock); - intel_context_flush_no_pasid(info, context, did); + intel_context_flush_no_pasid(info, context, did, PCI_DEVID(bus, devfn)); context_clear_entry(context); __iommu_flush_cache(iommu, context, sizeof(*context)); } diff --git a/drivers/iommu/intel/iommu.h b/drivers/iommu/intel/iommu.h index c00f44db0020..23dbe6c24439 100644 --- a/drivers/iommu/intel/iommu.h +++ b/drivers/iommu/intel/iommu.h @@ -1241,7 +1241,7 @@ void cache_tag_flush_range_np(struct dmar_domain *domain, unsigned long start, unsigned long end); void intel_context_flush_no_pasid(struct device_domain_info *info, - struct context_entry *context, u16 did); + struct context_entry *context, u16 did, u16 sid); int intel_iommu_enable_prq(struct intel_iommu *iommu); int intel_iommu_finish_prq(struct intel_iommu *iommu); diff --git a/drivers/iommu/intel/pasid.c b/drivers/iommu/intel/pasid.c index 81353fd46b37..e4f24d3f19a6 100644 --- a/drivers/iommu/intel/pasid.c +++ b/drivers/iommu/intel/pasid.c @@ -751,7 +751,7 @@ static void device_pasid_table_teardown(struct device *dev, u8 bus, u8 devfn) context_clear_present(context); __iommu_flush_cache(iommu, context, sizeof(*context)); spin_unlock(&iommu->lock); - intel_context_flush_no_pasid(info, context, did); + intel_context_flush_no_pasid(info, context, did, PCI_DEVID(bus, devfn)); context_clear_entry(context); __iommu_flush_cache(iommu, context, sizeof(*context)); } @@ -955,9 +955,12 @@ static void __context_flush_dev_iotlb(struct device_domain_info *info) * This helper can only be used when IOMMU is working in the legacy mode or * IOMMU is in scalable mode but all PASID table entries of the device are * non-present. + * + * @sid identifies the context entry that was modified, which may be a DMA + * alias of @info->dev rather than its own requester ID. */ void intel_context_flush_no_pasid(struct device_domain_info *info, - struct context_entry *context, u16 did) + struct context_entry *context, u16 did, u16 sid) { struct intel_iommu *iommu = info->iommu; @@ -967,7 +970,7 @@ void intel_context_flush_no_pasid(struct device_domain_info *info, * when operating in scalable mode. Therefore the @did value doesn't * matter in scalable mode. */ - iommu->flush.flush_context(iommu, did, PCI_DEVID(info->bus, info->devfn), + iommu->flush.flush_context(iommu, did, sid, DMA_CCMD_MASK_NOBIT, DMA_CCMD_DEVICE_INVL); /*