Commit 9a16ab9d authored by Lu Baolu's avatar Lu Baolu Committed by Joerg Roedel
Browse files

iommu/vt-d: Make context clearing consistent with context mapping 



In the iommu probe_device path, domain_context_mapping() allows setting
up the context entry for a non-PCI device. However, in the iommu
release_device path, domain_context_clear() only clears context entries
for PCI devices.

Make domain_context_clear() behave consistently with
domain_context_mapping() by clearing context entries for both PCI and
non-PCI devices.

Fixes: 579305f7 ("iommu/vt-d: Update to use PCI DMA aliases")
Signed-off-by: default avatarLu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: default avatarKevin Tian <kevin.tian@intel.com>
Link: https://lore.kernel.org/r/20231114011036.70142-4-baolu.lu@linux.intel.com


Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent da37dddc

drivers/iommu/intel/iommu.c

+2 −2
Original line number Diff line number Diff line
@@ -3928,8 +3928,8 @@ static int domain_context_clear_one_cb(struct pci_dev *pdev, u16 alias, void *op 
 */

static void domain_context_clear(struct device_domain_info *info)

{

	if (!info->iommu || !info->dev || !dev_is_pci(info->dev))

		return;

	if (!dev_is_pci(info->dev))

		domain_context_clear_one(info, info->bus, info->devfn);



	pci_for_each_dma_alias(to_pci_dev(info->dev),

			       &domain_context_clear_one_cb, info);