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[v2,0/3] Support attaching PASID to the blocked_domain

Message ID 20241018055824.24880-1-yi.l.liu@intel.com (mailing list archive)
Headers show
Series Support attaching PASID to the blocked_domain | expand

Message

Yi Liu Oct. 18, 2024, 5:58 a.m. UTC 
During the review of iommufd pasid series, Kevin and Jason suggested
attaching PASID to the blocked domain hence replacing the usage of
remove_dev_pasid() op [1]. This makes sense as it makes the PASID path
aligned with the RID path which attaches the RID to the blocked_domain
when it is to be blocked. To do it, it requires passing the old domain
to the iommu driver. This has been done in [2].

This series makes the Intel iommu driver and ARM SMMUv3 driver support
attaching PASID to the blocked domain. While the AMD iommu driver does
not have the blocked domain yet, so still uses the remove_dev_pasid() op.

[1] https://lore.kernel.org/linux-iommu/20240816130202.GB2032816@nvidia.com/
[2] https://lore.kernel.org/linux-iommu/20241018055402.23277-2-yi.l.liu@intel.com/

v2:
 - Add Kevin's r-b
 - Adjust the order of patch 03 of v1, it should be the first patch (Baolu)

v1: https://lore.kernel.org/linux-iommu/20240912130653.11028-1-yi.l.liu@intel.com/

Regards,
	Yi Liu

Jason Gunthorpe (1):
  iommu/arm-smmu-v3: Make the blocked domain support PASID

Yi Liu (2):
  iommu: Add a wrapper for remove_dev_pasid
  iommu/vt-d: Make the blocked domain support PASID

 drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 12 ++++-----
 drivers/iommu/intel/iommu.c                 | 19 ++++++++-----
 drivers/iommu/intel/pasid.c                 |  3 ++-
 drivers/iommu/iommu.c                       | 30 ++++++++++++++++-----
 4 files changed, 45 insertions(+), 19 deletions(-)