[PATCH v3 0/2] Prevent RESV_DIRECT devices from user assignment

From: Lu Baolu
Date: Mon Jul 24 2023 - 02:05:59 EST


These are follow-up patches on this discussion:

https://lore.kernel.org/linux-iommu/BN9PR11MB5276E84229B5BD952D78E9598C639@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

I just summarized the ideas and code into a real patch series. Please
help to review and merge.

Change log:
v3:
- Rename "requires_direct" to "require_direct".
- Refine some comments.
- Rebase on the top of iommu next branch.

v2: https://lore.kernel.org/linux-iommu/20230713043248.41315-1-baolu.lu@xxxxxxxxxxxxxxx/
- Move "pg_size == 0" check out of the loop.
- Rebase on the top of v6.5-rc1.

v1: https://lore.kernel.org/linux-iommu/20230607035145.343698-1-baolu.lu@xxxxxxxxxxxxxxx/

Lu Baolu (2):
iommu: Prevent RESV_DIRECT devices from blocking domains
iommu/vt-d: Remove rmrr check in domain attaching device path

include/linux/iommu.h | 2 ++
drivers/iommu/intel/iommu.c | 58 -------------------------------------
drivers/iommu/iommu.c | 37 ++++++++++++++++-------
3 files changed, 29 insertions(+), 68 deletions(-)

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2.34.1