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

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Message-Id: <20230724060352.113458-1-baolu.lu@linux.intel.com>
Date:   Mon, 24 Jul 2023 14:03:50 +0800
From:   Lu Baolu <baolu.lu@...ux.intel.com>
To:     Jason Gunthorpe <jgg@...pe.ca>, Kevin Tian <kevin.tian@...el.com>,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Alex Williamson <alex.williamson@...hat.com>,
        Nicolin Chen <nicolinc@...dia.com>
Cc:     iommu@...ts.linux.dev, kvm@...r.kernel.org,
        linux-kernel@...r.kernel.org, Lu Baolu <baolu.lu@...ux.intel.com>
Subject: [PATCH v3 0/2] Prevent RESV_DIRECT devices from user assignment

These are follow-up patches on this discussion:

https://lore.kernel.org/linux-iommu/BN9PR11MB5276E84229B5BD952D78E9598C639@BN9PR11MB5276.namprd11.prod.outlook.com

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@linux.intel.com/
 - 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@linux.intel.com/

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(-)

-- 
2.34.1