[PATCH v2 00/19] driver core: Authorize device trust before driver binding

[Leon Romanovsky]

Device trust policies need to precede driver setup, including manual
attachment, so userspace can authorize devices before they operate.

Introduce disabled, adversary and full policies with boot-time selection,
sysfs authorization and lifetime commitment. Apply them to PCI and USB.
Keep serio and generic PHY attachment under their existing subsystem
locks through an API restricted to device_trust.default=full. Freeze
runtime policy changes in that mode and require per-device boot entries
to exclude driver rules from manual attachment.

Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxx>
---
Changes in v2:
- Replace the serio and PHY attachment conversions with
  device_driver_attach_full(), restricted to device_trust.default=full.
- Add USB authorization on top of device trust: export
  device_trust_set_policy() and convert the USB authorized attributes.
- Documentation and commit messages fixes
- Small USB patches rewrote and split
- Link to v1: https://patch.msgid.link/20261105-device-trust-core-v1-0-1e536825b4eb@xxxxxxxxxx

---
Leon Romanovsky (19):
      Input: gameport - attach manual drivers through the driver core
      wifi: mac80211_hwsim: lock device for manual driver binding
      USB: Lock registered interfaces during manual driver binding
      USB: Release interface claims refused during registration
      PNP: Attach card devices through the driver core
      cdx: Propagate DMA configuration errors
      driver core: Report deferred probes through sysfs drivers_probe
      driver core: Add a compatibility API for manual driver attachment
      Input: serio - use the compatibility driver attachment API
      net: phy: Use the compatibility driver attachment API
      driver core: Introduce a generic device trust level
      driver core: Expose device trust authorization interfaces
      driver core: Accept device trust policy on the kernel command line
      driver core: Accept device trust policy by driver name
      driver core: Expose committed device trust level
      driver core: Cover trust authorization and binding with KUnit
      driver core: Document trust admission and initrd authorization
      PCI: Replace untrusted state with device trust
      USB: Authorize devices and interfaces through device trust

 Documentation/ABI/testing/sysfs-bus-drivers-probe  |   13 +
 Documentation/ABI/testing/sysfs-bus-usb            |   11 +
 Documentation/ABI/testing/sysfs-devices-trust      |   33 +
 Documentation/admin-guide/kernel-parameters.txt    |   29 +
 .../driver-api/driver-model/device-trust.rst       |  289 ++++
 Documentation/driver-api/driver-model/index.rst    |    1 +
 Documentation/usb/authorization.rst                |   20 +
 MAINTAINERS                                        |    2 +
 drivers/base/Makefile                              |    2 +-
 drivers/base/base.h                                |   31 +
 drivers/base/bus.c                                 |    9 +-
 drivers/base/core.c                                |   18 +-
 drivers/base/dd.c                                  |  108 +-
 drivers/base/test/Makefile                         |    1 +
 drivers/base/test/device-trust-test.c              | 1720 ++++++++++++++++++++
 drivers/base/trust.c                               |  406 +++++
 drivers/bluetooth/btusb_main.c                     |   42 +-
 drivers/cdx/cdx.c                                  |    2 +-
 drivers/input/gameport/gameport.c                  |   21 +-
 drivers/input/serio/serio.c                        |   24 +-
 drivers/iommu/amd/iommu.c                          |    3 +-
 drivers/iommu/dma-iommu.c                          |   14 +-
 drivers/iommu/intel/iommu.c                        |   17 +-
 drivers/iommu/iommu.c                              |   17 +-
 drivers/net/phy/phy_device.c                       |   29 +-
 drivers/net/wireless/virtual/mac80211_hwsim_main.c |    2 +
 drivers/pci/ats.c                                  |    4 +-
 drivers/pci/pci.c                                  |    5 +-
 drivers/pci/probe.c                                |   23 +-
 drivers/pci/quirks.c                               |    7 +-
 drivers/pnp/card.c                                 |   12 +-
 drivers/usb/core/driver.c                          |   29 +-
 drivers/usb/core/generic.c                         |    2 +-
 drivers/usb/core/hub.c                             |   17 +-
 drivers/usb/core/message.c                         |   34 +-
 drivers/usb/core/sysfs.c                           |    9 +-
 drivers/usb/core/trace.h                           |    2 +-
 drivers/usb/core/usb.c                             |    5 +-
 drivers/usb/core/usb.h                             |    4 +-
 include/linux/device.h                             |   20 +
 include/linux/device/bus.h                         |   10 +
 include/linux/device/trust.h                       |   47 +
 include/linux/pci.h                                |   30 +-
 include/linux/usb.h                                |   29 +-
 44 files changed, 2988 insertions(+), 165 deletions(-)
---
base-commit: 6628e7d4c6b25c8d18f1345e3a20d21829aae7e4
change-id: 20260915-device-trust-core-12934e618489

Best regards,
--  
Leon Romanovsky <leonro@xxxxxxxxxx>