Merge tag 'vfio-v7.2-rc2' of https://github.com/awilliam/linux-vfio

Pull VFIO fixes from Alex Williamson:
 "Mostly straightforward fixes here, inconsistent runtime PM handling
  due to global device policies, bitfield races, unwind path gaps,
  teardown ordering, and a misplaced library flag.

   - Fix racy bitfield updates in vfio-pci-core and the mlx5 vfio-pci
     variant driver with a binary split between setup/release and
     runtime modified flags. These were noted across several Sashiko
     reviews as pre-existing issues (Alex Williamson)

   - Fix runtime PM inconsistency where the vfio-pci driver module_init
     could modify the idle PM policy of existing devices through globals
     managed in vfio-pci-core, leading to unbalanced runtime PM
     operations (Alex Williamson)

   - Restore mutability of writable vfio-pci module options by further
     pulling policy globals out of vfio-pci-core, to instead be latched
     per device at device init. Provide visibility of the per device
     latched values through debugfs (Alex Williamson)

   - Fix missing VGA arbiter uninit callback in unwind path (Alex
     Williamson)

   - Reorder device debugfs removal before device_del() to avoid gap
     where debugfs is available with stale devres pointers (Alex
     Williamson)

   - Move UUID library linking flag from vfio selftest Makefile into
     libvfio.mk to avoid exposing such dependencies when linking with
     KVM selftests (Sean Christopherson)"

* tag 'vfio-v7.2-rc2' of https://github.com/awilliam/linux-vfio:
  vfio: selftests: Add luuid to libvfio.mk's list of libraries, not to the Makefile
  vfio/pci: Expose latched module parameter policy in debugfs
  vfio: Remove device debugfs before releasing devres
  vfio/pci: Latch all module parameters per device
  vfio/mlx5: Fix racy bitfields and tighten struct layout
  vfio/pci: Fix racy bitfields and tighten struct layout
  vfio/pci: Release the VGA arbiter client on register_device() failure
  vfio/pci: Latch disable_idle_d3 per device

1 files changed, 26 insertions, 0 deletions

diff --git a/Documentation/ABI/testing/debugfs-vfio b/Documentation/ABI/testing/debugfs-vfio
index 70ec2d454686..ed2f29c3a9b4 100644
--- a/Documentation/ABI/testing/debugfs-vfio
+++ b/Documentation/ABI/testing/debugfs-vfio
@@ -29,3 +29,29 @@ Date:		Oct 2025
 KernelVersion:	6.18
 Contact:	Cédric Le Goater <clg@redhat.com>
 Description:	Read the migration features of the vfio device.
+
+What:		/sys/kernel/debug/vfio/<device>/pci
+Date:		June 2026
+KernelVersion:	7.2
+Contact:	Alex Williamson <alex.williamson@nvidia.com>
+Description:	This debugfs file directory is used for debugging
+		VFIO PCI devices.
+
+What:		/sys/kernel/debug/vfio/<device>/pci/nointxmask
+Date:		June 2026
+KernelVersion:	7.2
+Contact:	Alex Williamson <alex.williamson@nvidia.com>
+Description:	Read the nointxmask policy latched for this device.  This
+		policy governs whether the device may use PCI 2.3 style
+		INTx masking when supported, reporting a value of "N", or
+		requires APIC level INTx masking, reporting a value of "Y".
+
+What:		/sys/kernel/debug/vfio/<device>/pci/disable_idle_d3
+Date:		June 2026
+KernelVersion:	7.2
+Contact:	Alex Williamson <alex.williamson@nvidia.com>
+Description:	Read the disable_idle_d3 policy latched for this device.  This
+		policy governs whether the device PM runtime usage count is
+		kept elevated while the device is bound to the driver and
+		unused, reporting a value of "Y", or decremented to allow the
+		device to enter a low power state, reporting a value of "N".