linux/drivers/vfio
Linus Torvalds 4138f02288 VFIO updates for v6.9-rc1
- Add warning in unlikely case that device is not captured with
    driver_override. (Kunwu Chan)
 
  - Error handling improvements in mlx5-vfio-pci to detect firmware
    tracking object error states, logging of firmware error syndrom,
    and releasing of firmware resources in aborted migration sequence.
    (Yishai Hadas)
 
  - Correct an un-alphabetized VFIO MAINTAINERS entry.
    (Alex Williamson)
 
  - Make the mdev_bus_type const and also make the class struct const
    for a couple of the vfio-mdev sample drivers. (Ricardo B. Marliere)
 
  - Addition of a new vfio-pci variant driver for the GPU of NVIDIA's
    Grace-Hopper superchip.  During initialization of the chip-to-chip
    interconnect in this hardware module, the PCI BARs of the device
    become unused in favor of a faster, coherent mechanism for exposing
    device memory.  This driver primarily changes the VFIO
    representation of the device to masquerade this coherent aperture
    to replace the physical PCI BARs for userspace drivers.  This also
    incorporates use of a new vma flag allowing KVM to use write
    combining attributes for uncached device memory.  (Ankit Agrawal)
 
  - Reset fixes and cleanups for the pds-vfio-pci driver.  Save and
    restore files were previously leaked if the device didn't pass
    through an error state, this is resolved and later re-fixed to
    prevent access to the now freed files.  Reset handling is also
    refactored to remove the complicated deferred reset mechanism.
    (Brett Creeley)
 
  - Remove some references to pl330 in the vfio-platform amba
    driver. (Geert Uytterhoeven)
 
  - Remove twice redundant and ugly code to unpin incidental pins
    of the zero-page. (Alex Williamson)
 
  - Deferred reset logic is also removed from the hisi-acc-vfio-pci
    driver as a simplification. (Shameer Kolothum)
 
  - Enforce that mlx5-vfio-pci devices must support PRE_COPY and
    remove resulting unnecessary code.  There is no device firmware
    that has been available publicly without this support.
    (Yishai Hadas)
 
  - Switch over to using the .remove_new callback for vfio-platform
    in support of the broader transition for a void remove function.
    (Uwe Kleine-König)
 
  - Resolve multiple issues in interrupt code for VFIO bus drivers
    that allow calling eventfd_signal() on a NULL context.  This
    also remove a potential race in INTx setup on certain hardware
    for vfio-pci, races with various mechanisms to mask INTx, and
    leaked virqfds in vfio-platform. (Alex Williamson)
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Merge tag 'vfio-v6.9-rc1' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Add warning in unlikely case that device is not captured with
   driver_override (Kunwu Chan)

 - Error handling improvements in mlx5-vfio-pci to detect firmware
   tracking object error states, logging of firmware error syndrom, and
   releasing of firmware resources in aborted migration sequence (Yishai
   Hadas)

 - Correct an un-alphabetized VFIO MAINTAINERS entry (Alex Williamson)

 - Make the mdev_bus_type const and also make the class struct const for
   a couple of the vfio-mdev sample drivers (Ricardo B. Marliere)

 - Addition of a new vfio-pci variant driver for the GPU of NVIDIA's
   Grace-Hopper superchip. During initialization of the chip-to-chip
   interconnect in this hardware module, the PCI BARs of the device
   become unused in favor of a faster, coherent mechanism for exposing
   device memory. This driver primarily changes the VFIO representation
   of the device to masquerade this coherent aperture to replace the
   physical PCI BARs for userspace drivers. This also incorporates use
   of a new vma flag allowing KVM to use write combining attributes for
   uncached device memory (Ankit Agrawal)

 - Reset fixes and cleanups for the pds-vfio-pci driver. Save and
   restore files were previously leaked if the device didn't pass
   through an error state, this is resolved and later re-fixed to
   prevent access to the now freed files. Reset handling is also
   refactored to remove the complicated deferred reset mechanism (Brett
   Creeley)

 - Remove some references to pl330 in the vfio-platform amba driver
   (Geert Uytterhoeven)

 - Remove twice redundant and ugly code to unpin incidental pins of the
   zero-page (Alex Williamson)

 - Deferred reset logic is also removed from the hisi-acc-vfio-pci
   driver as a simplification (Shameer Kolothum)

 - Enforce that mlx5-vfio-pci devices must support PRE_COPY and remove
   resulting unnecessary code. There is no device firmware that has been
   available publicly without this support (Yishai Hadas)

 - Switch over to using the .remove_new callback for vfio-platform in
   support of the broader transition for a void remove function (Uwe
   Kleine-König)

 - Resolve multiple issues in interrupt code for VFIO bus drivers that
   allow calling eventfd_signal() on a NULL context. This also remove a
   potential race in INTx setup on certain hardware for vfio-pci, races
   with various mechanisms to mask INTx, and leaked virqfds in
   vfio-platform (Alex Williamson)

* tag 'vfio-v6.9-rc1' of https://github.com/awilliam/linux-vfio: (29 commits)
  vfio/fsl-mc: Block calling interrupt handler without trigger
  vfio/platform: Create persistent IRQ handlers
  vfio/platform: Disable virqfds on cleanup
  vfio/pci: Create persistent INTx handler
  vfio: Introduce interface to flush virqfd inject workqueue
  vfio/pci: Lock external INTx masking ops
  vfio/pci: Disable auto-enable of exclusive INTx IRQ
  vfio/pds: Refactor/simplify reset logic
  vfio/pds: Make sure migration file isn't accessed after reset
  vfio/platform: Convert to platform remove callback returning void
  vfio/mlx5: Enforce PRE_COPY support
  vfio/mbochs: make mbochs_class constant
  vfio/mdpy: make mdpy_class constant
  hisi_acc_vfio_pci: Remove the deferred_reset logic
  Revert "vfio/type1: Unpin zero pages"
  vfio/nvgrace-gpu: Convey kvm to map device memory region as noncached
  vfio: amba: Rename pl330_ids[] to vfio_amba_ids[]
  vfio/pds: Always clear the save/restore FDs on reset
  vfio/nvgrace-gpu: Add vfio pci variant module for grace hopper
  vfio/pci: rename and export range_intersect_range
  ...
2024-03-15 13:21:13 -07:00
..
cdx Char/Misc and other driver changes for 6.7-rc1 2023-11-03 14:51:08 -10:00
fsl-mc vfio/fsl-mc: Block calling interrupt handler without trigger 2024-03-11 13:08:52 -06:00
mdev vfio: mdev: make mdev_bus_type const 2024-02-22 12:19:33 -07:00
pci vfio/pci: Create persistent INTx handler 2024-03-11 13:08:52 -06:00
platform vfio/platform: Create persistent IRQ handlers 2024-03-11 13:08:52 -06:00
container.c VFIO updates for v6.3-rc1 2023-02-25 11:52:57 -08:00
debugfs.c vfio/migration: Add debugfs to live migration driver 2023-12-04 14:29:08 -07:00
device_cdev.c vfio: Add VFIO_DEVICE_[AT|DE]TACH_IOMMUFD_PT 2023-07-25 10:20:37 -06:00
group.c vfio: Move the IOMMU_CAP_CACHE_COHERENCY check in __vfio_register_dev() 2023-07-25 10:20:41 -06:00
iommufd.c vfio: Support IO page table replacement 2023-07-28 13:31:24 -03:00
Kconfig vfio/migration: Add debugfs to live migration driver 2023-12-04 14:29:08 -07:00
Makefile vfio/migration: Add debugfs to live migration driver 2023-12-04 14:29:08 -07:00
vfio_iommu_spapr_tce.c powerpc/iommu: Add iommu_ops to report capabilities and allow blocking domains 2023-03-15 00:51:46 +11:00
vfio_iommu_type1.c Revert "vfio/type1: Unpin zero pages" 2024-03-04 16:11:07 -07:00
vfio_main.c vfio: replace CONFIG_HAVE_KVM with IS_ENABLED(CONFIG_KVM) 2024-02-08 08:45:35 -05:00
vfio.h vfio: replace CONFIG_HAVE_KVM with IS_ENABLED(CONFIG_KVM) 2024-02-08 08:45:35 -05:00
virqfd.c vfio: Introduce interface to flush virqfd inject workqueue 2024-03-11 13:08:52 -06:00