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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-18 15:57:25 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2024-01-18 15:57:25 -0800 |
| commit | 244aefb1c64ad562b48929e6d85e07bc79e331d6 (patch) | |
| tree | d98bb8e0c9533278f8ee4341a9dd8752eedcbd15 /Documentation | |
| parent | 86c4d58a99ab1ccfa03860d4dead157be51eb2b6 (diff) | |
| parent | 78f70c02bdbccb5e9b0b0c728185d4aeb7044ace (diff) | |
| download | lwn-244aefb1c64ad562b48929e6d85e07bc79e331d6.tar.gz lwn-244aefb1c64ad562b48929e6d85e07bc79e331d6.zip | |
Merge tag 'vfio-v6.8-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:
- Add debugfs support, initially used for reporting device migration
state (Longfang Liu)
- Fixes and support for migration dirty tracking across multiple IOVA
regions in the pds-vfio-pci driver (Brett Creeley)
- Improved IOMMU allocation accounting visibility (Pasha Tatashin)
- Virtio infrastructure and a new virtio-vfio-pci variant driver, which
provides emulation of a legacy virtio interfaces on modern virtio
hardware for virtio-net VF devices where the PF driver exposes
support for legacy admin queues, ie. an emulated IO BAR on an SR-IOV
VF to provide driver ABI compatibility to legacy devices (Yishai
Hadas & Feng Liu)
- Migration fixes for the hisi-acc-vfio-pci variant driver (Shameer
Kolothum)
- Kconfig dependency fix for new virtio-vfio-pci variant driver (Arnd
Bergmann)
* tag 'vfio-v6.8-rc1' of https://github.com/awilliam/linux-vfio: (22 commits)
vfio/virtio: fix virtio-pci dependency
hisi_acc_vfio_pci: Update migration data pointer correctly on saving/resume
vfio/virtio: Declare virtiovf_pci_aer_reset_done() static
vfio/virtio: Introduce a vfio driver over virtio devices
vfio/pci: Expose vfio_pci_core_iowrite/read##size()
vfio/pci: Expose vfio_pci_core_setup_barmap()
virtio-pci: Introduce APIs to execute legacy IO admin commands
virtio-pci: Initialize the supported admin commands
virtio-pci: Introduce admin commands
virtio-pci: Introduce admin command sending function
virtio-pci: Introduce admin virtqueue
virtio: Define feature bit for administration virtqueue
vfio/type1: account iommu allocations
vfio/pds: Add multi-region support
vfio/pds: Move seq/ack bitmaps into region struct
vfio/pds: Pass region info to relevant functions
vfio/pds: Move and rename region specific info
vfio/pds: Only use a single SGL for both seq and ack
vfio/pds: Fix calculations in pds_vfio_dirty_sync
MAINTAINERS: Add vfio debugfs interface doc link
...
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/ABI/testing/debugfs-vfio | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/Documentation/ABI/testing/debugfs-vfio b/Documentation/ABI/testing/debugfs-vfio new file mode 100644 index 000000000000..90f7c262f591 --- /dev/null +++ b/Documentation/ABI/testing/debugfs-vfio @@ -0,0 +1,25 @@ +What: /sys/kernel/debug/vfio +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu <liulongfang@huawei.com> +Description: This debugfs file directory is used for debugging + of vfio devices, it's a common directory for all vfio devices. + Vfio core will create a device subdirectory under this + directory. + +What: /sys/kernel/debug/vfio/<device>/migration +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu <liulongfang@huawei.com> +Description: This debugfs file directory is used for debugging + of vfio devices that support live migration. + The debugfs of each vfio device that supports live migration + could be created under this directory. + +What: /sys/kernel/debug/vfio/<device>/migration/state +Date: December 2023 +KernelVersion: 6.8 +Contact: Longfang Liu <liulongfang@huawei.com> +Description: Read the live migration status of the vfio device. + The contents of the state file reflects the migration state + relative to those defined in the vfio_device_mig_state enum |