linux/samples
Linus Torvalds a3ebb59eee VFIO updates for v6.19-rc1
- Move libvfio selftest artifacts in preparation of more tightly
    coupled integration with KVM selftests. (David Matlack)
 
  - Fix comment typo in mtty driver. (Chu Guangqing)
 
  - Support for new hardware revision in the hisi_acc vfio-pci variant
    driver where the migration registers can now be accessed via the PF.
    When enabled for this support, the full BAR can be exposed to the
    user. (Longfang Liu)
 
  - Fix vfio cdev support for VF token passing, using the correct size
    for the kernel structure, thereby actually allowing userspace to
    provide a non-zero UUID token.  Also set the match token callback for
    the hisi_acc, fixing VF token support for this this vfio-pci variant
    driver. (Raghavendra Rao Ananta)
 
  - Introduce internal callbacks on vfio devices to simplify and
    consolidate duplicate code for generating VFIO_DEVICE_GET_REGION_INFO
    data, removing various ioctl intercepts with a more structured
    solution. (Jason Gunthorpe)
 
  - Introduce dma-buf support for vfio-pci devices, allowing MMIO regions
    to be exposed through dma-buf objects with lifecycle managed through
    move operations.  This enables low-level interactions such as a
    vfio-pci based SPDK drivers interacting directly with dma-buf capable
    RDMA devices to enable peer-to-peer operations.  IOMMUFD is also now
    able to build upon this support to fill a long standing feature gap
    versus the legacy vfio type1 IOMMU backend with an implementation of
    P2P support for VM use cases that better manages the lifecycle of the
    P2P mapping. (Leon Romanovsky, Jason Gunthorpe, Vivek Kasireddy)
 
  - Convert eventfd triggering for error and request signals to use RCU
    mechanisms in order to avoid a 3-way lockdep reported deadlock issue.
    (Alex Williamson)
 
  - Fix a 32-bit overflow introduced via dma-buf support manifesting with
    large DMA buffers. (Alex Mastro)
 
  - Convert nvgrace-gpu vfio-pci variant driver to insert mappings on
    fault rather than at mmap time.  This conversion serves both to make
    use of huge PFNMAPs but also to both avoid corrected RAS events
    during reset by now being subject to vfio-pci-core's use of
    unmap_mapping_range(), and to enable a device readiness test after
    reset. (Ankit Agrawal)
 
  - Refactoring of vfio selftests to support multi-device tests and split
    code to provide better separation between IOMMU and device objects.
    This work also enables a new test suite addition to measure parallel
    device initialization latency. (David Matlack)
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Merge tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfio

Pull VFIO updates from Alex Williamson:

 - Move libvfio selftest artifacts in preparation of more tightly
   coupled integration with KVM selftests (David Matlack)

 - Fix comment typo in mtty driver (Chu Guangqing)

 - Support for new hardware revision in the hisi_acc vfio-pci variant
   driver where the migration registers can now be accessed via the PF.
   When enabled for this support, the full BAR can be exposed to the
   user (Longfang Liu)

 - Fix vfio cdev support for VF token passing, using the correct size
   for the kernel structure, thereby actually allowing userspace to
   provide a non-zero UUID token. Also set the match token callback for
   the hisi_acc, fixing VF token support for this this vfio-pci variant
   driver (Raghavendra Rao Ananta)

 - Introduce internal callbacks on vfio devices to simplify and
   consolidate duplicate code for generating VFIO_DEVICE_GET_REGION_INFO
   data, removing various ioctl intercepts with a more structured
   solution (Jason Gunthorpe)

 - Introduce dma-buf support for vfio-pci devices, allowing MMIO regions
   to be exposed through dma-buf objects with lifecycle managed through
   move operations. This enables low-level interactions such as a
   vfio-pci based SPDK drivers interacting directly with dma-buf capable
   RDMA devices to enable peer-to-peer operations. IOMMUFD is also now
   able to build upon this support to fill a long standing feature gap
   versus the legacy vfio type1 IOMMU backend with an implementation of
   P2P support for VM use cases that better manages the lifecycle of the
   P2P mapping (Leon Romanovsky, Jason Gunthorpe, Vivek Kasireddy)

 - Convert eventfd triggering for error and request signals to use RCU
   mechanisms in order to avoid a 3-way lockdep reported deadlock issue
   (Alex Williamson)

 - Fix a 32-bit overflow introduced via dma-buf support manifesting with
   large DMA buffers (Alex Mastro)

 - Convert nvgrace-gpu vfio-pci variant driver to insert mappings on
   fault rather than at mmap time. This conversion serves both to make
   use of huge PFNMAPs but also to both avoid corrected RAS events
   during reset by now being subject to vfio-pci-core's use of
   unmap_mapping_range(), and to enable a device readiness test after
   reset (Ankit Agrawal)

 - Refactoring of vfio selftests to support multi-device tests and split
   code to provide better separation between IOMMU and device objects.
   This work also enables a new test suite addition to measure parallel
   device initialization latency (David Matlack)

* tag 'vfio-v6.19-rc1' of https://github.com/awilliam/linux-vfio: (65 commits)
  vfio: selftests: Add vfio_pci_device_init_perf_test
  vfio: selftests: Eliminate INVALID_IOVA
  vfio: selftests: Split libvfio.h into separate header files
  vfio: selftests: Move vfio_selftests_*() helpers into libvfio.c
  vfio: selftests: Rename vfio_util.h to libvfio.h
  vfio: selftests: Stop passing device for IOMMU operations
  vfio: selftests: Move IOVA allocator into iova_allocator.c
  vfio: selftests: Move IOMMU library code into iommu.c
  vfio: selftests: Rename struct vfio_dma_region to dma_region
  vfio: selftests: Upgrade driver logging to dev_err()
  vfio: selftests: Prefix logs with device BDF where relevant
  vfio: selftests: Eliminate overly chatty logging
  vfio: selftests: Support multiple devices in the same container/iommufd
  vfio: selftests: Introduce struct iommu
  vfio: selftests: Rename struct vfio_iommu_mode to iommu_mode
  vfio: selftests: Allow passing multiple BDFs on the command line
  vfio: selftests: Split run.sh into separate scripts
  vfio: selftests: Move run.sh into scripts directory
  vfio/nvgrace-gpu: wait for the GPU mem to be ready
  vfio/nvgrace-gpu: Inform devmem unmapped after reset
  ...
2025-12-04 18:42:48 -08:00
..
acrn virt: acrn: Fix typos 2024-05-04 18:59:44 +02:00
auxdisplay
binderfs
bpf samples/bpf: Fix spelling typos in samples/bpf 2025-10-18 19:26:23 -07:00
cgroup samples/cgroup: rm unused MEMCG_EVENTS macro 2025-09-21 14:22:26 -07:00
check-exec samples/check-exec: Fix script name 2025-03-07 19:58:05 -08:00
configfs samples: configfs: add missing MODULE_DESCRIPTION() macro 2024-07-10 14:59:01 +02:00
connector treewide: Switch/rename to timer_delete[_sync]() 2025-04-05 10:30:12 +02:00
coresight coresight: syscfg: Example CoreSight configuration loadable module 2021-11-26 11:34:07 -07:00
damon samples/damon/mtier: use damon_initialized() 2025-09-21 14:22:39 -07:00
fanotify samples: fix building fs-monitor on musl systems 2025-07-28 18:14:15 +02:00
fprobe fprobe: Use ftrace_regs in fprobe exit handler 2024-12-26 10:50:03 -05:00
ftrace ftrace/samples: Fix function size computation 2025-09-05 18:39:12 -04:00
hid samples/hid: fix broken vmlinux path for VMLINUX_BTF 2025-02-04 11:07:41 +01:00
hidraw
hung_task samples: enhance hung_task detector test with read-write semaphore support 2025-07-19 19:08:26 -07:00
hw_breakpoint perf/hw_breakpoint: use ERR_PTR_PCPU(), IS_ERR_PCPU() and PTR_ERR_PCPU() macros 2024-11-05 17:12:32 -08:00
kdb kdb: Rename members of struct kdbtab_t 2021-07-27 17:05:06 +01:00
kfifo kfifo: don't include dma-mapping.h in kfifo.h 2024-10-23 08:05:20 +02:00
kmemleak samples: kmemleak: print the raw pointers for debugging purposes 2025-03-16 22:06:08 -07:00
kobject samples/kobject: make attribute_group const 2025-07-16 13:32:53 +02:00
kprobes samples: kprobes: add missing MODULE_DESCRIPTION() macros 2024-06-12 08:44:27 +09:00
landlock samples/landlock: Fix building on musl libc 2025-07-01 21:42:39 +02:00
livepatch samples/livepatch: add module descriptions 2025-04-11 17:32:38 -07:00
mei samples: mei: Fix building on musl libc 2025-07-16 14:17:47 +02:00
nitro_enclaves nitro_enclaves: Add fixes for checkpatch blank line reports 2021-09-14 11:11:20 +02:00
pfsm samples: Add userspace example for TI TPS6594 PFSM 2023-06-15 13:41:53 +02:00
pidfd
pktgen samples: pktgen: correct dev to DEV 2024-11-13 18:54:33 -08:00
qmi net: Convert proto_ops connect() callbacks to use sockaddr_unsized 2025-11-04 19:10:32 -08:00
rpmsg
rust Rust changes for v6.19 2025-12-03 14:16:49 -08:00
seccomp samples: user-trap: fix strict-aliasing warning 2024-02-12 10:42:02 -08:00
timers
trace_events tracing: Verify event formats that have "%*p.." 2025-04-02 09:51:26 -04:00
trace_printk
tsm-mr sample/tsm-mr: Fix missing static for sample_report 2025-05-12 22:15:57 -07:00
uhid
user_events tracing/user_events: Use write ABI in example 2023-03-29 06:52:09 -04:00
v4l media: v4l2-pci-skeleton: Rename second ioctl handlers argument to 'void *priv' 2025-08-13 08:33:59 +02:00
vfio-mdev vfio: Move the remaining drivers to get_region_info_caps 2025-11-12 15:06:41 -07:00
vfs samples: work around glibc redefining some of our defines wrong 2025-11-21 09:29:02 -08:00
watch_queue samples: work around glibc redefining some of our defines wrong 2025-11-21 09:29:02 -08:00
watchdog
Kconfig samples: Kconfig: fix spelling mistake "instancess" -> "instances" 2025-08-02 12:01:41 -07:00
Makefile - The 11 patch series "Add folio_mk_pte()" from Matthew Wilcox 2025-05-31 15:44:16 -07:00