[linux-nvidia-6.17-next] CXL VFIO: Add CXL Type-2 device passthrough support#407

Open

JiandiAnNVIDIA wants to merge 51 commits into

NVIDIA:24.04_linux-nvidia-6.17-nextfrom

JiandiAnNVIDIA:cxl-vfio_2026-04-23

Commits on May 5, 2026

crypto: hisilicon - qm updates BAR configuration

Longfang Liu
authored and
JiandiAnNVIDIA
committed
hisi_acc_vfio_pci: adapt to new migration configuration

Longfang Liu
authored and
JiandiAnNVIDIA
committed

Commits on May 6, 2026

vfio/nvgrace-gpu: fix grammatical error

Morduan Zang
authored and
JiandiAnNVIDIA
committed
vfio: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/hisi: Convert to the get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/virtio: Convert to the get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/nvgrace: Convert to the get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/pci: Fill in the missing get_region_info ops

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/mtty: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/mdpy: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/mbochs: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/platform: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/fsl: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/cdx: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/ccw: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/gvt: Provide a get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio: Require drivers to implement get_region_info

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio: Add get_region_info_caps op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/mbochs: Convert mbochs to use vfio_info_add_capability()

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/gvt: Convert to get_region_info_caps

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/ccw: Convert to get_region_info_caps

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/pci: Convert all PCI drivers to get_region_info_caps

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio/platform: Convert to get_region_info_caps

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio: Move the remaining drivers to get_region_info_caps

jgunthorpe
authored and
JiandiAnNVIDIA
committed
vfio: Remove the get_region_info op

jgunthorpe
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: cxl: Add cxl_get_hdm_info() for HDM decoder metadata

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: cxl: Declare cxl_find_regblock and cxl_probe_component_regs in public header

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: cxl: Move component/HDM register defines to uapi/cxl/cxl_regs.h

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: cxl: Split cxl_await_range_active() from media-ready wait

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: cxl: Record BIR and BAR offset in cxl_register_map

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio: UAPI for CXL-capable PCI device assignment

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/pci: Add CXL state to vfio_pci_core_device

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/pci: Add CONFIG_VFIO_CXL_CORE and stub CXL hooks

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Detect CXL DVSEC and probe HDM block

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/pci: Export config access helpers

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Introduce HDM decoder register emulation framework

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Wait for HDM ranges and create memdev

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: CXL region management support

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: DPA VFIO region with demand fault mmap and reset zap

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Virtualize CXL DVSEC config writes

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Register regions with VFIO layer

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/pci: Advertise CXL cap and sparse component BAR to userspace

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Provide opt-out for CXL feature

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: docs: vfio-pci: Document CXL Type-2 device passthrough

mmhonap
authored and
JiandiAnNVIDIA
committed

Commits on May 9, 2026

NVIDIA: VR: SAUCE: cxl: Export the CXL reset helpers for VFIO users

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/pci: Wire CXL DPA reset handling

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Ensure PCI Memory Space is enabled before post-reset BAR access

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: preserve HDM decoder base addresses across reset

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: virtualize DVSEC STATUS2 register in vconfig shadow

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: vfio/cxl: Implement vfio_cxl_reset()

mmhonap
authored and
JiandiAnNVIDIA
committed
NVIDIA: VR: SAUCE: config: Enable CONFIG_VFIO_CXL_CORE for CXL Type-2 passthrough
JiandiAnNVIDIA
committed