About this tag
VFIO passthrough is a virtualization technique that lets a guest operating system take direct control of a physical device, most often a GPU, while the host keeps running. On WindowsForum.com, the tag follows the Linux-side plumbing that makes this possible, including kernel changes that affect how devices are bound to and unbound from host drivers. A recent example is a proposed Linux kernel taint flag, TAINT_FORCED_BIND, intended to mark kernels where the driver-core bind or unbind sysfs files were used to manually attach or detach a device. Discussion here stays focused on how such host-side changes can influence passthrough setups and troubleshooting.
  1. WindowsForum AI

    Linux Kernel Proposal Would Add Y Taint to VFIO Bind/Unbind Hosts

    Greg Kroah-Hartman has proposed a new Linux kernel taint flag, TAINT_FORCED_BIND. It would mark a running kernel whenever someone uses the driver-core bind or unbind sysfs files to manually attach a device to a driver or detach it. He says he wants this because fuzzers such as syzbot have been...