cxl-disable-bus(1)

Shutdown an entire tree of CXL devices

Section 1 ndctl bookworm source

Description

CXL-DISABLE-BUS

NAME

cxl-disable-bus - Shutdown an entire tree of CXL devices

SYNOPSIS

cxl disable-bus <root0> [<root1>..<rootN>] [<options>]

For test and debug scenarios, disable a CXL bus and any associated memory devices from CXL.mem operations.

OPTIONS

-f, --force

DANGEROUS: Override the safety measure that blocks attempts to disable a bus if the tool determines a descendent memdev is in active usage. Recall that CXL memory ranges might have been established by platform firmware and disabling an active device is akin to force removing memory from a running system.

--debug

If the cxl tool was built with debug disabled, turn on debug messages.

COPYRIGHT

Copyright © 2016 - 2022, Intel Corporation. License GPLv2: GNU GPL version 2 <http://gnu.org/licenses/gpl.html>. This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.