CXL-DISABLE-BUS(1) cxl Manual CXL-DISABLE-BUS(1)

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

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.

-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.

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cxl-disable-port(1)

2024-01-12 cxl