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Commit bfc36894 authored by Joel Stanley's avatar Joel Stanley Committed by Benjamin Herrenschmidt
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powerpc/powernv: Add OPAL message log interface 


OPAL provides an in-memory circular buffer containing a message log
populated with various runtime messages produced by the firmware.

Provide a sysfs interface /sys/firmware/opal/msglog for userspace to
view the messages.

Signed-off-by: default avatarJoel Stanley <joel@jms.id.au>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent 6e556b47
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