powerpc/powernv: Add OPAL exports attributes to sysfs

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New versions of OPAL have a device node /ibm,opal/firmware/exports, each
property of which describes a range of memory in OPAL that Linux might
want to export to userspace for debugging.

This patch adds a sysfs file under 'opal/exports' for each property
found there, and makes it read-only by root.

Signed-off-by: Matt Brown <matthew.brown.dev@gmail.com>
[mpe: Drop counting of props, rename to attr, free on sysfs error, c'log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

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Matt Brown 2017-03-30 10:28:01 +11:00 • committed by Michael Ellerman

parent 687da8fce1

commit 11fe909d23

1 changed files with 76 additions and 0 deletions

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arch/powerpc/platforms/powernv/opal.c

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