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/openbmc/linux/arch/powerpc/platforms/powernv/ |
H A D | opal.c | 11fe909d Wed Mar 29 18:28:01 CDT 2017 Matt Brown <matthew.brown.dev@gmail.com> powerpc/powernv: Add OPAL exports attributes to sysfs
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> 11fe909d Wed Mar 29 18:28:01 CDT 2017 Matt Brown <matthew.brown.dev@gmail.com> powerpc/powernv: Add OPAL exports attributes to sysfs 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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