On Wed, 2014-06-25 at 11:05 +0800, Mike Qiu wrote:

Here maybe  "/sys/kernel/debug/powerpc/errinjct" is better, because
it 
will supply "PCI_domain_nr" in parameters, so no need supply errinjct 
for each PCI domain.

Another reason is error inject not only for PCI(in future), so better 
not in PCI domain entry.

Also it simple for userland tools to has a fixed path.

I don't like this. I much prefer have dedicated error injection files
in their respective locations, something for PCI under the corresponding
PCI bridge etc...

Cheers,
Ben.