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Some of the events are blacklisted in power9. The list of blacklisted events are noted in power9-events-list.h When trying to do event open for any of these blacklisted event will cause a failure. Testcase ensures that using blacklisted events will cause event_open to fail in power9. This test is only applicable on power9 DD2.1 and DD2.2 and hence test adds checks to skip on other platforms. Signed-off-by: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20220610134113.62991-26-atrajeev@linux.vnet.ibm.com