hulk inclusion
category: feature
bugzilla: 49592
CVE: NA

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This feature is based on "arm64: perf: add nmi support for pmu" patch
series. It can be enabled by passing the kernel cmdline parameter
"hardlockup_enable=on", or the perf NMI watchdog will be disabled
defaultly.
Signed-off-by: NWei Li <liwei391@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>