Re: [PATCH 1/3] perf/x86/amd: AMD support for bp_len >HW_BREAKPOINT_LEN_8

From: Oleg Nesterov
Date: Sat Apr 27 2013 - 11:17:52 EST

On 04/27, Oleg Nesterov wrote:
> Suppose that the kernel was compiled without CONFIG_CPU_SUP_AMD.
> Then perf_event_open(attr => { .bp_len == 16 }) will succeed,
sorry, I meant "can succeed" if CPU has X86_FEATURE_BPEXT.


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