From: Oleg Nesterov <oleg@redhat.com>
To: Jacob Shin <jacob.shin@amd.com>
Cc: Ingo Molnar <mingo@redhat.com>,
Frederic Weisbecker <fweisbec@gmail.com>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
Arnaldo Carvalho de Melo <acme@ghostprotocols.net>,
"H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
x86@kernel.org, Stephane Eranian <eranian@google.com>,
Jiri Olsa <jolsa@redhat.com>,
linux-kernel@vger.kernel.org, Will Deacon <will.deacon@arm.com>
Subject: Re: [PATCH 1/3] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8
Date: Sat, 27 Apr 2013 17:14:34 +0200 [thread overview]
Message-ID: <20130427151434.GA25746@redhat.com> (raw)
In-Reply-To: <20130427150510.GA25109@redhat.com>
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.
Oleg.
next prev parent reply other threads:[~2013-04-27 15:17 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-26 18:57 [PATCH 0/3] perf/x86/amd: AMD Family 16h Data Breakpoint Extensions Jacob Shin
2013-04-26 18:57 ` [PATCH 1/3] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8 Jacob Shin
2013-04-27 15:05 ` Oleg Nesterov
2013-04-27 15:14 ` Oleg Nesterov [this message]
2013-04-27 15:40 ` Jacob Shin
2013-04-27 16:10 ` Oleg Nesterov
2013-04-28 6:05 ` Jacob Shin
2013-04-26 18:57 ` [PATCH 2/3] perf tools: allow user to specify hardware breakpoint bp_len Jacob Shin
2013-04-27 16:58 ` Oleg Nesterov
2013-04-27 17:34 ` Oleg Nesterov
2013-04-28 5:44 ` Jacob Shin
2013-04-28 5:50 ` H. Peter Anvin
2013-04-28 16:12 ` Oleg Nesterov
2013-04-26 18:57 ` [PATCH 3/3] perf tools: add hardware breakpoint bp_len test cases Jacob Shin
-- strict thread matches above, loose matches on Subject: below --
2013-04-28 6:05 [PATCH V4 0/3] perf/x86/amd: AMD Family 16h Data Breakpoint Extensions Jacob Shin
2013-04-28 6:05 ` [PATCH 1/3] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8 Jacob Shin
2013-10-02 16:11 [PATCH V5 0/3] perf/x86/amd: AMD Family 16h Data Breakpoint Extensions suravee.suthikulpanit
2013-10-02 16:11 ` [PATCH 1/3] perf/x86/amd: AMD support for bp_len > HW_BREAKPOINT_LEN_8 suravee.suthikulpanit
2013-10-31 9:58 ` Frederic Weisbecker
2013-10-31 10:48 ` Borislav Petkov
2013-10-31 11:23 ` Frederic Weisbecker
2013-11-02 4:34 ` Borislav Petkov
2013-11-08 21:22 ` Suravee Suthikulpanit
2013-11-08 14:40 ` Borislav Petkov
2013-10-31 16:49 ` Oleg Nesterov
2013-11-08 19:41 ` Frederic Weisbecker
2013-11-09 15:11 ` Oleg Nesterov
2013-11-09 15:32 ` Frederic Weisbecker
2013-11-09 15:54 ` Oleg Nesterov
2013-11-11 15:44 ` Frederic Weisbecker
2013-11-11 17:51 ` Oleg Nesterov
2013-12-02 23:12 ` Frederic Weisbecker
2013-12-04 13:57 ` Oleg Nesterov
2013-12-10 14:43 ` Frederic Weisbecker
2013-12-10 14:52 ` Frederic Weisbecker
2013-12-10 15:23 ` Frederic Weisbecker
2013-12-10 16:19 ` Oleg Nesterov
2013-12-10 16:30 ` Frederic Weisbecker
2013-12-11 12:05 ` Suravee Suthikulanit
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