From: Markus Metzger <markus.t.metzger@intel.com>
Date: Wed, 30 Jan 2008 12:31:09 +0000 (+0100)
Subject: x86, ptrace: support for branch trace store(BTS)
X-Git-Tag: v2.6.25-rc1~1143^2~627
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=eee3af4a2c83a97fff107ddc445d9df6fded9ce4;p=pandora-kernel.git

x86, ptrace: support for branch trace store(BTS)

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Changes to the last version:
- split implementation into two layers: ds/bts and ptrace
- renamed TIF's
- save/restore ds save area msr in __switch_to_xtra()
- make block-stepping only look at BTF bit

Signed-off-by: Markus Metzger <markus.t.metzger@intel.com>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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