[PATCH] Add macros for rdtscp
This patch adds macros for reading tsc via the RDTSCP instruction, as well as writing the auxilliary MSR read by RDTSCP to msr.h [AK: changed rdtscp definition for old binutils] Signed-off-by: NVojtech Pavlik <vojtech@suse.cz> Signed-off-by: NAndi Kleen <ak@suse.de>
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