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[S390] virtualization aware cpu measurement

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Use the SPP instruction to set a tag on entry to / exit of the virtual
machine context. This allows the cpu measurement facility to distinguish
the samples from the host and the different guests.

Signed-off-by: Carsten Otte <cotte@de.ibm.com>
This commit is contained in:
Carsten Otte 2010-05-17 10:00:04 +02:00 • committed by Martin Schwidefsky
commit cd3b70f5d4
8 changed files with 105 additions and 26 deletions
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