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authorKonstantin Belousov <kib@FreeBSD.org>2016-02-12 07:27:24 +0000
committerKonstantin Belousov <kib@FreeBSD.org>2016-02-12 07:27:24 +0000
commit411c83ccd691eec84686df54c5cc7ee3cdbeb265 (patch)
tree03b7658a0a050f361c040e69c7caca92eb3b1e78 /include/signal.h
parent70c1d5a32a1aac6fc6541fc4097cdc69b4dc4fc1 (diff)
downloadsrc-411c83ccd691eec84686df54c5cc7ee3cdbeb265.tar.gz
src-411c83ccd691eec84686df54c5cc7ee3cdbeb265.zip
If full width writes to the performance monitoring counters are
supported, use full-width aliases MSRs for writes. This fixes the "[pmc,X] negative increment" assertion on the context switch when clipped counter value is sign-extended. Add definitions for the MSR IA32_PERF_CAPABILITIES needed to detect the feature. PR: 207068 Submitted by: joss.upton@yahoo.com MFC after: 2 weeks
Notes
Notes: svn path=/head/; revision=295560
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