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authorAdrian Hunter <adrian.hunter@intel.com>2021-04-30 10:03:02 +0300
committerArnaldo Carvalho de Melo <acme@redhat.com>2021-05-12 12:43:10 -0300
commit83d7f5f1ad0ec6072bb5b4ca32795f0c199424e2 (patch)
treefbbf353aed5ee090a809ef4cd70b3d35027da10a /arch/Kconfig
parent2a525f6a5502bfd80568e6befb84053cf650ad25 (diff)
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perf inject: Add --vm-time-correlation option
Intel PT timestamps are affected by virtualization. Add a new option that will allow the Intel PT decoder to correlate the timestamps and translate the virtual machine timestamps to host timestamps. The advantages of making this a separate step, rather than a part of normal decoding are that it is simpler to implement, and it needs to be done only once. This patch adds only the option. Later patches add Intel PT support. Signed-off-by: Adrian Hunter <adrian.hunter@intel.com> Reviewed-by: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Link: https://lore.kernel.org/r/20210430070309.17624-6-adrian.hunter@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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