mk-rootfs.sh

hc

2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376

 kernel/tools/perf/design.txt
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@@ -222,6 +222,10 @@
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 way to request that counting of events be restricted to times when the
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 CPU is in user, kernel and/or hypervisor mode.
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+Furthermore the 'exclude_host' and 'exclude_guest' bits provide a way
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+to request counting of events restricted to guest and host contexts when
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+using Linux as the hypervisor.
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+
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 The 'mmap' and 'munmap' bits allow recording of PROT_EXEC mmap/munmap
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 operations, these can be used to relate userspace IP addresses to actual
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 code, even after the mapping (or even the whole process) is gone,
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@@ -254,7 +258,8 @@
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 their own tasks.
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 A 'pid == -1' and 'cpu == x' counter is a per CPU counter that counts
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-all events on CPU-x. Per CPU counters need CAP_SYS_ADMIN privilege.
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+all events on CPU-x. Per CPU counters need CAP_PERFMON or CAP_SYS_ADMIN
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+privilege.
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 The 'flags' parameter is currently unused and must be zero.
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