| Message ID | 1543230756-15319-2-git-send-email-andrew.murray@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | perf/core: Generalise event exclusion checking | expand |
Hi Andrew, On 26/11/2018 11:12, Andrew Murray wrote: > Update design.txt to reflect the presence of the exclude_host > and exclude_guest perf flags. > > Signed-off-by: Andrew Murray <andrew.murray@arm.com> Thanks a lot for adding this ! > --- > tools/perf/design.txt | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/tools/perf/design.txt b/tools/perf/design.txt > index a28dca2..5b2b23b 100644 > --- a/tools/perf/design.txt > +++ b/tools/perf/design.txt > @@ -222,6 +222,10 @@ The 'exclude_user', 'exclude_kernel' and 'exclude_hv' bits provide a > way to request that counting of events be restricted to times when the > CPU is in user, kernel and/or hypervisor mode. > > +Furthermore the 'exclude_host' and 'exclude_guest' bits provide a way > +to request counting of events restricted to guest and host contexts when > +using KVM virtualisation. minor nit: could we generalise this to : "using Linux as the hypervisor". Otherwise, looks good to me. Cheers Suzuki
diff --git a/tools/perf/design.txt b/tools/perf/design.txt index a28dca2..5b2b23b 100644 --- a/tools/perf/design.txt +++ b/tools/perf/design.txt @@ -222,6 +222,10 @@ The 'exclude_user', 'exclude_kernel' and 'exclude_hv' bits provide a way to request that counting of events be restricted to times when the CPU is in user, kernel and/or hypervisor mode. +Furthermore the 'exclude_host' and 'exclude_guest' bits provide a way +to request counting of events restricted to guest and host contexts when +using KVM virtualisation. + The 'mmap' and 'munmap' bits allow recording of PROT_EXEC mmap/munmap operations, these can be used to relate userspace IP addresses to actual code, even after the mapping (or even the whole process) is gone,
Update design.txt to reflect the presence of the exclude_host and exclude_guest perf flags. Signed-off-by: Andrew Murray <andrew.murray@arm.com> --- tools/perf/design.txt | 4 ++++ 1 file changed, 4 insertions(+)