From mboxrd@z Thu Jan 1 00:00:00 1970 From: andrew.murray@arm.com (Andrew Murray) Date: Fri, 16 Nov 2018 10:24:13 +0000 Subject: [PATCH 10/10] perf/doc: update design.txt for exclude_{host|guest} flags In-Reply-To: <1542363853-13849-1-git-send-email-andrew.murray@arm.com> References: <1542363853-13849-1-git-send-email-andrew.murray@arm.com> Message-ID: <1542363853-13849-11-git-send-email-andrew.murray@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Update design.txt to reflect the presence of the exclude_host and exclude_guest perf flags. Signed-off-by: Andrew Murray --- tools/perf/design.txt | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tools/perf/design.txt b/tools/perf/design.txt index a28dca2..7de7d83 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 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, -- 2.7.4