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authorAdrian Hunter <[email protected]>2022-07-11 12:31:55 +0300
committerArnaldo Carvalho de Melo <[email protected]>2022-07-20 11:08:04 -0300
commit797efbc523b37de29dc533a8561d34b97deb42e4 (patch)
tree1fdfa09a245109903781b272162fa21acea03802 /tools/perf/util/scripting-engines/trace-event-python.c
parentff7a78c210ed90bed915df55cc56876d4151c5ac (diff)
perf tools: Add guest_cpu to hypervisor threads
It is possible to know which guest machine was running at a point in time based on the PID of the currently running host thread. That is, perf identifies guest machines by the PID of the hypervisor. To determine the guest CPU, put it on the hypervisor (QEMU) thread for that VCPU. This is done when processing the id_index which provides the necessary information. Signed-off-by: Adrian Hunter <[email protected]> Cc: Andi Kleen <[email protected]> Cc: Ian Rogers <[email protected]> Cc: Jiri Olsa <[email protected]> Cc: Namhyung Kim <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
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