On a Friday in 2020, Lin Ma wrote:
While we set up perf events for a shutoff domain and check the settings, All of perf events are reported as 'disabled', unless we add --config, This is redundant for a shutoff domain.# virsh domstate $GUEST shut off # virsh perf --domain $GUEST cmt : disabled mbmt : disabled mbml : disabled ...... # virsh perf --domain $GUEST --enable mbmt mbmt : enabled # virsh perf --domain $GUEST cmt : disabled mbmt : disabled mbml : disabled ...... Use virDomainObjGetOneDefState instead of virDomainObjGetOneDef to fix the issue. After patch, The perf event status of a shutoff domain is reported correctly: # virsh domstate $GUEST shut off # virsh perf --domain $GUEST cmt : disabled mbmt : disabled mbml : disabled ...... # virsh perf --domain $GUEST --enable mbmt mbmt : enabled # virsh perf --domain $GUEST cmt : disabled mbmt : enabled mbml : disabled ...... Signed-off-by: Lin Ma <[email protected]> --- src/qemu/qemu_driver.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-)
Reviewed-by: Ján Tomko <[email protected]> Jano
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