Re: [libvirt] [PATCH v4 5/8] perf: add new xml element

This patch adds new xml element, and so we can have the option of also having perf events enabled immediately at startup. Signed-off-by: Qiaowei Ren <qiaowei.ren(a)intel.com&gt; --- docs/schemas/domaincommon.rng | 27 +++++++ src/conf/domain_conf.c | 111 ++++++++++++++++++++++++++ src/conf/domain_conf.h | 10 +++ src/qemu/qemu_driver.c | 26 ++++++ src/qemu/qemu_process.c | 8 +- tests/domainschemadata/domain-perf-simple.xml | 20 +++++ 6 files changed, 200 insertions(+), 2 deletions(-)

diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index f7d30e9..cf7df1a 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -5254,8 +5254,12 @@ qemuProcessLaunch(virConnectPtr conn, goto cleanup; priv->perf = virPerfNew(); - if (!priv->perf) - goto cleanup; + if (priv->perf) { + for (size_t i = 0; i < VIR_PERF_EVENT_LAST; i++) {

+ if (vm->def->perf->events[i] == VIR_TRISTATE_BOOL_YES) + virPerfEventEnable(priv->perf, i, vm->pid); + } + }