On Mon, Sep 19, 2016 at 02:55:02PM +0200, Lluís Vilanova wrote:
> Adds events to track vCPU hot-(un)plugging and reset.
> 
> As a bonus, first patch fixes per-vCPU dynamic event state initialization,
> making the current late initialization code obsolete.
> 
> NOTE: This series is missing CPU hot-unplug, since I could not find a generic
>       point to hook the event.
> 
> Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
> ---
> 
> Changes in v3
> =============
> 
> * Remove code for trace_fini_vcpu(), since there is no full support for
>   hot-unplugging.
> 
> 
> Changes in v2
> =============
> 
> * Properly support vCPU hot-plugging to "inherit" dynamic event states.
> * Rename event "guest_cpu_init" to "guest_cpu_enter".
> 
> 
> Lluís Vilanova (3):
>       trace: Properly initialize dynamic event states in hot-plugged vCPUs
>       trace: Add event "guest_cpu_enter"
>       trace: Add event "guest_cpu_reset"
> 
> 
>  bsd-user/main.c        |    1 -
>  linux-user/main.c      |    1 -
>  qom/cpu.c              |    6 ++++++
>  stubs/trace-control.c  |    6 ++++++
>  trace-events           |   13 +++++++++++++
>  trace/control-target.c |   40 ++++++++++++++++++++++++++++++++++++++++
>  trace/control.c        |   19 -------------------
>  trace/control.h        |   19 ++++++++-----------
>  vl.c                   |    1 -
>  9 files changed, 73 insertions(+), 33 deletions(-)
> 
> 
> To: qemu-devel@nongnu.org
> Cc: Stefan Hajnoczi <stefanha@redhat.com>

Thanks, applied to my tracing tree:
https://github.com/stefanha/qemu/commits/tracing

Stefan