Re: [RFCv2 34/37] KVM: s390: protvirt: Add UV debug trace

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On Fri, 7 Feb 2020 09:05:27 +0100
Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:

> On 06.02.20 10:41, Cornelia Huck wrote:
> > On Mon,  3 Feb 2020 08:19:54 -0500
> > Christian Borntraeger <borntraeger@xxxxxxxxxx> wrote:
> >   
> >> From: Janosch Frank <frankja@xxxxxxxxxxxxx>
> >>
> >> Let's have some debug traces which stay around for longer than the
> >> guest.
> >>
> >> Signed-off-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> >> ---
> >>  arch/s390/kvm/kvm-s390.c | 10 +++++++++-
> >>  arch/s390/kvm/kvm-s390.h |  9 +++++++++
> >>  arch/s390/kvm/pv.c       | 21 +++++++++++++++++++--
> >>  3 files changed, 37 insertions(+), 3 deletions(-)

> > You often seem to log in pairs (into the per-vm dbf and into the new uv
> > dbf). Would it make sense to introduce a new helper for that, or is
> > that overkill?  
> 
> I guess the logging will see several changes over time anyway. Let us start
> with an initial variant. 

Fair enough.




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