On 15.03.19 18:50, Paolo Bonzini wrote: > On 05/03/19 11:30, Christian Borntraeger wrote: >> Folks, >> >> this is a very simple variant to disable halt polling when the KVM host >> is already running virtualized. We could imagine more complex variants >> (like tuning down the halt polling value) but this seems to do the trick >> for some kvm deployment scenarios on s390x. (e.g. having multiple LPARS >> with KVMs that are in itself already overcommitted). >> This still needs tuning and the right default value, but I want to start >> the discussion. >> >> >> Christian Borntraeger (2): >> KVM: polling: add architecture backend to disable polling >> KVM: s390: provide kvm_arch_no_poll function >> >> arch/s390/include/asm/kvm_host.h | 6 ++++++ >> arch/s390/kvm/Kconfig | 1 + >> include/linux/kvm_host.h | 10 ++++++++++ >> virt/kvm/Kconfig | 3 +++ >> virt/kvm/kvm_main.c | 2 +- >> 5 files changed, 21 insertions(+), 1 deletion(-) >> > > Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx> > > Can you resubmit with a fix for the issue pointed out by the test robot? Yes, this was based on a patch that was still missing in linux-next. Its now there. I will also add some instrumentation (kvm stat counter I think) in the next version.
