Re: [PATCH 0/2] Use static_call for kvm_x86_ops

Paolo Bonzini
2021-01-11T17:33:45Z

On 11/01/21 17:57, Jason Baron wrote:
> Hi,
>
> Convert kvm_x86_ops to use static_call. Shows good performance
> gains for cpuid loop micro-benchmark (resulsts included in patch 2).
>
> Thanks,
>
> -Jason
>
> Jason Baron (2):
> KVM: x86: introduce definitions to support static calls for kvm_x86_ops
> KVM: x86: use static calls to reduce kvm_x86_ops overhead
>
> arch/x86/include/asm/kvm_host.h | 71 +++++++++-
> arch/x86/kvm/cpuid.c | 2 +-
> arch/x86/kvm/hyperv.c | 4 +-
> arch/x86/kvm/irq.c | 2 +-
> arch/x86/kvm/kvm_cache_regs.h | 10 +-
> arch/x86/kvm/lapic.c | 28 ++--
> arch/x86/kvm/mmu.h | 6 +-
> arch/x86/kvm/mmu/mmu.c | 12 +-
> arch/x86/kvm/mmu/spte.c | 2 +-
> arch/x86/kvm/pmu.c | 2 +-
> arch/x86/kvm/trace.h | 4 +-
> arch/x86/kvm/x86.c | 299 ++++++++++++++++++++--------------------
> arch/x86/kvm/x86.h | 6 +-
> 13 files changed, 259 insertions(+), 189 deletions(-)
>

Thank you thank you thank you! :)

(Except that now I have to find another task for a new KVM developer,
but that's not a big deal).

Paolo