On 03.07.2013, at 14:42, Mihai Caraman wrote: > Increase FPU laziness by calling kvmppc_load_guest_fp() just before > returning to guest instead of each sched in. Without this improvement > an interrupt may also claim floting point corrupting guest state.
Not sure I follow. Could you please describe exactly what's happening? Alex > > Signed-off-by: Mihai Caraman <mihai.cara...@freescale.com> > --- > arch/powerpc/kvm/booke.c | 1 + > arch/powerpc/kvm/e500mc.c | 2 -- > 2 files changed, 1 insertions(+), 2 deletions(-) > > diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c > index 113961f..3cae2e3 100644 > --- a/arch/powerpc/kvm/booke.c > +++ b/arch/powerpc/kvm/booke.c > @@ -1204,6 +1204,7 @@ int kvmppc_handle_exit(struct kvm_run *run, struct > kvm_vcpu *vcpu, > r = (s << 2) | RESUME_HOST | (r & RESUME_FLAG_NV); > } else { > kvmppc_lazy_ee_enable(); > + kvmppc_load_guest_fp(vcpu); > } > } > > diff --git a/arch/powerpc/kvm/e500mc.c b/arch/powerpc/kvm/e500mc.c > index 19c8379..09da1ac 100644 > --- a/arch/powerpc/kvm/e500mc.c > +++ b/arch/powerpc/kvm/e500mc.c > @@ -143,8 +143,6 @@ void kvmppc_core_vcpu_load(struct kvm_vcpu *vcpu, int cpu) > kvmppc_e500_tlbil_all(vcpu_e500); > __get_cpu_var(last_vcpu_on_cpu) = vcpu; > } > - > - kvmppc_load_guest_fp(vcpu); > } > > void kvmppc_core_vcpu_put(struct kvm_vcpu *vcpu) > -- > 1.7.3.4 > > > -- > To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in > the body of a message to majord...@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe kvm-ppc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html