diff options
Diffstat (limited to 'arch/powerpc/kvm/book3s_hv.c')
| -rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index a7fe1783d245..a393c2b6b1b6 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -3490,9 +3490,15 @@ static int kvmppc_set_passthru_irq(struct kvm *kvm, int host_irq, int guest_gsi) irq_map = &pimap->mapped[i]; irq_map->v_hwirq = guest_gsi; - irq_map->r_hwirq = desc->irq_data.hwirq; irq_map->desc = desc; + /* + * Order the above two stores before the next to serialize with + * the KVM real mode handler. + */ + smp_wmb(); + irq_map->r_hwirq = desc->irq_data.hwirq; + if (i == pimap->n_mapped) pimap->n_mapped++; |