void kvm_flush_coalesced_mmio_buffer(void) { #ifdef KVM_CAP_COALESCED_MMIO KVMState *s = kvm_state; if (s->coalesced_mmio_ring) { struct kvm_coalesced_mmio_ring *ring = s->coalesced_mmio_ring; while (ring->first != ring->last) { struct kvm_coalesced_mmio *ent; ent = &ring->coalesced_mmio[ring->first]; cpu_physical_memory_write(ent->phys_addr, ent->data, ent->len); smp_wmb(); ring->first = (ring->first + 1) % KVM_COALESCED_MMIO_MAX; } } #endif }