Re: [Qemu-devel] [PULL] pci,virtio

["Michael S. Tsirkin" <mst@redhat.com>]

On Tue, Jan 15, 2013 at 11:09:22AM +0100, Andreas Färber wrote:
> Am 13.01.2013 11:47, schrieb Michael S. Tsirkin:
> > The following changes since commit 8e4a424b305e29dc0e454f52df3b35577f342975:
> > 
> >   Revert "virtio-pci: replace byte swap hack" (2013-01-06 18:30:17 +0000)
> > 
> > are available in the git repository at:
> > 
> >   git://git.kernel.org/pub/scm/virt/kvm/mst/qemu.git tags/for_anthony
> > 
> > for you to fetch changes up to feb9a2ab4b0260d8d680a7ffd25063dafc7ec628:
> > 
> >   pci-assign: Enable MSIX on device to match guest (2013-01-09 12:11:16 +0200)
> > 
> > ----------------------------------------------------------------
> > pci,virtio
> > 
> > This further optimizes MSIX handling in virtio-pci.
> > Also included is pci cleanup by Paolo, and pci device
> > assignment fix by Alex.
> > 
> > Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
> > 
> > ----------------------------------------------------------------
> > Alex Williamson (1):
> >       pci-assign: Enable MSIX on device to match guest
> > 
> > Michael S. Tsirkin (8):
> >       virtio: don't waste irqfds on control vqs
> >       msix: add api to access msix message
> >       kvm: add stub for update msi route
> >       virtio-pci: cache msix messages
> 
> This broke the build with PowerKVM:
> 
>   LINK  ppc64-softmmu/qemu-system-ppc64
> ../hw/virtio-pci.o: In function `kvm_virtio_pci_vq_vector_unmask':
> /home/andreas/QEMU/qemu/hw/virtio-pci.c:622: undefined reference to
> `kvm_irqchip_update_msi_route'
> collect2: error: ld returned 1 exit status
> make[1]: *** [qemu-system-ppc64] Fehler 1
> make: *** [subdir-ppc64-softmmu] Fehler 2
> 
> Can you supply a fix? It's not obvious to me how.
> 
> Thanks,
> Andreas

I'm not sure how to build this. Can you tell me pls?
Maybe the below helps?

kvm: add stub for kvm_irqchip_update_msi_route

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>


diff --git a/kvm-all.c b/kvm-all.c
index fc0c6e7..bac67da 100644
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1182,6 +1182,11 @@ static int kvm_irqchip_assign_irqfd(KVMState *s, int fd, int virq, bool assign)
 {
     abort();
 }
+
+int kvm_irqchip_update_msi_route(KVMState *s, int virq, MSIMessage msg)
+{
+    return -ENOSYS;
+}
 #endif /* !KVM_CAP_IRQ_ROUTING */
 
 int kvm_irqchip_add_irqfd_notifier(KVMState *s, EventNotifier *n, int virq)