[PATCH 18/19] msix: Add msix_nr_vectors_allocated

[Avi Kivity <avi@redhat.com>]

From: Jan Kiszka <jan.kiszka@siemens.com>

Analogously to msi_nr_vectors_allocated, add a service for MSI-X. Will
be used by the virtio-pci layer.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
 hw/msix.c |    5 +++++
 hw/msix.h |    2 ++
 2 files changed, 7 insertions(+)

diff --git a/hw/msix.c b/hw/msix.c
index 1622e16..59c7a83 100644
--- a/hw/msix.c
+++ b/hw/msix.c
@@ -452,6 +452,11 @@ void msix_unuse_all_vectors(PCIDevice *dev)
     msix_free_irq_entries(dev);
 }
 
+unsigned int msix_nr_vectors_allocated(const PCIDevice *dev)
+{
+    return dev->msix_entries_nr;
+}
+
 static int msix_set_notifier_for_vector(PCIDevice *dev, unsigned int vector)
 {
     MSIMessage msg;
diff --git a/hw/msix.h b/hw/msix.h
index f33f18b..50aee82 100644
--- a/hw/msix.h
+++ b/hw/msix.h
@@ -13,6 +13,8 @@ void msix_write_config(PCIDevice *pci_dev, uint32_t address,
 
 int msix_uninit(PCIDevice *d, MemoryRegion *bar);
 
+unsigned int msix_nr_vectors_allocated(const PCIDevice *dev);
+
 void msix_save(PCIDevice *dev, QEMUFile *f);
 void msix_load(PCIDevice *dev, QEMUFile *f);
 
-- 
1.7.10.1