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[Qemu-devel] [PATCH] virtio-serial: pci: Allow MSI to be disabled


From: Amit Shah
Subject: [Qemu-devel] [PATCH] virtio-serial: pci: Allow MSI to be disabled
Date: Fri, 12 Feb 2010 18:52:38 +0530

Michael noted we don't allow disabling of MSI for the virtio-serial-pci
device. Fix that.

Signed-off-by: Amit Shah <address@hidden>
CC: "Michael S. Tsirkin" <address@hidden>
---
 hw/virtio-pci.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index f3373ae..bcd40f7 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -500,8 +500,8 @@ static int virtio_serial_init_pci(PCIDevice *pci_dev)
     if (!vdev) {
         return -1;
     }
-    vdev->nvectors = proxy->nvectors ? proxy->nvectors
-                                     : proxy->max_virtserial_ports + 1;
+    vdev->nvectors = proxy->nvectors == -1 ? proxy->max_virtserial_ports + 1
+                                           : proxy->nvectors;
     virtio_init_pci(proxy, vdev,
                     PCI_VENDOR_ID_REDHAT_QUMRANET,
                     PCI_DEVICE_ID_VIRTIO_CONSOLE,
@@ -585,7 +585,7 @@ static PCIDeviceInfo virtio_info[] = {
         .init      = virtio_serial_init_pci,
         .exit      = virtio_exit_pci,
         .qdev.props = (Property[]) {
-            DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, 0),
+            DEFINE_PROP_UINT32("vectors", VirtIOPCIProxy, nvectors, -1),
             DEFINE_PROP_HEX32("class", VirtIOPCIProxy, class_code, 0),
             DEFINE_VIRTIO_COMMON_FEATURES(VirtIOPCIProxy, host_features),
             DEFINE_PROP_UINT32("max_ports", VirtIOPCIProxy, 
max_virtserial_ports,
-- 
1.6.2.5





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