From: Fam Zheng <famz@redhat.com>
Date: Mon, 23 Jun 2014 09:06:25 +0000 (+0800)
Subject: virtio-pci: Report an error when msix vectors init fails
X-Git-Tag: v2.1.0-rc0~31^2~8
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c7ff54825b74f27c3aac85aad540542801630d0a;p=thirdparty%2Fqemu.git

virtio-pci: Report an error when msix vectors init fails

Currently vectors silently cleared to 0 if the initialization is failed,
but user should at least have one way to notice this.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---

diff --git a/hw/virtio/virtio-pci.c b/hw/virtio/virtio-pci.c
index ce97514b69a..57e1e6141e6 100644
--- a/hw/virtio/virtio-pci.c
+++ b/hw/virtio/virtio-pci.c
@@ -976,6 +976,8 @@ static void virtio_pci_device_plugged(DeviceState *d)
 
     if (proxy->nvectors &&
         msix_init_exclusive_bar(&proxy->pci_dev, proxy->nvectors, 1)) {
+        error_report("unable to init msix vectors to %" PRIu32,
+                     proxy->nvectors);
         proxy->nvectors = 0;
     }