korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-11 20:48:49 +08:00
Code Issues Packages Projects Releases Wiki Activity

virtio: set pci bus master enable bit

Browse Source 
As all virtio devices perform DMA, we
must enable bus mastering for them to be
spec compliant.

This patch fixes hotplug of virtio devices
with Linux guests and qemu 0.11-0.12.

Tested-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Michael S. Tsirkin 2009-11-29 17:52:00 +02:00
parent 3119815912
commit bc505f3739
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/virtio/virtio_pci.c
View File

@ -649,6 +649,7 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev,
goto out_req_regions; goto out_req_regions;
pci_set_drvdata(pci_dev, vp_dev); pci_set_drvdata(pci_dev, vp_dev);
pci_set_master(pci_dev);
/* we use the subsystem vendor/device id as the virtio vendor/device /* we use the subsystem vendor/device id as the virtio vendor/device
* id. this allows us to use the same PCI vendor/device id for all * id. this allows us to use the same PCI vendor/device id for all