This is a note to let you know that I've just added the patch titled
virtio: set pci bus master enable bit
to the 2.6.32-longterm tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/longterm/longterm-queue-2.6.32.git;a=summary
The filename of the patch is:
virtio-set-pci-bus-master-enable-bit.patch
and it can be found in the queue-2.6.32 subdirectory.
If you, or anyone else, feels it should not be added to the 2.6.32 longterm
tree,
please let <[email protected]> know about it.
>From bc505f373979692d51a86d40925f77a8b09d17b9 Mon Sep 17 00:00:00 2001
From: Michael S. Tsirkin <[email protected]>
Date: Sun, 29 Nov 2009 17:52:00 +0200
Subject: virtio: set pci bus master enable bit
From: Michael S. Tsirkin <[email protected]>
commit bc505f373979692d51a86d40925f77a8b09d17b9 upstream.
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 <[email protected]>
Signed-off-by: Michael S. Tsirkin <[email protected]>
Cc: maximilian attems <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/virtio/virtio_pci.c | 1 +
1 file changed, 1 insertion(+)
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -647,6 +647,7 @@ static int __devinit virtio_pci_probe(st
goto out_req_regions;
pci_set_drvdata(pci_dev, vp_dev);
+ pci_set_master(pci_dev);
/* 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
Patches currently in longterm-queue-2.6.32 which might be from [email protected]
are
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