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# Date Author Comment
5430a28f 02/02/2011 12:50 am mst@redhat.com

vhost: force vhost off for non-MSI guests

When MSI is off, each interrupt needs to be bounced through the io
thread when it's set/cleared, so vhost-net causes more context switches and
higher CPU utilization than userspace virtio which handles networking in...
6b37c87c 09/14/2010 05:02 pm Michael S. Tsirkin

vhost: fix infinite loop on error path

file.index is unsigned, hence 'while (--file.index >= 0)'
will loop > forever. Change to while (file.index-- > 0).

Reported-by: Jes Sorensen <>
Signed-off-by: Michael S. Tsirkin <>
ca736c8e 09/07/2010 08:27 pm Michael S. Tsirkin

vhost_net: mergeable buffers support

use the new tap APIs to set header length

Signed-off-by: Michael S. Tsirkin <>
708f2ada 07/31/2010 12:25 am Mike McCormack

Remove unused eventfd.h

This header is not present on my system and causes a build
failure, but is also not used in these files, so remove it.

Signed-off-by: Mike McCormack <>
Signed-off-by: Aurelien Jarno <>
29f91781 05/27/2010 09:57 pm Jes Sorensen

vhost_net.c: v2 Fix build failure introduced by 0bfcd599e3f5c5679cc7d0165a0a1822e2f60de2

Fix build failure introduced by 0bfcd599e3f5c5679cc7d0165a0a1822e2f60de2

The format statement expects unsigned long on x86_64, but receives
unsigned long long, so gcc exits with an error....
0bfcd599 05/22/2010 11:02 am Blue Swirl

Fix %lld or %llx printf format use

Signed-off-by: Blue Swirl <>
5751995a 04/14/2010 12:59 am Michael S. Tsirkin

vhost-net: disable mergeable buffers

vhost in current kernels doesn't support mergeable buffers.
Disable this feature if vhost is enabled, until such
support is implemented.

Signed-off-by: Michael S. Tsirkin <>
Signed-off-by: Aurelien Jarno <>
d5970055 04/01/2010 09:56 pm Michael S. Tsirkin

vhost: vhost net support

This adds vhost net device support in qemu. Will be tied to tap device
and virtio by following patches. Raw backend is currently missing,
will be worked on/submitted separately.

Signed-off-by: Michael S. Tsirkin <>...