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# Date Author Comment
a9f98bb5 02/01/2013 07:03 pm Jason Wang

vhost: multiqueue support

This patch lets vhost support multiqueue. The idea is simple, just launching
multiple threads of vhost and let each of vhost thread processing a subset of
the virtqueues of the device. After this change each emulated device can have...
f56a1247 01/07/2013 07:42 pm Michael S. Tsirkin

vhost: backend masking support

Support backend guest notifier masking in vhost-net:
create eventfd at device init, when masked,
make vhost use that as eventfd instead of
sending an interrupt.

Signed-off-by: Michael S. Tsirkin <>
022c62cb 12/19/2012 09:31 am Paolo Bonzini

exec: move include files to include/exec/

Signed-off-by: Paolo Bonzini <>
1241ed94 09/07/2012 09:15 am Stefan Hajnoczi

vhost: Pass device path to vhost_dev_init()

The path to /dev/vhost-net is currently hardcoded in vhost_dev_init().
This needs to be changed so that /dev/vhost-scsi can be used. Pass in
the device path instead of hardcoding it.

Signed-off-by: Stefan Hajnoczi <>...
2817b260 01/03/2012 07:19 pm Avi Kivity

vhost: avoid cpu_get_physical_page_desc()

This reaches into the innards of the memory core, which are being
changed. Switch to a memory API version.

Signed-off-by: Avi Kivity <>
04097f7c 12/20/2011 02:14 pm Avi Kivity

vhost: convert to MemoryListener API

Drop the use of cpu_register_phys_memory_client() in favour of the new
MemoryListener API. The new API simplifies the caller, since there is no
need to deal with splitting and merging slots; however this is not exploited...
b0b3db79 08/26/2011 11:25 am Michael S. Tsirkin

vhost-net: cleanup host notifiers at last step

When the vhost notifier is disabled, the userspace handler runs
immediately: virtio_pci_set_host_notifier_internal might
call virtio_queue_notify_vq.
Since the VQ state and the tap backend state aren't
recovered yet, this causes...
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...
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 <>...