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# Date Author Comment
7b67b18a 03/28/2011 07:34 pm Michael S. Tsirkin

vhost: fix dirty page handling

vhost was passing a physical address to cpu_physical_memory_set_dirty,
which is wrong: we need to translate to ram address first.

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

Note: this lead to crashes during migration, so the patch...
e5896b12 02/14/2011 04:39 pm Anthony PERARD

Introduce log_start/log_stop in CPUPhysMemoryClient

In order to use log_start/log_stop with Xen as well in the vga code,
this two operations have been put in CPUPhysMemoryClient.

The two new functions cpu_physical_log_start,cpu_physical_log_stop are
used in hw/vga.c and replace the kvm_log_start/stop. With this, vga does...
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...
0c600ce2 12/02/2010 09:13 pm Jason Wang

vhost: Fix address calculation in vhost_dev_sync_region()

We still need advance address even we find there's no dirty pages in
current chunk.

Signed-off-by: Jason Wang <>
Signed-off-by: Michael S. Tsirkin <>
54dd9321 10/07/2010 01:19 pm Michael S. Tsirkin

virtio: change set guest notifier to per-device

When using irqfd with vhost-net to inject interrupts,
a single evenfd might inject multiple interrupts.
Implementing this is much easier with a single
per-device callback to set guest notifiers.

Signed-off-by: Michael S. Tsirkin <>
c8852121 10/07/2010 01:19 pm Michael S. Tsirkin

vhost: error code

fix up errors returned to include errno, not just -1

Signed-off-by: Michael S. Tsirkin <>
bf1b0071 09/18/2010 08:53 am Blue Swirl

Introduce range.h

Extract range functions from pci.h. These will be used by later patches
by non-PCI devices. Adjust current users.

Signed-off-by: Blue Swirl <>
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 <>
d154e0ba 07/19/2010 02:20 pm Michael S. Tsirkin

vhost: fix miration during device start

We need to know ring layout to allocate log buffer.
So init rings first.

Also fixes a theoretical memory-leak-on-error.

https://bugzilla.redhat.com/show_bug.cgi?id=615228

Signed-off-by: Michael S. Tsirkin <>...
11078ae3 04/14/2010 01:12 am Marcelo Tosatti

vhost.c: include <linux/vhost.h> last

So the userspace headers define KERNEL_STRICT_NAMES and there's no
conflict on type definition for older kernels.

Signed-off-by: Marcelo Tosatti <>
Acked-by: Michael S. Tsirkin <>
Signed-off-by: Aurelien Jarno <>
2b3af999 04/02/2010 01:01 am Stefan Weil

win32: Fix compiler errors from u_int64_t

u_int64_t raises compiler error messages:

CC    libhw32/virtio.o
/qemu/ar7/hw/virtio.c: In function ‘virtio_queue_get_avail_size’:
/qemu/ar7/hw/virtio.c:776: error: ‘u_int64_t’ undeclared (first use in this function)...
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 <>...