virtio: add virtio_device_set_child_bus_name.

Add virtio_device_set_child_bus_name function.

It will be used with virtio-serial-x and virtio-scsi-x to set the
child bus name before calling virtio-x

virtio: add virtio_device_set_child_bus_name.

Add virtio_device_set_child_bus_name function.

It will be used with virtio-serial-x and virtio-scsi-x to set the
child bus name before calling virtio-x-device's init.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio: drop unused function prototypes.

This removes the unused prototypes in virtio.h.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-8-git-send-email-fred

virtio: drop unused function prototypes.

This removes the unused prototypes in virtio.h.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-8-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio: cleanup: init and exit function.

This clean the init and the exit functions and rename virtio_common_cleanup
to virtio_cleanup.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Me

virtio: cleanup: init and exit function.

This clean the init and the exit functions and rename virtio_common_cleanup
to virtio_cleanup.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-7-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio: remove virtiobindings.

This remove virtio-bindings, and use class instead.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-6-git-send-email-fred.konra

virtio: remove virtiobindings.

This remove virtio-bindings, and use class instead.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-6-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio: remove the function pointer.

This remove the function pointer in VirtIODevice, and use only
VirtioDeviceClass function pointer.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Me

virtio: remove the function pointer.

This remove the function pointer in VirtIODevice, and use only
VirtioDeviceClass function pointer.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-5-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio-rng: cleanup: init and exit functions.

This remove old init and exit function as they are no longer needed.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huc

virtio-rng: cleanup: init and exit functions.

This remove old init and exit function as they are no longer needed.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Message-id: 1366790881-3026-7-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio.h: drop unused function prototypes

They are unused since commit 5c7d0962f60498c3f11d402e1c857cb9d5d8568d.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Stefan Hajnoc

virtio.h: drop unused function prototypes

They are unused since commit 5c7d0962f60498c3f11d402e1c857cb9d5d8568d.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

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virtio: add two functions to VirtioDeviceClass.

Recent changes need two functions to VirtioDevice. This just add them
into VirtioDeviceClass.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.c

virtio: add two functions to VirtioDeviceClass.

Recent changes need two functions to VirtioDevice. This just add them
into VirtioDeviceClass.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1365690602-22729-2-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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hw: move headers to include/

Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it n

hw: move headers to include/

Many of these should be cleaned up with proper qdev-/QOM-ification.
Right now there are many catch-all headers in include/hw/ARCH depending
on cpu.h, and this makes it necessary to compile these files per-target.
However, fixing this does not belong in these patches.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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virtio-blk: cleanup: init and exit functions.

As all virtio-blk-* are switched to the new API, we can remove the separate
init/exit for the old API.

Signed-off-by: KONRAD Frederic <fred.konrad@gree

virtio-blk: cleanup: init and exit functions.

As all virtio-blk-* are switched to the new API, we can remove the separate
init/exit for the old API.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1363624648-16906-10-git-send-email-fred.konrad@greensocs.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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hw: include hw header files with full paths

Done with this script:

cd hw
for i in `find . -name '*.h' | sed 's/^..//'`; do
echo '\,^#.*include.*["<]'$i'[">], s,'$i',hw/&,'
done | sed -i -f - `fin

hw: include hw header files with full paths

Done with this script:

cd hw
for i in `find . -name '*.h' | sed 's/^..//'`; do
echo '\,^#.*include.*["<]'$i'[">], s,'$i',hw/&,'
done | sed -i -f - `find . -type f`

This is so that paths remain valid as files are moved.

Instead, files in hw/dataplane are referenced with the relative path.
We know they are not going to move to include/, and they are the only
include files that are in subdirectories _and_ move.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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virtio-9p: remove PCI dependencies from hw/9pfs/

Also move the 9p.h file to 9pfs/virtio-9p-device.h, for consistency
with the corresponding .c file.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.co

virtio-9p: remove PCI dependencies from hw/9pfs/

Also move the 9p.h file to 9pfs/virtio-9p-device.h, for consistency
with the corresponding .c file.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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virtio-9p: use CONFIG_VIRTFS, not CONFIG_LINUX

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

virtio-net: pass host features to virtio_net_init

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

virtio: add a queue_index to VirtQueue

Add a queue_index to VirtQueue and a helper to fetch it, this could be used by
multiqueue supported device.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Si

virtio: add a queue_index to VirtQueue

Add a queue_index to VirtQueue and a helper to fetch it, this could be used by
multiqueue supported device.

Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio: introduce virtio_del_queue()

Some device (such as virtio-net) needs the ability to destroy or re-order the
virtqueues, this patch adds a helper to do this.

Signed-off-by: Jason Wang <jasowa

virtio: introduce virtio_del_queue()

Some device (such as virtio-net) needs the ability to destroy or re-order the
virtqueues, this patch adds a helper to do this.

Signed-off-by: Jason Wang <jasowang>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio-device: refactor virtio-device.

Create the virtio-device which is abstract. All the virtio-device can extend
this class. It also add some functions to virtio-bus.

Signed-off-by: KONRAD Frede

virtio-device: refactor virtio-device.

Create the virtio-device which is abstract. All the virtio-device can extend
this class. It also add some functions to virtio-bus.

Signed-off-by: KONRAD Frederic <fred.konrad@greensocs.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio: backend virtqueue notifier masking

some backends (notably vhost) can mask events
at their source in a way that is more efficient
than masking through kvm.
Specifically
- masking in kvm uses

virtio: backend virtqueue notifier masking

some backends (notably vhost) can mask events
at their source in a way that is more efficient
than masking through kvm.
Specifically
- masking in kvm uses rcu write side so it has high latency
- in kvm on unmask we always send an interrupt
masking at source does not have these issues.

Add such support in virtio.h and use in virtio-pci.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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virtio: don't waste irqfds on control vqs

Pass nvqs to set_guest_notifiers. This makes it possible to
save on irqfds by not allocating one for the control vq
for virtio-net.

Signed-off-by: Michael

virtio: don't waste irqfds on control vqs

Pass nvqs to set_guest_notifiers. This makes it possible to
save on irqfds by not allocating one for the control vq
for virtio-net.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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virtio: make bindings typesafe

Move bindings from opaque to DeviceState.
This gives us better type safety with no performance cost.
Add macros to make future QOM work easier.

Signed-off-by: Michael

virtio: make bindings typesafe

Move bindings from opaque to DeviceState.
This gives us better type safety with no performance cost.
Add macros to make future QOM work easier.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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softmmu: move include files to include/sysemu/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

misc: move include files to include/qemu/

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

net: reorganize headers

Move public headers to include/net, and leave private headers in net/.
Put the virtio headers in include/net/tap.h, removing the multiple copies
that existed. Leave include/

net: reorganize headers

Move public headers to include/net, and leave private headers in net/.
Put the virtio headers in include/net/tap.h, removing the multiple copies
that existed. Leave include/net/tap.h as the interface for NICs, and
net/tap_int.h as the interface for OS-specific parts of the tap backend.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

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virtio: limit avail bytes lookahead

Commit 0d8d7690850eb0cf2b2b60933cf47669a6b6f18f introduced
a regression in virtio-net performance because it looks
into the ring aggressively while we really only

virtio: limit avail bytes lookahead

Commit 0d8d7690850eb0cf2b2b60933cf47669a6b6f18f introduced
a regression in virtio-net performance because it looks
into the ring aggressively while we really only care
about a single packet worth of buffers.
Reported as bugzilla 1066055 in launchpad.

To fix, add parameters limiting lookahead, and
use in virtqueue_avail_bytes.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: Edivaldo de Araujo Pereira <edivaldoapereira@yahoo.com.br>
Tested-by: Edivaldo de Araujo Pereira <edivaldoapereira@yahoo.com.br>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

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virtio-rng: hardware random number generator device

The Linux kernel already has a virtio-rng driver, this is the device
implementation.

When the guest asks for entropy from the virtio hwrng, it pu

virtio-rng: hardware random number generator device

The Linux kernel already has a virtio-rng driver, this is the device
implementation.

When the guest asks for entropy from the virtio hwrng, it puts a buffer
in the vq. We then put entropy into that buffer, and push it back to
the guest.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
---
aliguori: converted to new RngBackend interface
aliguori: remove entropy needed event
aliguori: fix migration

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