event_notifier_get_fd() is not available on windows hosts. Fix this by
moving the calls to event_notifier_get_fd() to the kvm code.
Reported-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Guest and host notifiers are needed by vhost. We use ioeventfds for
the guest notifiers, but need to fall back on qemu injecting interrupts
for the host notifiers.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

On hosts that support ioeventfd, make use of it for host-to-guest
notifications via diagnose 500.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

On virtio reset we must reset the indicator to avoid stale interrupts,
e.g. after a reset.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

'default_backend' isn't always set, but 'rng' is, so use that.

$ ./x86_64-softmmu/qemu-system-x86_64 -object rng-random,id=rng0,filename=/dev/random -device virtio-rng-pci,rng=rng0
Segmentation fault (core dumped)

Regressed with virtio refactoring in 59ccd20a

CC: qemu-stable@nongnu.org
Signed-off-by: NCole Robinson <crobinso@redhat.com>
Acked-by: NAmit Shah <amit.shah@redhat.com>
Acked-by: NMichael S. Tsirkin <mst@redhat.com>
Tested-by: NMichael Roth <mdroth@linux.vnet.ibm.com>
Message-id: bf4505014a0a941dbd3c62068f3cf2c496b69e6a.1370023944.git.crobinso@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Interpretation of the ccws to register (configuration) indicators contained
a thinko: We want to disallow reading from 0, but setting the indicator
pointer to 0 is fine.

Let's fix the handling for CCW_CMD_SET{,_CONF}_IND.

Cc: qemu-stable@nongnu.org
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

This forwards the name and the type of virtio-net-x to fix the bad
behaviour of "info network" command.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1368619970-23892-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The bus name is wrong since the refactoring.

This keeps the behaviour of the command line.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-6-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

The bus name is wrong since the refactoring.

This keeps the behaviour of the command line.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-5-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

When the proxy id is set, this bus takes the name "id.0" which is expected
to be the virtio-device's first bus.

So force this name to "virtio-bus" as it is an internal bus.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1367330931-12994-2-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Signed-off-by: NEd Maste <emaste@freebsd.org>
Signed-off-by: NStefan Hajnoczi <stefanha@redhat.com>

If a guest neglected to register (secondary) indicators but still runs
with notifications enabled, we might end up writing to guest zero;
avoid this by checking for valid indicators and only writing to the
guest and generating an interrupt if indicators have been setup.

Cc: qemu-stable@nongnu.org
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

This remove virtio-bindings, and use class instead.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-6-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This remove the function pointer in VirtIODevice, and use only
VirtioDeviceClass function pointer.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-5-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

virtio_x_bus_new are only used in file scope.
So this make them static.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1366791683-5350-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Here the virtio-rng-ccw is modified for the new API. The device
virtio-rng-pci extends virtio-pci. It creates and connects a virtio-rng-device
during the init. The properties are not changed.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 1366790881-3026-6-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Create virtio-rng-device which extends virtio-device, so it can be connected on
virtio-bus.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 1366790881-3026-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

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

This patch refactors existing virtio-scsi code into VirtIOSCSICommon
in order to allow virtio_scsi_init_common() to be used by both internal
virtio_scsi_init() and external vhost-scsi-pci code.

Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Asias He <asias@redhat.com>
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>

Here the virtio-net-ccw is modified for the new API. The device
virtio-net-ccw extends virtio-ccw-device as before. It creates and
connects a virtio-net-device during the init. The properties are not modified.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1365690602-22729-6-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Create virtio-net-device which extends virtio-device, so it can be connected on
virtio-bus.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1365690602-22729-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

To keep compatibility with the old virtio-balloon-x, add the dynamic properties
to virtio-balloon-pci and virtio-balloon-ccw.

Cc: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1365941220-8114-1-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Here the virtio-serial-ccw is modified for the new API. The device
virtio-serial-ccw extends virtio-ccw-device as before. It creates and
connects a virtio-serial during the init. The properties are not modified.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 1365512016-21944-5-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Create virtio-serial which extends virtio-device, so it can be connected
on virtio-bus.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Acked-by: NAmit Shah <amit.shah@redhat.com>
Message-id: 1365512016-21944-2-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

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: NPaolo Bonzini <pbonzini@redhat.com>

Here the virtio-balloon-ccw is modified for the new API. The device
virtio-balloon-ccw extends virtio-ccw-device as before. It creates and
connects a virtio-balloon during the init. The properties are not modified.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1364377755-15508-4-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Here the virtio-scsi-ccw is modified for the new API. The device
virtio-scsi-ccw extends virtio-ccw-device as before. It creates and
connects a virtio-scsi during the init. The properties are not modified.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1363875320-7985-8-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

host_features field is part of the transport device. So move all the
host_features related properties into transport device.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Tested-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Message-id: 1363875320-7985-4-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Now that virtio-ccw and s390-virtio define all common properties
for virtio-blk, we can switch to using the generic
DEFINE_VIRTIO_BLK_PROPERTIES macro.

CC: Alexander Graf <agraf@suse.de>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

There's no reason why we wouldn't want to make the cache mode
configurable.
Acked-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Here the virtio-ccw-s390 is modified for the new API. The device
virtio-ccw-s390 extends virtio-ccw-device as before. It creates and
connects a virtio-ccw during the init. The properties are not modified.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Reviewed-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1363624648-16906-9-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

This set allow_hotplug for each existing virtio-x-bus, allowing the
refactored devices to be hot pluggable.
Signed-off-by: NKONRAD Frederic <fred.konrad@greensocs.com>
Message-id: 1363624648-16906-3-git-send-email-fred.konrad@greensocs.com
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>

Make virtio-rng devices available for s390-ccw-virtio machines.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

This patch fixes unplugging a virtio-ccw device. We no
longer need to do that in virtio-ccw since common code does now
proper handling.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>

blockdev_mark_auto_del is already called in virtio-blk-exit.
Remove the redundant call.
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: NJens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>

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

set_bit on indicators doesn't go well on 32 bit targets:

note: expected 'long unsigned int *' but argument is of type 'uint64_t *'

Switch to bit shifts instead.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
[agraf: use 1ULL instead]
Signed-off-by: NAlexander Graf <agraf@suse.de>

Changed error codes in the channel subsystem / virtio-ccw code
(-EOPNOTSUPP -> -ENOSYS, -ERESTART -> -EINPROGRESS).

This should hopefully fix building on mingw32.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NAlexander Graf <agraf@suse.de>

Add a new virtio transport that uses channel commands to perform
virtio operations.
Signed-off-by: NCornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: NAlexander Graf <agraf@suse.de>