This remove the corresponding error messages in TCG mode, and allow to
simplify the s390_assign_subch_ioeventfd() function.
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
Signed-off-by: Alexander Graf <agraf@suse.de>
Most notably this includes virtio 1 patches
Still not all devices converted, and not fully spec compliant,
so disabled by default.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc, acpi, virtio
Most notably this includes virtio 1 patches
Still not all devices converted, and not fully spec compliant,
so disabled by default.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu Jun 11 12:53:08 2015 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream: (42 commits)
i386/acpi-build: fix PXB workarounds for unsupported BIOSes
i386/acpi-build: more traditional _UID and _HID for PXB root buses
vhost-scsi: move qdev properties into vhost-scsi.c
virtio-9p-device: move qdev properties into virtio-9p-device.c
virtio-serial-bus: move qdev properties into virtio-serial-bus.c
virtio-rng: move qdev properties into virtio-rng.c
virtio-scsi: move qdev properties into virtio-scsi.c
virtio-net.h: Remove unsed DEFINE_VIRTIO_NET_PROPERTIES
virtio-net: move qdev properties into virtio-net.c
virtio-input: emulated devices [pci]
virtio-input: core code & base class [pci]
pci: add PCI_CLASS_INPUT_*
virtio-pci: fill VirtIOPCIRegions early.
virtio-pci: drop identical virtio_pci_cap
virtio-pci: move cap type to VirtIOPCIRegion
virtio-pci: move virtio_pci_add_mem_cap call to virtio_pci_modern_region_map
virtio-pci: add virtio_pci_modern_region_map()
virtio-pci: add virtio_pci_modern_regions_init()
virtio-pci: add struct VirtIOPCIRegion for virtio-1 regions
virtio-balloon: switch to virtio_add_feature
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
virtio-1 allow setting of the FEATURES_OK status bit to fail if
the negotiated feature bits are inconsistent: let's fail
virtio_set_status() in that case and update virtio-ccw to post an
error to the guest.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
virtio_ccw_{save|load}_config are missing code to save and restore a vdev's
config_vector value. This causes some virtio devices to become disabled
following a migration.
This patch fixes a bug whereby the qmp/hmp balloon command (virsh setmem)
silently fails to update the guest's available memory because the device was not
properly migrated.
This will break compatibility, but vmstate_s390_cpu was bumped from
version 2 to version 4 between v2.3.0 and v2.4.0 without a compat
handler. Furthermore, there is no production environment yet so
migration is fenced anyway between any relevant version of 2.3 and 2.4.
Signed-off-by: Jason J. Herne <jjherne@linux.vnet.ibm.com>
Message-Id: <1433343843-803-1-git-send-email-jjherne@linux.vnet.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
This patch adds 9pfs support for virtio-ccw
by registering the virtio_ccw_9p_info type
and adding associated callbacks.
Signed-off-by: Pierre Morel <pmorel@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch passes error pointer to transport specific device_plugged()
callback. Through this way, device_plugged() can do some transport
specific check and fail. This will be uesd by following patches that
check the number of virtqueues against the transport limitation.
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Nearly all transports have been offering VIRTIO_F_NOTIFY_ON_EMPTY,
s390-virtio being the exception. There's no reason why it shouldn't
offer it as well, though (handling is done in core anyway), so let's
move it to the common virtio features.
While we're changing it anyway, fix the indentation for the
DEFINE_VIRTIO_COMMON_FEATURES macro.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This was copied from virtio-pci, but it doesn't make much sense for
ccw, as it doesn't have to handle the broken implementations this bit
is supposed to deal with. Remove it.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Move host_features from the individual transport proxies into
the virtio device. Transports may continue to add feature bits
during device plugging.
This should it make easier to offer different sets of host features
for virtio-1/transitional support.
Tested-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Memory hot-unplug support for pc, MSI-X
mapping update speedup for virtio-pci,
misc refactorings and bugfixes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
pc, virtio enhancements
Memory hot-unplug support for pc, MSI-X
mapping update speedup for virtio-pci,
misc refactorings and bugfixes.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Mon May 11 08:23:43 2015 BST using RSA key ID D28D5469
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>"
# gpg: aka "Michael S. Tsirkin <mst@redhat.com>"
* remotes/mst/tags/for_upstream: (28 commits)
acpi: update expected files for memory unplug
virtio-scsi: Move DEFINE_VIRTIO_SCSI_FEATURES to virtio-scsi
virtio-net: Move DEFINE_VIRTIO_NET_FEATURES to virtio-net
pci: Merge pci_nic_init() into pci_nic_init_nofail()
acpi: add a missing backslash to the \_SB scope.
qmp-event: add event notification for memory hot unplug error
acpi: add hardware implementation for memory hot unplug
acpi: fix "Memory device control fields" register
acpi: extend aml_field() to support UpdateRule
acpi, mem-hotplug: add unplug cb for memory device
acpi, mem-hotplug: add unplug request cb for memory device
acpi, mem-hotplug: add acpi_memory_slot_status() to get MemStatus
docs: update documentation for memory hot unplug
virtio: coding style tweak
pci: remove hard-coded bar size in msix_init_exclusive_bar()
virtio-pci: speedup MSI-X masking and unmasking
virtio: introduce vector to virtqueues mapping
virtio-ccw: using VIRTIO_NO_VECTOR instead of 0 for invalid virtqueue
monitor: check return value of qemu_find_net_clients_except()
monitor: replace the magic number 255 with MAX_QUEUE_NUM
...
Conflicts:
hw/s390x/s390-virtio-bus.c
[PMM: fixed conflict in s390_virtio_scsi_properties and
s390_virtio_net_properties arrays; since the result of the
two conflicting patches is to empty the property arrays
completely, the conflict resolution is to remove them entirely.]
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Let's move operations that are only valid after the backend has been
realized to a ->device_plugged callback, just as virtio-pci does.
Also reorder setting up the host feature bits to the sequence used
by virtio-pci.
While we're at it, also add a ->device_unplugged callback to stop
ioeventfd, just to be on the safe side.
Reviewed-by: Shannon Zhao <shannon.zhao@linaro.org>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <1429627016-30656-3-git-send-email-cornelia.huck@de.ibm.com>
virtio-ccw has an odd sequence of realizing devices: first the
device-specific relization (net, block, ...), then the generic
realization. It feels less odd to have the generic realization
callback trigger the device-specific realization instead (and this
also matches what virtio-pci does).
One thing to note: We need to defer initializing the cu model in the
sense id data until after the device-specific realization has been
performed, as we need to refer to the virtio device's device_id.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <1429627016-30656-2-git-send-email-cornelia.huck@de.ibm.com>
Sort the various virtio-ccw devices into the same categories as their
virtio-pci counterparts.
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
So far virtio-scsi-device can't expose host features to guest while
using virtio-mmio because it doesn't set DEFINE_VIRTIO_SCSI_FEATURES on
backend or transport.
The host features belong to the backends while virtio-scsi-pci,
virtio-scsi-s390 and virtio-scsi-ccw set the DEFINE_VIRTIO_SCSI_FEATURES
on transports. But they already have the ability to forward property
accesses to the backend child. So if we move the host features to
backends, it doesn't break the backwards compatibility for them and
make host features work while using virtio-mmio.
Move DEFINE_VIRTIO_SCSI_FEATURES to the backend virtio-scsi. The
transports just sync the host features from backends.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
So far virtio-net-device can't expose host features to guest while
using virtio-mmio because it doesn't set DEFINE_VIRTIO_NET_FEATURES on
backend or transport. So the performance is low.
The host features belong to the backend while virtio-net-pci,
virtio-net-s390 and virtio-net-ccw set the DEFINE_VIRTIO_NET_FEATURES
on transports. But they already have the ability to forward property
accesses to the backend child. So if we move the host features to
backends, it doesn't break the backwards compatibility for them and
make host features work while using virtio-mmio.
Here we move DEFINE_VIRTIO_NET_FEATURES to the backend virtio-net. The
transports just sync the host features from backend. Meanwhile move
virtio_net_set_config_size to virtio-net to make sure the config size
is correct and don't expose it.
Signed-off-by: Shannon Zhao <zhaoshenglong@huawei.com>
Signed-off-by: Shannon Zhao <shannon.zhao@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
It's a bad idea to need to use vector 0 for invalid virtqueue. So this patch
changes to using VIRTIO_NO_VECTOR instead.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Alexander Graf <agraf@suse.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Switch all the uses of ld/st*_phys to address_space_ld/st*,
except for those cases where the address space is the CPU's
(ie cs->as). This was done with the following script which
generates a Coccinelle patch.
A few over-80-columns lines in the result were rewrapped by
hand where Coccinelle failed to do the wrapping automatically,
as well as one location where it didn't put a line-continuation
'\' when wrapping lines on a change made to a match inside
a macro definition.
===begin===
#!/bin/sh -e
# Usage:
# ./ldst-phys.spatch.sh > ldst-phys.spatch
# spatch -sp_file ldst-phys.spatch -dir . | sed -e '/^+/s/\t/ /g' > out.patch
# patch -p1 < out.patch
for FN in ub uw_le uw_be l_le l_be q_le q_be uw l q; do
cat <<EOF
@ cpu_matches_ld_${FN} @
expression E1,E2;
identifier as;
@@
ld${FN}_phys(E1->as,E2)
@ other_matches_ld_${FN} depends on !cpu_matches_ld_${FN} @
expression E1,E2;
@@
-ld${FN}_phys(E1,E2)
+address_space_ld${FN}(E1,E2, MEMTXATTRS_UNSPECIFIED, NULL)
EOF
done
for FN in b w_le w_be l_le l_be q_le q_be w l q; do
cat <<EOF
@ cpu_matches_st_${FN} @
expression E1,E2,E3;
identifier as;
@@
st${FN}_phys(E1->as,E2,E3)
@ other_matches_st_${FN} depends on !cpu_matches_st_${FN} @
expression E1,E2,E3;
@@
-st${FN}_phys(E1,E2,E3)
+address_space_st${FN}(E1,E2,E3, MEMTXATTRS_UNSPECIFIED, NULL)
EOF
done
===endit===
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Processing for READ_VQ_CONF needs to check whether the requested queue
value is actually in the supported range and post a channel program
check if not.
Cc: qemu-stable@nongnu.org
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
VIRTIO_PCI_QUEUE_MAX is already too big; a malicious guest would be
able to trigger a write beyond the VirtQueue structure.
Cc: qemu-stable@nongnu.org
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
All fields in structures transmitted by ccws are big endian; assure
we handle them as such.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Message-Id: <1426067871-17693-2-git-send-email-cornelia.huck@de.ibm.com>
The idea is that all other virtio devices are calling this helper
to merge properties of the proxy device. This is the only difference
in between this helper and code in inside virtio_instance_init_common.
The patch should not cause any harm as property list in generic balloon
code is empty.
This also allows to avoid some dummy errors like fixed by this
commit 91ba212088
Author: Gonglei <arei.gonglei@huawei.com>
Date: Tue Sep 30 14:10:35 2014 +0800
virtio-balloon: fix virtio-balloon child refcount in transports
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: Raushaniya Maksudova <rmaksudova@parallels.com>
Revieved-by: Cornelia Huck <cornelia.huck@de.ibm.com>
CC: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Anthony Liguori <aliguori@amazon.com>
CC: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add virtio_{add,clear}_feature helper functions for manipulating a
feature bits variable. This has some benefits over open coding:
- add check that the bit is in a sane range
- make it obvious at a glance what is going on
- have a central point to change when we want to extend feature bits
Convert existing code manipulating features to use the new helpers.
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The only user of this function was virtio-ccw, and it should use
virtio_set_features() like everybody else: We need to make sure
that bad features are masked out properly, which this function did
not do.
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The virtio-rng backend is currently linked twice, once in the proxy
device (e.g. virtio-rng-pci) and once in virtio-rng-device. This causes
a double unref of the backend when the parent device is unplugged.
To fix this, make the proxy device use an alias, similar to what is
already being done for the iothread link.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1414577839-18695-1-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Device models should access their block backends only through the
block-backend.h API. Convert them, and drop direct includes of
inappropriate headers.
Just four uses of BlockDriverState are left:
* The Xen paravirtual block device backend (xen_disk.c) opens images
itself when set up via xenbus, bypassing blockdev.c. I figure it
should go through qmp_blockdev_add() instead.
* Device model "usb-storage" prompts for keys. No other device model
does, and this one probably shouldn't do it, either.
* ide_issue_trim_cb() uses bdrv_aio_discard() instead of
blk_aio_discard() because it fishes its backend out of a BlockAIOCB,
which has only the BlockDriverState.
* PC87312State has an unused BlockDriverState[] member.
The next two commits take care of the latter two.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
by making bootindex a writable qom property.
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Merge remote-tracking branch 'remotes/kraxel/tags/pull-bootindex-20141015-1' into staging
allow changing bootorder via monitor at runtime,
by making bootindex a writable qom property.
* remotes/kraxel/tags/pull-bootindex-20141015-1: (34 commits)
bootindex: change fprintf to error_report
bootindex: delete bootindex when device is removed
bootindex: move calling add_boot_device_patch to bootindex setter function
ide: add calling add_boot_device_patch in bootindex setter function
nvma: ide: add bootindex to qom property
usb-storage: add bootindex to qom property
virtio-blk: alias bootindex property explicitly for virt-blk-pci/ccw/s390
block: remove bootindex property from qdev to qom
virtio-blk: add bootindex to qom property
ide: add bootindex to qom property
scsi: add bootindex to qom property
isa-fdc: remove bootindexA/B property from qdev to qom
redirect: remove bootindex property from qdev to qom
vfio: remove bootindex property from qdev to qom
pci-assign: remove bootindex property from qdev to qom
host-libusb: remove bootindex property from qdev to qom
virtio-net: alias bootindex property explicitly for virt-net-pci/ccw/s390
net: remove bootindex property from qdev to qom
usb-net: add bootindex to qom property
vmxnet3: add bootindex to qom property
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Since the "bootindex" property is a QOM property and not a qdev property
now, we must alias it explicitly for virtio-blk-pci, as well as CCW and
s390-virtio.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Since the "bootindex" property is a QOM property and not a qdev property
now, we must alias it explicitly for virtio-net-pci, as well as CCW and
s390-virtio.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
The vhost-scsi-ccw backend is of type VHostSCSICcw, not VirtIOSCSICcw.
This fixes a segfault when invoking
qemu-system-s390x -device vhost-scsi-ccw,?
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Similar to this property in virtio-blk for dataplane, add it as a QOM
link in virtio-scsi and an alias in virtio-scsi-pci and virtio-scsi-ccw,
in order to assign an iothread to the device.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
For better code sharing, add a helper function that handles
reference counting of the virtio backend for virtio proxy devices.
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
object_initialize() leaves the object with a refcount of 1.
object_property_add_child() adds its own reference which is dropped
again when the property is deleted.
The upshot of this is that we always have a refcount >= 1. Upon hot
unplug the virtio-balloon child is not finalized!
Drop our reference after the child property has been added to the
parent.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
object_initialize() leaves the object with a refcount of 1.
object_property_add_child() adds its own reference which is dropped
again when the property is deleted.
The upshot of this is that we always have a refcount >= 1. Upon hot
unplug the virtio-rng child is not finalized!
Drop our reference after the child property has been added to the
parent.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
virtio-rng-{pci, s390, ccw} all duplicate the
qdev properties of their VirtIORNG child.
This approach does not work well with string or pointer
properties since we must be careful about leaking or
double-freeing them.
Use the QOM alias property to forward property accesses to the
VirtIORNG child. This way no duplication is necessary.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
object_initialize() leaves the object with a refcount of 1.
object_property_add_child() adds its own reference which is dropped
again when the property is deleted.
The upshot of this is that we always have a refcount >= 1. Upon hot
unplug the virtio-serial child is not finalized!
Drop our reference after the child property has been added to the
parent.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
virtio-serial-{pci, s390, ccw} all duplicate the
qdev properties of their VirtIOSerial child.
This approach does not work well with string or pointer
properties since we must be careful about leaking or
double-freeing them.
Use the QOM alias property to forward property accesses to the
VirtIOSerial child. This way no duplication is necessary.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
object_initialize() leaves the object with a refcount of 1.
object_property_add_child() adds its own reference which is dropped
again when the property is deleted.
The upshot of this is that we always have a refcount >= 1. Upon hot
unplug the virtio-scsi/vhost-scsi child is not finalized!
Drop our reference after the child property has been added to the
parent.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
{virtio, vhost}-scsi-{pci, s390, ccw} all duplicate the
qdev properties of their VirtIOSCSI/VHostSCSI child.
This approach does not work well with string or pointer
properties since we must be careful about leaking or
double-freeing them.
Use the QOM alias property to forward property accesses to the
VirtIOSCSI/VHostSCSI child. This way no duplication is necessary.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
object_initialize() leaves the object with a refcount of 1.
object_property_add_child() adds its own reference which is dropped
again when the property is deleted.
The upshot of this is that we always have a refcount >= 1. Upon hot
unplug the virtio-net child is not finalized!
Drop our reference after the child property has been added to the
parent.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
virtio-net-pci, virtio-net-s390, and virtio-net-ccw all duplicate the
qdev properties of their VirtIONet child. This approach does not work
well with string or pointer properties since we must be careful about
leaking or double-freeing them.
Use the QOM alias property to forward property accesses to the
VirtIONet child. This way no duplication is necessary.
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The two common virtio features can be defined per bus, so move all
into bus class device to make code more clean.
As discussed with cornelia, s390-virtio-blk doesn't support
the two features at all, so keep s390-virtio as it.
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> #for s390 ccw
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
MST: rebase and resolve conflicts
Up until now -device virtio-blk-pci,x-iothread=<id> was used to assign
an IOThread. This was a temporary solution while we cleaned up QOM link
properties.
This patch switches over to a QOM link property since it is now possible
to restrict the setter to unrealized instances and automatically unref
the IOThread when the virtio-blk-pci device is freed.
Since the "iothread" property is a QOM property and not a qdev property,
we must alias it explicitly for virtio-blk-pci, as well as CCW and
s390-virtio.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
object_initialize() leaves the object with a refcount of 1.
object_property_add_child() adds its own reference which is dropped
again when the property is deleted.
The upshot of this is that we always have a refcount >= 1. Upon hot
unplug the virtio-blk child is not finalized!
Drop our reference after the child property has been added to the
parent.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
virtio-blk-pci, virtio-blk-s390, and virtio-blk-ccw all duplicate the
qdev properties of their VirtIOBlock child. This approach does not work
well with string or pointer properties since we must be careful about
leaking or double-freeing them.
Use the QOM alias property to forward property accesses to the
VirtIOBlock child. This way no duplication is necessary.
Remember to stop calling virtio_blk_set_conf() so that we don't clobber
the values already set on the VirtIOBlock instance.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
