Max Reitz [Wed, 8 Oct 2014 17:55:15 +0000 (19:55 +0200)]
nbd: Fix filename generation
Export names may be used with nbd+unix, too, fix nbd_refresh_filename()
accordingly. Also, for nbd+tcp, the documented path schema is
"nbd://host[:port]/export", so use it. Furthermore, as can be seen from
that schema, the port is optional.
That makes six single cases for how the filename can be formatted; it is
not easy to generalize these cases without the resulting statement being
completely unreadable, thus there is simply one snprintf() per case.
Finally, taking the options from BDRVNBDState::socket_opts is wrong,
because those will not contain the export name. Just use
BlockDriverState::options instead.
Tony Breeds [Thu, 25 Sep 2014 23:14:12 +0000 (09:14 +1000)]
block/raw-posix: use seek_hole ahead of fiemap
try_fiemap() uses FIEMAP_FLAG_SYNC which has a significant performance
impact.
Prefer seek_hole() over fiemap() to avoid this impact where possible.
seek_hole is more widely used and, arguably, has potential to be
optimised in the kernel.
Zhang Haoyu [Sat, 11 Oct 2014 08:35:43 +0000 (16:35 +0800)]
qcow2: fix leak of Qcow2DiscardRegion in update_refcount_discard
When the Qcow2DiscardRegion is adjacent to another one referenced by "d",
free this Qcow2DiscardRegion metadata referenced by "p" after
it was removed from s->discards queue.
Peter Maydell [Wed, 15 Oct 2014 20:03:28 +0000 (21:03 +0100)]
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
...
Stefan Hajnoczi [Wed, 15 Oct 2014 12:29:30 +0000 (14:29 +0200)]
glib: add compatibility interface for g_get_monotonic_time()
This patch fixes compilation errors when building against glib <2.28.0
due to the missing g_get_monotonic_time() function.
The compilation error in tests/libqos/virtio.c was introduced in commit 70556264a89a268efba1d7e8e341adcdd7881eb4 ("libqos: use microseconds
instead of iterations for virtio timeout").
Add a simple g_get_monotonic_time() implementation to glib-compat.h
based on code from vhost-user-test.c.
Signed-off-by: Stefan Hajnoczi <[email protected]>
[Igor: add G_TIME_SPAN_SECOND, include glib-compat.h in libqtest.h] Signed-off-by: Igor Mammedov <[email protected]> Signed-off-by: Peter Maydell <[email protected]>
# gpg: Signature made Wed 15 Oct 2014 09:21:54 BST using RSA key ID 5872D723
# gpg: Can't check signature: public key not found
* remotes/juanquintela/tags/migration/20141015:
migration: catch unknown flag combinations in ram_load
qemu-file: Move stdio implementation to qemu-file-stdio.c
qemu-file: Move unix and socket implementations to qemu-file-unix.c
qemu-file: Use qemu_file_is_writable() on stdio_fclose()
qemu-file: Make qemu_file_is_writable() non-static
qemu-file: Add copyright header to qemu-file.c
vmstate: Allow dynamic allocation for VBUFFER during migration
block/migration: Disable cache invalidate for incoming migration
Tests: QEMUSizedBuffer/QEMUBuffer
QEMUSizedBuffer based QEMUFile
Peter Maydell [Fri, 10 Oct 2014 19:44:29 +0000 (20:44 +0100)]
hw/display/vga: Remove unused arrays dmask4 and dmask16
Following cleanup of the vga device code in commit d2e043a8041,
the arrays dmask4 and dmask16 are now unused. gcc doesn't warn
about this, but clang does; remove them.
Add a qemu extented register range to the standard vga mmio bar.
Right nowe there are two registers: One readonly register returning the
size of the region (so we can easily add more registers there if needed)
and one endian control register, so guests (especially ppc) can flip
the framebuffer endianness as they need it.
Gonglei [Tue, 7 Oct 2014 08:00:35 +0000 (16:00 +0800)]
ide: add calling add_boot_device_patch in bootindex setter function
On this way, we can assure the new bootindex take effect
during vm rebooting. Meanwhile set the initial value of
bootindex to -1.
Because ide devcies's unit property maybe
do not initialize when set_bootindex function is called,
so that we don't know its suffix. So we have to save the
call add_boot_device_path() on ide realize/init function.
When we want to change bootindex during vm rebooting, we
can call it in setter function.
Gonglei [Tue, 7 Oct 2014 08:00:34 +0000 (16:00 +0800)]
nvma: ide: add bootindex to qom property
At present, nvma cannot boot. However, it provides already
a bootindex property, so change bootindex to qom for nvma
device, but not call add_boot_device_path.
Gonglei [Tue, 7 Oct 2014 08:00:33 +0000 (16:00 +0800)]
usb-storage: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Because usb-storage rely on scsi-disk which is created
in usb_msg_realize_storage(), so we should store the SCSIDevice
pointer in MSDState struct. Only in this way, we can change
the global boot_order_list when we want to change the bootindex
during vm rebooting by calling object_property_set_int(Object(SCSIDevice),).
Gonglei [Tue, 7 Oct 2014 08:00:32 +0000 (16:00 +0800)]
virtio-blk: alias bootindex property explicitly for virt-blk-pci/ccw/s390
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.
Gonglei [Tue, 7 Oct 2014 08:00:31 +0000 (16:00 +0800)]
block: remove bootindex property from qdev to qom
Remove bootindex form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:30 +0000 (16:00 +0800)]
virtio-blk: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:29 +0000 (16:00 +0800)]
ide: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:28 +0000 (16:00 +0800)]
scsi: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:27 +0000 (16:00 +0800)]
isa-fdc: remove bootindexA/B property from qdev to qom
Remove bootindexA/B form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:26 +0000 (16:00 +0800)]
redirect: remove bootindex property from qdev to qom
Remove bootindex form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:25 +0000 (16:00 +0800)]
vfio: remove bootindex property from qdev to qom
Remove bootindex form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:24 +0000 (16:00 +0800)]
pci-assign: remove bootindex property from qdev to qom
Remove bootindex form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:23 +0000 (16:00 +0800)]
host-libusb: remove bootindex property from qdev to qom
Remove bootindex form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:22 +0000 (16:00 +0800)]
virtio-net: alias bootindex property explicitly for virt-net-pci/ccw/s390
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.
Gonglei [Tue, 7 Oct 2014 08:00:21 +0000 (16:00 +0800)]
net: remove bootindex property from qdev to qom
Remove bootindex form qdev property to qom, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:20 +0000 (16:00 +0800)]
usb-net: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:19 +0000 (16:00 +0800)]
vmxnet3: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:18 +0000 (16:00 +0800)]
spapr_lian: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:17 +0000 (16:00 +0800)]
rtl8139: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:16 +0000 (16:00 +0800)]
pcnet: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:15 +0000 (16:00 +0800)]
ne2000: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
At present, isa_ne2000 device does not support to boot
os, so we register two seprate qom getter/setter functions.
Gonglei [Tue, 7 Oct 2014 08:00:14 +0000 (16:00 +0800)]
eepro100: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:13 +0000 (16:00 +0800)]
e1000: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:12 +0000 (16:00 +0800)]
virtio-net: add bootindex to qom property
Add a qom property with the same name 'bootindex',
when we remove it form qdev property, things will
continue to work just fine, and we can use qom features
which are not supported by qdev property.
Gonglei [Tue, 7 Oct 2014 08:00:11 +0000 (16:00 +0800)]
bootindex: add a setter/getter functions wrapper for bootindex property
when we remove bootindex form qdev.property to qom.property,
we can use those functions set/get bootindex property for all
correlative devices. Meanwhile set the initial value of
bootindex to -1.
Gonglei [Tue, 7 Oct 2014 08:00:09 +0000 (16:00 +0800)]
bootindex: rework add_boot_device_path function
Add the function of updating bootindex about fw_boot_order list
in add_boot_device_path(). We should delete the old one if a
device has existed in global fw_boot_order list.
Gonglei [Tue, 7 Oct 2014 08:00:08 +0000 (16:00 +0800)]
fw_cfg: add fw_cfg_machine_reset function
We must assure that the changed bootindex can take effect
when guest is rebooted. So we introduce fw_cfg_machine_reset(),
which change the fw_cfg file's bootindex data using the new
global fw_boot_order list.
Gonglei [Tue, 7 Oct 2014 08:00:07 +0000 (16:00 +0800)]
bootindex: add del_boot_device_path function
Introduce del_boot_device_path() to clean up fw_cfg content when
hot-unplugging a device that refers to a bootindex or update a
existent devcie's bootindex.
Peter Maydell [Wed, 15 Oct 2014 07:12:53 +0000 (08:12 +0100)]
Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging
QOM infrastructure fixes and device conversions
* GPIO conversion to QOM, continued
* Device property description support
* QTest cases for hotplug
* Hotplug handler conversion
# gpg: Signature made Wed 15 Oct 2014 04:05:17 BST using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <[email protected]>"
# gpg: aka "Andreas Färber <[email protected]>"
* remotes/afaerber/tags/qom-devices-for-peter: (47 commits)
qdev: Drop legacy_name from qdev properties
qmp: Print descriptions of object properties
qdev: Set the object property's description to the qdev property's.
qom: Add description field in ObjectProperty struct
qdev: Add description field in PropertyInfo struct
qdev: device_del: Search for to be unplugged device in 'peripheral' container
qdev: HotplugHandler: Add support for unplugging BUS-less devices
qdev: Drop legacy hotplug fields/methods
usb: Convert usb devices to hotplug handler API
usb: Convert usb-ccid to hotplug handler API
usb-storage: Drop not needed "allow_hotplug = 0"
usb-bot: Drop not needed "allow_hotplug = 0"
usb-bot: Mark device as non hotpluggable
scsi: Cleanup not used anymore SCSIBusInfo{hotplug, hot_unplug} fields
scsi: Convert virtio-scsi HBA to hotplug handler API
scsi: Convert pvscsi HBA to hotplug handler API
scsi: Set SCSI BUS itself as default HotplugHandler
s390x: Convert virtio-ccw to hotplug handler API
s390x: Convert s390-virtio to hotplug handler API
s390x: Drop not used allow_hotplug in event-facility
...
Gonglei [Tue, 7 Oct 2014 06:33:23 +0000 (14:33 +0800)]
qmp: Print descriptions of object properties
Add a new "description" field to DevicePropertyInfo.
The descriptions can serve as documentation in the code,
and they can be used to provide better help. For example:
virtio-blk-pci.iothread=link<iothread>
virtio-blk-pci.x-data-plane=bool (on/off)
virtio-blk-pci.scsi=bool (on/off)
virtio-blk-pci.config-wce=bool (on/off)
virtio-blk-pci.serial=str
virtio-blk-pci.secs=uint32
virtio-blk-pci.heads=uint32
virtio-blk-pci.cyls=uint32
virtio-blk-pci.discard_granularity=uint32
virtio-blk-pci.bootindex=int32
virtio-blk-pci.opt_io_size=uint32
virtio-blk-pci.min_io_size=uint16
virtio-blk-pci.physical_block_size=uint16 (A power of two between 512 and 32768)
virtio-blk-pci.logical_block_size=uint16 (A power of two between 512 and 32768)
virtio-blk-pci.drive=str (ID of a drive to use as a backend)
virtio-blk-pci.virtio-backend=child<virtio-blk-device>
virtio-blk-pci.command_serr_enable=bool (on/off)
virtio-blk-pci.multifunction=bool (on/off)
virtio-blk-pci.rombar=uint32
virtio-blk-pci.romfile=str
virtio-blk-pci.addr=int32 (Slot and optional function number, example: 06.0 or 06)
virtio-blk-pci.event_idx=bool (on/off)
virtio-blk-pci.indirect_desc=bool (on/off)
virtio-blk-pci.vectors=uint32
virtio-blk-pci.ioeventfd=bool (on/off)
virtio-blk-pci.class=uint32
Igor Mammedov [Thu, 2 Oct 2014 10:08:45 +0000 (10:08 +0000)]
qdev: device_del: Search for to be unplugged device in 'peripheral' container
device_add puts every device with 'id' inside of 'peripheral'
container using id's value as the last component name.
Use it by replacing recursive search on sysbus with path
lookup in 'peripheral' container, which could handle both
BUS and BUS-less device cases.
Igor Mammedov [Fri, 26 Sep 2014 09:28:37 +0000 (09:28 +0000)]
usb-storage: Drop not needed "allow_hotplug = 0"
Drop useless hack that disables hotplug on bus, after backend
storage was added to it, by setting "allow_hotplug = 0". Even
if bus is hotpluggable, it won't be possible to add another
SCSI device to bus since its realize will fail early with
error "no free target" in scsi_qdev_realize() method.
Igor Mammedov [Fri, 26 Sep 2014 09:28:36 +0000 (09:28 +0000)]
usb-bot: Drop not needed "allow_hotplug = 0"
Drop useless hack that disables hotplug on bus by setting
"allow_hotplug = 0". Even if bus is hotpluggable, It won't
be possible to add another SCSI device to bus since its
realization will fail early with error "no free target"
in scsi_qdev_realize() method.
Igor Mammedov [Fri, 26 Sep 2014 09:28:35 +0000 (09:28 +0000)]
usb-bot: Mark device as non hotpluggable
usb-bot creates SCSI bus and immediately makes it
non hotpluggable which was making not possible to
hotplug usb-bot since QEMU would abort at
bus_add_child(scsi-hd) time when usb-bot is
realized.
Mark usb-bot as not hotpluggable so that attempt
to hotplug it would error out even before it gets
to device initialization point.
Igor Mammedov [Fri, 26 Sep 2014 09:28:28 +0000 (09:28 +0000)]
s390x: Drop not used allow_hotplug in event-facility
s390-sclp-event-facility creates s390-sclp-events-bus
and immediately sets its allow_hotplug field to 0,
which is NOP since it's already 0 by default.
Also since BUS is not hotpluggable, it's not possible
to call SCLP_EVENT{ DeviceClass::unplug } callback
from qdev_unplug() making this unreachable code,
so drop it as well.
Igor Mammedov [Fri, 26 Sep 2014 09:28:27 +0000 (09:28 +0000)]
virtio-mmio: Drop useless bus->allow_hotplug = 0
Bus by default is not hotpluggable.
virtio-mmio-bus and its parent types do not set allow_hotplug
anywhere explicitly, so remove not needed field access
and wrapper along with it.
Igor Mammedov [Fri, 26 Sep 2014 09:28:25 +0000 (09:28 +0000)]
virtio-pci: Drop BusState::allow_hotplug
virtio-pci-bus is an internal object of composite
virtio-pci device and it doesn't participate in
-device/device_add hotplug flow, and since it's
not required by bus_add_child() that BUS must
be hotpluggable to be able to add child at runtime,
it's possible to drop not needed 'allow_hotplug'
field.
Igor Mammedov [Fri, 26 Sep 2014 09:28:23 +0000 (09:28 +0000)]
qdev: Drop hotplug check from bus_add_child()
Check is too restrictive and does not allow
to add children to just created bus during hotplug
when the bus is part of composite device.
Removing check from bus_add_child() doesn't affect
devices creatable with device_add/del commands since
they have a similar builtin check and patch will
allow to create complex composite devices during
hotplug.
Igor Mammedov [Fri, 26 Sep 2014 09:28:22 +0000 (09:28 +0000)]
qdev: Add wrapper to set BUS as HotplugHandler
To be used for conversion of SCSI and USB devices,
and would allow to make every HBA/USB host switch
to HotplugHandler API without touching each controller
explicitly.
Igor Mammedov [Fri, 26 Sep 2014 09:28:21 +0000 (09:28 +0000)]
qdev: Add simple/generic unplug callback for HotplugHandler
It will be used in shallow conversion from legacy hotplug
mechanism and eventually replace all the uses of old mechanism
DeviceClass::unplug = qdev_simple_unplug_cb()
Igor Mammedov [Fri, 26 Sep 2014 09:28:20 +0000 (09:28 +0000)]
qdev: HotplugHandler: Provide unplug callback
It is to be called for actual device removal and
will allow to separate request and removal handling
phases of x86-CPU devices and also it's a handler
to be called for synchronously removable devices.
Igor Mammedov [Fri, 26 Sep 2014 09:28:19 +0000 (09:28 +0000)]
qdev: HotplugHandler: Rename unplug callback to unplug_request
'HotplugHandler.unplug' callback is currently used as async
call to issue unplug request for device that implements it.
Renaming 'unplug' callback to 'unplug_request' should help to
avoid confusion about what callback does and would allow to
introduce 'unplug' callback that would perform actual device
removal when guest is ready for it.
Igor Mammedov [Fri, 26 Sep 2014 09:28:18 +0000 (09:28 +0000)]
qdev: do not allow to instantiate non hotpluggable device with device_add
It will allow explicitly mark device as not hotpluggable and
avoid its creation with following error at realize time
and destroying it afterwards anyway. Instead of it will
error out even before instance of device is created.
Igor Mammedov [Fri, 26 Sep 2014 09:28:17 +0000 (09:28 +0000)]
Access BusState::allow_hotplug using wraper qbus_is_hotpluggable()
It would allow to transparently switch detection whether Bus
is hotpluggable from allow_hotplug field to hotplug_handler
link and to drop allow_hotplug field once all users are
converted to hotplug handler API.
Igor Mammedov [Fri, 26 Sep 2014 09:28:16 +0000 (09:28 +0000)]
tests: usb: usb-uas hotplug test
checks that it's possible to hotplug usb-uas HBA and
then if it's possible to hot(un)plug scsi-disk to it.
Thest basically covers hot(un)plug on dummy HBAs
without means of hot(un)plug notification of the guest.
Igor Mammedov [Fri, 26 Sep 2014 09:28:15 +0000 (09:28 +0000)]
tests: usb: usb-storage hotplug test
usb-storage is different from usual usb devices
in that it uses a child SCSI bus for underlying storage.
This commit verifies that the SCSI bus is hotpluggable, as
hotplug operation wouldn't succeed without it.
object_property_add_alias() is called at some
places at present. And its parameter errp may not NULL,
such as
object_property_add_alias(obj, "iothread", OBJECT(&dev->vdev),"iothread",
&error_abort);
This patch add error handler for security.
Eduardo Habkost [Wed, 1 Oct 2014 20:34:37 +0000 (17:34 -0300)]
qemu-file: Move stdio implementation to qemu-file-stdio.c
Separate the QEMUFile interface from the stdio-specific implementation,
to reduce dependencies from code using QEMUFile.
The code that is being moved is similar to the one that was on savevm.c before
it was moved in commit 093c455a8c6d8f715eabd8c8d346f08f17d686ec, except for
some changes done by Markus, Juan, and myself. So, I am using the copyright and
license header from savevm.c, but CCing Juan and Markus so they can review the
copyright/license header.
Eduardo Habkost [Wed, 1 Oct 2014 20:34:36 +0000 (17:34 -0300)]
qemu-file: Move unix and socket implementations to qemu-file-unix.c
Separate the QEMUFile interface from the implementation, to reduce
dependencies from code using QEMUFile.
All the code that is being moved to the new file is exactly the same
code that was on savevm.c (moved by commit 093c455a8c6d8f715eabd8c8d346f08f17d686ec), so I am using the copyright
and license header from savevm.c for the new file.
Eduardo Habkost [Wed, 1 Oct 2014 17:47:33 +0000 (14:47 -0300)]
qemu-file: Add copyright header to qemu-file.c
The person who created qemu-file.c (me, on commit 093c455a8c6d8f715eabd8c8d346f08f17d686ec) didn't add a copyright/license
header to the file, even though the whole code was copied from savevm.c
(which had a copyright/license header).
To correct this, copy the copyright information and license from
savevm.c, that's where the original code came from.
Luckily, very few changes were made on qemu-file.c after it was created.
All the authors who touched the code are being CCed, so they can confirm
if they are OK with the copyright/license information being added.
block/migration: Disable cache invalidate for incoming migration
When migrated using libvirt with "--copy-storage-all", at the end of
migration there is race between NBD mirroring task trying to do flush
and migration completion, both end up invalidating cache. Since qcow2
driver does not handle this situation very well, random crashes happen.
This disables the BDRV_O_INCOMING flag for the block device being migrated
once the cache has been invalidated.
Modify some of tests/test-vmstate.c to use the in memory file based
on QEMUSizedBuffer to provide basic testing of QEMUSizedBuffer and
the associated memory backed QEMUFile type.
Only some of the tests are changed so that the fd backed QEMUFile is
still tested.
projects / qemu.git / log