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Notice that the live migration users never unregister, so no problem
about freeing the ops structure.
Signed-off-by: Juan Quintela <quintela@redhat.com>
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This would make easier to add more operations in the next patches.
Signed-off-by: Juan Quintela <quintela@redhat.com>
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This reverts commit 504972922da9b562f15e13544d3efca84b46b8fd which broke the
build for ARM.
I don't think this change is necessary. If I'm wrong, please recommit this
changeset with an appropriate fix for ARM.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: malc <av1474@comtv.ru>
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Added (msi|msix)_set_message() function for whoever might
want to use them.
Currently msi_notify()/msix_notify() write to these vectors to
signal the guest about an interrupt so the correct values have to
written there by the guest or QEMU.
For example, POWER guest never initializes MSI/MSIX vectors, instead
it uses RTAS hypercalls. So in order to support MSIX for virtio-pci on
POWER we have to initialize MSI/MSIX message from QEMU.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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This per-device notifier shall be triggered by any interrupt router
along the path of a device's legacy interrupt signal on routing changes.
For simplicity reasons and as this is a slow path anyway, no further
details on the routing changes are provided. Instead, the callback is
expected to use pci_device_route_intx_to_irq to check the effect of the
change.
Will be used by KVM PCI device assignment and VFIO.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Device assigned on KVM needs to know the mode
(enabled/inverted/disabled) and the IRQ number that a given device
triggers in the attached interrupt controller.
Add a PCI IRQ path discovery function that walks from a given device to
the host bridge, and gets this information. For
this purpose, a host bridge callback function is introduced:
route_intx_to_irq. It is so far only implemented by the PIIX3, other
host bridges can be added later on as required.
Will be used for KVM PCI device assignment and VFIO.
Based on patch by Jan Kiszka, with minor tweaks.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Support new tracelog format for multiple arguments and strings.
Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Existing simpletrace backend allows to trace at max 6 args and does not
support strings. This newer tracelog format gets rid of fixed size records
and therefore allows to trace variable number of args including strings.
Sample trace with strings:
v9fs_version 0.000 tag=0xffff id=0x64 msize=0x2000 version=9P2000.L
v9fs_version_return 6.705 tag=0xffff id=0x64 msize=0x2000 version=9P2000.L
Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Going forward with simpletrace v2 variable size trace records, we cannot
have a generic function to print trace event info and therefore this
interface becomes invalid.
As per Stefan Hajnoczi:
"This command is only available from the human monitor. It's not very
useful because it historically hasn't been able to pretty-print events
or show them in the right order (we use a ringbuffer but it prints
them out from index 0).
Therefore, I don't think we're under any obligation to keep this
command around. No one has complained about it's limitations - I
think this is a sign that no one has used it. I'd be okay with a
patch that removes it."
Ref: http://lists.gnu.org/archive/html/qemu-devel/2012-01/msg01268.html
Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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It is convenient for debug to be able to switch on/off some events easily.
The only possibility now is to remove event name from the file completely
and type it again when we want it back.
The patch adds '#' symbol handling as a comment specifier.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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* kwolf/for-anthony: (41 commits)
fdc-test: Clean up a bit
fdc-test: introduce test_relative_seek
fdc: fix relative seek
qemu-iotests: Valgrind support
coroutine-ucontext: Help valgrind understand coroutines
qemu-io: Fix memory leaks
hw/block-common: Factor out fall back to legacy -drive cyls=...
blockdev: Don't limit DriveInfo serial to 20 characters
hw/block-common: Factor out fall back to legacy -drive serial=...
hw/block-common: Move BlockConf & friends from block.h
Relax IDE CHS limits from 16383,16,63 to 65535,16,255
blockdev: Drop redundant CHS validation for if=ide
hd-geometry: Compute BIOS CHS translation in one place
qtest: Test we don't put hard disk info into CMOS for a CD-ROM
ide pc: Put hard disk info into CMOS only for hard disks
block: Geometry and translation hints are now useless, purge them
qtest: Cover qdev property for BIOS CHS translation
ide: qdev property for BIOS CHS translation
qdev: New property type chs-translation
qdev: Collect private helpers in one place
...
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* qemu-kvm/uq/master:
virtio: move common irqfd handling out of virtio-pci
virtio: move common ioeventfd handling out of virtio-pci
event_notifier: add event_notifier_set_handler
memory: pass EventNotifier, not eventfd
ivshmem: wrap ivshmem_del_eventfd loops with transaction
ivshmem: use EventNotifier and memory API
event_notifier: add event_notifier_init_fd
event_notifier: remove event_notifier_test
event_notifier: add event_notifier_set
apic: Defer interrupt updates to VCPU thread
apic: Reevaluate pending interrupts on LVT_LINT0 changes
apic: Resolve potential endless loop around apic_update_irq
kvm: expose tsc deadline timer feature to guest
kvm_pv_eoi: add flag support
kvm: Don't abort on kvm_irqchip_add_msi_route()
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* qmp/queue/qmp:
qapi: Convert getfd and closefd
qapi: input_type_enum(): fix error message
qmp: dump-guest-memory: improve schema doc
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* kraxel/bios.2:
Add vgabios build rules to roms/Makefile
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* kraxel/usb.57:
ehci: improve expire time calculation
ehci: implement Interrupt Threshold Control support
ehci: raise irq in the frame timer
uhci: initialize expire_time when loading v1 vmstate
usb: add usb attached scsi emulation
scsi: add free_request callback
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34bb443ee74df3780d86044dbf6492eb798c5807 broke the build but in a subtle way.
The patch on the ML was actually based on the 1.1.1 stable branch
(accidentally). When I merged it from the ML, the fuzzing got resolved in a
such a way that the newly introduced Makefile dependency on GENERATED_HEADERS
got lost (that was not in 1.1.1).
The dist bits also got duplicated (but this is just cosmetic).
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Let's stop screwing up releases by having a script do the work that Anthony's
fat fingers can't seem to get right.
Cc: Michael Roth <mdroth@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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The description for set_password and expire_password commands is
incomplete. This patch fixes the man page that is being generated
to match the real behaviour of these functions.
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This patch improves the description of -nodefaults QEMU command line
option by adding more information what is being disabled using this
command.
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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This is the patch to improve description for -{read|write}config
functions.
Signed-off-by: Michal Novotny <minovotn@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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qdev_prop_set_string uses object_property_set_str, which takes
a const char * for the value. Lets propagate the constness
into qdev_prop_set_string.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Although the rule also allows 'an' for historical reasons,
'a' is more common because 'h' is pronounced.
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
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Readability of the test code has suffered as the test case evolved. This
should improve it a bit again.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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check -valgrind wraps all qemu-io calls with valgrind. This makes it a
bit easier to debug problems that occur somewhere deep in a test case.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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valgrind tends to get confused and report false positives when you
switch stacks and don't tell it about it.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
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Almost all callers of create_iovec() forgot to destroy the qiov when the
request has completed.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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All current users (IDE, SCSI and virtio-blk) happen to share this 20
characters limit. Still, it should be left to device models. They
already enforce their limits. They have to, as the DriveInfo limit
only affects legacy -drive serial=..., not the qdev properties.
usb-storage, which doesn't limit serial number length, also uses
DriveInfo for -usbdevice. But that doesn't provide access to
DriveInfo serial.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This stuff doesn't belong to block layer, and was put there only
because a better home didn't exist then. Now it does.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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New limits straight from ATA4 6.2 Register delivered data transfer
command sector addressing.
I figure the old sector limit 63 was blindly copied from the BIOS
int 13 limit. Doesn't apply to the hardware. No idea where the old
cylinder limit comes from.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Leave it to ide_init_drive().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Currently, it is split between hd_geometry_guess() and
pc_cmos_init_late(). Confusing. info qtree shows the result of the
former. Also confusing.
Fold the part done in pc_cmos_init_late() into hd_geometry_guess().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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In particular, don't set disk type and geometry when a CD-ROM on bus
ide.0 has media during CMOS initialization.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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There are two producers of these hints: drive_init() on behalf of
-drive, and hd_geometry_guess().
The only consumer of the hint is hd_geometry_guess().
The callers of hd_geometry_guess() call it only when drive_init()
didn't set the hints. Therefore, drive_init()'s hints are never used.
Thus, hd_geometry_guess() only ever sees hints it produced itself in a
prior call. Only the first call computes something, subsequent calls
just repeat the first call's results. However, hd_geometry_guess() is
never called more than once: the device models don't, and the block
device is destroyed on unplug. Thus, dropping the repeat feature
doesn't break anything now.
If a block device wasn't destroyed on unplug and could be reused with
a new device, then repeating old results would be wrong. Thus,
dropping the repeat feature prevents future breakage.
This renders the hints unused. Purge them from the block layer.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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This isn't quite orthodox. CHS translation is firmware configuration,
communicated via the RTC's CMOS RAM, not a property of the disk. But
it's best to treat it just like geometry anyway.
Maintain backward compatibility exactly like for geometry: fall back
to DriveInfo's translation, set with -drive trans=...
Bonus: info qtree now shows the translation. Except when it shows
"auto": that's resolved by pc_cmos_init_late(). To be addressed
shortly.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Just code motion, with one long line wrapped to keep checkpatch.pl
happy.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Geometry needs to be qdev properties, because it belongs to the
disk's guest part.
Maintain backward compatibility exactly like for serial: fall back to
DriveInfo's geometry, set with -drive cyls=...
Do this only for ide-hd. ide-drive is legacy. ide-cd doesn't have a
geometry.
Bonus: info qtree now shows the geometry.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Geometry needs to be qdev properties, because it belongs to the
disk's guest part.
Maintain backward compatibility exactly like for serial: fall back to
DriveInfo's geometry, set with -drive cyls=...
Bonus: info qtree now shows the geometry.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Geometry needs to be qdev properties, because it belongs to the
disk's guest part.
Maintain backward compatibility exactly like for serial: fall back to
DriveInfo's geometry, set with -drive cyls=...
Do this only for scsi-hd. scsi-disk is legacy. scsi-cd doesn't have
a geometry. scsi-block should get geometry from the host disk.
Bonus: info qtree now shows the geometry.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Best to use the same type, to avoid unwanted truncation or sign
extension.
BlockConf can't use plain int for cyls, heads and secs, because
integer properties require an exact width.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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In preparation of purging it from the block layer, which will happen
later in this series.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
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