raw_aio_attach_aio_context() passes uninitialized Error *local_err by
reference to laio_init() via aio_setup_linux_aio(). When laio_init()
fails, it passes it on to error_setg_errno(), tripping error_setv()'s
assertion unless @local_err is null by dumb luck.
Fix by initializing @local_err properly.
Fixes: ed6e216171
Cc: Nishanth Aravamudan <naravamudan@digitalocean.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191130194240.10517-4-armbru@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Functions that take an Error ** parameter to pass an error to the
caller expect the parameter to point to null.
failover_replug_primary() violates this precondition in several
places:
* After qemu_opts_from_qdict() failed, *errp is no longer null.
Passing it to error_setg() is wrong, and will trip the assertion in
error_setv(). Messed up in commit 150ab54aa6 "net/virtio: fix
re-plugging of primary device". Simply drop the error_setg().
* Passing @errp to qemu_opt_set_bool(), hotplug_handler_pre_plug(),
and hotplug_handler_plug() is wrong. If one of the first two fails,
*errp is no longer null. Risks tripping the same assertion.
Moreover, continuing after such errors is unsafe. Messed up in
commit 9711cd0dfc "net/virtio: add failover support". Fix by
handling each error properly.
failover_replug_primary() crashes when passed a null @errp. Also
messed up in commit 9711cd0dfc. This bug can't bite as no caller
actually passes null. Fix it anyway.
Fixes: 9711cd0dfc
Fixes: 150ab54aa6
Cc: Jens Freimann <jfreimann@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191130194240.10517-3-armbru@redhat.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
virtio_net_handle_migration_primary() returns early when it can't
ensure n->primary_dev is non-null. Checking it again right after that
early return is redundant. Drop.
If n->primary_dev is null on entering failover_replug_primary(), @pdev
will become null, and pdev->partially_hotplugged will crash. Checking
n->primary_dev later is useless. It can't actually be null, because
its caller virtio_net_handle_migration_primary() ensures it isn't.
Drop the useless check.
Cc: Jens Freimann <jfreimann@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20191130194240.10517-2-armbru@redhat.com>
Reviewed-by: Jens Freimann <jfreimann@redhat.com>
virtfs-proxy-helper is the only user of libcap; everyone else is using
the simpler libcap-ng API. Switch and remove the configure code to
detect libcap.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
[groug: - drop remaining -lcap from Makefile
- fix error message in configure]
Signed-off-by: Greg Kurz <groug@kaod.org>
It's broken so it's no longer helping. The latest Xcode is covered by
Cirrus.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-id: 20191127132430.3681-1-alex.bennee@linaro.org
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The existing s390 bios gets the LOADPARM information from the system using
an SCLP call that specifies a buffer length too small to contain all the
output.
The recent fixes in the SCLP code have exposed this bug, since now the
SCLP call will return an error (as per architecture) instead of
writing partially and completing successfully.
The solution is simply to specify the full page length as the SCCB
length instead of a smaller size.
Fixes: 832be0d8a3 ("s390x: sclp: Report insufficient SCCB length")
Fixes: 9a22473c70 ("pc-bios/s390-ccw: get LOADPARM stored in SCP Read Info")
Reported-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-Id: <1574944437-31182-1-git-send-email-imbrenda@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Tested-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Here's the first 4.2 hard freeze pull request from me. This has:
* A fix for some testcases that cause errors on older host kernels
(e.g. RHEL7), with our new default configuration of VSMT mode
* Changes to make VFIO devices interact properly with change of irq
chip caused by PAPR feature negotiation. This is more involved
than I would like, but it's a problem in real use cases and I
can't see an easier way to handle it.
* Fix an error with ms6522 counters for the g3beige machine
* Fix a coverity warning
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Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-4.2-20191126' into staging
ppc patch queue for 2019-11-26
Here's the first 4.2 hard freeze pull request from me. This has:
* A fix for some testcases that cause errors on older host kernels
(e.g. RHEL7), with our new default configuration of VSMT mode
* Changes to make VFIO devices interact properly with change of irq
chip caused by PAPR feature negotiation. This is more involved
than I would like, but it's a problem in real use cases and I
can't see an easier way to handle it.
* Fix an error with ms6522 counters for the g3beige machine
* Fix a coverity warning
# gpg: Signature made Tue 26 Nov 2019 05:52:16 GMT
# gpg: using RSA key 75F46586AE61A66CC44E87DC6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>" [full]
# gpg: aka "David Gibson (Red Hat) <dgibson@redhat.com>" [full]
# gpg: aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>" [full]
# gpg: aka "David Gibson (kernel.org) <dwg@kernel.org>" [unknown]
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E 87DC 6C38 CACA 20D9 B392
* remotes/dgibson/tags/ppc-for-4.2-20191126:
ppc/spapr_events: fix potential NULL pointer dereference in rtas_event_log_dequeue
mos6522: update counters when timer interrupts are off
spapr: Work around spurious warnings from vfio INTx initialization
spapr: Handle irq backend changes with VFIO PCI devices
vfio/pci: Respond to KVM irqchip change notifier
vfio/pci: Split vfio_intx_update()
kvm: Introduce KVM irqchip change notifier
pseries: fix migration-test and pxe-test
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
HCR_EL2.TID3 mandates that access from EL1 to a long list of id
registers traps to EL2, and QEMU has so far ignored this requirement.
This breaks (among other things) KVM guests that have PtrAuth enabled,
while the hypervisor doesn't want to expose the feature to its guest.
To achieve this, KVM traps the ID registers (ID_AA64ISAR1_EL1 in this
case), and masks out the unsupported feature.
QEMU not honoring the trap request means that the guest observes
that the feature is present in the HW, starts using it, and dies
a horrible death when KVM injects an UNDEF, because the feature
*really* isn't supported.
Do the right thing by trapping to EL2 if HCR_EL2.TID3 is set.
Note that this change does not include trapping of the MVFR
registers from AArch32 (they are accessed via the VMRS
instruction and need to be handled in a different way).
Reported-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Tested-by: Will Deacon <will@kernel.org>
Message-id: 20191123115618.29230-1-maz@kernel.org
[PMM: added missing accessfn line for ID_AA4PFR2_EL1_RESERVED;
changed names of access functions to include _tid3]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The ARMv8 ARM states when executing at EL2, EL3 or Secure EL1,
ISR_EL1 shows the pending status of the physical IRQ, FIQ, or
SError interrupts.
Unfortunately, QEMU's implementation only considers the HCR_EL2
bits, and ignores the current exception level. This means a hypervisor
trying to look at its own interrupt state actually sees the guest
state, which is unexpected and breaks KVM as of Linux 5.3.
Instead, check for the running EL and return the physical bits
if not running in a virtualized context.
Fixes: 636540e9c4
Cc: qemu-stable@nongnu.org
Reported-by: Quentin Perret <qperret@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Message-id: 20191122135833.28953-1-maz@kernel.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add the CRP as unimplemented thus avoiding bus errors when
guests access these registers.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Luc Michel <luc.michel@greensocs.com>
Message-id: 20191115154734.26449-2-edgar.iglesias@gmail.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
According to the PushStack() pseudocode in the armv7m RM,
bit 4 of the LR should be set to NOT(CONTROL.PFCA) when
an FPU is present. Current implementation is doing it for
armv8, but not for armv7. This patch makes the existing
logic applicable to both code paths.
Signed-off-by: Jean-Hugues Deschenes <jean-hugues.deschenes@ossiaco.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add optional pre-shutdown: shutdown/launch vm before migration. This
leads to storing persistent bitmap to the storage, which breaks
migration with dirty-bitmaps capability enabled and shared storage
until fixed by previous commit.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191125125229.13531-3-vsementsov@virtuozzo.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
Fix bitmap migration with dirty-bitmaps capability enabled and shared
storage. We should ignore IN_USE bitmaps in the image on target, when
migrating bitmaps through migration channel, see new comment below.
Fixes: 74da6b9435
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-id: 20191125125229.13531-2-vsementsov@virtuozzo.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
This tag contains two patches that I'd like to target for 4.2-rc3:
* A fix to the DT entry for the SiFive test finisher.
* A fix to the spike board's HTIF interface.
This passes "make check" and boots OE for me.
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Merge remote-tracking branch 'remotes/palmer/tags/riscv-for-master-4.2-rc3' into staging
RISC-V Patches for 4.2-rc3
This tag contains two patches that I'd like to target for 4.2-rc3:
* A fix to the DT entry for the SiFive test finisher.
* A fix to the spike board's HTIF interface.
This passes "make check" and boots OE for me.
# gpg: Signature made Mon 25 Nov 2019 20:51:13 GMT
# gpg: using RSA key 00CE76D1834960DFCE886DF8EF4CA1502CCBAB41
# gpg: issuer "palmer@dabbelt.com"
# gpg: Good signature from "Palmer Dabbelt <palmer@dabbelt.com>" [unknown]
# gpg: aka "Palmer Dabbelt <palmer@sifive.com>" [unknown]
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 00CE 76D1 8349 60DF CE88 6DF8 EF4C A150 2CCB AB41
* remotes/palmer/tags/riscv-for-master-4.2-rc3:
hw/riscv: Add optional symbol callback ptr to riscv_load_kernel()
RISC-V: virt: This is a "sifive,test1" test finisher
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The current image is broken while running qtests but the bug go away
when built with a newer Ubuntu i386 image. I was unable to replicate
the crash on Debian Buster for i386 either so I'm concluding it is a
distro problem. Let's paper over that crack by updating our 32 bir
test image.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
The iotests in particular don't like the output being spammed with
warnings about locales.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
To be able to run the docker tests centos has here we have to install
python3 as well as the basic tools.
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
More accurately match SDM when setting CR0 and PDPTE registers.
Clear PDPTE registers when resetting vcpus.
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Message-Id: <464adb39c8699fb8331d8ad6016fc3e2eff53dbc.1574625592.git.dirty@apple.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
In real x86 processors, the REX prefix must come after legacy prefixes.
REX before legacy is ignored. Update the HVF emulation code to properly
handle this. Fix some spelling errors in constants. Fix some decoder
table initialization issues found by Coverity.
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Message-Id: <eff30ded8307471936bec5d84c3b6efbc95e3211.1574625592.git.dirty@apple.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The existing code in QEMU's HVF support to attempt to synchronize TSC
across multiple cores is not sufficient. TSC value on other cores
can go backwards. Until implementation is fixed, remove calls to
hv_vm_sync_tsc(). Pass through TSC to guest OS.
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Message-Id: <44c4afd2301b8bf99682b229b0796d84edd6d66f.1574625592.git.dirty@apple.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
If an area is non-RAM and non-ROMD, then remove mappings so accesses
will trap and can be emulated. Change hvf_find_overlap_slot() to take
a size instead of an end address: it wouldn't return a slot because
callers would pass the same address for start and end. Don't always
map area as read/write/execute, respect area flags.
Signed-off-by: Cameron Esfahani <dirty@apple.com>
Message-Id: <1d8476c8f86959273fbdf23c86f8b4b611f5e2e1.1574625592.git.dirty@apple.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
They are present in client (Core) Skylake but pasted wrong into the server
SKUs.
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Even if the interrupts are off, counters must be updated because
they are running anyway and kernel can try to read them
(it's the case with g3beige kernel).
Reported-by: Andrew Randrianasulu <randrianasulu@gmail.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20191125141414.5015-1-laurent@vivier.eu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Traditional PCI INTx for vfio devices can only perform well if using
an in-kernel irqchip. Therefore, vfio_intx_update() issues a warning
if an in kernel irqchip is not available.
We usually do have an in-kernel irqchip available for pseries machines
on POWER hosts. However, because the platform allows feature
negotiation of what interrupt controller model to use, we don't
currently initialize it until machine reset. vfio_intx_update() is
called (first) from vfio_realize() before that, so it can issue a
spurious warning, even if we will have an in kernel irqchip by the
time we need it.
To workaround this, make a call to spapr_irq_update_active_intc() from
spapr_irq_init() which is called at machine realize time, before the
vfio realize. This call will be pretty much obsoleted by the later
call at reset time, but it serves to suppress the spurious warning
from VFIO.
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
pseries machine type can have one of two different interrupt controllers in
use depending on feature negotiation with the guest. Usually this is
invisible to devices, because they route to a common set of qemu_irqs which
in turn dispatch to the correct back end.
VFIO passthrough devices, however, wire themselves up directly to the KVM
irqchip for performance, which means they are affected by this change in
interrupt controller. To get them to adjust correctly for the change in
irqchip, we need to fire the kvm irqchip change notifier.
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
VFIO PCI devices already respond to the pci intx routing notifier, in order
to update kernel irqchip mappings when routing is updated. However this
won't handle the case where the irqchip itself is replaced by a different
model while retaining the same routing. This case can happen on
the pseries machine type due to PAPR feature negotiation.
To handle that case, add a handler for the irqchip change notifier, which
does much the same thing as the routing notifier, but is unconditional,
rather than being a no-op when the routing hasn't changed.
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
This splits the vfio_intx_update() function into one part doing the actual
reconnection with the KVM irqchip (vfio_intx_update(), now taking an
argument with the new routing) and vfio_intx_routing_notifier() which
handles calls to the pci device intx routing notifier and calling
vfio_intx_update() when necessary. This will make adding support for the
irqchip change notifier easier.
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Awareness of an in kernel irqchip is usually local to the machine and its
top-level interrupt controller. However, in a few cases other things need
to know about it. In particular vfio devices need this in order to
accelerate interrupt delivery.
If interrupt routing is changed, such devices may need to readjust their
connection to the KVM irqchip. pci_bus_fire_intx_routing_notifier() exists
to do just this.
However, for the pseries machine type we have a situation where the routing
remains constant but the top-level irq chip itself is changed. This occurs
because of PAPR feature negotiation which allows the guest to decide
between the older XICS and newer XIVE irq chip models (both of which are
paravirtualized).
To allow devices like vfio to adjust to this change, introduce a new
notifier for the purpose kvm_irqchip_change_notify().
Cc: Alex Williamson <alex.williamson@redhat.com>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Tested-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Alex Williamson <alex.williamson@redhat.com>
Reviewed-by: Greg Kurz <groug@kaod.org>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Commit 29cb418749 ("spapr: Set VSMT to smp_threads by default")
has introduced a new default value for VSMT that is not supported
by old kernels (before 4.13 kernel) and this breaks "make check"
on these kernels.
To fix that, explicitly set in the involved tests the value that was
used as the default value before the change.
Cc: Greg Kurz <groug@kaod.org>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20191120142539.236279-1-lvivier@redhat.com>
Acked-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Tested-by: Greg Kurz <groug@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Python 3.7.5 on f31 doesn't seem to like the old type=file syntax
on argparse.
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Message-Id: <20191121185303.51685-1-dgilbert@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cleber Rosa <crosa@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
This patch adds an optional function pointer, "sym_cb", to
riscv_load_kernel() which provides the possibility to access the symbol
table during kernel loading.
The pointer is ignored, if supplied with Image or uImage file.
The Spike board requires the access to locate the HTIF symbols.
Fixes: 0ac24d56c5 ("hw/riscv: Split out the boot functions")
Buglink: https://bugs.launchpad.net/qemu/+bug/1835827
Signed-off-by: Siwei Zhuang <siwei.zhuang@data61.csiro.au>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
The test finisher implements the reset command, which means it's a
"sifive,test1" device. This is a backwards compatible change, so it's
also a "sifive,test0" device. I copied the odd idiom for adding a
two-string compatible field from the ARM virt board.
Fixes: 9a2551ed6f ("riscv: sifive_test: Add reset functionality")
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
Signed-off-by: Palmer Dabbelt <palmer@dabbelt.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging
# gpg: Signature made Mon 25 Nov 2019 15:30:56 GMT
# gpg: using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg: It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F 3562 EF04 965B 398D 6211
* remotes/jasowang/tags/net-pull-request:
net/virtio: return error when device_opts arg is NULL
net/virtio: fix re-plugging of primary device
net/virtio: return early when failover primary alread added
net/virtio: fix dev_unplug_pending
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This fixes CID 1407222.
Fixes: 9711cd0dfc ("net/virtio: add failover support")
Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
failover_replug_primary was returning true on failure which lead to
re-plug not working when a migration failed. Fix this by returning
success when hotplug worked. This is a bug that was missed in last
round of testing but was tested succesfully with this version. Also
make sure we don't pass NULL to qdev_set_parent_bus().
This fixes CID 1407224.
Fixes: 9711cd0dfc ("net/virtio: add failover support")
Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Bail out when primary device was already added before.
This avoids printing a wrong warning message during reboot.
Fixes: 9711cd0dfc ("net/virtio: add failover support")
Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
.dev_unplug_pending is set up by virtio-net code indepent of failover
support was set for the device or not. This gives a wrong result when
we check for existing primary devices in migration code.
Fix this by actually calling dev_unplug_pending() instead of just
checking if the function pointer was set. When the feature was not
negotiated dev_unplug_pending() will always return false. This prevents
us from going into the wait-unplug state when there's no primary device
present.
Fixes: 9711cd0dfc ("net/virtio: add failover support")
Signed-off-by: Jens Freimann <jfreimann@redhat.com>
Reported-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
