There's no need to use g_malloc0() to allocate the channel_subsys
struct, just use a static variable.
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: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1455656347-29033-3-git-send-email-ehabkost@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
[adapted on top of indicator changes]
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Indicator refcounting interfaces are introduced. This patch fixes
introducing unneeded indicator mappings and failure to release
AISB mappings on deregistration.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Currently, virtio-ccw uses its own interfaces to keep indicators mapped
just once even if the same address has been registered multiple times.
These interfaces fit the PCI use case as well. Therefore, move them to
css and make them generic interfaces.
Signed-off-by: Yi Min Zhao <zyimin@linux.vnet.ibm.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
When configured to inject an NMI, watchdog_perform_action() may cause
the BQL to be temporarily relinquished (inject_nmi() → ... →
s390_nmi() → s390_cpu_restart() → run_on_cpu()). When the guest issues
diag 288 again in response to the NMI, the diag 288 operation will
race against wdt_diag288_reset(). Depending on scheduler behaviour,
wdt_diag288_reset() may be run after the guest issued a diag 288
Init. As a result, we will cancel the timer the guest just set up. The
effect observed by the guest is that a second expiry does not trigger
the watchdog action and diag 288 Change operations fail.
Fix this by resetting the timer _before_ invoking the action.
Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Acked-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com>
If dropping packets, data is freed, the caller's loop should not continue.
Reported by ccc-analyzer.
Signed-off-by: Fam Zheng <famz@redhat.com>
Message-id: 1456301288-1592-1-git-send-email-famz@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Using the return value to report errors is error prone:
- xics_alloc() returns -1 on error but spapr_vio_busdev_realize() errors
on 0
- xics_alloc_block() returns the unclear value of ics->offset - 1 on error
but both rtas_ibm_change_msi() and spapr_phb_realize() error on 0
This patch adds an errp argument to xics_alloc() and xics_alloc_block() to
report errors. The return value of these functions is a valid IRQ number
if errp is NULL. It is undefined otherwise.
The corresponding error traces get promotted to error messages. Note that
the "can't allocate IRQ" error message in spapr_vio_busdev_realize() also
moves to xics_alloc(). Similar error message consolidation isn't really
applicable to xics_alloc_block() because callers have extra context (device
config address, MSI or MSIX).
This fixes the issues mentioned above.
Based on previous work from Brian W. Hart.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Migration of pseries-2.3 doesn't have configuration section. Unfortunately,
QEMU 2.4/2.4.1/2.5 are buggy and always stream and expect the configuration
section, and break migration both ways.
This patch introduces a property which allows to enforce a configuration
section for machines who don't have one.
It can be set at startup:
-machine enforce-config-section=on
or later from the QEMU monitor:
qom-set /machine enforce-config-section on
It is up to the tooling to set or unset this property according to the
version of the QEMU at the other end of the pipe.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Since QEMU 2.4, we have a configuration section in the migration stream.
This must be skipped for older machines, like it is already done for x86.
This patch fixes the migration of pseries-2.3 from/to QEMU 2.3, but it
breaks migration of the same machine from/to QEMU 2.4/2.4.1/2.5. We do
that anyway because QEMU 2.3 is likely to be more widely deployed than
newer QEMU versions.
Fixes: 61964c23e5
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
With this, it's easier to know if a guest uses an invalid and/or unimplemented
DMA channel.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Since QEMU 2.3, we have a vmdesc section in the migration stream.
This section is not mandatory but when migrating a pseries-2.2
machine from QEMU 2.2, you get a warning at the destination:
qemu-system-ppc64: Expected vmdescription section, but got 0
The warning goes away if we decide to skip vmdesc as well for
older pseries, like it is already done for pc's.
This can only be observed with -cpu POWER7 because POWER8
cannot migrate from QEMU 2.2 to 2.3 (insns_flags2 mismatch).
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This RTAS call is used to request new interrupts or to free all interrupts.
If the driver has already allocated interrupts and asks again for a non-null
number of irqs, then the rtas_ibm_change_msi() function will silently leak
the previous interrupts.
It happens because xics_free() is only called when the driver releases all
interrupts (!req_num case). Note that the previously allocated spapr_pci_msi
is not leaked because the GHashTable is created with destroy functions and
g_hash_table_insert() hence frees the old value.
This patch makes sure any previously allocated MSIs are released when a
new allocation succeeds.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The num local variable is initialized to zero and has no writer.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
It is currently possible to hotplug a spapr_rng device but QEMU crashes
when we try to hot unplug:
ERROR:hw/core/qdev.c:295:qdev_unplug: assertion failed: (hotplug_ctrl)
Aborted
This happens because spapr_rng isn't plugged to any bus and sPAPR does
not provide hotplug support for it: qdev_get_hotplug_handler() hence
return NULL and we hit the assertion.
And anyway, it doesn't make much sense to unplug this device since hcalls
cannot be unregistered. Even the idea of hotplugging a RNG device instead
of declaring it on the QEMU command line looks weird.
This patch simply disables hotpluggability for the spapr-rng class.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This quirk is a workaround for the following hardware behaviour, on
which UEFI (specifically, the bootloader for Windows on Pi2) depends:
1. at boot with an SD card present, the interrupt status/enable
registers are initially zero
2. upon enabling it in the interrupt enable register, the card insert
bit in the interrupt status register is immediately set
3. after a subsequent controller reset, the card insert interrupt does
not fire, even if enabled in the interrupt enable register
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1456436130-7048-3-git-send-email-Andrew.Baumann@microsoft.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This reverts commit 723697551a.
This change was poorly tested on my part. It squelched card insertion
interrupts on reset, but that was not necessary because sdhci_reset()
clears all the registers (via the call to memset), so the subsequent
sdhci_insert_eject_cb() call never sees the card insert interrupt
enabled. However, not calling the insert_eject_cb results in prnsts
remaining 0, when it actually needs to be updated to indicate card
presence and R/O status.
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1456436130-7048-2-git-send-email-Andrew.Baumann@microsoft.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Recent changes to sdhci broke SD on raspi. This change mirrors
the logic to create the SD card device at the board level.
Signed-off-by: Andrew Baumann <Andrew.Baumann@microsoft.com>
Message-id: 1456351128-5560-1-git-send-email-Andrew.Baumann@microsoft.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
pl061.c emulates two GPIO devices, ARM PL061 and TI Stellaris, which
share the same read/write functions (pl061_read and pl061_write).
However PL061 and Stellaris have different GPIO register definitions
and pl061_read()/pl061_write() doesn't check it. This patch enforces
checking on offset, preventing R/W into the reserved memory area.
Signed-off-by: Wei Huang <wei@redhat.com>
Message-id: 1455814580-17699-1-git-send-email-wei@redhat.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
When I reviewed Marc's fw_cfg DMA patches, I completely missed that the
way we set dma_enabled would break migration.
Gerd explained the right way (see reference below): dma_enabled should be
set to true by default, and only true->false transitions should be
possible:
- when the user requests that with
-global fw_cfg_mem.dma_enabled=off
or
-global fw_cfg_io.dma_enabled=off
as appropriate for the platform,
- when HW_COMPAT_2_4 dictates it,
- when board code initializes fw_cfg without requesting DMA support.
Cc: Marc Marí <markmb@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Alexandre DERUMIER <aderumier@odiso.com>
Cc: qemu-stable@nongnu.org
Ref: http://thread.gmane.org/gmane.comp.emulators.qemu/390272/focus=391042
Ref: https://bugs.launchpad.net/qemu/+bug/1536487
Suggested-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Message-id: 1455823860-22268-1-git-send-email-lersek@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Fixes all over the place.
virtio dataplane migration support.
Old q35 machine types removed.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging
vhost, virtio, pci, pc
Fixes all over the place.
virtio dataplane migration support.
Old q35 machine types removed.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
# gpg: Signature made Thu 25 Feb 2016 11:16:46 GMT 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: (21 commits)
q35: No need to check gigabyte_align
q35: Remove unused q35-acpi-dsdt.aml file
ich9: Remove enable_tco arguments from init functions
machine: Remove no_tco field
q35: Remove old machine versions
tests/vhost-user-bridge: fix build on 32 bit systems
vring: remove
virtio-scsi: do not use vring in dataplane
virtio-blk: do not use vring in dataplane
virtio-blk: fix "disabled data plane" mode
virtio: export vring_notify as virtio_should_notify
virtio: add AioContext-specific function for host notifiers
vring: make vring_enable_notification return void
block-migration: acquire AioContext as necessary
pci core: function pci_bus_init() cleanup
pci core: function pci_host_bus_register() cleanup
balloon: Use only 'pc-dimm' type dimm for ballooning
virtio-balloon: rewrite get_current_ram_size()
move get_current_ram_size to virtio-balloon.c
vhost-user: don't merge regions with different fds
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
gigabyte_align is always true on q35, so we don't need the
!gigabyte_align compat code anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
The file was used only by older machine-types, and it is not
needed anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
The enable_tco arguments are always true, so they are not needed
anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
The field is always set to zero, so it is not necessary anymore.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Migration with q35 was not possible before commit
04329029a8, because q35
unconditionally creates an ich9-ahci device, that was marked as
unmigratable. So all q35 machine classes before pc-q35-2.4 were
not migratable, so there's no point in keeping compatibility code
for them.
Remove all old pc-q35 machine classes and keep only pc-q35-2.4
and newer.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
In disabled mode, virtio-blk dataplane seems to be enabled, but flow
actually goes through the normal virtio path. This patch simplifies a bit
the handling of disabled mode. In disabled mode, virtio_blk_handle_output
might be called even if s->dataplane is not NULL.
This is a bit tricky, because the current check for s->dataplane will
always trigger, causing a continuous stream of calls to
virtio_blk_data_plane_start. Unfortunately, these calls will not
do anything. To fix this, set the "started" flag even in disabled
mode, and skip virtio_blk_data_plane_start if the started flag is true.
The resulting changes also prepare the code for the next patch, were
virtio-blk dataplane will reuse the same virtio_blk_handle_output function
as "regular" virtio-blk.
Because struct VirtIOBlockDataPlane is opaque in virtio-blk.c, we have
to move s->dataplane->started inside struct VirtIOBlock.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Virtio dataplane needs to trigger the irq manually through the
guest notifier. Export virtio_should_notify so that it can be
used around event_notifier_set.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
This is used to register ioeventfd with a dataplane thread.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
Make the API more similar to the regular virtqueue API. This will
help when modifying the code to not use vring.c anymore.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Acked-by: Stefan Hajnoczi <stefanha@redhat.com>
remove unused param
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
remove unused param, and rename the other to a meaningful one.
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
For now there are only two dimm's: pc-dimm and nvdimm. This patch is
actually needed to disable ballooning on nvdimm. But, to avoid future
bugs, instead of disallowing nvdimm, we allow only pc-dimm. So, if
someone adds new dimm which should be balloon-able, then this ability
should be explicitly specified here.
Why ballooning for nvdimm should be disabled for now:
NVDIMM for now is planned to use as a backing store for DAX filesystem
in the guest and thus this memory is excluded from guest memory
management and LRUs.
In this case libvirt running QEMU along with configured balloon almost
immediately inflates balloon and effectively kill the guest as
qemu counts nvdimm as part of the ram.
Counting dimm devices as part of the ram for ballooning was started from
commit 463756d03:
virtio-balloon: Fix balloon not working correctly when hotplug memory
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Use pc_dimm_built_list() instead of qmp_pc_dimm_device_list()
Actually, Qapi is not related to this internal helper.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This fixes a crash in the target QEMU during migration.
Broken in commit c5f54f3.
Signed-off-by: Greg Kurz <gkurz@linux.vnet.ibm.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[reworded commit message]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This hypercall either initializes a page with zeros, or copies
another page.
According to LoPAPR, the i-cache of the page should also be
flushed if using H_ICACHE_INVALIDATE or H_ICACHE_SYNCHRONIZE,
and the d-cache should be synchronized to the RAM if the
H_ICACHE_SYNCHRONIZE flag is used. For this, two new functions
are introduced, kvmppc_dcbst_range() and kvmppc_icbi()_range, which
use the corresponding assembler instructions to flush the caches
if running with KVM on Power. If the code runs with TCG instead,
the code only uses tb_flush(), assuming that this will be
enough for synchronization.
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.
This commit was created with scripts/clean-includes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
This just catches a couple of stragglers since I posted
the last clean-includes patchset last week.
Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.
This commit was created with scripts/clean-includes.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
get_current_ram_size() is used only in virtio-balloon.c
This patch moves it into virtio-balloon and make it static, to allow
some balloon-specific tuning.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
vhost currently merges regions with contiguious virtual and physical
addresses. This breaks for vhost-user since that also needs fds to
match.
Add a vhost_ops entry to compare the fds for vhost-user only.
Cc: qemu-stable@nongnu.org
Cc: Victor Kaplansky <victork@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
While guest/host ABI is documented in hw/acpi/bios-linker-loader.c,
the API was left undocumented.
This adds documentation for all API functions.
Additionally, input is validated to make sure all
pointers fall within range of provided files.
To allow this validation for checksum commands,
bios_linker_loader_add_checksum is changed to accept GArray * in place
of void *.
Reported-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Allocate timer once, at init time, instead of allocating/freeing
it all the time when starting/stopping the bus. Simplifies the
code, also fixes bugs (memory leak) due to missing checks whenever
the time is already allocated or not.
Cc: Prasad J Pandit <pjp@fedoraproject.org>
Reported-by: Zuozhi Fzz <zuozhi.fzz@alibaba-inc.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
pid can be gotten from uhci device memory in uhci_handle_td(),
so the guest can trigger assert qemu if we get an invalid pid.
And the uhci spec 2.1.2 tells us The Host Controller sets Host
Controller Process Error bit to 1 when it detects a fatal error
and indicates that the Host Controller suffered a consistency
check failure while processing a Transfer Descriptor. An example
of a consistency check failure would be finding an illegal PID
field while processing the packet header portion of the TD.
When this error occurs, the Host Controller clears the Run/Stop
bit in the Command register to prevent further schedule execution.
We'd better to set UHCI_STS_HCPERR and kick an interrupt, check
the pid value at the first of uhci_handle_td function.
https://bugzilla.redhat.com/show_bug.cgi?id=1070027
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Message-id: 1455867238-4720-1-git-send-email-arei.gonglei@huawei.com
[ applied minor codestyle fix ]
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When processing remote NDIS control message packets,
the USB Net device emulator uses a fixed length(4096) data buffer.
The incoming informationBufferOffset & Length combination could
overflow and cross that range. Check control message buffer
offsets and length to avoid it.
Reported-by: Qinghao Tang <luodalongde@gmail.com>
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 1455648821-17340-3-git-send-email-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When processing remote NDIS control message packets, the USB Net
device emulator uses a fixed length(4096) data buffer. The incoming
packet length could exceed this limit. Add a check to avoid it.
Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
Message-id: 1455648821-17340-2-git-send-email-ppandit@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The TUSB6010 is a USB controller (as the name suggests). Move it from
hw/timer (where it was accidentally filed in 2013 when we moved
everything out of hw/) to hw/usb.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 1455883404-10976-1-git-send-email-peter.maydell@linaro.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
