Finally, this uses the "plumbing" in the previous patch to
add support for toggling the WCE bit of the caching mode page.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds the bulk of the parsing code for MODE SELECT, including
breaking out changes to different mode pages, and checking that only
changeable values are modified.
In order to report errors correctly two passes are made through the
parameters; the first only looks for errors, the second actually
applies the changes to the mode page.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This will make offsets the same when implementing MODE SELECT. This is
because MODE SELECT has to deal with both 2-byte and 4-byte headers.
Unfortunately, this means that the offsets are now off by two compared
to the descriptions in the SCSI specs, which include the header.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds the implementation of write_data for the emulated
command case. The first time through it asks for more data,
the second time it finishes the processing of the command.
MODE SELECT and MODE SELECT(10) can now be re-enabled, but they
will not do much.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The previous patch only separated the send_command callback.
Use different implementations also for read_data and write_data.
The latter is still unreachable, so it aborts for now.
read_data passes the data buffer that was prepared and completes
the command.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Only checks for present medium were still done in scsi_send_command
for emulated commands. So move those to scsi_disk_emulate_command
and return different SCSIReqOps depending on the kind of command.
Checks for present medium can be done unconditionally for the
scsi_disk_dma_reqops case.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
We want to use separate SCSIReqOps for emulated commands needing an
allocated buffer vs. those that are zerocopy when the HBA supports
S/G lists. Ensure that all of the former are in scsi_disk_emulate_command.
Commands that do not have any parameters are more similar to emulated
commands, so also move them, even if they do I/O.
Finally, MODE SELECT and MODE SELECT(10) are broken because we do not
yet support passing parameter data _to_ emulated commands, so disable
them.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
By making discard asynchronous, we can reuse all the error handling
code that is used for other commands.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch adds two new properties vendor and product to SCSI disks.
These options let the user customize the inquiry data returned by the
disk.
Signed-off-by: Yan Vugenfirer <yan@ravellosystems.com>
Signed-off-by: Dmitry Fleytman <dmitry.fleytman@ravellosystems.com>
[ Use vendor and product property names, avoid "if" statements. - PB ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
scsi-block is a passthrough device and does not allow customization
of vendor, product, removable, DPOFUA, block size or any other piece of
information. Thus, drop DEFINE_SCSI_DISK_PROPERTIES() from the
list of qdev properties.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Simplify the code by checking against req->hba_private directly,
and asserting that it is non-NULL before a command is completed
or canceled.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
By first resetting the devices, lsi_soft_reset will find the queue
already cleared so there is no need to do that forcibly (which may also
leak SCSIRequests, and/or worse due to dangling references to the
lsi_request in the hba_private field).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
scsi_req_abort is for terminating a command with a non-zero status.
The ABORT task management function is invoked by scsi_req_cancel.
In fact, ABORTED_COMMAND is a sense key, not a SAM status code.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
trace_megasas_dcmd_dump_frame() takes 9 arguments, which is
rather much. Plus the trace infrastructure doesn't support
it. As we can get the information via other means it's pointless
to have it in the driver, so rather use some proper trace
point here and remove the old one.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* stefanha/net:
remove unused QemuOpts parameter from net init functions
convert net_init_bridge() to NetClientOptions
convert net_init_tap() to NetClientOptions
convert net_init_vde() to NetClientOptions
convert net_init_socket() to NetClientOptions
convert net_init_slirp() to NetClientOptions
convert net_init_dump() to NetClientOptions
convert net_init_nic() to NetClientOptions
convert net_client_init() to OptsVisitor
hw, net: "net_client_type" -> "NetClientOptionsKind" (qapi-generated)
qapi schema: add Netdev types
qapi schema: remove trailing whitespace
qapi: introduce OptsVisitor
expose QemuOpt and QemuOpts struct definitions to interested parties
qapi: introduce "size" type
qapi: generate C types for fixed-width integers
qapi: add test case for deallocating traversal of incomplete structure
qapi: fix error propagation
MAINTAINERS: Replace net maintainer Mark McLoughlin with Stefan Hajnoczi
* stefanha/trivial-patches:
Fix some more Qemus in documentation and help text
qdev: Fix Open Firmware comment
cpus.c: Make all_cpu_threads_idle() static
Use macro QEMU_PACKED for new packed structures
Recognize PCID feature
powerpc pci: fixed packing of ranges[]
Commit 0d936928ef removed code,
but left the related comment at a location where it no longer
belongs to.
The patch moves the comment to the correct callback and improves the text.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Since commit 541dc0d47f,
some new packed structures were added without using QEMU_PACKED.
QEMU_PACKED is needed for compilations with MinGW.
For other platforms nothing changes.
The code was fixed using this command:
git grep -la '__attribute__ ((packed))'|xargs perl -pi -e 's/__attribute__ \(\(packed\)\)/QEMU_PACKED/'
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
By default mingw-gcc is trying to pack structures the way to
preserve binary compatibility with MS Visual C what leads to
incorrect and unexpected padding in the PCI bus ranges property of
the sPAPR PHB.
The patch replaces __attribute__((packed)) with more strict QEMU_PACKED
which actually is __attribute__((gcc_struct, packed)) on Windows.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Tested-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Now that we have LPAE support and can handle passing 64 bit
RAM sizes to Linux via the device tree, we can lift the
restriction in the Versatile Express A15 daughterboard model
on not having more than 2GB of RAM. Allow up to 30GB, which
is the maximum that can fit in the address map before running
into the (unmodelled) aliases of the first 2GB.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Support the case where the device tree blob specifies that
#address-cells and #size-cells are greater than 1. (This
is needed for device trees which can handle 64 bit physical
addresses and thus total RAM sizes over 4GB.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
The legacy ATAGS format for passing information to the kernel only
allows RAM sizes which fit in 32 bits; enforce this restriction
rather than silently doing something weird.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Clean up the mix of getting the RAM size from the global ram_size
and from the ram_size field in the arm_boot_info structure, so
that we always use the structure field.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Make the RAM size in arm_boot_info a uint64_t so it can express
the larger RAM sizes that may be seen in LPAE systems.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Add a missing guard that meant we would segfault if the guest read
UARTDR on a PL011 serial device which had no chr backend connected.
(This didn't happen for Linux guests because Linux reads the flags
register and doesn't try to read the UART if it's empty.)
Reported-by: Christian Müller <christian.mueller@heig-vd.ch>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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>
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>
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>
* 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
...
* 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()
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
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>
PC BIOS setup needs IDE geometry information. Get it directly from
the device model rather than through the block layer. In preparation
of purging geometry 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>
hd_geometry_guess() picks geometry and translation. Callers can get
the geometry directly, via parameters, but for translation they need
to go through the block layer.
Add a parameter for translation, so it can optionally be gotten just
like geometry. In preparation of purging translation 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>
When hd_geometry_guess() picks a geometry, it also picks the
appropriate translation, but only when the prior translation hint is
BIOS_ATA_TRANSLATION_AUTO. Looks wrong, because such a prior
translation would be passed to the BIOS whether it's suitable for the
geometry or not.
Fortunately, that can't happen. There are just two ways for the
translation hint to get set to something other than
BIOS_ATA_TRANSLATION_AUTO: drive_init() on behalf of -drive trans=...,
and hd_geometry_guess(). Both set it only when they also set a valid
geometry hint, i.e. one with a non-zero number of cylinders.
Since hd_geometry_guess() returns right away when it finds a valid
geometry hint, translation can only be BIOS_ATA_TRANSLATION_AUTO in
the remainder of the function.
Assert this, and simplify accordingly.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Commit f3d54fc4 factored it out of hw/ide.c for reuse. Sensible,
except it was put into block.c. Device-specific functionality should
be kept in device code, not the block layer. Move it to
hw/hd-geometry.c, and make stylistic changes required to keep
checkpatch.pl happy.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Commit 5bbdbb46 moved it to block.c because "other geometry guessing
functions already reside in block.c". Device-specific functionality
should be kept in device code, not the block layer. Move it back.
Disk geometry guessing is still in block.c. To be moved out in a
later patch series.
Bonus: the floppy type used in pc_cmos_init() now obviously matches
the one in the FDrive. Before, we relied on
bdrv_get_floppy_geometry_hint() picking the same type both in
fd_revalidate() and in pc_cmos_init().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Let the text cursor blink at 1.875 Hz, the original VGA cursor
frequency. No timer is used, instead we rely on the fact that the
display is updated periodically.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Switch a format string from %x to TARGET_PRIxPHYS so that it will
continue to work even if target_phys_addr_t is changed
to 64 bits in the future.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Use the new TARGET_PRIxPHYS macro to avoid the need to define an
OMAP_FMT_plx macro whose expansion depends directly on
TARGET_PHYS_ADDR_BITS.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The PCI version is supported in lots of Operating Systems,
and has been successfully tested on:
- MS DOS 6.22 (using DC390 driver)
- MS Windows 3.11 (using DC390 driver)
- MS Windows 98 SE (using default driver)
- MS Windows NT 3.1 (using DC390 driver)
- MS Windows NT 4.0 (using default driver)
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
The same mechanism is already in place for some select commands.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Suggested by blue swirl. Patch is on top of Paolo's
scsi-next tree.
Signed-off-by: Hannes Reinecke <hare@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Move down the expire time calculation down in the frame timer, to the
point where the timer is actually reloaded. This way we'll notice any
async_stepdown changes (especially resetting to 0 due to usb activity).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
With the async schedule being kicked from other places than the frame
timer (commit 0f588df8b3) it may happen
that we call ehci_commit_interrupt() more than once per frame.
Move the call from the async schedule handler to the frame timer to
restore old irq behavior, which is more correct. Fixes regressions
with some linux kernel versions.
TODO: implement full Interrupt Threshold Control support.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
$subject says all: when loading old (v1) vmstate which doesn't contain
expire_time initialize it with a reasonable default (current time).
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
$subject says all. First cut.
It's a pure UAS (usb attached scsi) emulation, without BOT (bulk-only
transport) compatibility. If your guest can't handle it use usb-storage
instead.
The emulation works like any other scsi hba emulation (eps, lsi, virtio,
megasas, ...). It provides just the HBA where you can attach scsi
devices as you like using '-device'. A single scsi target with up to
256 luns is supported.
For now only usb 2.0 transport is supported. This will change in the
future though as I plan to use this as playground when codeing up &
testing usb 3.0 transport and streams support in the qemu usb core and
the xhci emulation.
No migration support yet. I'm planning to add usb 3.0 support first as
this probably requires saving additional state.
Special thanks go to Paolo for bringing the qemu scsi emulation into
shape, so this can be added nicely without having to touch a single line
of scsi code.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
All transports can use the same event handler for the irqfd, though the
exact mechanics of the assignment will be specific. Note that there
are three states: handled by the kernel, handled in userspace, disabled.
This also lets virtio use event_notifier_set_handler.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
All transports can use the same event handler for the ioeventfd, though
the exact setup (address/memory region) will be specific.
This lets virtio use event_notifier_set_handler.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Under Win32, EventNotifiers will not have event_notifier_get_fd, so we
cannot call it in common code such as hw/virtio-pci.c. Pass a pointer to
the notifier, and only retrieve the file descriptor in kvm-specific code.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
All of ivshmem's usage of eventfd now has a corresponding API in
EventNotifier. Simplify the code by using it, and also use the
memory API consistently to set up and tear down the ioeventfds.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Add a missing cast to avoid gcc complaining about format string
errors when printing an expression based on a target_phys_addr_t.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Chubb <peter.chubb@nicta.com.au>
Most device models have a simple lifecycle for the hba_private field
and they can free it when a request is completed or cancelled.
However, in some cases it may be simpler to tie the lifetime
of hba_private to that of the included SCSIRequest. This patch
adds a free_request callback to SCSIBusInfo that lets an HBA
device model do exactly that.
Normally, device models use req->hba_private == NULL to flag requests
that have been completed already. Device models that use free_request
will still need to track this using a flag. This is the reason why
"converting" existing HBAs to use free_request adds complexity and
makes little sense. It is simply an additional convenience that is
provided by the SCSI layer. USB-attached storage will be the first
user.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
KVM performs TPR raising asynchronously to QEMU, specifically outside
QEMU's global lock. When an interrupt is injected into the APIC and TPR
is checked to decide if this can be delivered, a stale TPR value may be
used, causing spurious interrupts in the end.
Fix this by deferring apic_update_irq to the context of the target VCPU.
We introduce a new interrupt flag for this, CPU_INTERRUPT_POLL. When it
is set, the VCPU calls apic_poll_irq before checking for further pending
interrupts. To avoid special-casing KVM, we also implement this logic
for TCG mode.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
When the guest modifies the LVT_LINT0 register, we need to check if some
pending PIC interrupt can now be delivered.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Commit d96e173769 refactored the reinjection of pending PIC interrupts.
However, it missed the potential loop of apic_update_irq ->
apic_deliver_pic_intr -> apic_local_deliver -> apic_set_irq ->
apic_update_irq that /could/ occur if LINT0 is injected as APIC_DM_FIXED
and that vector is currently blocked via TPR.
Resolve this by reinjecting only where it matters: inside
apic_get_interrupt. This function may clear a vector while a
PIC-originated reason still exists.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
* mjt/mjt-iov2:
rewrite iov_send_recv() and move it to iov.c
cleanup qemu_co_sendv(), qemu_co_recvv() and friends
export iov_send_recv() and use it in iov_send() and iov_recv()
rename qemu_sendv to iov_send, change proto and move declarations to iov.h
change qemu_iovec_to_buf() to match other to,from_buf functions
consolidate qemu_iovec_copy() and qemu_iovec_concat() and make them consistent
allow qemu_iovec_from_buffer() to specify offset from which to start copying
consolidate qemu_iovec_memset{,_skip}() into single function and use existing iov_memset()
rewrite iov_* functions
change iov_* function prototypes to be more appropriate
virtio-serial-bus: use correct lengths in control_out() message
Conflicts:
tests/Makefile
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kwolf/for-anthony: (24 commits)
block: Factor bdrv_read_unthrottled() out of guess_disk_lchs()
qtest: Tidy up temporary files properly
fdc: Drop broken code for user-defined floppy geometry
fdc_test: introduce test_sense_interrupt
fdc_test: update media_change test
fdc: fix interrupt handling
fdc: rewrite seek and DSKCHG bit handling
block: introduce bdrv_swap, implement bdrv_append on top of it
block: copy over job and dirty bitmap fields in bdrv_append
raw: hook into blkdebug
blkdebug: optionally tie errors to a specific sector
blkdebug: store list of active rules
blkdebug: pass getlength to underlying file
blkdebug: tiny cleanup
blkdebug: remove sync i/o events
sheepdog: traverse pending_list from the first for each time
sheepdog: split outstanding list into inflight and pending
sheepdog: make sure we don't free aiocb before sending all requests
sheepdog: use coroutine based socket functions in coroutine context
sheepdog: restart I/O when socket becomes ready in do_co_req()
...
* kraxel/usb.55:
usb-host: add trace events for iso xfers
usb: fix interface initialization
usb: split endpoint init and reset
usb-redir: Correctly handle the usb_redir_babble usbredir status
ehci: Kick async schedule on wakeup in the non companion case
usb-ehci: Fix an assert whenever isoc transfers are used
ehci: don't flush cache on doorbell rings.
ehci: fix td writeback
ehci: fix ehci_qh_do_overlay
* bonzini/scsi-next:
scsi: Fix transfer length for READ POSITION commands.
scsi: Add basic support for SCSI media changer commands.
scsi: Ensure command and transfer lengths are set for all SCSI devices
scsi: Fix LOAD_UNLOAD
scsi: Fix data length == SCSI_SENSE_BUF_SIZE
virtio-scsi: do not crash on adding buffers to the event queue
megasas: LSI Megaraid SAS HBA emulation
megasas: Add header file
ISCSI: force use of sg for SMC and SSC devices
ISCSI: Add SCSI passthrough via scsi-generic to libiscsi
scsi-disk: implement READ DISC INFORMATION
atapi: implement READ DISC INFORMATION
scsi: add a qdev property for the disk's WWN
scsi: simplify handling of the VPD page length field
bdrv_get_floppy_geometry_hint() fails to store through its parameter
drive when bs has a geometry hint. Makes fd_revalidate() assign
random crap to drv->drive.
Has been broken that way for ages. Harmless, because:
* The only way to set a geometry hint is -drive if=none,cyls=...
Since commit c219331e, probably unintentional.
* The only use of drv->drive is as argument to another
bdrv_get_floppy_geometry_hint(). Which doesn't use it, since the
geometry hint is still there.
Drop the broken code, ignore -drive parameter cyls, heads and secs for
floppies even with if=none, just like before commit c219331e. Matches
-help, which explains cyls, heads, secs as "hard disk physical
geometry".
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
If you call the SENSE INTERRUPT STATUS command while there is no interrupt
waiting you get as result unknown command.
Fixed status0 register handling for read/write/format commands.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This bit is cleared on every successful seek to a different track (cylinder).
The seek is also called on revalidate or on read/write/format commands which
also clear the DSKCHG bit.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Replace iso transfer fprintf's with trace points. Also rename existing
tracepoints so they all match usb_host_iso_*.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Create a new usb_ep_reset() function to reset endpoint state, without
re-initialiting the queues, so we don't unlink in-flight packets just
because usb-host has to re-parse the descriptor tables.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Commit 0f588df8b3, added code
to ehci_wakeup to kick the async schedule on wakeup, but the else
was positioned wrong making it trigger for devices which are routed
to the companion rather then to the ehci controller itself.
This patch fixes this. Note that the "programming style" with using the
return at the end of the companion block matches how the companion case
is handled in the other ports ops, and is done this way for consistency.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
hcd-ehci.c is missing an usb_packet_init() call for the ipacket UsbPacket
it uses for isoc transfers, triggering an assert (taking the entire vm down)
in usb_packet_setup as soon as any isoc transfers are done by a high speed
USB device.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Commit 4be23939ab makes ehci instantly
zap any unlinked queue heads when the guest rings the doorbell.
While hacking up uas support this turned out to be a problem. The linux
kernel can unlink and instantly relink the very same queue head, thereby
killing any async packets in flight. That alone isn't an issue yet, the
packet will canceled and resubmitted and everything is fine. We'll run
into trouble though in case the async packet is completed already, so we
can't cancel it any more. The transaction is simply lost then.
usb_ehci_qh_ptrs q (nil) - QH @ 39c4f000: next 39c4f122 qtds 00000000,00000001,39c50000
usb_ehci_qh_fields QH @ 39c4f000 - rl 0, mplen 0, eps 0, ep 0, dev 0
usb_ehci_qh_ptrs q 0x7f95feba90a0 - QH @ 39c4f000: next 39c4f122 qtds 00000000,00000001,39c50000
usb_ehci_qh_fields QH @ 39c4f000 - rl 0, mplen 0, eps 0, ep 0, dev 0
usb_ehci_qh_ptrs q 0x7f95fe515210 - QH @ 39c4f120: next 39c4f0c2 qtds 29dbce40,29dbc4e0,00000009
usb_ehci_qh_fields QH @ 39c4f120 - rl 4, mplen 512, eps 2, ep 1, dev 2
usb_ehci_packet_action q 0x7f95fe515210 p 0x7f95fdec32a0: alloc
usb_packet_state_change bus 0, port 2, ep 1, packet 0x7f95fdec32e0, state undef -> setup
usb_ehci_packet_action q 0x7f95fe515210 p 0x7f95fdec32a0: process
usb_uas_command dev 2, tag 0x2, lun 0, lun64 00000000-00000000
scsi_req_parsed target 0 lun 0 tag 2 command 42 dir 2 length 16384
scsi_req_parsed_lba target 0 lun 0 tag 2 command 42 lba 5933312
scsi_req_alloc target 0 lun 0 tag 2
scsi_req_continue target 0 lun 0 tag 2
scsi_req_data target 0 lun 0 tag 2 len 16384
usb_uas_scsi_data dev 2, tag 0x2, bytes 16384
usb_uas_write_ready dev 2, tag 0x2
usb_packet_state_change bus 0, port 2, ep 1, packet 0x7f95fdec32e0, state setup -> complete
usb_ehci_packet_action q 0x7f95fe515210 p 0x7f95fdec32a0: free
usb_ehci_qh_ptrs q 0x7f95fdec3210 - QH @ 39c4f0c0: next 39c4f002 qtds 29dbce40,00000001,00000009
usb_ehci_qh_fields QH @ 39c4f0c0 - rl 4, mplen 512, eps 2, ep 2, dev 2
usb_ehci_queue_action q 0x7f95fe5152a0: free
usb_packet_state_change bus 0, port 2, ep 2, packet 0x7f95feba9170, state async -> complete
^^^ async packets completes.
usb_ehci_packet_action q 0x7f95fdec3210 p 0x7f95feba9130: wakeup
usb_ehci_qh_ptrs q (nil) - QH @ 39c4f000: next 39c4f122 qtds 00000000,00000001,39c50000
usb_ehci_qh_fields QH @ 39c4f000 - rl 0, mplen 0, eps 0, ep 0, dev 0
usb_ehci_qh_ptrs q 0x7f95feba90a0 - QH @ 39c4f000: next 39c4f122 qtds 00000000,00000001,39c50000
usb_ehci_qh_fields QH @ 39c4f000 - rl 0, mplen 0, eps 0, ep 0, dev 0
usb_ehci_qh_ptrs q 0x7f95fe515210 - QH @ 39c4f120: next 39c4f002 qtds 29dbc4e0,29dbc8a0,00000009
usb_ehci_qh_fields QH @ 39c4f120 - rl 4, mplen 512, eps 2, ep 1, dev 2
usb_ehci_queue_action q 0x7f95fdec3210: free
usb_ehci_packet_action q 0x7f95fdec3210 p 0x7f95feba9130: free
^^^ endpoint #2 queue head removed from schedule, doorbell makes ehci zap the queue,
the (completed) usb packet is freed too and gets lost.
usb_ehci_qh_ptrs q (nil) - QH @ 39c4f000: next 39c4f0c2 qtds 00000000,00000001,39c50000
usb_ehci_qh_fields QH @ 39c4f000 - rl 0, mplen 0, eps 0, ep 0, dev 0
usb_ehci_qh_ptrs q 0x7f95feba90a0 - QH @ 39c4f000: next 39c4f0c2 qtds 00000000,00000001,39c50000
usb_ehci_qh_fields QH @ 39c4f000 - rl 0, mplen 0, eps 0, ep 0, dev 0
usb_ehci_queue_action q 0x7f9600dff570: alloc
usb_ehci_qh_ptrs q 0x7f9600dff570 - QH @ 39c4f0c0: next 39c4f122 qtds 29dbce40,00000001,00000009
usb_ehci_qh_fields QH @ 39c4f0c0 - rl 4, mplen 512, eps 2, ep 2, dev 2
usb_ehci_packet_action q 0x7f9600dff570 p 0x7f95feba9130: alloc
usb_packet_state_change bus 0, port 2, ep 2, packet 0x7f95feba9170, state undef -> setup
usb_ehci_packet_action q 0x7f9600dff570 p 0x7f95feba9130: process
usb_packet_state_change bus 0, port 2, ep 2, packet 0x7f95feba9170, state setup -> async
usb_ehci_packet_action q 0x7f9600dff570 p 0x7f95feba9130: async
^^^ linux kernel relinked the queue head, ehci creates a new usb packet,
but we should have delivered the completed one instead.
usb_ehci_qh_ptrs q 0x7f95fe515210 - QH @ 39c4f120: next 39c4f002 qtds 29dbc4e0,29dbc8a0,00000009
usb_ehci_qh_fields QH @ 39c4f120 - rl 4, mplen 512, eps 2, ep 1, dev 2
So instead of instantly zapping the queue we'll set a flag that the
queue needs revalidation in case we'll see it again in the schedule.
ehci then checks that the queue head fields addressing / describing the
endpoint and the qtd pointer match the cached content before reusing it.
Cc: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Only write back the dwords the hc is supposed to update. Should not
make a difference in theory as the guest must not touch the td while
it is active to avoid races. But it is still more correct.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
BARs are registered in init functions from memory regions created
by the drivers. Exit functions destroy those memory regions.
By unregistering the io regions after exit(), we're calling
memory_region_del_subregion on freed memory. Don't do that. The
option rom comes along for the ride because it's more symmetric
to how it's created.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Not a single driver has any possibility of failure on their
exit function, let's keep it that way.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Make the state fields rx_desc_addr and tx_desc_addr uint32_t;
this matches the VMStateDescription, and also conforms to how
hardware works: the registers don't magically become larger
if the device is attached to a CPU with a larger physical
address size. It also fixes a compile failure if the
target_phys_addr_t type is changed to 64 bits.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Board support for Kyoto Micro's KZM-ARM11-01, an evaluation board built
around the Freescale i.MX31.
Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com>
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement the Freescale i.MX31 advanced vectored interrupt controller, at least
to the extent it is used by Linux 3.x
Vectors are not implemented.
Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com>
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement the timers on the Freescale i.MX31 SoC.
This is not a complete implementation, but gives enough for
Linux to boot and run. In particular external triggers, which are
not useful under QEMU, are not implemented.
Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com>
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
For Linux to be able to work out how fast its clocks are going, so
that timer ticks come approximately at the right time, it needs to
be able to query the clock control module (CCM).
This is the start of a CCM implementation. It currently knows only about
the MCU, HSP and IPG clocks --- i.e., the ones used to feed the periodic
and general purpose timers.
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement the Freescale i.MX UART. This uart is used in a variety of
SoCs, including some by Motorola, as well as in the Freescale i.MX
series.
This patch gives only a `bare-bones' implementation, enough to run Linux
or OKL4, but that's about it.
Signed-off-by: Philip O'Sullivan <philipo@ok-labs.com>
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
We want to mirror whole IROM and should pass zero instead of
EXYNOS4210_IROM_BASE_ADDR (though it equals to zero too) since
memory_region_init_alias takes an offset within an original
region as an argument.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
START/STOP bit was not cleaned correctly.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
After some long period of time Linux kernel hanged due to
ptimer_get_count may return 0 before timer interrupt occurs,
thus, causing FRC to jump back in time
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The transfer length depends on the specific service action
code, as defined in the SCSI stream commands spec section 7.7.
Up to now only the extended form was supported.
Signed-off-by: Christian Hoff <christian.hoff@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This adds basic support for SCSI media changer commands.
Not all commands are supported as of now, but enough to cover
basic functionality.
Signed-off-by: Christian Hoff <christian.hoff@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
scsi-generic relies on those values to be correct, so it is important that
those values are initialized properly for all device types.
Reported-by: Christian Hoff <christian.hoff@de.ibm.com>
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Change operation code of LOAD_UNLOAD command to 0x1b as described in
section 7.3 of the SCSI Stream Commands spec.
Signed-off-by: Christian Hoff <christian.hoff@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Fix the edge case where the sense data length is exactly the same
as SCSI_SENSE_BUF_SIZE.
This makes SCSI requests work that use all of the available 95 byte
sense data.
Signed-off-by: Christian Hoff <christian.hoff@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The event queue is not supported yet and the handler does not
have to do much anyway when buffers are added. However, the
handler is called unconditionally by the virtio layer, and this
results in a crash as soon as buffers are added to the event
queue because we pass NULL.
Reported-by: Bryan Venteicher <bryanv@daemoninthecloset.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch adds an emulation for the LSI Megaraid SAS 8708EM2 HBA.
I've tested it to work with Linux, Windows Vista, and Windows7.
Signed-off-by: Hannes Reinecke <hare@suse.de>
[ Squashed trivial changes from Andreas Faerber, rebased over IOMMU
and QBus changes - Paolo ]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Update iscsi to allow passthrough of SG_IO scsi commands when the iscsi
device is forced to be scsi-generic.
Implement both bdrv_ioctl() and bdrv_aio_ioctl() in the iscsi backend,
emulate the SG_IO ioctl and pass the SCSI commands across to the
iscsi target.
This allows end-to-end passthrough of SCSI all the way from the guest,
to qemu, via scsi-generic, then libiscsi all the way to the iscsi target.
To activate this you need to specify that the iscsi lun should be treated
as a scsi-generic device.
Example:
-device lsi -device scsi-generic,drive=MyISCSI \
-drive file=iscsi://10.1.1.125/iqn.ronnie.test/1,if=none,id=MyISCSI
Note, you can currently not boot a qemu guest from a scsi device.
Note,
This only works when the host is linux, since the emulation relies on
definitions of SG_IO from the scsi-generic implementation in the
linux kernel.
It should be fairly easy to re-implement some structures similar enough
for non-linux hosts to do the same style of passthrough via a fake
scsi generic layer and libiscsi if need be.
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This command is not necessary for CD-ROM and DVD-ROM, but some versions of
udev trip on its absence.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This command is not necessary for CD-ROM and DVD-ROM, but some versions of
udev trip on its absence.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently the pseries machine emulation does not support DMA for emulated
PCI devices, because the PAPR spec always requires a (guest visible,
paravirtualized) IOMMU which was not implemented. Now that we have
infrastructure for IOMMU emulation, we can correct this and allow PCI DMA
for pseries.
With the existing PAPR IOMMU code used for VIO devices, this is almost
trivial. We use a single DMAContext for each (virtual) PCI host bridge,
which is the usual configuration on real PAPR machines (which often have
_many_ PCI host bridges).
Cc: Alex Graf <agraf@suse.de>
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch adds some hooks to let PCI devices and busses use the new IOMMU
infrastructure. When IOMMU support is enabled, each PCI device now
contains a DMAContext * which is used by the pci_dma_*() wrapper functions.
By default, the contexts are initialized to NULL, assuming no IOMMU.
However the platform or host bridge code which sets up the PCI bus can use
pci_setup_iommu() to set a function which will determine the correct
DMAContext for a given PCI device.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The pseries platform already contains an IOMMU implementation, since it is
essential for the platform's paravirtualized VIO devices. This IOMMU
support is currently built into the implementation of the VIO "bus" and
the various VIO devices.
This patch converts this code to make use of the new common IOMMU
infrastructure.
We don't yet handle synchronization of map/unmap callbacks vs. invalidations,
this will require some complex interaction with the kernel and is not a
major concern at this stage.
Cc: Alex Graf <agraf@suse.de>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch adds the basic infrastructure necessary to emulate an IOMMU
visible to the guest. The DMAContext structure is extended with
information and a callback describing the translation, and the various
DMA functions used by devices will now perform IOMMU translation using
this callback.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The USB UHCI and EHCI drivers were converted some time ago to use the
pci_dma_*() helper functions. However, this conversion was not complete
because in some places both these drivers do DMA via the usb_packet_map()
function in usb-libhw.c. That function directly used
cpu_physical_memory_map().
Now that the sglist code uses DMA wrappers properly, we can convert the
functions in usb-libhw.c, thus conpleting the conversion of UHCI and EHCI
to use the DMA wrappers.
Note that usb_packet_map() invokes dma_memory_map() with a NULL invalidate
callback function. When IOMMU support is added, this will mean that
usb_packet_map() and the corresponding usb_packet_unmap() must be called in
close proximity without dropping the qemu device lock - otherwise the guest
might invalidate IOMMU mappings while they are still in use by the device
code.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The AHCI device can provide both PCI and SysBus AHCI device
emulations. For this reason, it wasn't previously converted to use
the pci_dma_*() helper functions. Now that we have universal DMA
helper functions, this converts AHCI to use them.
The DMAContext is obtained from pci_dma_context() in the PCI case and
set to NULL in the SysBus case (i.e. we assume for now that a SysBus
AHCI has no IOMMU translation).
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
dma-helpers.c contains a number of helper functions for doing
scatter/gather DMA, and various block device related DMA. Currently,
these directly access guest memory using cpu_physical_memory_*(),
assuming no IOMMU translation.
This patch updates this code to use the new universal DMA helper
functions. qemu_sglist_init() now takes a DMAContext * to describe
the DMA address space in which the scatter/gather will take place.
We minimally update the callers qemu_sglist_init() to pass NULL
(i.e. no translation, same as current behaviour). Some of those
callers should pass something else in some cases to allow proper IOMMU
translation in future, but that will be fixed in later patches.
Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The OHCI device emulation can provide both PCI and SysBus OHCI
implementations. Because of this, it was not previously converted to
use the PCI DMA helper functions.
This patch converts it to use the new universal DMA helper functions.
In the PCI case, it obtains its DMAContext from pci_dma_context(), in
the SysBus case, it uses NULL - i.e. assumes for now that there will
be no IOMMU translation for a SysBus OHCI.
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Not that long ago, every device implementation using DMA directly
accessed guest memory using cpu_physical_memory_*(). This meant that
adding support for a guest visible IOMMU would require changing every
one of these devices to go through IOMMU translation.
Shortly before qemu 1.0, I made a start on fixing this by providing
helper functions for PCI DMA. These are currently just stubs which
call the direct access functions, but mean that an IOMMU can be
implemented in one place, rather than for every PCI device.
Clearly, this doesn't help for non PCI devices, which could also be
IOMMU translated on some platforms. It is also problematic for the
devices which have both PCI and non-PCI version (e.g. OHCI, AHCI) - we
cannot use the the pci_dma_*() functions, because they assume the
presence of a PCIDevice, but we don't want to have to check between
pci_dma_*() and cpu_physical_memory_*() every time we do a DMA in the
device code.
This patch makes the first step on addressing both these problems, by
introducing new (stub) dma helper functions which can be used for any
DMA capable device.
These dma functions take a DMAContext *, a new (currently empty)
variable describing the DMA address space in which the operation is to
take place. NULL indicates untranslated DMA directly into guest
physical address space. The intention is that in future non-NULL
values will given information about any necessary IOMMU translation.
DMA using devices must obtain a DMAContext (or, potentially, contexts)
from their bus or platform. For now this patch just converts the PCI
wrappers to be implemented in terms of the universal wrappers,
converting other drivers can take place over time.
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Cc: Richard Henderson <rth@twiddle.net>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
A while back, we introduced the dma_addr_t type, which is supposed to
be used for bus visible memory addresses. At present, this is an
alias for target_phys_addr_t, but this will change when we eventually
add support for guest visible IOMMUs.
There are some instances of target_phys_addr_t in the code now which
should really be dma_addr_t, but can't be trivially converted due to
missing features which this patch corrects.
* We add DMA_ADDR_BITS analagous to TARGET_PHYS_ADDR_BITS. This is
important where we need to make a compile-time (#if) based on the
size of dma_addr_t.
* We add a new helper macro to create device properties which take a
dma_addr_t, currently an alias to DEFINE_PROP_TADDR().
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Commit ff71f2e8ca prevent the possible
crash during initialization of linux driver by checking the operating
mode.This seems too strict as:
- the real card could still work in mode other than normal
- some buggy driver who does not set correct opmode after eeprom
access
So, considering rx ring address were reset to zero (which could be
safely trated as an address not intened to DMA to), in order to
both letting old guest work and preventing the unexpected DMA to
guest, we can forbid packet receiving when rx ring address is zero.
Tested-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
From Markus:
Before:
$ qemu-system-x86_64 -display none -drive if=ide
qemu-system-x86_64: Device needs media, but drive is empty
qemu-system-x86_64: Initialization of device ide-hd failed
[Exit 1 ]
After:
$ qemu-system-x86_64 -display none -drive if=ide
qemu-system-x86_64: Device needs media, but drive is empty
Segmentation fault (core dumped)
[Exit 139 (SIGSEGV)]
This error always existed as qdev_init() frees the object. But QOM
goes a bit further and purposefully sets the class pointer to NULL to
help find use-after-free. It worked :-)
Cc: Andreas Faerber <afaerber@suse.de>
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* stefanha/trivial-patches:
tci: Support INDEX_op_bswap64_i64
target-i386: Use QEMU instead of Qemu
Makefile.hw: avoid overly large 'make clean' rm command
configure: Fix typo
arm_gic: Send dbg msgs to stderr not stdout
checkpatch: Add QEMU specific rule
qemu-config: Use QEMU instead of Qemu
libqtest: Fix socket_accept() to pass address_len
Makefile.user: Define CONFIG_USER_ONLY for libuser/
Makefile: Remove macro qapi-dir
Makefile: Remove BUILD_DIR from qapi-dir
Install 'bepo' keymap already included in Qemu source
* kraxel/usb.54:
uhci: fix uhci_async_cancel_all
usb-host: live migration support
usb-host: attach only to running guest
ehci: tracing improvements
usb: restore USBDevice->attached on vmload
ehci: add live migration support
* 'ppc-for-upstream' of git://repo.or.cz/qemu/agraf: (72 commits)
PPC: BookE206: Bump MAS2 to 64bit
PPC: BookE: Support 32 and 64 bit wide MAS2
PPC: Extract SPR dump generation into its own function
PPC: Add e5500 CPU target
PPC: BookE: Make ivpr selectable by CPU type
PPC: BookE: Implement EPR SPR
PPC: Add support for MSR_CM
PPC: Add some booke SPR defines
uImage: increase the gzip load size
PPC: e500: allow users to set the /compatible property via -machine
dt: make setprop argument static
PPC: e500: Refactor serial dt generation
dt: Add global option to set phandle start offset
PPC: e500: Extend address/size of / to 64bit
PPC: e500: Define addresses as always 64bit
PPC: e500: Use new SOC dt format
PPC: e500: Use new MPIC dt format
Revert "dt: temporarily disable subtree creation failure check"
PPC: e500: enable manual loading of dtb blob
PPC: e500: dt: use target_phys_addr_t for ramsize
...
* 's390-for-upstream' of git://repo.or.cz/qemu/agraf:
s390: stop target cpu on sigp initial reset
s390: make kvm_stat work on s390
kvm: Update kernel headers
s390x: fix s390 virtio aliases
* 'arm-devs.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm:
arm_boot: Conditionalised DTB command line update
cadence_ttc: changed master clock frequency
cadence_gem: avoid stack-writing buffer-overrun
hw/a9mpcore: Fix compilation failure if physaddrs are 64 bit
hw/omap.h: Drop broken MEM_VERBOSE tracing
hw/armv7m_nvic: Make the NVIC a freestanding class
hw/arm_gic: Move CPU interface memory region setup into arm_gic_init
hw/arm_gic.c: Make NVIC interrupt numbering a runtime setting
hw/arm_gic: Make CPU target registers RAZ/WI on uniprocessor
hw/arm_gic: Add qdev property for GIC revision
hw/armv7m_nvic: Use MemoryRegions for NVIC specific registers
hw/arm_gic: Move NVIC specific reset to armv7m_nvic_reset
hw/arm_gic: Remove the special casing of NCPU for the NVIC
hw/arm_gic: Remove NVIC ifdefs from gic_state struct
arm_boot: Fix typos in comment
ARM: Exynos4210 IRQ: Introduce new IRQ gate functionality.
On the e500 series, accessing SPR_EPR magically turns into an access at
that CPU's IACK register on the MPIC. Implement that logic to get kernels
that make use of that feature work.
Signed-off-by: Alexander Graf <agraf@suse.de>
Recent u-boot has different defines for its gzip extract buffer, but the
common ground seems to be 64MB. So let's bump it up to that, enabling me
to load my test image again ;).
Signed-off-by: Alexander Graf <agraf@suse.de>
Device trees usually have a node /compatible, which indicate which machine
type we're looking at. For quick prototyping, it can be very useful to change
the contents of that node via the command line.
Thus, introduce a new option to -machine called dt_compatible, which when
set changes the /compatible contents to its value.
Signed-off-by: Alexander Graf <agraf@suse.de>
When generating serial port device tree nodes, we duplicate quite a bit
of code, because there are 2 of them in the mpc8544ds board we emulate.
Shove the generating code into a function, so we duplicate less code.
Signed-off-by: Alexander Graf <agraf@suse.de>
We want to be able to support >= 4GB of RAM. To do so, we need to be able
to tell the guest OS how much RAM it has.
However, that information today is capped to 32bit. So let's extend the
offset and size fields to 64bit, so we can fit in big addresses and even
one day - if we wish to do so - map devices above 32bit.
Signed-off-by: Alexander Graf <agraf@suse.de>
Every time we use an address constant, it needs to potentially fit into
a 64bit physical address space. So let's define things accordingly.
Signed-off-by: Alexander Graf <agraf@suse.de>
Due to popular demand, let's clean up the soc node a bit and use
more recent dt notions.
Requested-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Due to popular demand, we're updating the way we generate the MPIC
node and interrupt lines based on what the current state of art is.
Requested-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
We want to be able to override the automatically created device tree
by using the -dtb option. Implement this for the mpc8544ds machine.
Signed-off-by: Alexander Graf <agraf@suse.de>
We're passing the ram size as uint32_t, capping it to 32 bits atm.
Change to target_phys_addr_t (uint64_t) to make sure we have all
the bits.
Signed-off-by: Alexander Graf <agraf@suse.de>
We have a nice 64bit helper to ease the device tree generation and
make the code more readable when creating 64bit 2-cell parameters.
Use it when generating the device tree.
Signed-off-by: Alexander Graf <agraf@suse.de>
Now that we are dynamically creating the dtb, it's really useful to
be able to dump the created blob for debugging.
This patch implements a -machine dumpdtb=<file> option for e500 that
dumps the dtb exactly in the form the guest would get it to disk. It
can then be analyzed by dtc to get information about the guest
configuration.
Signed-off-by: Alexander Graf <agraf@suse.de>
Now that all of the device tree bits are generated during runtime, we
can get rid of the device tree blob and instead start from scratch with
an empty device tree.
Signed-off-by: Alexander Graf <agraf@suse.de>
Now that we're moving all of the device tree generation from an external
pre-execution generated blob to runtime generation using libfdt, we absolutely
must have libfdt around.
This requirement was there before already, as the only way to not require libfdt
with e500 was to not use -kernel, which was the only way to boot the mpc8544ds
machine. This patch only manifests said requirement in the build system.
Signed-off-by: Alexander Graf <agraf@suse.de>
This adds a qemu-specific hypervisor call to the pseries machine
which allows to do what amounts to memmove, memcpy and xor over
regions of physical memory such as the framebuffer.
This is the simplest way to get usable framebuffer speed from
SLOF since the framebuffer isn't mapped in the VRMA and so would
otherwise require an hcall per 8 bytes access.
The performance is still not great but usable, and can be improved
with a more complex implementation of the hcall itself if needed.
This also adds some documentation for the qemu-specific hypercalls
that we add to PAPR along with a new qemu,hypertas-functions property
that mirrors ibm,hypertas-functions and provides some discoverability
for the new calls.
Note: I chose note to advertise H_RTAS to the guest via that mechanism.
This is done on purpose, the guest uses the normal RTAS interfaces
provided by qemu (including SLOF) which internally calls H_RTAS.
We might in the future implement part (or even all) of RTAS inside the
guest like IBM's firmware does and replace H_RTAS with some finer grained
set of private hypercalls.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
We were incorrectly g_free'ing an object that isn't allocated
in one error path and failed to release it completely in another
This fixes qemu crashes with some cases of IO errors.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
The core tcg/kvm code for ppc64 now has at least the outline
capability to support pagesizes beyond the standard 4k and 16MB. The
CPUState is initialized with information advertising the available
pagesizes and their correct encodings, and under the right KVM setup
this will be populated with page sizes beyond the standard.
Obviously guests can't use the extra page sizes unless they know
they're present. For the pseries machine, at least, there is a
defined method for conveying exactly this information, the
"ibm-segment-page-sizes" property in the guest device tree.
This patch generates this property using the supported page size
information that's already in the CPUState.
Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Alexander Graf <agraf@suse.de>
The initial TLB entry is supposed to help us run the guest -kernel payload.
This means the guest needs to be able to access its own memory, the initrd
memory and the device tree.
So far we only statically reserved a TLB entry from [0;256M[. This patch
fixes it to span from [0;dt_end[, allowing the guest payload to access
everything initially.
Reported-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Old size: 8 MB (traditional upstream qemu value).
New size: 16 MB (traditional qemu-kvm value).
Also adds compat properties so old machine types
keep the old default values.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
In preperation for supporting a larger framebuffer for multiple monitors
on a single card, add a property to qxl vgamem_size_mb, and corresponding
byte sized vgamem_size, and use instead of VGA_RAM_SIZE.
[ kraxel: simplify property handling, add sanity checks ]
[ kraxel: fix mode copying ]
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Zap the global VGA_RAM_SIZE #define, make the vga ram size configurable
for standard vga and vmware vga. cirrus and qxl are left with a fixed
size (and private VGA_RAM_SIZE #define) for now.
qxl needs some non-trivial adjustments in the mode list handling deal
with a runtime-configurable size, which calls for a separate qxl patch.
cirrus emulates cards which have 2 MB (isa) and 4 MB (pci), so I guess
it would make sense to use these sizes. That change would break
migration though, so I left it fixed at 8 MB size. Making it
configurabls is pretty pointless for cirrus as we have to match real
hardware.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The vgabios will check whenever any given video mode will fit into the
given video memory before adding it to the list of available modes, so
there is no need to keep xmax * ymax * 32bpp lower than VGA_RAM_SIZE.
Lets raise the limits a bit. Should be good for a few years, display
sizes are not growing that fast.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
soft_reset is called from any of:
* QXL_IO_RESET
* vga io
* pci reset handler
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested with linux guest. Not sure how to check actual performance affect
of this. Checked with the previously send traceevent that the kvm ioctl
to start/stop dirty logging is being called.
(KVM_SET_USER_MEMORY_REGION).
Signed-off-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Convert uses of FLOPPY_ERROR to either FLOPPY_DPRINTF
(for implemented cases) or to use LOG_UNIMP (unimplemented).
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
A more complete history can be found here:
git://xenbits.xensource.com/qemu-xen-unstable.git
Signed-off-by: Jiang Yunhong <yunhong.jiang@intel.com>
Signed-off-by: Shan Haitao <haitao.shan@intel.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This patch move the msi definition from apic.c to apic-msidef.h. So it can be
used also by other .c files.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
A more complete history can be found here:
git://xenbits.xensource.com/qemu-xen-unstable.git
Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: Guy Zana <guy@neocleus.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
A more complete history can be found here:
git://xenbits.xensource.com/qemu-xen-unstable.git
Signed-off-by: Allen Kay <allen.m.kay@intel.com>
Signed-off-by: Guy Zana <guy@neocleus.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This new property will be used to specify a host pci device address.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
The purpose is to have a more generic pci_for_each_device by passing an extra
argument to the function called on every device.
This patch will be used in a next patch.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
We are using this in our quirk lookup provided by patch
titled: Introduce Xen PCI Passthrough, PCI config space helpers.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
The timer was deadlocking when the interval was set too low. It would cause a
flood of timer events and the CPU would halt indefinately. This is a known issue
and theres a generic workaround in place in ptimer on ptimer_set_limit(),
however the Xilinx timer uses ptimer_set_count() instead of set_limit. Changed
the call to set_count() to an equivalent call of set_limit() instead, which
brings the workaround into play.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
The Xilinx timer does not interact with the qemu_timer API, so dont include it.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
In the next release of Xen (4.2), xs.h became deprecated.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Because xs.h will be remove in future release of Xen, this patch removes the
extra includes of this headers.
Also, it removes the extra includes of xenctrl.h and xen/io/xenbus.h as there
already are in xen_common.h.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
We update the QTAILQ in the loop, thus we must use the SAFE version
to make sure we don't touch the queue struct after freeing it.
https://bugzilla.novell.com/show_bug.cgi?id=766310
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
QEMU exposes its version to the guest's hardware and in some cases that is wrong
(e.g. Windows prints messages about driver updates when you switch
the QEMU version).
There is a new field now on the struct QEmuMachine, hw_version, which may
contain the version that the specific machine should report. If that field is
set, then that machine will report that version to the guest.
Signed-off-by: Crístian Viana <vianac@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This patch adds two things. First it allows QEMU to distinguish between
regular powerdown and S4 powerdown. Later separate QMP notification will
be added for S4 powerdown. Second it allows S3/S4 states to be disabled
from QEMU command line. Some guests known to be broken with regards to
power management, but allow to use it anyway. Using new properties
management will be able to disable S3/S4 for such guests.
Supported system state are passed to a firmware using new fw_cfg file.
The file contains 6 byte array. Each byte represents one system
state. If byte at offset X has its MSB set it means that system state
X is supported and to enter it guest should use the value from lowest 3
bits.
Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
I think I understand enough of what's going on in these rules to ensure this is
right. But I could certainly use a second or third opinion...
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The DTB command line should only be overwritten if the user provides a command
line with -append. Otherwise whatever command line was in the DTB should stay
unchanged.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Change the timer clock frequency to 133MHz which is correct. the old 2.5MHz
value was for the pre-silicon emulation platform.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Use sizeof(rxbuf)-size (not sizeof(rxbuf-size)) as the number
of bytes to clear. The latter would always clear 4 or 8
bytes, possibly writing beyond the end of that stack buffer.
Alternatively, depending on the value of the "size" parameter,
it could fail to initialize the end of "rxbuf".
Spotted by coverity.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Reviewed-by: Peter A.G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Add a cast to a logging printf to avoid a compilation failure
if target_phys_addr_t is a 64 bit type. (This is better than
using TARGET_FMT_plx because we really don't need a full
16 digit hex string to print the offset into a device.)
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Eric Blake <eblake@redhat.com>
Remove the MEM_VERBOSE tracing option from omap.h. This worked by
intercepting cpu_register_io_memory() calls; it has been broken
since cpu_register_io_memory() was removed in favour of the
MemoryRegion API.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Rearrange the GIC and NVIC so both are straightforward
subclasses of a common class, rather than having the NVIC
source file textually include arm_gic.c.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Remove more NVIC ifdefs by moving the code to setup the CPU interface
memory regions into the GIC specific arm_gic_init() function rather
than the gic_init() function. Rename the latter to more closely
reflect what it's now actually doing.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Make the minor tweaks to interrupt numbering used by the NVIC
a runtime setting rather than a compile time one, so we can
drop more NVIC ifdefs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The GIC spec says that the CPU target registers should RAZ/WI
for uniprocessor implementations. Implement this, which also
conveniently lets us drop an NVIC ifdef.
Annoyingly, the 11MPCore's GIC is the odd one out, since
it always has these registers, even in uniprocessor configs.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
GIC behaviour can be different between revision 1 and
2 of the architectural GIC specification; we also have
to handle the legacy 11MPCore GIC, which is different
again in some places. Introduce a qdev property so we
can behave appropriately.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Implement the NVIC specific register areas using a set of
overlaid MemoryRegions in a container, rather than by having
the arm_gic read/write functions use special purpose callbacks.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Move the NVIC specific bits of reset to the NVIC's own
reset function, rather than using ifdefs in the common
arm_gic reset.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Drop the special casing of NCPU=1 for the NVIC. This slightly
increases the amount of memory used by its state structure,
but removes some ifdeffery and means we can safely move the
GIC state into a common subclass structure.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Remove some NVIC ifdefs from the gic_state struct and its
state save/load functions. This means there are some fields
in it which are present for the NVIC but not used, but means
it always has the same layout and can be pulled out into a
common subclass.
Note that the addition of irq_target[] to the save/load
struct for the NVIC requires a vmstate version bump.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Andreas Färber <afaerber@suse.de>
mimicing -> mimicking
thei -> the
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
New IRQ gate consists of n_in input qdev gpio lines and one
output sysbus IRQ line. The output IRQ level is formed as OR
between all gpio inputs.
Signed-off-by: Evgeny Voevodin <e.voevodin@samsung.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* afaerber-or/qom-next-2: (22 commits)
qom: Push error reporting to object_property_find()
qdev: Remove qdev_prop_exists()
qbus: Initialize in standard way
qbus: Make child devices links
qdev: Connect busses with their parent devices
qdev: Convert busses to QEMU Object Model
qdev: Move SysBus initialization to sysbus.c
qdev: Use wrapper for qdev_get_path
qdev: Remove qdev_prop_set_defaults
qdev: Clean up global properties
qdev: Move bus properties to abstract superclasses
qdev: Move bus properties to a separate global
qdev: Push "type" property up to Object
arm_l2x0: Rename "type" property to "cache-type"
m48t59: Rename "type" property to "model"
qom: Assert that public types have a non-NULL parent field
qom: Drop type_register_static_alias() macro
qom: Make Object a type
qom: Add class_base_init
qom: Add object_child_foreach()
...
* qmp/queue/qmp:
build: install qmp-commands.txt
Add rate limiting of RTC_CHANGE, BALLOON_CHANGE & WATCHDOG events
Add event notification for guest balloon changes
Fix some more license versions (GPL2+ instead of GPL2)
monitor: Fix memory leak with readline completion
qmp: do not include monitor.h from qapi-types-core.h
qmp: include monitor.h when needed
kvm: add missing include files
* kwolf/for-anthony: (39 commits)
qemu-iotests: add 036 autoclear feature bit test
qemu-iotests: add qcow2.py set-feature-bit command
fdc-test: introduced qtest read_without_media
fdc: fix implied seek while there is no media in drive
qcow2: fix autoclear image header update
xen: Don't peek behind the BlockDriverState abstraction
xen: Don't change -drive if=xen device name during machine init
block: Replace bdrv_get_format() by bdrv_get_format_name()
qemu-img: document qed format on qemu-img man page
qemu-iotests: COW with many AIO requests on the same cluster
qemu-iotests: Some backing file COW tests
qcow2: Fix avail_sectors in cluster allocation code
qcow2: Simplify calculation for COW area at the end
qcow2: always operate caches in writeback mode
ide: support enable/disable write cache
block: always open drivers in writeback mode
block: add bdrv_set_enable_write_cache
block: copy enable_write_cache in bdrv_append
savevm: flush after saving vm state
block: flush in writethrough mode after writes
...
* mst/tags/for_anthony:
pci_bridge_dev: fix error path in pci_bridge_dev_initfn()
qdev: release parent properties on dc->init failure
msi: Use msi/msix_present more consistently
msi: Invoke msi/msix_write_config from PCI core
msi: Guard msi/msix_write_config with msi_present
msi: Invoke msi/msix_reset from PCI core
msi: Guard msi_reset with msi_present
ahci: Clean up reset functions
intel-hda: Fix reset of MSI function
ahci: Fix reset of MSI function
rtl8139: honor RxOverflow flag in can_receive method
shpc: unparent device before free
Some of the virtio devices have the same frontend name, but actually
implement different devices behind the scenes through aliases.
The indicator which device type to use is the architecture. On s390, we
want s390 virtio devices. On everything else, we want PCI devices.
Reflect this in the alias selection code. This way we fix commands like
-device virtio-blk on s390x which with this patch applied select the
correct virtio-blk-s390 device rather than virtio-blk-pci.
Reported-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Avoids duplicated error_set().
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Also drop error_set() in object_property_del().]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Can be replaced everywhere with object_property_find().
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Move code to an initfn and finalizer.
Replace do_qbus_create_inplace() with qbus_realize().
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Make qbus children show up as link<> properties. There is no stable
addressing for qbus children so we use an unstable naming convention.
This is okay in QOM though because the composition name is expected to
be what's stable.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This makes SysBus part of the root hierarchy and all busses children of
their respective parent DeviceState.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This is far less interesting than it sounds. We simply add an Object to each
BusState and then register the types appropriately. Most of the interesting
refactoring will follow in the next patches.
Since we're changing fundamental type names (BusInfo -> BusClass), it all needs
to convert at once. Fortunately, not a lot of code is affected.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Made all new bus TypeInfos static const.]
[AF: Made qbus_free() call object_delete(), required {qom,glib}_allocated]
Signed-off-by: Andreas Färber <afaerber@suse.de>
TYPE_SYSTEM_BUS will be local to hw/sysbus.c, so move existing references
to main_system_bus and system_bus_info there.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This makes it easier to remove it from BusInfo.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Drop now unnecessary NULL initialization in scsibus_get_dev_path()]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Instead, qdev_property_add_static can set the default.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Now that global properties do not depend on buses anymore, set
them directly in the device instance_init function.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
In qdev, each bus in practice identified an abstract superclass, but
this was mostly hidden. In QOM, instead, these abstract classes are
explicit so we can move bus properties there.
All bus property walks are removed, and all device property walks
are changed to look along the class hierarchy instead.
We would have duplicates if class A defines some properties and its
subclass B does not define any, because class_b->props will be
left equal to class_a->props.
The solution here is to reintroduce the class_base_init TypeInfo
callback, that was present in one of the early QOM versions but
removed (on my request...) before committing.
This breaks global bus properties, an obscure feature when used
with the command-line which is actually useful and used when used by
backwards-compatible machine types. So this patch also adjusts the
global bus properties in hw/pc_piix.c to refer to the abstract class.
Globals and other properties must be modified in the same patch to
avoid complications related to initialization ordering.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Simple code movement in order to simplify future refactoring.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Now that Object is a type, add an instance_init function and push
the "type" property from qdev to there.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Resolves a name conflict with the qdev "type" property that is about to
be moved to Object.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
This resolves a name conflict with the qdev "type" property that is
about to move into Object.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Add braces missing in original code.]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Finally, complete the fully specified interface. msix_add_config()
gets folded into msix_init() because we now have quite a few parameters
to pass and rolling it in let's us error earlier, avoiding the ugly
unwind exit path. msix_mmio_setup() also gets rolled in, just because
it's redundant to rediscover offsets when we already have them for
such a tiny function.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
These don't have to be contiguous. Size them to only what
they need and use separate MemoryRegions for the vector
table and PBA.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
MSIX, like PCI, is little endian. Specifying native is wrong here,
but we need to check the rest of the file to determine if it's
as simple as flipping this macro.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
What's this doing so far from msix_mmio_ops?
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Trivial conversion, failed to have an uninit before and after.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
msi_init() takes over a BAR without really specifying or allowing
specification of how it does so. Instead, let's split it into
two interfaces, one fully specified, and one trivially easy. This
implements the latter. msix_init_exclusive_bar() takes over
allocating and filling a PCI BAR _exclusively_ for the use of MSIX.
When used, the matching msi_uninit_exclusive_bar() should be used
to tear it down.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
msix.h calls the PCIDevice * parameter "dev" almost everywhere except
the msix_write_config declaration. Fix the inconsistency.
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
No user in sight for msix_bar_size.
bar_size for all users is aligned, let's simply
require this instead of trying to fix up invalid input.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
After setting a balloon target value, applications have to
continually poll 'query-balloon' to determine whether the
guest has reacted to this request. The virtio-balloon backend
knows exactly when the guest has reacted though, and thus it
is possible to emit a JSON event to tell the mgmt application
whenever the guest balloon changes.
This introduces a new 'qemu_balloon_changed()' API which is
to be called by balloon driver backends, whenever they have
a change in balloon value. This takes the 'actual' balloon
value, as would be found in the BalloonInfo struct.
The qemu_balloon_change API emits a JSON monitor event which
looks like:
{"timestamp": {"seconds": 1337162462, "microseconds": 814521},
"event": "BALLOON_CHANGE", "data": {"actual": 944766976}}
* balloon.c, balloon.h: Introduce qemu_balloon_changed() for
emitting balloon change events on the monitor
* hw/virtio-balloon.c: Invoke qemu_balloon_changed() whenever
the guest changes the balloon actual value
* monitor.c, monitor.h: Define QEVENT_BALLOON_CHANGE
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The Windows uses 'READ' command at the start of an instalation
without checking the 'dir' register. We have to abort the transfer
with an abnormal termination if there is no media in the drive.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
First offender is xen_config_dev_blk()'s use of disk->bdrv->filename.
Get the filename from disk->opts instead. Same result, except for
snapshots: there, we now get the filename specified by the user
instead of the name of the temporary image created by bdrv_open().
Should be an improvement.
Second offender is blk_init()'s use of blkdev->bs->drv->format_name.
Simply use the appropriate interface to get the format name.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
A "top" BlockDriverState has a non-empty device_name. If the user
doesn't specify one with -drive parameter id, the system supplies a
default name.
xen_config_dev_blk() changes this name, during machine initialization.
Naughty. Don't do that.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Enabling or disabling the write cache is done with the SET FEATURES
command. The command can be issued with sg_sat_set_features from
sg3-utils.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Use the appropriate interface instead.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This should fix the following build failure:
/home/buildbot/slave-public/block_mingw32/build/hw/xtensa_lx60.c: In function 'lx_init':
/home/buildbot/slave-public/block_mingw32/build/hw/xtensa_lx60.c:212: warning: implicit declaration of function 'drive_get'
/home/buildbot/slave-public/block_mingw32/build/hw/xtensa_lx60.c:212: warning: nested extern declaration of 'drive_get'
/home/buildbot/slave-public/block_mingw32/build/hw/xtensa_lx60.c:212: error: 'IF_PFLASH' undeclared (first use in this function)
/home/buildbot/slave-public/block_mingw32/build/hw/xtensa_lx60.c:212: error: (Each undeclared identifier is reported only once
/home/buildbot/slave-public/block_mingw32/build/hw/xtensa_lx60.c:212: error: for each function it appears in.)
/home/buildbot/slave-public/block_mingw32/build/hw/xtensa_lx60.c:216: error: dereferencing pointer to incomplete type
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Changed device name to xlnx,axi-dma. This is the exact name of the device in the
Xilinx EDK development tools.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Changed device name to xlnx,axi-ethernet. This is the exact name of the
device in the xilinx EDK development tools.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Even though the xilinx tools do have C_ on all params by default, drop this
for consistency with all the other xilinx IP (I.E. param names are the xilinx
names without the C_ prefix)
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Changed device name to xlnx,xps-ethernetlite. This is the exact name of the
device in the xilinx EDK development tools.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Changed "txpingpong" prop to "tx-ping-pong". Same for rx. This is done to
make the property name exactly match what is output by the xilinx tools for
this IP.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Changed device name to xlnx,xps-intc. This is the exact name of the device
in the xilinx EDK development tools.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Changed device name to xlnx,xps-timer. This is the exact name of the device
in the xilinx EDK development tools.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
The configurable property for this IP in the Xilinx tools is a boolean switch
"one-timer-only" that flicks this timer from being dual channel to single.
Updated QEMU to work the same way for better match with the IP core and its TRM.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Added a reasonable default frequency for the xilinx timer (the 62MHz from
s3adsp machine model).
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Changed device name to xlnx,xps-uartlite. This is the exact name of the device
in the xilinx EDK development tools.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
The axidma irq orders are reversed in both the device model and the instantion.
Undid both reversal (for no net change). Also needs to be reversed for
consistency with Xilinx tools IRQ listing.
Signed-off-by: Peter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Speeds up the build.
xilinx_ethlite uses tswap32() and is thus target-dependent.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Currently, we do not properly cleanup, if pci_bridge_dev_initfn
fails to initialize properly. Make sure to call pci_bridge_exitfn()
in the error path.
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
While looking into hot-plugging bridges, I can create a qemu segfault via:
$ device_add pci-bridge
Bridge chassis not specified. Each bridge is required to be assigned a unique chassis id > 0.
**
ERROR:qom/object.c:389:object_delete: assertion failed: (obj->ref == 0)
I'm proposing to fix this by adding a call to 'object_unparent()', before the
call to qdev_free(). I see there is already a precedent for this usage pattern as
seen in qdev_simple_unplug_cb():
/* can be used as ->unplug() callback for the simple cases */
int qdev_simple_unplug_cb(DeviceState *dev)
{
/* just zap it */
object_unparent(OBJECT(dev));
qdev_free(dev);
return 0;
}
Signed-off-by: Jason Baron <jbaron@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
qemu_iovec_concat() is currently a wrapper for
qemu_iovec_copy(), use the former (with extra
"0" arg) in a few places where it is used.
Change skip argument of qemu_iovec_copy() from
uint64_t to size_t, since size of qiov itself
is size_t, so there's no way to skip larger
sizes. Rename it to soffset, to make it clear
that the offset is applied to src.
Also change the only usage of uint64_t in
hw/9pfs/virtio-9p.c, in v9fs_init_qiov_from_pdu() -
all callers of it actually uses size_t too,
not uint64_t.
One added restriction: as for all other iovec-related
functions, soffset must point inside src.
Order of argumens is already good:
qemu_iovec_memset(QEMUIOVector *qiov, size_t offset,
int c, size_t bytes)
vs:
qemu_iovec_concat(QEMUIOVector *dst,
QEMUIOVector *src,
size_t soffset, size_t sbytes)
(note soffset is after _src_ not dst, since it applies to src;
for memset it applies to qiov).
Note that in many places where this function is used,
the previous call is qemu_iovec_reset(), which means
many callers actually want copy (replacing dst content),
not concat. So we may want to add a wrapper like
qemu_iovec_copy() with the same arguments but which
calls qemu_iovec_reset() before _concat().
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
* afaerber-or/qom-cpu-3a: (27 commits)
target-s390x: Pass S390CPU to s390_cpu_restart()
s390-virtio: Let s390_cpu_addr2state() return S390CPU
s390-virtio: Use cpu_s390x_init() to obtain S390CPU
target-s390x: Let cpu_s390x_init() return S390CPU
xen_machine_pv: Use cpu_x86_init() to obtain X86CPU
arm_pic: Pass ARMCPU to arm_pic_init_cpu()
arm_boot: Pass ARMCPU to arm_load_kernel()
xilinx_zynq: Use cpu_arm_init() to obtain ARMCPU
pxa2xx_gpio: Store ARMCPU in PXA2xxGPIOInfo
pxa2xx_pic: Store ARMCPU in PXA2xxPICState
pxa2xx: Pass ARMCPU to pxa2xx_pic_init()
exynos4210: Use cpu_arm_init() to store ARMCPU
vexpress: Use cpu_arm_init() to obtain ARMCPU
realview: Use cpu_arm_init() to obtain ARMCPU
arm_boot: Pass ARMCPU to arm_boot_info::secondary_cpu_reset_hook()
arm_boot: Pass ARMCPU to arm_boot_info::write_secondary_boot()
versatilepb: Use cpu_arm_init() to obtain ARMCPU
musicpal: Use cpu_arm_init() to obtain ARMCPU
integratorcp: Use cpu_arm_init() to obtain ARMCPU
strongarm: Use cpu_arm_init() to store ARMCPU in StrongARMState
...
* afaerber-or/qom-next-1:
target-i386: Use uint32 visitor for [x]level properties
qdev: Remove PropertyInfo range checking
qdev: Switch property accessors to fixed-width visitor interfaces
qdev: Use int32_t container for devfn property
qapi: Add String visitor coverage to serialization unit tests
qapi: String visitor, use %f representation for floats
qapi: Unit tests for visitor-based serialization
qapi: Add Visitor interfaces for uint*_t and int*_t
Due to a offset between the clock used to generate the in-kernel
count_load_time (CLOCK_MONOTONIC) and the clock used for processing this
in userspace (vm_clock), reading back the output of PIT channel 2 via
port 0x61 was broken. One use cases that suffered from it was the CPU
frequency calibration of SeaBIOS, which also affected IDE/AHCI timeouts.
This fixes it by calibrating the offset between both clocks on
kvm_pit_get and adjusting the kernel value before saving it in the
userspace state. As the calibration only works while the vm_clock is
running, we cache the in-kernel state across stopped phases.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Legacy (non-pvops) gntdev drivers may require this to be done when the
number of grants intended to be used simultaneously exceeds a certain
driver specific default limit.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
kvm_put_apic_state's attempt to clear *kapic before setting its
bits cleared sizeof(void*) bytes (no more than 8) rather than the
intended 1024 (KVM_APIC_REG_SIZE) bytes. Spotted by coverity.
Signed-off-by: Jim Meyering <meyering@redhat.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Needed for moving halted field to CPUState.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Tested-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Pass it through to arm_pic_cpu_handler().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com> (for exynos)
In particular this simplifies the &s->mpu->cpu->env expression again.
first_cpu and ->next_cpu are expected to be QOM'ified later.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com> (for exynos)
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Prepares for moving halted field into CPUState.
Add missing braces.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Prepares for moving halted field to CPUState.
Add missing braces.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Cleans up after storing ARMCPU in PXA2xxState.
Prepares for storing ARMCPU in PXA2xxPICState.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Needed for arm_pic_init_cpu().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com>
Adapt exynos4210 and highbank accordingly.
The parameter itself is unused.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com> (for exynos)
omap_mpu_state_s::env was renamed to cpu while changing its type.
With n800_s::cpu of type omap_mpu_state_s* this leads to s->cpu->cpu.
Rename the field to "mpu" to avoid this ugliness.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
The file is located in target-ppc/, not hw/.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Range checking in PropertyInfo is now used only for pci_devfn
properties and some error reporting. Remove all code that implements
it in the various property types, and the now unused fields.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[AF: Fix blocksize min/max for 32-bit hosts by using const int64_t.]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This introduces {get,set}_uint{8,16,32,64}() functions for the
respective qdev types.
TADDR and VLAN are switched to explicit int64, BLOCKSIZE to uint16.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Valid range for devfn is -1 to 255 (-1 for automatic assignment). We do
not currently validate this due to devfn being stored as a uint32_t.
This can lead to segfaults and other strange behavior.
We could technically just cast it to int32_t to implement the checking,
but this will not work for visitor-based setting where we may do additional
bounds-checking based on target container type, which is int32_t for this
case.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This adds visitor interfaces for fixed-width integers types.
Implementing these in visitors is optional, otherwise we fall back to
visit_type_int() (int64_t) with some additional bounds checking to avoid
integer overflows for cases where the value fetched exceeds the bounds
of our target C type.
Signed-off-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
[LE: exclude negative values in uint*_t Visitor interfaces]
Signed-off-by: Laszlo Ersek <lersek@redhat.com>
[AF: Merged fix by Laszlo]
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reorder arguments to be more natural, readable and
consistent with other iov_* functions, and change
argument names, from:
iov_from_buf(iov, iov_cnt, buf, iov_off, size)
to
iov_from_buf(iov, iov_cnt, offset, buf, bytes)
The result becomes natural English:
copy data to this `iov' vector with `iov_cnt'
elements starting at byte offset `offset'
from memory buffer `buf', processing `bytes'
bytes max.
(Try to read the original prototype this way).
Also change iov_clear() to more general iov_memset()
(it uses memset() internally anyway).
While at it, add comments to the header file
describing what the routines actually does.
The patch only renames argumens in the header, but
keeps old names in the implementation. The next
patch will touch actual code to match.
Now, it might look wrong to pay so much attention
to so small things. But we've so many badly designed
interfaces already so the whole thing becomes rather
confusing or error prone. One example of this is
previous commit and small discussion which emerged
from it, with an outcome that the utility functions
like these aren't well-understdandable, leading to
strange usage cases. That's why I paid quite some
attention to this set of functions and a few
others in subsequent patches.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Original code has one thing to process (cur_len), requests to
convert from iovec to buf another thing (len which is actually max_len),
and processes something else (copied). Whole thing is very difficult
to understand, even if it does a right thing. The iov_to_buf()
conversion in this case will always return cur_len, because it is
the length of the iovec it was asked to process, and the size we
asked to convert is the same or larger, and iov_to_buf() will stop
at reaching either iov or buf.
Make the code saner by doing the only sane thing: dropping `copied'
which is always the same as `cur_len' but just introduces questions.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Also this functions is better invoked by the core than by each and every
device. This allows to drop the config_write callbacks from ich and
intel-hda.
CC: Alexander Graf <agraf@suse.de>
CC: Gerd Hoffmann <kraxel@redhat.com>
CC: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Terminate msi/msix_write_config early if support is not enabled. This
allows to remove checks at the caller site if MSI is optional.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
There is no point in pushing this burden to the devices, they tend to
forget to call them (like intel-hda, ahci, xhci did). Instead, reset
functions are now called from pci_device_reset. They do nothing if
MSI/MSI-X is not in use.
CC: Alexander Graf <agraf@suse.de>
CC: Gerd Hoffmann <kraxel@redhat.com>
CC: Isaku Yamahata <yamahata@valinux.co.jp>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Properly register reset functions via the device class.
CC: Alexander Graf <agraf@suse.de>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Call msi_reset on device reset as still required by the core.
CC: Gerd Hoffmann <kraxel@redhat.com>
CC: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Call msi_reset on device reset as still required by the core.
CC: Alexander Graf <agraf@suse.de>
CC: qemu-stable@nongnu.org
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Some drivers (Linux' 8139too among them) rely on the NIC
injecting an interrupt in the event of a receive buffer overflow
and, accordingly, set the RxOverflow bit in the interrupt
mask. Unfortunately rtl8139's can_receive method ignores the
RxOverflow flag, which may lead to a situation where rtl8139
stops receiving packets (can_receive returns 0) when the receive
buffer becomes full.
If the driver eventually read from the receive buffer or reset
the card the emulator could recover from this situation. However
some implementations only do this upon receiving an interrupt
with either RxOK or RxOverflow set in the ISR; interrupt that
will never come because QEMU's flow control mechanisms would
prevent rtl8139 from receiving any packet.
Letting packets go through when the overflow interrupt is enabled
makes the QEMU emulator compliant to the spec and solves the
problem.
This patch should fix a relatively common (in our experience)
network stall observed when running enterprise distros with
rtl8139 as the NIC; in some cases the 8139too device driver gets
loaded and when under heavy load the network eventually stops
working.
Reported-by: Hayato Kakuta <kakuta.hayato@oss.ntt.co.jp>
Tested-by: Hayato Kakuta <kakuta.hayato@oss.ntt.co.jp>
Acked-by: Igor Kovalenko <igor.v.kovalenko@gmail.com>
Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Move the framecount check out of the loop and use the new
ehci_update_frindex function to skip frames if needed.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Adapt the frame timer sleeps according to the actual needs. With the
periodic schedule being active we'll have to wakeup 1000 times per
second and go check for work. In case only the async schedule is active
we can be more lazy though. When idle ehci will increate the sleep time
step by step, so qemu has to wake up less frequently. When we'll see
transactions on the bus or the guest fiddles with the schedule
enable/disable bits we'll return to a 1000 Hz wakeup rate and full
speed. With both schedules disabled we stop wakeups altogether.
This patch also drops the freq property (configures wakeup rate
manually) which is obsoleted by this patch.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When the enable bits for controller / async schedule / periodic schedule
change just make sure we kick the frame timer and let
ehci_advance_periodic_state and ehci_advance_async_state handle the
controller state changes.
This will make ehci set USBSTS_HALT when the controller shutdown is
actually done, once both schedules are in inactive state and the
USBSTS_PSS and USBSTS_ASS bits are clear.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Update the status register in the ehci_set_state function, to make sure
the guest-visible register is in sync with our internal schedule state.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add helper functions to query whenever the async / periodic schedule
is enabled or not. Put them into use too.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Check for the reset bit first when processing USBCMD register writes.
Also break out of the switch, there is no need to check the other bits.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
When a packet completes which happens to be part of the async schedule
kick the async bottom half for processing,
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Keep track whenever a EHCIQueue is part of the async or periodic
schedule. This way we don't have to pass around the async flag
everywhere but can look it up from the EHCIQueue struct when needed.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add packet queuing. Follow the qTD chain to see if there are more
packets we can submit. Improves performance on larger transfers,
especially with usb-host, as we don't have to wait for a packet to
finish before sending the next one to the host for processing.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Keep a USBDevice pointer in EHCIQueue so we don't have to lookup the
device on each usb packet submission.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This way it is possible to use ehci_execute to submit others than the
first EHCIPacket of the EHCIQueue.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add a separate EHCIPacket struct and move fields over from EHCIQueue.
Preparing for supporting multiple packets per queue being in flight at
the same time. No functional changes yet.
Fix some codestyle issues along the way.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Properly register reset function via the device class.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Repace the running buffer pointer (scsi_buf) with a buffer offset
field (scsi_off). The later is alot easier to live-migrate.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Factor out packet completion to a separate function which
cares to get the MSDState->packet update right.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
usb-storage can't handle requests in one go as the data transfer can be
splitted into lots of usb packets. Because of that there can be
normal in-flight requests at savevm time and we need to handle that.
With other scsi hba's this happens only in case i/o is stopped due to
errors and there are pending requests which need to be restarted
(req->retry = true).
So, first we need to save req->retry and then handle the req->retry =
false case. Write requests are handled fine already. For read requests
we have to save the buffer as we will not restart the request (and thus
not refill the buffer) on the target host.
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
The multifunction ich9 ehci controller with uhci companions uses a
different interrupt pin for each function. The three uhci devices
get pins A, B and C, whereas ehci uses pin D. This way the guest
can assign different IRQ lines to each controller.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Cancel transactions before saving vmstate is pretty pointless and just
causes disruptions. We need to cancel them before *loading* vmstate,
but in that case uhci_reset() handles it already and no special action
is needed.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Add a property for the uhci bandwidth. Can be used to make uhci
emulation run faster than real hardware.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Schedule bottom half on completion of async packets instead of calling
uhci_process_frame directly. This way we run uhci_process_frame only
once in case multiple packets finish in a row. Also check whenever
there is bandwidth left before scheduling uhci_process_frame.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
uhci_process_frame() can be invoked multiple times per frame, so
accounting usb bandwith in a local variable doesn't fly, use a variable
in UHCIState instead. Also check the limit more frequently.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This completes the move to nested Makefiles for virtio and a few
other files that were not part of obj-TARGET-y, but still were
compiled separately for each target.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
After this patch, the libhw* directories will have a hierarchy
that mimics the source tree. This is useful because we do have
a couple of files there that are in the top source directory.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This patch starts converting the hw/ directory. Some files in hw/
are compiled once, some twice (32-/64-bit), some once per target.
Each category is moved in a separate patch.
After this patch, the files that are compiled once will show the
same hierarchy in the build tree as they do in the source tree,
for example hw/qdev.o instead of just qdev.o.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
* qmp/queue/qmp: (29 commits)
Add 'query-events' command to QMP to query async events
qapi: convert netdev_del
qapi: convert netdev_add
net: net_client_init(): use error_set()
net: purge the monitor object from all init functions
qemu-config: introduce qemu_find_opts_err()
qemu-config: find_list(): use error_set()
qerror: introduce QERR_INVALID_OPTION_GROUP
qemu-option: qemu_opts_from_qdict(): use error_set()
qemu-option: introduce qemu_opt_set_err()
qemu-option: opt_set(): use error_set()
qemu-option: qemu_opts_validate(): use error_set()
qemu-option: qemu_opt_parse(): use error_set()
qemu-option: parse_option_size(): use error_set()
qemu-option: parse_option_bool(): use error_set()
qemu-option: parse_option_number(): use error_set()
qemu-option: qemu_opts_create(): use error_set()
introduce a new monitor command 'dump-guest-memory' to dump guest's memory
make gdb_id() generally avialable and rename it to cpu_index()
target-i386: Add API to get note's size
...
* afaerber-or/qom-cpu-3: (74 commits)
Kill off cpu_state_reset()
linux-user: Use cpu_reset() after cpu_init() / cpu_copy()
bsd-user: Use cpu_reset() in after cpu_init()
leon3: Store SPARCCPU in ResetData
leon3: Use cpu_sparc_init() to obtain SPARCCPU
sun4u: Store SPARCCPU in ResetData
sun4u: Let cpu_devinit() return SPARCCPU
sun4u: Use cpu_sparc_init() to obtain SPARCCPU
sun4m: Pass SPARCCPU to {main,secondary}_cpu_reset()
sun4m: Use cpu_sparc_init() to obtain SPARCCPU
target-sparc: Let cpu_sparc_init() return SPARCCPU
cpu-exec: Use cpu_reset() in cpu_exec() for TARGET_PPC
virtex_ml507: Pass PowerPCCPU to main_cpu_reset()
virtex_ml507: Let ppc440_init_xilinx() return PowerPCCPU
virtex_ml507: Use cpu_ppc_init() to obtain PowerPCCPU
ppc_prep: Pass PowerPCCPU to ppc_prep_reset()
ppc_prep: Use cpu_ppc_init() to obtain PowerPCCPU
ppc_oldworld: Pass PowerPCCPU to ppc_heathrow_reset()
ppc_oldworld: Use cpu_ppc_init() to obtain PowerPCCPU
ppc_newworld: Pass PowerPCCPU to ppc_core99_reset()
...
Allows us to use cpu_reset() in place of cpu_state_reset() in
main_cpu_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Blue Swirl <blauwirbel@gmail.com>
We can now use cpu_reset() in place of cpu_state_reset() in
main_cpu_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Blue Swirl <blauwirbel@gmail.com>
Adapt e500 mpc8544ds machine accordingly.
Turn cpu_init() into a static inline function returning CPUPPCState for
backwards compatibility.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Alexander Graf <agraf@suse.de>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Hervé Poussineau <hpoussin@reactos.org>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Needed for pc_cpu_reset().
Also change return type to X86CPU.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Allows us to use cpu_reset() in place of cpu_state_reset() in
main_cpu_reset().
Also pass it through to its reset callbacks, while at it.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Max Filippov <jcmvbkbc@gmail.com>
Allows us to use cpu_reset() in place of cpu_state_reset() in
main_cpu_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Michael Walle <michael@walle.cc>
Allows us to use cpu_reset() in place of cpu_state_reset() in
main_cpu_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Michael Walle <michael@walle.cc>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Allows us to use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Fix tab indentations of comments, add braces, use cpu_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Also use cpu_reset() in place of cpu_state_reset().
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Peter Maydell <peter.maydell@linaro.org>
Callers are changed to use qerror_report_err() to keep their QError
semantics.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-By: Laszlo Ersek <lersek@redhat.com>
The only backend that really uses it is the socket one, which calls
monitor_get_fd(). But it can use 'cur_mon' instead.
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-By: Laszlo Ersek <lersek@redhat.com>
This commit converts qemu_opts_create() from qerror_report() to
error_set().
Currently, most calls to qemu_opts_create() can't fail, so most
callers don't need any changes.
The two cases where code checks for qemu_opts_create() erros are:
1. Initialization code in vl.c. All of them print their own
error messages directly to stderr, no need to pass the Error
object
2. The functions opts_parse(), qemu_opts_from_qdict() and
qemu_chr_parse_compat() make use of the error information and
they can be called from HMP or QMP. In this case, to allow for
incremental conversion, we propagate the error up using
qerror_report_err(), which keeps the QError semantics
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-By: Laszlo Ersek <lersek@redhat.com>
This reverts commit ff71f2e8ca. This is because
the linux 8139cp driver would leave the card in "Config Register Write Enable"
mode after the eeprom were read or write ( which is unexpected in the spec
). Also a physical 8139 card can still DMA into host memory in modes other than
Normal mode, so we need revert this commit to align with the behavior of
physical card.
The issue of 8139cp driver should be fixed in linux seperately.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* qemu-kvm/uq/master:
virtio/vhost: Add support for KVM in-kernel MSI injection
msix: Add msix_nr_vectors_allocated
kvm: Enable use of kvm_irqchip_in_kernel in hwlib code
kvm: Introduce kvm_irqchip_add/remove_irqfd
kvm: Make kvm_irqchip_commit_routes an internal service
kvm: Publicize kvm_irqchip_release_virq
kvm: Introduce kvm_irqchip_add_msi_route
kvm: Rename kvm_irqchip_add_route to kvm_irqchip_add_irq_route
msix: Introduce vector notifiers
msix: Invoke msix_handle_mask_update on msix_mask_all
msix: Factor out msix_get_message
kvm: update vmxcap for EPT A/D, INVPCID, RDRAND, VMFUNC
kvm: Enable in-kernel irqchip support by default
kvm: Add support for direct MSI injections
kvm: Update kernel headers
kvm: x86: Wire up MSI support for in-kernel irqchip
pc: Enable MSI support at APIC level
kvm: Introduce basic MSI support for in-kernel irqchips
Introduce MSIMessage structure
kvm: Refactor KVMState::max_gsi to gsi_count
As in the SATA and AHCI specifications, a FIS is 5 Dwords of 4 bytes
each, which comes to 20 bytes (decimal), not 0x20.
Signed-off-by: Daniel Verkamp <daniel@drv.nu>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Currently the sector value for the geometry is masked, even if the
user usesa command line parameter that explicitely gives a number.
This breaks dasd devices on s390. A dasd device can have
a physical block size of 4096 (== same for logical block size)
and a typcial geometry of 15 heads and 12 sectors per cyl.
The ibm partition detection relies on a correct geometry
reported by the device. Unfortunately the current code changes
12 to 8. This would be necessary if the total size is
not a multiple of logical sector size, but for dasd this
is not the case.
This patch checks the device size and only applies sector
mask if necessary.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: Christoph Hellwig <hch@lst.de>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The local variables ret, i are only used if __linux__ is defined.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Start VM with 8 multiple-function block devs, hot-removing
those block devs by 'device_del ...' would cause qemu abort.
| (qemu) device_del virti0-0-0
| (qemu) **
|ERROR:qom/object.c:389:object_delete: assertion failed: (obj->ref == 0)
It's a regression introduced by commit 57c9fafe
The whole PCI slot should be removed once. Currently only one func
is cleaned in pci_unplug_device(), if you try to remove a single
func by monitor cmd.
free_qdev() are called for all functions in slot,
but unparent_delete() is only called for one
function.
Signed-off-by: XXXX
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The previous multiboot load code did not treat the case where
load_end_addr was 0 specially. The multiboot specification says the
following:
* load_end_addr
Contains the physical address of the end of the data segment.
(load_end_addr - load_addr) specifies how much data to load. This
implies that the text and data segments must be consecutive in the
OS image; this is true for existing a.out executable formats. If
this field is zero, the boot loader assumes that the text and data
segments occupy the whole OS image file.
Signed-off-by: Scott Moser <smoser@ubuntu.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
With pc-0.12, we map the video RAM both through the PCI BAR (the guest does
this) and through a fixed mapping at 0xe0000000. The memory API doesn't allow
this double map, and aborts.
Fix by using an alias.
Reported-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* sstabellini/for_1.1_rc3:
Call xc_domain_shutdown with the reboot flag when the guest requests a reboot.
xen: Fix PV-on-HVM
xen_disk: properly update stats in ioreq_release()
xen_disk: use bdrv_aio_flush instead of bdrv_flush
xen_disk: remove syncwrite option
xen: disable rtc_clock
xen: do not initialize the interval timer and PCSPK emulator
* kwolf/for-anthony:
fdc-test: introduced qtest no_media_on_start and cmos qtest for floppy
fdc: fix media detection
fdc: floppy drive should be visible after start without media
qemu-iotests: mark 035 qcow2-only
qcow2: Check qcow2_alloc_clusters_at() return value
sheepdog: use heap instead of stack for BDRVSheepdogState
sheepdog: return -errno on error
sheepdog: mark image as snapshot when tag is specified
qemu-img: Explain how rebase operation can be used to perform a 'diff' operation.
qcow2: don't leak buffer for unexpected qcow_version in header
We have to set up 'media_changed' after guest start so floppy driver
could detect that there is no media in drive. For this purpose we call
'fdctrl_change_cb' instead of 'fd_revalidate' in 'fdctrl_connect_drives'.
'fd_revalidate' is called inside 'fdctrl_change_cb'.
We still have to set default drive geometry in 'fd_revalidate' even
if there is no media in drive. When you try to open (windows) or mount (linux)
floppy the driver tries to seek on track 1. Linux guest stuck in loop then
kernel crashes and windows guest prints error message.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
If you start guest with floppy drive but without media inserted, guest
still should see floppy drive pressent.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
When DEBUG_ES1370 is defined, the compiler shows these warnings:
hw/es1370.c: In function ?es1370_update_voices?:
hw/es1370.c:414: warning: format ?%d? expects type ?int?, but argument 3 has type ?size_t?
hw/es1370.c: In function ?es1370_writel?:
hw/es1370.c:582: warning: format ?%d? expects type ?int?, but argument 3 has type ?long int?
hw/es1370.c:592: warning: format ?%d? expects type ?int?, but argument 3 has type ?long int?
hw/es1370.c:609: warning: format ?%d? expects type ?int?, but argument 3 has type ?long int?
hw/es1370.c: In function ?es1370_readl?:
hw/es1370.c:751: warning: suggest braces around empty body in an ?if? statement
Fix the format strings and add the missing braces.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: malc <av1474@comtv.ru>
In the context of PV-on-HVM under Xen, the emulated nics are supposed to be
unplug before the guest drivers are initialized, when the guest write to a
specific IO port.
Without this patch, the guest end up with two nics with the same MAC, the
emulated nic and the PV nic.
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
The str allocated in visit_type_str was not freed.
The visit_type_str function is an input visitor(<QMP/String/etc>-to-native)
here, it will allocate memory for caller, so the caller is responsible for
freeing the memory.
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: dunrong huang <riegamaths@gmail.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
VIRTIO_BLK_F_SCSI is supposed to mean whether the host can *parse*
SCSI requests, not *execute* them. You could run QEMU with scsi=on
and a file-backed disk, and QEMU would fail all SCSI requests even
though it advertises VIRTIO_BLK_F_SCSI.
Because we need to do this to fix a migration compatibility problem
related to how QEMU is invoked by management, we must do this
unconditionally even on older machine types. This more or less assumes
that no one ever invoked QEMU with scsi=off.
Here is how testing goes:
- old QEMU, scsi=on -> new QEMU, scsi=on
- new QEMU, scsi=on -> old QEMU, scsi=on
- old QEMU, scsi=off -> new QEMU, scsi=on
- new QEMU, scsi=off -> old QEMU, scsi=on
ok (new QEMU has VIRTIO_BLK_F_SCSI, adding host features is fine)
- old QEMU, scsi=off -> new QEMU, scsi=off
ok (new QEMU has VIRTIO_BLK_F_SCSI, adding host features is fine)
- old QEMU, scsi=on -> new QEMU, scsi=off
ok, bug fixed
- new QEMU, scsi=on -> old QEMU, scsi=off
doesn't work (same as: old QEMU, scsi=on -> old QEMU, scsi=off)
- new QEMU, scsi=off -> old QEMU, scsi=off
broken by the patch
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
We will have to add another field to the virtio-blk configuration in
the next patch. Avoid a proliferation of arguments to virtio_blk_init.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Move it from virtio_blk_exit_pci to virtio_blk_exit.
This is included here because the next patch removes proxy->block.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Linux really looks only at scsi->errors for SG_IO requests; it does
not look at the virtio request status at all. Because of this, when
a SG_IO request is failed early with virtio_blk_req_complete(req,
VIRTIO_BLK_S_UNSUPP), without writing hdr.status, it will look like
a success to the guest.
This is their bug, but we can make it safe for older guests now by
forcing scsi->errors to have a non-zero value whenever a request
has to be failed.
But if we fix the bug in the guest driver, we will have another problem
because QEMU returns VIRTIO_BLK_S_IOERR if the status is non-zero, and
Linux translates that to -EIO. Rather, the guest should succeed the
request and pass the non-zero status via the userspace-provided SG_IO
structure. So, remove the case where virtio_blk_handle_scsi can
return VIRTIO_BLK_S_IOERR.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Allow load_image_targphys to load files on systems with more than 2G of
emulated memory by changing the max_sz parameter from an int to an
uint64_t.
Reviewed-by: Andreas F=E4rber <afaerber@suse.de>
Acked-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Make use of the new vector notifier to track changes of the MSI-X
configuration of virtio PCI devices. On enabling events, we establish
the required virtual IRQ to MSI-X message route and link the signaling
eventfd file descriptor to this vIRQ line. That way, vhost-generated
interrupts can be directly delivered to an in-kernel MSI-X consumer like
the x86 APIC.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Analogously to msi_nr_vectors_allocated, add a service for MSI-X. Will
be used by the virtio-pci layer.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Automatically commit route changes after kvm_add_routing_entry and
kvm_irqchip_release_virq. There is no performance relevant use case for
which collecting multiple route changes is beneficial. This makes
kvm_irqchip_commit_routes an internal service which assert()s that the
corresponding IOCTL will always succeed.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
We will add kvm_irqchip_add_msi_route, so let's make the difference
clearer.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
Vector notifiers shall be triggered by the MSI/MSI-X core whenever a
relevant configuration change is programmed by the guest. In case of
MSI-X, changes are reported when the effective mask (global &&
per-vector) alters its state. On unmask, the current vector
configuration is included in the event report. This allows users - e.g.
virtio-pci layer - to transfer this information to external MSI-X
routing subsystems - like vhost + KVM in-kernel irqchip.
This implementation only provides MSI-X support, but extension to MSI is
feasible and will be provided later on when adding support for KVM PCI
device assignment.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
In preparation of firing vector notifiers on mask changes, call
msix_handle_mask_update also from msix_mask_all. So far, this will have
no real effect.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
This helper will also be used by the upcoming config notifier.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
There are no outside references to virtio_portio.
Add missing 'static' specifier.
Reviewed-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Initrd load address is too low, it conflicts with kernel load
address:
rom: requested regions overlap (rom phdr #0: /tmp/vmlinux-debian-6.0.4-sparc64. free=0x0000000000742519, addr=0x0000000000400000)
rom loading failed
Fix by making the initrd address variable, load initrd after kernel
image. Use 64 bit variables instead of longs or 32 bit types.
Tested-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: John V. Baboval <john.baboval@virtualcomputer.com>
Signed-off-by: Tom Goetz <tom.goetz@virtualcomputer.com>
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
In the context of PV-on-HVM under Xen, the emulated nics are supposed to be
unplug before the guest drivers are initialized, when the guest write to a
specific IO port.
Without this patch, the guest end up with two nics with the same MAC, the
emulated nic and the PV nic.
Signed-off-by: Anthony PERARD <anthony.perard@citrix.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
While for the "normal" case (called from blk_send_response_all())
decrementing requests_finished is correct, doing so in the parse error
case is wrong; requests_inflight needs to be decremented instead.
Signed-off-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Use bdrv_aio_flush instead of bdrv_flush.
Make sure to call bdrv_aio_writev/readv after the presync bdrv_aio_flush is fully
completed and make sure to call the postsync bdrv_aio_flush after
bdrv_aio_writev/readv is fully completed.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
This patch removes a dead option.
The same can be achieved removing BDRV_O_NOCACHE and BDRV_O_CACHE_WB
from the flags passed to bdrv_open.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
PIT and PCSPK are emulated by the hypervisor so we don't need to emulate
them in Qemu: this patch prevents Qemu from waking up needlessly at
PIT_FREQ on Xen.
Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Catch writes to the MSI MMIO region in the KVM APIC and forward them to
the kernel. Provide the kernel support GSI routing, this allows to
enable MSI support also for in-kernel irqchip mode.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Push msi_supported enabling to the APIC implementations where we can
encapsulate the decision more cleanly, hiding the details from the
generic code.
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Will be used for generating and distributing MSI messages, both in
emulation mode and under KVM.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
* sweil/for-1.1:
qemu-doc: Use QEMU instead of qemu for product name
qemu-doc: Fix executable name in examples
qemu-doc: Add missing parameter in description of -D option
configure: Use QEMU instead of Qemu
fix some common typos
qemu-timer: Fix wrong error message
Since most property types do not have a parse property now, this was
broken. Fix it by looking at the setter instead.
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Acked-by: Andreas F=E4rber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Most important here is to update our internal endpoint state so we know
the endpoint isn't in halted state any more. Without this usb-host
tries to clear halt again with the next data transfer submitted. Doing
this twice is (a) not correct and (b) confuses some usb devices,
rendering them non-functional in the guest.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
These were identified using: http://github.com/lyda/misspell-check
and run like this to create a bourne shell script using GNU sed's
-i option:
git ls-files|grep -vF .bin | misspellings -f - |grep -v '^ERROR:' |perl \
-pe 's/^(.*?)\[(\d+)\]: (\w+) -> "(.*?)"$/sed -i '\''${2}s!$3!$4!'\'' $1/'
Manually eliding the FP, "rela->real" and resolving "addres" to
address (not "adders") we get this:
sed -i '450s!thru!through!' Changelog
sed -i '260s!neccessary!necessary!' coroutine-sigaltstack.c
sed -i '54s!miniscule!minuscule!' disas.c
sed -i '1094s!thru!through!' hw/usb/hcd-ehci.c
sed -i '1095s!thru!through!' hw/usb/hcd-ehci.c
sed -i '21s!unecessary!unnecessary!' qapi-schema-guest.json
sed -i '307s!explictly!explicitly!' qemu-ga.c
sed -i '490s!preceeding!preceding!' qga/commands-posix.c
sed -i '792s!addres!address!' qga/commands-posix.c
sed -i '6s!beeing!being!' tests/tcg/test-mmap.c
Also, manually fix "arithmentic", spotted by Peter Maydell:
sed -i 's!arithmentic!arithmetic!' coroutine-sigaltstack.c
Signed-off-by: Jim Meyering <meyering@redhat.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
We have the following simplified callgraph in mips_fulong2e_init():
cpu_init() => cpu_mips_init()
object_new()
mips_cpu_initfn()
cpu_exec_init()
register_savevm(NULL, "cpu", cpu_index, CPU_SAVE_VERSION,
cpu_save, cpu_load, env)
register_savevm(NULL, "cpu", 0, 3, cpu_save, cpu_load, env)
CPU_SAVE_VERSION is defined as 3 in target-mips/cpu.h.
fulong2e instantiates one CPU, so its cpu_index is 0.
Thus the two are fully identical.
Therefore just remove the second call in fulong2e.
Signed-off-by: Juan Quintela <quintela@redhat.com>
[AF: Extend explanation in commit message]
Signed-off-by: Andreas Färber <afaerber@suse.de>
This was erroneously dropped in d6c730086c
(pc: reduce duplication in compat machine types).
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
ptr properties have neither a get/set or a print/parse which means that when
they're added they aren't treated as static or legacy properties.
Just assume properties like this are legacy properties and treat them as such.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Otherwise, non-string properties without a legacy counterpart are missed.
Also fix error propagation in object_property_print() itself.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Similarly to PCI interrupt mappings, the OBIO ones have to be initialized.
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* kwolf/for-anthony:
fdc: simplify media change handling
qcow2: lock on prealloc
block: make bdrv_create adopt coroutine
qcow2: Limit COW to where it's needed
sheepdog: switch to writethrough mode if cluster doesn't support flush
* bonzini/scsi-next:
scsi: Add assertion for use-after-free errors
scsi: remove useless debug messages
scsi: set VALID bit to 0 in fixed format sense data
scsi: do not require a minimum allocation length for REQUEST SENSE
scsi: do not require a minimum allocation length for INQUIRY
scsi: parse 16-byte tape CDBs
scsi: do not report bogus overruns for commands in the 0x00-0x1F range
scsi-disk: add dpofua property
scsi: change "removable" field to host many features
scsi: Specify the xfer direction for UNMAP and ATA_PASSTHROUGH commands
scsi: fix WRITE SAME transfer length and direction
scsi: fix refcounting for reads
scsi: prevent data transfer overflow
ISCSI: Add support for thin-provisioning via discard/UNMAP and bigger LUNs
Commit afe0a59535 added byte reads for TxStatus/TxAddr, but
broke 32-bit reads; the mask generation
(1 << (8 * size)) - 1
is unspecified in C for size >= sizeof(int), and in fact returns 0
on x86.
Fix by using a larger type.
Fixes (at least) Fedora 9 i386 with -machine kernel_irqchip=on. I
didn't see it with the qemu APIC implementation; may be due to timing
or (more likely) a tester error.
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This also (partly) fixes IBM OS/2 Warp 4.0 floppy installation, where
not all floppies have the same format (2x80x18 for the first ones,
2x80x23 for the next ones).
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
The Linux AC97 driver tests this bit to decide wether or not to show
an External amplifier toggle control.
This patch was also tested with a Windows XP guest without any issues.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
The Linux ac97 drivers does a number of register read/write tests to
see how much resolution a volume control actually has.
This patch takes this into account by masking out any bits written to
a volume control reg which should not be there according to the spec.
After this the Linux ac97 driver correctly uses a range of 0 - 0x1f for
the PCM out volume, as stated in the spec, and we can fix the FIXME
in update_combined_volume_out().
This patch was also tested with a Windows XP guest without any issues.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
After commit 19677a380a:
"hw/ac97: add support for volume control"
We are (correctly) using AC97_Record_Gain_Mute and not AC97_Line_In_Volume_Mute
for recording volume, but various places in hw/ac97 were still assumimg that
we are using AC97_Line_In_Volume_Mute for record volume control, this patch
fixes this.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
The Linux ac97 driver tries to see if optional things like video input
volume control are available in 2 ways:
1) See if the mute bit is set after reset, if it is no further tests are done
2) If the mute bit is not set it does a write/read test of the mute bit
This patch changes our ac97 to conform to what the Linux driver expects, it
initializes registers for things which we don't emulate to 0 (so the mute bit
is not set) and makes them read only.
This causes Linux to now longer show the following (functionless)
controls in alsamixer:
Master Mono vol + mute
3d Control toggle
PCM out pre / post 3d select
Surround toggle
CD vol + mute
Mic vol + mute
Mic boost toggle
Mic mic1 / mic2 select
Video vol + mute
Phone vol + mute
Beep mono vol + mute
Aux vol + mute
Mono "output mic" / "mix" select
Sigmatel 4 speaker stereo toggle
Sigmatel ADC 6Db att toggle
Sigmatel DAC 6Db att toggle
This patch was also tested with a Windows XP guest and there it also makes
a number of functionless mixer controls go away.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
The QEMU emulation which is currently used with Raspberry PI images
(qemu-system-arm -M versatilepb ...) accesses memory which was freed.
Valgrind output (extract):
==17857== Invalid write of size 4
==17857== at 0x24EB06: scsi_req_unref (scsi-bus.c:1273)
==17857== by 0x24FFAE: scsi_read_complete (scsi-disk.c:277)
==17857== by 0x152ACC: bdrv_co_em_bh (block.c:3363)
==17857== by 0x13D49C: qemu_bh_poll (async.c:71)
==17857== by 0x211A8C: main_loop_wait (main-loop.c:503)
==17857== by 0x207954: main_loop (vl.c:1555)
==17857== by 0x20E9C9: main (vl.c:3653)
==17857== Address 0x1c54383c is 12 bytes inside a block of size 260 free'd
==17857== at 0x4824B3A: free (vg_replace_malloc.c:366)
==17857== by 0x20ADFA: free_and_trace (vl.c:2250)
==17857== by 0x4899FC5: g_free (in /lib/libglib-2.0.so.0.2400.1)
==17857== by 0x24EB3B: scsi_req_unref (scsi-bus.c:1277)
==17857== by 0x24F003: scsi_req_complete (scsi-bus.c:1383)
==17857== by 0x25022A: scsi_read_data (scsi-disk.c:334)
==17857== by 0x24EB9F: scsi_req_continue (scsi-bus.c:1289)
==17857== by 0x1C7787: lsi_do_dma (lsi53c895a.c:575)
==17857== by 0x1C8CDA: lsi_execute_script (lsi53c895a.c:1147)
==17857== by 0x1C74EA: lsi_resume_script (lsi53c895a.c:510)
==17857== by 0x1C7ECD: lsi_transfer_data (lsi53c895a.c:746)
==17857== by 0x24EC90: scsi_req_data (scsi-bus.c:1307)
(There are some more similar messages.)
This patch adds an assertion which also detects those errors:
Calling scsi_req_unref is not allowed when the previous call
of that function has decremented refcount to 0, because in this
case req was freed.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Optional inquiry information is declared obsolete in the latest versions
of the standard; invalid CDBs or unsupported VPD pages are supported
can be diagnosed with trace_scsi_inquiry.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The requirements on the REQUEST SENSE buffer size are not in my copy of SPC
(SPC-4 r27) and not observed by LIO. Rip them out.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The requirements on the INQUIRY buffer size are not in my copy of SPC
(SPC-4 r27) and not observed by LIO. Rip them out.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The transfer length for these commands is different from the transfer
length of the corresponding disk commands, so parse it specially.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Interpreting cdb[4] == 0 as a request to transfer 256 blocks is only
needed for READ_6 and WRITE_6. No other command in that range needs
that special-casing, and the resulting overrun breaks scsi-testsuite's
attempt to use command 2 as a known-invalid command.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Linux expects REQ_FUA to be advertised only if WRITE+FUA is faster than
WRITE+SYNCHRONIZE CACHE, so we should not set the DPOFUA bit. However,
it is useful to have it for testing purposes, so add a qdev property to
set it.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
It is pointless to add a uint32_t field for every new feature.
Since we will need a new feature soon, convert accesses to "removable"
to look at bit 0 only.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
scsi_cmd_xfer_mode() is used to specify the xfer direction for SCSI
commands that come in from the guest. If the direction is set incorrectly
this will eventually cause QEMU to kernel-panic the guest.
Add UNMAP and ATAPASSTHROUGH as commands that send data to the device.
Without this change, recent kernels will send both UNMAP as well
as ATAPASSTHROUGH commands to any /dev/sg* device, which due to the
incorrect xfer direction very quickly causes the guest kernel to crash.
Example causing a crash without the patch applied:
./x86_64-softmmu/qemu-system-x86_64 -m 1024 -enable-kvm -cdrom linuxmint-12-gnome-dvd-64bit.iso -drive file=/dev/sg4,if=scsi,bus=0,unit=6
Signed-off-by: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Recently introduced FUA support also gave us a use-after-free
of the BlockAcctCookie within a SCSIDiskReq, due to unbalanced
reference counting.
The patch fixes this by making scsi_do_read look like a combination
of scsi_*_complete + scsi_*_data. It does both a ref (like
scsi_read_data) and an unref (like scsi_flush_complete).
Reported-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Valgrind reported this memory leak which occured a few times.
Test scenario:
qemu-system-i386 (no arguments), only BIOS started, terminate with
monitor command (quit).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Valgrind reported this memory leak which occured very often.
Test scenario:
qemu-system-i386 (no arguments), only BIOS started, terminate with
monitor command (quit).
v2:
Use error_free instead of g_free (hint from Andreas Färber, thanks).
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Andreas Färber <afaerber@suse.de>
When using Windows 8 with an AHCI disk drive, it issues a blue screen.
The reason is that WIN_SECURITY_FREEZE_LOCK / CFA_WEAR_LEVEL is not
supported by our ATA implementation, but Windows expects it to be there.
Since without security stuff implemented, the lock would be a nop anyway
and CFA_WEAR_LEVEL already is treated as a nop, let's just allow the cmd
for HD drives as well. That way Windows is happy.
Signed-off-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* agraf/s390-for-upstream:
s390: reset avail and used index on reboot
S390: dont call system_shutdown on disabled wait
S390: remove default cdrom, sd-card and floppy support
S390: support reboot for kvm on s390
S390: reboot: reset device pages on reboot
S390: fix error handling on kernel and initrd failures
S390: fix kernel_commandline handling
The default case in function spin_read should never be reached,
therefore the old code used assert(0) to abort QEMU.
This does not work when QEMU is compiled with macro NDEBUG defined.
In this case (and also when the compiler does not know that assert
never returns), there is a compiler warning because of the missing
return value.
Using hw_error allows an improved error message and aborts always.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
[agraf: use __func__]
Signed-off-by: Alexander Graf <agraf@suse.de>
Commit ed120055c7 (Implement PAPR VPA
functions for pSeries shared processor partitions) introduced the
deregister_dtl() function and typo "emv" as name of its argument.
This went unnoticed because the code in that function can access the
global variable "env" so that no build failure resulted.
Fix the argument to read "env". Resolves LP#986241.
Signed-off-by: Peter Portante <peter.portante@redhat.com>
Acked-by: Andreas Färber <afaerber@suse.de>
[agraf: fixed typo in commit message]
Signed-off-by: Alexander Graf <agraf@suse.de>
Currently the pseries PCI code uses a somewhat strange scheme of PCI irq
allocation - one per slot up to a maximum that's greater than the usual 4.
This scheme more or less worked, because we were able to tell the guest the
irq mapping in the device tree, however it's a bit odd and may break
assumptions in the future. Worse, the array used to construct the dev
tree interrupt map was mis-sized, we got away with it only because it
happened that our SPAPR_PCI_NUM_LSI value was greater than 7.
This patch changes the pseries PCI code to use the same interrupt swizzling
scheme as is standardized for PCI to PCI bridges. This makes for better
consistency, deals better with any devices which use multiple interrupt
pins and will make life easier in the future when we add passthrough of
what may be either a host bridge or a PCI to PCI bridge. This won't break
existing guests, because they don't assume a particular mapping scheme for
host bridges, but just follow what we tell them in the device tree (also
updated to match, of course). This patch also fixes the allocation of the
irq map.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
PAPR virtual IO (VIO) devices require a unique, but otherwise arbitrary,
"address" used as a token to the hypercalls which manipulate them.
Currently the pseries machine code does an ok job of allocating these
addresses when the legacy -net nic / -serial and so forth options are used
but will fail to allocate them properly when using -device.
Specifically, you can use -device if all addresses are explicitly assigned.
Without explicit assignment, only one VIO device of each type (network,
console, SCSI) will be assigned properly, any further ones will attempt
to take the same address leading to a fatal error.
This patch fixes the situation by adding a proper address allocator to the
VIO "bus" code. This is used both by -device and the legacy options and
default devices. Addresses can still be explicitly assigned with -device
options if desired.
This patch changes the (guest visible) numbering of VIO devices, but since
their addresses are discovered using the device tree and already differ
from the numbering found on existing PowerVM systems, this does not break
compatibility.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
Initial Mapping creation for secondary CPU in SMP was missing new MMU API.
Signed-off-by: Bharat Bhushan <bharat.bhushan@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
reset the guest vring avail/used idx fields, otherwise it's possible
that old values remain in memory which would cause a reboot to fail
with a "Guest moved used index" message
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This patch simply disables CDROM, SD card and floppy support for the
s390 virtio machine. Without this patch, a default CDROM drive would
get added which has currently no backing on s390.
Signed-off-by: Einar Lueck <elelueck@de.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This patch fixes reboot on s390 by resetting the device
page on reboot.
Signed-off-by: Jens Freimann <jfrei@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
If the user specifies a non-existing or non-accessable kernel or initrd
qemu does not fail, instead it ipls into the system, which then falls
into a program check loop due to the zeroed memory with no kernel.
Lets add some sanity checks.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
The current handling of kernel parameters is broken. The pointer
is always valid, even if no -kernel or -append is specified.
We must check if the kernel rom address is valid instead,
otherwise qemu might segfault.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
Initially, vga_get_text_resolution returns a text resolution of 1 x 1
(vga register values are 0).
This is visible during MIPS Malta boot with SDL. It also occurs with the
i386 or x86_64 system emulation when it runs in single step mode:
QEMU changes the size of the SDL window to the smallest possible value
which is supported by the window manager. As this is not the calculated
size, QEMU switches to scaled mode. When the BIOS or the VGA driver sets
the normal text resolution, the window stays small and displays
microscopic characters.
Ignoring text resolutions of 1 x 1 or less avoids these problems.
A similar workaround already exists for too large resolutions.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Register is one byte-wide (as per specification), so there is no need
to specify endianness.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
[AF: Limit access validity to size 1]
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Speaker init has been added in 506b7ddf88,
but audio subsystem init was missing.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Keep the PC values as defaults but allow to override them for PReP.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
This fixes a crash in PReP emulation when using DMA controller to access
floppy drive.
Signed-off-by: Hervé Poussineau <hpoussin@reactos.org>
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
* 'target-arm.for-upstream' of git://git.linaro.org/people/pmaydell/qemu-arm:
target-arm: Make SETEND respect bswap_code (BE8) setting
target-arm: Move A9 config_base_address reset value to ARMCPU
target-arm: Change cpu_arm_init() return type to ARMCPU
Move the A9 config_base_address cp15 register reset value to
ARMCPU. This should become a QOM property so that the Highbank
board can set it without having to pull in cpu-qom.h, but at
least this avoids the implicit dependency on reset ordering
that the previous workaround had.
Cc: Mark Langsdorf <mark.langsdorf@calxeda.com>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Andreas Färber <afaerber@suse.de>
* kraxel/usb.49:
usb-uhci: update irq line on reset
usb: add serial number generator
usb-redir: Not finding an async urb id is not an error
usb-redir: Reset device address and speed on disconnect
usb-redir: An interface count of 0 is a valid value
usb-xhci: fix bit test
usb-xhci: Use PCI DMA helper functions
usb-host: fix zero-length packets
usb-host: don't dereference invalid iovecs
usb-storage: fix request canceling
usb-ehci: Ensure frindex writes leave a valid frindex value
usb-ehci: add missing usb_packet_init() call
usb-ehci: remove hack
* mst/tags/for_anthony:
e1000: set E1000_ICR_INT_ASSERTED only for 8257x
e1000: link auto-negotiation emulation
e1000: introduce bit for debugging PHY emulation
e1000: introduce helpers to manipulate link status
e1000: PHY loopback mode support
e1000: conditionally raise irq at the end of MDI cycle
e1000: introduce bits of PHY control register
eepro100: Fix multicast regression
virtio: order index/descriptor reads
virtio: add missing mb() on enable notification
virtio: add missing mb() on notification
e1000: move reset function earlier in file
We're not actually calling qdev_init for the pc-sysfw device. Since we create
the canonical path during realize, this was causing an assert to trigger when
attempting to read a link pointing to pc-sysfw.
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
uhci_reset() clears irq mask and irq status registers, but doesn't
update the irq line. Which may result in suspious IRQs after uhci
reset. Fix it.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
This patch adds a function which creates unique serial numbers for usb
devices and puts it into use. Windows guests tend to become unhappy if
they find two identical usb devices in the system. Effects range from
non-functional devices (with yellow exclamation mark in device manager)
to BSODs. Handing out unique serial numbers to devices fixes this.
With this patch applied almost all emulated devices get a generated,
unique serial number. There are two exceptions:
* usb-storage devices will prefer a user-specified serial number
and will only get a generated number in case the serial property
is unset.
* usb-hid devices keep the fixed serial number "42" as it is used
to signal "remote wakeup actually works".
See commit 7b074a22da
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
We clear our pending async urb list on device disconnect and we may still
receive "packet complete" packets from our peer after this, which will then
refer to packet ids no longer in our list.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Without this disconnected devices look like the last redirected device
in the monitor in "info usb".
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
An interface-count of 0 happens when a device is in unconfigured state when
it gets redirected. So we should not use 0 to detect not having received
interface info from our peer.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Shortly before 1.0, we added helper functions / wrappers for doing PCI DMA
from individual devices. This makes what's going on clearer and means that
when we add IOMMU support somewhere in the future, only the general PCI
code will have to change, not every device that uses PCI DMA.
However, usb-xhci is not using these wrappers, despite being a PCI only
device. This patch remedies the situation, using the pci dma functions
instead of direct calls to cpu_physical_memory_{read,write}(). Likewise
address parameters for DMA are changed to dma_addr_t instead of
target_phys_addr_t.
[ kraxel: removed #ifdefs ]
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
usb-host optimizes away zero-length packets by not entering the
processing loop at all. Which isn't correct, we should submit a
zero-length urb to the host devicein that case. This patch makes
sure we run the processing loop at least once.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
usb-host assumes the first iovec element is always valid.
In case of a zero-length packet this isn't true though.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Little fix for usb packet handling on i/o cancelation. The
usb packet pointer (s->packet) is cleared at the wrong place:
The scsi request cancel handler does it. When a usb packet
is canceled the usb-storage emulation canceles the scsi request
if present. In most cases there is one, so usually s->packet
is cleared as needed even with the code sitting at the wrong
place.
If there is no scsi request in flight s->packet is not cleared
though. The usb-storage emulation will then try to complete an
usb packet which is not in flight any more and thereby trigger
an assert() in the usb core.
Fix this by clearing s->packet at the correct place, which is
the usb packet cancel header.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
frindex is a 14 bits counter, so bits 31-14 should always be 0, and
after the commit titled "usb-ehci: frindex always is a 14 bits counter"
we rely on frindex always being a multiple of 8. I've not seen this in
practice, but theoretically a guest can write a value >= 0x4000 or a value
which is not a multiple of 8 value to frindex, this patch ensures that
things will still work when that happens.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
To answer the question in the comment removed by this patch: I think
this was needed because several places in the ehci emulation did not
check the T bit of link entries correctly and thus might have followed
invalid references. See commit 2a5ff735dc
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Our hda codecs exist in two variants: With CONFIG_MIXEMU=y they expose
amplifiers for volume control to the guest, with CONFIG_MIXEMU=n they
don't.
This patch changes the codec ids, they are different now for these two
cases. This makes sure windows guests will notice the difference.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
It's identical to the hda-duplex codec, except that it advertises the
input as microphone instead of line-in and the output as speaker instead
of line-out. Some guest apps (microsoft netmeeting being one) are picky
when it comes to selecting the recording source and don't accept
line-in, so give them what they expect.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: malc <av1474@comtv.ru>
When a guest driver resets the virtio status to not ready, or when qemu
is reset, reset all ports' guest_connected bit and let port users know
of this event if they have the guest_close() callback registered.
Reviewed-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
guest_connected should be false before guest driver initialization, and
true after, both for multiport aware and non multiport aware drivers.
Don't set it before the guest_features are available; instead use
set_status which is called by io to VIRTIO_PCI_STATUS with
VIRTIO_CONFIG_S_DRIVER_OK by even older non multiport drivers.
[Amit: Add comment, tweak summary, only set guest_connected and not
reset it as a side-effect.]
Signed-off-by: Alon Levy <alevy@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
E1000_ICR_INT_ASSERTED were introduced only for 8257x, so we need to
check the E1000_DEVID before setting this bit in ICS.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Indeed, there's nothing else except for the time spent on the
negotiation needs to be emulated. This is needed for resuming windows
guest from hibernation, as without a proper delay, qemu would send the
packet too early ( guest even does not have a proper intr handler),
which could lead windows guest hang.
This patch first introduces an array of function pointers to make it
possible to emulate per-register write behavior. Then traps the
PHY_CTRL register write and when guest want to restart the link auto
negotiation, we would down the link and mark the auto negotiation in
progress in PHY_STATUS register. After time, a timer with 500 ms (
which is the minimum timeout of auto-negotation specified in 802.3
spec). The link would be up when timer expired.
Test with resuming windows guest plus flood ping and linux ethtool
linkstatus test.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This patch introduces helpers to change link status bit for phy/mac
register. This would help to reduce code duplication and would be used
by following patches.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
The missing of loopback mode prevent the running of self diagnosis
program in guest. This patch adds this support.
After this patch, loopback test of ethtool were passed in guest.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
According to the spec:
"When set to 1b by software, it causes an Interrupt to be
asserted to indicate the end of an MDI cycle."
We need check the Interrupt Enable bit and raise irq only when it is
set.
Signed-off-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Commit 7fc8d918b9 removed code from
eepro100.c and replaced it by different code: the code in net.c
returns bits 31...26, but eepro100 needs bits 7...2.
This patch partially reverts 7fc8d918b9.
To avoid future problems, I renamed the function and changed the comment.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
virtio has the equivalent of:
if (vq->last_avail_index != vring_avail_idx(vq)) {
read descriptor head at vq->last_avail_index;
}
In theory, processor can reorder descriptor head
read to happen speculatively before the index read.
this would trigger the following race:
host descriptor head read <- reads invalid head from ring
guest writes valid descriptor head
guest writes avail index
host avail index read <- observes valid index
as a result host will use an invalid head value.
This was not observed in the field by me but after
the experience with the previous two races
I think it is prudent to address this theoretical race condition.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This fixes an issue dual to the one fixed by
patch 'virtio: add missing mb() on notification'
and applies on top.
In this case, to enable vq kick to exit to host,
qemu writes out used flag then reads the
avail index. if these are reordered we get a race:
host avail index read: ring is empty
guest avail index write
guest flag read: exit disabled
host used flag write: enable exit
which results in a lost exit: host will never be notified about the
avail index update. Again, happens in the field but only seems to
trigger on some specific hardware.
Insert an smp_mb barrier operation to ensure the correct ordering.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
During normal operation, virtio first writes a used index
and then checks whether it should interrupt the guest
by reading guest avail index/flag values.
Guest does the reverse: writes the index/flag,
then checks the used ring.
The ordering is important: if host avail flag read bypasses the used
index write, we could in effect get this timing:
host avail flag read
guest enable interrupts: avail flag write
guest check used ring: ring is empty
host used index write
which results in a lost interrupt: guest will never be notified
about the used ring update.
This actually can happen when using kvm with an io thread,
such that the guest vcpu and qemu run on different host cpus,
and this has actually been observed in the field
(but only seems to trigger on very specific processor types)
with userspace virtio: vhost has the necessary smp_mb()
in place to prevent the regordering, so the same workload stalls
forever waiting for an interrupt with vhost=off but works
fine with vhost=on.
Insert an smp_mb barrier operation in userspace virtio to
ensure the correct ordering.
Applying this patch fixed the race condition we have observed.
Tested on x86_64. I checked the code generated by the new macro
for i386 and ppc but didn't run virtio.
Note: mb could in theory be implemented by __sync_synchronize, but this
would make us hit old GCC bugs. Besides old GCC
not implementing __sync_synchronize at all, there were bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36793
in this functionality as recently as in 4.3.
As we need asm for rmb,wmb anyway, it's just as well to
use it for mb.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If a guest sets very short timeouts, and asks for a timer to be reloaded on
timeout, QEMU can go to 100%CPU utilisation and become unresponsive,
as it is spending all its time generating timeout interrupts. On real
hardware this doesn't matter, as the interrupts are just coalesced,
and the effect is to have the interrupt asserted all the time.
This patch is a band-aid, that prevents timeouts less than 10
microseconds from being set. 10 microseconds is a limit that was
determined empirically on a variety of machines as the shortest that
allowed QEMU to pick up a control-a c sequence to get at the monitor.
Reported-by: Anna Lyons <anna.lyons@nicta.com.au>
Signed-off-by: Peter Chubb <peter.chubb@nicta.com.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Specify the root to search from as argument. This avoids hardcoding
"/machine" in some places and makes it more flexible.
Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Anthony Liguori <anthony@codemonkey.ws>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
* kwolf/for-anthony: (38 commits)
qemu-iotests: Fix test 031 for qcow2 v3 support
qemu-iotests: Add -o and make v3 the default for qcow2
qcow2: Zero write support
qemu-iotests: Test backing file COW with zero clusters
qemu-iotests: add a simple test for write_zeroes
qcow2: Support for feature table header extension
qcow2: Support reading zero clusters
qcow2: Version 3 images
qcow2: Ignore reserved bits in check_refcounts
qcow2: Ignore reserved bits in refcount table entries
qcow2: Simplify count_cow_clusters
qcow2: Refactor qcow2_free_any_clusters
qcow2: Ignore reserved bits in L1/L2 entries
qcow2: Fail write_compressed when overwriting data
qcow2: Ignore reserved bits in count_contiguous_clusters()
qcow2: Ignore reserved bits in get_cluster_offset
qcow2: Save disk size in snapshot header
Specification for qcow2 version 3
qcow2: Fix refcount block allocation during qcow2_alloc_cluster_at()
iotests: Resolve test failures caused by hostname
...
Fix BCD mask for date. The most visible effect of this patch is
Solaris 2.5.1 doesn't hang at boot if the day of month is >21.
Signed-off-by: Artyom Tarasenko <atar4qemu@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
* origin/master: (27 commits)
target-arm: Move reset handling to arm_cpu_reset
target-arm: Drop cpu_reset_model_id()
target-arm: Move cache ID register setup to cpu specific init fns
target-arm: Move OMAP cp15_i_{max,min} reset to cpu_state_reset
target-arm: Move feature register setup to per-CPU init fns
target-arm: Move iWMMXT wCID reset to cpu_state_reset
target-arm: Drop JTAG_ID documentation
target-arm: Move SCTLR reset value setup to per cpu init fns
target-arm: Move CTR setup to per cpu init fns
target-arm: Move MVFR* setup to per cpu init fns
target-arm: Move FPSID config to cpu init fns
target-arm: Move feature bit settings to CPU init fns
target-arm: Add QOM subclasses for each ARM cpu implementation
target-arm: remind to keep arm features in sync with linux-user/elfload.c
tci: GETPC() macro must return an uintptr_t
gdbstub: Synchronize CPU state unconditionally in gdb_set_cpu_pc
softfloat: make USE_SOFTFLOAT_STRUCT_TYPES compile
target-xtensa: add tests for LOOPNEZ and LOOPGTZ
target-xtensa: fix LOOPNEZ/LOOPGTZ translation
qtest: add m48t59 tests for Sparc
...
* stefanha/trivial-patches:
Add .gitignore for tests/
e1000: Fix spelling (segmentaion -> segmentation) in debug output
spice-qemu-char.c: Show what name is unsupported
pflash_cfi01: remove redundant line
qxl: Add missing GCC_FMT_ATTR and fix format specifier
fix block_job_set_speed name in documentation
error.c: don't return value for void function
* bonzini/scsi-next:
scsi: add SANITIZE command
SCSI emulation: should tell the guest that we actually support thin provisioning
SCSI emulation: Support unmap via WRITE_SAME_10.
scsi: advertise DPOFUA
scsi: small refactoring of MMC mode-sense
scsi: support FUA on reads
scsi: add a started field to SCSIDiskReq
scsi: force unit access on VERIFY
scsi: add support for FUA on writes
scsi: move scsi_flush_complete around
scsi: make code more homogeneous in AIO callback functions
scsi: add missing test for cancelled request
virtio-scsi: add multiqueue capability
virtio: add virtio_queue_get_id
virtio-scsi: prepare migration format for multiqueue
scsi: fix memory leak
On reset of the mpcore timer/watchdog block we need to
delete the qemu_timer in case it was running.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
