Eduardo Habkost [Mon, 10 Feb 2014 10:21:30 +0000 (08:21 -0200)]
target-i386: X86CPU model subclasses
Register separate QOM types for each x86 CPU model.
This will allow management code to more easily probe what each CPU model
provides, by simply creating objects using the appropriate class name,
without having to restart QEMU.
This also allows us to eliminate the qdev_prop_set_globals_for_type()
hack to set CPU-model-specific global properties.
Instead of creating separate class_init functions for each class, I just
used class_data to store a pointer to the X86CPUDefinition struct for
each CPU model. This should make the patch shorter and easier to review.
Later we can gradually convert each X86CPUDefinition field to lists of
per-class property defaults.
The "host" CPU model is special, as the feature flags depend on KVM
being initialized. So it has its own class_init and instance_init
function, and feature flags are set on instance_init instead of
class_init.
Signed-off-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Eduardo Habkost <ehabkost@redhat.com> Tested-by: Eduardo Habkost <ehabkost@redhat.com>
[AF: Limit the host CPU type to CONFIG_KVM as build fix] Signed-off-by: Andreas Färber <afaerber@suse.de>
Eduardo Habkost [Wed, 19 Feb 2014 14:58:12 +0000 (11:58 -0300)]
target-i386: Enable x2apic by default on KVM
When on KVM mode, enable x2apic by default on all CPU models.
Normally we try to keep the CPU model definitions as close as the real
CPUs as possible, but x2apic can be emulated by KVM without host CPU
support for x2apic, and it improves performance by reducing APIC access
overhead. x2apic emulation is available on KVM since 2009 (Linux
2.6.32-rc1), there's no reason for not enabling x2apic by default when
running KVM.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Instead of the feature-specific disable_kvm_pv_eoi() function, create a
more general function that can be used to disable other feature bits in
machine-type compat code.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Eduardo Habkost [Thu, 30 Jan 2014 19:48:57 +0000 (17:48 -0200)]
target-i386: Call x86_cpu_load_def() earlier
As we will initialize the X86CPU fields on instance_init eventually,
move the code that initializes the X86CPU data based on the CPU model
name closer to the object_new() call.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Eduardo Habkost [Thu, 30 Jan 2014 19:48:56 +0000 (17:48 -0200)]
target-i386: Rename cpu_x86_register() to x86_cpu_load_def()
There isn't any kind of "registration" involved in cpu_x86_register()
anymore: it is simply looking up a CPU model name and loading the model
definition data into the X86CPU object. Rename it to x86_cpu_load_def()
to reflect what it does.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Cc: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
cpu->exit_request is part of the execution environment and should
not be cleared when a CPU resets.
Otherwise, we might deadlock QEMU if a CPU resets while there is
I/O going on.
Signed-off-by: Edgar E. Iglesias <edgar.iglesias@xilinx.com> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
Peter Maydell [Thu, 13 Mar 2014 15:33:04 +0000 (15:33 +0000)]
Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Block pull request
# gpg: Signature made Thu 13 Mar 2014 13:50:49 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/block-pull-request: (24 commits)
block/raw-win32: bdrv_parse_filename() for hdev
block/raw-posix: Strip protocol prefix on creation
block/raw-posix: bdrv_parse_filename() for cdrom
block/raw-posix: bdrv_parse_filename() for floppy
block/raw-posix: bdrv_parse_filename() for hdev
qemu-io: Fix warnings from static code analysis
block: Unlink temporary file
qcow2: Don't write with BDRV_O_INCOMING
qcow2: Keep option in qcow2_invalidate_cache()
qmp: add query-iothreads command
iothread: stash thread ID away
dataplane: replace internal thread with IOThread
iothread: add "iothread" qdev property type
qdev: make get_pointer() handle temporary strings
iothread: add I/O thread object
aio: add aio_context_acquire() and aio_context_release()
rfifolock: add recursive FIFO lock
object: add object_get_canonical_path_component()
block: Rewrite the snapshot authorization mechanism for block filters.
iotests: Test corruption during COW request
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Andreas Färber [Thu, 13 Mar 2014 13:27:59 +0000 (14:27 +0100)]
oslib-posix: Fix build on FreeBSD
Commit 10f5bff622cad71645e22c027b77ac31e51008ef (util: Split out
exec_dir from os_find_datadir) moved code from os-posix.c to
util/oslib-posix.c but forgot to move a FreeBSD #include alongside,
needed for CTL_KERN among others.
Cc: Fam Zheng <famz@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Message-id: 1394717279-23406-1-git-send-email-andreas.faerber@web.de Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Max Reitz [Fri, 7 Mar 2014 23:39:44 +0000 (00:39 +0100)]
block/raw-posix: Strip protocol prefix on creation
The hdev_create() implementation in block/raw-posix.c is used by the
"host_device", "host_cdrom" and "host_floppy" protocol block drivers
together. Thus, any of the associated prefixes may occur and exactly one
should should be stripped, if it does (thus,
"host_device:host_cdrom:/dev/cdrom" is not shortened to "/dev/cdrom").
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Weil [Wed, 5 Mar 2014 21:23:00 +0000 (22:23 +0100)]
qemu-io: Fix warnings from static code analysis
Smatch complains about several global symbols which should be local.
Add the missing 'static' attributes and move the 'extern' declaration
of variable qemuio_misalign to qemu-io.h. This variable also changes
the type from 'int' to 'bool' which better fits documents its use.
Signed-off-by: Stefan Weil <sw@weilnetz.de> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Max Reitz [Sat, 15 Feb 2014 17:03:21 +0000 (18:03 +0100)]
block: Unlink temporary file
If the image file cannot be opened and was created as a temporary file,
it should be deleted; thus, in this case, we should jump to the
"unlink_and_fail" label and not just to "fail".
Reported-by: Benoît Canet <benoit@irqsave.net> Signed-off-by: Max Reitz <mreitz@redhat.com> Acked-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 11 Mar 2014 14:15:03 +0000 (15:15 +0100)]
qcow2: Don't write with BDRV_O_INCOMING
qcow2_open() causes writes when repairing an image with the dirty flag
set and when clearing autoclear flags. It shouldn't do this when another
qemu instance is still actively working on this image file.
One effect of the bug is that images may have a cleared dirty flag while
the migration source host still has it in use with lazy refcounts
enabled, so refcounts are not accurate and the dirty flag must remain
set.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 11 Mar 2014 16:42:41 +0000 (17:42 +0100)]
qcow2: Keep option in qcow2_invalidate_cache()
Instead of manually building a list of all options from BDRVQcowState
values just reuse the options that were used to open the image.
qcow2_open() won't fully use all of the options in the QDict, but that's
okay.
This fixes all of the driver-specific options in qcow2, except for
lazy-refcounts, which was special cased before.
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Thu, 27 Feb 2014 10:48:41 +0000 (11:48 +0100)]
iothread: stash thread ID away
Keep the thread ID around so we can report it via QMP.
There's only one problem: qemu_get_thread_id() (gettid() wrapper on
Linux) must be called from the thread itself. There is no way to get
the thread ID outside the thread.
This patch uses a condvar to wait for iothread_run() to populate the
thread_id inside the thread.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Mon, 3 Mar 2014 10:30:08 +0000 (11:30 +0100)]
dataplane: replace internal thread with IOThread
Today virtio-blk dataplane uses a 1:1 device-per-thread model. Now that
IOThreads have been introduced we can generalize this to N:M devices per
threads.
This patch drops thread code from dataplane in favor of running inside
an IOThread AioContext.
As a bonus we solve the case where a guest keeps submitting I/O requests
while dataplane is trying to stop. Previously the dataplane thread
would continue to process requests until the request gave it a break.
Now we can shut down in bounded time thanks to
aio_context_acquire/release.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Note that Paolo Bonzini <pbonzini@redhat.com> has suggested using QOM
links instead. This way the relationship between the objects is
reflected in QOM. There are currently shortcomings of
object_property_add_link() which prevent this use case. I will attempt
to fix them and move to QOM links in a separate series.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Igor Mammedov [Mon, 3 Mar 2014 10:30:06 +0000 (11:30 +0100)]
qdev: make get_pointer() handle temporary strings
get_pointer()'s print() callback might return a heap allocated
string, to avoid adding dedicated get_pointer_foo for this case
convert current print() callbacks to return temporary heap
allocated string and make get_pointer() free it.
Reviewed-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Mon, 3 Mar 2014 10:30:05 +0000 (11:30 +0100)]
iothread: add I/O thread object
This is a stand-in for Michael Roth's QContext. I expect this to be
replaced once QContext is completed.
The IOThread object is an AioContext event loop thread. This patch adds
the concept of multiple event loop threads, allowing users to define
them.
When SMP guests run on SMP hosts it makes sense to instantiate multiple
IOThreads. This spreads event loop processing across multiple cores.
Note that additional patches are required to actually bind a device to
an IOThread.
[Andreas Färber <afaerber@suse.de> pointed out that the embedded parent
object instance should be called "parent_obj" and have a newline
afterwards. This patch has been changed to reflect this.
-- Stefan]
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Mon, 3 Mar 2014 10:30:04 +0000 (11:30 +0100)]
aio: add aio_context_acquire() and aio_context_release()
It can be useful to run an AioContext from a thread which normally does
not "own" the AioContext. For example, request draining can be
implemented by acquiring the AioContext and looping aio_poll() until all
requests have been completed.
/* Another thread */
aio_context_acquire(ctx);
bdrv_read(bs, 0x1000, buf, 1);
aio_context_release(ctx);
This patch implements aio_context_acquire() and aio_context_release().
Note that existing aio_poll() callers do not need to worry about
acquiring and releasing - it is only needed when multiple threads will
call aio_poll() on the same AioContext.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Stefan Hajnoczi [Mon, 3 Mar 2014 10:30:03 +0000 (11:30 +0100)]
rfifolock: add recursive FIFO lock
QemuMutex does not guarantee fairness and cannot be acquired
recursively:
Fairness means each locker gets a turn and the scheduler cannot cause
starvation.
Recursive locking is useful for composition, it allows a sequence of
locking operations to be invoked atomically by acquiring the lock around
them.
This patch adds RFifoLock, a recursive lock that guarantees FIFO order.
Its first user is added in the next patch.
RFifoLock has one additional feature: it can be initialized with an
optional contention callback. The callback is invoked whenever a thread
must wait for the lock. For example, it can be used to poke the current
owner so that they release the lock soon.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Benoît Canet [Mon, 3 Mar 2014 18:11:34 +0000 (19:11 +0100)]
block: Rewrite the snapshot authorization mechanism for block filters.
This patch keep the recursive way of doing things but simplify it by giving
two responsabilities to all block filters implementors.
They will need to do two things:
-Set the is_filter field of their block driver to true.
-Implement the bdrv_recurse_is_first_non_filter method of their block driver like
it is done on the Quorum block driver. (block/quorum.c)
[Paolo Bonzini <pbonzini@redhat.com> pointed out that this patch changes
the semantics of blkverify, which now recurses down both bs->file and
s->test_file.
-- Stefan]
Reported-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Benoit Canet <benoit@irqsave.net> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Max Reitz [Mon, 10 Mar 2014 22:44:09 +0000 (23:44 +0100)]
iotests: Test corruption during COW request
Extend test file 060 by a test case for corruption occuring concurrently
to a COW request. QEMU should not crash but rather return an appropriate
error message.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Max Reitz [Mon, 10 Mar 2014 22:44:08 +0000 (23:44 +0100)]
block: bs->drv may be NULL in bdrv_debug_resume()
Currently, bdrv_debug_resume() requires every bs->drv in the BDS stack
to be NULL until a bs->drv with an implementation of bdrv_debug_resume()
is found. For a normal function, this would be fine, but this is a
function for debugging purposes and should therefore allow intermediate
BDS not to have a driver (i.e., be "ejected"). Otherwise, it is hard to
debug such situations.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Max Reitz [Mon, 10 Mar 2014 22:44:07 +0000 (23:44 +0100)]
qcow2: Check bs->drv in copy_sectors()
Before dereferencing bs->drv for a call to its member bdrv_co_readv(),
copy_sectors() should check whether that pointer is indeed valid, since
it may have been set to NULL by e.g. a concurrent write triggering the
corruption prevention mechanism.
Signed-off-by: Max Reitz <mreitz@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Kevin Wolf [Tue, 11 Mar 2014 09:58:39 +0000 (10:58 +0100)]
block: Update image size in bdrv_invalidate_cache()
After migration has completed, we call bdrv_invalidate_cache() so that
drivers which cache some data drop their stale copy of the data and
reread it from the image file to get a new version of data that the
source modified while the migration was running.
Reloading metadata from the image file is useless, though, if the size
of the image file stays stale (this is a value that is cached for all
image formats in block.c). Reads from (meta)data after the old EOF
return only zeroes, causing image corruption.
We need to update bs->total_sectors in all layers that could potentially
have changed their size (i.e. backing files are not a concern - if they
are changed, we're in bigger trouble)
Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Max Reitz [Fri, 7 Mar 2014 22:10:12 +0000 (23:10 +0100)]
qcow2-refcount: Sanitize refcount table entry
When reading the refcount table entry in get_refcount(), only bits which
are actually significant for the refcount block offset should be taken
into account.
Signed-off-by: Max Reitz <mreitz@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
# gpg: Signature made Thu 13 Mar 2014 02:50:51 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
* remotes/afaerber/tags/ppc-for-2.0:
spapr-pci: Convert fprintf() to error_report()
spapr-pci: Convert to QOM realize
xics-kvm: Fix reset function
pseries: Update SLOF firmware image to qemu-slof-20140304
Move QEMUMachine typedef to qemu/typedefs.h
Revert "KVM: Split QEMUMachine typedef into separate header"
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 13 Mar 2014 12:32:47 +0000 (12:32 +0000)]
Merge remote-tracking branch 'remotes/afaerber/tags/qom-devices-for-peter' into staging
QOM/QTest infrastructure fixes and device conversions
* QTest cleanups and test cases for some virtio devices
* QTest for sPAPR PCI host bridge
* qom-test now tests reading all properties beneath /machine
* QOM API leak fixes
* QOM cleanups for SSI devices
* QOM conversion of QEMUMachine
* QOM realize for buses
* sPAPR PCI bus name change
# gpg: Signature made Thu 13 Mar 2014 00:22:40 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
* remotes/afaerber/tags/qom-devices-for-peter: (31 commits)
libqtest: Fix possible deadlock in qtest initialization
pci: Move VMState registration/unregistration to QOM realize/unrealize
qdev: Realize buses on device realization
qdev: Prepare realize/unrealize hooks for BusState
tests: Add spapr-pci-host-bridge qtest
virtio-serial-port: Convert to QOM realize/unrealize
virtio-console: QOM cast cleanup for VirtConsole
tests: Add virtio-console qtest
tests: Add virtio-serial qtest
tests: Add virtio-scsi qtest
tests: Add virtio-rng qtest
tests: Add virtio-balloon qtest
tests: Add virtio-blk qtest
tests: Clean up IndustryPack TPCI200 gcov paths
qom-test: Test QOM properties
hw/boards: Convert current_machine to MachineState
vl: Use MachineClass instead of global QEMUMachine list
hw/core: Introduce QEMU machine as QOM object
qdev-monitor-test: Don't test human-readable error message
qdev-monitor-test: Simplify using g_assert_cmpstr()
...
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Thu, 13 Mar 2014 11:24:15 +0000 (11:24 +0000)]
libqtest: Avoid inline varargs functions
Older versions of gcc (eg 4.6) can't handle varargs functions declared
inline for anything other than completely trivial uses, and complain:
tests/qom-test.c: In function 'qmp': tests/libqtest.h:359:60: sorry,
unimplemented: function 'qmp' can never be inlined because it uses
variable argument lists
Avoid this problem by putting the functions into libqtest.c instead
of using inline definitions in libqtest.h.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Andreas Färber <afaerber@suse.de>
This converts the old-style SysBusDevice::init() callback to a new-style
DeviceClass::realize() callback.
As a part of conversion, this replaces fprintf(stderr) with error_setg()
as realize() does not "return" any value, instead it puts the extended
error into **errp.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Mike Day <ncmike@ncultra.org> Signed-off-by: Andreas Färber <afaerber@suse.de>
Currently interrupt priorities are set to 0 (highest) at the very
beginning of the guest execution which is not correct and makes the guest
produce random interrupt error messages such as:
"Interrupt 0x1001 (real) is invalid, disabling it".
This also prevents interrupt states from correct migration.
This initializes priority to 0xFF as the emulated XICS does.
Suggested-by: Paul Mackerras <paulus@samba.org> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Andreas Färber <afaerber@suse.de>
pseries: Update SLOF firmware image to qemu-slof-20140304
The changelog is:
> version: update to 20140304
> Introduce dummy console device
> vio-vscsi: Fix CRQ allocation alignment
> version: update to 20140204
> virtio-9p: disable unused structure
> Make "boot net:dhcp" boot from IPv4 only
> Fix virtio device shutdown
> Change shutdown method name for virtio-scsi
> Add support for 64bit LE ABI v1 and v2 support
> Change representation of string environment variable
> cas: return error when unknown node found
> version: update
> Reset obp-tftp arguments before parsing
> Enable seamless netboot on IPv6 network
> Fix shutdown for virtio devices
> Fix zero checksum in UDP header
> Handle router advertisement message properly
> [oex]hci_exit: Check before freeing/unmapping memory
> Work around missing sc 1 traps on pHyp
> fix print_version() to return where it came from
> usb-xhci: memory freeing and using returns as bool uniformly
> Output banner and initial display output in VNC window
> use VERSION file to generate FW version
> cas: remove warning
> Add support for loading little endian ELF binaries.
> Add bswap_{16,32,64}p
> dhcpv6 and other minor net-snk fixes
> Fix missing drop in virtio-fs setup-alias
> Find next available alias name
> SLOF does not exit if given 1KB disk
> boot: enable support for bootindex
> pci-properties: add properties to enable hotplug for spapr
> e1000: remember node handle
> Increase quiesce tokens array size
> virtio: timeout after 5sec
> Enable IPv6 support in dns
> usb-ohci: fix warnings
> Add ipv6 support in net-snk
> ipv4: fix frame overwriting following arp_send_request
> e1000: fix SLOF_dma_map_out arguments
> Maintain single global packet buffer for tftp
> Increase virtio-net receive queue size
> Increase veth receive queue size
> Fix dprintf macros at various points
> usb-ohci: rewrite done_head processing code
> boot: add net in default boot order
> block 0 address in the allocator
> scsi: make-media-alias fix
> usb-xhci: add xhci host controller support
> usb-xhci: add xhci support
> Avoid veth read/write calls with zero length buffer
> boot: include other aliases
> usb-core: disable xhci
Cc: Andreas Färber <afaerber@suse.de> Cc: Nikunj A Dadhania <nikunj@linux.vnet.ibm.com> Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Marcel Apfelbaum [Tue, 11 Mar 2014 13:00:34 +0000 (15:00 +0200)]
libqtest: Fix possible deadlock in qtest initialization
'socket_accept' waits for QEMU to init its unix socket.
If QEMU encounters an error during command line parsing,
it can exit before initializing the communication channel.
Using a timeout for sockets fixes the issue.
Reviewed-by: Eric Blake <eblake@redhat.com> Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Bandan Das [Mon, 25 Nov 2013 22:48:42 +0000 (17:48 -0500)]
pci: Move VMState registration/unregistration to QOM realize/unrealize
Use the realize and unrealize hooks to register and unregister
vmstate_pcibus respectively.
Relocate some stuff to avoid forward declarations.
Signed-off-by: Bandan Das <bsd@redhat.com> Acked-by: Michael S. Tsirkin <mst@redhat.com>
[AF: Keep using PCI_BUS() cast macro] Signed-off-by: Andreas Färber <afaerber@suse.de>
Bandan Das [Wed, 12 Mar 2014 20:02:12 +0000 (21:02 +0100)]
qdev: Realize buses on device realization
Integrate (un)realization of child buses with realization/unrealization
of the device hosting them. Code in device_unparent() is reordered for
unrealization of buses to work as part of device unrealization.
That way no changes need to be made to bus instantiation.
Signed-off-by: Bandan Das <bsd@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Andreas Färber [Fri, 7 Feb 2014 14:36:16 +0000 (15:36 +0100)]
qom-test: Test QOM properties
Recursively walk all properties under /machine and try to retrieve their
value. This is a regression test for link<> properties and the
DeviceState::hotpluggable property.
hw/boards: Convert current_machine to MachineState
In order to allow attaching machine options to a machine instance,
current_machine is converted into MachineState.
As a first step of deprecating QEMUMachine, some of the functions
were modified to return MachineClass.
Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
vl: Use MachineClass instead of global QEMUMachine list
The machine registration flow is refactored to use the QOM functionality.
Instead of linking the machines into a list, each machine has a type
and the types can be traversed in the QOM way.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
The main functional change is to convert QEMUMachine into MachineClass
and QEMUMachineInitArgs into MachineState, instance of MachineClass.
As a first step, in order to make possible an incremental development,
both QEMUMachine and QEMUMachineInitArgs are being embedded into the
new types.
Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Marcel Apfelbaum <marcel.a@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
qdev-monitor-test: Don't test human-readable error message
Test the error class instead. Expecting a specific message is
fragile. In fact, it broke once already, in commit 75884af. Restore
the test of error member "class" dropped there, and drop the test of
error member "desc".
There are no other tests of "desc" as far as I can tell.
Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Stefan Hajnoczi [Thu, 6 Mar 2014 09:12:52 +0000 (10:12 +0100)]
qdev-monitor-test: Simplify using g_assert_cmpstr()
Use g_assert_cmpstr() instead of combining g_assert() and strcmp(3).
This simplifies the code since we no longer have to play games to
distinguish NULL from "" using "(null)".
gcc extension haters will also be happy that ?: was dropped.
Suggested-by: Markus Armbruster <armbru@redhat.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Create an abstract class that encompasses both max111x variants. This is
needed for QOM cast macro creation (and is the right thing to do
anyway). Macroify type-names in the process.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Remove two legacy ->qbus style casts from TYPE_SSI_BUS to TYPE_BUS in
ssi.c.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Convert one missing ->qbus and rename parent field] Signed-off-by: Andreas Färber <afaerber@suse.de>
Convert legacy ->qdev style casts from TYPE_SSI_SLAVE to TYPE_DEVICE.
Signed-off-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
[AF: Introduce local DeviceState variable for transition to QOM realize] Signed-off-by: Andreas Färber <afaerber@suse.de>
Stefan Hajnoczi [Tue, 4 Mar 2014 14:28:18 +0000 (15:28 +0100)]
qom: Avoid leaking str and bool properties on failure
When object_property_add_str() and object_property_add_bool() fail, they
leak their internal StringProperty and BoolProperty structs. Remember
to free the structs on error.
Luckily this is a low-impact memory leak since most QOM properties are
static qdev properties that will never take the error case.
object_property_add() only fails if the property name is already in use.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by: Eric Blake <eblake@redhat.com> Cc: qemu-stable@nongnu.org Signed-off-by: Andreas Färber <afaerber@suse.de>
Amos Kong [Mon, 3 Mar 2014 07:57:55 +0000 (15:57 +0800)]
qdev-monitor: Set properties after parent is assigned in device_add
Test steps:
(qemu) device_add e1000,addr=adsf
Property 'e1000.addr' doesn't take value 'adsf'
(qemu) info qtree
Then qemu crashed.
Currently we set a link to the new device from its parent bus, but the
device hasn't been added to QOM tree yet. When it fails to set properties,
object_unparent() can't clean up the device.
Delay setting of device properties until the device has been added to
the QOM composition tree. This way, when setting a property fails,
object_unparent() can clean up the device properly.
Signed-off-by: Amos Kong <akong@redhat.com> Reviewed-by: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Andreas Färber [Fri, 7 Mar 2014 18:04:13 +0000 (19:04 +0100)]
qdev: Fix bus dependency of DeviceState::hotpluggable getter
Commit 1a37eca107cece3ed454bae29eef0bd1fac4a244 (qdev: add
"hotpluggable" property to Device) added a property "hotpluggable" to
each device, with its getter accessing parent_bus->allow_hotplug.
Add a NULL check.
Cc: Igor Mammedov <imammedo@redhat.com> Signed-off-by: Andreas Färber <afaerber@suse.de>
Peter Maydell [Wed, 12 Mar 2014 17:53:37 +0000 (17:53 +0000)]
Merge remote-tracking branch 'remotes/afaerber/tags/prep-for-upstream' into staging
PReP machine and devices
* ppc_rom.bin update and submodule
# gpg: Signature made Wed 12 Mar 2014 17:32:40 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg: aka "Andreas Färber <afaerber@suse.com>"
Peter Maydell [Wed, 12 Mar 2014 16:45:25 +0000 (16:45 +0000)]
Merge remote-tracking branch 'remotes/stefanha/tags/net-pull-request' into staging
Net patches
# gpg: Signature made Wed 12 Mar 2014 13:48:20 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
Andreas Färber [Sun, 2 Mar 2014 21:27:14 +0000 (22:27 +0100)]
prep: Update ppc_rom.bin
Functionally, this is a revert of Jocelyn's r3309 / 55aa45ddde3283cdd781326d001f7456bf02f684 (Quickly hack PowerPC BIOS
able to boot on CDROM again.), for which we do not have the sources.
Therefore the sources used are v0.4.1 plus pc-bios/ohw.diff plus a
workaround turning IDE errors into warnings.
Signed-off-by: Andreas Färber <andreas.faerber@web.de>
Peter Maydell [Wed, 12 Mar 2014 15:46:43 +0000 (15:46 +0000)]
Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging
Tracing pull request
# gpg: Signature made Wed 12 Mar 2014 13:20:10 GMT using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
# gpg: WARNING: This key is not certified with a trusted signature!
# gpg: There is no indication that the signature belongs to the owner.
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35 775A 9CA4 ABB3 81AB 73C8
* remotes/stefanha/tags/tracing-pull-request:
trace: Fix build warnings for Win32 build
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 12 Mar 2014 12:47:26 +0000 (12:47 +0000)]
Merge remote-tracking branch 'remotes/kiszka/queues/slirp' into staging
* remotes/kiszka/queues/slirp:
slirp smb with modern win guests when samba is also running on host
qemu/slirp: Fix SMB security configuration on newer samba versions
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Peter Maydell [Wed, 12 Mar 2014 10:47:07 +0000 (10:47 +0000)]
Merge remote-tracking branch 'remotes/qmp-unstable/queue/qmp' into staging
* remotes/qmp-unstable/queue/qmp:
tests: test-qmp-commands: Fix double free
qapi script: do not add "_" for every capitalized char in enum
qapi script: do not allow string discriminator
qapi: convert BlockdevOptions to use enum discriminator
qapi script: support enum type as discriminator in union
qapi script: use same function to generate enum string
qapi script: code move for generate_enum_name()
qapi script: check correctness of union
qapi script: remember line number in schema parsing
qapi script: add check for duplicated key
qapi script: remember explicitly defined enum values
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Miki Mishael [Sun, 19 Jan 2014 16:43:05 +0000 (11:43 -0500)]
Docs: Introduce multiport serial support in qemupciserial.inf.
Support for pci-serial-2x and pci-serial-4x
was added to the inf file.
Standard Windows driver mf.sys used to
split single function device into per-port nodes.
Stefan Hajnoczi [Sat, 8 Mar 2014 15:00:43 +0000 (16:00 +0100)]
tap: avoid deadlocking rx
The net subsystem has a control flow mechanism so peer NetClientStates
can tell each other to stop sending packets. This is used to stop
monitoring the tap file descriptor for incoming packets if the guest rx
ring has no spare buffers.
There is a corner case when tap_can_send() is true at the beginning of
an event loop iteration but becomes false before the tap_send() fd
handler is invoked.
tap_send() will read the packet from the tap file descriptor and attempt
to send it. The net queue will hold on to the packet and return 0,
indicating that further I/O is not possible. tap then stops monitoring
the file descriptor for reads.
This is unlike the normal case where tap_can_send() is the same before
and during the event loop iteration. The event loop would simply not
monitor the file descriptor if tap_can_send() returns true. Upon next
iteration it would check tap_can_send() again and begin monitoring if we
can send.
The deadlock happens because tap_send() explicitly disabled read_poll.
This is done with the expectation that the peer will call
qemu_net_queue_flush(). But hw/net/virtio-net.c does not monitor
vm_running transitions and issue the flush. Hence we're left with a
broken tap device.
Cc: qemu-stable@nongnu.org Reported-by: Neil Skrypuch <neil@tembosocial.com> Tested-by: Neil Skrypuch <neil@tembosocial.com> Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Michael Tokarev [Thu, 28 Nov 2013 19:32:55 +0000 (23:32 +0400)]
slirp smb with modern win guests when samba is also running on host
After numerous reports that -smb (or -netdev user,smb=foo) not working
with modern windows (win7 and vista are reported as non-working), I
started digging myself. And found that indeed it doesn't work, and
why.
The thing is that modern win tries to connect to port 445 (microsoft-ds)
first, and if that fails, it falls back to old port 139 (netbios-ssn).
slirp code in qemu only redirects port 139, it does not touch port 445.
So the prob is that if samba is also running on the host, guest will try
to communicate using port 445, and that will succed, but ofcourse guest
will not talk with our samba but with samba running on the host.
If samba is not running on the host, guest will fall back to port 139,
and will reach the redirecting rule and qemu will spawn smbd correctly.
The solution is to redirect both ports (139 and 445), and the fix is
a one-liner, adding second call to slirp_add_exec() at the end of
net/slirp.c:slirp_smb() function (provided below).
But it looks like that is not a proper fix really, since in theory
we should redirect both ports to the SAME, single samba instance,
but I'm not sure this is possible with slirp. Well, even if two
smbd processes will be run on the same config dir, it should not
be a problem.
The one-liner (not exactly 1 since it touches previous line too) is like
this:
Signed-off-By: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Michael Buesch [Fri, 1 Nov 2013 11:23:49 +0000 (12:23 +0100)]
qemu/slirp: Fix SMB security configuration on newer samba versions
The smb.conf automatically generated by qemu's -smb option fails on current
samba, because smbd rejects the security=share option with the following warning:
> WARNING: Ignoring invalid value 'share' for parameter 'security'
Which makes it fall back to security=user without guest login.
This results in being unable to login to the samba server from the guest OS.
This fixes it by selecting 'user' explicitly and mapping
unknown users to guest logins.
Signed-off-by: Michael Buesch <m@bues.ch> Reviewed-by: Michael Tokarev <mjt@tls.msk.ru> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
projects / mirror_qemu.git / log