Allow certain event types to be rate limited to avoid flooding
monitor clients. The monitor_protocol_event() method is changed
such that instead of immediately emitting the event to Monitor
instances, it will call a new monitor_protocol_event_queue()
method.

This will check to see if the rate limit for the event has been
exceeded, and if so schedule a timer to wakeup at the end of the
rate limit period. If further events arrive before the timer fires,
the previously queued event will be discarded in favour of the new
event. The event will eventually be emitted when the timer fires.

This logic is applied to RTC_CHANGE, BALLOON_CHANGE & WATCHDOG
events, since the data associated with these events is stateless

 * monitor.c: Add support for rate limiting
 * monitor.h: Define monitor_global_init for one-time setup tasks
 * vl.c: Invoke monitor_global_init
 * trace-events: Add hooks for monitor event tracing
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Acked-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@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: NDaniel P. Berrange <berrange@redhat.com>
Acked-by: NAmit Shah <amit.shah@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

Cc: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Signed-off-by: NWen Congyang <wency@cn.fujitsu.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

Each string which is shown during readline completion in the QEMU monitor
is allocated dynamically but currently never deallocated.

Add the missing loop which calls g_free for the allocated strings.
Signed-off-by: NStefan Weil <sw@weilnetz.de>
Reviewed-by: NStefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

The comment is stale, monitor.h is not needed anymore (only qerror.h
is, because it contains the schema for errors).
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

This is needed to get file descriptors from SCM_RIGHTS.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

These are included via monitor.h right now, add them explicitly.
Signed-off-by: NPaolo Bonzini <pbonzini@redhat.com>
Signed-off-by: NLuiz Capitulino <lcapitulino@redhat.com>

Some gcc versions seem not to be able to figure out that the switch
statement covers all possible values and that c is therefore always
initialised. Add a default branch for them.
Reported-by: Nmalc <av1474@comtv.ru>
Signed-off-by: NKevin Wolf <kwolf@redhat.com>
Signed-off-by: Nmalc <av1474@comtv.ru>

- The M-flag is encoded in different bits on cris v10 and cris v32.
Signed-off-by: NLars Persson <larper@axis.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Added a reasonable default frequency for the xilinx timer (the 62MHz from
s3adsp machine model).
Signed-off-by: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar 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: NPeter A. G. Crosthwaite <peter.crosthwaite@petalogix.com>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Speeds up the build.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Add #ifdef to avoid complaint about use of poisoned "env".
Signed-off-by: NBlue Swirl <blauwirbel@gmail.com>
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Speeds up the build.

xilinx_ethlite uses tswap32() and is thus target-dependent.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Signed-off-by: NEdgar E. Iglesias <edgar.iglesias@gmail.com>

Still no retb
Signed-off-by: NEdgar E. Iglesias <edgar@axis.com>

* qemu-kvm/uq/master:
  kvm: i8254: Fix conversion of in-kernel to userspace state
  kvm/apic: correct short memset

* sstabellini/for_1.1.1:
  qemu/xendisk: set maximum number of grants to be used

* 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

* stefanha/trivial-patches:
  configure: report missing libraries for virtfs
  trace/simple.c: fix deprecated glib2 interface
  Clarify comments of tb_invalidate_phys_[page_]range

* kraxel/usb.52: (37 commits)
  ehci: rework frame skipping
  ehci: adaptive wakeup rate.
  ehci: create ehci_update_frindex
  ehci: remove unused attach_poll_counter
  ehci: fix halt status handling
  ehci: update status bits in ehci_set_state
  ehci: add ehci_*_enabled() helpers
  ehci: fix reset
  ehci: kick async schedule on wakeup
  ehci: schedule async bh on async packet completion
  ehci: move async schedule to bottom half
  ehci: add async field to EHCIQueue
  ehci: tweak queue initialization
  ehci: add queuing support
  ehci: move ehci_flush_qh
  ehci: cache USBDevice in EHCIQueue
  ehci: make ehci_execute work on EHCIPacket instead of EHCIQueue
  ehci: add EHCIPacket
  xhci: trace: slots
  xhci: trace: transfers
  ...

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: NJan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: NAvi 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: NJan Beulich <jbeulich@suse.com>
Signed-off-by: NStefano 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: NJim Meyering <meyering@redhat.com>
Signed-off-by: NAvi Kivity <avi@redhat.com>

Needed for qemu_cpu_kick().
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Convert ipi_states to S390CPU**.

Needed for s390_cpu_restart() in handle_sigp().
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Needed to store S390CPU in ipi_states[].
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Let cpu_init() return CPUS390XState for backwards compatibility.
Signed-off-by: NAndreas Färber <afaerber@suse.de>

Needed for moving halted field to CPUState.
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Tested-by: NStefano Stabellini <stefano.stabellini@eu.citrix.com>

Pass it through to arm_pic_cpu_handler().
Signed-off-by: NAndreas Färber <afaerber@suse.de>
Acked-by: NPeter Maydell <peter.maydell@linaro.org>
Acked-by: Igor Mitsyanko <i.mitsyanko@samsung.com> (for exynos)