Commit Graph

1806 Commits

Author SHA1 Message Date
Anton Nefedov
f47291b7a7 vl: log available guest crash information
There is a suitable log mask for the purpose.

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Message-Id: <1487053524-18674-4-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-16 15:30:49 +01:00
Anton Nefedov
c86f106b85 report guest crash information in GUEST_PANICKED event
it's not very convenient to use the crash-information property interface,
so provide a CPU class callback to get the guest crash information, and pass
that information in the event

Signed-off-by: Anton Nefedov <anton.nefedov@virtuozzo.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Message-Id: <1487053524-18674-3-git-send-email-den@openvz.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-16 15:30:49 +01:00
Dou Liyang
3741c2503b vl: Move the cpu_synchronize_all_post_init() after generic devices initialization
At the Qemu initialization, we call the cpu_synchronize_all_post_init()
to synchronize All CPU states to KVM in the ./vl.c::main().

Currently, it is called before we initialize the CPUs, which is created
by "-device" command and parsed by generic devices initialization, So,
these CPUs may be ignored to synchronize.

The patch moves the cpu_synchronize_all_post_init func after generic
devices initialization to make sure that all the CPUs can be included.

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Message-Id: <1485916178-17838-1-git-send-email-douly.fnst@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Acked-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-16 15:30:49 +01:00
Claudio Imbrenda
2d76e82395 move vm_start to cpus.c
This patch:

* moves vm_start to cpus.c.
* exports qemu_vmstop_requested, since it's needed by vm_start.
* extracts vm_prepare_start from vm_start; it does what vm_start did,
  except restarting the cpus.
* vm_start now calls vm_prepare_start and then restarts the cpus.

Signed-off-by: Claudio Imbrenda <imbrenda@linux.vnet.ibm.com>
Message-Id: <1487092068-16562-2-git-send-email-imbrenda@linux.vnet.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-02-16 14:06:55 +01:00
Daniel P. Berrange
0ab8ed18a6 trace: switch to modular code generation for sub-directories
Introduce rules in the top level Makefile that are able to generate
trace.[ch] files in every subdirectory which has a trace-events file.

The top level directory is handled specially, so instead of creating
trace.h, it creates trace-root.h. This allows sub-directories to
include the top level trace-root.h file, without ambiguity wrt to
the trace.g file in the current sub-dir.

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170125161417.31949-7-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2017-01-31 17:11:18 +00:00
Marc-André Lureau
777357d758 chardev: qom-ify
Turn Chardev into Object.

qemu_chr_alloc() is replaced by the qemu_chardev_new() constructor. It
will call qemu_char_open() to open/intialize the chardev with the
ChardevCommon *backend settings.

The CharDriver::create() callback is turned into a ChardevClass::open()
which is called from the newly introduced qemu_chardev_open().

"chardev-gdb" and "chardev-hci" are internal chardev and aren't
creatable directly with -chardev. Use a new internal flag to disable
them. We may want to use TYPE_USER_CREATABLE interface instead, or
perhaps allow -chardev usage.

Although in general we keep typename and macros private, unless the type
is being used by some other file, in this patch, all types and common
helper macros for qemu-char.c are in char.h. This is to help transition
now (some types must be declared early, while some aren't shared) and
when splitting in several units. This is to be improved later.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27 18:08:00 +01:00
Marc-André Lureau
0ec7b3e7f2 char: rename CharDriverState Chardev
Pick a uniform chardev type name.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27 18:07:59 +01:00
Peter Lieven
2deb63c2da block/iscsi: statically link qemu_iscsi_opts
commit f57b4b5f moved qemu_iscsi_opts into vl.c. This
made them invisible for qemu-img, qemu-nbd etc.

Fixes: f57b4b5fb1
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Message-Id: <1485262161-18543-1-git-send-email-pl@kamp.de>
[Drop useless #ifdef. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27 18:07:58 +01:00
Pavel Dovgalyuk
9c2037d0a4 replay: save/load initial state
This patch implements initial vmstate creation or loading at the start
of record/replay. It is needed for rewinding the execution in the replay mode.

v4 changes:
 - snapshots are not created by default anymore

v3 changes:
 - added rrsnapshot option

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20170124071746.4572.61449.stgit@PASHA-ISP>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-27 18:07:30 +01:00
Ashijeet Acharya
d15c05fc1f migration: Add a new option to enable only-migratable
Add a new option "--only-migratable" in qemu which will allow to add
only those devices which will not fail qemu after migration. Devices
set with the flag 'unmigratable' cannot be added when this option will
be used.

Signed-off-by: Ashijeet Acharya <ashijeetacharya@gmail.com>
Message-Id: <1484566314-3987-3-git-send-email-ashijeetacharya@gmail.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2017-01-24 17:54:47 +00:00
Eduardo Habkost
726401be06 arch_init: Remove unnecessary default_config_files table
The existing default_config_files table in arch_init.c has a
single entry, making it completely unnecessary. The whole code
can be replaced by a single qemu_read_config_file() call in vl.c.

Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <20170117180051.11958-1-ehabkost@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-01-23 21:25:36 -02:00
Dou Liyang
9c6703fe82 vl: Ensure the numa_post_machine_init func in the appropriate location
In the numa_post_machine_init(), we use CPU_FOREACH macro to set all
CPUs' namu_node. So, we should make sure that we call it after Qemu
has already initialied all the CPUs.

As we all know, the CPUs can be created by "-smp"(pc_new_cpu) or
"-device"(qdev_device_add) command. But, before the device init,
Qemu execute the numa_post_machine_init earlier. It makes the mapping
of NUMA nodes and CPUs incorrect.

The patch move the numa_post_machine_init func in the appropriate
location.

Signed-off-by: Dou Liyang <douly.fnst@cn.fujitsu.com>
Message-Id: <1484664152-24446-2-git-send-email-douly.fnst@cn.fujitsu.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-01-23 21:25:36 -02:00
Vincent Palatin
b0cb0a66d6 Plumb the HAXM-based hardware acceleration support
Use the Intel HAX is kernel-based hardware acceleration module for
Windows (similar to KVM on Linux).

Based on the "target/i386: Add Intel HAX to android emulator" patch
from David Chou <david.j.chou@intel.com>

Signed-off-by: Vincent Palatin <vpalatin@chromium.org>
Message-Id: <7b9cae28a0c379ab459c7a8545c9a39762bd394f.1484045952.git.vpalatin@chromium.org>
[Drop hax_populate_ram stub. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-19 22:07:46 +01:00
Paolo Bonzini
9f57061c35 acpi: filter based on CONFIG_ACPI_X86 rather than TARGET
Copy the mechanism of hw/smbios/smbios-stub.c to implement an ACPI-stub
instead, so that -acpitable can be later extended to ARM.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Paolo Bonzini
2f7b92a03f hw: move reset handlers from vl.c to hw/core
They are small, it is not worth stubbing them.  Just include them
in user-mode emulators and unit tests as well.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:35 +01:00
Leif Lindholm
1007a37e20 smbios: filter based on CONFIG_SMBIOS rather than TARGET
-smbios command line options were accepted but silently ignored on
TARGET_ARM, due to a test for TARGET_I386 in arch_init.c.

Copy the mechanism of hw/pci/pci-stub.c to implement an smbios-stub
instead, enabled for all targets without CONFIG_SMBIOS.

Signed-off-by: Leif Lindholm <leif.lindholm@linaro.org>
Message-Id: <20161222151828.28292-1-leif.lindholm@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2017-01-16 17:52:34 +01:00
Igor Mammedov
cdda2018e3 numa: make -numa parser dynamically allocate CPUs masks
so it won't impose an additional limits on max_cpus limits
supported by different targets.

It removes global MAX_CPUMASK_BITS constant and need to
bump it up whenever max_cpus is being increased for
a target above MAX_CPUMASK_BITS value.

Use runtime max_cpus value instead to allocate sufficiently
sized node_cpu bitmasks in numa parser.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <1479466974-249781-1-git-send-email-imammedo@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
[ehabkost: Added asserts to ensure cpu_index < max_cpus]
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2017-01-12 15:51:36 -02:00
Pavel Dovgalyuk
646c5478c0 record/replay: add network support
This patch adds support of recording and replaying network packets in
irount rr mode.

Record and replay for network interactions is performed with the network filter.
Each backend must have its own instance of the replay filter as follows:
 -netdev user,id=net1 -device rtl8139,netdev=net1
 -object filter-replay,id=replay,netdev=net1

Replay network filter is used to record and replay network packets. While
recording the virtual machine this filter puts all packets coming from
the outer world into the log. In replay mode packets from the log are
injected into the network device. All interactions with network backend
in replay mode are disabled.

v5 changes:
 - using iov_to_buf function instead of loop

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2017-01-06 10:38:00 +08:00
Michael Tokarev
004c8e0090 vl.c: move pidfile creation up the line
With current code, pid file is open after various
sockets, chardevs, fsdevs and the like.  This causes
interesting effects, for example when monitor is a
unix-socket, and another qemu instance is already
running, new qemu first "damages" the socket and
next complain that it can't acquire the pid file and
exits, making running qemu unreachable.

Move pid file creation earlier, right after the call
to os_daemonize(), where we know our process id (pid).

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Message-Id: <1478096330-18081-1-git-send-email-mjt@msgid.tls.msk.ru>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-09 14:08:17 +01:00
Christian Borntraeger
864111f422 vl: exit qemu on guest panic if -no-shutdown is not set
For automated testing purposes it can be helpful to exit qemu
(poweroff) when the guest panics. Make this the default unless
-no-shutdown is specified.

For internal-errors like errors from KVM_RUN the behaviour is
not changed, in other words QEMU does not exit to allow debugging
in the QEMU monitor.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <1476775794-108012-1-git-send-email-borntraeger@de.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-11-02 09:28:56 +01:00
Peter Maydell
eab9e9629c Migration bits from the COLO project
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Merge remote-tracking branch 'remotes/amit-migration/tags/migration-for-2.8' into staging

Migration bits from the COLO project

# gpg: Signature made Sun 30 Oct 2016 10:39:55 GMT
# gpg:                using RSA key 0xEB0B4DFC657EF670
# gpg: Good signature from "Amit Shah <amit@amitshah.net>"
# gpg:                 aka "Amit Shah <amit@kernel.org>"
# gpg:                 aka "Amit Shah <amitshah@gmx.net>"
# Primary key fingerprint: 48CA 3722 5FE7 F4A8 B337  2735 1E9A 3B5F 8540 83B6
#      Subkey fingerprint: CC63 D332 AB8F 4617 4529  6534 EB0B 4DFC 657E F670

* remotes/amit-migration/tags/migration-for-2.8:
  MAINTAINERS: Add maintainer for COLO framework related files
  configure: Support enable/disable COLO feature
  docs: Add documentation for COLO feature
  COLO: Implement failover work for secondary VM
  COLO: Implement the process of failover for primary VM
  COLO: Introduce state to record failover process
  COLO: Add 'x-colo-lost-heartbeat' command to trigger failover
  COLO: Synchronize PVM's state to SVM periodically
  COLO: Add checkpoint-delay parameter for migrate-set-parameters
  COLO: Load VMState into QIOChannelBuffer before restore it
  COLO: Send PVM state to secondary side when do checkpoint
  COLO: Add a new RunState RUN_STATE_COLO
  COLO: Introduce checkpointing protocol
  COLO: Establish a new communicating path for COLO
  migration: Switch to COLO process after finishing loadvm
  migration: Enter into COLO mode after migration if COLO is enabled
  COLO: migrate COLO related info to secondary node
  migration: Introduce capability 'x-colo' to migration

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-31 13:06:38 +00:00
zhanghailiang
21142ba7ff COLO: Add a new RunState RUN_STATE_COLO
Guest will enter this state when paused to save/restore VM state
under COLO checkpoint.

Cc: Eric Blake <eblake@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>
2016-10-30 15:17:39 +05:30
zhanghailiang
5821ebf93b COLO: migrate COLO related info to secondary node
We can determine whether or not VM in destination should go into COLO mode
by referring to the info that was migrated.

We skip this section if COLO is not enabled (i.e.
migrate_set_capability colo off), so that, It doesn't break compatibility
with migration no matter whether users configure the --enable-colo/disable-colo
on the source/destination side or not;

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Amit Shah <amit@amitshah.net>
2016-10-30 15:17:39 +05:30
Anand J
814bb12a56 clean-up: removed duplicate #includes
Some files contain multiple #includes of the same header file.
Removed most of those unnecessary duplicate entries using
scripts/clean-includes.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Anand J <anand.indukala@gmail.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-10-28 18:17:24 +03:00
Marc-André Lureau
bdbcb547cf monitor: deprecate 'default' option
This option does nothing since commit 06ac27f.  Deprecate it.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-10-28 18:17:23 +03:00
Kevin Wolf
a92bd191a4 fdc: Move qdev properties to FloppyDrive
This makes the FloppyDrive qdev object actually useful: Now that it has
all properties that don't belong to the controller, you can actually
use '-device floppy' and get a working result.

Command line semantics is consistent with CD-ROM drives: By default you
get a single empty floppy drive. You can override it with -drive and
using the same index, but if you use -drive to add a floppy to a
different index, you get both of them. However, as soon as you use any
'-device floppy', even to a different slot, the default drive is
disabled.

Using '-device floppy' without specifying the unit will choose the first
free slot on the controller.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-id: 1477386868-21826-4-git-send-email-kwolf@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2016-10-27 16:29:13 -04:00
Peter Maydell
20bccb82ff cpu: Support a target CPU having a variable page size
Support target CPUs having a page size which isn't knownn
at compile time. To use this, the CPU implementation should:
 * define TARGET_PAGE_BITS_VARY
 * not define TARGET_PAGE_BITS
 * define TARGET_PAGE_BITS_MIN to the smallest value it
   might possibly want for TARGET_PAGE_BITS
 * call set_preferred_target_page_bits() in its realize
   function to indicate the actual preferred target page
   size for the CPU (and report any error from it)

In CONFIG_USER_ONLY, the CPU implementation should continue
to define TARGET_PAGE_BITS appropriately for the guest
OS page size.

Machines which want to take advantage of having the page
size something larger than TARGET_PAGE_BITS_MIN must
set the MachineClass minimum_page_bits field to a value
which they guarantee will be no greater than the preferred
page size for any CPU they create.

Note that changing the target page size by setting
minimum_page_bits is a migration compatibility break
for that machine.

For debugging purposes, attempts to use TARGET_PAGE_SIZE
before it has been finally confirmed will assert.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <rth@twiddle.net>
2016-10-24 16:26:49 +01:00
Marc-André Lureau
c39860e6dc char: replace qemu_chr_claim/release with qemu_chr_fe_init/deinit
Now that all front end use qemu_chr_fe_init(), we can move chardev
claiming in init(), and add a function deinit() to release the chardev
and cleanup handlers.

The qemu_chr_fe_claim_no_fail() for property are gone, since the
property will raise an error instead. In other cases, where there is
already an error path, an error is raised instead. Finally, other cases
are handled by &error_abort in qemu_chr_fe_init().

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-19-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-10-24 15:27:21 +02:00
Marc-André Lureau
b4948be93e char: remove init callback
The CharDriverState.init() callback is no longer set since commit
a61ae7f88c and thus unused. The only user, the malta FGPA display has
been converted to use an event "opened" callback instead.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20161022095318.17775-7-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-10-24 15:27:20 +02:00
Thomas Huth
0781dd6e79 Put the copyright information on a separate line
The output string QEMU with "--version" is very long, it does
not fit into a normal line of a terminal window anymore. By
putting the copyright information on a separate line instead,
the output looks much nicer.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1475661284-30153-1-git-send-email-thuth@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-10-24 11:30:55 +02:00
Peter Maydell
f525c8a6cb machine + memory backend queue, 2016-10-17
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Merge remote-tracking branch 'remotes/ehabkost/tags/machine-pull-request' into staging

machine + memory backend queue, 2016-10-17

# gpg: Signature made Mon 17 Oct 2016 18:54:57 BST
# gpg:                using RSA key 0x2807936F984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"
# Primary key fingerprint: 5A32 2FD5 ABC4 D3DB ACCF  D1AA 2807 936F 984D C5A6

* remotes/ehabkost/tags/machine-pull-request:
  hostmem-file: Register TYPE_MEMORY_BACKEND_FILE properties as class properties
  hostmem: Register TYPE_MEMORY_BACKEND properties as class properties
  pc: Register TYPE_PC_MACHINE properties as class properties
  machine: Register TYPE_MACHINE properties as class properties
  machine: Fix replacement of '_' by '-' in machine property names

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-18 10:33:30 +01:00
Michael Olbrich
4c8afda7d2 hw/arm/boot: allow using a command line specified dtb without a kernel
When kernel and device tree are specified in the QEMU commandline, then
this device tree may be modified e.g. to add virtio_mmio devices.
With a bootloader e.g. on a flash device these extra devices are not
available.
With this change, the device tree can be specified at the QEMU commandline.
The modified device tree made available to the bootloader with the same
mechanism already supported by device trees fully generated by QEMU.

Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Message-id: 1473520054-402-1-git-send-email-m.olbrich@pengutronix.de
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-17 19:22:17 +01:00
Markus Armbruster
f279ee4583 machine: Fix replacement of '_' by '-' in machine property names
machine_set_property() replaces '_' by '-' in the property name.
Except it fails to replace an initial '_'.  Screwed up in commit
b0ddb8b.  Reproducer: "-M pc,__foo_bar=true" produces "Property
'._-foo-bar' not found".

Error messages using a mangled name rather than the name the user
actually wrote is user-hostile, but that's a different topic.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2016-10-17 15:48:40 -02:00
Daniel P. Berrange
fe4db84d49 trace: provide mechanism for registering trace events
Remove the notion of there being a single global array
of trace events, by introducing a method for registering
groups of events.

The module_call_init() needs to be invoked at the start
of any program that wants to make use of the trace
support. Currently this covers system emulators qemu-nbd,
qemu-img and qemu-io.

[Squashed the following fix from Daniel P. Berrange
<berrange@redhat.com>:

linux-user/bsd-user: initialize trace events subsystem

The bsd-user/linux-user programs make use of the CPU emulation
code and this now requires that the trace events subsystem
is enabled, otherwise it'll crash trying to allocate an empty
trace events bitmap for the CPU object.

--Stefan]

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Lluís Vilanova <vilanova@ac.upc.edu>
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 1475588159-30598-14-git-send-email-berrange@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-10-12 09:52:50 +02:00
Peter Maydell
0f183e679d Block layer patches
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Merge remote-tracking branch 'remotes/kevin/tags/for-upstream' into staging

Block layer patches

# gpg: Signature made Mon 10 Oct 2016 12:33:14 BST
# gpg:                using RSA key 0x7F09B272C88F2FD6
# gpg: Good signature from "Kevin Wolf <kwolf@redhat.com>"
# Primary key fingerprint: DC3D EB15 9A9A F95D 3D74  56FE 7F09 B272 C88F 2FD6

* remotes/kevin/tags/for-upstream:
  dmg: Move libbz2 code to dmg-bz2.so
  module: Don't load the same module if requested multiple times
  scripts: Allow block module to not define BlockDriver
  block: Add qdev ID to DEVICE_TRAY_MOVED
  block-backend: Remember if attached device is non-qdev
  block: Add node name to BLOCK_IO_ERROR event
  block: Add bdrv_runtime_opts to query-command-line-options
  block: use aio_bh_schedule_oneshot
  async: add aio_bh_schedule_oneshot
  block: use bdrv_add_before_write_notifier

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-10-10 15:19:20 +01:00
Kevin Wolf
c5f3014b82 block: Add bdrv_runtime_opts to query-command-line-options
Recently we moved a few options from QemuOptsLists in blockdev.c to
bdrv_runtime_opts in block.c in order to make them accissble using
blockdev-add. However, this has the side effect that these options are
missing from query-command-line-options now, and libvirt consequently
disables the corresponding feature.

This problem was reported as a regression for the 'discard' option,
introduced in commit 818584a4. However, it is more general than that.

Fix it by adding bdrv_runtime_opts to the list of QemuOptsLists that are
returned in query-command-line-options. For the future, libvirt is
advised to use QMP schema introspection for block device options.

Reported-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Tested-by: Michal Privoznik <mprivozn@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
2016-10-07 13:34:07 +02:00
Michal Privoznik
fbe7e3327a qemu_kill_report: Report PID name too
When qemu is being killed, its last words are:

2016-08-31T11:48:15.293587Z qemu-system-x86_64: terminating on signal 15 from pid 11180

That's nice, but what process is 11180? What if I told you we can
do better:

2016-08-31T11:48:15.293587Z qemu-system-x86_64: terminating on signal 15 from pid 11180 (/usr/sbin/libvirtd)

And that's exactly what this patch does.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Message-Id: <a2ba85a8e349a0ea9ee06424226197a03cd04bd3.1474987617.git.mprivozn@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-10-04 10:00:27 +02:00
Peter Maydell
cc9a366d3b -----BEGIN PGP SIGNATURE-----
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/stefanha/tags/tracing-pull-request' into staging

# gpg: Signature made Wed 28 Sep 2016 22:30:45 BST
# gpg:                using RSA key 0x9CA4ABB381AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg:                 aka "Stefan Hajnoczi <stefanha@gmail.com>"
# Primary key fingerprint: 8695 A8BF D3F9 7CDA AC35  775A 9CA4 ABB3 81AB 73C8

* remotes/stefanha/tags/tracing-pull-request:
  trace: Document the execution mode of guest events
  trace: Add event "guest_cpu_reset"
  trace: Add event "guest_cpu_enter"
  trace: Properly initialize dynamic event states in hot-plugged vCPUs
  trace: move hw/virtio/virtio-balloon.c trace points into correct file
  trace: move hw/mem/pc-dimm.c trace points into correct file
  trace: move util/qemu-coroutine*.c trace points into correct file
  trace: move util/buffer.c trace points into correct file

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-29 00:34:20 +01:00
Peter Maydell
c640f2849e * thread-safe tb_flush (Fred, Alex, Sergey, me, Richard, Emilio,... :-)
* license clarification for compiler.h (Felipe)
 * glib cflags improvement (Marc-André)
 * checkpatch silencing (Paolo)
 * SMRAM migration fix (Paolo)
 * Replay improvements (Pavel)
 * IOMMU notifier improvements (Peter)
 * IOAPIC now defaults to version 0x20 (Peter)
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* thread-safe tb_flush (Fred, Alex, Sergey, me, Richard, Emilio,... :-)
* license clarification for compiler.h (Felipe)
* glib cflags improvement (Marc-André)
* checkpatch silencing (Paolo)
* SMRAM migration fix (Paolo)
* Replay improvements (Pavel)
* IOMMU notifier improvements (Peter)
* IOAPIC now defaults to version 0x20 (Peter)

# gpg: Signature made Tue 27 Sep 2016 10:57:40 BST
# gpg:                using RSA key 0xBFFBD25F78C7AE83
# gpg: Good signature from "Paolo Bonzini <bonzini@gnu.org>"
# gpg:                 aka "Paolo Bonzini <pbonzini@redhat.com>"
# Primary key fingerprint: 46F5 9FBD 57D6 12E7 BFD4  E2F7 7E15 100C CD36 69B1
#      Subkey fingerprint: F133 3857 4B66 2389 866C  7682 BFFB D25F 78C7 AE83

* remotes/bonzini/tags/for-upstream: (28 commits)
  replay: allow replay stopping and restarting
  replay: vmstate for replay module
  replay: move internal data to the structure
  cpus-common: lock-free fast path for cpu_exec_start/end
  tcg: Make tb_flush() thread safe
  cpus-common: Introduce async_safe_run_on_cpu()
  cpus-common: simplify locking for start_exclusive/end_exclusive
  cpus-common: remove redundant call to exclusive_idle()
  cpus-common: always defer async_run_on_cpu work items
  docs: include formal model for TCG exclusive sections
  cpus-common: move exclusive work infrastructure from linux-user
  cpus-common: fix uninitialized variable use in run_on_cpu
  cpus-common: move CPU work item management to common code
  cpus-common: move CPU list management to common code
  linux-user: Add qemu_cpu_is_self() and qemu_cpu_kick()
  linux-user: Use QemuMutex and QemuCond
  cpus: Rename flush_queued_work()
  cpus: Move common code out of {async_, }run_on_cpu()
  cpus: pass CPUState to run_on_cpu helpers
  build-sys: put glib_cflags in QEMU_CFLAGS
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-28 23:02:56 +01:00
Lluís Vilanova
2bfe11c8fa trace: Properly initialize dynamic event states in hot-plugged vCPUs
Every time a vCPU is hot-plugged, it will "inherit" its tracing state
from the global state array. That is, if *any* existing vCPU has an
event enabled, new vCPUs will have too.

Signed-off-by: Lluís Vilanova <vilanova@ac.upc.edu>
Message-id: 147428970768.15111.7664565956870423529.stgit@fimbulvetr.bsc.es
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2016-09-28 19:17:55 +01:00
Pavel Dovgalyuk
6d0ceb80ff replay: allow replay stopping and restarting
This patch fixes bug with stopping and restarting replay
through monitor.

Signed-off-by: Pavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-Id: <20160926080815.6992.71818.stgit@PASHA-ISP>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-27 11:57:30 +02:00
Paolo Bonzini
267f685b8b cpus-common: move CPU list management to common code
Add a mutex for the CPU list to system emulation, as it will be used to
manage safe work.  Abstract manipulation of the CPU list in new functions
cpu_list_add and cpu_list_remove.

Reviewed-by: Richard Henderson <rth@twiddle.net>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-09-27 11:57:29 +02:00
Zhang Chen
e6eee8ab51 filter-rewriter: introduce filter-rewriter initialization
Filter-rewriter is a part of COLO project.
It will rewrite some of secondary packet to make
secondary guest's tcp connection established successfully.
In this module we will rewrite tcp packet's ack to the secondary
from primary,and rewrite tcp packet's seq to the primary from
secondary.

usage:

colo secondary:
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
-object filter-rewriter,id=rew0,netdev=hn0,queue=all

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 17:54:22 +08:00
Zhang Chen
7dce4e6fd2 colo-compare: introduce colo compare initialization
This a COLO net ascii figure:

 Primary qemu                                                           Secondary qemu
+--------------------------------------------------------------+       +----------------------------------------------------------------+
| +----------------------------------------------------------+ |       |  +-----------------------------------------------------------+ |
| |                                                          | |       |  |                                                           | |
| |                        guest                             | |       |  |                        guest                              | |
| |                                                          | |       |  |                                                           | |
| +-------^--------------------------+-----------------------+ |       |  +---------------------+--------+----------------------------+ |
|         |                          |                         |       |                        ^        |                              |
|         |                          |                         |       |                        |        |                              |
|         |  +------------------------------------------------------+  |                        |        |                              |
|netfilter|  |                       |                         |    |  |   netfilter            |        |                              |
| +----------+ +----------------------------+                  |    |  |  +-----------------------------------------------------------+ |
| |       |  |                       |      |        out       |    |  |  |                     |        |  filter excute order       | |
| |       |  |          +-----------------------------+        |    |  |  |                     |        | +------------------->      | |
| |       |  |          |            |      |         |        |    |  |  |                     |        |   TCP                      | |
| | +-----+--+-+  +-----v----+ +-----v----+ |pri +----+----+sec|    |  |  | +------------+  +---+----+---v+rewriter++  +------------+ | |
| | |          |  |          | |          | |in  |         |in |    |  |  | |            |  |        |              |  |            | | |
| | |  filter  |  |  filter  | |  filter  +------>  colo   <------+ +-------->  filter   +--> adjust |   adjust     +-->   filter   | | |
| | |  mirror  |  |redirector| |redirector| |    | compare |   |  |    |  | | redirector |  | ack    |   seq        |  | redirector | | |
| | |          |  |          | |          | |    |         |   |  |    |  | |            |  |        |              |  |            | | |
| | +----^-----+  +----+-----+ +----------+ |    +---------+   |  |    |  | +------------+  +--------+--------------+  +---+--------+ | |
| |      |   tx        |   rx           rx  |                  |  |    |  |            tx                        all       |  rx      | |
| |      |             |                    |                  |  |    |  +-----------------------------------------------------------+ |
| |      |             +--------------+     |                  |  |    |                                                   |            |
| |      |   filter excute order      |     |                  |  |    |                                                   |            |
| |      |  +---------------->        |     |                  |  +--------------------------------------------------------+            |
| +-----------------------------------------+                  |       |                                                                |
|        |                            |                        |       |                                                                |
+--------------------------------------------------------------+       +----------------------------------------------------------------+
         |guest receive               | guest send
         |                            |
+--------+----------------------------v------------------------+
|                                                              |                          NOTE: filter direction is rx/tx/all
|                         tap                                  |                          rx:receive packets sent to the netdev
|                                                              |                          tx:receive packets sent by the netdev
+--------------------------------------------------------------+

In COLO-compare, we do packet comparing job.
Packets coming from the primary char indev will be sent to outdev.
Packets coming from the secondary char dev will be dropped after comparing.
colo-comapre need two input chardev and one output chardev:
primary_in=chardev1-id (source: primary send packet)
secondary_in=chardev2-id (source: secondary send packet)
outdev=chardev3-id

usage:

primary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,downscript=/etc/qemu-ifdown
-device e1000,id=e0,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=mirror0,host=3.3.3.3,port=9003,server,nowait
-chardev socket,id=compare1,host=3.3.3.3,port=9004,server,nowait
-chardev socket,id=compare0,host=3.3.3.3,port=9001,server,nowait
-chardev socket,id=compare0-0,host=3.3.3.3,port=9001
-chardev socket,id=compare_out,host=3.3.3.3,port=9005,server,nowait
-chardev socket,id=compare_out0,host=3.3.3.3,port=9005
-object filter-mirror,id=m0,netdev=hn0,queue=tx,outdev=mirror0
-object filter-redirector,netdev=hn0,id=redire0,queue=rx,indev=compare_out
-object filter-redirector,netdev=hn0,id=redire1,queue=rx,outdev=compare0
-object colo-compare,id=comp0,primary_in=compare0-0,secondary_in=compare1,outdev=compare_out0

secondary:
-netdev tap,id=hn0,vhost=off,script=/etc/qemu-ifup,down script=/etc/qemu-ifdown
-device e1000,netdev=hn0,mac=52:a4:00:12:78:66
-chardev socket,id=red0,host=3.3.3.3,port=9003
-chardev socket,id=red1,host=3.3.3.3,port=9004
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2016-09-27 17:54:21 +08:00
Fam Zheng
9c5ce8db2e vl: Switch qemu_uuid to QemuUUID
Update all qemu_uuid users as well, especially get rid of the duplicated
low level g_strdup_printf, sscanf and snprintf calls with QEMU UUID API.

Since qemu_uuid_parse is quite tangled with qemu_uuid, its switching to
QemuUUID is done here too to keep everything in sync and avoid code
churn.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-10-git-send-email-famz@redhat.com>
2016-09-23 11:42:52 +08:00
Fam Zheng
cea25275a3 util: Add UUID API
A number of different places across the code base use CONFIG_UUID. Some
of them are soft dependency, some are not built if libuuid is not
available, some come with dummy fallback, some throws runtime error.

It is hard to maintain, and hard to reason for users.

Since UUID is a simple standard with only a small number of operations,
it is cleaner to have a central support in libqemuutil. This patch adds
qemu_uuid_* functions that all uuid users in the code base can
rely on. Except for qemu_uuid_generate which is new code, all other
functions are just copy from existing fallbacks from other files.

Note that qemu_uuid_parse is moved without updating the function
signature to use QemuUUID, to keep this patch simple.

Signed-off-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Jeff Cody <jcody@redhat.com>
Message-Id: <1474432046-325-2-git-send-email-famz@redhat.com>
2016-09-23 11:42:52 +08:00
Colin Lord
f57b4b5fb1 blockdev: prepare iSCSI block driver for dynamic loading
This commit moves the initialization of the QemuOptsList qemu_iscsi_opts
struct out of block/iscsi.c in order to allow the iscsi module to be
dynamically loaded.

Signed-off-by: Colin Lord <clord@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1471008424-16465-2-git-send-email-clord@redhat.com
Reviewed-by: Max Reitz <mreitz@redhat.com>
Signed-off-by: Max Reitz <mreitz@redhat.com>
2016-09-20 22:10:57 +02:00
Marc-André Lureau
c823501ea9 monitor: use qmp_find_command() (using generated qapi code)
Stop using the so-called 'middle' mode. Instead, use qmp_find_command()
from generated qapi commands registry. Update and fix the documentation
too.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20160912091913.15831-10-marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2016-09-19 17:32:21 +02:00
Peter Maydell
507e4ddc3a trivial patches for 2016-09-13
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Merge remote-tracking branch 'remotes/mjt/tags/trivial-patches-fetch' into staging

trivial patches for 2016-09-13

# gpg: Signature made Tue 13 Sep 2016 16:53:11 BST
# gpg:                using RSA key 0x701B4F6B1A693E59
# gpg: Good signature from "Michael Tokarev <mjt@tls.msk.ru>"
# gpg:                 aka "Michael Tokarev <mjt@corpit.ru>"
# gpg:                 aka "Michael Tokarev <mjt@debian.org>"
# Primary key fingerprint: 6EE1 95D1 886E 8FFB 810D  4324 457C E0A0 8044 65C5
#      Subkey fingerprint: 7B73 BAD6 8BE7 A2C2 8931  4B22 701B 4F6B 1A69 3E59

* remotes/mjt/tags/trivial-patches-fetch:
  hw/net/e1000e: Fix compiler warning
  target-m68k: fix get_mac_extf helper
  timer/cpus: fix some typos and update some comments
  timer.h: fix inconsistency between comment and function prototype
  timer.h: fix typo
  maint: Ignore generated version file
  Document that curses usually needs -k option too
  trace-event: display "%d" instead of "0x%d"
  linux-user, trivial: display "0x%x" instead of "0x%d"
  pic: fix typo in error message: KVM_GET_IRQCHIP -> KVM_SET_IRQCHIP
  sparc: Use g_memdup() instead of g_new0() + memcpy()
  vl: remove unnecessary duplicate call to tpm_cleanup
  arm: spelling fix: mismatch
  hw/dma/omap: spelling fix: endianness
  hw/bt/hci: spelling fix: endianness
  docs: Fix description of the leaky bucket algorithm in throttle.txt

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2016-09-13 17:55:35 +01:00
Paolo Bonzini
bc82585a8f vl: remove unnecessary duplicate call to tpm_cleanup
tpm_cleanup is called from main() and also registered with atexit from
tpm_init.  The function only visits the tpm_backends linked list, and the
atexit registration happens right after tpm_init fills in the list from
-tpmdev options.  Therefore, the direct call is unnecessary.  Remove it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2016-09-13 18:12:34 +03:00