Commit Graph

2034 Commits

Author SHA1 Message Date
Thomas Huth
c0188e69d3 bt: Mark the bluetooth subsystem as deprecated
It has been unmaintained since years, and there were only trivial or
tree-wide changes to the related files since many years, so the
code is likely very bitrotten and broken. For example the following
segfaults as soon as as you press a key:

 qemu-system-x86_64 -usb -device usb-bt-dongle -bt hci -bt device:keyboard

Since we are not aware of anybody using bluetooth with the current
version of QEMU, let's mark the subsystem as deprecated, with a special
request for the users to write to the qemu-devel mailing list in case
they still use it (so we could revert the deprecation status in that
case).

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-id: 1542016830-19189-1-git-send-email-thuth@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-11-12 14:08:17 +01:00
Eric Blake
0c57893d62 vl: Avoid crash when -mon is underspecified
A quick coredump on an incomplete command line:
./x86_64-softmmu/qemu-system-x86_64 -mon mode=control,pretty=on

 #0  0x00007ffff723d9e4 in g_str_hash () at /lib64/libglib-2.0.so.0
 #1  0x00007ffff723ce38 in g_hash_table_lookup () at /lib64/libglib-2.0.so.0
 #2  0x0000555555cc0073 in object_class_property_find (klass=0x5555566a94b0, name=0x0, errp=0x0) at qom/object.c:1135
 #3  0x0000555555cc004b in object_class_property_find (klass=0x5555566a9440, name=0x0, errp=0x0) at qom/object.c:1129
 #4  0x0000555555cbfe6e in object_property_find (obj=0x5555568348c0, name=0x0, errp=0x0) at qom/object.c:1080
 #5  0x0000555555cc183d in object_resolve_path_component (parent=0x5555568348c0, part=0x0) at qom/object.c:1762
 #6  0x0000555555d82071 in qemu_chr_find (name=0x0) at chardev/char.c:802
 #7  0x00005555559d77cb in mon_init_func (opaque=0x0, opts=0x5555566b65a0, errp=0x0) at vl.c:2291

Fix it to instead fail gracefully.

Signed-off-by: Eric Blake <eblake@redhat.com>
Message-Id: <20181023213600.364086-1-eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-11-06 17:03:29 +01:00
Max Reitz
679be303f7 fw_cfg: Drop newline in @file description
There is no good reason why there should be a newline in this
description, so remove it.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-11-05 15:18:08 +01:00
Max Reitz
da3273adcd object: Make option help nicer to read
Just like in qemu_opts_print_help(), print the object name as a caption
instead of on every single line, indent all options, add angle brackets
around types, and align the descriptions after 24 characters.

Also, indent every object name in the list of available objects.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2018-11-05 15:18:06 +01:00
Igor Mammedov
268430be5e vl:c: make sure that sockets are calculated correctly in '-smp X' case
commit
  (5cdc9b76e3 vl.c: Remove dead assignment)
removed sockets calculation when 'sockets' weren't provided on CLI
since there wasn't any users for it back then. Exiting checks
are neither reachable
   } else if (sockets * cores * threads < cpus) {
or nor triggerable
   if (sockets * cores * threads > max_cpus)
so we weren't noticing wrong topology since then, since users
recalculate sockets adhoc on their own.

However with deprecation check it becomes noticable, for example
  -smp 2
will start printing warning:
  "warning: Invalid CPU topology deprecated: sockets (1) * cores (1) * threads (1) != maxcpus (2)"
calculating sockets if they weren't specified.

Fix it by returning back sockets calculation if it's omitted on CLI.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Message-Id: <1536836762-273036-3-git-send-email-imammedo@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-10-24 06:44:59 -03:00
Igor Mammedov
bc1fb850a3 vl.c deprecate incorrect CPUs topology
-smp [cpus],sockets/cores/threads[,maxcpus] should describe topology
so that total number of logical CPUs [sockets * cores * threads]
would be equal to [maxcpus], however historically we didn't have
such check in QEMU and it is possible to start VM with an invalid
topology.
Deprecate invalid options combination so we can make sure that
the topology VM started with is always correct in the future.
Users with an invalid sockets/cores/threads/maxcpus values should
fix their CLI to make sure that
   [sockets * cores * threads] == [maxcpus]

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Andrew Jones <drjones@redhat.com>
Reviewed-by: Eduardo Habkost <ehabkost@redhat.com>
Message-Id: <1536836762-273036-2-git-send-email-imammedo@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[ehabkost: squashed unit test fix]
Message-Id: <20181019215345.521d58d7@igors-macbook-pro.local>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
2018-10-24 06:44:59 -03:00
Peter Maydell
13399aad4f Error reporting patches for 2018-10-22
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2018-10-22' into staging

Error reporting patches for 2018-10-22

# gpg: Signature made Mon 22 Oct 2018 13:20:23 BST
# gpg:                using RSA key 3870B400EB918653
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>"
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>"
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-error-2018-10-22: (40 commits)
  error: Drop bogus "use error_setg() instead" admonitions
  vpc: Fail open on bad header checksum
  block: Clean up bdrv_img_create()'s error reporting
  vl: Simplify call of parse_name()
  vl: Fix exit status for -drive format=help
  blockdev: Convert drive_new() to Error
  vl: Assert drive_new() does not fail in default_drive()
  fsdev: Clean up error reporting in qemu_fsdev_add()
  spice: Clean up error reporting in add_channel()
  tpm: Clean up error reporting in tpm_init_tpmdev()
  numa: Clean up error reporting in parse_numa()
  vnc: Clean up error reporting in vnc_init_func()
  ui: Convert vnc_display_init(), init_keyboard_layout() to Error
  ui/keymaps: Fix handling of erroneous include files
  vl: Clean up error reporting in device_init_func()
  vl: Clean up error reporting in parse_fw_cfg()
  vl: Clean up error reporting in mon_init_func()
  vl: Clean up error reporting in machine_set_property()
  vl: Clean up error reporting in chardev_init_func()
  qom: Clean up error reporting in user_creatable_add_opts_foreach()
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-23 17:20:23 +01:00
Peter Maydell
b312532fd0 * RTC fixes (Artem)
* icount fixes (Artem)
 * rr fixes (Pavel, myself)
 * hotplug cleanup (Igor)
 * SCSI fixes (myself)
 * 4.20-rc1 KVM header update (myself)
 * coalesced PIO support (Peng Hao)
 * HVF fixes (Roman B.)
 * Hyper-V refactoring (Roman K.)
 * Support for Hyper-V IPI (Vitaly)
 -----BEGIN PGP SIGNATURE-----
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* RTC fixes (Artem)
* icount fixes (Artem)
* rr fixes (Pavel, myself)
* hotplug cleanup (Igor)
* SCSI fixes (myself)
* 4.20-rc1 KVM header update (myself)
* coalesced PIO support (Peng Hao)
* HVF fixes (Roman B.)
* Hyper-V refactoring (Roman K.)
* Support for Hyper-V IPI (Vitaly)

# gpg: Signature made Fri 19 Oct 2018 12:47:58 BST
# gpg:                using RSA key BFFBD25F78C7AE83
# 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: (47 commits)
  replay: pass raw icount value to replay_save_clock
  target/i386: kvm: just return after migrate_add_blocker failed
  hyperv_testdev: add SynIC message and event testmodes
  hyperv: process POST_MESSAGE hypercall
  hyperv: add support for KVM_HYPERV_EVENTFD
  hyperv: process SIGNAL_EVENT hypercall
  hyperv: add synic event flag signaling
  hyperv: add synic message delivery
  hyperv: make overlay pages for SynIC
  hyperv: only add SynIC in compatible configurations
  hyperv: qom-ify SynIC
  hyperv:synic: split capability testing and setting
  i386: add hyperv-stub for CONFIG_HYPERV=n
  default-configs: collect CONFIG_HYPERV* in hyperv.mak
  hyperv: factor out arch-independent API into hw/hyperv
  hyperv: make hyperv_vp_index inline
  hyperv: split hyperv-proto.h into x86 and arch-independent parts
  hyperv: rename kvm_hv_sint_route_set_sint
  hyperv: make HvSintRoute reference-counted
  hyperv: address HvSintRoute by X86CPU pointer
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-10-19 19:01:07 +01:00
Markus Armbruster
5343bda42b vl: Simplify call of parse_name()
main() checks for parse_name() failure even though it can't actually
fail.  That's okay.  Simplify it to check by passing &error_fatal,
like the other users of qemu_opts_foreach().

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-36-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
7c89fcbac8 vl: Fix exit status for -drive format=help
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20181017082702.5581-35-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
c4f26c9f37 blockdev: Convert drive_new() to Error
Calling error_report() from within a function that takes an Error **
argument is suspicious.  drive_new() calls error_report() even though
it can run within drive_init_func(), which takes an Error ** argument.
drive_init_func()'s caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway:

* Convert drive_new() to Error

* Update add_init_drive() to report the error received from
  drive_new()

* Make main() pass &error_fatal through qemu_opts_foreach(),
  drive_init_func() to drive_new()

* Make default_drive() pass &error_abort through qemu_opts_foreach(),
  drive_init_func() to drive_new()

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-34-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
f881ca19f1 vl: Assert drive_new() does not fail in default_drive()
If creating (empty) default drives fails, it's a bug.  Therefore,
assert() is more appropriate than exit(1).

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Max Reitz <mreitz@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20181017082702.5581-33-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
b836723dfe fsdev: Clean up error reporting in qemu_fsdev_add()
Calling error_report() from within a function that takes an Error **
argument is suspicious.  qemu_fsdev_add() does that, and its caller
fsdev_init_func() then fails without setting an error.  Its caller
main(), via qemu_opts_foreach(), is fine with it, but clean it up
anyway.

Cc: Greg Kurz <groug@kaod.org>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Acked-by: Greg Kurz <groug@kaod.org>
Message-Id: <20181017082702.5581-32-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
d10e05f15d tpm: Clean up error reporting in tpm_init_tpmdev()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  tpm_init_tpmdev() does that, and then fails without
setting an error.  Its caller main(), via tpm_init() and
qemu_opts_foreach(), is fine with it, but clean it up anyway.

Cc: Stefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Message-Id: <20181017082702.5581-30-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
612aea2017 vnc: Clean up error reporting in vnc_init_func()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  vnc_init_func() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

While there, drop a "Failed to start VNC server: " error message
prefix that doesn't really add value.

Cc: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-28-armbru@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
cd65f34991 vl: Clean up error reporting in device_init_func()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  device_init_func() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181017082702.5581-25-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
406b6367e1 vl: Clean up error reporting in parse_fw_cfg()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  parse_fw_cfg() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-24-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
2d5a3a8b02 vl: Clean up error reporting in mon_init_func()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  mon_init_func() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-23-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
702832b8c0 vl: Clean up error reporting in machine_set_property()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  machine_set_property() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-22-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
dd4af97733 vl: Clean up error reporting in chardev_init_func()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  chardev_init_func() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-21-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
7e1e0c1112 qom: Clean up error reporting in user_creatable_add_opts_foreach()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  user_creatable_add_opts_foreach() does that, and then
fails without setting an error.  Its caller main(), via
qemu_opts_foreach(), is fine with it, but clean it up anyway.

Cc: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-20-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
6353218b8c vl: Clean up error reporting in parse_add_fd()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  parse_add_fd() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

Also change call of cleanup_add_fd(), which can't fail, for symmetry.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20181017082702.5581-19-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
6548459769 seccomp: Clean up error reporting in parse_sandbox()
Calling error_report() in a function that takes an Error ** argument
is suspicious.  parse_sandbox() does that, and then fails without
setting an error.  Its caller main(), via qemu_opts_foreach(), is fine
with it, but clean it up anyway.

Cc: Eduardo Otubo <otubo@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Eduardo Otubo <otubo@redhat.com>
Message-Id: <20181017082702.5581-18-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Markus Armbruster
50beeb6809 Use error_fatal to simplify obvious fatal errors (again)
Add a slight improvement of the Coccinelle semantic patch from commit
007b06578a, and use it to clean up.  It leaves dead Error * variables
behind, cleaned up manually.

Cc: David Gibson <david@gibson.dropbear.id.au>
Cc: Alexander Graf <agraf@suse.de>
Cc: Eric Blake <eblake@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Acked-by: David Gibson <david@gibson.dropbear.id.au>
Message-Id: <20181017082702.5581-3-armbru@redhat.com>
2018-10-19 14:51:34 +02:00
Philippe Mathieu-Daudé
d7ecf71238 vl: Print error when using incorrect backend for debugcon
When using an incorrect backend for the debugcon, QEMU exits silently
without any error indication, which is confusing.
Add a message that the character backend is invalid.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20181011171254.32428-1-philmd@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-10-19 14:40:15 +02:00
Artem Pisarenko
ac0989f53d vl, qapi: offset calculation in RTC_CHANGE event reverted
Return value of qemu_timedate_diff(), used for calculation offset in
QAPI 'RTC_CHANGE' event, restored to keep compatibility. Since it
wasn't documented that difference is relative to host clock
advancement, this change also adds important note to 'RTC_CHANGE'
event description to highlight established implementation specifics.

Signed-off-by: Artem Pisarenko <artem.k.pisarenko@gmail.com>
Message-Id: <1fc12c77e8b7115d3842919a8b586d9cbe4efca6.1539846575.git.artem.k.pisarenko@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:12 +02:00
Artem Pisarenko
eb6a520991 Fixes RTC bug with base datetime shifts in clock=vm
This makes all current "-rtc" option parameters combinations produce
fixed/unambiguous RTC timedate reference for hardware emulation
frontends.
It restores determinism of guest execution when used with clock=vm and
specified base <datetime> value.

Buglink: https://bugs.launchpad.net/qemu/+bug/1797033
Signed-off-by: Artem Pisarenko <artem.k.pisarenko@gmail.com>
Message-Id: <1d963c3e013dfedafa1f6edb9fb219b7e49e39da.1539846575.git.artem.k.pisarenko@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:12 +02:00
Artem Pisarenko
7e166ebd8c vl: refactor -rtc option references
Improve code readability and prepare for fixing bug #1797033

Signed-off-by: Artem Pisarenko <artem.k.pisarenko@gmail.com>
Message-Id: <9330a48899f997431a34460014886d118a7c0960.1539846575.git.artem.k.pisarenko@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-19 13:44:12 +02:00
Zhang Chen
aad555c229 COLO: Remove colo_state migration struct
We need to know if migration is going into COLO state for
incoming side before start normal migration.

Instead by using the VMStateDescription to send colo_state
from source side to destination side, we use MIG_CMD_ENABLE_COLO
to indicate whether COLO is enabled or not.

Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Zhang Chen <zhangckid@gmail.com>
Signed-off-by: Zhang Chen <chen.zhang@intel.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2018-10-19 11:15:03 +08:00
Marc-André Lureau
1195fa2b08 vl: list user creatable properties when 'help' is argument
Iterate over the writable class properties, sort and print them out
with the description if available.

Ex: qemu -object memory-backend-file,help
memory-backend-file.align=int
memory-backend-file.discard-data=bool
memory-backend-file.dump=bool - Set to 'off' to exclude from core dump
memory-backend-file.host-nodes=int - Binds memory to the list of NUMA host nodes
memory-backend-file.mem-path=string
memory-backend-file.merge=bool - Mark memory as mergeable
memory-backend-file.pmem=bool
memory-backend-file.policy=HostMemPolicy - Set the NUMA policy
memory-backend-file.prealloc=bool - Preallocate memory
memory-backend-file.share=bool - Mark the memory as private to QEMU or shared
memory-backend-file.size=int - Size of the memory region (ex: 500M)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:27:09 +04:00
Marc-André Lureau
bb15cbc053 vl: handle -object help
List the user creatable objects.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-05 16:27:09 +04:00
Marc-André Lureau
95e30b2a13 chardev: mark the calls that allow an implicit mux monitor
This is mostly for readability of the code. Let's make it clear which
callers can create an implicit monitor when the chardev is muxed.

This will also enforce a safer behaviour, as we don't really support
creating monitor anywhere/anytime at the moment. Add an assert() to
make sure the programmer explicitely wanted that behaviour.

There are documented cases, such as: -serial/-parallel/-virtioconsole
and to less extent -debugcon.

Less obvious and questionable ones are -gdb, SLIRP -guestfwd and Xen
console. Add a FIXME note for those, but keep the support for now.

Other qemu_chr_new() callers either have a fixed parameter/filename
string or do not need it, such as -qtest:

* qtest.c: qtest_init()
  Afaik, only used by tests/libqtest.c, without mux. I don't think we
  support it outside of qemu testing: drop support for implicit mux
  monitor (qemu_chr_new() call: no implicit mux now).

* hw/
  All with literal @filename argument that doesn't enable mux monitor.

* tests/
  All with @filename argument that doesn't enable mux monitor.

On a related note, the list of monitor creation places:

- the chardev creators listed above: all from command line (except
  perhaps Xen console?)

- -gdb & hmp gdbserver will create a "GDB monitor command" chardev
  that is wired to an HMP monitor.

- -mon command line option

From this short study, I would like to think that a monitor may only
be created in the main thread today, though I remain skeptical :)

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2018-10-03 14:45:05 +04:00
Pavel Dovgalyuk
bb3d7702e8 replay: allow loading any snapshots before recording
This patch enables using -loadvm in recording mode to allow starting
the execution recording from any of the available snapshots.
It also fixes loading of the record/replay state, therefore snapshots
created in replay mode may also be used for starting the new recording.

Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru>
Message-Id: <20180912081939.3228.56131.stgit@pasha-VirtualBox>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-02 19:08:58 +02:00
Marc-André Lureau
90a84d131c Delete PID file on exit
Register an exit notifier to remove the PID file. By the time atexit()
is called, qemu_write_pidfile() guarantees QEMU owns the PID file,
thus we could safely remove it when exiting.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180907121319.8607-4-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-02 18:47:55 +02:00
Marc-André Lureau
9e6bdef224 util: add qemu_write_pidfile()
There are variants of qemu_create_pidfile() in qemu-pr-helper and
qemu-ga. Let's have a common implementation in libqemuutil.

The code is initially based from pr-helper write_pidfile(), with
various improvements and suggestions from Daniel Berrangé:

  QEMU will leave the pidfile existing on disk when it exits which
  initially made me think it avoids the deletion race. The app
  managing QEMU, however, may well delete the pidfile after it has
  seen QEMU exit, and even if the app locks the pidfile before
  deleting it, there is still a race.

  eg consider the following sequence

        QEMU 1        libvirtd        QEMU 2

  1.    lock(pidfile)

  2.    exit()

  3.                 open(pidfile)

  4.                 lock(pidfile)

  5.                                  open(pidfile)

  6.                 unlink(pidfile)

  7.                 close(pidfile)

  8.                                  lock(pidfile)

  IOW, at step 8 the new QEMU has successfully acquired the lock, but
  the pidfile no longer exists on disk because it was deleted after
  the original QEMU exited.

  While we could just say no external app should ever delete the
  pidfile, I don't think that is satisfactory as people don't read
  docs, and admins don't like stale pidfiles being left around on
  disk.

  To make this robust, I think we might want to copy libvirt's
  approach to pidfile acquisition which runs in a loop and checks that
  the file on disk /after/ acquiring the lock matches the file that
  was locked. Then we could in fact safely let QEMU delete its own
  pidfiles on clean exit..

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20180831145314.14736-2-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-10-02 18:47:55 +02:00
Peter Maydell
042938f46e Migration pull 2018-09-26
This supercedes Juan's pull from the 13th
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Merge remote-tracking branch 'remotes/dgilbert/tags/pull-migration-20180926a' into staging

Migration pull 2018-09-26

This supercedes Juan's pull from the 13th

# gpg: Signature made Wed 26 Sep 2018 18:07:30 BST
# gpg:                using RSA key 0516331EBC5BFDE7
# gpg: Good signature from "Dr. David Alan Gilbert (RH2) <dgilbert@redhat.com>"
# Primary key fingerprint: 45F5 C71B 4A0C B7FB 977A  9FA9 0516 331E BC5B FDE7

* remotes/dgilbert/tags/pull-migration-20180926a:
  migration/ram.c: Avoid taking address of fields in packed MultiFDInit_t struct
  migration: fix the compression code
  migration: fix QEMUFile leak
  tests/migration: Speed up the test on ppc64
  migration: cleanup in error paths in loadvm
  migration/postcopy: Clear have_listen_thread
  tests/migration: Add migration-test header file
  tests/migration: Support cross compilation in generating boot header file
  tests/migration: Convert x86 boot block compilation script into Makefile
  migration: use save_page_use_compression in flush_compressed_data
  migration: show the statistics of compression
  migration: do not flush_compressed_data at the end of iteration
  Add a hint message to loadvm and exits on failure
  migration: handle the error condition properly
  migration: fix calculating xbzrle_counters.cache_miss_rate
  migration/rdma: Fix uninitialised rdma_return_path

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-09-28 17:07:23 +01:00
Peter Maydell
567ea80834 pull-seccomp-20180926
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Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20180926' into staging

pull-seccomp-20180926

# gpg: Signature made Wed 26 Sep 2018 14:20:06 BST
# gpg:                using RSA key DF32E7C0F0FFF9A2
# gpg: Good signature from "Eduardo Otubo (Senior Software Engineer) <otubo@redhat.com>"
# Primary key fingerprint: D67E 1B50 9374 86B4 0723  DBAB DF32 E7C0 F0FF F9A2

* remotes/otubo/tags/pull-seccomp-20180926:
  seccomp: check TSYNC host capability

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-09-28 14:17:12 +01:00
Marc-André Lureau
5780760f5e seccomp: check TSYNC host capability
Remove -sandbox option if the host is not capable of TSYNC, since the
sandbox will fail at setup time otherwise. This will help libvirt, for
ex, to figure out if -sandbox will work.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Eduardo Otubo <otubo@redhat.com>
Acked-by: Eduardo Otubo <otubo@redhat.com>
2018-09-26 15:07:35 +02:00
Jose Ricardo Ziviani
827beacb47 Add a hint message to loadvm and exits on failure
This patch adds a small hint for the failure case of the load snapshot
process. It may be useful for users to remember that the VM
configuration has changed between the save and load processes.

(qemu) loadvm vm-20180903083641
Unknown savevm section or instance 'cpu_common' 4.
Make sure that your current VM setup matches your saved VM setup, including any hotplugged devices
Error -22 while loading VM state
(qemu) device_add host-spapr-cpu-core,core-id=4
(qemu) loadvm vm-20180903083641
(qemu) c
(qemu) info status
VM status: running

It also exits Qemu if the snapshot cannot be loaded before reaching the
main loop (-loadvm in the command line).

$ qemu-system-ppc64 ... -loadvm vm-20180903083641
qemu-system-ppc64: Unknown savevm section or instance 'cpu_common' 4.
Make sure that your current VM setup matches your saved VM setup, including any hotplugged devices
qemu-system-ppc64: Error -22 while loading VM state
$

Signed-off-by: Jose Ricardo Ziviani <joserz@linux.ibm.com>
Message-Id: <20180903162613.15877-1-joserz@linux.ibm.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
2018-09-26 12:26:38 +01:00
Peter Maydell
09d8277eb0 Removal of deprecated options and improvements for the qtests
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Merge remote-tracking branch 'remotes/huth-gitlab/tags/pull-request-2018-08-31' into staging

Removal of deprecated options and improvements for the qtests

# gpg: Signature made Fri 31 Aug 2018 09:10:23 BST
# gpg:                using RSA key 2ED9D774FE702DB5
# gpg: Good signature from "Thomas Huth <th.huth@gmx.de>"
# gpg:                 aka "Thomas Huth <thuth@redhat.com>"
# gpg:                 aka "Thomas Huth <huth@tuxfamily.org>"
# gpg:                 aka "Thomas Huth <th.huth@posteo.de>"
# Primary key fingerprint: 27B8 8847 EEE0 2501 18F3  EAB9 2ED9 D774 FE70 2DB5

* remotes/huth-gitlab/tags/pull-request-2018-08-31:
  tests: add a qmp success-response test
  tests: add qmp/qom-set-without-value test
  tests: add qmp/object-add-without-props test
  tests: add qmp_assert_error_class()
  tests/libqos: Utilize newer glib spawn check
  net: Remove the deprecated -tftp, -bootp, -redir and -smb options
  Remove the deprecated options -startdate, -localtime and -rtc-td-hack
  Remove the deprecated -nodefconfig option
  Remove the deprecated -balloon option

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-09-24 12:28:37 +01:00
Thomas Huth
d18572dd9a net: Remove the deprecated -tftp, -bootp, -redir and -smb options
These options likely do not work as expected as soon as the user
tries to use more than one network interface at once. The parameters
have been marked as deprecated since QEMU v2.6, so users had plenty
of time to move their scripts to the new syntax. Time to remove the
old parameters now.

Reviewed-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-08-31 09:53:03 +02:00
Thomas Huth
fdaf2d5885 Remove the deprecated options -startdate, -localtime and -rtc-td-hack
Deprecated since two releases, nobody complained, thus it's time to
remove them now.

Acked-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-08-31 09:52:55 +02:00
Thomas Huth
2feac451d2 Remove the deprecated -nodefconfig option
It's the same as -no-user-config and marked as deprecated since three
releases already. Time to remove it now.

Acked-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-08-31 09:52:46 +02:00
Thomas Huth
1d9cb42c56 Remove the deprecated -balloon option
The "-balloon" option has been replaced by "-device virtio-balloon".
It's been marked as deprecated since two releases, and nobody
complained, so let's remove it now.

Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Acked-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2018-08-31 09:52:13 +02:00
Peter Xu
3ab72385b2 qapi: Drop qapi_event_send_FOO()'s Error ** argument
The generated qapi_event_send_FOO() take an Error ** argument.  They
can't actually fail, because all they do with the argument is passing it
to functions that can't fail: the QObject output visitor, and the
@qmp_emit callback, which is either monitor_qapi_event_queue() or
event_test_emit().

Drop the argument, and pass &error_abort to the QObject output visitor
and @qmp_emit instead.

Suggested-by: Eric Blake <eblake@redhat.com>
Suggested-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Peter Xu <peterx@redhat.com>
Message-Id: <20180815133747.25032-4-peterx@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
[Commit message rewritten, update to qapi-code-gen.txt corrected]
Signed-off-by: Markus Armbruster <armbru@redhat.com>
2018-08-28 18:21:38 +02:00
Prasad Singamsetty
1fdd474871 kvm: add call to qemu_add_opts() for -overcommit option
qemu command fails to process -overcommit option. Add the missing
call to qemu_add_opts() in vl.c.

Signed-off-by: Prasad Singamsetty <prasad.singamsetty@oracle.com>
Message-Id: <20180815175704.105902-1-prasad.singamsetty@oracle.com>
Reviewed-by: Mark Kanda <mark.kanda@oracle.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Emilio G. Cota
12df189de1 vl: add -enable-sync-profile
Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 18:46:25 +02:00
Thomas Huth
a3ab1dc072 net: Silence 'has no peer' messages in testing mode
When running qtests with -nodefaults, we are not interested in
these 'XYZ has no peer' messages.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <1534419358-10932-3-git-send-email-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-08-23 13:32:50 +02:00
Peter Maydell
e8c858944e * IEC units series (Philippe)
* Hyper-V PV TLB flush (Vitaly)
 * git archive detection (Daniel)
 * host serial passthrough fix (David)
 * NPT support for SVM emulation (Jan)
 * x86 "info mem" and "info tlb" fix (Doug)
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Merge remote-tracking branch 'remotes/bonzini/tags/for-upstream' into staging

* IEC units series (Philippe)
* Hyper-V PV TLB flush (Vitaly)
* git archive detection (Daniel)
* host serial passthrough fix (David)
* NPT support for SVM emulation (Jan)
* x86 "info mem" and "info tlb" fix (Doug)

# gpg: Signature made Mon 02 Jul 2018 16:18:21 BST
# gpg:                using RSA key BFFBD25F78C7AE83
# 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: (50 commits)
  tcg: simplify !CONFIG_TCG handling of tb_invalidate_*
  i386/monitor.c: make addresses canonical for "info mem" and "info tlb"
  target-i386: Add NPT support
  serial: Open non-block
  bsd-user: Use the IEC binary prefix definitions
  linux-user: Use the IEC binary prefix definitions
  tests/crypto: Use the IEC binary prefix definitions
  vl: Use the IEC binary prefix definitions
  monitor: Use the IEC binary prefix definitions
  cutils: Do not include "qemu/units.h" directly
  hw/rdma: Use the IEC binary prefix definitions
  hw/virtio: Use the IEC binary prefix definitions
  hw/vfio: Use the IEC binary prefix definitions
  hw/sd: Use the IEC binary prefix definitions
  hw/usb: Use the IEC binary prefix definitions
  hw/net: Use the IEC binary prefix definitions
  hw/i386: Use the IEC binary prefix definitions
  hw/ppc: Use the IEC binary prefix definitions
  hw/mips: Use the IEC binary prefix definitions
  hw/mips/r4k: Constify params_size
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2018-07-02 19:07:19 +01:00
Philippe Mathieu-Daudé
3dc54b0eda vl: Use the IEC binary prefix definitions
It eases code review, unit is explicit.

Patch generated using:

  $ git grep -n '[<>][<>]= ?[1-5]0'

and modified manually.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180625124238.25339-44-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2018-07-02 15:41:17 +02:00