Commit Graph

180 Commits

Author SHA1 Message Date
Philippe Mathieu-Daudé
c80cafa0c7 softmmu: Add qemu_init_arch_modules()
module_allow_arch() is the single target-specific call in the
whole vl.c file. Move the module initialization out to arch_init.c,
that way we'll be able to build vl.o once for all targets (the
next commit).

Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20220207075426.81934-21-f4bug@amsat.org>
2022-03-06 13:15:42 +01:00
Peter Maydell
15e09912b7 include: Move hardware version declarations to new qemu/hw-version.h
The "hardware version" machinery (qemu_set_hw_version(),
qemu_hw_version(), and the QEMU_HW_VERSION define) is used by fewer
than 10 files.  Move it out from osdep.h into a new
qemu/hw-version.h.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20220208200856.3558249-6-peter.maydell@linaro.org
2022-02-21 13:30:20 +00:00
Daniel P. Berrangé
64b4529a43 softmmu: fix device deletion events with -device JSON syntax
The -device JSON syntax impl leaks a reference on the created
DeviceState instance. As a result when you hot-unplug the
device, the device_finalize method won't be called and thus
it will fail to emit the required DEVICE_DELETED event.

A 'json-cli' feature was previously added against the
'device_add' QMP command QAPI schema to indicated to mgmt
apps that -device supported JSON syntax. Given the hotplug
bug that feature flag is not usable for its purpose, so
we add a new 'json-cli-hotplug' feature to indicate the
-device supports JSON without breaking hotplug.

Fixes: 5dacda5167
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/802
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Message-Id: <20220105123847.4047954-2-berrange@redhat.com>
Reviewed-by: Laurent Vivier <lvivier@redhat.com>
Tested-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-01-14 12:03:16 +01:00
Emanuele Giuseppe Esposito
cc67f28ea2 include/sysemu/blockdev.h: remove drive_mark_claimed_by_board and inline drive_def
drive_def is only a particular use case of
qemu_opts_parse_noisily, so it can be inlined.

Also remove drive_mark_claimed_by_board, as it is only defined
but not implemented (nor used) anywhere.

Signed-off-by: Emanuele Giuseppe Esposito <eesposit@redhat.com>
Message-Id: <20211215121140.456939-3-eesposit@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2022-01-14 12:03:16 +01:00
Thomas Huth
fe86fe237c qemu-options: Remove the deprecated -no-quit option
This option was just a wrapper around the -display ...,window-close=off
parameter, and the name "no-quit" is rather confusing compared to
"window-close" (since there are still other means to quit the emulator),
so let's remove this now.

Message-Id: <20211215082417.180735-1-thuth@redhat.com>
Acked-by: Michal Prívozník <mprivozn@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2022-01-05 11:10:13 +01:00
Yanan Wang
864c3b5c32 hw/core/machine: Introduce CPU cluster topology support
The new Cluster-Aware Scheduling support has landed in Linux 5.16,
which has been proved to benefit the scheduling performance (e.g.
load balance and wake_affine strategy) on both x86_64 and AArch64.

So now in Linux 5.16 we have four-level arch-neutral CPU topology
definition like below and a new scheduler level for clusters.
struct cpu_topology {
    int thread_id;
    int core_id;
    int cluster_id;
    int package_id;
    int llc_id;
    cpumask_t thread_sibling;
    cpumask_t core_sibling;
    cpumask_t cluster_sibling;
    cpumask_t llc_sibling;
}

A cluster generally means a group of CPU cores which share L2 cache
or other mid-level resources, and it is the shared resources that
is used to improve scheduler's behavior. From the point of view of
the size range, it's between CPU die and CPU core. For example, on
some ARM64 Kunpeng servers, we have 6 clusters in each NUMA node,
and 4 CPU cores in each cluster. The 4 CPU cores share a separate
L2 cache and a L3 cache tag, which brings cache affinity advantage.

In virtualization, on the Hosts which have pClusters (physical
clusters), if we can design a vCPU topology with cluster level for
guest kernel and have a dedicated vCPU pinning. A Cluster-Aware
Guest kernel can also make use of the cache affinity of CPU clusters
to gain similar scheduling performance.

This patch adds infrastructure for CPU cluster level topology
configuration and parsing, so that the user can specify cluster
parameter if their machines support it.

Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
Message-Id: <20211228092221.21068-3-wangyanan55@huawei.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
[PMD: Added '(since 7.0)' to @clusters in qapi/machine.json]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2021-12-31 13:42:39 +01:00
Laurent Vivier
4067691a2f migration: fix dump-vmstate with modules
To work correctly -dump-vmstate and vmstate-static-checker.py need to
dump all the supported vmstates.

But as some devices can be modules, they are not loaded at startup and not
dumped. Fix that by loading all available modules before dumping the
machine vmstate.

Fixes: 7ab6e7fcce ("qdev: device module support")
Cc: kraxel@redhat.com
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20211116072840.132731-1-lvivier@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-11-22 11:14:28 +01:00
Paolo Bonzini
22afb46e7c watchdog: remove select_watchdog_action
Instead of invoking select_watchdog_action from both HMP and command line,
go directly from HMP to QMP and use QemuOpts as the intermediary for the
command line.

This makes -watchdog-action explicitly a shortcut for "-action watchdog",
so that "-watchdog-action" and "-action watchdog" override each other
based on the position on the command line; previously, "-action watchdog"
always won.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Paolo Bonzini
d12b64eaeb vl: deprecate -watchdog
-watchdog is the same as -device except that it is case insensitive (and it
allows only watchdog devices of course).  Now that "-device help" can list
as such the available watchdog devices, we can deprecate it.

Note that even though -watchdog tries to be case insensitive, it fails
at that: "-watchdog i6300xyz" fails with "Unknown -watchdog device",
but "-watchdog i6300ESB" also fails (when the generated -device option
is processed) with an error "'i6300ESB' is not a valid device model name".
For this reason, the documentation update does not mention the case
insensitivity of -watchdog.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-11-02 15:57:27 +01:00
Kevin Wolf
5dacda5167 vl: Enable JSON syntax for -device
Like we already do for -object, introduce support for JSON syntax in
-device, which can be kept stable in the long term and guarantees that a
single code path with identical behaviour is used for both QMP and the
command line. Compared to the QemuOpts based code, the parser contains
less surprises and has support for non-scalar options (lists and
structs). Switching management tools to JSON means that we can more
easily change the "human" CLI syntax from QemuOpts to the keyval parser
later.

In the QAPI schema, a feature flag is added to the device-add command to
allow management tools to detect support for this.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20211008133442.141332-16-kwolf@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Tested-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-10-15 16:11:22 +02:00
Thomas Huth
6695e4c0fd softmmu/vl: Deprecate the -sdl and -curses option
It's not that much complicated to type "-display sdl" or "-display curses",
so we should not clutter our main option name space with such simple
wrapper options and rather present the users with a concise interface
instead. Thus let's deprecate the "-sdl" and "-curses" wrapper options now.

Message-Id: <20210825092023.81396-4-thuth@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-09-06 10:00:14 +02:00
Thomas Huth
d46156fdcc softmmu/vl: Deprecate the old grab options
The alt_grab and ctrl_grab parameter of the -display sdl option prevent
the QAPIfication of the "sdl" part of the -display option, so we should
eventually remove them. And since this feature is also rather niche anyway,
we should not clutter the top-level option list with these, so let's
also deprecate the "-alt-grab" and the "-ctrl-grab" options while we're
at it.

Once the deprecation period of "alt_grab" and "ctrl_grab" is over, we
then can finally switch the -display sdl option to use QAPI internally,
too.

Message-Id: <20210825092023.81396-3-thuth@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-09-06 10:00:14 +02:00
Thomas Huth
8e8e844be4 softmmu/vl: Add a "grab-mod" parameter to the -display sdl option
The -display sdl option is not using QAPI internally yet, and uses hand-
crafted parsing instead (see parse_display() in vl.c), which is quite
ugly, since most of the other code is using the QAPIfied DisplayOption
already. Unfortunately, the "alt_grab" and "ctrl_grab" use underscores in
their names which has recently been forbidden in new QAPI code, so
a straight conversion is not possible. While we could add some exceptions
to the QAPI schema parser for this, the way these parameters have been
designed was maybe a bad idea anyway: First, it's not possible to enable
both parameters at the same time, thus instead of two boolean parameters
it would be better to have only one multi-choice parameter instead.
Second, the naming is also somewhat unfortunate since the "alt_grab"
parameter is not about the ALT key, but rather about the left SHIFT key
that has to be used additionally when the parameter is enabled.

So instead of trying to QAPIfy "alt_grab" and "ctrl_grab", let's rather
introduce an alternative to these parameters instead, a new parameter
called "grab-mod" which can either be set to "lshift-lctrl-lalt" or to
"rctrl". In case we ever want to support additional modes later, we can
then also simply extend the list of supported strings here.

Message-Id: <20210825092023.81396-2-thuth@redhat.com>
Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-09-06 10:00:14 +02:00
Peter Maydell
0289f62335 Error reporting patches for 2021-08-26
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Merge remote-tracking branch 'remotes/armbru/tags/pull-error-2021-08-26' into staging

Error reporting patches for 2021-08-26

# gpg: Signature made Thu 26 Aug 2021 16:17:05 BST
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-error-2021-08-26:
  vl: Clean up -smp error handling
  Remove superfluous ERRP_GUARD()
  vhost: Clean up how VhostOpts method vhost_backend_init() fails
  vhost: Clean up how VhostOpts method vhost_get_config() fails
  microvm: Drop dead error handling in microvm_machine_state_init()
  migration: Handle migration_incoming_setup() errors consistently
  migration: Unify failure check for migrate_add_blocker()
  whpx nvmm: Drop useless migrate_del_blocker()
  vfio: Avoid error_propagate() after migrate_add_blocker()
  i386: Never free migration blocker objects instead of sometimes
  vhost-scsi: Plug memory leak on migrate_add_blocker() failure
  multi-process: Fix pci_proxy_dev_realize() error handling
  spapr: Explain purpose of ->fwnmi_migration_blocker more clearly
  spapr: Plug memory leak when we can't add a migration blocker
  error: Use error_fatal to simplify obvious fatal errors (again)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-08-27 09:57:28 +01:00
Peter Maydell
6773fbf8c0 softmmu: Use accel_find("xen") instead of xen_available()
The xen_available() function is used only to produce an error
for some Xen-specific command line options in QEMU binaries where
Xen support was not compiled in: it just returns the value of
the CONFIG_XEN define.

Now that accelerators are QOM classes, we can check for
"does this binary have Xen compiled in" with accel_find("xen"),
and drop the xen_available() function.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-id: 20210730105947.28215-2-peter.maydell@linaro.org
2021-08-26 17:02:00 +01:00
Markus Armbruster
f9dfae9cb6 vl: Clean up -smp error handling
The Error ** argument must be NULL, &error_abort, &error_fatal, or a
pointer to a variable containing NULL.  Passing an argument of the
latter kind twice without clearing it in between is wrong: if the
first call sets an error, it no longer points to NULL for the second
call.

machine_parse_property_opt() is wrong that way: it passes @errp to
keyval_parse() without checking for failure, then passes it to
keyval_merge().  Harmless, since the only caller passes &error_fatal.

Clean up: drop the parameter, and use &error_fatal directly.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210720125408.387910-16-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
[Rebased, conflict with commit a3c2f12830 resolved]
2021-08-26 17:15:28 +02:00
Markus Armbruster
f9734d5d40 error: Use error_fatal to simplify obvious fatal errors (again)
We did this with scripts/coccinelle/use-error_fatal.cocci before, in
commit 50beeb6809 and 007b06578a.  This commit cleans up rarer
variations that don't seem worth matching with Coccinelle.

Cc: Thomas Huth <thuth@redhat.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Juan Quintela <quintela@redhat.com>
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Marc-André Lureau <marcandre.lureau@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210720125408.387910-2-armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Peter Xu <peterx@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
2021-08-26 17:15:28 +02:00
Paolo Bonzini
e4383ca240 vl: stop recording -smp in QemuOpts
-readconfig is still recording SMP options in QemuOpts instead of
using machine_opts_dict.  This means that SMP options from -readconfig
are ignored.

Just stop using QemuOpts for -smp, making it return false for
is_qemuopts_group.  Configuration files will merge the values in
machine_opts_dict using the new function machine_merge_property.

At the same time, fix -mem-prealloc which looked at QemuOpts to find the
number of guest CPUs, which it used as the default number of preallocation
threads.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-30 12:04:01 +02:00
Paolo Bonzini
a3c2f12830 vl: introduce machine_merge_property
It will be used to parse smp-opts config groups from configuration
files.  The point to note is that it does not steal a reference
from the caller.  This is better because this function will be called
from qemu_config_foreach's callback; qemu_config_foreach does not cede
its reference to the qdict to the callback, and wants to free it.  To
balance that extra reference, machine_parse_property_opt now needs
a qobject_unref.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-30 12:04:01 +02:00
Markus Armbruster
3e61a13af3 vl: Don't continue after -smp help.
We continue after -smp help:

    $ qemu-system-x86_64 -smp help -display none -monitor stdio
    smp-opts options:
      cores=<num>
      cpus=<num>
      dies=<num>
      maxcpus=<num>
      sockets=<num>
      threads=<num>
    QEMU 6.0.50 monitor - type 'help' for more information
    (qemu)

Other options, such as -object help and -device help, don't.

Adjust -smp not to continue either.

Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210720125408.387910-17-armbru@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-27 16:52:37 +02:00
Peter Maydell
a146af86c8 vga: fixes for qxl and virtio-gpu
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Merge remote-tracking branch 'remotes/kraxel/tags/vga-20210723-pull-request' into staging

vga: fixes for qxl and virtio-gpu

# gpg: Signature made Fri 23 Jul 2021 06:54:34 BST
# gpg:                using RSA key A0328CFFB93A17A79901FE7D4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/vga-20210723-pull-request:
  hw/display: fix virgl reset regression
  vl: add virtio-vga-gl to the default_list
  hw/display: fail early when multiple virgl devices are requested
  Revert "qxl: add migration blocker to avoid pre-save assert"
  qxl: remove assert in qxl_pre_save.
  hw/display/virtio-gpu: Fix memory leak (CID 1453811)

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-23 12:16:12 +01:00
Marc-André Lureau
f29d52611c vl: add virtio-vga-gl to the default_list
Do not instantiate an extra default VGA device if -device virtio-vga-gl
is provided.

Related to commit b36eb8860f ("virtio-gpu:
add virtio-vga-gl")

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-Id: <20210701062421.721414-1-marcandre.lureau@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-07-22 15:46:48 +02:00
Jason Andryuk
dadafe6785 vl: Parse legacy default_machine_opts
qemu can't start a xen vm after commit d8fb7d0969
"vl: switch -M parsing to keyval" with:

$ ./qemu-system-i386 -M xenfv
Unexpected error in object_property_find_err() at ../qom/object.c:1298:
qemu-system-i386: Property 'xenfv-3.1-machine.accel' not found
Aborted (core dumped)

The default_machine_opts handling doesn't process the legacy machine
options like "accel".  Call qemu_apply_legacy_machine_options to provide
the legacy handling.

Signed-off-by: Jason Andryuk <jandryuk@gmail.com>
Message-Id: <20210713021552.19110-1-jandryuk@gmail.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-20 17:06:28 +02:00
Paolo Bonzini
838e37007c vl: fix leak of qdict_crumple return value
Coverity reports that qemu_parse_config_group is returning without
unrefing the "crumpled" dictionary in case its top level item is a
list.  But actually the contract with qemu_record_config_group is
the same as for qemu_parse_config_group itself: if those function
need to stash the dictionary they get, they have to take a reference
themselves (currently this is never the case for either function).
Therefore, just add an unconditional qobject_unref(crumpled) to
qemu_parse_config_group.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:21:34 +02:00
Gerd Hoffmann
d7795d3cc5 modules: check arch and block load on mismatch
Add module_allow_arch() to set the target architecture.
In case a module is limited to some arch verify arches
match and ignore the module if not.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-19-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann
5111edaf9e modules: use modinfo for qemu opts load
Use module database to figure which module adds given QemuOpts group.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-17-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Gerd Hoffmann
5ebbfecc3e modules: generate modinfo.c
Add script to generate C source with a small
database containing the module meta-data.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Jose R. Ziviani <jziviani@suse.de>
Message-Id: <20210624103836.2382472-4-kraxel@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-09 18:20:27 +02:00
Paolo Bonzini
fe68090e8f machine: add smp compound property
Make -smp syntactic sugar for a compound property "-machine
smp.{cores,threads,cpu,...}".  machine_smp_parse is replaced by the
setter for the property.

numa-test will now cover the new syntax, while other tests
still use -smp.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06 08:33:51 +02:00
Paolo Bonzini
d8fb7d0969 vl: switch -M parsing to keyval
Switch from QemuOpts to keyval.  This enables the introduction
of non-scalar machine properties, and JSON syntax in the future.

For JSON syntax to be supported right now, we would have to
consider what would happen if string-based dictionaries (produced by
-M key=val) were to be merged with strongly-typed dictionaries
(produced by -M {'key': 123}).

The simplest way out is to never enter the situation, and only allow one
-M option when JSON syntax is in use.  However, we want options such as
-smp to become syntactic sugar for -M, and this is a problem; as soon
as -smp becomes a shortcut for -M, QEMU would forbid using -M '{....}'
together with -smp.  Therefore, allowing JSON syntax right now for -M
would be a forward-compatibility nightmare and it would be impossible
anyway to introduce -M incrementally in tools.

Instead, support for JSON syntax is delayed until after the main
options are converted to QOM compound properties.  These include -boot,
-acpitable, -smbios, -m, -semihosting-config, -rtc and -fw_cfg.  Once JSON
syntax is introduced, these options will _also_ be forbidden together
with -M '{...}'.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-06 08:33:51 +02:00
Thomas Huth
b6ddc6a2b2 ui: Mark the '-no-quit' option as deprecated
It's just a wrapper around the -display ...,window-close=off parameter,
and the name "no-quit" is rather confusing compared to "window-close"
(since there are still other means to quit the emulator), so we should
rather tell our users to use the "window-close" parameter instead.

While we're at it, update the documentation to state that
"-no-quit" is available for GTK, too, not only for SDL.

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210630163231.467987-4-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-05 19:21:07 +02:00
Thomas Huth
bb20b86db9 ui: Fix the "-display sdl,window_close=..." parameter
According to the QAPI schema, there is a "-" and not a "_" between
"window" and "close", and we're also talking about "window-close"
in the long parameter description in qemu-options.hx, so we should
make sure that we rather use the variant with the "-" by default
instead of only allowing the one with the "_" here. The old way
still stays enabled for compatibility, but we deprecate it, so that
we can switch to a QAPIfied parameter one day more easily.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210630163231.467987-3-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-05 19:21:05 +02:00
Thomas Huth
f6b560bbc1 softmmu/vl: Remove obsolete comment about the "frame" parameter
The frame parameter has been removed along with the support for
SDL 1.2.

Fixes: 09bd7ba9f5 ("Remove deprecated -no-frame option")
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210630163231.467987-2-thuth@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-07-05 19:20:46 +02:00
Thomas Huth
66c2207fd2 ui: Make the DisplayType enum entries conditional
Libvirt's "domcapabilities" command has a way to state whether certain
graphic frontends are available in QEMU or not. Originally, libvirt
looked at the "--help" output of the QEMU binary to determine whether
SDL was available or not (by looking for the "-sdl" parameter in the
help text), but since libvirt stopped doing this analysis of the help
text, the detection of SDL is currently broken, see:

 https://bugzilla.redhat.com/show_bug.cgi?id=1790902

QEMU should provide a way via the QMP interface instead. A simple way,
without introducing additional commands, is to make the DisplayType
enum entries conditional, so that the enum only contains the entries if
the corresponding CONFIG_xxx switches have been set. This of course
only gives an indication which possibilities have been enabled during
compile-time of QEMU (and does not take into account whether modules
are later available or not for example - for this we'd need a separate
command), but anyway, this should already be good enough for the above
bug ticket, and it's a good idea anyway to make the QMP interface
conditional here, so let's simply do it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210615090439.70926-1-thuth@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2021-06-23 14:42:30 +02:00
Zhenzhong Duan
38f71349c7 vl: Fix an assert failure in error path
Based on the description of error_setg(), the local variable err in
qemu_maybe_daemonize() should be initialized to NULL.

Without fix, the uninitialized *errp triggers assert failure which
doesn't show much valuable information.

Before the fix:
qemu-system-x86_64: ../util/error.c:59: error_setv: Assertion `*errp == NULL' failed.

After fix:
qemu-system-x86_64: cannot create PID file: Cannot open pid file: Permission denied

Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com>
Message-Id: <20210610084741.456260-1-zhenzhong.duan@intel.com>
Cc: qemu-stable@nongnu.org
Fixes: 0546c0609c ("vl: split various early command line options to a separate function", 2020-12-10)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-15 17:17:09 +02:00
Paolo Bonzini
49e987695a vl: plug -object back into -readconfig
Commit bc2f4fcb1d ("qom: move user_creatable_add_opts logic to vl.c
and QAPIfy it", 2021-03-19) switched the creation of objects from
qemu_opts_foreach to a bespoke QTAILQ in preparation for supporting JSON
syntax in -object.

Unfortunately in doing so it lost support for [object] stanzas in
configuration files and also for "-set object.ID.KEY=VAL".  The latter
is hard to re-establish and probably best solved by deprecating -set.
This patch uses the infrastructure introduced by the previous two
patches in order to parse QOM objects correctly from configuration
files.

Cc: Markus Armbruster <armbru@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210524105752.3318299-4-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-04 13:50:04 +02:00
Paolo Bonzini
c0d4aa82f8 vl: plumb keyval-based options into -readconfig
Let -readconfig support parsing command line options into QDict or
QemuOpts.  This will be used to add back support for objects in
-readconfig.

Cc: Markus Armbruster <armbru@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210524105752.3318299-3-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-04 13:50:04 +02:00
Paolo Bonzini
3770141139 qemu-config: parse configuration files to a QDict
Change the parser to put the values into a QDict and pass them
to a callback.  qemu_config_parse's QemuOpts creation is
itself turned into a callback function.

This is useful for -readconfig to support keyval-based options;
getting a QDict from the parser removes a roundtrip from
QDict to QemuOpts and then back to QDict.

Unfortunately there is a disadvantage in that semantic errors will
point to the last line of the group, because the entries of the QDict
do not have a location attached.

Cc: Kevin Wolf <kwolf@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210524105752.3318299-2-pbonzini@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-06-04 13:50:01 +02:00
Paolo Bonzini
632a887350 qemu-config: load modules when instantiating option groups
Right now the SPICE module is special cased to be loaded when processing
of the -spice command line option.  However, the spice option group
can also be brought in via -readconfig, in which case the module is
not loaded.

Add a generic hook to load modules that provide a QemuOpts group,
and use it for the "spice" and "iscsi" groups.

Fixes: #194
Fixes: https://bugs.launchpad.net/qemu/+bug/1910696
Cc: qemu-stable@nongnu.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-26 14:49:46 +02:00
Paolo Bonzini
d349f92f78 vl: allow not specifying size in -m when using -M memory-backend
Starting in QEMU 6.0's commit f5c9fcb82d ("vl: separate
qemu_create_machine", 2020-12-10), a function have_custom_ram_size()
replaced the return value of set_memory_options().

The purpose of the return value was to record the presence of
"-m size", and if it was not there, change the default RAM
size to the size of the memory backend passed with "-M
memory-backend".

With that commit, however, have_custom_ram_size() is now queried only
after set_memory_options has stored the fixed-up RAM size in QemuOpts for
"future use".  This was actually the only future use of the fixed-up RAM
size, so remove that code and fix the bug.

Cc: qemu-stable@nongnu.org
Fixes: f5c9fcb82d ("vl: separate qemu_create_machine", 2020-12-10)
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-26 14:49:46 +02:00
Paolo Bonzini
fd5fc4b12d remove qemu-options* from root directory
These headers are also included from softmmu/vl.c, so they should be
in include/.  Remove qemu-options-wrapper.h, since elsewhere
we include "template" headers directly and #define the parameters in
the including file; move qemu-options.h to include/.

Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-26 14:49:46 +02:00
Paolo Bonzini
6ba7ada355 qtest: add a QOM object for qtest
The qtest server right now can only be created using the -qtest
and -qtest-log options.  Allow an alternative way to create it
using "-object qtest,chardev=...,log=...".

This is part of the long term plan to make more (or all) of
QEMU configurable through QMP and preconfig mode.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-26 14:49:45 +02:00
Claudio Fontana
92242f34ab accel: move call to accel_init_interfaces
move the call for sysemu specifically in machine_run_board_init,
mirror the calling sequence for user mode too.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Claudio Fontana <cfontana@suse.de>
Message-Id: <20210322132800.7470-23-cfontana@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2021-05-10 15:41:52 -04:00
Thomas Huth
ead62c75f6 Do not include hw/boards.h if it's not really necessary
Stop including hw/boards.h in files that don't need it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-3-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-02 17:24:51 +02:00
Peter Maydell
2e1293cbaa QAPI patches patches for 2021-03-16
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Merge remote-tracking branch 'remotes/armbru/tags/pull-qapi-2021-03-16-v4' into staging

QAPI patches patches for 2021-03-16

# gpg: Signature made Fri 19 Mar 2021 15:06:52 GMT
# gpg:                using RSA key 354BC8B3D7EB2A6B68674E5F3870B400EB918653
# gpg:                issuer "armbru@redhat.com"
# gpg: Good signature from "Markus Armbruster <armbru@redhat.com>" [full]
# gpg:                 aka "Markus Armbruster <armbru@pond.sub.org>" [full]
# Primary key fingerprint: 354B C8B3 D7EB 2A6B 6867  4E5F 3870 B400 EB91 8653

* remotes/armbru/tags/pull-qapi-2021-03-16-v4:
  qapi: New -compat deprecated-input=crash
  qapi: Implement deprecated-input=reject for QMP command arguments
  qapi: Implement deprecated-input=reject for QMP commands
  test-util-sockets: Add stub for monitor_set_cur()
  qapi: Implement deprecated-output=hide for QMP introspection
  monitor: Drop query-qmp-schema 'gen': false hack
  qapi: Implement deprecated-output=hide for QMP event data
  qapi: Implement deprecated-output=hide for QMP events
  qapi: Implement deprecated-output=hide for QMP command results
  qemu-options: New -compat to set policy for deprecated interfaces
  qemuutil: remove qemu_set_fd_handler duplicate symbol

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-03-19 16:40:00 +00:00
Markus Armbruster
6dd75472d5 qemu-options: New -compat to set policy for deprecated interfaces
New option -compat lets you configure what to do when deprecated
interfaces get used.  This is intended for testing users of the
management interfaces.  It is experimental.

-compat deprecated-input=<input-policy> configures what to do when
deprecated input is received.  Input policy can be "accept" (accept
silently), or "reject" (reject the request with an error).

-compat deprecated-output=<out-policy> configures what to do when
deprecated output is sent.  Output policy can be "accept" (pass on
unchanged), or "hide" (filter out the deprecated parts).

Default is "accept".  Policies other than "accept" are implemented
later in this series.

For now, -compat covers only syntactic aspects of QMP, i.e. stuff
tagged with feature 'deprecated'.  We may want to extend it to cover
semantic aspects, CLI, and experimental features.

Note that there is no good way for management application to detect
presence of -compat: it's not visible output of query-qmp-schema or
query-command-line-options.  Tolerable, because it's meant for
testing.  If running with -compat fails, skip the test.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20210318155519.1224118-3-armbru@redhat.com>
2021-03-19 15:43:33 +01:00
Markus Armbruster
e178113ff6 hw: Replace anti-social QOM type names
Several QOM type names contain ',':

    ARM,bitband-memory
    etraxfs,pic
    etraxfs,serial
    etraxfs,timer
    fsl,imx25
    fsl,imx31
    fsl,imx6
    fsl,imx6ul
    fsl,imx7
    grlib,ahbpnp
    grlib,apbpnp
    grlib,apbuart
    grlib,gptimer
    grlib,irqmp
    qemu,register
    SUNW,bpp
    SUNW,CS4231
    SUNW,DBRI
    SUNW,DBRI.prom
    SUNW,fdtwo
    SUNW,sx
    SUNW,tcx
    xilinx,zynq_slcr
    xlnx,zynqmp
    xlnx,zynqmp-pmu-soc
    xlnx,zynq-xadc

These are all device types.  They can't be plugged with -device /
device_add, except for xlnx,zynqmp-pmu-soc, and I doubt that one
actually works.

They *can* be used with -device / device_add to request help.
Usability is poor, though: you have to double the comma, like this:

    $ qemu-system-x86_64 -device SUNW,,fdtwo,help

Trap for the unwary.  The fact that this was broken in
device-introspect-test for more than six years until commit e27bd49876
fixed it demonstrates that "the unwary" includes seasoned developers.

One QOM type name contains ' ': "ICH9 SMB".  Because having to
remember just one way to quote would be too easy.

Rename the "SUNW,FOO types to "sun-FOO".  Summarily replace ',' and '
' by '-' in the other type names.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210304140229.575481-2-armbru@redhat.com>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2021-03-19 15:18:43 +01:00
Markus Armbruster
fe9f70a1c3 blockdev: Drop deprecated bogus -drive interface type
Drop the crap deprecated in commit a1b40bda08 "blockdev: Deprecate
-drive with bogus interface type" (v5.1.0).

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: John Snow <jsnow@redhat.com>
Message-id: 20210309161214.1402527-5-armbru@redhat.com
Signed-off-by: John Snow <jsnow@redhat.com>
2021-03-19 15:18:43 +01:00
Paolo Bonzini
009ff89328 vl: allow passing JSON to -object
Extend the ObjectOption code that was added in the previous patch to
enable passing JSON to -object.  Even though we cannot yet add
non-scalar properties with the human-friendly comma-separated syntax,
they can now be added as JSON.

Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210312173547.1283477-4-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-03-19 10:18:17 +01:00
Paolo Bonzini
bc2f4fcb1d qom: move user_creatable_add_opts logic to vl.c and QAPIfy it
Emulators are currently using OptsVisitor (via user_creatable_add_opts)
to parse the -object command line option.  This has one extra feature,
compared to keyval, which is automatic conversion of integers to lists
as well as support for lists as repeated options:

  -object memory-backend-ram,id=pc.ram,size=1048576000,host-nodes=0,policy=bind

So we cannot replace OptsVisitor with keyval right now.  Still, this
patch moves the user_creatable_add_opts logic to vl.c since it is
not needed anywhere else, and makes it go through user_creatable_add_qapi.

In order to minimize code changes, the predicate still takes a string.
This can be changed later to use the ObjectType QAPI enum directly.

Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <20210312173547.1283477-3-pbonzini@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-03-19 10:18:17 +01:00
Daniel P. Berrangé
b501018339 hw/ide: remove 'ide-drive' device
The 'ide-hd' and 'ide-cd' devices provide suitable alternatives.

Reviewed-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-03-18 09:22:55 +00:00