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| author | Igor Mammedov <imammedo@redhat.com> | 2023-05-22 15:17:17 +0200 |
|---|---|---|
| committer | Thomas Huth <thuth@redhat.com> | 2023-05-26 09:37:04 +0200 |
| commit | a37531f2381c4e294e48b1417089474128388b44 (patch) | |
| tree | 056ce576dde2adbf59af04bbde58e97f6c5d4ca0 /hw/core | |
| parent | 031616cd75ea1cea40eb130f4f4e900aeb0b2be4 (diff) | |
| download | qemu-a37531f2381c4e294e48b1417089474128388b44.zip qemu-a37531f2381c4e294e48b1417089474128388b44.tar.gz qemu-a37531f2381c4e294e48b1417089474128388b44.tar.bz2 | |
machine: do not crash if default RAM backend name has been stolen
QEMU aborts when default RAM backend should be used (i.e. no
explicit '-machine memory-backend=' specified) but user
has created an object which 'id' equals to default RAM backend
name used by board.
$QEMU -machine pc \
-object memory-backend-ram,id=pc.ram,size=4294967296
Actual results:
QEMU 7.2.0 monitor - type 'help' for more information
(qemu) Unexpected error in object_property_try_add() at ../qom/object.c:1239:
qemu-kvm: attempt to add duplicate property 'pc.ram' to object (type 'container')
Aborted (core dumped)
Instead of abort, check for the conflicting 'id' and exit with
an error, suggesting how to remedy the issue.
Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=2207886
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Message-Id: <20230522131717.3780533-1-imammedo@redhat.com>
Tested-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Shaoqin Huang <shahuang@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'hw/core')
| -rw-r--r-- | hw/core/machine.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/hw/core/machine.c b/hw/core/machine.c index 07f763e..1000406 100644 --- a/hw/core/machine.c +++ b/hw/core/machine.c @@ -1338,6 +1338,14 @@ void machine_run_board_init(MachineState *machine, const char *mem_path, Error * } } else if (machine_class->default_ram_id && machine->ram_size && numa_uses_legacy_mem()) { + if (object_property_find(object_get_objects_root(), + machine_class->default_ram_id)) { + error_setg(errp, "object name '%s' is reserved for the default" + " RAM backend, it can't be used for any other purposes." + " Change the object's 'id' to something else", + machine_class->default_ram_id); + return; + } if (!create_default_memdev(current_machine, mem_path, errp)) { return; } |