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softmmu: fix crash with invalid -M memory-backend=

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Fixes: fe64d06afc ("vl.c: ensure that
ram_size matches size of machine.memory-backend")
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200309145155.168942-1-marcandre.lureau@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Marc-André Lureau 2020-03-09 15:51:55 +01:00 committed by Paolo Bonzini
parent 3b703feaf8
commit 4951247d8b
1 changed files with 5 additions and 0 deletions
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5
softmmu/vl.c
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@ -4298,6 +4298,11 @@ void qemu_init(int argc, char **argv, char **envp)
backend = object_resolve_path_type(current_machine->ram_memdev_id,
TYPE_MEMORY_BACKEND, NULL);
if (!backend) {
error_report("Memory backend '%s' not found",
current_machine->ram_memdev_id);
exit(EXIT_FAILURE);
}
backend_size = object_property_get_uint(backend, "size", &error_abort);
if (have_custom_ram_size && backend_size != ram_size) {
error_report("Size specified by -m option must match size of "