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While the FW_CFG_DATA_GENERATOR_INTERFACE is only consumed by a device only available using system-mode (fw_cfg), it is implemented by a crypto component (tls-cipher-suites) which is always available when crypto is used. Commit69699f3055introduced the following error in the qemu-storage-daemon binary: $ echo -e \ '{"execute": "qmp_capabilities"}\r\n{"execute": "qom-list-types"}\r\n{"execute": "quit"}\r\n' \ | storage-daemon/qemu-storage-daemon --chardev stdio,id=qmp0 --monitor qmp0 {"QMP": {"version": {"qemu": {"micro": 50, "minor": 1, "major": 5}, "package": ""}, "capabilities": ["oob"]}} {"return": {}} missing interface 'fw_cfg-data-generator' for object 'tls-creds' Aborted (core dumped) Since QOM dependencies are resolved at runtime, this issue could not be triggered at linktime, and we don't have test running the qemu-storage-daemon binary. Fix by always registering the QOM interface. Reported-by: Kevin Wolf <kwolf@redhat.com> Fixes:69699f3055("crypto/tls-cipher-suites: Produce fw_cfg consumable blob") Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Laszlo Ersek <lersek@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-Id: <20201006111909.2302081-2-philmd@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
24 lines
561 B
C
24 lines
561 B
C
/*
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* QEMU Firmware configuration device emulation (QOM interfaces)
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*
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* Copyright 2020 Red Hat, Inc.
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "qemu/osdep.h"
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#include "hw/nvram/fw_cfg.h"
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static const TypeInfo fw_cfg_data_generator_interface_info = {
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.parent = TYPE_INTERFACE,
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.name = TYPE_FW_CFG_DATA_GENERATOR_INTERFACE,
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.class_size = sizeof(FWCfgDataGeneratorClass),
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};
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static void fw_cfg_register_interfaces(void)
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{
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type_register_static(&fw_cfg_data_generator_interface_info);
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}
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type_init(fw_cfg_register_interfaces)
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