diff options
| -rw-r--r-- | chardev/char.c | 2 | ||||
| -rw-r--r-- | hmp-commands.hx | 18 | ||||
| -rw-r--r-- | hmp.c | 34 | ||||
| -rw-r--r-- | hmp.h | 1 | ||||
| -rw-r--r-- | include/chardev/char.h | 10 | ||||
| -rw-r--r-- | tests/test-hmp.c | 1 |
6 files changed, 64 insertions, 2 deletions
diff --git a/chardev/char.c b/chardev/char.c index d6b9d89e93..c34b44abc9 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -567,7 +567,7 @@ static const char *chardev_alias_translate(const char *name) return name; } -static ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, Error **errp) +ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, Error **errp) { Error *local_err = NULL; const ChardevClass *cc; diff --git a/hmp-commands.hx b/hmp-commands.hx index 75f8bac01b..b3a8707dad 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1726,7 +1726,23 @@ ETEXI STEXI @item chardev-add args @findex chardev-add -chardev_add accepts the same parameters as the -chardev command line switch. +chardev-add accepts the same parameters as the -chardev command line switch. + +ETEXI + + { + .name = "chardev-change", + .args_type = "id:s,args:s", + .params = "id args", + .help = "change chardev", + .cmd = hmp_chardev_change, + }, + +STEXI +@item chardev-change args +@findex chardev-change +chardev-change accepts existing chardev @var{id} and then the same arguments +as the -chardev command line switch (except for "id"). ETEXI @@ -2197,6 +2197,40 @@ void hmp_chardev_add(Monitor *mon, const QDict *qdict) hmp_handle_error(mon, &err); } +void hmp_chardev_change(Monitor *mon, const QDict *qdict) +{ + const char *args = qdict_get_str(qdict, "args"); + const char *id; + Error *err = NULL; + ChardevBackend *backend = NULL; + ChardevReturn *ret = NULL; + QemuOpts *opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), args, + true); + if (!opts) { + error_setg(&err, "Parsing chardev args failed"); + goto end; + } + + id = qdict_get_str(qdict, "id"); + if (qemu_opts_id(opts)) { + error_setg(&err, "Unexpected 'id' parameter"); + goto end; + } + + backend = qemu_chr_parse_opts(opts, &err); + if (!backend) { + goto end; + } + + ret = qmp_chardev_change(id, backend, &err); + +end: + qapi_free_ChardevReturn(ret); + qapi_free_ChardevBackend(backend); + qemu_opts_del(opts); + hmp_handle_error(mon, &err); +} + void hmp_chardev_remove(Monitor *mon, const QDict *qdict) { Error *local_err = NULL; @@ -102,6 +102,7 @@ void hmp_nbd_server_start(Monitor *mon, const QDict *qdict); void hmp_nbd_server_add(Monitor *mon, const QDict *qdict); void hmp_nbd_server_stop(Monitor *mon, const QDict *qdict); void hmp_chardev_add(Monitor *mon, const QDict *qdict); +void hmp_chardev_change(Monitor *mon, const QDict *qdict); void hmp_chardev_remove(Monitor *mon, const QDict *qdict); void hmp_chardev_send_break(Monitor *mon, const QDict *qdict); void hmp_qemu_io(Monitor *mon, const QDict *qdict); diff --git a/include/chardev/char.h b/include/chardev/char.h index 22fd734999..1604ea9143 100644 --- a/include/chardev/char.h +++ b/include/chardev/char.h @@ -81,6 +81,16 @@ Chardev *qemu_chr_new_from_opts(QemuOpts *opts, void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend); /** + * @qemu_chr_parse_opts: + * + * Parse the options to the ChardevBackend struct. + * + * Returns: a new backend or NULL on error + */ +ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, + Error **errp); + +/** * @qemu_chr_new: * * Create a new character backend from a URI. diff --git a/tests/test-hmp.c b/tests/test-hmp.c index 6dfa0c36e2..d77b3c8710 100644 --- a/tests/test-hmp.c +++ b/tests/test-hmp.c @@ -23,6 +23,7 @@ static const char *hmp_cmds[] = { "boot_set ndc", "chardev-add null,id=testchardev1", "chardev-send-break testchardev2", + "chardev-change testchardev1 ringbuf", "chardev-remove testchardev1", "commit all", "cpu-add 1", |