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David Alan Gilbert" , marcandre.lureau@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Signed-off-by: Anton Nefedov Reviewed-by: Vladimir Sementsov-Ogievskiy CC: Dr. David Alan Gilbert --- chardev/char.c | 2 +- hmp-commands.hx | 16 ++++++++++++++++ hmp.c | 34 ++++++++++++++++++++++++++++++++++ hmp.h | 1 + include/sysemu/char.h | 12 ++++++++++++ 5 files changed, 64 insertions(+), 1 deletion(-) diff --git a/chardev/char.c b/chardev/char.c index 2d6e204..1e2a2dd 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -888,7 +888,7 @@ help_string_append(const char *name, void *opaque) g_string_append_printf(str, "\n%s", 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 baeac47..19bfddd 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -1727,6 +1727,22 @@ 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 + + { .name = "chardev-remove", .args_type = "id:s", .params = "id", diff --git a/hmp.c b/hmp.c index 20f5dab..7660495 100644 --- a/hmp.c +++ b/hmp.c @@ -2224,6 +2224,40 @@ 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; diff --git a/hmp.h b/hmp.h index d8b94ce..23e035c 100644 --- a/hmp.h +++ b/hmp.h @@ -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_qemu_io(Monitor *mon, const QDict *qdict); void hmp_cpu_add(Monitor *mon, const QDict *qdict); diff --git a/include/sysemu/char.h b/include/sysemu/char.h index 342f531..18fcd26 100644 --- a/include/sysemu/char.h +++ b/include/sysemu/char.h @@ -131,6 +131,18 @@ 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. + * + * @opts + * + * Returns: a new backend + */ +ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, + Error **errp); + +/** * @qemu_chr_new: * * Create a new character backend from a URI.