From: Markus Armbruster <armbru@redhat.com>
To: "Marc-André Lureau" <marcandre.lureau@redhat.com>
Cc: qemu-devel@nongnu.org, Li Zhijian <lizhijian@cn.fujitsu.com>,
Jason Wang <jasowang@redhat.com>,
Zhang Chen <zhangckid@gmail.com>,
peterx@redhat.com, "Dr. David Alan Gilbert" <dgilbert@redhat.com>,
Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [Qemu-devel] [PATCH for-4.0 v4 4/7] monitor: check if chardev can switch gcontext for OOB
Date: Thu, 06 Dec 2018 06:46:13 +0100 [thread overview]
Message-ID: <87k1knky1m.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <20181205203737.9011-5-marcandre.lureau@redhat.com> ("Marc-André Lureau"'s message of "Thu, 6 Dec 2018 00:37:34 +0400")
Marc-André Lureau <marcandre.lureau@redhat.com> writes:
> Not all backends are able to switch gcontext. Those backends cannot
> drive a OOB monitor (the monitor would then be blocking on main
> thread).
>
> For example, ringbuf, spice, or more esoteric input chardevs like
> braille or MUX.
>
> We currently forbid MUX because not all frontends are ready to run
> outside main loop. Extend to add a context-switching feature check.
>
> Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
next prev parent reply other threads:[~2018-12-06 5:46 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-05 20:37 [Qemu-devel] [PATCH for-4.0 v4 0/7] monitor: misc fixes Marc-André Lureau
2018-12-05 20:37 ` [Qemu-devel] [PATCH for-4.0 v4 1/7] monitor: inline ambiguous helper functions Marc-André Lureau
2018-12-05 20:37 ` [Qemu-devel] [PATCH for-4.0 v4 2/7] monitor: accept chardev input from iothread Marc-André Lureau
2018-12-05 20:37 ` [Qemu-devel] [PATCH for-4.0 v4 3/7] char: add a QEMU_CHAR_FEATURE_GCONTEXT flag Marc-André Lureau
2018-12-06 5:45 ` Markus Armbruster
2018-12-05 20:37 ` [Qemu-devel] [PATCH for-4.0 v4 4/7] monitor: check if chardev can switch gcontext for OOB Marc-André Lureau
2018-12-06 5:46 ` Markus Armbruster [this message]
2018-12-06 6:08 ` Markus Armbruster
2018-12-06 6:23 ` Marc-André Lureau
2018-12-06 9:13 ` Markus Armbruster
2018-12-06 9:24 ` Marc-André Lureau
2018-12-06 9:38 ` Markus Armbruster
2018-12-06 9:55 ` Marc-André Lureau
2018-12-06 12:58 ` Markus Armbruster
2018-12-05 20:37 ` [Qemu-devel] [PATCH for-4.0 v4 5/7] colo: check chardev can switch context Marc-André Lureau
2018-12-06 5:48 ` Markus Armbruster
2018-12-06 5:56 ` Li Zhijian
2018-12-06 6:23 ` Zhang Chen
2018-12-05 20:37 ` [Qemu-devel] [PATCH for-4.0 v4 6/7] monitor: prevent inserting new monitors after cleanup Marc-André Lureau
2018-12-05 20:37 ` [Qemu-devel] [PATCH for-4.0 v4 7/7] monitor: avoid potential dead-lock when cleaning up Marc-André Lureau
2018-12-06 13:08 ` [Qemu-devel] [PATCH for-4.0 v4 0/7] monitor: misc fixes Markus Armbruster
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