From: Markus Armbruster <armbru@redhat.com>
To: Paolo Bonzini <pbonzini@redhat.com>
Cc: Stefan Hajnoczi <stefanha@gmail.com>,
qemu-devel@nongnu.org, Maxim Levitsky <mlevitsk@redhat.com>
Subject: Re: Question about scsi device hotplug (e.g scsi-hd)
Date: Thu, 02 Apr 2020 07:37:35 +0200 [thread overview]
Message-ID: <87zhbubg80.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <4bc42bf2-939f-f6c4-ea45-0d08eb42fc2b@redhat.com> (Paolo Bonzini's message of "Wed, 1 Apr 2020 18:36:46 +0200")
Paolo Bonzini <pbonzini@redhat.com> writes:
> On 01/04/20 17:09, Stefan Hajnoczi wrote:
>>> What do you think about it?
>>
>> Maybe aio_disable_external() is needed to postpone device emulation
>> until after realize has finished?
>>
>> Virtqueue kick ioeventfds are marked "external" and won't be processed
>> while external events are disabled. See also
>> virtio_queue_aio_set_host_notifier_handler() ->
>> aio_set_event_notifier().
>
> Yes, I think Stefan is right.
Is this issue limited to SCSI devices?
next prev parent reply other threads:[~2020-04-02 5:38 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-31 16:16 Question about scsi device hotplug (e.g scsi-hd) Maxim Levitsky
2020-04-01 15:09 ` Stefan Hajnoczi
2020-04-01 16:36 ` Paolo Bonzini
2020-04-02 5:37 ` Markus Armbruster [this message]
2020-04-02 8:49 ` Paolo Bonzini
2020-04-02 8:46 ` Maxim Levitsky
2020-04-03 12:41 ` Stefan Hajnoczi
2020-04-03 13:45 ` Markus Armbruster
2020-04-03 13:51 ` Paolo Bonzini
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