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From: Daniel Smith <dpsmith.dev@gmail.com>
To: Juergen Gross <jgross@suse.com>
Cc: xen-devel@lists.xenproject.org
Subject: Re: [Xen-devel] Running xenstored in Linux stubdom
Date: Wed, 4 Sep 2019 13:26:29 -0400	[thread overview]
Message-ID: <CADAP9AVJqfBGNBQVE-4ztA7Tjdwf0Y9GC-P=jwkx8sTM98BzVw@mail.gmail.com> (raw)
In-Reply-To: <2e2293bc-4187-3fe8-52d6-96f709ae4c3c@suse.com>

On Wed, Sep 4, 2019 at 12:12 PM Juergen Gross <jgross@suse.com> wrote:
>
> The stubdom gets an event channel to use for dom0 xenbstore connection
> via commandline parameter ("--event <event-nr>"). This needs to be used
> in the stubdom for setting up the communication path.
>
>
> Juergen

Hi Juergen,

Thanks for the quick response! tracing through xenstored, looks like
that flag sets the variable dom0_event which is only used in the
xenstored_minios.c as the return value to the xenbus_evtchn() call. I
could naively short circuit xenbus_evtchn() under xenstored_posix.c to
return immediately if dom0_event has been set. If that works, I would
be glad to submit it back upstream if there is interest in
incorporating it.

Thanks again!
Daniel P. Smith

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  reply	other threads:[~2019-09-04 17:26 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-04 15:45 [Xen-devel] Running xenstored in Linux stubdom Daniel Smith
2019-09-04 16:12 ` Juergen Gross
2019-09-04 17:26   ` Daniel Smith [this message]
2019-09-06 18:01     ` Daniel Smith
2019-09-09  9:08       ` Juergen Gross

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