From: Olaf Hering <olaf@aepfle.de>
To: Tim Deegan <tim@xen.org>
Cc: xen-devel@lists.xensource.com
Subject: Re: [PATCH] [RFC]: xenpaging: add command to to flush qemu buffer cache via VMCALL
Date: Thu, 8 Mar 2012 15:42:16 +0100 [thread overview]
Message-ID: <20120308144216.GA19728@aepfle.de> (raw)
In-Reply-To: <20120308142936.GK64337@ocelot.phlegethon.org>
On Thu, Mar 08, Tim Deegan wrote:
> At 17:15 +0100 on 26 Feb (1330276512), Olaf Hering wrote:
> > # HG changeset patch
> > # User Olaf Hering <olaf@aepfle.de>
> > # Date 1330272880 -3600
> > # Node ID e17afed13a35989bdf422b75d44843bfd2fda0f4
> > # Parent 3ace34b89ebe3bdd6afb0bca85b0c1270f99c1bb
> > [RFC]: xenpaging: add command to to flush qemu buffer cache via VMCALL
> >
> > Is the approach taken in this patch ok?
>
> Can you explain a bit more about what you're trying to do?
It looked easy to "inject" a request to send a flush to ioemu in this
way. But it turned out that this approach will not work.
So both old and new qemu need a change to accept the flush command in
some way. For old qemu the xenstore approach looks best, for the new
qemu I need to dig into QMP.
Olaf
next prev parent reply other threads:[~2012-03-08 14:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-26 16:15 [PATCH] [RFC]: xenpaging: add command to to flush qemu buffer cache via VMCALL Olaf Hering
2012-03-08 14:29 ` Tim Deegan
2012-03-08 14:42 ` Olaf Hering [this message]
2012-03-08 14:51 ` Tim Deegan
2012-03-08 15:04 ` Olaf Hering
[not found] <mailman.5740.1331218937.1471.xen-devel@lists.xen.org>
2012-03-08 15:08 ` Andres Lagar-Cavilla
2012-03-08 15:17 ` Tim Deegan
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