From mboxrd@z Thu Jan  1 00:00:00 1970
From: Olaf Hering <olaf@aepfle.de>
Subject: Re: [PATCH] [RFC]: xenpaging: add command to to flush
 qemu buffer cache via VMCALL
Date: Thu, 8 Mar 2012 16:04:16 +0100
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On Thu, Mar 08, Tim Deegan wrote:

> How synchronous to you need the flush to be, btw?  If you need to be
> sure it's completed then you probably can't go through the hypervisor.

This event is async, just a one-shot signal to kindly ask ioemu to flush
its buffers.

If you see a way to inject this sort of request from dom0, that would be
great.

Olaf