From: "Richard W.M. Jones" <rjones@redhat.com>
To: Jaspal <jaspal.iiith@gmail.com>
Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org
Subject: Re: [Qemu-devel] Memory Tracking API
Date: Thu, 17 May 2012 19:47:44 +0100 [thread overview]
Message-ID: <20120517184744.GA4377@amd.home.annexia.org> (raw)
In-Reply-To: <4FB53E20.40600@gmail.com>
On Thu, May 17, 2012 at 11:36:24PM +0530, Jaspal wrote:
> Hi ,
>
> Is it possible to keep a count of reads / writes taking place in a
> vm using qemu ( using kvm as hypervisor ) ? Is there a api ( or any
> patch ) for it ?
Memory reads and writes is surely going to generate a huge
amount of output!
There are various DEBUG_* symbols at the top of exec.c and ioport.c.
I've only used a few of these:
DEBUG_UNASSIGNED - prints a message when an unmapped page is
referenced (TCG only, presumably?)
DEBUG_IOPORT - prints a message when any I/O port is referenced
DEBUG_UNUSED_IOPORT - prints a message when a non-emulated I/O port
is referenced
There are several more if you look at the code.
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
New in Fedora 11: Fedora Windows cross-compiler. Compile Windows
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next prev parent reply other threads:[~2012-05-17 18:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-05-17 18:06 [Qemu-devel] Memory Tracking API Jaspal
2012-05-17 18:47 ` Richard W.M. Jones [this message]
2012-05-21 3:28 ` Jaspal
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