From: Gleb Natapov <gleb@qumranet.com>
To: qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH, RFC] Configuration device: add write channel, mark pages RO
Date: Mon, 8 Sep 2008 09:05:29 +0300 [thread overview]
Message-ID: <20080908060529.GB5924@minantech.com> (raw)
In-Reply-To: <f43fc5580809071156k37f4c5edw98bba0ce76ea3430@mail.gmail.com>
On Sun, Sep 07, 2008 at 09:56:56PM +0300, Blue Swirl wrote:
> Hi,
>
> The first patch extend the configuration device with a guest write
> capability. A callback is invoked when the buffer is full.
>
Looks useful. VMware back door allows for two way communication too.
> It's a bit odd to get completely different behavior when doing I/O to
> the same port just because of the word size used in the IO. I'd rather
> have two ports, one for control write or status read and another for
> data read/write. Is two ports too much to ask on a PC?
Lets use two ports for clarity.
--
Gleb.
prev parent reply other threads:[~2008-09-08 6:05 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-09-07 18:56 [Qemu-devel] [PATCH, RFC] Configuration device: add write channel, mark pages RO Blue Swirl
2008-09-08 6:05 ` Gleb Natapov [this message]
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