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Re: [Xen-devel] Buffered IO for IO?

from [Keir Fraser] [Permanent Link][Original]
To: "Zulauf, John" <john.zulauf@xxxxxxxxx>, <xen-devel@xxxxxxxxxxxxxxxxxxx>
Subject: Re: [Xen-devel] Buffered IO for IO?
From: Keir Fraser <keir@xxxxxxxxxxxxx>
Date: Sat, 21 Jul 2007 10:44:35 +0100
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On 20/7/07 22:33, "Zulauf, John" <john.zulauf@xxxxxxxxx> wrote:

> Has anyone experimented with adding Buffered IO support for "out"
> instructions?  Currently, the buffered io pages is only used for mmio
> writes (and then only to vga space).  It seems quite straight-forward to
> add.

Is it safe to buffer, and hence arbitrarily delay, any I/O port write?

 -- Keir


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