From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: Buffered IO for IO? Date: Sat, 21 Jul 2007 10:44:35 +0100 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: "Zulauf, John" , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 20/7/07 22:33, "Zulauf, John" 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