From mboxrd@z Thu Jan 1 00:00:00 1970 From: Keir Fraser Subject: Re: [PATCH] Make new PCI device probe work with older hypervisors Date: Mon, 07 Jul 2008 16:07:15 +0100 Message-ID: References: <18546.12412.746127.288817@gargle.gargle.HOWL> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <18546.12412.746127.288817@gargle.gargle.HOWL> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Espen Skoglund Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 7/7/08 16:04, "Espen Skoglund" wrote: >> If old dom0 kernels will not work with new Xen on any system >> supporting VT-d, even when VT-d features are not going to be used >> (e.g., for device passthrough), then that's not really acceptable. > >> If you have to upgrade your dom0 kernel to make use of new features >> which VT-d enables, that's perfectly acceptable. > > Ok. In that case you'd better revert 17975:a3e4840b1584 and make sure > that the PCI device enumration is never taken out of Xen. If we revert just that one changeset, will the other patches (including the new hypercalls) still work okay? -- Keir