From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Michael S. Tsirkin" Subject: Re: vhost_net_init returned -7 Date: Sun, 30 Aug 2009 08:12:37 +0300 Message-ID: <20090830051237.GA31789@redhat.com> References: <200908281510.43523.iggy@theiggy.com> <20090829210123.GE31449@redhat.com> <671C7DCF-70FD-4247-9426-1D782896C2B2@theiggy.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: "kvm@vger.kernel.org" To: Brian Jackson Return-path: Received: from mx1.redhat.com ([209.132.183.28]:58775 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750796AbZH3FOG (ORCPT ); Sun, 30 Aug 2009 01:14:06 -0400 Content-Disposition: inline In-Reply-To: <671C7DCF-70FD-4247-9426-1D782896C2B2@theiggy.com> Sender: kvm-owner@vger.kernel.org List-ID: On Sat, Aug 29, 2009 at 04:38:25PM -0500, Brian Jackson wrote: > I'm guessing that's not something the windows virtio drivers support > yet. Do you plan on adding support for guests without msi or am I stuck > waiting for the windows drivers to add support for msi? > I do want to support non-MSI. Host kernel KVM will have to be extended for this, though. > > On Aug 29, 2009, at 4:01 PM, "Michael S. Tsirkin" > wrote: > >> On Fri, Aug 28, 2009 at 03:10:43PM -0500, Brian Jackson wrote: >>> I'm trying to tinker with vhost_net. I have a 2.6.31-rc4 host kernel >>> patched >>> to support vhost_net (v5) (along with ksm if it matters). The guest >>> is a >>> debian-5.0.2 (2.6.26) install CD for now. When the guest tries to >>> load the >>> virtio-net drivers, kvm closes and prints "vhost_net_init returned >>> -7". KVM is >>> patched with your patches from 20090817. >>> >>> I tried looking through the code but without adding some other debug >>> code, >>> it's not obvious where exactly it's failing. Was going to see if >>> anyone (I >>> know, not a lot of users yet) had any ideas before I dig too deep. >>> >>> --Iggy >> >> Something I forgot to mention is that userspace I posted currently >> rely on >> guest MSI support which requires guest v2.6.31 (any rc will do). You >> don't need >> kvm.git in guest though: kernel.org kernels should work ok. >> >> -- >> MST >> -- >> To unsubscribe from this list: send the line "unsubscribe kvm" in >> the body of a message to majordomo@vger.kernel.org >> More majordomo info at http://vger.kernel.org/majordomo-info.html