[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] pciback/front in Fedora 10 domU: should this work?
On Sun, Dec 21, 2008 at 02:25:39PM +0800, John Morris wrote: > Todd, > > >>Is pcifront perhaps disabled in the stock Fedora 10 kernel? What can I > >>check to get more information? > >> > > > >Compare the kernel configs for the Fedora and Centos domUs > > A little investigation shows that the CentOS 2.6.18 kernel RPM has a > separate patch that adds Xen capability, as well as a config option > CONFIG_XEN_PCIDEV_FRONTEND. > > The Fedora 2.6.27 kernel, however, is the new paravirt_ops kernel that > doesn't need a separate Xen patch (if I understand correctly). However, > the Xen-related config options in this kernel are much more limited, and > there is nothing about passing PCI devices. > > >>Back to the original goal, is anyone aware of a quick way to get a domU up > >>and running with a >=2.6.25 kernel (with the new wireless architecture) > >>that > >>has pcifront functionality? > >> > > > >Have you tried enabling the Xen options, in a kernel.org kernel? > >You can base your config on the fedora10 domU's kernel even. > > I haven't tried this yet, and may do so for a proof-of-concept. > However, I forgot to state another condition, the final solution needs > to be in RPM form. > > One more relevant fact: the latest Xen-ified kernel source on xen.org > is a 2.6.18 kernel. > > What this is all starting to look like is, the last Xen kernel that > supported pcifront was the last one with the separate Xen patch, that > is, 2.6.18. Xen-capable kernels after this seem to be the new pvops > kernels which don't have pcifront capability. Since the new wireless > architecture was only released in more recent kernels, it looks like I > won't be able to achieve this goal. Does this sound right? I'd be very > happy if anyone would show me I'm wrong. ;) > pv_ops Xen support in upstream/vanilla Linux kernels is a work in progress.. currently dom0 support is being worked on and it should be included in upcoming Linux 2.6.29. See: http://wiki.xensource.com/xenwiki/XenParavirtOps There's also a temporary 'stop-gap' Linux 2.6.27 based tree, with the Xenlinux patches from Novell/SLES (forward-ported from Xensource Xenlinux 2.6.18). http://xenbits.xensource.com/ext/linux-2.6.27-xen.hg That temporary 2.6.27 tree should have 'all' the features.. http://www.nabble.com/Linux-2.6.27-temporary-tree-on-xenbits-td20620606.html -- Pasi _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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