I installed Xen 3.0.2-testing on a dell with "vt" support using red hat as the base. VT support is required for HVM domains where you can install Windows OS. I had to disable USB on all the dells running linux because of IRQ contention. I also had to boot with noirqbalance in the kernel command line. Other than that, Xen with a WinXP domain worked good (besides having no sound).
>Date: Thu, 14 Sep 2006 13:00:00 +0200
>From: Martin Polehla <polous@xxxxxxxxxxx>
>Subject: Re: [Xen-users] DELL PowerEdge 2850 - no CPU vme support
>Content-Type: text/plain; charset=US-ASCII
>I were looking for some informations about XEN on dell site, but I didn't found anythink usefull.
>I found that dell poweredge 2850 passed tests, and also ouput from xen test cd looks good (all tests OK, kernel on xen test >CD says vme support (/proc/cpuinfo) etc.
>I was progessing as dell howto saying, but no succes :-(
>Have anyone xen with virtual windowsXP guest under linux xine host running ?
>any suggesntions ?
>On Mon, 28 Aug 2006 10:13:39 +0200
>Ivan Porro <pivan@xxxxxxxxxxxxx> wrote:
> Have a look to this article I've spotted time ago.. maybe you can go
> back to people who
> wrote the article (ok, I know they used RedHat, but...)
> Hope this help
> Martin Polehla wrote:
> > Hello,
> > I'm trying to get working xen on dell poweredge 2850 with two Intel(R)
> > Xeon(TM) CPU 2.80GHz using gentoo amd64 distribution settings.
> > When boot with gentoo sources 2.6.16-genoo-r13 or gentoo kernel sources
> > 2.6.17, cat /proc/cpuinfo show me:
> > flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge
> > mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall
> > nx lm constant_tsc pni monitor ds_cpl cid cx16 xtpr
> > But with xen kernel (I've tried install xen according to
> > http://gentoo-wiki.com/HOWTO_Xen_and_Gentoo) it didn't show vme support.
> > I copied .config from my gentoo sources (where vme works) to xen sources
> > and configure xen support in kernel. But it did't help. I cannot see any
> > VM messages in xm dmesg and so.
> > After it I read instructions on xen web site and I used xen tgz file
> > from official download, but with same result.
> > Always when I tried create WinXP host it return an error. I found on
> > this list that error means vme is not supported by cpu. :-( But I cannot
> > get vme working with xen kernels.
> > Please, can anyone help me make it working properly ?
> > Thanks a lot for support
> > Martin Polehla
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