Re: [Xen-devel] Upstream qemu not working with latest Xen staging unstable

[Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>]

On Fri, 17 Jun 2011, Anthony PERARD wrote:
> On Fri, Jun 17, 2011 at 03:21, Wei Liu <liuw@xxxxxxxxx> wrote:
> > Hi, all
> 
> Hi,
> 
> > This problem has been brought up once by Daniel Castro.
> >
> > http://marc.info/?l=xen-devel&m=130795535706323&w=2
> >
> > But he didn't post the complete log.
> >
> > Now I'm able to reproduce this problem. I have my qemu log below.
> >
> > I think this is a Xen problem. I use Anthony's candidate/xenpv-support
> > branch and test with several Xen reversions.
> >
> > Xen staging unstable r23546, fail
> > Xen staging unstable r23475 (I want to work with IanJ's libxl patch,
> > that's why I choose this reversion), fail
> > Xen unstable r23369, succeed
> >
> > This is not a thorough regression test though. FYI.
> >
> > Wei.
> >
> > -----qemu log-----
> > char device redirected to /dev/pts/1
> > Warning: more nics requested than this machine supports; some have been
> > ignored
> > VNC server running on `127.0.0.1:5900'
> > qemu: hardware error: register_ioport_write: invalid opaque for address
> > 0xc000
> > CPU #0:
> > EAX=00000000 EBX=00000000 ECX=00000000 EDX=00000633
> > ESI=00000000 EDI=00000000 EBP=00000000 ESP=00000000
> > EIP=0000fff0 EFL=00000002 [-------] CPL=0 II=0 A20=1 SMM=0 HLT=1
> [...]
> 
> So, the branch candidate/xenpv-support is a little bit old. I did not
> update this branch since a while.
> 
> But if you just want to run HVM guest, you could use "my" branch
> "xen-next", as it will be merge (soon I hope) in qemu-uptream.
> 
> If you need the patches in candidates/xenpv-support, eithier merge it
> or cherry-pick the patch ;).

We are in the process of setting up a properly maintained qemu xen
branch, so that we don't loose any of the qemu patches we are working on
and sending to the lists.
Hopefully it will also help everybody that is trying to setup the new
qemu on xen.

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