From mboxrd@z Thu Jan  1 00:00:00 1970
From: Hollis Blanchard <hollisb@us.ibm.com>
Date: Thu, 11 Dec 2008 23:08:44 +0000
Subject: Re: [Qemu-devel] [PATCH 6/6] IBM PowerPC 440EP Bamboo reference
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To: qemu-devel@nongnu.org
Cc: kvm-ppc@vger.kernel.org

On Thu, 2008-12-11 at 15:39 -0600, Anthony Liguori wrote:
> Hollis Blanchard wrote:
> > +
> > +#define BINARY_DEVICE_TREE_FILE "bamboo.dtb"
> > +
> > +static void *bamboo_load_device_tree(void *addr,
> > +                                     uint32_t ramsize,
> > +                                     target_phys_addr_t initrd_base,
> > +                                     target_phys_addr_t initrd_size,
> > +                                     const char *kernel_cmdline)
> > +{
> > +    void *fdt = NULL;
> > +#ifdef HAVE_FDT
> >   
> 
> Is this at all usable without libfdt?  If not, just don't compile this 
> board in unless libfdt is present.

In practice, we've only tested with the -kernel option, which does
require libfdt.

However, in theory there is nothing that precludes running a firmware
(such as u-boot) inside the KVM guest. Jean-Christophe is working on
improving the ppc4xx device emulation so that becomes possible in the
future.

-- 
Hollis Blanchard
IBM Linux Technology Center