Re: [PATCH 3/4] hw/openrisc/openrisc_sim; Add support for loading a decice tree

[Stafford Horne]

On Thu, Feb 10, 2022 at 12:10:54PM +0100, Philippe Mathieu-Daudé wrote:
> Typo "device" in subject.

OK.

> On 10/2/22 07:30, Stafford Horne wrote:
> > Using the device tree means that qemu can now directly tell
> > the kernel what hardware is configured rather than use having
> > to maintain and update a separate device tree file.
> > 
> > This patch adds device tree support for the OpenRISC simulator.
> > A device tree is built up based on the state of the configure
> > openrisc simulator.
> > 
> > This is then dumpt to memory and the load address is passed to the
> 
> "dumped"?

Yes.

> > kernel in register r3.
> > 
> > Signed-off-by: Stafford Horne <shorne@gmail.com>
> > ---
> >   hw/openrisc/openrisc_sim.c | 158 ++++++++++++++++++++++++++++++++++++-
> >   1 file changed, 154 insertions(+), 4 deletions(-)
> > 
> > diff --git a/hw/openrisc/openrisc_sim.c b/hw/openrisc/openrisc_sim.c
> > index 5a0cc4d27e..d7c26af82c 100644
> > --- a/hw/openrisc/openrisc_sim.c
> > +++ b/hw/openrisc/openrisc_sim.c
> > @@ -29,14 +29,20 @@
> >   #include "net/net.h"
> >   #include "hw/loader.h"
> >   #include "hw/qdev-properties.h"
> > +#include "exec/address-spaces.h"
> > +#include "sysemu/device_tree.h"
> >   #include "sysemu/sysemu.h"
> >   #include "hw/sysbus.h"
> >   #include "sysemu/qtest.h"
> >   #include "sysemu/reset.h"
> >   #include "hw/core/split-irq.h"
> > +#include <libfdt.h>
> 
> Watch out, you now need to add TARGET_NEED_FDT=y
> to configs/targets/or1k-softmmu.mak.

OK, I will add it in this patch.  I missed that part.