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Re: [Qemu-devel] [PATCH] PING - add 1394 support


From: Thomas Huth
Subject: Re: [Qemu-devel] [PATCH] PING - add 1394 support
Date: Wed, 15 Apr 2015 11:14:01 +0200

Am Tue, 7 Apr 2015 11:18:41 +0300
schrieb Itamar Tal <address@hidden>:

> Hi,
> 
> Haven't got any response to this patch and couldn't find relevant
> maintainer as well. Can anyone direct me to the right guy?
> 
> Thanks,
> 
> Itamar Tal,
> Guardicore
> 
> On Mon, Mar 23, 2015 at 6:07 PM, Itamar Tal <address@hidden> wrote:
> 
> > From 9c4425d4145ac6b0a2d19a6fdf5803dd13f1fa93 Mon Sep 17 00:00:00 2001
> > From: Itamar Tal <address@hidden>
> > Date: Mon, 23 Mar 2015 14:26:47 +0200
> > Subject: [PATCH] add 1394 support
> >
> > This patch add 1394 (firewire) support to x86_64 and i386 qemu
> > softmmu. It allows one virtual machine to be the server side and the
> > other to be the client side, connected by TCP stream socket (same
> > thing is possible using serial port). This is very useful in for
> > allowing legacy devices to communicate over the firewire channel, but
> > doesn't support USB communication. Especially, it's useful for remote
> > Windows kernel debugging over qemu for malware analysis and so on...
> > The patch was tested on major stable version 2.0.0, 2.2.1 and current
> > master (2.3.0rc?).
> >
> > Itamar Tal,
> > Guardicore
> >
> > ---
> >  hw/1394/Makefile.objs |    7 +
> >  hw/1394/hcd-ohci.c    | 1645
> > +++++++++++++++++++++++++++++++++++++++++++++++++
> >  hw/1394/hcd-ohci.h    |  147 +++++
> >  hw/Makefile.objs      |    1 +
> >  4 files changed, 1800 insertions(+)
> >  create mode 100644 hw/1394/Makefile.objs
> >  create mode 100644 hw/1394/hcd-ohci.c
> >  create mode 100644 hw/1394/hcd-ohci.h
> >
> > diff --git a/hw/1394/Makefile.objs b/hw/1394/Makefile.objs
> > new file mode 100644
> > index 0000000..6c039e6
> > --- /dev/null
> > +++ b/hw/1394/Makefile.objs
> > @@ -0,0 +1,7 @@
> > +ifeq ($(TARGET_X86_64),y)
> > +common-obj-y += hcd-ohci.o
> > +else
> > +ifeq ($(TARGET_I386),y)
> > +common-obj-y += hcd-ohci.o
> > +endif
> > +endif

That's quite a cumbersome way of adding a new bus controller -
especially since firewire could be useful for other architectures, too.
Could you maybe rather add a proper CONFIG_1394_OHCI (or something
similar) option to default-configs/x86_64-softmmu.mak and
i386-softmmu.mak instead and then simply do a
 common-obj-$(CONFIG_1394_OHCI) += hcd-ohci.o
here?

 Thomas



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