From mboxrd@z Thu Jan  1 00:00:00 1970
From: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
Subject: Re: [PATCH 11/15] MIPS: paravirt: Add pci controller for virtio
Date: Thu, 22 May 2014 22:17:07 +0200
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Cc: <linux-mips@linux-mips.org>, David Daney <ddaney.cavm@gmail.com>,
	Ralf Baechle <ralf@linux-mips.org>, <kvm@vger.kernel.org>,
	David Daney <david.daney@cavium.com>
To: James Hogan <james.hogan@imgtec.com>
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On Wed, May 21, 2014 at 12:42:52PM +0100, James Hogan wrote:
> On 20/05/14 15:47, Andreas Herrmann wrote:
> > From: David Daney <david.daney@cavium.com>
> > 
> > Signed-off-by: David Daney <david.daney@cavium.com>
> > Signed-off-by: Andreas Herrmann <andreas.herrmann@caviumnetworks.com>
> > ---
> >  arch/mips/Kconfig                |    1 +
> >  arch/mips/paravirt/Kconfig       |    6 ++
> >  arch/mips/pci/Makefile           |    2 +-
> >  arch/mips/pci/pci-virtio-guest.c |  140 ++++++++++++++++++++++++++++++++++++++
> >  4 files changed, 148 insertions(+), 1 deletion(-)
> >  create mode 100644 arch/mips/paravirt/Kconfig
> >  create mode 100644 arch/mips/pci/pci-virtio-guest.c
> 
> If I understand correctly this just drives a simple PCI controller for a
> PCI bus that a virtio device happens to be usually plugged in to, yeh?

Yes.

> It sounds like it would make sense to take advantage of Will Deacon's
> recent efforts to make a generic pci controller driver for this sort of
> thing which specifically mentions emulation by kvmtool? Is it
> effectively the same PCI controller that is being emulated?

I think, it's very similar. But it depends on OF.
 
> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/thread.html#233491
> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/233491.html
> http://lists.infradead.org/pipermail/linux-arm-kernel/2014-February/233490.html

Currently we are at v6:
http://marc.info/?i=1399478839-3564-1-git-send-email-will.deacon@arm.com

Will take a closer look (trying to get it running for mips_paravirt).


Andreas