linux-kernel - Re: [PATCH v9 00/12] Add Mediated device support

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Date:   Wed, 07 Dec 2016 15:40:43 +0100
From:   Gerd Hoffmann <kraxel@...hat.com>
To:     Jike Song <jike.song@...el.com>
Cc:     Kirti Wankhede <kwankhede@...dia.com>, alex.williamson@...hat.com,
        cjia@...dia.com, pbonzini@...hat.com, qemu-devel@...gnu.org,
        kvm@...r.kernel.org, kevin.tian@...el.com,
        bjsdjshi@...ux.vnet.ibm.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v9 00/12] Add Mediated device support

  Hi,

> Will update a topic/gvt-next-kvmgt-2016-12-06 today, sorry for the
> inconvenience :)

Thanks, that brings us one step forward.

Linux guest can see the device (in lspci).  Trying to load i915.ko leads
to kernel oopses on both guest and host though.  So I guess the guest
driver can't handle the device.

I've tried RHEL-7.3, kernel 3.10.0-514.el7.x86_64.  The drivers/gpu/drm/
subsystem is roughly at upstream kernel v4.6 level.  Is that too old?
IIRC some vgpu guest patches have been merged in v4.2 timeframe, so I
kind-of expected this to work ...

I'll go try the kvmgt branch in the guest next.

What is the upstream merge status btw?  As far I know the bulk of the
gvt code is scheduled for 4.10.  What about the gvt/mdev plumbing?  Will
that land in 4.10 too or is that planned for 4.11?

thanks,
  Gerd