Re: [Qemu-devel] [Xen-devel] [PATCH v4] igd-passthrough-i440FX: convert to realize()

[Gerd Hoffmann]

On Di, 2016-01-12 at 09:50 +0000, Hao, Xudong wrote:
> With latest qemu 7b8a354d4716, RHEL7.2 (with default kernel) VM still can't 
> boot up with IGD.

There is another bug, using pci_default_write_config() doesn't fly as
this checks writes against wmask and the registers in question are not
whitelisted ...

I've just rebased my igd patch series which (among other stuff) fixes
that bug:
  https://www.kraxel.org/cgit/qemu/log/?h=work/igd
  git://git.kraxel.org/qemu work/igd

Can you give it a spin?

Also: what does "can't boot up" mean exactly?  Guest doesn't boot at
all?  Guest boots, but igd/console/Xorg doesn't work?  In case of the
latter:  Any chance to login via network and get a kernel log?

thanks,
  Gerd