From mboxrd@z Thu Jan  1 00:00:00 1970
From: Pasi =?iso-8859-1?Q?K=E4rkk=E4inen?= <pasik@iki.fi>
Subject: Re: qemu-xen-dir + PCI passthrough = BOOM
Date: Thu, 9 Jan 2014 17:43:38 +0200
Message-ID: <20140109154338.GD2924@reaktio.net>
References: <20131205121632.GO10855@perard.uk.xensource.com>
	<20131206144935.GA3603@pegasus.dumpdata.com>
	<20131206153503.GS10855@perard.uk.xensource.com>
	<20131206160018.GC4419@zion.uk.xensource.com>
	<20131206160310.GD4419@zion.uk.xensource.com>
	<20131216150816.GA14122@phenom.dumpdata.com>
	<20131218144823.GB6081@perard.uk.xensource.com>
	<20140108194451.GA15956@phenom.dumpdata.com>
	<20140109145624.GD1696@perard.uk.xensource.com>
	<20140109153640.GC2924@reaktio.net>
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To: Anthony PERARD <anthony.perard@citrix.com>
Cc: xen-devel@lists.xenproject.org, stefano.stabellini@citrix.com, donald.d.dugger@intel.com
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On Thu, Jan 09, 2014 at 05:36:40PM +0200, Pasi K=E4rkk=E4inen wrote:
> > > =

> > > I can boot the guest.
> > =

> > And can you access the ROM from the guest ?
> > =

> > =

> > Also, I have another patch, it will initialize the PCI ROM BAR like any
> > other BAR. In this case, if qemu is envolved in the access to ROM, it
> > will print an error, like it the case for other BAR. =

> > =

> > I tried to test it, but it was with an embedded VGA card. When I dump
> > the ROM, I got the same one as the emulated card instead of the ROM from
> > the device.
> > =

> =

> This issue has been reported multiple times on the list, and discussed du=
ring the last couple of months on another threads,
> mostly related to GPU passthru.
> =

> I think some clues were found recently about why you get the emulated rom=
 instead of the actual device rom.
> Sorry that I don't have the link available right now..
> =


Heh.. it seems it was Konrad in this very same thread :)

http://lists.xen.org/archives/html/xen-devel/2013-12/msg02837.html


-- Pasi =