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From: Avi Kivity <avi@redhat.com>
To: Jan Kiszka <jan.kiszka@siemens.com>
Cc: "Prasad Joshi" <prasadjoshi124@gmail.com>,
	"Alex Williamson" <alex.williamson@redhat.com>,
	"André Weidemann" <Andre.Weidemann@web.de>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"Oswaldo Cadenas" <oswaldo.cadenas@gmail.com>,
	"Maxim Nikolaev" <maxim.nikolaev@siemens.com>
Subject: Re: Graphics pass-through
Date: Wed, 11 May 2011 14:23:51 +0300	[thread overview]
Message-ID: <4DCA71C7.4070502@redhat.com> (raw)
In-Reply-To: <4DC807E3.4080706@siemens.com>

On 05/09/2011 06:27 PM, Jan Kiszka wrote:
> To avoid having to deal with legacy I/O forwarding, we started with a
> dual adapter setup in the hope to leave the primary guest adapter at
> know-to-work cirrus-vga. But already in a native setup with on-board
> primary + NVIDIA secondary, the NVIDIA Windows drivers refused to talk
> to its hardware in this constellation.

IIRC one issue with nvidia is that it uses non-BAR registers to move its 
PCI BAR around, which causes cpu writes to hit empty space.

One way to see if this is the problem is to trace mmio that misses both 
kvm internal devices and qemu devices.

-- 
error compiling committee.c: too many arguments to function


  parent reply	other threads:[~2011-05-11 16:17 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <AANLkTikNHRcDquYOL3NhsxkkBYcE48nMyu4+t8t=19e7@mail.gmail.com>
2011-01-25 23:03 ` Fwd: Graphics pass-through Prasad Joshi
2011-01-26  5:12   ` Alex Williamson
2011-01-26  8:17     ` Gerd Hoffmann
2011-01-27 11:56     ` André Weidemann
2011-01-28  0:45       ` Alex Williamson
2011-01-28 17:29         ` André Weidemann
2011-01-28 16:25           ` Alex Williamson
2011-05-05  8:50         ` Jan Kiszka
2011-05-05 15:17           ` Alex Williamson
2011-05-09 11:14             ` Jan Kiszka
2011-05-09 14:29               ` Alex Williamson
2011-05-09 15:02                 ` Jan Kiszka
2011-05-09 14:55               ` Prasad Joshi
2011-05-09 15:27                 ` Jan Kiszka
2011-05-09 15:40                   ` Prasad Joshi
2011-05-09 15:48                   ` Alex Williamson
2011-05-09 16:00                     ` Jan Kiszka
2011-05-11 11:25                     ` Avi Kivity
2011-05-11 13:08                       ` Jan Kiszka
2011-05-11 13:26                         ` Avi Kivity
2011-05-11 13:50                           ` Jan Kiszka
2011-05-11 13:54                             ` Avi Kivity
2011-05-11 14:06                               ` Jan Kiszka
2011-05-11 14:14                                 ` Avi Kivity
2011-05-11 11:23                   ` Avi Kivity [this message]
2011-05-11 12:31                     ` Jan Kiszka
2011-05-10 10:53                 ` Gerd Hoffmann

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