From: Anthony Liguori <anthony@codemonkey.ws>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: john cooper <john.cooper@redhat.com>,
Marc Haber <mh+qemu-devel@zugschlus.de>,
qemu-devel@nongnu.org
Subject: [Qemu-devel] Re: virtio block device and sysfs
Date: Mon, 22 Mar 2010 09:52:17 -0500 [thread overview]
Message-ID: <4BA78421.2010200@codemonkey.ws> (raw)
In-Reply-To: <20100322144654.GA19414@redhat.com>
On 03/22/2010 09:46 AM, Michael S. Tsirkin wrote:
> On Tue, Mar 09, 2010 at 03:34:07PM -0600, Anthony Liguori wrote:
>
>> John attempted this and it was reverted because the implementation
>> exhausted the PCI config space.
>>
> Not config space really, John's implementation put ATA_IDENTITY
> (512 bytes) in PCI IO memory, PCI spec limits each such BAR to 256 bytes.
>
Yes, I should know better than to be sloppy with my words on this :-)
I meant, it exhausted the virtio pci config space which is limited by
the maximum size of PCI IO memory. In theory, virtio has no config
space limitation but virtio pci does.
Regards,
Anthony Liguori
next prev parent reply other threads:[~2010-03-22 14:52 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-03-06 22:42 [Qemu-devel] virtio block device and sysfs Marc Haber
2010-03-09 1:17 ` jvrao
2010-03-09 8:21 ` Marc Haber
2010-03-09 20:04 ` jvrao
2010-03-09 20:06 ` jvrao
2010-03-09 21:15 ` Marc Haber
2010-03-09 21:34 ` Anthony Liguori
2010-03-21 16:16 ` Jamie Lokier
2010-03-22 6:26 ` john cooper
2010-03-22 12:42 ` Marc Haber
2010-03-22 14:59 ` john cooper
2010-03-25 5:30 ` john cooper
2010-06-29 18:15 ` Marc Haber
2010-06-29 18:03 ` john cooper
2010-06-29 20:20 ` Marc Haber
2010-06-29 18:33 ` Ryan Harper
2010-06-29 18:36 ` Marc Haber
2010-06-29 18:36 ` Marc Haber
2010-06-30 7:01 ` Markus Armbruster
2010-09-13 8:55 ` Marc Haber
2010-09-13 14:34 ` Ryan Harper
2010-09-14 7:43 ` Marc Haber
2011-03-10 12:14 ` Marc Haber
2010-03-22 12:38 ` Marc Haber
2010-03-22 14:22 ` john cooper
2010-03-22 16:24 ` Jamie Lokier
2010-03-22 16:33 ` john cooper
2010-04-22 20:30 ` Marc Haber
2010-04-22 20:48 ` john cooper
2010-03-22 15:14 ` Paul Brook
2010-04-22 20:33 ` Marc Haber
2010-03-22 14:46 ` [Qemu-devel] " Michael S. Tsirkin
2010-03-22 14:52 ` Anthony Liguori [this message]
2010-03-20 18:32 ` [Qemu-devel] " Richard W.M. Jones
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