From: Avi Kivity <avi@redhat.com>
To: Anthony Liguori <anthony@codemonkey.ws>
Cc: john cooper <john.cooper@third-harmonic.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
john cooper <john.cooper@redhat.com>,
Rusty Russell <rusty@rustcorp.com.au>,
qemu-devel@nongnu.org, Vadim Rozenfeld <vrozenfe@redhat.com>,
jens.axboe@oracle.com
Subject: [Qemu-devel] Re: [PATCH 0/2] fix virtio_blk serial pci config breakage
Date: Tue, 29 Sep 2009 18:24:47 +0200 [thread overview]
Message-ID: <4AC234CF.6030902@redhat.com> (raw)
In-Reply-To: <4AC21660.6020304@codemonkey.ws>
On 09/29/2009 04:14 PM, Anthony Liguori wrote:
> Michael S. Tsirkin wrote:
>> I don't think it's such a good idea. We want to keep exposing most of
>> config space in i/o bar because of backwards compatibility. And we want
>> to keep datapath operations such as vq kicks, in i/o space.
>
> We can do feature negotiation in virtio-pci. That lets us continue
> exposing the first 246 bytes of the config space in PIO and guests can
> negotiate a second bar for access to larger config spaces.
Shouldn't the guest's pci layer automatically adapt to what the card
throws at it?
Of course we need to keep migration compatibility so we need to keep pio.
--
error compiling committee.c: too many arguments to function
next prev parent reply other threads:[~2009-09-29 16:24 UTC|newest]
Thread overview: 59+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-09-07 18:14 [Qemu-devel] [PATCH] qemu: make virtio-blk PCI compliant by default Michael S. Tsirkin
2009-09-08 7:40 ` [Qemu-devel] " john cooper
2009-09-08 7:58 ` Michael S. Tsirkin
2009-09-21 11:09 ` Rusty Russell
2009-09-21 15:47 ` john cooper
2009-09-22 9:30 ` Avi Kivity
2009-09-22 14:21 ` john cooper
2009-09-22 14:27 ` Avi Kivity
2009-09-22 14:41 ` Michael S. Tsirkin
2009-09-22 14:45 ` Avi Kivity
2009-09-22 15:09 ` john cooper
2009-09-23 1:59 ` Anthony Liguori
2009-09-23 4:56 ` john cooper
2009-09-29 6:09 ` [Qemu-devel] [PATCH 0/2] fix virtio_blk serial pci config breakage john cooper
2009-09-29 6:58 ` [Qemu-devel] " Michael S. Tsirkin
2009-09-29 7:22 ` Avi Kivity
2009-09-29 8:54 ` Michael S. Tsirkin
2009-09-29 9:16 ` Avi Kivity
2009-09-29 13:55 ` Anthony Liguori
2009-09-29 14:06 ` Michael S. Tsirkin
2009-09-29 14:14 ` Anthony Liguori
2009-09-29 16:24 ` Avi Kivity [this message]
2009-09-29 16:30 ` Michael S. Tsirkin
2009-09-29 17:26 ` Anthony Liguori
2009-09-29 17:31 ` Michael S. Tsirkin
2009-09-29 17:28 ` Rusty Russell
2009-09-29 17:31 ` Anthony Liguori
2009-09-30 1:12 ` Rusty Russell
2009-09-30 1:22 ` Jamie Lokier
2009-10-05 15:44 ` john cooper
2009-09-29 18:44 ` john cooper
2009-09-29 20:55 ` Anthony Liguori
2009-09-30 1:19 ` Rusty Russell
2009-09-30 2:17 ` Anthony Liguori
2009-09-30 12:00 ` Rusty Russell
2009-09-30 18:04 ` Jamie Lokier
2009-10-05 15:41 ` john cooper
2009-09-30 11:47 ` Paul Brook
2009-10-05 15:40 ` john cooper
2009-09-29 13:51 ` Anthony Liguori
2009-09-29 16:22 ` Avi Kivity
2009-09-29 17:24 ` Anthony Liguori
2009-09-29 6:09 ` [Qemu-devel] [PATCH 1/2] " john cooper
2009-09-29 9:01 ` [Qemu-devel] " Michael S. Tsirkin
2009-10-05 15:47 ` [Qemu-devel] [PATCH] fix virtio_blk serial pci config breakage, v2 john cooper
2009-10-05 19:54 ` [Qemu-devel] " Michael S. Tsirkin
2009-10-07 5:49 ` john cooper
2009-10-07 13:48 ` Anthony Liguori
2009-10-07 13:52 ` Michael S. Tsirkin
2009-10-07 13:55 ` Anthony Liguori
2009-10-07 15:38 ` john cooper
2009-10-05 20:15 ` Michael S. Tsirkin
2009-10-06 14:23 ` Anthony Liguori
2009-09-29 6:10 ` [Qemu-devel] [PATCH 2/2] fix virtio_blk serial pci config breakage john cooper
2009-09-29 6:57 ` [Qemu-devel] " Michael S. Tsirkin
2009-09-29 17:14 ` Rusty Russell
2009-09-14 11:39 ` [Qemu-devel] Re: [PATCH] qemu: make virtio-blk PCI compliant by default Michael S. Tsirkin
2009-09-15 7:29 ` john cooper
2009-09-22 5:06 ` Rusty Russell
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=4AC234CF.6030902@redhat.com \
--to=avi@redhat.com \
--cc=anthony@codemonkey.ws \
--cc=jens.axboe@oracle.com \
--cc=john.cooper@redhat.com \
--cc=john.cooper@third-harmonic.com \
--cc=mst@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=rusty@rustcorp.com.au \
--cc=vrozenfe@redhat.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).