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From: Peter Maydell <peter.maydell@linaro.org>
To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Fam Zheng <famz@redhat.com>, qemu-devel <qemu-devel@nongnu.org>,
	Richard Henderson <rth@twiddle.net>
Subject: Re: [Qemu-devel] virtio-pci msix error
Date: Tue, 19 May 2015 21:11:26 +0100	[thread overview]
Message-ID: <CAFEAcA8Up48WkbgNdyyXQKJQhJj=G-NHde8fwKwsdSTPpxEkRg@mail.gmail.com> (raw)
In-Reply-To: <20150519181735-mutt-send-email-mst@redhat.com>

On 19 May 2015 at 20:16, Michael S. Tsirkin <mst@redhat.com> wrote:
> On Tue, May 19, 2015 at 08:54:36AM -0700, Richard Henderson wrote:
>> Re patch c7ff5482.  What's the point of this error?
>> It's going to always appear for older targets that
>> predate such new fangled things as msix.
>>
>> Obviously the patch has been there a while, and it's
>> not actually causing any problems, but today it got
>> on my nerves...

> So don't specify nvectors > 0 for these platforms then?

How do you do that? I did a quick 'git grep' for nvectors
and none of the hits are in platform-dependent code...

Why can't the virtio-pci device automatically detect
whether the PCI bus it's plugged into supports MSIx
and just do the right thing?

-- PMM

  reply	other threads:[~2015-05-19 20:11 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-19 15:54 [Qemu-devel] virtio-pci msix error Richard Henderson
2015-05-19 19:16 ` Michael S. Tsirkin
2015-05-19 20:11   ` Peter Maydell [this message]
2015-05-19 20:29     ` [Qemu-devel] [PATCH] virtio: Notice when the system doesn't support MSIx at all Richard Henderson
2015-05-20  9:59       ` Michael S. Tsirkin
2015-05-20 15:10         ` Richard Henderson
2015-05-21 18:51           ` Mark Cave-Ayland
2015-07-03  8:22       ` Mark Cave-Ayland
2015-07-06 10:38         ` Peter Maydell
2015-09-27 14:40           ` Peter Maydell
2015-10-26  9:44             ` Mark Cave-Ayland
2015-10-26 10:03               ` Michael S. Tsirkin
2015-10-26 10:09                 ` Mark Cave-Ayland
2015-10-26 10:14                   ` Peter Maydell
2015-10-26 10:29                     ` Michael S. Tsirkin
2015-10-26 10:47                     ` Mark Cave-Ayland
2015-10-26 11:08                       ` Michael S. Tsirkin
2015-05-20  9:58     ` [Qemu-devel] virtio-pci msix error Michael S. Tsirkin
2015-05-20 10:41       ` Peter Maydell
2015-05-20 11:55         ` Fam Zheng
2015-05-20 12:10           ` Peter Maydell
2015-06-13 15:06             ` Mark Cave-Ayland
2015-07-03  8:13               ` Mark Cave-Ayland
2015-07-03  8:16                 ` Peter Maydell
2015-07-03  8:19                   ` Mark Cave-Ayland

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