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Re: [Qemu-devel] virtio-pci msix error

From: Peter Maydell
Subject: Re: [Qemu-devel] virtio-pci msix error
Date: Tue, 19 May 2015 21:11:26 +0100

On 19 May 2015 at 20:16, Michael S. Tsirkin <address@hidden> 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

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