Re: [PATCH for-2.6.35] virtio-pci: disable msi at startup

[Avi Kivity]

On 06/10/2010 06:22 PM, Michael S. Tsirkin wrote:
> virtio-pci resets the device at startup by writing to the status
> register, but this does not clear the pci config space,
> specifically msi enable status which affects register
> layout.
>
> This breaks things like kdump when they try to use e.g. virtio-blk.
>
> Fix by forcing msi off at startup. Since pci.c already has
> a routine to do this, we export and use it instead of duplicating code.
>
>    

Why doesn't a device reset result in msi being cleared?

Shouldn't a reset be equivalent to power cycling?

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

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