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SubjectRe: [PATCH for-2.6.35] virtio-pci: disable msi at startup
On 06/23/2010 04:59 PM, Michael S. Tsirkin wrote:
>
>> Why doesn't a device reset result in msi being cleared?
>>
> This is not a standard function reset. This is virtio specific
> command. So it only clears virtio registers.
>

I see. We should implement FLR in qemu. If we don't already do so, we
should probably FLR anything that moves when a kexec kernel starts.

>> Shouldn't a reset be equivalent to power cycling?
>>
> If we did this, driver would need to restore registers
> such as BAR etc.
>

We could save/restore the registers we care about.

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



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