[vfio-users] How to hard-reset a PCI-e device?

[Taiidan at gmx.com]

On 02/15/2017 08:30 PM, Alex Williamson wrote:

> On Wed, Feb 15, 2017 at 5:53 PM,Taiidan at gmx.com  <Taiidan at gmx.com>  wrote:
>
>> This is for a server, so that isn't useful.
>>
>> I can't understand why the maintainers of vfio don't do a hard reset if
>> FLR doesn't work.
>>
> You have a graphics card that supports FLR?  An FLR doesn't return a
> status, how do we know it didn't work?  If a device has a known broken
> reset mechanism, report it and maybe we can avoid using it.  There is no
> standard way to remove power from a slot unless you have a hotplug capable
> slot.
>
I coincidentally checked the manual of my boards chipset (AMD SR5690) 
and it turns out the slots do support hotplug, does anyone know how can 
I configure this? the info I see on the internet is really vague.
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