Re: [PATCH v2] vfio: platform: Fix using devices in PM Domains

[Geert Uytterhoeven]

Hi Eric,

On Mon, May 28, 2018 at 4:54 PM, Auger Eric <eric.auger@xxxxxxxxxx> wrote:
> On 05/18/2018 12:55 PM, Geert Uytterhoeven wrote:
>> If a device is part of a PM Domain (e.g. power and/or clock domain), its
>> power state is managed using Runtime PM.  Without Runtime PM, the device
>> may not be powered up or clocked, causing subtle failures, crashes, or
>> system lock-ups when the device is accessed by the guest.
>>
>> Fix this by adding Runtime PM support, powering the device when the VFIO
>> device is opened by the guest.
>
> I fail to apply this on master branch?

It's against git://github.com/awilliam/linux-vfio.git#next.

>> Note that while more fine-grained power management could be implemented
>> on the guest side, if exported by the host, this would be inherently
>> unsafe, as abusing it may take down the whole system.
> I think I would prefer we get rid of the above paragraph.

OK, I will drop it. But you've been warned ;-)

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds