Re: [virtio-comment] [PATCH v3 1/1] Define a low power mode for devices

[Jason Wang <jasowang@redhat.com>]

On Mon, Dec 4, 2023 at 5:41âPM David Stevens <stevensd@chromium.org> wrote:
>
> Define a low power mode for virtio devices where the devices are
> expected to maintain their state. This gives drivers an option for power
> management besides simply resetting their device. In the virtualization
> use case, this allows the guest to be suspended even with stateful
> virtio devices like gpu and fs.
>
> Low power mode is primarily defined at the transport layer. The only
> part that depends on device-type specific details is whether a given
> virtqueue is device driven or driver driven.
>
> This change only defines the transport-specific implementation for
> Virtio over PCI.

A dumb question, if this is only for PCI, can the device just
implement no_soft_reset via PMC?

Thanks