On Tue, Dec 5, 2023 at 1:18 PM Jason Wang <jasow...@redhat.com> wrote: > > On Mon, Dec 4, 2023 at 5:41 PM David Stevens <steve...@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?
This is basically No_Soft_Reset, yes. If a change similar to [1] would be acceptable based only on the No_Soft_Reset bit even with no concept of power management in the virtio spec, then I personally don't have any problems with that. [1] https://lore.kernel.org/lkml/20231113055138.117392-1-steve...@chromium.org/ -David --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org
