Re: [RFC PATCH] virtio_balloon: add VIRTIO_BALLOON_F_REPORTING_PM_SAFE feature bit

Link Lin <[email protected]> Wed, 29 Jul 2026 19:52:11 -0700

Newsgroups	dev.linux.lists.virtualization,org.kernel.vger.linux-kernel,org.kernel.vger.stable,org.kvack.linux-mm
Message-ID	<CALUx4KQfyRgG3ewQZMuU4+AMCyrh8+rH=-MOZLBv29PbPcnhYA@mail.gmail.com>

Hi all,

Friendly ping on this RFC.

We'd love your feedback on whether using a new feature bit
(VIRTIO_BALLOON_F_REPORTING_PM_SAFE) to negotiate PM suspend safety is
acceptable, or if you have concerns about protocol-level handshakes for
kernel PM fix states.

If you prefer an alternative approach for safe fleet deployment, please let
us know. Thank you!

Sincerely,
Link