From: David Stevens <stevensd@chromium.org>
To: "Michael S . Tsirkin" <mst@redhat.com>,
Jason Wang <jasowang@redhat.com>,
virtio-comment@lists.oasis-open.org,
virtio-dev@lists.oasis-open.org
Cc: parav@nvidia.com, David Stevens <stevensd@chromium.org>
Subject: [virtio-dev] [PATCH v4 0/1] Define a low power mode for devices
Date: Fri, 16 Feb 2024 17:24:31 +0900 [thread overview]
Message-ID: <20240216082432.709956-1-stevensd@chromium.org> (raw)
The Linux patch [1] added support for suspending virtio devices using
native PCI power management. However, Linux does PCI power management
during the noirq phase of suspend and resume. Without a mechanism to
suspend/resume virtio devices when the driver is suspended/resumed in
the early phase of suspend/late phase of resume, there is a window where
interrupts can be lost.
[1] https://lore.kernel.org/lkml/20231208070754.3132339-1-stevensd@chromium.org/
v3 -> v4:
- Define virtio-pci specific power management that can be used in
conjunction with PCI power management.
v2 -> v3:
- Use different words for some concepts to avoid conflicts with other
parts of the spec.
- Rewrite various sentences to improve clarity.
v1 -> v2:
- Define virtio-pci support on top of PCI power management.
- Add more conformance requirements.
David Stevens (1):
Add suspend support for virtio PCI devices
transport-pci.tex | 51 +++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
--
2.44.0.rc0.258.g7320e95886-goog
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next reply other threads:[~2024-02-16 8:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-16 8:24 David Stevens [this message]
2024-02-16 8:24 ` [virtio-dev] [PATCH v4 1/1] Add suspend support for virtio PCI devices David Stevens
2024-02-16 8:56 ` [virtio-dev] " Michael S. Tsirkin
2024-02-18 10:59 ` Zhu, Lingshan
2024-02-19 6:46 ` David Stevens
2024-02-19 7:42 ` Michael S. Tsirkin
2024-02-26 6:42 ` Jason Wang
2024-02-26 8:46 ` David Stevens
2024-02-26 10:23 ` [virtio-dev] Re: [virtio-comment] " Zhu, Lingshan
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