On 9/14/2023 7:09 PM, Michael S. Tsirkin wrote:
On Wed, Sep 06, 2023 at 04:16:36PM +0800, Zhu Lingshan wrote:
When SUSPEND is set, the device should stabilize the device
states and virtqueue states, therefore the device should
ignore resetting vqs when SUSPEND is set in device status.
Signed-off-by: Zhu Lingshan <[email protected]>
And do what? If you really feel it's important we can prohibit
driver from touching state. But generally this seems
un-orthogonal.
As discussed in other threads, we will introduce new feature bit controlling
this.
---
content.tex | 3 +++
1 file changed, 3 insertions(+)
diff --git a/content.tex b/content.tex
index 9d727ce..cd2b426 100644
--- a/content.tex
+++ b/content.tex
@@ -443,6 +443,9 @@ \subsubsection{Virtqueue Reset}\label{sec:Basic Facilities
of a Virtio Device /
The device MUST reset any state of a virtqueue to the default state,
including the available state and the used state.
+If VIRTIO_F_SUSPEND is negotiated and SUSPEND is set in \field{device status},
+the device SHOULD ignore resetting any virtqueues.
+
\drivernormative{\paragraph}{Virtqueue Reset}{Basic Facilities of a Virtio
Device / Virtqueues / Virtqueue Reset / Virtqueue Reset}
After the driver tells the device to reset a queue, the driver MUST verify that
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2.35.3
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