Commits on Jun 29, 2024

1. vhost_user: ignore unknown features from backend …

   virtiofsd 1.11.0 added support for VHOST_USER_PROTOCOL_F_DEVICE_STATE.
   Upgrading virtiofsd meant that the latest released version of Cloud
   Hypervisor (39.0) was no longer able to communicate with it, because
   rather than just ignoring the unsupported feature, it got an
   unrecoverable "invalid message" error.  This demonstrates that it's
   better for frontends to just ignore offers of unsupported features.
   If the backend requires some feature, it'll get a chance to know that
   when we send VHOST_USER_SET_PROTOCOL_FEATURES anyway.
   
   Signed-off-by: Alyssa Ross <hi@alyssa.is>

   

   alyssais committed Jun 29, 2024
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