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initial spec changes based on qemu-devel review #767

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Aug 18, 2023
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initial spec changes based on qemu-devel review #767

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32 changes: 16 additions & 16 deletions docs/vfio-user.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -1476,7 +1476,7 @@ The request payload for this message is a structure of the following format.
| | +---------+---------------------------+ |
| | | Bit | Definition | |
| | +=========+===========================+ |
| | | 0 to 15 | Feature bits | |
| | | 0 to 15 | Feature index | |
| | +---------+---------------------------+ |
| | | 16 | VFIO_DEVICE_FEATURE_GET | |
| | +---------+---------------------------+ |
Expand All @@ -1493,8 +1493,8 @@ The request payload for this message is a structure of the following format.
* *flags* defines the action to be performed by the server and upon which
feature:

* The feature bits are the least significant 16 bits of the flags field, and
can be accessed using the ``VFIO_DEVICE_FEATURE_MASK`` bit mask.
* The feature index consists of the least significant 16 bits of the flags
field, and can be accessed using the ``VFIO_DEVICE_FEATURE_MASK`` bit mask.

* ``VFIO_DEVICE_FEATURE_GET`` instructs the server to get the data for the
given feature.
Expand Down Expand Up @@ -1528,19 +1528,19 @@ The only device features supported by vfio-user are those related to migration,
although this may change in the future. They are a subset of those supported in
the VFIO implementation of the Linux kernel.

+----------------------------------------+-------+
| Name | Value |
+========================================+=======+
| VFIO_DEVICE_FEATURE_MIGRATION | 1 |
+----------------------------------------+-------+
| VFIO_DEVICE_FEATURE_MIG_DEVICE_STATE | 2 |
+----------------------------------------+-------+
| VFIO_DEVICE_FEATURE_DMA_LOGGING_START | 6 |
+----------------------------------------+-------+
| VFIO_DEVICE_FEATURE_DMA_LOGGING_STOP | 7 |
+----------------------------------------+-------+
| VFIO_DEVICE_FEATURE_DMA_LOGGING_REPORT | 8 |
+----------------------------------------+-------+
+----------------------------------------+---------------+
| Name | Feature Index |
+========================================+===============+
| VFIO_DEVICE_FEATURE_MIGRATION | 1 |
+----------------------------------------+---------------+
| VFIO_DEVICE_FEATURE_MIG_DEVICE_STATE | 2 |
+----------------------------------------+---------------+
| VFIO_DEVICE_FEATURE_DMA_LOGGING_START | 6 |
+----------------------------------------+---------------+
| VFIO_DEVICE_FEATURE_DMA_LOGGING_STOP | 7 |
+----------------------------------------+---------------+
| VFIO_DEVICE_FEATURE_DMA_LOGGING_REPORT | 8 |
+----------------------------------------+---------------+

``VFIO_DEVICE_FEATURE_MIGRATION``
"""""""""""""""""""""""""""""""""
Expand Down
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