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| author |   Zhu Lingshan <lingshan.zhu@intel.com> | 2022-07-22 19:53:07 +0800 |
|---|---|---|
| committer |   Michael S. Tsirkin <mst@redhat.com> | 2022-08-11 04:26:08 -0400 |
| commit | a34bed37fc9d3da319bb75dfbf02a7d3e95e12de (patch) | |
| tree | 1a1229f26fb6a72fc42b1bc3412ef2e6140ced04 /tools/perf/scripts/python/call-graph-from-sql.py | |
| parent | vDPA/ifcvf: support userspace to query features and MQ of a management device (diff) | |
| download | linux-dev-a34bed37fc9d3da319bb75dfbf02a7d3e95e12de.tar.xz linux-dev-a34bed37fc9d3da319bb75dfbf02a7d3e95e12de.zip | |
vDPA: !FEATURES_OK should not block querying device config space
Users may want to query the config space of a vDPA device,
to choose a appropriate one for a certain guest. This means the
users need to read the config space before FEATURES_OK, and
the existence of config space contents does not depend on
FEATURES_OK.
The spec says:
The device MUST allow reading of any device-specific configuration
field before FEATURES_OK is set by the driver. This includes
fields which are conditional on feature bits, as long as those
feature bits are offered by the device.
Signed-off-by: Zhu Lingshan <lingshan.zhu@intel.com>
Message-Id: <20220722115309.82746-5-lingshan.zhu@intel.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-sql.py')
0 files changed, 0 insertions, 0 deletions