vdpa: make sure set_features is invoked for legacy

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Some legacy guests just assume features are 0 after reset.
We detect that config space is accessed before features are
set and set features to 0 automatically.
Note: some legacy guests might not even access config space, if this is
reported in the field we might need to catch a kick to handle these.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

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This commit is contained in:

Michael S. Tsirkin 2020-07-27 10:51:55 -04:00

parent 03bea764bf

commit 452639a64a

2 changed files with 35 additions and 0 deletions

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1

drivers/vdpa/vdpa.c

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34

include/linux/vdpa.h

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