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uio: document uio_hv_generic regions 

Describe the regions present with uio_hv_generic in documentation for
driver API.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Stephen Hemminger 2018-01-09 12:57:29 -08:00 committed by Greg Kroah-Hartman
parent 44625605a2
commit c5702d1b31
1 changed files with 5 additions and 0 deletions
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5
Documentation/driver-api/uio-howto.rst
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@ -698,6 +698,11 @@ prevents the device from generating further interrupts until the bit is
cleared. The userspace driver should clear this bit before blocking and
waiting for more interrupts.
The vmbus device regions are mapped into uio device resources:
0) Channel ring buffers: guest to host and host to guest
1) Guest to host interrupt signalling pages
2) Guest to host monitor page
Further information
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