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authorStephen Hemminger <stephen@networkplumber.org>2018-01-09 12:57:29 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-01-10 17:40:53 +0100
commitc5702d1b31085ccda7f46e514a51c6c8db54cdc4 (patch)
treea8558b561545a304c49e97f47d1f3b0c18d57793 /Documentation/driver-api
parent44625605a27f1bd9e9b40dc339a95ff638706bdb (diff)
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>
Diffstat (limited to 'Documentation/driver-api')
-rw-r--r--Documentation/driver-api/uio-howto.rst5
1 files changed, 5 insertions, 0 deletions
diff --git a/Documentation/driver-api/uio-howto.rst b/Documentation/driver-api/uio-howto.rst
index 3a0d3f5f5c53..968f4c21c733 100644
--- a/Documentation/driver-api/uio-howto.rst
+++ b/Documentation/driver-api/uio-howto.rst
@@ -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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