config-linux: clarify the "MB:"-line filtering in RDT.

The thinking is that the runtimes should not do the filtering of values,
but instead just apply the values in order. This way the possible
MB-lines in l3CacheSchema will become overwritten by memBwSchema values
(if the domains overlap).

Note that we can't just concatenate the values because kernel will error
out if the same domain is attempted to be set multiple times within one
write() call.

Signed-off-by: Ismo Puustinen <[email protected]>

Author: ipuustin

config-linux.md

@@ -648,9 +648,7 @@ The following parameters can be specified for the container:
 
 The following rules on parameters MUST be applied:
 
-* If both `l3CacheSchema` and `memBwSchema` are set, runtimes MUST write the combined value to the `schemata` file in that sub-directory discussed in `closID`.
-
-* If `l3CacheSchema` contains a line beginning with `MB:`, the value written to `schemata` file MUST be the non-`MB:` line(s) from `l3CacheSchema` and the line from `memBWSchema`.
+* If both `l3CacheSchema` and `memBwSchema` are set, runtimes MUST write the values to the `schemata` file in that sub-directory discussed in `closID`. The runtimes MUST write `l3CacheSchema` first and `memBwSchema` last.
 
 * If either `l3CacheSchema` or `memBwSchema` is set, runtimes MUST write the value to the `schemata` file in the that sub-directory discussed in `closID`.