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plugins/hwprofile: adapt to the new plugin arguments scheme

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Parsing boolean arguments correctly (e.g. pattern=on or source=false).
Introduced a new "track" argument that takes a [read|write] value. This
substitutes passing read or write to "arg=" that is deprecated.

Also, matches are now taken one by one through the "match" argument.

Signed-off-by: Mahmoud Mandour <ma.mandourr@gmail.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210730135817.17816-7-ma.mandourr@gmail.com>
This commit is contained in:
Mahmoud Mandour 2021-07-30 15:58:10 +02:00 • committed by Alex Bennée
parent b18a0cad81
commit 60753843f6
2 changed files with 31 additions and 16 deletions
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8
docs/devel/tcg-plugins.rst
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@ -306,22 +306,22 @@ which will eventually report::
The hwprofile tool can only be used with system emulation and allows
the user to see what hardware is accessed how often. It has a number of options:
* arg=read or arg=write
* track=read or track=write
By default the plugin tracks both reads and writes. You can use one
of these options to limit the tracking to just one class of accesses.
* arg=source
* source
Will include a detailed break down of what the guest PC that made the
access was. Not compatible with arg=pattern. Example output::
access was. Not compatible with the pattern option. Example output::
cirrus-low-memory @ 0xfffffd00000a0000
pc:fffffc0000005cdc, 1, 256
pc:fffffc0000005ce8, 1, 256
pc:fffffc0000005cec, 1, 256
* arg=pattern
* pattern
Instead break down the accesses based on the offset into the HW
region. This can be useful for seeing the most used registers of a