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hw/clock: Expose 'qtest-clock-period' QOM property for QTests

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Expose the clock period via the QOM 'qtest-clock-period' property so it
can be used in QTests. This property is only accessible in QTests (not
via HMP).

Signed-off-by: Inès Varhol <ines.varhol@telecom-paris.fr>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Luc Michel <luc@lmichel.fr>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20241003081105.40836-3-ines.varhol@telecom-paris.fr
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Inès Varhol 2024-10-14 17:05:51 +01:00 • committed by Peter Maydell
parent b91b8fe79d
commit 9240d65e0e
2 changed files with 22 additions and 0 deletions
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6
docs/devel/clocks.rst
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@ -358,6 +358,12 @@ humans (for instance in debugging), use ``clock_display_freq()``,
which returns a prettified string-representation, e.g. "33.3 MHz".
The caller must free the string with g_free() after use.
It's also possible to retrieve the clock period from a QTest by
accessing QOM property ``qtest-clock-period`` using a QMP command.
This property is only present when the device is being run under
the ``qtest`` accelerator; it is not available when QEMU is
being run normally.
Calculating expiry deadlines
----------------------------