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Diffstat (limited to 'docs/devel')
| -rw-r--r-- | docs/devel/clocks.rst | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/docs/devel/clocks.rst b/docs/devel/clocks.rst index 177ee1c90d..3f744f2be1 100644 --- a/docs/devel/clocks.rst +++ b/docs/devel/clocks.rst @@ -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 ---------------------------- |