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doc: update Kconfig related doc 

Replace Kconfig related scheduler configuration with scenario XML
file configuration in tutorials because the Kconfig related files
have been removed in the other PR 6358.

Signed-off-by: Kunhui-Li <kunhuix.li@intel.com>
This commit is contained in:
Kunhui-Li 2021-08-05 18:18:56 +08:00 committed by David Kinder
parent 3f276e7ddd
commit e0f4a05df2
1 changed files with 4 additions and 19 deletions
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23
doc/tutorials/cpu_sharing.rst
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@ -128,26 +128,11 @@ and BVT (Borrowed Virtual Time) scheduler.
Scheduler configuration
* The scheduler used at runtime is defined in the scenario XML file
via the :option:`hv.FEATURES.SCHEDULER` option. The default scheduler
is **SCHED_BVT**. Use the :ref:`ACRN configuration tool <acrn_configuration_tool>`
if you want to change this scenario option value.
* The option in Kconfig decides the only scheduler used in runtime.
``hypervisor/arch/x86/Kconfig``
.. code-block:: none
choice
prompt "ACRN Scheduler"
default SCHED_BVT
help
Select the CPU scheduler to be used by the hypervisor
config SCHED_BVT
bool "BVT scheduler"
help
BVT (Borrowed Virtual time) is virtual time based scheduling algorithm. It
dispatches the runnable thread with the earliest effective virtual time.
TODO: BVT scheduler will be built on top of prioritized scheduling mechanism,
i.e. higher priority threads get scheduled first, and same priority tasks are
scheduled per BVT.
The default scheduler is **SCHED_BVT**.