Qiang Zhang 79b91b339b hv: sched: add four parameters for BVT scheduler ...

Per BVT (Borrowed Virtual Time) scheduler design, following per thread
parameters are required to tune scheduling behaviour.
- weight
  The time sharing of a thread on CPU.
- warp
  Boost value of virtual time of a thread (time borrowed from future) to
  reduce Effective Virtual Time to prioritize the thread.
- warp_limit
  Max warp time in one warp.
- unwarp_period
  Min unwarp time after a warp.

As of now, only weight is in use to tune virtual time ratio of VCPU
threads from different VMs. Others parameters are for future extension.

Tracked-On: #8500
Reviewed-by: Junjie Mao <junjie.mao@intel.com>
Signed-off-by: Qiang Zhang <qiang4.zhang@intel.com>

2023-09-18 16:26:05 +08:00

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