[PATCH v5 2/3] KVM: dynamic halt_poll_ns adjustment

There is a downside of always-poll since poll is still happened for idle vCPUs which can waste cpu usage. This patch adds the ability to adjust halt_poll_ns dynamically, to grow halt_poll_ns when shot halt is detected, and to shrink halt_poll_ns when long halt is detected. There are two new

[PATCH v5 2/3] KVM: dynamic halt_poll_ns adjustment

There is a downside of always-poll since poll is still happened for idle vCPUs which can waste cpu usage. This patch adds the ability to adjust halt_poll_ns dynamically, to grow halt_poll_ns when shot halt is detected, and to shrink halt_poll_ns when long halt is detected. There are two new