[Xen-devel] [PATCH 0/5] x86: more power-efficient CPU parking

["Jan Beulich" <JBeulich@xxxxxxxx>]

When putting CPUs to sleep permanently, we should try to put them into
the most power conserving state possible. For now it is unclear whether,
especially in a deep C-state, the P-state also matters, so this series only
arranges for the C-state side of things (plus some cleanup).

1: x86/cpuidle: replace a pointless NULL check
2: x86/idle: re-arrange dead-idle handling
3: x86/cpuidle: push parked CPUs into deeper sleep states when possible
4: x86/cpuidle: clean up Cx dumping
5: x86: place non-parked CPUs into wait-for-SIPI state after offlining

Jan



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