[do not merge] acrn: support mwait emulation #68
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As we can only emulate unmonitored mwait, some adjust have to be made for kernel idle routing when running as ACRN guest. 1. Mark ecx bit2 for mwait to indicate an unmonitored mwait. 2. Clear TIF_POLLING_NRFLAG so that kernel uses event to wakeup core. Signed-off-by: Wu Zhou <[email protected]>
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As we can only emulate unmonitored mwait, some adjust have to be made for kernel idle routing when running as ACRN guest.