Re: [PATCH v3 21/22] arm64: Delay enabling hardware DBM feature

From: Mark Rutland
Date: Thu Mar 08 2018 - 08:56:04 EST


On Thu, Mar 08, 2018 at 01:53:13PM +0000, Dave Martin wrote:
> In practice, we don't race booting of two CPUs against each other
> IIUC.

Yup. Today, hotplugs are strictly serialized.

Several things would have to change for parallel hotplug to be feasible.

Thanks,
Mark.