[PATCH v2] arm64: KVM: Register CPU notifiers when the kernel runs at HYP

[Marc Zyngier]

On 30/03/16 18:33, James Morse wrote:
> When the kernel is running at EL2, it doesn't need init_hyp_mode() to
> configure page tables for HYP. This function also registers the CPU
> hotplug and lower power notifiers that cause HYP to be re-initialised
> after the CPU has been reset.
> 
> To avoid losing the register state that controls stage2 translation, move
> the registering of these notifiers into init_subsystems(), and add a
> is_kernel_in_hyp_mode() path to each callback.
> 
> Fixes: 1e947bad0b6 ("arm64: KVM: Skip HYP setup when already running in HYP")
> Signed-off-by: James Morse <james.morse at arm.com>

Acked-by: Marc Zyngier <marc.zyngier at arm.com>

	M.
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