From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mark Rutland <mark.rutland@arm.com>
Subject: Re: [PATCH 01/13] arm/arm64: Add new is_kernel_in_hyp_mode predicate
Date: Thu, 9 Jul 2015 10:42:30 +0100
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Hi,

> +static inline bool is_kernel_in_hyp_mode(void)
> +{
> +	u64 el;
> +
> +	asm("mrs %0, CurrentEL" : "=r" (el));
> +	return el == CurrentEL_EL2;
> +}

If you can include cputype.h, I think this can be:

static inline bool is_kernel_in_hyp_mode(void)
{
	return read_cpuid(CurrentEL) == CurrentEL_EL2;
}

Mark.