linux-kernel - Re: [PATCH v3 03/23] arm/arm64: Add new is_kernel_in_hyp

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Message-ID: <20160208144146.GM6076@e104818-lin.cambridge.arm.com>
Date:	Mon, 8 Feb 2016 14:41:47 +0000
From:	Catalin Marinas <catalin.marinas@....com>
To:	Marc Zyngier <marc.zyngier@....com>
Cc:	Will Deacon <will.deacon@....com>,
	Christoffer Dall <christoffer.dall@...aro.org>,
	kvmarm@...ts.cs.columbia.edu, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, kvm@...r.kernel.org
Subject: Re: [PATCH v3 03/23] arm/arm64: Add new is_kernel_in_hyp_mode
 predicate

On Wed, Feb 03, 2016 at 05:59:56PM +0000, Marc Zyngier wrote:
> With ARMv8.1 VHE extension, it will be possible to run the kernel
> at EL2 (aka HYP mode). In order for the kernel to easily find out
> where it is running, add a new predicate that returns whether or
> not the kernel is in HYP mode.
> 
> For completeness, the 32bit code also get such a predicate (always
> returning false) so that code common to both architecture (timers,
> KVM) can use it transparently.
> 
> Acked-by: Christoffer Dall <christoffer.dall@...aro.org>
> Signed-off-by: Marc Zyngier <marc.zyngier@....com>

Acked-by: Catalin Marinas <catalin.marinas@....com>