From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoffer Dall <christoffer.dall@linaro.org>
Subject: Re: [PATCH v3 11/22] arm64: KVM: Add patchable function selector
Date: Fri, 11 Dec 2015 22:21:16 +0100
Message-ID: <20151211212116.GI27689@cbox>
References: <1449485618-9443-1-git-send-email-marc.zyngier@arm.com>
 <1449485618-9443-12-git-send-email-marc.zyngier@arm.com>
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To: Marc Zyngier <marc.zyngier@arm.com>
Cc: kvm@vger.kernel.org, Ard Biesheuvel <ard.biesheuvel@linaro.org>, Catalin Marinas <catalin.marinas@arm.com>, kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org
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On Mon, Dec 07, 2015 at 10:53:27AM +0000, Marc Zyngier wrote:
> KVM so far relies on code patching, and is likely to use it more
> in the future. The main issue is that our alternative system works
> at the instruction level, while we'd like to have alternatives at
> the function level.
> 
> In order to cope with this, add the "hyp_alternate_select" macro that
> outputs a brief sequence of code that in turn can be patched, allowing
> an alternative function to be selected.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

Acked-by: Christoffer Dall <christoffer.dall@linaro.org>