From mboxrd@z Thu Jan  1 00:00:00 1970
From: James Morse <james.morse@arm.com>
Subject: Re: [PATCH v3 04/25] arm64: KVM: Allow the main HYP code to use the
 init hyp stub implementation
Date: Mon, 13 Mar 2017 17:59:11 +0000
Message-ID: <58C6DDEF.3080100@arm.com>
References: <20170306142458.8875-1-marc.zyngier@arm.com> <20170306142458.8875-5-marc.zyngier@arm.com>
Mime-Version: 1.0
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: 7bit
Cc: Russell King <linux@arm.linux.org.uk>,
        Ard Biesheuvel <ard.biesheuvel@linaro.org>,
        Catalin Marinas <catalin.marinas@arm.com>, cdall@linaro.org,
        linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
        kvmarm@lists.cs.columbia.edu
To: Marc Zyngier <marc.zyngier@arm.com>
Return-path: <kvm-owner@vger.kernel.org>
Received: from foss.arm.com ([217.140.101.70]:52636 "EHLO foss.arm.com"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S1751258AbdCMR70 (ORCPT <rfc822;kvm@vger.kernel.org>);
        Mon, 13 Mar 2017 13:59:26 -0400
In-Reply-To: <20170306142458.8875-5-marc.zyngier@arm.com>
Sender: kvm-owner@vger.kernel.org
List-ID: <kvm.vger.kernel.org>

On 06/03/17 14:24, Marc Zyngier wrote:
> We now have a full hyp-stub implementation in the KVM init code,
> but the main KVM code only supports HVC_GET_VECTORS, which is not
> enough.
> 
> Instead of reinventing the wheel, let's reuse the init implementation
> by branching to the idmap page when called with a hyp-stub hypercall.

Since your merged page tables change this isn't as scary as it looks, as the
idmap is always present.


Reviewed-by: James Morse <james.morse@arm.com>


Thanks,

James