From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <kvm-owner@kernel.org>
X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on
	aws-us-west-2-korg-lkml-1.web.codeaurora.org
Received: from vger.kernel.org (vger.kernel.org [23.128.96.18])
	by smtp.lore.kernel.org (Postfix) with ESMTP id CB783C433F5
	for <kvm@archiver.kernel.org>; Tue,  1 Feb 2022 14:23:16 +0000 (UTC)
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S239182AbiBAOXQ (ORCPT <rfc822;kvm@archiver.kernel.org>);
        Tue, 1 Feb 2022 09:23:16 -0500
Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51922 "EHLO
        lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S239141AbiBAOXP (ORCPT <rfc822;kvm@vger.kernel.org>);
        Tue, 1 Feb 2022 09:23:15 -0500
Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [IPv6:2001:4d48:ad52:32c8:5054:ff:fe00:142])
        by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 21B31C061714
        for <kvm@vger.kernel.org>; Tue,  1 Feb 2022 06:23:15 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed;
        d=armlinux.org.uk; s=pandora-2019; h=Sender:In-Reply-To:Content-Type:
        MIME-Version:References:Message-ID:Subject:Cc:To:From:Date:Reply-To:
        Content-Transfer-Encoding:Content-ID:Content-Description:Resent-Date:
        Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:
        List-Help:List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive;
        bh=hJw4juwcXiLROD+gBZlosjCAXy9f8rYxQll2UPCK+OM=; b=Fen7RYje802p8ZXgyeoWUH5B8+
        hX5lpvYwXwE2uWGhtwosFdyKJhhJ3rg09dAekRcKnZBeVScYv2Lo/yhlx8/6e9D9mfihA+C0V1wvH
        6+aKKjjNPj1byS3evLbvqzxB57Gtoot0rb6X5yts3nNaTArmwF99W2RPKRShrwFBXYGLY97OH0+RM
        LuDVBmk40xMYkwKqneTtXAU7Xjqb94RBe5EvSgRdqCxZnTQVe0K4wQMGPNTK4RRLvTsA4Vh5i9toq
        ZRhx9mXi4aXih2S3skeD8tKiLQdJd47jrWmchV/XVQdIjwRlqVWfwkQ2P8IoZ2Wva6BITOoD332tI
        2DhnrNoA==;
Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:56962)
        by pandora.armlinux.org.uk with esmtpsa  (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
        (Exim 4.94.2)
        (envelope-from <linux@armlinux.org.uk>)
        id 1nEu3j-0000gx-HF; Tue, 01 Feb 2022 14:23:03 +0000
Received: from linux by shell.armlinux.org.uk with local (Exim 4.94.2)
        (envelope-from <linux@shell.armlinux.org.uk>)
        id 1nEu3d-00028L-0R; Tue, 01 Feb 2022 14:22:57 +0000
Date:   Tue, 1 Feb 2022 14:22:56 +0000
From:   "Russell King (Oracle)" <linux@armlinux.org.uk>
To:     Marc Zyngier <maz@kernel.org>
Cc:     linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu,
        kvm@vger.kernel.org, Andre Przywara <andre.przywara@arm.com>,
        Christoffer Dall <christoffer.dall@arm.com>,
        Jintack Lim <jintack@cs.columbia.edu>,
        Haibo Xu <haibo.xu@linaro.org>,
        Ganapatrao Kulkarni <gankulkarni@os.amperecomputing.com>,
        Chase Conklin <chase.conklin@arm.com>,
        James Morse <james.morse@arm.com>,
        Suzuki K Poulose <suzuki.poulose@arm.com>,
        Alexandru Elisei <alexandru.elisei@arm.com>,
        karl.heubaum@oracle.com, mihai.carabas@oracle.com,
        miguel.luis@oracle.com, kernel-team@android.com
Subject: Re: [PATCH v6 01/64] arm64: Add ARM64_HAS_NESTED_VIRT cpufeature
Message-ID: <YflCQMLqX9lcAgsy@shell.armlinux.org.uk>
References: <20220128121912.509006-1-maz@kernel.org>
 <20220128121912.509006-2-maz@kernel.org>
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20220128121912.509006-2-maz@kernel.org>
Sender: Russell King (Oracle) <linux@armlinux.org.uk>
Precedence: bulk
List-ID: <kvm.vger.kernel.org>
X-Mailing-List: kvm@vger.kernel.org

On Fri, Jan 28, 2022 at 12:18:09PM +0000, Marc Zyngier wrote:
> From: Jintack Lim <jintack.lim@linaro.org>
> 
> Add a new ARM64_HAS_NESTED_VIRT feature to indicate that the
> CPU has the ARMv8.3 nested virtualization capability, together
> with the 'kvm-arm.mode=nested' command line option.
> 
> This will be used to support nested virtualization in KVM.
> 
> Signed-off-by: Jintack Lim <jintack.lim@linaro.org>
> Signed-off-by: Andre Przywara <andre.przywara@arm.com>
> Signed-off-by: Christoffer Dall <christoffer.dall@arm.com>
> [maz: moved the command-line option to kvm-arm.mode]
> Signed-off-by: Marc Zyngier <maz@kernel.org>

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!