From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.5 required=3.0 tests=BAYES_00,DATE_IN_PAST_03_06, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5D45C433DF for ; Wed, 5 Aug 2020 05:48:45 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 8388A206B6 for ; Wed, 5 Aug 2020 05:48:45 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=gibson.dropbear.id.au header.i=@gibson.dropbear.id.au header.b="dUGHuybN" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 8388A206B6 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=gibson.dropbear.id.au Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:53164 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k3CI8-0001Lh-RX for qemu-devel@archiver.kernel.org; Wed, 05 Aug 2020 01:48:44 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:44740) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3CHO-0000oL-Il; Wed, 05 Aug 2020 01:47:58 -0400 Received: from bilbo.ozlabs.org ([203.11.71.1]:43443 helo=ozlabs.org) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k3CHL-00047S-LA; Wed, 05 Aug 2020 01:47:58 -0400 Received: by ozlabs.org (Postfix, from userid 1007) id 4BM0yZ52w9z9sRK; Wed, 5 Aug 2020 15:47:50 +1000 (AEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gibson.dropbear.id.au; s=201602; t=1596606470; bh=XopgAh5OXsXzay6tHa5wpGyKhf3N4pPNHM3xmPMu+K8=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=dUGHuybNNEPs0tgLfxaHo6IqIyEMXYSRgNdl2Rs0kFvWg/w37/ulruEVZe/3euk7J cXj87DzYKorYGh7adS05n12475oh8bgiOyXMneJdEbONSQnJRpB4kw69GS5rGxpdcv SmPYetwEyzPlISlDSFUIbPzmB5/z47d6Z88+duEE= Date: Wed, 5 Aug 2020 11:51:22 +1000 From: David Gibson To: =?iso-8859-1?Q?C=E9dric?= Le Goater Subject: Re: [PATCH] docs: Update POWER9 XIVE support for nested guests Message-ID: <20200805015122.GB2178@yekko.fritz.box> References: <20200804131639.407049-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="yNb1oOkm5a9FJOVX" Content-Disposition: inline In-Reply-To: <20200804131639.407049-1-clg@kaod.org> Received-SPF: pass client-ip=203.11.71.1; envelope-from=dgibson@ozlabs.org; helo=ozlabs.org X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/05 01:47:50 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] X-Spam_score_int: 6 X-Spam_score: 0.6 X-Spam_bar: / X-Spam_report: (0.6 / 5.0 requ) BAYES_00=-1.9, DATE_IN_PAST_03_06=1.592, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HEADER_FROM_DIFFERENT_DOMAINS=1, SPF_HELO_PASS=-0.001, SPF_PASS=-0.001, URIBL_BLOCKED=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-ppc@nongnu.org, qemu-devel@nongnu.org Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --yNb1oOkm5a9FJOVX Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Tue, Aug 04, 2020 at 03:16:39PM +0200, C=E9dric Le Goater wrote: > It is not yet supported. >=20 > Signed-off-by: C=E9dric Le Goater Applied to ppc-for-5.2. > --- > docs/specs/ppc-spapr-xive.rst | 5 +++++ > 1 file changed, 5 insertions(+) >=20 > diff --git a/docs/specs/ppc-spapr-xive.rst b/docs/specs/ppc-spapr-xive.rst > index 6159bc6eed62..7199db730b82 100644 > --- a/docs/specs/ppc-spapr-xive.rst > +++ b/docs/specs/ppc-spapr-xive.rst > @@ -61,6 +61,11 @@ depend on the XIVE KVM capability of the host. On olde= r kernels > without XIVE KVM support, QEMU will use the emulated XIVE device as a > fallback and on newer kernels (>=3D5.2), the KVM XIVE device. > =20 > +XIVE native exploitation mode is not supported for KVM nested guests, > +VMs running under a L1 hypervisor (KVM on pSeries). In that case, the > +hypervisor will not advertise the KVM capability and QEMU will use the > +emulated XIVE device, same as for older versions of KVM. > + > As a final refinement, the user can also switch the use of the KVM > device with the machine option ``kernel_irqchip``. > =20 --=20 David Gibson | I'll have my music baroque, and my code david AT gibson.dropbear.id.au | minimalist, thank you. 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