From nobody Fri May 3 12:14:29 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org ARC-Seal: i=1; a=rsa-sha256; t=1596547075; cv=none; d=zohomail.com; s=zohoarc; b=PhdTgbBWwbThNrkPfsiNfd2QvI91tul4bE0Eu2Z2xt9yMz63z+HMyXM81q4eo2sHracYOLQFSqcOZaAhkA4wJOSdqgF4ARCmMMT1DT+qEN44OtiUDKNeejAHoeRrpsWiTPCGEeilPnatz4oz/fMVaWM3akLpAA5zm/7OzDEu5JU= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1596547075; h=Content-Type:Content-Transfer-Encoding:Cc:Date:From:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:Sender:Subject:To; bh=q+JmrLiCfNEuHVQ6U6K6v4Vqvg8JeGkLxMef5uXApi4=; b=Fh9WYahef7p9qQYT5ZBbJ+5GnZd/dt7w2/IoPPCa9oiniCgiCwFghxEkOO04YngZ+cEI+uBCPt5tuPb6eesAbBnZ+yhcq+LVwN1II7Hj25cPfaKd4auiUvl4/yLd3dQTnB5qc8KHcfyXnC/6Uh8ZnrUYOSREibxdPOj0OaeYg9w= ARC-Authentication-Results: i=1; mx.zohomail.com; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 159654707508042.922799507996615; Tue, 4 Aug 2020 06:17:55 -0700 (PDT) Received: from localhost ([::1]:41318 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1k2wpF-0001YD-92 for importer@patchew.org; Tue, 04 Aug 2020 09:17:53 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:56610) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k2woD-0000vP-9G; Tue, 04 Aug 2020 09:16:49 -0400 Received: from smtpout1.mo529.mail-out.ovh.net ([178.32.125.2]:49625) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1k2woA-00062B-SB; Tue, 04 Aug 2020 09:16:49 -0400 Received: from mxplan5.mail.ovh.net (unknown [10.109.156.124]) by mo529.mail-out.ovh.net (Postfix) with ESMTPS id 846604CF3E16; Tue, 4 Aug 2020 15:16:42 +0200 (CEST) Received: from kaod.org (37.59.142.103) by DAG4EX1.mxp5.local (172.16.2.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1979.3; Tue, 4 Aug 2020 15:16:41 +0200 Authentication-Results: garm.ovh; auth=pass (GARM-103G00512aaa5bd-ea34-4716-8a6f-37b19c1e86c8, 7F0E19CF32FCB863CFA223497E8C191ECC5502B4) smtp.auth=clg@kaod.org From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: David Gibson Subject: [PATCH] docs: Update POWER9 XIVE support for nested guests Date: Tue, 4 Aug 2020 15:16:39 +0200 Message-ID: <20200804131639.407049-1-clg@kaod.org> X-Mailer: git-send-email 2.25.4 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable X-Originating-IP: [37.59.142.103] X-ClientProxiedBy: DAG8EX2.mxp5.local (172.16.2.72) To DAG4EX1.mxp5.local (172.16.2.31) X-Ovh-Tracer-GUID: 0e86c981-7f80-496c-9e4e-33d876ef09e1 X-Ovh-Tracer-Id: 6897825780829359072 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgeduiedrjeeigdeifecutefuodetggdotefrodftvfcurfhrohhfihhlvgemucfqggfjpdevjffgvefmvefgnecuuegrihhlohhuthemucehtddtnecusecvtfgvtghiphhivghnthhsucdlqddutddtmdenucfjughrpefhvffufffkofggtgfgihesthekredtredtjeenucfhrhhomhepveorughrihgtucfnvgcuifhorghtvghruceotghlgheskhgrohgurdhorhhgqeenucggtffrrghtthgvrhhnpeefvdeutddvieekkeeuhfekudejjefggffghfetgfelgfevveefgefhvdegtdelveenucfkpheptddrtddrtddrtddpfeejrdehledrudegvddruddtfeenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmhhouggvpehsmhhtphdqohhuthdphhgvlhhopehmgihplhgrnhehrdhmrghilhdrohhvhhdrnhgvthdpihhnvghtpedtrddtrddtrddtpdhmrghilhhfrhhomheptghlgheskhgrohgurdhorhhgpdhrtghpthhtoheptghlgheskhgrohgurdhorhhg Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=178.32.125.2; envelope-from=clg@kaod.org; helo=smtpout1.mo529.mail-out.ovh.net X-detected-operating-system: by eggs.gnu.org: First seen = 2020/08/04 09:16:42 X-ACL-Warn: Detected OS = Linux 3.11 and newer X-Spam_score_int: -28 X-Spam_score: -2.9 X-Spam_bar: -- X-Spam_report: (-2.9 / 5.0 requ) BAYES_00=-1.9, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-1, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham 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, =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" It is not yet supported. Signed-off-by: C=C3=A9dric Le Goater --- docs/specs/ppc-spapr-xive.rst | 5 +++++ 1 file changed, 5 insertions(+) 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 older = 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 2.25.4