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=-9.0 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT 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 4A061C43381 for ; Wed, 20 Mar 2019 09:03:04 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (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 C1AE82175B for ; Wed, 20 Mar 2019 09:03:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C1AE82175B Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kaod.org Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 44PP8P673xzDqDS for ; Wed, 20 Mar 2019 20:03:01 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=kaod.org (client-ip=87.98.165.38; helo=6.mo2.mail-out.ovh.net; envelope-from=clg@kaod.org; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=none (p=none dis=none) header.from=kaod.org Received: from 6.mo2.mail-out.ovh.net (6.mo2.mail-out.ovh.net [87.98.165.38]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 44PNqC0gShzDqG0 for ; Wed, 20 Mar 2019 19:48:05 +1100 (AEDT) Received: from player787.ha.ovh.net (unknown [10.109.160.93]) by mo2.mail-out.ovh.net (Postfix) with ESMTP id B71D418A6E2 for ; Wed, 20 Mar 2019 09:40:09 +0100 (CET) Received: from kaod.org (lfbn-1-2226-17.w90-76.abo.wanadoo.fr [90.76.48.17]) (Authenticated sender: clg@kaod.org) by player787.ha.ovh.net (Postfix) with ESMTPSA id 4F1283F3B6A4; Wed, 20 Mar 2019 08:40:00 +0000 (UTC) From: =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= To: kvm-ppc@vger.kernel.org Subject: [PATCH v4 15/17] KVM: PPC: Book3S HV: XIVE: activate XIVE exploitation mode Date: Wed, 20 Mar 2019 09:37:49 +0100 Message-Id: <20190320083751.27001-16-clg@kaod.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190320083751.27001-1-clg@kaod.org> References: <20190320083751.27001-1-clg@kaod.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Ovh-Tracer-Id: 18188068572450950103 X-VR-SPAMSTATE: OK X-VR-SPAMSCORE: -100 X-VR-SPAMCAUSE: gggruggvucftvghtrhhoucdtuddrgedutddrieehgdduvdehucetufdoteggodetrfdotffvucfrrhhofhhilhgvmecuqfggjfdpvefjgfevmfevgfenuceurghilhhouhhtmecuhedttdenucesvcftvggtihhpihgvnhhtshculddquddttddm X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: kvm@vger.kernel.org, Paul Mackerras , =?UTF-8?q?C=C3=A9dric=20Le=20Goater?= , linuxppc-dev@lists.ozlabs.org, David Gibson Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Full support for the XIVE native exploitation mode is now available, advertise the capability KVM_CAP_PPC_IRQ_XIVE for guests running on PowerNV KVM Hypervisors only. Support for nested guests (pseries KVM Hypervisor) is not yet available. XIVE should also have been activated which is default setting on POWER9 systems running a recent Linux kernel. Signed-off-by: Cédric Le Goater Reviewed-by: David Gibson --- arch/powerpc/kvm/powerpc.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index b0858ee61460..f54926c78320 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -573,10 +573,11 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) #ifdef CONFIG_KVM_XIVE case KVM_CAP_PPC_IRQ_XIVE: /* - * Return false until all the XIVE infrastructure is - * in place including support for migration. + * We need XIVE to be enabled on the platform (implies + * a POWER9 processor) and the PowerNV platform, as + * nested is not yet supported. */ - r = 0; + r = xive_enabled() && !!cpu_has_feature(CPU_FTR_HVMODE); break; #endif -- 2.20.1