From patchwork Tue Mar 23 01:03:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicholas Piggin X-Patchwork-Id: 1456930 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=23.128.96.18; helo=vger.kernel.org; envelope-from=kvm-ppc-owner@vger.kernel.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=k1lc0eiP; dkim-atps=neutral Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by ozlabs.org (Postfix) with ESMTP id 4F4CqF4ChQz9t9b for ; Tue, 23 Mar 2021 12:06:01 +1100 (AEDT) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231480AbhCWBFd (ORCPT ); Mon, 22 Mar 2021 21:05:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231481AbhCWBFR (ORCPT ); Mon, 22 Mar 2021 21:05:17 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 01DC5C061574 for ; Mon, 22 Mar 2021 18:05:17 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id f2-20020a17090a4a82b02900c67bf8dc69so11451782pjh.1 for ; Mon, 22 Mar 2021 18:05:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=3HOlzMOQTyMx3+oJJcmS0eDxUvWov/rK0Ppdfq9k4uM=; b=k1lc0eiPw3tpV/7pFHwxf8llaTStIBB1onC3gyCxio3XhdBXYN4ECk1ttrgEOsKnAK liFQjQ5SeHTEQzXLZKFTiXFcRfmg6D3QZ3TUCEq5S8bhGK2rCG9NwVC3Flp1XwXPsSZA N/4JbP2uFCBN+f+A9lofvw//p6KvkDW/Wt772RHP3yCso13EOqXGOa63vX8FF+uECa+A dAckUB1CaBl/hWj1KImteVlspTJFAhfg1esqhyH7csF7G1RjSf3luqiTR37QPxRA+njv toFrA7FHKbXhmHstj1ABu6Ypz2CCoGWsGFsypni8TbIgOCjaVb240pMQ0NIA+vXsCcMp +Wzg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=3HOlzMOQTyMx3+oJJcmS0eDxUvWov/rK0Ppdfq9k4uM=; b=PwLUTrH0tTpPDm4Vy/MuRuO6QiRZ+3XIGCPqbSC46mukaKwtZszXLJ22VEqkg9zwKQ L1TpFnhXlqOrWeHwizjKpEavNFjlTA7F4IuNNZ4gN+GrNunxNr6PNanStkk4QXFq6C8p bfFU3mmYDpPNjLh78Gz952bQgQis1ExbwvhyDVlqEWJAKjS2+RQ0Nk56GPeJNWsUHQH0 /3q2e9ddueRG1XxAU8/e3s2RBIO7MiQsggcXm5Rnyr1TX+HB7/G9VqnmFkXx+u4g1fDC 709FwsafTnlei/12jK1BOvibb3EJlVLgFRP3VXMDKuAjRGsJjlfzNJiCSkXqJSJBsugl WDNQ== X-Gm-Message-State: AOAM530KyXzp4IFfZxYuBMfMBpE0TVUQ261fSd396p7mKXQza/ST9Atj OwfvmZWoi7K1WD+nxIKT3z6UTex82sk= X-Google-Smtp-Source: ABdhPJyteIdH4M5PV71IhIZ7DJUhfYQnBfviAaAtPx0jfh7eSevP5rjryXeXQrWDt+Zak4sIzQF1dw== X-Received: by 2002:a17:90a:1642:: with SMTP id x2mr1883961pje.88.1616461515524; Mon, 22 Mar 2021 18:05:15 -0700 (PDT) Received: from bobo.ibm.com ([58.84.78.96]) by smtp.gmail.com with ESMTPSA id e7sm14491894pfc.88.2021.03.22.18.05.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 22 Mar 2021 18:05:15 -0700 (PDT) From: Nicholas Piggin To: kvm-ppc@vger.kernel.org Cc: Nicholas Piggin , linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 41/46] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV Date: Tue, 23 Mar 2021 11:03:00 +1000 Message-Id: <20210323010305.1045293-42-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210323010305.1045293-1-npiggin@gmail.com> References: <20210323010305.1045293-1-npiggin@gmail.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org All radix guests go via the P9 path now, so there is no need to limit nested HV to processors that support "mixed mode" MMU. Remove the restriction. Signed-off-by: Nicholas Piggin --- arch/powerpc/kvm/book3s_hv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 85a14ce0ea0e..0f3c1792ab86 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -5420,7 +5420,7 @@ static int kvmhv_enable_nested(struct kvm *kvm) { if (!nested) return -EPERM; - if (!cpu_has_feature(CPU_FTR_ARCH_300) || no_mixing_hpt_and_radix) + if (!cpu_has_feature(CPU_FTR_ARCH_300)) return -ENODEV; /* kvm == NULL means the caller is testing if the capability exists */