From patchwork Mon Apr 5 01:19:42 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicholas Piggin X-Patchwork-Id: 1462263 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org (client-ip=112.213.38.117; helo=lists.ozlabs.org; envelope-from=linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org; receiver=) Authentication-Results: ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=t7RQa1AA; dkim-atps=neutral Received: from lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FDCxB3sWGz9sTD for ; Mon, 5 Apr 2021 11:38:54 +1000 (AEST) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4FDCxB2rLGz3dxD for ; Mon, 5 Apr 2021 11:38:54 +1000 (AEST) Authentication-Results: lists.ozlabs.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20161025 header.b=t7RQa1AA; dkim-atps=neutral X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::42f; helo=mail-pf1-x42f.google.com; envelope-from=npiggin@gmail.com; receiver=) Authentication-Results: lists.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=t7RQa1AA; dkim-atps=neutral Received: from mail-pf1-x42f.google.com (mail-pf1-x42f.google.com [IPv6:2607:f8b0:4864:20::42f]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4FDCZ843Vgz3cc1 for ; Mon, 5 Apr 2021 11:22:24 +1000 (AEST) Received: by mail-pf1-x42f.google.com with SMTP id x126so2205100pfc.13 for ; Sun, 04 Apr 2021 18:22:24 -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=vFMMQgThsUAc2S0LaT7h9p9PH0nf5CHdrn+oC6qHpCo=; b=t7RQa1AAPbICBHtL8E70gqsHEBscLP9xgAq9L4rDfPNtEPV/RQgBJ9S/DH4OmSdp1+ PFyah3EPxGggyNqvxja+hPRdFokmnWm/yVj4+gOOoyQHwNut/JxFa0dYq1tU7PTA4x2u D7L5vAy+m7IroXLg4/GHcw7zDPvKdG3Q+QQR9Um+H1LB4DceerKeucxt8FthR60FiYk1 I2A0L3/E9wD8Jl4OePJ7G/X6dfwxEkLi9zLNZfNbSAqE4vJ5lOzsvbJuvoY1fpd6CjsZ mSEq1mygCHkNZW/W18HAsvGd+zd8HunASvkcReeradGU37kHChRyfg9i1KMhyJK+vVAm +IAQ== 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=vFMMQgThsUAc2S0LaT7h9p9PH0nf5CHdrn+oC6qHpCo=; b=IQALhj5OifSD7nG0JusVSOhBtH/NR/wdjxBV/FSFAliZJvXKfQ2UYGTpYpvPc0UyfX DG1tVrtFJWDSnUhlQ70tZe7avjvC2iDxz+Rt6YzA5y/BEh4CC5HaMO3tqOpuIImak7H1 1fCFxUT6EKyxIJWg0DOVtWsNAkzDfy9Lh6dJtzV6bM8f/mQSSDmgD1gSn2MKA4qyQcvu rmciiBtGf/3TfnoyLPak5rVn9E5dEE+QBpf4KY+TOTdDoaTsrGinH90pJz28pi43skRt TzZQA+f52brs2nD3/07WmlyyB623tVdg9xhfFbAlUZnHYHyOyjoMXqPoyYdt89t3cUvk ppgQ== X-Gm-Message-State: AOAM531oVzt/Qmpf2RHsfcC2NkvmHKmW2diDqfEDqlRixEl0sVzVW1eI iBGQwy07ajA//hog+98236c= X-Google-Smtp-Source: ABdhPJw8R1k5TWI9uLfaH0DflPKY0792pji+A58QORsoUYVY/k19haFzvL7nlhHgJF/feZXhIgIMbA== X-Received: by 2002:a65:610f:: with SMTP id z15mr20974993pgu.360.1617585742986; Sun, 04 Apr 2021 18:22:22 -0700 (PDT) Received: from bobo.ibm.com ([1.132.215.134]) by smtp.gmail.com with ESMTPSA id e3sm14062536pfm.43.2021.04.04.18.22.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Apr 2021 18:22:22 -0700 (PDT) From: Nicholas Piggin To: kvm-ppc@vger.kernel.org Subject: [PATCH v6 42/48] KVM: PPC: Book3S HV P9: Allow all P9 processors to enable nested HV Date: Mon, 5 Apr 2021 11:19:42 +1000 Message-Id: <20210405011948.675354-43-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210405011948.675354-1-npiggin@gmail.com> References: <20210405011948.675354-1-npiggin@gmail.com> MIME-Version: 1.0 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: linuxppc-dev@lists.ozlabs.org, Nicholas Piggin Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" 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 20ced6c5edfd..5ef43d9b19bc 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -5443,7 +5443,7 @@ 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 */