From patchwork Wed Dec 11 08:47:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pingfan Liu X-Patchwork-Id: 299883 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from ozlabs.org (localhost [IPv6:::1]) by ozlabs.org (Postfix) with ESMTP id 02D1C2C0634 for ; Wed, 11 Dec 2013 19:48:37 +1100 (EST) Received: from mail-ob0-x234.google.com (mail-ob0-x234.google.com [IPv6:2607:f8b0:4003:c01::234]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (not verified)) by ozlabs.org (Postfix) with ESMTPS id 5DDAE2C034E for ; Wed, 11 Dec 2013 19:47:08 +1100 (EST) Received: by mail-ob0-f180.google.com with SMTP id wo20so6514815obc.25 for ; Wed, 11 Dec 2013 00:47:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=k/dXOLrCwm4sDpPGlEPJ/U6augFU/DgB6yUi/ObgqkY=; b=Xs9sQtc4Vbg3Ic0hs6dKvOXNpJmqZnuEH6/p58ikPOV5XE3ZreHqWLSIsn3TKp+OZ/ aOXEhWxCRwiFBuQici2GpLxCwQLUHkzs21IWs+eKzciAWLYCVqthrNYchisUuG6ax7oa E97TyeeVvEizisyb2rOr66HIrFQPTj54N3jOrbEJ+fs08bZ4OACdvyXGtB9STgiOlwL5 XUshdQ+mO++uthE94mwIOTqYN7s66yVVgEenduEaomUhaxE2kN94u6t63HnmvlTXl2l/ gBi1cyKJ1iGGUd/IvwFSvp0iF4QzR7L/IFLXcTxXWxGPdn9xYOevnPSD5CRGJg8XEUCZ g97A== X-Received: by 10.60.78.9 with SMTP id x9mr199870oew.72.1386751625386; Wed, 11 Dec 2013 00:47:05 -0800 (PST) Received: from localhost ([202.108.130.138]) by mx.google.com with ESMTPSA id z5sm27407056obg.13.2013.12.11.00.47.03 for (version=TLSv1.2 cipher=RC4-SHA bits=128/128); Wed, 11 Dec 2013 00:47:04 -0800 (PST) From: Liu Ping Fan To: linuxppc-dev@lists.ozlabs.org, kvm-ppc@vger.kernel.org Subject: [PATCH 2/4] powernv: kvm: make _PAGE_NUMA take effect Date: Wed, 11 Dec 2013 16:47:52 +0800 Message-Id: <1386751674-14136-3-git-send-email-pingfank@linux.vnet.ibm.com> X-Mailer: git-send-email 1.8.1.4 In-Reply-To: <1386751674-14136-1-git-send-email-pingfank@linux.vnet.ibm.com> References: <1386751674-14136-1-git-send-email-pingfank@linux.vnet.ibm.com> Cc: Paul Mackerras , "Aneesh Kumar K.V" , Alexander Graf X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.16 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" To make _PAGE_NUMA take effect, we should force the checking when guest uses hypercall to setup hpte. Signed-off-by: Liu Ping Fan --- arch/powerpc/kvm/book3s_hv_rm_mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c index 9c51544..af8602d 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c +++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c @@ -232,7 +232,7 @@ long kvmppc_do_h_enter(struct kvm *kvm, unsigned long flags, /* Look up the Linux PTE for the backing page */ pte_size = psize; pte = lookup_linux_pte(pgdir, hva, writing, &pte_size); - if (pte_present(pte)) { + if (pte_present(pte) && !pte_numa(pte)) { if (writing && !pte_write(pte)) /* make the actual HPTE be read-only */ ptel = hpte_make_readonly(ptel);