From patchwork Mon May 6 07:25:52 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alexey Kardashevskiy X-Patchwork-Id: 241598 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id 9A3AE2C00EF for ; Mon, 6 May 2013 17:34:08 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753258Ab3EFHeI (ORCPT ); Mon, 6 May 2013 03:34:08 -0400 Received: from mail-gg0-f178.google.com ([209.85.161.178]:61759 "EHLO mail-gg0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753296Ab3EFHeH (ORCPT ); Mon, 6 May 2013 03:34:07 -0400 X-Greylist: delayed 451 seconds by postgrey-1.27 at vger.kernel.org; Mon, 06 May 2013 03:34:07 EDT Received: by mail-gg0-f178.google.com with SMTP id l2so603602ggn.37 for ; Mon, 06 May 2013 00:34:06 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20120113; h=x-received:from:to:cc:subject:date:message-id:x-mailer:in-reply-to :references:x-gm-message-state; bh=+byKSd2mMpsXQfESQBDGT4Ya+o3rioS5WXVYfY3xEcY=; b=dtlDZdp83YOoQhlpDAujyDmPFkUeAuOFeaHVqA3IUuO91oUm/4/iADw6eKCyDhR/9f odtWcwjVStB+aJbS1ys2kImFa8DthYGdYRbwTGFNw9jps85VzmAr7fcfHhy9TNL+O5rZ HWGu7ax6dapqsnMSwIEsq7fJ5VgtY4f91wXZJlAKnGcubsI8sPQ+CHcGid4izL3F/7zR H4RmGn3w3ViIVPKjggHgARpBjoV0AUPoMoJckyZyhqpIHN/Lt5C6n+Jwf9Z3IOLrgA+1 84Rz1N6OqMuwh/Ok+vVDmJD6iC0s9vBqQMnQ2GQxZ66iMnQNb2Nn9LCc48BNmyFkO9Gg gsIw== X-Received: by 10.236.231.136 with SMTP id l8mr9147434yhq.124.1367825173424; Mon, 06 May 2013 00:26:13 -0700 (PDT) Received: from ka1.ozlabs.ibm.com (ibmaus65.lnk.telstra.net. [165.228.126.9]) by mx.google.com with ESMTPSA id a66sm37294534yhq.19.2013.05.06.00.26.07 for (version=TLSv1.2 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Mon, 06 May 2013 00:26:11 -0700 (PDT) From: Alexey Kardashevskiy To: linuxppc-dev@lists.ozlabs.org Cc: Alexey Kardashevskiy , David Gibson , Benjamin Herrenschmidt , Alexander Graf , Paul Mackerras , Joerg Roedel , Alex Williamson , kvm@vger.kernel.org, kvm-ppc@vger.kernel.org Subject: [PATCH 1/6] KVM: PPC: Make lookup_linux_pte public Date: Mon, 6 May 2013 17:25:52 +1000 Message-Id: <1367825157-27231-2-git-send-email-aik@ozlabs.ru> X-Mailer: git-send-email 1.7.10.4 In-Reply-To: <1367825157-27231-1-git-send-email-aik@ozlabs.ru> References: <1367825157-27231-1-git-send-email-aik@ozlabs.ru> X-Gm-Message-State: ALoCoQlfhPN5XfAePh48/kLZJ732u+6bZdKmyzbp7BynDjLVCuibvdMJJMck7O5J3aZili3ERZFK Sender: kvm-ppc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm-ppc@vger.kernel.org The lookup_linux_pte() function returns a linux PTE which is needed in the process of converting KVM guest physical address into host real address in real mode. This conversion will be used by upcoming support of H_PUT_TCE_INDIRECT, as the TCE list address comes from the guest and is a guest physical address. This makes lookup_linux_pte() public so that code can call it. Signed-off-by: Alexey Kardashevskiy Cc: David Gibson Signed-off-by: Paul Mackerras --- arch/powerpc/include/asm/kvm_ppc.h | 3 +++ arch/powerpc/kvm/book3s_hv_rm_mmu.c | 5 +++-- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/include/asm/kvm_ppc.h b/arch/powerpc/include/asm/kvm_ppc.h index 41426c9..99da298 100644 --- a/arch/powerpc/include/asm/kvm_ppc.h +++ b/arch/powerpc/include/asm/kvm_ppc.h @@ -379,4 +379,7 @@ static inline ulong kvmppc_get_ea_indexed(struct kvm_vcpu *vcpu, int ra, int rb) return ea; } +pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva, + int writing, unsigned long *pte_sizep); + #endif /* __POWERPC_KVM_PPC_H__ */ diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c index 6dcbb49..18fc382 100644 --- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c +++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c @@ -134,8 +134,8 @@ static void remove_revmap_chain(struct kvm *kvm, long pte_index, unlock_rmap(rmap); } -static pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva, - int writing, unsigned long *pte_sizep) +pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva, + int writing, unsigned long *pte_sizep) { pte_t *ptep; unsigned long ps = *pte_sizep; @@ -154,6 +154,7 @@ static pte_t lookup_linux_pte(pgd_t *pgdir, unsigned long hva, return __pte(0); return kvmppc_read_update_linux_pte(ptep, writing); } +EXPORT_SYMBOL_GPL(lookup_linux_pte); static inline void unlock_hpte(unsigned long *hpte, unsigned long hpte_v) {