Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756195AbcDDQas (ORCPT ); Mon, 4 Apr 2016 12:30:48 -0400 Received: from foss.arm.com ([217.140.101.70]:46437 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932490AbcDDQ07 (ORCPT ); Mon, 4 Apr 2016 12:26:59 -0400 From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Cc: linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu, kvm@vger.kernel.org, marc.zyngier@arm.com, christoffer.dall@linaro.org, mark.rutland@arm.com, will.deacon@arm.com, catalin.marinas@arm.com, Suzuki K Poulose Subject: [PATCH 08/17] kvm-arm: arm: Introduce hyp page table empty checks Date: Mon, 4 Apr 2016 17:26:08 +0100 Message-Id: <1459787177-12767-9-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1459787177-12767-1-git-send-email-suzuki.poulose@arm.com> References: <1459787177-12767-1-git-send-email-suzuki.poulose@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1008 Lines: 28 Introduce hyp_pxx_table_empty helpers for checking whether a given table entry is empty. This will be used explicitly once we switch to explicit routines for hyp page table walk. Cc: Marc Zyngier Cc: Christoffer Dall Signed-off-by: Suzuki K Poulose --- arch/arm/include/asm/kvm_mmu.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/arm/include/asm/kvm_mmu.h b/arch/arm/include/asm/kvm_mmu.h index 7d207b4..901c1ea 100644 --- a/arch/arm/include/asm/kvm_mmu.h +++ b/arch/arm/include/asm/kvm_mmu.h @@ -162,6 +162,10 @@ static inline bool kvm_page_empty(void *ptr) #define kvm_pmd_table_empty(kvm, pmdp) kvm_page_empty(pmdp) #define kvm_pud_table_empty(kvm, pudp) (0) +#define hyp_pte_table_empty(ptep) kvm_page_empty(ptep) +#define hyp_pmd_table_empty(pmdp) kvm_page_empty(pmdp) +#define hyp_pud_table_empty(pudp) (0) + static inline void *kvm_get_hwpgd(struct kvm *kvm) { return kvm->arch.pgd; -- 1.7.9.5