From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932423AbcDNNV7 (ORCPT ); Thu, 14 Apr 2016 09:21:59 -0400 Received: from foss.arm.com ([217.140.101.70]:42573 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932356AbcDNNV4 (ORCPT ); Thu, 14 Apr 2016 09:21:56 -0400 From: Suzuki K Poulose To: linux-arm-kernel@lists.infradead.org Cc: kvm@vger.kernel.org, marc.zyngier@arm.com, christoffer.dall@linaro.org, mark.rutland@arm.com, will.deacon@arm.com, catalin.marinas@arm.com, linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu, Suzuki K Poulose Subject: [PATCH v2 10/17] kvm-arm: arm64: Introduce hyp page table empty checks Date: Thu, 14 Apr 2016 14:20:58 +0100 Message-Id: <1460640065-27658-11-git-send-email-suzuki.poulose@arm.com> X-Mailer: git-send-email 1.7.9.5 In-Reply-To: <1460640065-27658-1-git-send-email-suzuki.poulose@arm.com> References: <1460640065-27658-1-git-send-email-suzuki.poulose@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 Acked-by: Christoffer Dall Signed-off-by: Suzuki K Poulose --- arch/arm64/include/asm/kvm_mmu.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index e3f53e3..edf3c62 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -249,6 +249,20 @@ static inline bool kvm_page_empty(void *ptr) #endif +#define hyp_pte_table_empty(ptep) kvm_page_empty(ptep) + +#ifdef __PAGETABLE_PMD_FOLDED +#define hyp_pmd_table_empty(pmdp) (0) +#else +#define hyp_pmd_table_empty(pmdp) kvm_page_empty(pmdp) +#endif + +#ifdef __PAGETABLE_PUD_FOLDED +#define hyp_pud_table_empty(pudp) (0) +#else +#define hyp_pud_table_empty(pudp) kvm_page_empty(pudp) +#endif + struct kvm; #define kvm_flush_dcache_to_poc(a,l) __flush_dcache_area((a), (l)) -- 1.7.9.5 From mboxrd@z Thu Jan 1 00:00:00 1970 From: Suzuki K Poulose Subject: [PATCH v2 10/17] kvm-arm: arm64: Introduce hyp page table empty checks Date: Thu, 14 Apr 2016 14:20:58 +0100 Message-ID: <1460640065-27658-11-git-send-email-suzuki.poulose@arm.com> References: <1460640065-27658-1-git-send-email-suzuki.poulose@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: kvm@vger.kernel.org, marc.zyngier@arm.com, catalin.marinas@arm.com, will.deacon@arm.com, linux-kernel@vger.kernel.org, kvmarm@lists.cs.columbia.edu To: linux-arm-kernel@lists.infradead.org Return-path: In-Reply-To: <1460640065-27658-1-git-send-email-suzuki.poulose@arm.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: kvmarm-bounces@lists.cs.columbia.edu Sender: kvmarm-bounces@lists.cs.columbia.edu List-Id: kvm.vger.kernel.org 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 Acked-by: Christoffer Dall Signed-off-by: Suzuki K Poulose --- arch/arm64/include/asm/kvm_mmu.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index e3f53e3..edf3c62 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -249,6 +249,20 @@ static inline bool kvm_page_empty(void *ptr) #endif +#define hyp_pte_table_empty(ptep) kvm_page_empty(ptep) + +#ifdef __PAGETABLE_PMD_FOLDED +#define hyp_pmd_table_empty(pmdp) (0) +#else +#define hyp_pmd_table_empty(pmdp) kvm_page_empty(pmdp) +#endif + +#ifdef __PAGETABLE_PUD_FOLDED +#define hyp_pud_table_empty(pudp) (0) +#else +#define hyp_pud_table_empty(pudp) kvm_page_empty(pudp) +#endif + struct kvm; #define kvm_flush_dcache_to_poc(a,l) __flush_dcache_area((a), (l)) -- 1.7.9.5 From mboxrd@z Thu Jan 1 00:00:00 1970 From: suzuki.poulose@arm.com (Suzuki K Poulose) Date: Thu, 14 Apr 2016 14:20:58 +0100 Subject: [PATCH v2 10/17] kvm-arm: arm64: Introduce hyp page table empty checks In-Reply-To: <1460640065-27658-1-git-send-email-suzuki.poulose@arm.com> References: <1460640065-27658-1-git-send-email-suzuki.poulose@arm.com> Message-ID: <1460640065-27658-11-git-send-email-suzuki.poulose@arm.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org 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 Acked-by: Christoffer Dall Signed-off-by: Suzuki K Poulose --- arch/arm64/include/asm/kvm_mmu.h | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index e3f53e3..edf3c62 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -249,6 +249,20 @@ static inline bool kvm_page_empty(void *ptr) #endif +#define hyp_pte_table_empty(ptep) kvm_page_empty(ptep) + +#ifdef __PAGETABLE_PMD_FOLDED +#define hyp_pmd_table_empty(pmdp) (0) +#else +#define hyp_pmd_table_empty(pmdp) kvm_page_empty(pmdp) +#endif + +#ifdef __PAGETABLE_PUD_FOLDED +#define hyp_pud_table_empty(pudp) (0) +#else +#define hyp_pud_table_empty(pudp) kvm_page_empty(pudp) +#endif + struct kvm; #define kvm_flush_dcache_to_poc(a,l) __flush_dcache_area((a), (l)) -- 1.7.9.5