From: Marc Zyngier <marc.zyngier@arm.com>
To: Christoffer Dall <christoffer.dall@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
kvmarm@lists.cs.columbia.edu
Subject: [PATCH v3 5/9] arm64: KVM: PTE/PMD S2 XN bit definition
Date: Mon, 23 Oct 2017 17:11:18 +0100 [thread overview]
Message-ID: <20171023161122.15291-6-marc.zyngier@arm.com> (raw)
In-Reply-To: <20171023161122.15291-1-marc.zyngier@arm.com>
As we're about to make S2 page-tables eXecute Never by default,
add the required bits for both PMDs and PTEs.
Reviewed-by: Christoffer Dall <christoffer.dall@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
arch/arm64/include/asm/pgtable-hwdef.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/arm64/include/asm/pgtable-hwdef.h b/arch/arm64/include/asm/pgtable-hwdef.h
index eb0c2bd90de9..af035331fb09 100644
--- a/arch/arm64/include/asm/pgtable-hwdef.h
+++ b/arch/arm64/include/asm/pgtable-hwdef.h
@@ -177,9 +177,11 @@
*/
#define PTE_S2_RDONLY (_AT(pteval_t, 1) << 6) /* HAP[2:1] */
#define PTE_S2_RDWR (_AT(pteval_t, 3) << 6) /* HAP[2:1] */
+#define PTE_S2_XN (_AT(pteval_t, 2) << 53) /* XN[1:0] */
#define PMD_S2_RDONLY (_AT(pmdval_t, 1) << 6) /* HAP[2:1] */
#define PMD_S2_RDWR (_AT(pmdval_t, 3) << 6) /* HAP[2:1] */
+#define PMD_S2_XN (_AT(pmdval_t, 2) << 53) /* XN[1:0] */
/*
* Memory Attribute override for Stage-2 (MemAttr[3:0])
--
2.11.0
next prev parent reply other threads:[~2017-10-23 16:11 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-23 16:11 [PATCH v3 0/9] arm/arm64: KVM: limit icache invalidation to prefetch aborts Marc Zyngier
2017-10-23 16:11 ` [PATCH v3 1/9] KVM: arm/arm64: Detangle kvm_mmu.h from kvm_hyp.h Marc Zyngier
2017-10-23 16:11 ` [PATCH v3 2/9] KVM: arm/arm64: Split dcache/icache flushing Marc Zyngier
2017-10-23 16:11 ` [PATCH v3 3/9] arm64: KVM: Add invalidate_icache_range helper Marc Zyngier
2017-10-23 16:19 ` Will Deacon
2017-10-23 16:11 ` [PATCH v3 4/9] arm: KVM: Add optimized PIPT icache flushing Marc Zyngier
2017-10-23 16:11 ` Marc Zyngier [this message]
2017-10-23 16:11 ` [PATCH v3 6/9] KVM: arm/arm64: Limit icache invalidation to prefetch aborts Marc Zyngier
2017-11-01 10:17 ` Andrew Jones
2017-11-02 10:36 ` Marc Zyngier
2017-11-02 13:13 ` Andrew Jones
2017-10-23 16:11 ` [PATCH v3 7/9] KVM: arm/arm64: Only clean the dcache on translation fault Marc Zyngier
2018-08-21 13:35 ` Alexander Graf
2018-08-21 13:42 ` Alexander Graf
2018-08-21 13:57 ` Marc Zyngier
2018-08-21 14:08 ` Alexander Graf
2018-08-21 15:08 ` Marc Zyngier
2018-08-21 16:54 ` Alexander Graf
2018-08-23 11:16 ` Marc Zyngier
2018-08-23 12:24 ` Alexander Graf
2018-08-23 12:43 ` Marc Zyngier
2018-09-01 10:03 ` Alexander Graf
2018-08-21 16:45 ` Alexander Graf
2017-10-23 16:11 ` [PATCH v3 8/9] KVM: arm/arm64: Preserve Exec permission across R/W permission faults Marc Zyngier
2017-10-23 16:11 ` [PATCH v3 9/9] KVM: arm/arm64: Drop vcpu parameter from guest cache maintenance operartions Marc Zyngier
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