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From: Yanan Wang <wangyanan55@huawei.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	"Quentin Perret" <qperret@google.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	<kvmarm@lists.cs.columbia.edu>,
	<linux-arm-kernel@lists.infradead.org>, <kvm@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	"Suzuki K Poulose" <suzuki.poulose@arm.com>,
	Gavin Shan <gshan@redhat.com>, <wanghaibin.wang@huawei.com>,
	<zhukeqian1@huawei.com>, <yuzenghui@huawei.com>,
	Yanan Wang <wangyanan55@huawei.com>
Subject: [PATCH v6 2/4] KVM: arm64: Introduce mm_ops member for structure stage2_attr_data
Date: Wed, 16 Jun 2021 17:51:58 +0800	[thread overview]
Message-ID: <20210616095200.38008-3-wangyanan55@huawei.com> (raw)
In-Reply-To: <20210616095200.38008-1-wangyanan55@huawei.com>

Also add a mm_ops member for structure stage2_attr_data, since we
will move I-cache maintenance for guest stage-2 to the permission
path and as a result will need mm_ops for some callbacks.

Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
---
 arch/arm64/kvm/hyp/pgtable.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index c37c1dc4feaf..d99789432b05 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -861,10 +861,11 @@ int kvm_pgtable_stage2_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size)
 }
 
 struct stage2_attr_data {
-	kvm_pte_t	attr_set;
-	kvm_pte_t	attr_clr;
-	kvm_pte_t	pte;
-	u32		level;
+	kvm_pte_t			attr_set;
+	kvm_pte_t			attr_clr;
+	kvm_pte_t			pte;
+	u32				level;
+	struct kvm_pgtable_mm_ops	*mm_ops;
 };
 
 static int stage2_attr_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
@@ -903,6 +904,7 @@ static int stage2_update_leaf_attrs(struct kvm_pgtable *pgt, u64 addr,
 	struct stage2_attr_data data = {
 		.attr_set	= attr_set & attr_mask,
 		.attr_clr	= attr_clr & attr_mask,
+		.mm_ops		= pgt->mm_ops,
 	};
 	struct kvm_pgtable_walker walker = {
 		.cb		= stage2_attr_walker,
-- 
2.23.0


WARNING: multiple messages have this Message-ID (diff)
From: Yanan Wang <wangyanan55@huawei.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	"Quentin Perret" <qperret@google.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	<kvmarm@lists.cs.columbia.edu>,
	<linux-arm-kernel@lists.infradead.org>, <kvm@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Subject: [PATCH v6 2/4] KVM: arm64: Introduce mm_ops member for structure stage2_attr_data
Date: Wed, 16 Jun 2021 17:51:58 +0800	[thread overview]
Message-ID: <20210616095200.38008-3-wangyanan55@huawei.com> (raw)
In-Reply-To: <20210616095200.38008-1-wangyanan55@huawei.com>

Also add a mm_ops member for structure stage2_attr_data, since we
will move I-cache maintenance for guest stage-2 to the permission
path and as a result will need mm_ops for some callbacks.

Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
---
 arch/arm64/kvm/hyp/pgtable.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index c37c1dc4feaf..d99789432b05 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -861,10 +861,11 @@ int kvm_pgtable_stage2_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size)
 }
 
 struct stage2_attr_data {
-	kvm_pte_t	attr_set;
-	kvm_pte_t	attr_clr;
-	kvm_pte_t	pte;
-	u32		level;
+	kvm_pte_t			attr_set;
+	kvm_pte_t			attr_clr;
+	kvm_pte_t			pte;
+	u32				level;
+	struct kvm_pgtable_mm_ops	*mm_ops;
 };
 
 static int stage2_attr_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
@@ -903,6 +904,7 @@ static int stage2_update_leaf_attrs(struct kvm_pgtable *pgt, u64 addr,
 	struct stage2_attr_data data = {
 		.attr_set	= attr_set & attr_mask,
 		.attr_clr	= attr_clr & attr_mask,
+		.mm_ops		= pgt->mm_ops,
 	};
 	struct kvm_pgtable_walker walker = {
 		.cb		= stage2_attr_walker,
-- 
2.23.0

_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
From: Yanan Wang <wangyanan55@huawei.com>
To: Marc Zyngier <maz@kernel.org>, Will Deacon <will@kernel.org>,
	"Quentin Perret" <qperret@google.com>,
	Alexandru Elisei <alexandru.elisei@arm.com>,
	<kvmarm@lists.cs.columbia.edu>,
	<linux-arm-kernel@lists.infradead.org>, <kvm@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Catalin Marinas <catalin.marinas@arm.com>,
	James Morse <james.morse@arm.com>,
	Julien Thierry <julien.thierry.kdev@gmail.com>,
	"Suzuki K Poulose" <suzuki.poulose@arm.com>,
	Gavin Shan <gshan@redhat.com>, <wanghaibin.wang@huawei.com>,
	<zhukeqian1@huawei.com>, <yuzenghui@huawei.com>,
	Yanan Wang <wangyanan55@huawei.com>
Subject: [PATCH v6 2/4] KVM: arm64: Introduce mm_ops member for structure stage2_attr_data
Date: Wed, 16 Jun 2021 17:51:58 +0800	[thread overview]
Message-ID: <20210616095200.38008-3-wangyanan55@huawei.com> (raw)
In-Reply-To: <20210616095200.38008-1-wangyanan55@huawei.com>

Also add a mm_ops member for structure stage2_attr_data, since we
will move I-cache maintenance for guest stage-2 to the permission
path and as a result will need mm_ops for some callbacks.

Signed-off-by: Yanan Wang <wangyanan55@huawei.com>
---
 arch/arm64/kvm/hyp/pgtable.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index c37c1dc4feaf..d99789432b05 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -861,10 +861,11 @@ int kvm_pgtable_stage2_unmap(struct kvm_pgtable *pgt, u64 addr, u64 size)
 }
 
 struct stage2_attr_data {
-	kvm_pte_t	attr_set;
-	kvm_pte_t	attr_clr;
-	kvm_pte_t	pte;
-	u32		level;
+	kvm_pte_t			attr_set;
+	kvm_pte_t			attr_clr;
+	kvm_pte_t			pte;
+	u32				level;
+	struct kvm_pgtable_mm_ops	*mm_ops;
 };
 
 static int stage2_attr_walker(u64 addr, u64 end, u32 level, kvm_pte_t *ptep,
@@ -903,6 +904,7 @@ static int stage2_update_leaf_attrs(struct kvm_pgtable *pgt, u64 addr,
 	struct stage2_attr_data data = {
 		.attr_set	= attr_set & attr_mask,
 		.attr_clr	= attr_clr & attr_mask,
+		.mm_ops		= pgt->mm_ops,
 	};
 	struct kvm_pgtable_walker walker = {
 		.cb		= stage2_attr_walker,
-- 
2.23.0


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2021-06-16  9:53 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-16  9:51 [PATCH v6 0/4] KVM: arm64: Improve efficiency of stage2 page table Yanan Wang
2021-06-16  9:51 ` Yanan Wang
2021-06-16  9:51 ` Yanan Wang
2021-06-16  9:51 ` [PATCH v6 1/4] KVM: arm64: Introduce cache maintenance callbacks for guest stage-2 Yanan Wang
2021-06-16  9:51   ` Yanan Wang
2021-06-16  9:51   ` Yanan Wang
2021-06-16 13:21   ` Marc Zyngier
2021-06-16 13:21     ` Marc Zyngier
2021-06-17  6:48     ` wangyanan (Y)
2021-06-17  6:48       ` wangyanan (Y)
2021-06-17  6:48       ` wangyanan (Y)
2021-06-17  8:03       ` Marc Zyngier
2021-06-17  8:03         ` Marc Zyngier
2021-06-17  8:03         ` Marc Zyngier
2021-06-17  8:22         ` wangyanan (Y)
2021-06-17  8:22           ` wangyanan (Y)
2021-06-17  8:22           ` wangyanan (Y)
2021-06-17  8:44           ` Marc Zyngier
2021-06-17  8:44             ` Marc Zyngier
2021-06-17  8:44             ` Marc Zyngier
2021-06-17  9:43             ` wangyanan (Y)
2021-06-17  9:43               ` wangyanan (Y)
2021-06-17  9:43               ` wangyanan (Y)
2021-06-17 10:43               ` Marc Zyngier
2021-06-17 10:43                 ` Marc Zyngier
2021-06-17 10:43                 ` Marc Zyngier
2021-06-18  8:50   ` Fuad Tabba
2021-06-18  8:50     ` Fuad Tabba
2021-06-18  8:50     ` Fuad Tabba
2021-06-16  9:51 ` Yanan Wang [this message]
2021-06-16  9:51   ` [PATCH v6 2/4] KVM: arm64: Introduce mm_ops member for structure stage2_attr_data Yanan Wang
2021-06-16  9:51   ` Yanan Wang
2021-06-16  9:51 ` [PATCH v6 3/4] KVM: arm64: Tweak parameters of guest cache maintenance functions Yanan Wang
2021-06-16  9:51   ` Yanan Wang
2021-06-16  9:51   ` Yanan Wang
2021-06-16  9:52 ` [PATCH v6 4/4] KVM: arm64: Move guest CMOs to the fault handlers Yanan Wang
2021-06-16  9:52   ` Yanan Wang
2021-06-16  9:52   ` Yanan Wang
2021-06-17  8:00   ` Marc Zyngier
2021-06-17  8:00     ` Marc Zyngier

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