[PATCH v5 3/6] KVM: arm64: Add mm_ops member for structure stage2_attr_data

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 v5 3/6] KVM: arm64: Add mm_ops member for structure stage2_attr_data
Date: Thu, 15 Apr 2021 19:50:29 +0800	[thread overview]
Message-ID: <20210415115032.35760-4-wangyanan55@huawei.com> (raw)
In-Reply-To: <20210415115032.35760-1-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 address transformation.

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 e3606c9dcec7..b480f6d1171e 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -869,10 +869,11 @@ 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,
@@ -911,6 +912,7 @@ 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

