linux-kernel - [PATCH] kvm: arm64: Properly align the end address of table walk

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Message-ID: <20210115095307.12912-1-zhukeqian1@huawei.com>
Date:   Fri, 15 Jan 2021 17:53:07 +0800
From:   Keqian Zhu <zhukeqian1@...wei.com>
To:     <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <kvm@...r.kernel.org>,
        <kvmarm@...ts.cs.columbia.edu>, Will Deacon <will@...nel.org>,
        Marc Zyngier <maz@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>
CC:     Mark Rutland <mark.rutland@....com>,
        James Morse <james.morse@....com>,
        Robin Murphy <robin.murphy@....com>,
        Joerg Roedel <joro@...tes.org>,
        "Daniel Lezcano" <daniel.lezcano@...aro.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Julien Thierry <julien.thierry.kdev@...il.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Alexios Zavras <alexios.zavras@...el.com>,
        <wanghaibin.wang@...wei.com>, <jiangkunkun@...wei.com>
Subject: [PATCH] kvm: arm64: Properly align the end address of table walk

When align the end address, ought to use its original value.

Fixes: b1e57de62cfb ("KVM: arm64: Add stand-alone page-table walker infrastructure")
Signed-off-by: Keqian Zhu <zhukeqian1@...wei.com>
---
 arch/arm64/kvm/hyp/pgtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm64/kvm/hyp/pgtable.c b/arch/arm64/kvm/hyp/pgtable.c
index bdf8e55ed308..670b0ef12440 100644
--- a/arch/arm64/kvm/hyp/pgtable.c
+++ b/arch/arm64/kvm/hyp/pgtable.c
@@ -296,7 +296,7 @@ int kvm_pgtable_walk(struct kvm_pgtable *pgt, u64 addr, u64 size,
 	struct kvm_pgtable_walk_data walk_data = {
 		.pgt	= pgt,
 		.addr	= ALIGN_DOWN(addr, PAGE_SIZE),
-		.end	= PAGE_ALIGN(walk_data.addr + size),
+		.end	= PAGE_ALIGN(addr + size),
 		.walker	= walker,
 	};
 
-- 
2.19.1