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From: Wei-Lin Chang <weilin.chang@arm.com>
To: linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
	linux-kernel@vger.kernel.org
Cc: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
	Fuad Tabba <tabba@google.com>, Joey Gouly <joey.gouly@arm.com>,
	Steffen Eiden <seiden@linux.ibm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will@kernel.org>,
	Itaru Kitayama <itaru.kitayama@fujitsu.com>,
	Sebastian Ene <sebastianene@google.com>,
	Wei-Lin Chang <weilin.chang@arm.com>
Subject: [PATCH v4 4/6] KVM: arm64: Refactor kvm_unmap_gfn_range() with common variables
Date: Tue, 14 Jul 2026 12:59:23 +0100	[thread overview]
Message-ID: <20260714115926.2044757-5-weilin.chang@arm.com> (raw)
In-Reply-To: <20260714115926.2044757-1-weilin.chang@arm.com>

__unmap_stage2_range() and kvm_unmap_cipa_range_nested() are using the
same arguments, clean this up by using local variables.

Signed-off-by: Wei-Lin Chang <weilin.chang@arm.com>
---
 arch/arm64/kvm/mmu.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index 73629aa1ade6..6bfc1fbc5387 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -2441,15 +2441,16 @@ int kvm_handle_guest_abort(struct kvm_vcpu *vcpu)
 
 bool kvm_unmap_gfn_range(struct kvm *kvm, struct kvm_gfn_range *range)
 {
+	gpa_t gpa = range->start << PAGE_SHIFT;
+	size_t size = (range->end - range->start) << PAGE_SHIFT;
+	bool may_block = range->may_block;
+
 	if (!kvm->arch.mmu.pgt || kvm_vm_is_protected(kvm))
 		return false;
 
-	__unmap_stage2_range(&kvm->arch.mmu, range->start << PAGE_SHIFT,
-			     (range->end - range->start) << PAGE_SHIFT,
-			     range->may_block);
-	kvm_unmap_cipa_range_nested(kvm, range->start << PAGE_SHIFT,
-				    (range->end - range->start) << PAGE_SHIFT,
-				    range->may_block);
+	__unmap_stage2_range(&kvm->arch.mmu, gpa, size, may_block);
+	kvm_unmap_cipa_range_nested(kvm, gpa, size, may_block);
+
 	return false;
 }
 
-- 
2.43.0



  parent reply	other threads:[~2026-07-14 12:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-07-14 11:59 [PATCH v4 0/6] KVM: arm64: nv: Implement nested stage-2 reverse map Wei-Lin Chang
2026-07-14 11:59 ` [PATCH v4 1/6] KVM: arm64: Use a variable for the canonical GPA in kvm_s2_fault_map() Wei-Lin Chang
2026-07-14 11:59 ` [PATCH v4 2/6] KVM: arm64: nv: Avoid full shadow s2 unmap Wei-Lin Chang
2026-07-16  7:05   ` Oliver Upton
2026-07-14 11:59 ` [PATCH v4 3/6] KVM: arm64: nv: Add nested revmap broken tracepoint Wei-Lin Chang
2026-07-16  6:45   ` Oliver Upton
2026-07-16  8:56     ` Marc Zyngier
2026-07-14 11:59 ` Wei-Lin Chang [this message]
2026-07-14 11:59 ` [PATCH v4 5/6] KVM: arm64: nv: Remove reverse map entries during TLBI handling Wei-Lin Chang
2026-07-14 11:59 ` [PATCH v4 6/6] KVM: arm64: nv: Create nested IPA direct map to speed up reverse map removal Wei-Lin Chang

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