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From: Marc Zyngier <maz@kernel.org>
To: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org
Cc: Joey Gouly <joey.gouly@arm.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Oliver Upton <oupton@kernel.org>,
	Zenghui Yu <yuzenghui@huawei.com>, Fuad Tabba <tabba@google.com>,
	Will Deacon <will@kernel.org>,
	Quentin Perret <qperret@google.com>
Subject: [PATCH 10/17] KVM: arm64: Kill logging_active from kvm_s2_fault
Date: Mon, 16 Mar 2026 17:54:43 +0000	[thread overview]
Message-ID: <20260316175451.1866175-11-maz@kernel.org> (raw)
In-Reply-To: <20260316175451.1866175-1-maz@kernel.org>

There are only two spots where we evaluate whether logging is
active. Replace the boolean with calls to the relevant helper.

Signed-off-by: Marc Zyngier <maz@kernel.org>
---
 arch/arm64/kvm/mmu.c | 10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index a5b0dd41560f6..caa5bedc79e19 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -1723,7 +1723,6 @@ struct kvm_s2_fault {
 	bool writable;
 	bool s2_force_noncacheable;
 	kvm_pfn_t pfn;
-	bool logging_active;
 	bool force_pte;
 	enum kvm_pgtable_prot prot;
 	struct page *page;
@@ -1853,7 +1852,7 @@ static int kvm_s2_fault_compute_prot(const struct kvm_s2_fault_desc *s2fd,
 			 */
 			fault->s2_force_noncacheable = true;
 		}
-	} else if (fault->logging_active && !kvm_is_write_fault(s2fd->vcpu)) {
+	} else if (memslot_is_logging(s2fd->memslot) && !kvm_is_write_fault(s2fd->vcpu)) {
 		/*
 		 * Only actually map the page as writable if this was a write
 		 * fault.
@@ -1985,11 +1984,9 @@ static int kvm_s2_fault_map(const struct kvm_s2_fault_desc *s2fd,
 static int user_mem_abort(const struct kvm_s2_fault_desc *s2fd)
 {
 	bool perm_fault = kvm_vcpu_trap_is_permission_fault(s2fd->vcpu);
-	bool logging_active = memslot_is_logging(s2fd->memslot);
 	struct kvm_s2_fault_vma_info s2vi = {};
 	struct kvm_s2_fault fault = {
-		.logging_active = logging_active,
-		.force_pte = logging_active,
+		.force_pte = memslot_is_logging(s2fd->memslot),
 		.prot = KVM_PGTABLE_PROT_R,
 	};
 	void *memcache;
@@ -2001,7 +1998,8 @@ static int user_mem_abort(const struct kvm_s2_fault_desc *s2fd)
 	 * only exception to this is when dirty logging is enabled at runtime
 	 * and a write fault needs to collapse a block entry into a table.
 	 */
-	if (!perm_fault || (logging_active && kvm_is_write_fault(s2fd->vcpu))) {
+	if (!perm_fault || (memslot_is_logging(s2fd->memslot) &&
+			    kvm_is_write_fault(s2fd->vcpu))) {
 		ret = prepare_mmu_memcache(s2fd->vcpu, true, &memcache);
 		if (ret)
 			return ret;
-- 
2.47.3


  parent reply	other threads:[~2026-03-16 17:55 UTC|newest]

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-03-16 17:54 [PATCH 00/17] KVM: arm64: More user_mem_abort() rework Marc Zyngier
2026-03-16 17:54 ` [PATCH 01/17] KVM: arm64: Kill fault->ipa Marc Zyngier
2026-03-17  9:22   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 02/17] KVM: arm64: Make fault_ipa immutable Marc Zyngier
2026-03-17  9:38   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 03/17] KVM: arm64: Move fault context to const structure Marc Zyngier
2026-03-17 10:26   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 04/17] KVM: arm64: Replace fault_is_perm with a helper Marc Zyngier
2026-03-17 10:49   ` Fuad Tabba
2026-03-18 13:43   ` Joey Gouly
2026-03-16 17:54 ` [PATCH 05/17] KVM: arm64: Constrain fault_granule to kvm_s2_fault_map() Marc Zyngier
2026-03-17 11:04   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 06/17] KVM: arm64: Kill write_fault from kvm_s2_fault Marc Zyngier
2026-03-17 11:20   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 07/17] KVM: arm64: Kill exec_fault " Marc Zyngier
2026-03-17 11:44   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 08/17] KVM: arm64: Kill topup_memcache " Marc Zyngier
2026-03-17 12:12   ` Fuad Tabba
2026-03-17 13:31     ` Marc Zyngier
2026-03-16 17:54 ` [PATCH 09/17] KVM: arm64: Move VMA-related information to kvm_s2_fault_vma_info Marc Zyngier
2026-03-17 12:51   ` Fuad Tabba
2026-03-18 14:22   ` Joey Gouly
2026-03-18 16:14     ` Fuad Tabba
2026-03-21  9:50       ` Marc Zyngier
2026-03-16 17:54 ` Marc Zyngier [this message]
2026-03-17 13:23   ` [PATCH 10/17] KVM: arm64: Kill logging_active from kvm_s2_fault Fuad Tabba
2026-03-16 17:54 ` [PATCH 11/17] KVM: arm64: Restrict the scope of the 'writable' attribute Marc Zyngier
2026-03-17 13:55   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 12/17] KVM: arm64: Move kvm_s2_fault.{pfn,page} to kvm_s2_vma_info Marc Zyngier
2026-03-17 14:24   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 13/17] KVM: arm64: Replace force_pte with a max_map_size attribute Marc Zyngier
2026-03-17 15:08   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 14/17] KVM: arm64: Move device mapping management into kvm_s2_fault_pin_pfn() Marc Zyngier
2026-03-17 15:41   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 15/17] KVM: arm64: Directly expose mapping prot and kill kvm_s2_fault Marc Zyngier
2026-03-17 16:14   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 16/17] KVM: arm64: Simplify integration of adjust_nested_*_perms() Marc Zyngier
2026-03-17 16:45   ` Fuad Tabba
2026-03-16 17:54 ` [PATCH 17/17] KVM: arm64: Convert gmem_abort() to struct kvm_s2_fault_desc Marc Zyngier
2026-03-17 17:58   ` Fuad Tabba
2026-03-16 19:45 ` [PATCH 00/17] KVM: arm64: More user_mem_abort() rework Fuad Tabba
2026-03-16 20:26 ` Fuad Tabba
2026-03-16 20:33   ` Fuad Tabba
2026-03-17  8:23     ` Marc Zyngier
2026-03-17 17:50       ` Fuad Tabba
2026-03-17 18:02         ` Fuad Tabba
2026-03-17 17:03 ` Suzuki K Poulose

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