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>,
Joey Gouly <joey.gouly@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Zenghui Yu <yuzenghui@huawei.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Wei-Lin Chang <weilin.chang@arm.com>
Subject: [PATCH v3 2/5] KVM: arm64: Move shadow_pt_debugfs_dentry to reduce holes in kvm_s2_mmu
Date: Sun, 10 May 2026 15:53:35 +0100 [thread overview]
Message-ID: <20260510145338.322962-3-weilin.chang@arm.com> (raw)
In-Reply-To: <20260510145338.322962-1-weilin.chang@arm.com>
dentry pointer shadow_pt_debugfs_dentry was placed between two booleans
in kvm_s2_mmu, which created unnecessary holes in the struct. Move it so
the two booleans connect.
Signed-off-by: Wei-Lin Chang <weilin.chang@arm.com>
---
arch/arm64/include/asm/kvm_host.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/arch/arm64/include/asm/kvm_host.h b/arch/arm64/include/asm/kvm_host.h
index 851f6171751c..1a56d137df10 100644
--- a/arch/arm64/include/asm/kvm_host.h
+++ b/arch/arm64/include/asm/kvm_host.h
@@ -217,16 +217,16 @@ struct kvm_s2_mmu {
*/
bool nested_stage2_enabled;
-#ifdef CONFIG_PTDUMP_STAGE2_DEBUGFS
- struct dentry *shadow_pt_debugfs_dentry;
-#endif
-
/*
* true when this MMU needs to be unmapped before being used for a new
* purpose.
*/
bool pending_unmap;
+#ifdef CONFIG_PTDUMP_STAGE2_DEBUGFS
+ struct dentry *shadow_pt_debugfs_dentry;
+#endif
+
/*
* 0: Nobody is currently using this, check vttbr for validity
* >0: Somebody is actively using this.
--
2.43.0
next prev parent reply other threads:[~2026-05-10 14:54 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-10 14:53 [PATCH v3 0/5] KVM: arm64: nv: Implement nested stage-2 reverse map Wei-Lin Chang
2026-05-10 14:53 ` [PATCH v3 1/5] KVM: arm64: Use a variable for the canonical GPA in kvm_s2_fault_map() Wei-Lin Chang
2026-05-10 14:53 ` Wei-Lin Chang [this message]
2026-05-10 14:53 ` [PATCH v3 3/5] KVM: arm64: nv: Avoid full shadow s2 unmap Wei-Lin Chang
2026-05-10 14:53 ` [PATCH v3 4/5] KVM: arm64: nv: Remove reverse map entries during TLBI handling Wei-Lin Chang
2026-05-10 14:53 ` [PATCH v3 5/5] KVM: arm64: nv: Create nested IPA direct map to speed up reverse map removal Wei-Lin Chang
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