From: Bradley Morgan <include@grrlz.net>
To: Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>
Cc: 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>,
Quentin Perret <qperret@google.com>,
Vincent Donnefort <vdonnefort@google.com>,
Gavin Shan <gshan@redhat.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
linux-kernel@vger.kernel.org, Bradley Morgan <include@grrlz.net>
Subject: [PATCH v3 0/3] KVM: arm64: fix pKVM mapping cache corner cases
Date: Wed, 24 Jun 2026 16:00:25 +0000 [thread overview]
Message-ID: <20260624160028.15591-1-include@grrlz.net> (raw)
This is a standalone v3.
Patch 1 fixes pKVM cache maintenance for non cacheable mappings without
growing struct pkvm_mapping.
Patch 2 fixes a pKVM mapping cache topup bug on permission faults that
replace page mappings with a PMD mapping.
Patch 3 fixes the generic dirty logging case where a permission fault
can still need a page table allocation to split a block mapping.
Changes in v3:
- Send as a standalone series with a cover letter.
- Store the pKVM cacheable bit in nr_pages instead of adding a bool.
- Drop stable from patch 1.
- Add patch 3 for dirty logging permission faults.
Changes in v2:
- Add patch 2 for the pKVM permission fault mapping cache bug.
Bradley Morgan (3):
KVM: arm64: skip pKVM cache flushes for non cacheable mappings
KVM: arm64: top up pKVM mapping cache for permission faults
KVM: arm64: top up stage 2 memcache for dirty logging faults
arch/arm64/kvm/mmu.c | 32 +++++++++++++++++++--------
arch/arm64/kvm/pkvm.c | 51 ++++++++++++++++++++++++++++++++++---------
2 files changed, 64 insertions(+), 19 deletions(-)
--
2.53.0
next reply other threads:[~2026-06-24 16:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-06-24 16:00 Bradley Morgan [this message]
2026-06-24 16:00 ` [PATCH v3 1/3] KVM: arm64: skip pKVM cache flushes for non cacheable mappings Bradley Morgan
2026-06-24 16:00 ` [PATCH v3 2/3] KVM: arm64: top up pKVM mapping cache for permission faults Bradley Morgan
2026-06-24 16:00 ` [PATCH v3 3/3] KVM: arm64: top up stage 2 memcache for dirty logging faults Bradley Morgan
2026-06-24 17:39 ` Bradley Morgan
2026-06-24 17:46 ` Bradley Morgan
2026-06-24 18:25 ` Marc Zyngier
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