From: Quentin Perret <qperret@google.com>
To: Marc Zyngier <maz@kernel.org>, James Morse <james.morse@arm.com>,
Alexandru Elisei <alexandru.elisei@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Quentin Perret <qperret@google.com>,
Fuad Tabba <tabba@google.com>,
David Brazdil <dbrazdil@google.com>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org
Cc: kernel-team@android.com
Subject: [PATCH 0/2] A couple of EL2 refcounts fixes
Date: Mon, 4 Oct 2021 10:03:12 +0100 [thread overview]
Message-ID: <20211004090328.540941-1-qperret@google.com> (raw)
Hi all,
This addresses a couple of issues Will has found with the refcounting of
page-tables at EL2. Patch 01 fixes a nasty bug, and probably wants to go
in -stable. Patch 02 fixes a small inconsistency which made it harder to
find refcount-related bugs at EL2.
Feedback welcome !
Thanks,
Quentin
Quentin Perret (2):
KVM: arm64: Fix host stage-2 PGD refcount
KVM: arm64: Report corrupted refcount at EL2
arch/arm64/kvm/hyp/include/nvhe/gfp.h | 1 +
arch/arm64/kvm/hyp/nvhe/mem_protect.c | 6 +++++-
arch/arm64/kvm/hyp/nvhe/page_alloc.c | 15 +++++++++++++++
3 files changed, 21 insertions(+), 1 deletion(-)
--
2.33.0.800.g4c38ced690-goog
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next reply other threads:[~2021-10-04 9:03 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-10-04 9:03 Quentin Perret [this message]
2021-10-04 9:03 ` [PATCH 1/2] KVM: arm64: Fix host stage-2 PGD refcount Quentin Perret
2021-10-04 9:55 ` Marc Zyngier
2021-10-04 10:05 ` Quentin Perret
2021-10-04 9:03 ` [PATCH 2/2] KVM: arm64: Report corrupted refcount at EL2 Quentin Perret
2021-10-04 9:39 ` [PATCH 0/2] A couple of EL2 refcounts fixes Will Deacon
2021-10-05 9:01 Quentin Perret
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