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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 v2 0/2] A couple of EL2 refcounts fixes
Date: Tue,  5 Oct 2021 10:01:40 +0100	[thread overview]
Message-ID: <20211005090155.734578-4-qperret@google.com> (raw)
In-Reply-To: <20211005090155.734578-1-qperret@google.com>

Hi all,

This is v2 of the series previously posted here:

https://lore.kernel.org/kvmarm/20211004090328.540941-1-qperret@google.com/

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.

Changes since v1:
 - applied Acked-by from Will;
 - better comment + commit message for patch 01 (Marc).

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 | 13 ++++++++++++-
 arch/arm64/kvm/hyp/nvhe/page_alloc.c  | 15 +++++++++++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

-- 
2.33.0.800.g4c38ced690-goog


WARNING: multiple messages have this Message-ID (diff)
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 v2 0/2] A couple of EL2 refcounts fixes
Date: Tue,  5 Oct 2021 10:01:40 +0100	[thread overview]
Message-ID: <20211005090155.734578-4-qperret@google.com> (raw)
In-Reply-To: <20211005090155.734578-1-qperret@google.com>

Hi all,

This is v2 of the series previously posted here:

https://lore.kernel.org/kvmarm/20211004090328.540941-1-qperret@google.com/

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.

Changes since v1:
 - applied Acked-by from Will;
 - better comment + commit message for patch 01 (Marc).

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 | 13 ++++++++++++-
 arch/arm64/kvm/hyp/nvhe/page_alloc.c  | 15 +++++++++++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

-- 
2.33.0.800.g4c38ced690-goog

_______________________________________________
kvmarm mailing list
kvmarm@lists.cs.columbia.edu
https://lists.cs.columbia.edu/mailman/listinfo/kvmarm

WARNING: multiple messages have this Message-ID (diff)
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 v2 0/2] A couple of EL2 refcounts fixes
Date: Tue,  5 Oct 2021 10:01:40 +0100	[thread overview]
Message-ID: <20211005090155.734578-4-qperret@google.com> (raw)
In-Reply-To: <20211005090155.734578-1-qperret@google.com>

Hi all,

This is v2 of the series previously posted here:

https://lore.kernel.org/kvmarm/20211004090328.540941-1-qperret@google.com/

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.

Changes since v1:
 - applied Acked-by from Will;
 - better comment + commit message for patch 01 (Marc).

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 | 13 ++++++++++++-
 arch/arm64/kvm/hyp/nvhe/page_alloc.c  | 15 +++++++++++++++
 3 files changed, 28 insertions(+), 1 deletion(-)

-- 
2.33.0.800.g4c38ced690-goog


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  parent reply	other threads:[~2021-10-05  9:02 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-05  9:01 [PATCH 0/2] A couple of EL2 refcounts fixes Quentin Perret
2021-10-05  9:01 ` Quentin Perret
2021-10-05  9:01 ` Quentin Perret
2021-10-05  9:01 ` [PATCH 1/2] KVM: arm64: Fix host stage-2 PGD refcount Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05  9:01 ` [PATCH 2/2] KVM: arm64: Report corrupted refcount at EL2 Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05  9:01 ` Quentin Perret [this message]
2021-10-05  9:01   ` [PATCH v2 0/2] A couple of EL2 refcounts fixes Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05 12:03   ` Marc Zyngier
2021-10-05 12:03     ` Marc Zyngier
2021-10-05 12:03     ` Marc Zyngier
2021-10-05  9:01 ` [PATCH v2 1/2] KVM: arm64: Fix host stage-2 PGD refcount Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05  9:01 ` [PATCH v2 2/2] KVM: arm64: Report corrupted refcount at EL2 Quentin Perret
2021-10-05  9:01   ` Quentin Perret
2021-10-05  9:01   ` Quentin Perret

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