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From: Quentin Perret <qperret@google.com>
To: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
	suzuki.poulose@arm.com, catalin.marinas@arm.com, will@kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu, linux-kernel@vger.kernel.org,
	ardb@kernel.org, qwandor@google.com, tabba@google.com,
	dbrazdil@google.com, kernel-team@android.com,
	Quentin Perret <qperret@google.com>
Subject: [PATCH v3 00/21] Track shared pages at EL2 in protected mode
Date: Thu, 29 Jul 2021 14:27:57 +0100	[thread overview]
Message-ID: <20210729132818.4091769-1-qperret@google.com> (raw)

Hi all,

This is v3 of the patch series previously posted here:

https://lore.kernel.org/kvmarm/20210726092905.2198501-1-qperret@google.com/

This series aims to improve how the nVHE hypervisor tracks ownership of
memory pages when running in protected mode ("kvm-arm.mode=protected" on
the kernel command line).

The main issue with the existing ownership tracking code is that it is
completely binary: a page is either owned by an entity (e.g. the host)
or not. However, we'll need something smarter to track shared pages, as
is needed for virtio, or even just host/hypervisor communications.

This series introduces a few changes to the kvm page-table library to
allow annotating shared pages in ignored bits (a.k.a. software bits) of
leaf entries, and makes use of that infrastructure to track all pages
that are shared between the host and the hypervisor. We will obviously
want to apply the same treatment to guest stage-2 page-tables, but that
is not really possible to do until EL2 manages them directly, so I'll
keep that for another series.

The series is based on the kvmarm/fixes branch, and has been tested on
AML-S905X-CC (Le Potato) and using various Qemu configurations.

Changes since v2:
 - Renamed and refactored the find_range() path for host memory aborts;
 - Added hyp_assert_lock_held() using Will's hyp_spin_is_locked()
   helper, and sprinkled a few of them throughout the series;
 - Changed how host stage-2 mappings are adjusted after __pkvm_init() by
   walking the hyp stage-1 instead of relying on the host calling
   __pkvm_mark_hyp.

Changes since v1:
 - Changed the 'share' hypercall to accept a single page at a time;
 - Dropped the patch allowing to continue stage-2 map when hitting the
   EAGAIN case;
 - Dropped some of the custom pgtable walkers and used Marc's get_leaf()
   patch instead;
 - Changed pgtable API to manipulate SW bits directly rather than
   specifying shared pages;
 - Added comments and documentations all over;
 - Cleanups and small refactoring.

Thanks,
Quentin

Marc Zyngier (1):
  KVM: arm64: Introduce helper to retrieve a PTE and its level

Quentin Perret (19):
  KVM: arm64: Introduce hyp_assert_lock_held()
  KVM: arm64: Provide the host_stage2_try() helper macro
  KVM: arm64: Expose page-table helpers
  KVM: arm64: Optimize host memory aborts
  KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED
  KVM: arm64: Don't overwrite software bits with owner id
  KVM: arm64: Tolerate re-creating hyp mappings to set software bits
  KVM: arm64: Enable forcing page-level stage-2 mappings
  KVM: arm64: Allow populating software bits
  KVM: arm64: Add helpers to tag shared pages in SW bits
  KVM: arm64: Expose host stage-2 manipulation helpers
  KVM: arm64: Expose pkvm_hyp_id
  KVM: arm64: Introduce addr_is_memory()
  KVM: arm64: Enable retrieving protections attributes of PTEs
  KVM: arm64: Mark host bss and rodata section as shared
  KVM: arm64: Remove __pkvm_mark_hyp
  KVM: arm64: Refactor protected nVHE stage-1 locking
  KVM: arm64: Restrict EL2 stage-1 changes in protected mode
  KVM: arm64: Make __pkvm_create_mappings static

Will Deacon (1):
  KVM: arm64: Add hyp_spin_is_locked() for basic locking assertions at
    EL2

 arch/arm64/include/asm/kvm_asm.h              |   5 +-
 arch/arm64/include/asm/kvm_pgtable.h          | 166 ++++++++----
 arch/arm64/kvm/Kconfig                        |   9 +
 arch/arm64/kvm/arm.c                          |  46 ----
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  33 ++-
 arch/arm64/kvm/hyp/include/nvhe/mm.h          |   3 +-
 arch/arm64/kvm/hyp/include/nvhe/spinlock.h    |  25 ++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  20 +-
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 221 ++++++++++++++--
 arch/arm64/kvm/hyp/nvhe/mm.c                  |  22 +-
 arch/arm64/kvm/hyp/nvhe/setup.c               |  82 +++++-
 arch/arm64/kvm/hyp/pgtable.c                  | 247 +++++++++---------
 arch/arm64/kvm/mmu.c                          |  28 +-
 13 files changed, 625 insertions(+), 282 deletions(-)

-- 
2.32.0.432.gabb21c7263-goog


WARNING: multiple messages have this Message-ID
From: Quentin Perret <qperret@google.com>
To: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
	 suzuki.poulose@arm.com, catalin.marinas@arm.com,
	will@kernel.org
Cc: qwandor@google.com, linux-kernel@vger.kernel.org,
	kvmarm@lists.cs.columbia.edu,
	linux-arm-kernel@lists.infradead.org, kernel-team@android.com
Subject: [PATCH v3 00/21] Track shared pages at EL2 in protected mode
Date: Thu, 29 Jul 2021 14:27:57 +0100	[thread overview]
Message-ID: <20210729132818.4091769-1-qperret@google.com> (raw)

Hi all,

This is v3 of the patch series previously posted here:

https://lore.kernel.org/kvmarm/20210726092905.2198501-1-qperret@google.com/

This series aims to improve how the nVHE hypervisor tracks ownership of
memory pages when running in protected mode ("kvm-arm.mode=protected" on
the kernel command line).

The main issue with the existing ownership tracking code is that it is
completely binary: a page is either owned by an entity (e.g. the host)
or not. However, we'll need something smarter to track shared pages, as
is needed for virtio, or even just host/hypervisor communications.

This series introduces a few changes to the kvm page-table library to
allow annotating shared pages in ignored bits (a.k.a. software bits) of
leaf entries, and makes use of that infrastructure to track all pages
that are shared between the host and the hypervisor. We will obviously
want to apply the same treatment to guest stage-2 page-tables, but that
is not really possible to do until EL2 manages them directly, so I'll
keep that for another series.

The series is based on the kvmarm/fixes branch, and has been tested on
AML-S905X-CC (Le Potato) and using various Qemu configurations.

Changes since v2:
 - Renamed and refactored the find_range() path for host memory aborts;
 - Added hyp_assert_lock_held() using Will's hyp_spin_is_locked()
   helper, and sprinkled a few of them throughout the series;
 - Changed how host stage-2 mappings are adjusted after __pkvm_init() by
   walking the hyp stage-1 instead of relying on the host calling
   __pkvm_mark_hyp.

Changes since v1:
 - Changed the 'share' hypercall to accept a single page at a time;
 - Dropped the patch allowing to continue stage-2 map when hitting the
   EAGAIN case;
 - Dropped some of the custom pgtable walkers and used Marc's get_leaf()
   patch instead;
 - Changed pgtable API to manipulate SW bits directly rather than
   specifying shared pages;
 - Added comments and documentations all over;
 - Cleanups and small refactoring.

Thanks,
Quentin

Marc Zyngier (1):
  KVM: arm64: Introduce helper to retrieve a PTE and its level

Quentin Perret (19):
  KVM: arm64: Introduce hyp_assert_lock_held()
  KVM: arm64: Provide the host_stage2_try() helper macro
  KVM: arm64: Expose page-table helpers
  KVM: arm64: Optimize host memory aborts
  KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED
  KVM: arm64: Don't overwrite software bits with owner id
  KVM: arm64: Tolerate re-creating hyp mappings to set software bits
  KVM: arm64: Enable forcing page-level stage-2 mappings
  KVM: arm64: Allow populating software bits
  KVM: arm64: Add helpers to tag shared pages in SW bits
  KVM: arm64: Expose host stage-2 manipulation helpers
  KVM: arm64: Expose pkvm_hyp_id
  KVM: arm64: Introduce addr_is_memory()
  KVM: arm64: Enable retrieving protections attributes of PTEs
  KVM: arm64: Mark host bss and rodata section as shared
  KVM: arm64: Remove __pkvm_mark_hyp
  KVM: arm64: Refactor protected nVHE stage-1 locking
  KVM: arm64: Restrict EL2 stage-1 changes in protected mode
  KVM: arm64: Make __pkvm_create_mappings static

Will Deacon (1):
  KVM: arm64: Add hyp_spin_is_locked() for basic locking assertions at
    EL2

 arch/arm64/include/asm/kvm_asm.h              |   5 +-
 arch/arm64/include/asm/kvm_pgtable.h          | 166 ++++++++----
 arch/arm64/kvm/Kconfig                        |   9 +
 arch/arm64/kvm/arm.c                          |  46 ----
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  33 ++-
 arch/arm64/kvm/hyp/include/nvhe/mm.h          |   3 +-
 arch/arm64/kvm/hyp/include/nvhe/spinlock.h    |  25 ++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  20 +-
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 221 ++++++++++++++--
 arch/arm64/kvm/hyp/nvhe/mm.c                  |  22 +-
 arch/arm64/kvm/hyp/nvhe/setup.c               |  82 +++++-
 arch/arm64/kvm/hyp/pgtable.c                  | 247 +++++++++---------
 arch/arm64/kvm/mmu.c                          |  28 +-
 13 files changed, 625 insertions(+), 282 deletions(-)

-- 
2.32.0.432.gabb21c7263-goog

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

WARNING: multiple messages have this Message-ID
From: Quentin Perret <qperret@google.com>
To: maz@kernel.org, james.morse@arm.com, alexandru.elisei@arm.com,
	 suzuki.poulose@arm.com, catalin.marinas@arm.com,
	will@kernel.org
Cc: linux-arm-kernel@lists.infradead.org,
	kvmarm@lists.cs.columbia.edu,  linux-kernel@vger.kernel.org,
	ardb@kernel.org, qwandor@google.com,  tabba@google.com,
	dbrazdil@google.com, kernel-team@android.com,
	 Quentin Perret <qperret@google.com>
Subject: [PATCH v3 00/21] Track shared pages at EL2 in protected mode
Date: Thu, 29 Jul 2021 14:27:57 +0100	[thread overview]
Message-ID: <20210729132818.4091769-1-qperret@google.com> (raw)

Hi all,

This is v3 of the patch series previously posted here:

https://lore.kernel.org/kvmarm/20210726092905.2198501-1-qperret@google.com/

This series aims to improve how the nVHE hypervisor tracks ownership of
memory pages when running in protected mode ("kvm-arm.mode=protected" on
the kernel command line).

The main issue with the existing ownership tracking code is that it is
completely binary: a page is either owned by an entity (e.g. the host)
or not. However, we'll need something smarter to track shared pages, as
is needed for virtio, or even just host/hypervisor communications.

This series introduces a few changes to the kvm page-table library to
allow annotating shared pages in ignored bits (a.k.a. software bits) of
leaf entries, and makes use of that infrastructure to track all pages
that are shared between the host and the hypervisor. We will obviously
want to apply the same treatment to guest stage-2 page-tables, but that
is not really possible to do until EL2 manages them directly, so I'll
keep that for another series.

The series is based on the kvmarm/fixes branch, and has been tested on
AML-S905X-CC (Le Potato) and using various Qemu configurations.

Changes since v2:
 - Renamed and refactored the find_range() path for host memory aborts;
 - Added hyp_assert_lock_held() using Will's hyp_spin_is_locked()
   helper, and sprinkled a few of them throughout the series;
 - Changed how host stage-2 mappings are adjusted after __pkvm_init() by
   walking the hyp stage-1 instead of relying on the host calling
   __pkvm_mark_hyp.

Changes since v1:
 - Changed the 'share' hypercall to accept a single page at a time;
 - Dropped the patch allowing to continue stage-2 map when hitting the
   EAGAIN case;
 - Dropped some of the custom pgtable walkers and used Marc's get_leaf()
   patch instead;
 - Changed pgtable API to manipulate SW bits directly rather than
   specifying shared pages;
 - Added comments and documentations all over;
 - Cleanups and small refactoring.

Thanks,
Quentin

Marc Zyngier (1):
  KVM: arm64: Introduce helper to retrieve a PTE and its level

Quentin Perret (19):
  KVM: arm64: Introduce hyp_assert_lock_held()
  KVM: arm64: Provide the host_stage2_try() helper macro
  KVM: arm64: Expose page-table helpers
  KVM: arm64: Optimize host memory aborts
  KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED
  KVM: arm64: Don't overwrite software bits with owner id
  KVM: arm64: Tolerate re-creating hyp mappings to set software bits
  KVM: arm64: Enable forcing page-level stage-2 mappings
  KVM: arm64: Allow populating software bits
  KVM: arm64: Add helpers to tag shared pages in SW bits
  KVM: arm64: Expose host stage-2 manipulation helpers
  KVM: arm64: Expose pkvm_hyp_id
  KVM: arm64: Introduce addr_is_memory()
  KVM: arm64: Enable retrieving protections attributes of PTEs
  KVM: arm64: Mark host bss and rodata section as shared
  KVM: arm64: Remove __pkvm_mark_hyp
  KVM: arm64: Refactor protected nVHE stage-1 locking
  KVM: arm64: Restrict EL2 stage-1 changes in protected mode
  KVM: arm64: Make __pkvm_create_mappings static

Will Deacon (1):
  KVM: arm64: Add hyp_spin_is_locked() for basic locking assertions at
    EL2

 arch/arm64/include/asm/kvm_asm.h              |   5 +-
 arch/arm64/include/asm/kvm_pgtable.h          | 166 ++++++++----
 arch/arm64/kvm/Kconfig                        |   9 +
 arch/arm64/kvm/arm.c                          |  46 ----
 arch/arm64/kvm/hyp/include/nvhe/mem_protect.h |  33 ++-
 arch/arm64/kvm/hyp/include/nvhe/mm.h          |   3 +-
 arch/arm64/kvm/hyp/include/nvhe/spinlock.h    |  25 ++
 arch/arm64/kvm/hyp/nvhe/hyp-main.c            |  20 +-
 arch/arm64/kvm/hyp/nvhe/mem_protect.c         | 221 ++++++++++++++--
 arch/arm64/kvm/hyp/nvhe/mm.c                  |  22 +-
 arch/arm64/kvm/hyp/nvhe/setup.c               |  82 +++++-
 arch/arm64/kvm/hyp/pgtable.c                  | 247 +++++++++---------
 arch/arm64/kvm/mmu.c                          |  28 +-
 13 files changed, 625 insertions(+), 282 deletions(-)

-- 
2.32.0.432.gabb21c7263-goog


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

             reply	other threads:[~2021-07-29 13:28 UTC|newest]

Thread overview: 135+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-29 13:27 Quentin Perret [this message]
2021-07-29 13:27 ` Quentin Perret
2021-07-29 13:27 ` Quentin Perret
2021-07-29 13:27 ` [PATCH v3 01/21] KVM: arm64: Add hyp_spin_is_locked() for basic locking assertions at EL2 Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:27 ` [PATCH v3 02/21] KVM: arm64: Introduce hyp_assert_lock_held() Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:27   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 03/21] KVM: arm64: Provide the host_stage2_try() helper macro Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:36   ` Fuad Tabba
2021-08-02  9:36     ` Fuad Tabba
2021-08-02  9:36     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 04/21] KVM: arm64: Introduce helper to retrieve a PTE and its level Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 05/21] KVM: arm64: Expose page-table helpers Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 06/21] KVM: arm64: Optimize host memory aborts Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:37   ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 07/21] KVM: arm64: Rename KVM_PTE_LEAF_ATTR_S2_IGNORED Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:37   ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-08-02  9:37     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 08/21] KVM: arm64: Don't overwrite software bits with owner id Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:38   ` Fuad Tabba
2021-08-02  9:38     ` Fuad Tabba
2021-08-02  9:38     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 09/21] KVM: arm64: Tolerate re-creating hyp mappings to set software bits Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:50   ` Fuad Tabba
2021-08-02  9:50     ` Fuad Tabba
2021-08-02  9:50     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 10/21] KVM: arm64: Enable forcing page-level stage-2 mappings Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02  9:49   ` Fuad Tabba
2021-08-02  9:49     ` Fuad Tabba
2021-08-02  9:49     ` Fuad Tabba
2021-08-03 10:13     ` Quentin Perret
2021-08-03 10:13       ` Quentin Perret
2021-08-03 10:13       ` Quentin Perret
2021-08-03 10:43       ` Fuad Tabba
2021-08-03 10:43         ` Fuad Tabba
2021-08-03 10:43         ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 11/21] KVM: arm64: Allow populating software bits Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 12/21] KVM: arm64: Add helpers to tag shared pages in SW bits Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 10:30   ` Fuad Tabba
2021-08-02 10:30     ` Fuad Tabba
2021-08-02 10:30     ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 13/21] KVM: arm64: Expose host stage-2 manipulation helpers Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 11:13   ` Fuad Tabba
2021-08-02 11:13     ` Fuad Tabba
2021-08-02 11:13     ` Fuad Tabba
2021-08-03 10:20     ` Quentin Perret
2021-08-03 10:20       ` Quentin Perret
2021-08-03 10:20       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 14/21] KVM: arm64: Expose pkvm_hyp_id Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 15/21] KVM: arm64: Introduce addr_is_memory() Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 14:52   ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-03 10:23     ` Quentin Perret
2021-08-03 10:23       ` Quentin Perret
2021-08-03 10:23       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 16/21] KVM: arm64: Enable retrieving protections attributes of PTEs Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-02 14:52   ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-02 14:52     ` Fuad Tabba
2021-08-03 10:24     ` Quentin Perret
2021-08-03 10:24       ` Quentin Perret
2021-08-03 10:24       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 17/21] KVM: arm64: Mark host bss and rodata section as shared Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-03  5:02   ` Fuad Tabba
2021-08-03  5:02     ` Fuad Tabba
2021-08-03  5:02     ` Fuad Tabba
2021-08-03 10:34     ` Quentin Perret
2021-08-03 10:34       ` Quentin Perret
2021-08-03 10:34       ` Quentin Perret
2021-08-03 10:54       ` Fuad Tabba
2021-08-03 10:54         ` Fuad Tabba
2021-08-03 10:54         ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 18/21] KVM: arm64: Remove __pkvm_mark_hyp Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 19/21] KVM: arm64: Refactor protected nVHE stage-1 locking Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-03  5:31   ` Fuad Tabba
2021-08-03  5:31     ` Fuad Tabba
2021-08-03  5:31     ` Fuad Tabba
2021-08-03 10:37     ` Quentin Perret
2021-08-03 10:37       ` Quentin Perret
2021-08-03 10:37       ` Quentin Perret
2021-08-03 10:51       ` Fuad Tabba
2021-08-03 10:51         ` Fuad Tabba
2021-08-03 10:51         ` Fuad Tabba
2021-07-29 13:28 ` [PATCH v3 20/21] KVM: arm64: Restrict EL2 stage-1 changes in protected mode Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-08-03  8:22   ` Fuad Tabba
2021-08-03  8:22     ` Fuad Tabba
2021-08-03  8:22     ` Fuad Tabba
2021-08-03 10:43     ` Quentin Perret
2021-08-03 10:43       ` Quentin Perret
2021-08-03 10:43       ` Quentin Perret
2021-07-29 13:28 ` [PATCH v3 21/21] KVM: arm64: Make __pkvm_create_mappings static Quentin Perret
2021-07-29 13:28   ` Quentin Perret
2021-07-29 13:28   ` Quentin Perret

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