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From: Catalin Marinas <catalin.marinas@arm.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Andrey Konovalov <andreyknvl@google.com>,
	linux-arm-kernel@lists.infradead.org, linux-mm@kvack.org,
	linux-kernel@vger.kernel.org, amd-gfx@lists.freedesktop.org,
	dri-devel@lists.freedesktop.org, linux-rdma@vger.kernel.org,
	linux-media@vger.kernel.org, kvm@vger.kernel.org,
	linux-kselftest@vger.kernel.org,
	Vincenzo Frascino <vincenzo.frascino@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Kees Cook <keescook@chromium.org>,
	Yishai Hadas <yishaih@mellanox.com>,
	Felix Kuehling <Felix.Kuehling@amd.com>,
	Alexander Deucher <Alexander.Deucher@amd.com>,
	Christian Koenig <Christian.Koenig@amd.com>,
	Mauro Carvalho Chehab <mchehab@kernel.org>,
	Jens Wiklander <jens.wiklander@linaro.org>,
	Alex Williamson <alex.williamson@redhat.com>,
	Leon Romanovsky <leon@kernel.org>,
	Luc Van Oostenryck <luc.vanoostenryck@gmail.com>,
	Dave Martin <Dave.Martin@arm.com>,
	Khalid Aziz <khalid.aziz@oracle.com>, enh <enh@google.com>,
	Jason Gunthorpe <jgg@ziepe.ca>,
	Christoph Hellwig <hch@infradead.org>,
	Dmitry Vyukov <dvyukov@google.com>,
	Kostya Serebryany <kcc@google.com>,
	Evgeniy Stepanov <eugenis@google.com>,
	Lee Smith <Lee.Smith@arm.com>,
	Ramana Radhakrishnan <Ramana.Radhakrishnan@arm.com>,
	Jacob Bramley <Jacob.Bramley@arm.com>,
	Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
	Robin Murphy <robin.murphy@arm.com>,
	Kevin Brodsky <kevin.brodsky@arm.com>,
	Szabolcs Nagy <Szabolcs.Nagy@arm.com>
Subject: Re: [PATCH v18 00/15] arm64: untag user pointers passed to the kernel
Date: Wed, 26 Jun 2019 18:18:19 +0100
Message-ID: <20190626171819.GG29672@arrakis.emea.arm.com> (raw)
In-Reply-To: <cover.1561386715.git.andreyknvl@google.com>

Hi Andrew,

On Mon, Jun 24, 2019 at 04:32:45PM +0200, Andrey Konovalov wrote:
> Andrey Konovalov (14):
>   arm64: untag user pointers in access_ok and __uaccess_mask_ptr
>   lib: untag user pointers in strn*_user
>   mm: untag user pointers passed to memory syscalls
>   mm: untag user pointers in mm/gup.c
>   mm: untag user pointers in get_vaddr_frames
>   fs/namespace: untag user pointers in copy_mount_options
>   userfaultfd: untag user pointers
>   drm/amdgpu: untag user pointers
>   drm/radeon: untag user pointers in radeon_gem_userptr_ioctl
>   IB/mlx4: untag user pointers in mlx4_get_umem_mr
>   media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get
>   tee/shm: untag user pointers in tee_shm_register
>   vfio/type1: untag user pointers in vaddr_get_pfn
>   selftests, arm64: add a selftest for passing tagged pointers to kernel
> 
> Catalin Marinas (1):
>   arm64: Introduce prctl() options to control the tagged user addresses
>     ABI
> 
>  arch/arm64/Kconfig                            |  9 +++
>  arch/arm64/include/asm/processor.h            |  8 +++
>  arch/arm64/include/asm/thread_info.h          |  1 +
>  arch/arm64/include/asm/uaccess.h              | 12 +++-
>  arch/arm64/kernel/process.c                   | 72 +++++++++++++++++++
>  .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c  |  2 +-
>  drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c       |  2 +
>  drivers/gpu/drm/radeon/radeon_gem.c           |  2 +
>  drivers/infiniband/hw/mlx4/mr.c               |  7 +-
>  drivers/media/v4l2-core/videobuf-dma-contig.c |  9 +--
>  drivers/tee/tee_shm.c                         |  1 +
>  drivers/vfio/vfio_iommu_type1.c               |  2 +
>  fs/namespace.c                                |  2 +-
>  fs/userfaultfd.c                              | 22 +++---
>  include/uapi/linux/prctl.h                    |  5 ++
>  kernel/sys.c                                  | 12 ++++
>  lib/strncpy_from_user.c                       |  3 +-
>  lib/strnlen_user.c                            |  3 +-
>  mm/frame_vector.c                             |  2 +
>  mm/gup.c                                      |  4 ++
>  mm/madvise.c                                  |  2 +
>  mm/mempolicy.c                                |  3 +
>  mm/migrate.c                                  |  2 +-
>  mm/mincore.c                                  |  2 +
>  mm/mlock.c                                    |  4 ++
>  mm/mprotect.c                                 |  2 +
>  mm/mremap.c                                   |  7 ++
>  mm/msync.c                                    |  2 +
>  tools/testing/selftests/arm64/.gitignore      |  1 +
>  tools/testing/selftests/arm64/Makefile        | 11 +++
>  .../testing/selftests/arm64/run_tags_test.sh  | 12 ++++
>  tools/testing/selftests/arm64/tags_test.c     | 29 ++++++++
>  32 files changed, 232 insertions(+), 25 deletions(-)

It looks like we got to an agreement on how to deal with tagged user
addresses between SPARC ADI and ARM Memory Tagging. If there are no
other objections, what's your preferred way of getting this series into
-next first and then mainline? Are you ok to merge them into the mm
tree?

Thanks.

-- 
Catalin

      parent reply index

Thread overview: 47+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-24 14:32 Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 01/15] arm64: untag user pointers in access_ok and __uaccess_mask_ptr Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 02/15] arm64: Introduce prctl() options to control the tagged user addresses ABI Andrey Konovalov
2019-06-24 15:04   ` Kees Cook
2019-06-24 14:32 ` [PATCH v18 03/15] lib: untag user pointers in strn*_user Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 04/15] mm: untag user pointers passed to memory syscalls Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 05/15] mm: untag user pointers in mm/gup.c Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 06/15] mm: untag user pointers in get_vaddr_frames Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 07/15] fs/namespace: untag user pointers in copy_mount_options Andrey Konovalov
2019-06-24 17:50   ` Catalin Marinas
2019-07-15 16:00     ` Andrey Konovalov
2019-07-22 16:46       ` Kees Cook
2019-06-24 14:32 ` [PATCH v18 08/15] userfaultfd: untag user pointers Andrey Konovalov
2019-06-24 17:51   ` Catalin Marinas
2019-07-15 16:00     ` Andrey Konovalov
2019-07-17 11:09     ` Mike Rapoport
2019-07-17 11:46       ` Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 09/15] drm/amdgpu: " Andrey Konovalov
2019-06-24 15:00   ` Kees Cook
2019-06-24 14:32 ` [PATCH v18 10/15] drm/radeon: untag user pointers in radeon_gem_userptr_ioctl Andrey Konovalov
2019-06-24 15:01   ` Kees Cook
2019-06-24 15:02   ` Kees Cook
2019-06-26 17:50   ` Khalid Aziz
2019-06-24 14:32 ` [PATCH v18 11/15] IB/mlx4: untag user pointers in mlx4_get_umem_mr Andrey Konovalov
2019-06-24 15:01   ` Kees Cook
2019-06-24 17:40   ` Catalin Marinas
2019-07-15 16:01     ` Andrey Konovalov
2019-07-15 18:05       ` Jason Gunthorpe
2019-07-16 10:42         ` Andrey Konovalov
2019-07-16 12:06           ` Jason Gunthorpe
2019-07-17 11:42             ` Andrey Konovalov
2019-07-17 11:44             ` Andrey Konovalov
2019-07-17 11:58               ` Jason Gunthorpe
2019-07-17 13:36                 ` Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 12/15] media/v4l2-core: untag user pointers in videobuf_dma_contig_user_get Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 13/15] tee/shm: untag user pointers in tee_shm_register Andrey Konovalov
2019-06-24 14:32 ` [PATCH v18 14/15] vfio/type1: untag user pointers in vaddr_get_pfn Andrey Konovalov
2019-06-24 14:33 ` [PATCH v18 15/15] selftests, arm64: add a selftest for passing tagged pointers to kernel Andrey Konovalov
2019-06-24 15:02   ` Kees Cook
2019-06-24 17:38   ` Catalin Marinas
2019-08-23 13:56   ` Cristian Marussi
2019-08-23 17:16     ` Andrey Konovalov
2019-08-23 17:49       ` Cristian Marussi
2019-09-04 14:52         ` Andrey Konovalov
2019-09-04 16:22           ` Cristian Marussi
2019-09-04 16:42             ` Andrey Konovalov
2019-06-26 17:18 ` Catalin Marinas [this message]

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